High frequency shielding bellows and synchrotron accelerator having the same

Abstract

The application discloses a high-frequency shielding bellows and a synchrotron radiation accelerator with the same, which comprises a bellows outer tube extending along a first direction; a shielding tube arranged on the radially inner side of the bellows outer tube and comprising two beam flow pipes extending along the first direction and arranged at intervals in the first direction, and the opposite ends of the two beam flow pipes are fixed with the bellows outer tube respectively; and a sliding unit comprising a sliding piece extending along the first direction, the sliding piece being a conductive piece, and the two ends of the sliding piece are configured to be always slidably attached to the beam flow pipe on the same side along the first direction. According to the high-frequency shielding bellows, when the electron beam flows, a continuous mirror wall current path can be formed, good electrical contact is maintained, high-order mode leakage and electron beam instability are effectively inhibited, and the heating phenomenon caused by the excessive wall resistance of the bellows outer tube can be avoided, so that the reliability of the high-frequency shielding bellows is significantly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of synchrotron radiation light shielding, in particular to a high-frequency shielding bellows and a synchrotron radiation accelerator having the same. Background Art

[0002] The corrugated structure of the bellows in synchrotron radiation accelerators is a cavity-like structure that creates severe beam coupling impedance. Because the wall resistance of the bellows is much greater than that of the vacuum chamber wall, wall currents flowing through the bellows generate high heat loads, which can damage the bellows in severe cases. Therefore, conventional bellows are no longer suitable for connecting high-intensity beams to vacuum chambers.

[0003] In the prior art, a high-frequency shielding mechanism is usually provided inside a conventional bellows to shield the electron beam. However, the wall resistance of the outer bellows is usually large, which may easily cause the outer bellows to generate excessive heat and reduce reliability. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a high-frequency shielding bellows that effectively suppresses high-order mode leakage and electron beam instability, while also avoiding heating caused by excessive resistance of the corrugated outer wall, thereby significantly improving the reliability of the high-frequency shielding bellows.

[0005] The present invention also provides a synchrotron radiation accelerator having the high-frequency shielding bellows.

[0006] According to the first aspect of the present invention, the high-frequency shielding bellows includes: a corrugated outer tube, which extends along a first direction; a shielding tube, which is arranged on the radial inner side of the corrugated outer tube and includes: two beam pipes, which extend along the first direction and are arranged at intervals in the first direction, and the opposite ends of the two beam pipes are respectively fixed to the corrugated outer tube; a sliding unit, which includes a sliding part extending along the first direction, the sliding part is a conductive part, and the two ends of the sliding part are respectively configured to always be slidably fitted with the beam pipe on the same side along the first direction.

[0007] According to the high-frequency shielding bellows of the present invention, a corrugated outer tube and a shielding tube are arranged in the high-frequency shielding bellows, the corrugated outer tube extends along a first direction, the shielding tube is arranged on the radial inner side of the corrugated outer tube and includes two beam pipes and a sliding unit, the two beam pipes extend along the first direction and are arranged at intervals in the first direction, and the opposite ends of the two beam pipes are respectively fixed to the corrugated outer tube, the sliding unit includes a sliding part extending along the first direction, the sliding part is a conductive part, and the two ends of the sliding part are respectively configured to always be slidably fitted with the beam pipe on the same side along the first direction, when the electron beam passes through, a continuous mirror wall current path can be formed, good electrical contact is maintained, and high-order mode leakage and electron beam instability are effectively suppressed, while heating caused by excessive resistance of the corrugated outer tube wall can be avoided, thereby significantly improving the reliability of the high-frequency shielding bellows.

[0008] In some embodiments, both ends of the sliding member are respectively in contact with the beam duct surface on the same side.

[0009] In some embodiments, grooves are formed on the outer walls of the two beam ducts, the two grooves are opposite to each other in the first direction, and the two ends of the sliding member are respectively arranged in the two grooves and slide in contact with the bottom walls of the grooves.

[0010] In some embodiments, the sliding unit further includes an abutment member fixed on the beam pipe, and the abutment member is configured to always push the sliding member to abut against the bottom wall of the groove in the radial direction of the beam pipe.

[0011] In some embodiments, a mounting platform is provided on the bottom wall of the groove of the two beam pipes, and an avoidance hole is provided on the sliding member. The avoidance hole extends into a long strip along the first direction, and the mounting platform is located on the inner side of the avoidance hole. The abutment member is an elastic member and corresponds one-to-one to the mounting platform. The abutment member is fixed on the corresponding mounting platform and abuts against the edge of the avoidance hole on one side away from the beam pipe in the radial direction of the beam pipe.

[0012] In some embodiments, the sliding member extends along the first direction into an oblong ring shape and includes a slide portion, a flat plate portion and two arc plate portions. The slide portion and the flat plate portion extend along the first direction and are arranged at intervals in the radial direction of the beam pipe. The two ends of the slide portion are respectively connected to the two ends of the flat plate portion through the two arc plate portions, wherein the two ends of the slide portion are respectively slidably fitted with the outer surfaces of the two beam pipes.

[0013] In some embodiments, the sliding unit further includes a supporting frame extending along the first direction, and the sliding member is sleeved and fixed on the outer side of the supporting frame.

[0014] In some embodiments, the supporting frame includes a connecting plate segment and two arc plate segments, the connecting plate segment extends along the first direction into a long strip plate shape, the two arc plate segments are respectively connected to the two ends of the connecting plate segment, and are respectively adapted and fit with the shape of the two arc plate portions.

[0015] In some embodiments, the flat plate portion includes two first plate segments arranged in the first direction, the opposite ends of the two first plate segments are respectively connected to the two arc plate portions, and the facing ends of the two first plate segments are spaced apart to cooperate to define the gap of the sliding member, and the two first plate segments are fixedly connected to the support frame.

[0016] In some embodiments, the two first plate segments are detachably connected to the supporting frame, and the distance between the two first plate segments is adjustable along the first direction.

[0017] In some embodiments, the support frame is provided with a plurality of adjustment holes arranged at intervals along the first direction, and the sliding unit further includes: a connecting block, to which the facing ends of the two first plate segments are fixedly connected, and a socket extending along a second direction is formed on the connecting block, and the second direction intersects with the first direction; an adjusting pin, which extends along the second direction and is sequentially passed through the socket and any one of the adjustment holes.

[0018] In some embodiments, the support frame includes: a connecting plate section extending along the first direction, the connecting plate section having folded edges on both sides in the second direction that are bent away from the slide portion, a plurality of adjustment holes are formed on the folded edges and pass through the folded edges along the second direction, and the connecting block is arranged between the two folded edges.

