CN217896086U - Vacuum magnetic suspension pipeline telescopic connection structure suitable for large temperature difference condition - Google Patents
Vacuum magnetic suspension pipeline telescopic connection structure suitable for large temperature difference condition Download PDFInfo
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- CN217896086U CN217896086U CN202222002484.6U CN202222002484U CN217896086U CN 217896086 U CN217896086 U CN 217896086U CN 202222002484 U CN202222002484 U CN 202222002484U CN 217896086 U CN217896086 U CN 217896086U
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- temperature difference
- large temperature
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- 239000000725 suspension Substances 0.000 title claims description 18
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 210000001503 joint Anatomy 0.000 abstract description 33
- 230000008878 coupling Effects 0.000 abstract description 21
- 238000010168 coupling process Methods 0.000 abstract description 21
- 238000005859 coupling reaction Methods 0.000 abstract description 21
- 230000005389 magnetism Effects 0.000 abstract description 12
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005339 levitation Methods 0.000 description 13
- 230000006872 improvement Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a vacuum magnetism floats pipeline flexible connection structure suitable for big difference in temperature condition belongs to vacuum pipeline magnetism and floats technical field, and it sets up the tip arch along the hoop through the tip periphery of waiting at two butt joint tube couplings to establish the connecting pipe at the bellied periphery cover of tip, and set up the sealing member between connecting pipe and two tube couplings, set up elastic connection spare between two tube couplings, can reliably realize the flexonics between two tube couplings. The utility model discloses a vacuum magnetism floats pipeline flexible connection structure suitable for big difference in temperature condition, its simple structure, it is convenient to assemble, can realize the flexible butt joint of vacuum pipeline fast, accurately, when guaranteeing pipeline butt joint back end seal nature, provides the condition for the vertical displacement of two pipelines of butt joint, has adapted to the flexible deformation of tube coupling under the big difference in temperature condition effect, has guaranteed reliable setting and the safe operation of pipeline magnetism traffic, possesses better practical value and application prospect.
Description
Technical Field
The utility model belongs to the technical field of vacuum pipe magnetism floats, concretely relates to vacuum magnetism floats pipeline flexible connection structure suitable for big difference in temperature condition.
Background
With the continuous development of rail transit technology in China, rail transit forms are more and more diverse, and play an increasingly important role in daily travel and transportation of people.
Among a plurality of rail transit forms, magnetic suspension pipeline traffic is a relatively novel rail transit form, and a low vacuum environment is built in a pipeline, so that a magnetic suspension train runs in the low vacuum environment, the pneumatic resistance and the pneumatic noise of train running caused by dense air media can be effectively reduced, the running speed of the train is further increased, and the running speed of the train can break through 400Km/h and reach 400-1000 Km/h.
In the operation process of magnetic suspension pipeline transportation, the vacuum degree in the running pipeline needs to be continuously ensured, so that the air tightness control of the vacuum pipeline is very important. Under the general condition, vacuum pipe magnetic levitation traffic's span is big, if only carry out simple rigidity assembly connection to vacuum pipe's equipment, when external environment temperature changes then, vacuum magnetic levitation pipeline then can receive temperature variation to cause flexible deformation, and destructive deformation will take place for the rigid connection position, leads to the inside gas tightness of pipeline to receive the influence, can't normally guarantee pipeline magnetic suspension train's normal operation.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve in the demand one or more, the utility model provides a vacuum magnetism floats pipeline flexible connection structure suitable for big difference in temperature condition can realize the flexonics between the vacuum pipe to the leakproofness after fully guaranteeing between the vacuum pipe end connection guarantees the normal operation of magnetism pipeline traffic.
In order to achieve the purpose, the utility model provides a vacuum magnetic suspension pipeline telescopic connection structure suitable for the condition of large temperature difference, which is used for the flexible connection of the end parts after two pipe joints are coaxially arranged;
the pipe joint comprises a connecting pipe, wherein two ends of the connecting pipe are respectively sleeved on the peripheries of the end parts of the two pipe joints, and end part bulges are respectively arranged on the peripheries of the end parts of the two pipe joints along the circumferential direction, so that the peripheral wall surface of the end part bulge is matched with the inner peripheral wall surface of the connecting pipe in a sliding manner; and is provided with
The end part bulge extends into the connecting pipe for a certain distance, and a sealing element is arranged between the inner wall surface of the connecting pipe and the peripheral wall surfaces of the two pipe joints along the circumferential direction; and
the ends of the two pipe sections are longitudinally spaced at a certain distance, and an elastic connecting piece is longitudinally connected and arranged between the ends of the two pipe sections.
As a further improvement, the elastic connecting pieces are arranged in a plurality of annular intervals.
As a further improvement of the utility model, two ends of the elastic connecting piece are respectively connected to the side wall surfaces opposite to the bulges at the two end parts;
and/or
The elastic connecting piece is an expansion spring in a pretension state.
As a further improvement of the utility model, the sealing element is made of flexible graphite packing or rubber sealing material.
As a further improvement of the utility model, the end protrusions and the corresponding pipe joints are integrally formed; alternatively, the end projections are provided after the pipe section is formed.
As a further improvement of the present invention, a sealing unit is provided between the outer peripheral wall surface of the end portion protrusion and the inner peripheral wall surface of the connecting pipe, for realizing the end portion protrusion and the sliding seal between the connecting pipes.
As a further improvement of the present invention, the sealing units are a plurality of sealing rings arranged along the circumferential direction; and an accommodating ring groove is formed in the circumferential direction of the periphery of the end part bulge corresponding to the sealing ring.
As a further improvement of the utility model, the bottom side of the end part of the two pipe joints which do not extend into the connecting pipe is provided with a saddle, and the corresponding saddles are respectively provided with a longitudinal telescopic support.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model above technical scheme who conceives compares with prior art, the beneficial effect who has includes:
(1) The utility model discloses a vacuum magnetic levitation pipeline flexible connection structure suitable for big difference in temperature condition, it sets up the tip arch along the hoop through the tip periphery of waiting to dock the tube coupling at two, and establish the connecting pipe at the bellied periphery cover of tip, and set up the sealing member between connecting pipe and two tube couplings, set up elastic connection between two tube couplings, the flexonics between two tube couplings has reliably been realized, when guaranteeing the tube coupling leakproofness of magnetic levitation pipeline traffic, the longitudinal displacement demand of two tube couplings under big difference in temperature condition has been satisfied, the reliability of magnetic levitation pipeline traffic magnetic levitation pipeline and circuit setting has been promoted, the safety operation of magnetic levitation traffic has been guaranteed.
(2) The utility model discloses a vacuum magnetic levitation pipeline flexible connection structure suitable for big difference in temperature condition, it sets up through a plurality of elastic connection spare intervals on the hoop for two tube couplings can effectively avoid the relative rotation of hoop upward behind the flexonics, have ensured reliability and security that pipeline and magnetic levitation line set up.
(3) The utility model discloses a vacuum magnetic levitation pipeline flexible connection structure suitable for big difference in temperature condition, it is through setting up the sealing unit between tip arch and connecting pipe, has effectively realized the sealed between tip arch and the connecting pipe, has further promoted the leakproofness after the tube coupling is connected. Meanwhile, the bottom of the two pipe joints is provided with a saddle, a longitudinal telescopic support and other supporting structures, so that the reliability and safety of pipeline connection can be further guaranteed, and the reliable arrangement of magnetic suspension pipeline traffic is realized.
(4) The utility model discloses a vacuum magnetism floats pipeline flexible connection structure suitable for big difference in temperature condition, its simple structure, it is convenient to assemble, can realize the flexible butt joint of vacuum pipeline fast, accurately, when guaranteeing pipeline butt joint back end seal nature, provides the condition for the vertical displacement of two pipelines of butt joint, has adapted to the flexible deformation of tube coupling under the big difference in temperature condition effect, has guaranteed reliable setting and the safe operation of pipeline magnetism traffic, possesses better practical value and application prospect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a longitudinal sectional view of a telescopic connection structure of a vacuum magnetic suspension pipeline in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the vacuum magnetic levitation pipeline telescopic connection structure in the embodiment of the present invention;
in all the figures, the same reference numerals denote the same features, in particular:
1. a first pipe section; 2. a second pipe section; 3. a connecting pipe; 4. a seal member; 5. an elastic connecting member; 6. the end part is convex.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Example (b):
referring to fig. 1-2, the present invention provides a vacuum magnetic suspension pipeline flexible connection structure suitable for large temperature difference condition in a preferred embodiment for flexible connection of the end between the first pipe joint 1 and the second pipe joint 2, which includes a connection pipe 3 having an inner diameter larger than the outer diameter of the two pipe joints for being sleeved on the end periphery of the two pipe joints to realize connection therebetween.