[0019] In some embodiments, a baffle is provided on the edge of one side of the two folded edges facing away from the connecting plate segment, and the baffles on the two folded edges extend toward each other along the second direction. Along the third direction, the connecting block is located between the baffle and the connecting plate segment, and the third direction is the radial direction of the beam duct, and the first direction, the second direction and the third direction are perpendicular to each other.

[0020] In some embodiments, there are multiple sliding units, and the multiple sliding units are arranged at intervals along the circumference of the beam duct.

[0021] In some embodiments, the high-frequency shielding bellows further includes: an elastic connection structure, which can be elastically deformed along the first direction, and the sliding unit is connected to the two beam pipes through the elastic connection structure.

[0022] In some embodiments, the two beam pipes are respectively a first beam pipe and a second beam pipe, and the elastic connection structure includes: a synchronization ring, which extends in a ring shape along the circumference of the beam pipe, and the sliding unit is fixed on the synchronization ring; a first elastic member, which is arranged on one side of the synchronization ring in the first direction, extends along the first direction, and is connected between the first beam pipe and the synchronization ring; a second elastic member, which is arranged on the other side of the synchronization ring in the first direction, extends along the first direction, and is connected between the second beam pipe and the synchronization ring.

[0023] In some embodiments, there are multiple first elastic members and they are arranged at intervals along the circumference of the first beam tube; there are multiple second elastic members and they are arranged at intervals along the circumference of the second beam tube; the multiple first elastic members correspond to the multiple second elastic members one by one and are directly opposite in the first direction.

[0024] In some embodiments, the high-frequency shielding bellows further includes: a first fixing ring, which is sleeved and fixed on the outside of the first beam tube and extends radially outward of the first beam tube, and the two ends of the first elastic member are respectively connected to the first fixing ring and the synchronization ring; a second fixing ring, which is sleeved and fixed on the outside of the second beam tube and extends radially outward of the second beam tube, and the two ends of the second elastic member are respectively connected to the second fixing ring and the synchronization ring.

[0025] The synchrotron radiation accelerator according to the second aspect of the present invention comprises: a plurality of vacuum chambers; and a high-frequency shielding bellows according to the first aspect of the present invention, wherein the high-frequency shielding bellows is connected between two adjacent vacuum chambers.

[0026] According to the synchrotron radiation accelerator of the second aspect of the present invention, by providing the high-frequency shielding bellows of the first aspect, when the electron beam passes through the high-frequency shielding bellows, a continuous mirror-image wall current path can be formed, thereby maintaining good electrical contact, effectively suppressing high-order mode leakage and electron beam instability, and at the same time avoiding heating caused by excessive resistance of the outer wall of the bellows, thereby significantly improving the reliability of the synchrotron radiation accelerator.

[0027] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of a high-frequency shielding bellows according to an embodiment of the present invention;

[0029] Figure 2is a schematic diagram of a corrugated outer tube according to an embodiment of the present invention;

[0030] Figure 3 is a schematic diagram of a shielding tube according to an embodiment of the present invention at an angle;

[0031] Figure 4 is a schematic diagram of a shielding tube according to an embodiment of the present invention from another angle;

[0032] Figure 5 is a schematic diagram of a shielding tube according to an embodiment of the present invention from another angle;

[0033] Figure 6 is a schematic diagram of a beam pipeline according to an embodiment of the present invention from an angle;

[0034] Figure 7 is a schematic diagram of a beam pipeline according to an embodiment of the present invention from another angle;

[0035] Figure 8 is a schematic diagram of a sliding unit according to an embodiment of the present invention;

[0036] Figure 9 is a schematic diagram of a sliding member according to an embodiment of the present invention;

[0037] Figure 10 is a schematic diagram of a support frame according to an embodiment of the present invention;

[0038] Figure 11 is a cross-sectional view of a shielding tube according to an embodiment of the present invention;

[0039] Figure 12 is a schematic diagram of a limiting structure according to an embodiment of the present invention;

[0040] Figure 13 is a schematic diagram of a takeover according to an embodiment of the present invention;

[0041] Figure 14 is a schematic diagram of connecting end plates according to an embodiment of the present invention.

[0042] Reference numerals:

[0043] 100. High frequency shielding bellows;

[0044] 10. Corrugated outer tube;

[0045] 11. Bellows;

[0046] 12. Connect the pipe; 121. Install the bump;

[0047] 13. Flange;

[0048] 14. Adapter ring;

[0049] 20. Shielding tube;

[0050] 21, beam pipe; 211, first beam pipe; 2111, first fixing groove; 212, second beam pipe; 2121, second fixing groove;

[0051] 213, groove;

[0052] 214, installation platform;

[0053] 22. Sliding unit;

[0054] 221, sliding member; 2211, sliding plate portion; 22111, avoidance hole; 2212, flat plate portion; 22121, first plate segment; 2213, arc plate portion;

[0055] 222, abutment;

[0056] 223, supporting frame; 2231, connecting plate segment; 2232, arc plate segment; 2233, folding edge; 22331, adjusting hole; 2234, baffle;

[0057] 224, connection block;

[0058] 225, adjusting pin;

[0059] 23. Connect the end plates;

[0060] 30. Elastic connection structure;

[0061] 31. Synchronous ring;

[0062] 32. a first elastic member;

[0063] 33. second elastic member;

[0064] 40. First fixing ring; 41. First fixing portion;

[0065] 50. Second fixing ring; 51. Second fixing portion;

[0066] 60. Limiting structure;

[0067] 61. Limit rod;

[0068] 62. First limiting nut;

[0069] 63. Second limiting nut. DETAILED DESCRIPTION

[0070] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0071] Reference below Figures 1-14 A high-frequency shielding corrugated tube 100 according to an embodiment of a first aspect of the present invention will be described.

[0072] like Figures 1-8 As shown, the high-frequency shielding corrugated tube 100 according to the first embodiment of the present invention includes: a corrugated outer tube 10 and a shielding tube 20.

[0073] The corrugated outer tube 10 extends along a first direction; the shielding tube 20 is arranged on the radial inner side of the corrugated outer tube 10 and includes two beam pipes 21 and a sliding unit 22. The two beam pipes 21 extend along the first direction and are arranged at intervals in the first direction, and the opposite ends of the two beam pipes 21 are respectively fixed to the corrugated outer tube 10. The sliding unit 22 includes a sliding member 221 extending along the first direction. The sliding member 221 is a conductive member. The two ends of the sliding member 221 are respectively configured to always be slidably fitted with the beam pipe 21 on the same side along the first direction.

[0074] In some specific examples, such as Figure 1 and Figure 2 As shown, the first direction is the front-to-back direction, and the corrugated outer tube 10 is extended along the front-to-back direction and is sleeved on the outer side of the shielding tube 20. Figure 3-Figure 7 As shown, the two beam pipes 21 extend in the front-to-back direction and are spaced apart in the first direction. Furthermore, the ends of the two beam pipes 21 facing away from each other are fixed to the corrugated outer tube 10 .

[0075] In some specific examples, such as Figure 4 and Figure 8 As shown, the sliding member 221 extends in the front-to-back direction, the front end of the sliding member 221 can slide and fit with the beam pipe 21 on the front side, and the rear end of the sliding member 221 can slide and fit with the beam pipe 21 on the rear side, and the sliding member 221 is a conductive member, thereby forming a wall current path between the corrugated outer tube 10 and the shielding tube 20.

[0076] In this embodiment, because the two ends of the slider 221 are respectively slidably engaged with the beam duct 21 on the same side along a first direction, and the slider 221 is a conductive member, when the electron beam passes through the high-frequency shielding bellows 100, a continuous mirror-image wall current path is formed between the corrugated outer tube 10 and the shielding tube 20, maintaining good electrical contact. These mirror currents flow along the conductive walls, forming an electromagnetic shielding effect, thereby effectively suppressing high-order mode leakage and electron beam instability. In addition, the slider 221 is a conductive member, and the two ends of the slider 221 are respectively and always slidably engaged with the beam duct 21 on the same side along the first direction, thereby avoiding heat damage caused by excessive wall resistance of the corrugated outer tube 10.

[0077] According to the high-frequency shielding bellows 100 of an embodiment of the present invention, a corrugated outer tube 10 and a shielding tube 20 are provided in the high-frequency shielding bellows 100, the corrugated outer tube 10 extends along a first direction, the shielding tube 20 is arranged on the radial inner side of the corrugated outer tube 10 and includes two beam pipes 21 and a sliding unit 22, the two beam pipes 21 extend along the first direction and are arranged at intervals in the first direction, and the opposite ends of the two beam pipes 21 are respectively fixed to the corrugated outer tube 10, the sliding unit 22 includes a sliding member 221 extending along the first direction, the sliding member 221 is a conductive member, and the two ends of the sliding member 221 are respectively configured to always be slidably fitted with the beam pipe 21 on the same side along the first direction, when the electron beam passes through, a continuous mirror wall current path can be formed, maintaining good electrical contact, effectively suppressing high-order mode leakage and electron beam instability, and at the same time avoiding the heat phenomenon caused by excessive wall resistance of the corrugated outer tube 10, thereby significantly improving the reliability of the high-frequency shielding bellows 100.

[0078] In one embodiment of the present invention, both ends of the sliding member 221 are respectively in contact with the surfaces of the beam pipe 21 on the same side.

[0079] In this embodiment, by setting the two ends of the slider 221 to fit the surfaces of the beam pipe 21 on the same side, the contact area between the slider 221 and the beam pipe 21 can be effectively increased, thereby effectively reducing the resistance and effectively improving the conductive performance of the slider 221.

[0080] In one embodiment of the present invention, Figure 3-Figure 7 As shown, grooves 213 are formed on the outer walls of the two beam pipes 21 . The two grooves 213 face each other in the first direction. Both ends of the sliding member 221 are respectively disposed in the two grooves 213 and slide in contact with the bottom walls of the grooves 213 .

[0081] In some specific examples, such as Figure 3-Figure 7As shown, the outer wall of the beam pipe 21 is recessed from outside to inside along the radial direction of the beam pipe 21 to form a groove 213. The grooves 213 on the outer walls of the two beam pipes 21 are opposite to each other in the front-to-back direction. The two ends of the sliding member 221 are respectively arranged in the two grooves 213 and slide in contact with the bottom wall of the groove 213.

[0082] In this embodiment, grooves 213 are formed on the outer walls of the two beam pipes 21. The two grooves 213 are opposite to each other in the first direction. The two ends of the sliding member 221 are respectively arranged in the two grooves 213 and slide in contact with the bottom walls of the grooves 213. The sliding member 221 can slide in the two grooves 213, thereby effectively improving the sliding stability of the sliding member 221.

[0083] In one embodiment of the present invention, Figure 7 As shown, the sliding unit 22 further includes an abutment 222 , which is fixed to the beam duct 21 . The abutment 222 is configured to always push the sliding unit 221 to abut against the bottom wall of the groove 213 in the radial direction of the beam duct 21 .

[0084] In some specific examples, such as Figure 7 As shown, in the radial direction of the beam duct 21, part of the sliding member 221 is arranged between the abutment 222 and the bottom wall of the groove 213, and the abutment 222 is fixed on the beam duct 21, thereby, the abutment 222 can always push the sliding member 221 to abut the bottom wall of the groove 213, that is, the sliding member 221 can not only slide and fit with the bottom wall of the groove 213, but also can have good contact with the beam duct 21.

[0085] In this embodiment, an abutment 222 is provided in the sliding unit 22. The abutment 222 is fixed to the beam pipe 21. The abutment 222 is configured to always push the sliding member 221 to abut the bottom wall of the groove 213 in the radial direction of the beam pipe 21, thereby improving the reliability of the connection between the sliding member 221 and the beam pipe 21.

[0086] In one embodiment of the present invention, Figure 7 and Figure 8 As shown, a mounting platform 214 is provided on the bottom wall of the groove 213 of the two beam pipes 21, and an avoidance hole 22111 is provided on the sliding member 221. The avoidance hole 22111 extends into a long strip along the first direction. The mounting platform 214 is located on the inner side of the avoidance hole 22111. The abutment member 222 is an elastic member and corresponds one-to-one to the mounting platform 214. The abutment member 222 is fixed on the corresponding mounting platform 214 and abuts against the edge of the avoidance hole 22111 on one side away from the beam pipe 21 in the radial direction of the beam pipe 21.

[0087] In some specific examples, such as Figure 7As shown, the bottom walls of the grooves 213 of the two beam pipes 21 are provided with mounting platforms 214 protruding from the inside to the outside along the radial direction of the beam pipes 21. Figure 8 As shown, the sliding member 221 is provided with two avoidance holes 22111 spaced apart in the front-to-back direction, and the two mounting platforms 214 are respectively provided inside the two avoidance holes 22111. Furthermore, the abutment member 222 is an elastic member and corresponds one-to-one with the mounting platforms 214. The abutment member 222 is fixedly connected to the mounting platforms 214 and abuts against the edge of the avoidance hole 22111 in the radial direction of the beam duct 21, facing away from the beam duct 21.