Specifically, the first pipe joint 1 and the second pipe joint 2 in the preferred embodiment are coaxially arranged, the ends of the two pipe joints are longitudinally arranged at a certain distance, and end protrusions 6 are circumferentially arranged on the peripheries of the two pipe joints, and can be integrally formed with the two pipe joints or can be correspondingly arranged after the two pipe joints are formed.
In more detail, the end projections 6 in the preferred embodiment are circular ring structures disposed on the outer periphery of the ends of the corresponding pipe sections, and the outer diameters thereof are disposed corresponding to the inner diameter of the connecting pipe 3, so that the two pipe sections can be slidably matched with the connecting pipe 3 by the end projections 6 of the respective ends. Meanwhile, the end parts of the two pipe joints extend into the two ends of the connecting pipe 3 by a certain depth, so that the two sides of the two end part bulges 6 which deviate from each other are respectively separated from the end surfaces of the embedding ends (the end parts embedded into the corresponding pipe joints) of the connecting pipe 3 by a certain distance, and an annular cavity is formed between the connecting pipe 3 and the peripheral wall surface of the first pipe joint 1 or the second pipe joint 2.
Accordingly, a sealing member 4 is disposed in a circumferential direction in an annular cavity between the connection pipe 3 and the outer peripheral wall surfaces of the two pipe joints, and the inner side of the sealing member is in sealing contact with the outer peripheral wall surfaces of the pipe joints and the outer side of the sealing member is in sealing contact with the inner peripheral wall surfaces of the connection pipe 3, so that the end sealing property after the two pipe joints are connected with the connection pipe 3 can be realized. Meanwhile, the sealing member 4 is spaced apart from the end protrusion 6 by a certain distance in the longitudinal direction, and in actual installation, the sealing member 4 is preferably composed of a flexible graphite packing.
Of course, the sealing member 4 may be provided in other forms or materials, such as rubber sealing material, according to the actual installation requirement. In addition, in actual installation, it is further preferable that sealing means, such as a gasket, which is circumferentially wrapped around the outer periphery of the end projection 6 is provided between the outer peripheral wall surface of the end projection 6 and the inner peripheral wall surface of the coupling pipe 3, so as to improve the sealing performance of the coupling between the two pipe joints and the coupling pipe 3; correspondingly, a plurality of accommodating ring grooves are formed in the circumferential wall surface of the end part bulge 6 in the circumferential direction, so that the sealing ring is embedded and fixed in the accommodating ring grooves.
Further, in order to prevent the two pipe joints from rotating around the shaft after being butted, a plurality of elastic connecting pieces 5 are preferably arranged between the first pipe joint 1 and the second pipe joint 2, as shown in fig. 1. The axis of the elastic connecting piece 5 is parallel to the axis of the pipe joint, and both ends of the elastic connecting piece are respectively connected to the end parts of the pipe joint, and more preferably connected to the side wall surfaces of the two end part bulges 6 opposite to each other. Meanwhile, the elastic connecting piece 5 in the preferred embodiment is preferably in a pre-tensioning state, so that the two pipe sections can move towards or away from each other within a certain longitudinal distance.
Through a plurality of intervals setting of elastic connecting piece 5 on the hoop, 4 that the hoop equidistant setting shown in figure 2 for example, can prevent effectively that two tube couplings from being ascending relative rotation in the hoop, guarantee the reliability after two tube couplings and tube coupling magnetic levitation track structure set up, guarantee the operation reliability after the magnetic levitation circuit sets up.
Furthermore, in a particular embodiment, the elastic connection 5 is preferably an expansion spring in a pretensioned state. Meanwhile, when the two pipe joints are actually arranged, saddles are further arranged on the bottom sides of the end parts, which do not extend into the connecting pipe 3, of the two pipe joints, and longitudinal telescopic supports are arranged corresponding to the saddles respectively, so that reliable arrangement and sealing connection of the two pipe joints are ensured. Accordingly, in actual installation, the bottom of the connecting pipe 3 is preferably fixedly supported on a pier or a foundation.