[0088] In this embodiment, a mounting platform 214 is provided on the bottom wall of the groove 213 of the two beam pipes 21, and an avoidance hole 22111 is provided on the sliding member 221. The avoidance hole 22111 extends into a long strip along the first direction. The mounting platform 214 is located on the inner side of the avoidance hole 22111. The abutment 222 is an elastic member and corresponds one-to-one to the mounting platform 214. The abutment 222 is fixed on the corresponding mounting platform 214 and abuts against the side edge of the avoidance hole 22111 in the radial direction of the beam pipe 21 away from the beam pipe 21, which can make full use of the space in the groove 213, thereby effectively improving the space utilization rate and enhancing the compactness of the beam pipe 21.

[0089] In one embodiment of the present invention, Figure 9 As shown, the sliding member 221 extends along the first direction into an oblong ring shape, and includes a slide portion 2211, a flat plate portion 2212 and two arc plate portions 2213. The slide portion 2211 and the flat plate portion 2212 extend along the first direction and are arranged at intervals in the radial direction of the beam pipe 21. The two ends of the slide portion 2211 are respectively connected to the two ends of the flat plate portion 2212 through the two arc plate portions 2213, wherein the two ends of the slide portion 2211 are respectively slidably fitted with the outer surfaces of the two beam pipes 21.

[0090] In some specific examples, such as Figure 4 and Figure 9 As shown, the slide portion 2211 and the flat plate portion 2212 extend in the front-to-back direction, and in the radial direction of the beam duct 21, the flat plate portion 2212 is located outside the slide portion 2211. Furthermore, the two ends of the slide portion 2211 in the front-to-back direction are connected to the two ends of the flat plate portion 2212 in the front-to-back direction via two arc-shaped plate portions 2213, and the inner side surface of the slide portion 2211 in the radial direction of the beam duct 21 slides and fits with the bottom wall of the groove 213.

[0091] In this embodiment, the sliding member 221 is arranged to be an oblong ring extending along the first direction, and includes a slide portion 2211, a flat plate portion 2212 and two arc plate portions 2213. The slide portion 2211 and the flat plate portion 2212 extend along the first direction and are arranged at intervals in the radial direction of the beam pipe 21. The two ends of the slide portion 2211 are respectively connected to the two ends of the flat plate portion 2212 through the two arc plate portions 2213. The two ends of the slide portion 2211 are respectively slidably fitted with the outer surfaces of the two beam pipes 21, which can effectively optimize the structural construction of the sliding member 221, thereby effectively improving the stability and reliability of the sliding member 221.

[0092] In one embodiment of the present invention, Figure 10 As shown, the sliding unit 22 further includes a supporting frame 223 . The supporting frame 223 extends along a first direction. The sliding member 221 is sleeved and fixed on the outer side of the supporting frame 223 .

[0093] In this embodiment, a support frame 223 is provided in the sliding unit 22, and the support frame 223 extends along the first direction. The sliding member 221 is sleeved and fixed on the outside of the support frame 223, which can effectively increase the structural strength and rigidity of the sliding member 221, thereby effectively reducing the reliability of the sliding member 221 being damaged.

[0094] In one embodiment of the present invention, Figure 10 As shown, the support frame 223 includes a connecting plate segment 2231 and two arc plate segments 2232. The connecting plate segment 2231 extends along the first direction into a long strip plate shape. The two arc plate segments 2232 are respectively connected to the two ends of the connecting plate segment 2231, and are respectively adapted and fit with the shape of the two arc plate portions 2213.

[0095] For example Figure 10 As shown, the connecting plate segment 2231 extends in the front-to-back direction into a long strip-shaped plate, and the two arc plate segments 2232 are respectively connected to the front and rear ends of the connecting plate segment 2231. Furthermore, the two arc plate segments 2232 are respectively adapted to and fit closely with the two arc plate portions 2213 in shape. In other words, the connecting member is in a form-fitting connection with the support frame 223, thereby achieving structural coordination and positioning between the support frame 223 and the sliding member 221.

[0096] In this embodiment, a connecting plate segment 2231 and two arc plate segments 2232 are provided in the support frame 223. The connecting plate segment 2231 extends along the first direction into a long strip-shaped plate. The two arc plate segments 2232 are respectively connected to the two ends of the connecting plate segment 2231, and are respectively adapted to and fit with the shapes of the two arc plate portions 2213. This can make the cooperation between the support frame 223 and the sliding member 221 tighter and the fit more reliable, thereby effectively preventing the sliding member 221 from deviating, shaking or falling off during the sliding process.

[0097] In one embodiment of the present invention, Figure 9 As shown, the flat plate portion 2212 includes two first plate segments 22121 arranged in a first direction, and the opposite ends of the two first plate segments 22121 are respectively connected to the two arc plate portions 2213, and the facing ends of the two first plate segments 22121 are spaced apart to cooperate with the gap that defines the sliding member 221, and the two first plate segments 22121 are fixedly connected to the support frame 223.

[0098] In some specific examples, such as Figure 9 As shown, the two first plate segments 22121 are spaced apart in the front-to-back direction. The opposite ends of the two first plate segments 22121 are connected to the two arcuate plate portions 2213, respectively. The facing ends of the two first plate segments 22121 are spaced apart in the front-to-back direction. This allows the sliding member 221 to have a certain degree of elastic deformation. Furthermore, the two first plate segments 22121 are fixedly connected to the support frame 223, thereby connecting the sliding member 221 and the supporting fixture together.

[0099] In this embodiment, two first plate segments 22121 arranged in a first direction are arranged in the flat plate portion 2212, and the opposite ends of the two first plate segments 22121 are respectively connected to the two arc plate portions 2213, and the facing ends of the two first plate segments 22121 are spaced apart to cooperate in defining the gap of the sliding member 221. The two first plate segments 22121 are fixedly connected to the support frame 223, so that the sliding member 221 has a certain ability of elastic deformation, thereby avoiding the stress concentration phenomenon caused by excessive structural rigidity, and effectively improving the reliability of the sliding member 221.

[0100] In one embodiment of the present invention, the two first plate segments 22121 are detachably connected to the support frame 223 , and the distance between the two first plate segments 22121 is adjustable along the first direction.

[0101] In some specific examples, the two first plate segments 22121 are detachably connected to the support frame 223, which facilitates maintenance of the slider 221 and effectively improves the maintenance efficiency of the slider 221. Furthermore, the spacing between the two first plate segments 22121 is adjustable, that is, the elastic adaptability range of the slider 221 can be adjusted to accommodate different extension lengths, deformation amounts, or installation errors of the corrugated outer tube 10.