The utility model provides a vacuum magnetism floats pipeline flexible connection structure suitable for big difference in temperature condition, its simple structure, it is convenient to assemble, can realize the flexible butt joint of vacuum pipe fast, accurately, when guaranteeing pipeline butt joint back end seal nature, provides the condition for the longitudinal displacement of two pipelines of butt joint, has adapted to the flexible deformation of tube coupling under the big difference in temperature condition effect, has guaranteed reliable setting and the safe operation of pipeline magnetism float traffic, possesses better practical value and application prospect.
It will be understood by those skilled in the art that the foregoing is merely exemplary of the present invention, and is not intended to limit the invention to the particular forms disclosed, and all changes, equivalents and modifications that fall within the spirit and scope of the invention are intended to be embraced thereby.
Claims (8)
1. A vacuum magnetic suspension pipeline telescopic connection structure suitable for a large temperature difference condition is used for flexible connection of end parts after two pipe sections are coaxially arranged; it is characterized in that the preparation method is characterized in that,
the pipe joint comprises a connecting pipe, wherein two ends of the connecting pipe are respectively sleeved on the peripheries of the end parts of two pipe joints, and end part bulges are respectively arranged on the peripheries of the end parts of the two pipe joints along the circumferential direction, so that the peripheral wall surface of the end part bulge is matched with the inner peripheral wall surface of the connecting pipe in a sliding manner; and is provided with
The end part bulge extends into the connecting pipe for a certain distance, and a sealing element is arranged between the inner wall surface of the connecting pipe and the peripheral wall surfaces of the two pipe joints along the annular direction; and
the ends of the two pipe sections are longitudinally spaced at a certain distance, and an elastic connecting piece is longitudinally connected and arranged between the ends of the two pipe sections.
2. The telescopic connection structure of a vacuum magnetic suspension pipeline suitable for the large temperature difference condition according to claim 1, wherein the elastic connecting pieces are arranged in a plurality at intervals in a circumferential direction.
3. The vacuum magnetic suspension pipeline expansion connecting structure suitable for the large temperature difference condition according to claim 2, wherein two ends of the elastic connecting piece are respectively connected to the side wall surfaces opposite to the bulges at the two ends;
and/or
The elastic connecting piece is an expansion spring in a pretension state.
4. The vacuum magnetic suspension pipeline expansion connecting structure suitable for the large temperature difference condition according to any one of claims 1 to 3, wherein the sealing element is made of flexible graphite packing or rubber sealing material.
5. The vacuum magnetic suspension pipeline telescopic connection structure suitable for the large temperature difference condition according to any one of claims 1 to 3, wherein the end protrusions and the corresponding pipe sections are integrally formed; alternatively, the end projections are provided after the pipe section is formed.
6. The vacuum magnetic suspension pipeline expansion connecting structure suitable for the large temperature difference condition according to any one of claims 1-3, wherein a sealing unit is arranged between the outer peripheral wall surface of the end protrusion and the inner peripheral wall surface of the connecting pipe for realizing the sliding sealing between the end protrusion and the connecting pipe.
7. The vacuum magnetic suspension pipeline expansion connecting structure suitable for the large temperature difference condition according to claim 6, wherein the sealing units are a plurality of sealing rings arranged along the circumferential direction; and an accommodating ring groove is formed in the circumferential direction of the periphery of the end part bulge corresponding to the sealing ring.
8. The telescopic connection structure of vacuum magnetic suspension pipelines suitable for large temperature difference conditions according to any one of claims 1-3 and 7, wherein saddles are arranged on the bottom sides of the end parts of the two pipe joints which do not extend into the connection pipe, and longitudinal telescopic supports are respectively arranged corresponding to the saddles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222002484.6U CN217896086U (en) | 2022-07-29 | 2022-07-29 | Vacuum magnetic suspension pipeline telescopic connection structure suitable for large temperature difference condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222002484.6U CN217896086U (en) | 2022-07-29 | 2022-07-29 | Vacuum magnetic suspension pipeline telescopic connection structure suitable for large temperature difference condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217896086U true CN217896086U (en) | 2022-11-25 |
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ID=84137773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222002484.6U Active CN217896086U (en) | 2022-07-29 | 2022-07-29 | Vacuum magnetic suspension pipeline telescopic connection structure suitable for large temperature difference condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217896086U (en) |
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2022
- 2022-07-29 CN CN202222002484.6U patent/CN217896086U/en active Active
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