[0102] This embodiment can effectively improve the maintenance efficiency of the sliding member 221 by arranging the two first plate segments 22121 and the support frame 223 to be detachably connected, and the spacing between the two first plate segments 22121 is adjustable along the first direction, which can effectively improve the applicability of the sliding member 221 as well as the maintenance efficiency of the sliding member 221.

[0103] In one embodiment of the present invention, Figures 8-10 As shown, the support frame 223 is provided with a plurality of adjustment holes 22331 arranged at intervals along the first direction, and the sliding unit 22 also includes: a connecting block 224, and the opposite ends of the two first plate segments 22121 are fixedly connected with the connecting block 224, and a socket extending along the second direction is formed on the connecting block 224, and the second direction intersects with the first direction; an adjusting pin 225, and the adjusting pin 225 extends along the second direction and is sequentially inserted into the socket and any one of the adjustment holes 22331.

[0104] In some specific examples, such as Figures 8-10 As shown, the second direction is the left-right direction, and the adjusting pin 225 is extended along the left-right direction. The adjusting pin 225 can be inserted into the jack and any adjusting hole 22331, thereby not only connecting the sliding member 221 and the supporting frame 223 together, but also making the elastic force of the sliding member 221 adjustable.

[0105] In this embodiment, a plurality of adjustment holes 22331 arranged at intervals along the first direction are provided on the support frame 223, and the sliding unit 22 also includes: a connecting block 224, to which the facing ends of the two first plate segments 22121 are fixedly connected, and a socket extending along the second direction is formed on the connecting block 224, and the second direction intersects with the first direction; an adjusting pin 225, which extends along the second direction and is sequentially inserted into the socket and any one of the adjustment holes 22331, which can effectively simplify the structural construction of the sliding unit 22 and effectively simplify the adjustment process of the sliding unit 22, thereby effectively improving the convenience of operation.

[0106] In one embodiment of the present invention, Figure 8 and Figure 10 As shown, the support skeleton 223 includes: a connecting plate section 2231 extending along the first direction, and the edges on both sides of the connecting plate section 2231 in the second direction are formed with folded edges 2233 bent away from the slide portion 2211, a plurality of adjustment holes 22331 are formed on the folded edges 2233 and pass through the folded edges 2233 along the second direction, and the connecting block 224 is arranged between the two folded edges 2233.

[0107] In some specific examples, such as Figure 8 and Figure 10 As shown, the connecting plate section 2231 is extended along the front-to-back direction, and a folded edge 2233 is formed on the left and right edges of the connecting plate section 2231. A plurality of adjustment holes 22331 are formed on the folded edge 2233. The plurality of adjustment holes 22331 pass through the folded edge 2233 along the left-right direction. Furthermore, the connecting block 224 is located between the two folded edges 2233.

[0108] In this embodiment, a connecting plate section 2231 extending along the first direction is provided in the support frame 223, and the edges on both sides of the connecting plate section 2231 in the second direction are formed with folded edges 2233 bent away from the slide portion 2211. A plurality of adjustment holes 22331 are formed on the folded edges 2233 and pass through the folded edges 2233 along the second direction. The connecting block 224 is arranged between the two folded edges 2233, which can effectively improve the stability of the connection between the sliding member 221 and the support frame 223.

[0109] In one embodiment of the present invention, Figure 8 and Figure 10 As shown, a baffle 2234 is provided on the edge of one side of the two folded edges 2233 facing away from the connecting plate section 2231, and the baffles 2234 on the two folded edges 2233 extend toward each other along the second direction. Along the third direction, the connecting block 224 is located between the baffle 2234 and the connecting plate section 2231. The third direction is the radial direction of the beam duct 21, and the first direction, the second direction and the third direction are perpendicular to each other.

[0110] In this embodiment, a baffle 2234 is provided on the edge of one side of the two folded edges 2233 away from the connecting plate section 2231. The baffles 2234 on the two folded edges 2233 extend toward each other along the second direction. Along the third direction, the connecting block 224 is located between the baffle 2234 and the connecting plate section 2231. The third direction is the radial direction of the beam duct 21, and the first direction, the second direction and the third direction are perpendicular to each other. This can further improve the stability of the connecting block 224, thereby further improving the reliability of the sliding part 221.

[0111] In one embodiment of the present invention, Figure 3-Figure 5 As shown, there are multiple sliding units 22 , and the multiple sliding units 22 are arranged at intervals along the circumference of the beam duct 21 .

[0112] In some specific examples, such as Figure 3-Figure 5 As shown, the number of sliding units 22 can be four, five, six, seven or more than eight, and the multiple sliding units 22 are arranged at intervals along the circumference of the beam duct 21. This not only effectively reduces the resistance between the corrugated outer tube 10 and the shielding body, but also avoids the risk of damage to the sliding unit 22 due to excessive resistance of a single sliding unit 22, thereby effectively improving the reliability of the sliding unit 22.

[0113] In one embodiment of the present invention, Figure 3-Figure 5 As shown, the high-frequency shielding bellows 100 further includes an elastic connection structure 30 , which can be elastically deformed along a first direction, and the sliding unit 22 is connected to the two beam pipes 21 via the elastic connection structure 30 .

[0114] In some specific examples, such as Figure 3-Figure 5As shown, the elastic connection structure 30 can undergo elastic deformation along the front-to-back direction, and the sliding unit 22 is connected to the two beam pipes 21 through the elastic connection structure 30. Therefore, the elastic connection structure 30 enables the sliding member 221 to automatically adjust its position when the corrugated outer tube 10 is extended or retracted, avoiding jamming or wear caused by rigid connection, thereby effectively coping with the axial deformation of the corrugated outer tube 10 during use.

[0115] In this embodiment, an elastic connection structure 30 is set in the high-frequency shielding bellows 100, and the elastic connection structure 30 can undergo elastic deformation along the first direction. The sliding unit 22 is connected to the two beam pipes 21 through the elastic connection structure 30, so that the sliding part 221 can automatically adjust its position when the corrugated outer tube 10 is extended or retracted, avoiding jamming or wear caused by rigid connection, thereby effectively improving the reliability of the sliding part 221.

[0116] In one embodiment of the present invention, Figure 3-Figure 5 As shown, the two beam pipes 21 are respectively a first beam pipe 211 and a second beam pipe 212, and the elastic connection structure 30 includes: a synchronizer ring 31, which extends in a ring shape along the circumference of the beam pipe 21, and the sliding unit 22 is fixed to the synchronizer ring 31; a first elastic member 32, which is arranged on one side of the synchronizer ring 31 in the first direction, extends along the first direction, and is connected between the first beam pipe 211 and the synchronizer ring 31; and a second elastic member 33, which is arranged on the other side of the synchronizer ring 31 in the first direction, extends along the first direction, and is connected between the second beam pipe 212 and the synchronizer ring 31.

[0117] In some specific examples, such as Figure 3-Figure 5 As shown, the first beam tube 211 is located in front of the second beam tube 212, and the synchronizer ring 31 is fixedly connected to the sliding unit 22. Furthermore, the first elastic member 32 and the second elastic member 33 both extend in the front-to-back direction and are respectively arranged on both sides of the synchronizer ring 31 in the front-to-back direction. The rear end of the first elastic member 32 is connected to the synchronizer ring 31, and the front end of the second elastic member 33 is connected to the synchronizer ring 31.

[0118] In this embodiment, a synchronizer ring 31 is provided in the elastic connection structure 30. The synchronizer ring 31 extends in a ring shape along the circumference of the beam pipe 21. The sliding unit 22 is fixed to the synchronizer ring 31. A first elastic member 32 is arranged on one side of the synchronizer ring 31 in the first direction, extends along the first direction, and is connected between the first beam pipe 211 and the synchronizer ring 31. A second elastic member 33 is arranged on the other side of the synchronizer ring 31 in the first direction, extends along the first direction, and is connected between the second beam pipe 212 and the synchronizer ring 31. This enables the sliding unit 22 to be automatically centered when the corrugated outer tube 10 is extended or retracted, thereby maintaining uniform fit with the first beam pipe 211 and the second beam pipe.

[0119] In one embodiment of the present invention, Figure 3-Figure 5 As shown, there are multiple first elastic members 32 arranged at intervals along the circumference of the first beam tube 211. There are multiple second elastic members 33 arranged at intervals along the circumference of the second beam tube 212. The multiple first elastic members 32 correspond to the multiple second elastic members 33 in a one-to-one manner and face each other in the first direction. For example, the number of first elastic members 32 and second elastic members 33 can be four, five, six, seven, or even eight or more.

[0120] In this embodiment, the number of first elastic members 32 is set to be multiple and arranged at intervals along the circumference of the first beam pipe 211, and the number of second elastic members 33 is set to be multiple and arranged at intervals along the circumference of the second beam pipe 212. The multiple first elastic members 32 correspond to the multiple second elastic members 33 one-to-one and are directly opposite in the first direction. This can effectively improve the balance of force applied to the synchronizer ring 31 in the circumferential direction of the beam pipe 21, thereby effectively reducing the risk of local stress concentration.

[0121] In one embodiment of the present invention, Figure 3-Figure 5 As shown, the high-frequency shielding bellows 100 also includes: a first fixing ring 40, which is sleeved and fixed on the outer side of the first beam tube 211 and extends radially outward from the first beam tube 211, and two ends of the first elastic member 32 are respectively connected to the first fixing ring 40 and the synchronization ring 31; a second fixing ring 50, which is sleeved and fixed on the outer side of the second beam tube 212 and extends radially outward from the second beam tube 212, and two ends of the second elastic member 33 are respectively connected to the second fixing ring 50 and the synchronization ring 31.

[0122] In some specific examples, such as Figure 3-Figure 5 As shown, the first fixing ring 40 is located in front of the second fixing ring 50. The first fixing ring 40 is sleeved and fixed on the front end of the first beam tube 211. The second fixing ring 50 is sleeved and fixed on the rear end of the second beam tube 212. The front end of the first elastic member 32 is connected to the first fixing ring 40, the rear end of the first elastic member 32 is connected to the synchronizer ring 31, the rear end of the second elastic member 33 is connected to the second fixing ring 50, and the front end of the second elastic member 33 is connected to the synchronizer ring 31.

[0123] In this embodiment, a first fixing ring 40 and a second fixing ring 50 are provided in the high-frequency shielding corrugated tube 100. The first fixing ring 40 is sleeved and fixed on the outside of the first beam tube 211 and extends radially outward of the first beam tube 211. The two ends of the first elastic member 32 are respectively connected to the first fixing ring 40 and the synchronizing ring 31. The second fixing ring 50 is sleeved and fixed on the outside of the second beam tube 212 and extends radially outward of the second beam tube 212. The two ends of the second elastic member 33 are respectively connected to the second fixing ring 50 and the synchronizing ring 31. This can effectively improve the reliability of the connection between the first elastic member 32 and the first beam tube 211 and the second elastic member 33 and the second beam tube 212.

[0124] In one embodiment of the present invention, Figure 3-Figure 5 As shown, the first fixing ring 40 has a first fixing portion 41 extending along the first direction, the first fixing portion 41 is annular and is sleeved on the outside of the first beam tube 211, and the first fixing portion 41 is connected to the first beam tube 211 through a first fastener; the second fixing ring 50 has a second fixing portion 51 extending along the first direction, the second fixing portion 51 is annular and is sleeved on the outside of the second beam tube 212, and the second fixing portion 51 is connected to the second beam tube 212 through a second fastener.

[0125] In this embodiment, the first fixing portion 41 is configured as an annular shape and is sleeved on the outside of the first beam tube 211. The first fixing portion 41 and the first beam tube 211 are connected by a first fastener. The second fixing portion 51 is configured as an annular shape and is sleeved on the outside of the second beam tube 212. The second fixing portion 51 and the second beam tube 212 are connected by a second fastener. This can effectively strengthen the structural strength of the first fixing ring 40 and the second fixing ring 50, thereby effectively improving the durability of the first fixing ring 40 and the second fixing ring 50.

[0126] In one embodiment of the present invention, Figure 5 、 Figure 6 and Figure 11 As shown, a plurality of first fastening holes arranged at intervals along the circumference of the first fixing portion 41 are formed on the first fixing portion 41, a first fixing groove 2111 extending in an annular shape along the circumference of the beam pipe 21 is formed on the outer circumferential wall of the first beam pipe 211, and the first fastener extends through the first fastening hole and is fixed in the first fixing groove 2111; a plurality of second fastening holes arranged at intervals along the circumference of the second fixing portion 51 are formed on the second fixing portion 51, a second fixing groove 2121 extending in an annular shape along the circumference of the beam pipe 21 is formed on the outer circumferential wall of the second beam pipe 212, and the second fastener extends through the second fastening hole and is fixed in the second fixing groove 2121.

[0127] In some specific examples, such as Figure 5 and Figure 11As shown, the first fixing portion 41 is formed with a plurality of first fastening holes arranged at intervals along the circumference of the first fixing portion 41. The first fastening holes penetrate the first fixing portion 41 along the radial direction of the beam pipe 21. The outer peripheral wall of the first beam pipe 211 is formed with a first fixing groove 2111 extending in an annular shape along the circumference of the beam pipe 21. For example, Figure 11 As shown, the first fastener is a screw, which passes through the first fastening hole and extends into and is fixed in the first fixing groove 2111.

[0128] In some specific examples, such as Figure 5 and Figure 11 As shown, a plurality of second fastening holes are formed on the second fixing portion 51 and arranged at intervals along the circumference of the second fixing portion 51. The second fastening holes penetrate the second fixing portion 51 in the radial direction of the beam pipe 21. A second fixing groove 2121 is formed on the outer peripheral wall of the second beam pipe 212 and extends in an annular shape along the circumference of the beam pipe 21. The second fastener is a screw, which passes through the first fastening hole and extends into and is fixed in the first fixing groove 2111.

[0129] In this embodiment, a plurality of first fastening holes arranged at intervals along the circumference of the first fixing portion 41 are formed on the first fixing portion 41, a first fixing groove 2111 extending in an annular shape along the circumference of the beam pipe 21 is formed on the outer peripheral wall of the first beam pipe 211, a first fastener extends through the first fastening hole and is fixed in the first fixing groove 2111, a plurality of second fastening holes arranged at intervals along the circumference of the second fixing portion 51 are formed on the second fixing portion 51, a second fixing groove 2121 extending in an annular shape along the circumference of the beam pipe 21 is formed on the outer peripheral wall of the second beam pipe 212, a second fastener extends through the second fastening hole and is fixed in the second fixing groove 2121, this can effectively simplify the connection between the first fixing portion 41 and the first beam pipe 211, and between the second fixing portion 51 and the second beam pipe 212, thereby effectively improving the convenience of assembly.

[0130] In one embodiment of the present invention, Figure 3-Figure 5 As shown, the two beam pipes 21 are relatively movable, and the high-frequency shielding bellows 100 also includes: a limiting structure 60, which is connected between the first beam pipe 211 and the second beam pipe 212, and the limiting structure 60 is configured to limit the relative displacement of the two beam pipes 21 in the axial, radial and / or circumferential directions.

[0131] For example, the limiting structure 60 is configured to limit the relative displacement of the two beam pipes 21 in the axial direction; for another example, the limiting structure 60 is configured to limit the relative displacement of the two beam pipes 21 in the radial direction; for another example, the limiting structure 60 is configured to limit the relative displacement of the two beam pipes 21 in the circumferential direction.

[0132] In this embodiment, a limiting structure 60 is provided in the high-frequency shielding bellows 100. The limiting structure 60 is connected between the first beam pipe 211 and the second beam pipe 212. The limiting structure 60 is configured to limit the relative displacement of the two beam pipes 21 in the axial, radial and / or circumferential directions. It can not only effectively avoid excessive relative displacement between the first beam pipe 211 and the second beam pipe 212, thereby effectively protecting the first beam pipe 211 and the second beam pipe 212, but also allow appropriate relative movement between the first beam pipe 211 and the second beam pipe 212, thereby effectively improving the applicability of the high-frequency shielding bellows 100.

[0133] In one embodiment of the present invention, Figure 3-Figure 5 As shown, the limiting structure 60 includes: a limiting rod 61, which extends along the first direction, one end of the limiting rod 61 is fixedly connected to the first fixing ring 40, and the other end of the limiting rod 61 is movably connected to the second fixing ring 50.

[0134] In some specific examples, such as Figure 3-Figure 5 As shown, the limiting rod 61 is extended in the front-to-back direction, the front end of the limiting rod 61 is connected to the first fixing ring 40, and the rear end of the limiting rod 61 is movably connected to the second fixing ring 50, thereby providing a limited relative range of motion between the first beam tube 211 and the second beam tube 212.

[0135] In this embodiment, a limiting rod 61 is provided in the limiting structure 60. The limiting rod 61 extends along the first direction. One end of the limiting rod 61 is fixedly connected to the first fixing ring 40, and the other end of the limiting rod 61 is movably connected to the second fixing ring 50. Thus, the structural construction of the limiting structure 60 can be simplified, thereby facilitating production and manufacturing, thereby effectively reducing costs.

[0136] In one embodiment of the present invention, Figure 12 As shown, a fixing hole is provided on the first fixing ring 40, and a limiting hole is provided on the second fixing ring 50. One end of the limiting rod 61 is passed through and fixed in the fixing hole, and the other end of the limiting rod 61 is passed through the limiting hole and is loosely matched with the limiting hole. The other end of the limiting rod 61 is sleeved with a first limiting nut 62 and a second limiting nut 63. The first limiting nut 62 and the second limiting nut 63 are respectively located on both sides of the second fixing ring 50, and the distance between the first limiting nut 62 and the second limiting nut 63 is greater than the depth of the limiting hole.

[0137] In some specific examples, such as Figure 12As shown, the first limiting nut 62 and the second limiting nut 63 are respectively located on both sides of the second fixing ring 50 in the front-to-back direction, the diameter of the limiting rod 61 is smaller than the aperture of the limiting hole, and the distance between the first limiting nut 62 and the second limiting nut 63 is greater than the depth of the limiting hole, thereby allowing the rear end of the limiting rod 61 to move in the limiting hole.

[0138] In this embodiment, a fixing hole is provided on the first fixing ring 40, and a limiting hole is provided on the second fixing ring 50. One end of the limiting rod 61 is passed through and fixed in the fixing hole, and the other end of the limiting rod 61 is passed through the limiting hole and is gap-matched with the limiting hole. The other end of the limiting rod 61 is sleeved with a first limiting nut 62 and a second limiting nut 63. The first limiting nut 62 and the second limiting nut 63 are respectively located on both sides of the second fixing ring 50, and the distance between the first limiting nut 62 and the second limiting nut 63 is greater than the depth of the limiting hole, which can effectively ensure that the other end of the limiting rod 61 is movable in the limiting hole, thereby effectively ensuring the flexibility of the limiting rod 61, and thereby effectively improving the reliability of the limiting structure 60.

[0139] In one embodiment of the present invention, Figure 3-Figure 5 As shown, there are multiple limiting rods 61, and the multiple limiting rods 61 are arranged at intervals along the circumference of the beam duct 21. For example, the number of limiting rods 61 can be four, five, six, seven, or more than eight.

[0140] In this embodiment, the number of the limiting rods 61 is set to be multiple, and the multiple limiting rods 61 are arranged at intervals along the circumference of the beam duct 21, which can prevent a single limiting rod 61 from being subjected to excessive force, thereby effectively protecting the limiting rods 61.

[0141] In one embodiment of the present invention, Figure 2 As shown, the corrugated outer tube 10 includes: a corrugated tube 11, the axis of the corrugated tube 11 extends along a first direction; two connecting pipes 12, the two connecting pipes 12 are respectively connected to the two ends of the corrugated tube 11; two flanges 13, the two flanges 13 are respectively connected to the ends of the two connecting pipes 12 away from the corrugated tube 11. In some specific examples, such as Figure 2 As shown, the corrugated outer tube 10 further includes two adapter rings 14 , which are respectively provided at both ends of the corrugated tube 11 in the front-to-back direction, and the adapter rings 14 are provided between the connecting pipe 12 and the corrugated tube 11 .

[0142] In this embodiment, a bellows 11, two connecting pipes 12 and two flanges 13 are provided in the bellows outer tube 10. The axis of the bellows 11 extends along the first direction. The two connecting pipes 12 are respectively connected to the two ends of the bellows 11. The two flanges 13 are respectively connected to the ends of the two connecting pipes 12 facing away from the bellows 11. This can effectively simplify the structural construction of the bellows outer tube 10, thereby facilitating the production and manufacturing of the bellows outer tube 10.

[0143] In one embodiment of the present application, as shown in Figure 2 and Figure 13 the inner circumferential wall of the corrugated outer tube 10 is provided with a plurality of mounting lugs 121 arranged along the circumference of the corrugated outer tube 10, and the shielding tube 20 further comprises two connecting end plates 23, which are annular and respectively sleeved and fixed at the ends of the two beam ducts 21 in the first direction, and the connecting end plates 23 are fixed with the mounting lugs 121 by fasteners.

[0144] For example, the number of mounting lugs 121 can be three, four, five, six, and more than seven. In some specific examples, as shown in Figure 2 and Figure 13 the inner circumferential wall of the connecting pipe 12 is provided with a plurality of mounting lugs 121 arranged along the circumference of the corrugated outer tube 10, and the connecting end plates 23 are fixed with the mounting lugs 121 by fasteners, so that the shielding tube 20 can be installed on the corrugated outer tube 10.

[0145] The embodiment can effectively improve the reliability of the connection between the shielding tube 20 and the corrugated outer tube 10 by providing a plurality of mounting lugs 121 arranged along the circumference of the corrugated outer tube 10 on the inner circumferential wall of the corrugated outer tube 10, and the shielding tube 20 further comprises two connecting end plates 23, which are annular and respectively sleeved and fixed at the ends of the two beam ducts 21 in the first direction, and the connecting end plates 23 are fixed with the mounting lugs 121 by fasteners.

[0146] The synchrotron accelerator according to the second aspect of the present application comprises: a plurality of vacuum chambers; and the high-frequency shielding corrugated tube 100 according to the first aspect of the present application, which is connected between two adjacent vacuum chambers.

[0147] According to the synchrotron accelerator of the second aspect of the present application, by providing the high-frequency shielding corrugated tube 100 of the first aspect, when the electron beam passes through the high-frequency shielding corrugated tube 100, a continuous mirror wall current path can be formed, good electrical contact is maintained, high-order mode leakage and electron beam instability are effectively suppressed, and the heating phenomenon caused by excessive wall resistance of the corrugated outer tube 10 is avoided, thereby significantly improving the reliability of the synchrotron accelerator.

[0148] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0149] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0150] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0151] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0152] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A high-frequency shielding corrugated tube, characterized in that: include: a corrugated outer tube extending along a first direction; a shielding pipe, the shielding pipe being arranged radially inward of the corrugated outer pipe and comprising: Two beam pipes, the two beam pipes extending along the first direction and spaced apart in the first direction, and opposite ends of the two beam pipes being fixed to the corrugated outer tube respectively; a sliding unit, the sliding unit comprising a sliding member extending along the first direction, the sliding member being a conductive member, and both ends of the sliding member being respectively configured to always be slidably engaged with the beam pipe on the same side along the first direction; A groove is formed on the outer peripheral wall of each of the two beam pipes, and the two grooves are opposite to each other in the first direction. The two ends of the sliding member are respectively arranged in the two grooves and slidably fit with the bottom walls of the grooves. The sliding unit further includes an abutment member fixed on the beam pipe, and the abutment member is configured to: always push the sliding member to abut against the bottom wall of the groove in the radial direction of the beam pipe; A mounting platform is provided on the bottom wall of the groove of each of the two beam pipes, an avoidance hole is provided on the sliding member, and the avoidance hole extends in a long strip along the first direction. The mounting platform is located inside the avoidance hole. The abutment member is an elastic member and corresponds to the mounting platform one by one. The abutment member is fixed on the corresponding mounting platform and abuts against an edge of the avoidance hole on a side away from the beam pipe in the radial direction of the beam pipe; The sliding member extends in the first direction into an oblong ring shape and includes a slide portion, a flat plate portion, and two arc plate portions. The slide portion and the flat plate portion extend in the first direction and are spaced apart in the radial direction of the beam pipe. Two ends of the slide portion are connected to two ends of the flat plate portion through the two arc plate portions. Wherein, the two ends of the slide plate are respectively slidably fitted with the outer surfaces of the two beam pipes; The sliding unit further includes a supporting frame extending along the first direction, and the sliding member is sleeved and fixed on the outer side of the supporting frame; The support frame includes a connecting plate segment and two arc plate segments. The connecting plate segment extends along the first direction into a long strip plate shape. The two arc plate segments are respectively connected to the two ends of the connecting plate segment and are respectively adapted and fitted with the shapes of the two arc plate portions.

2. The high-frequency shielding corrugated tube according to claim 1, characterized in that: The flat plate portion includes two first plate segments arranged in the first direction, the opposite ends of the two first plate segments are respectively connected to the two arc plate portions, and the facing ends of the two first plate segments are spaced apart to cooperate to define the gap of the sliding member, and the two first plate segments are fixedly connected to the support frame.

3. The high-frequency shielding corrugated tube according to claim 2, characterized in that: The two first plate segments are detachably connected to the support frame, and the distance between the two first plate segments is adjustable along the first direction.

4. The high-frequency shielding corrugated tube according to claim 3, characterized in that: The support frame is provided with a plurality of adjustment holes spaced apart along the first direction, and the sliding unit further comprises: a connecting block, to which the facing ends of the two first plate segments are fixedly connected, and a socket extending along a second direction intersecting the first direction is formed on the connecting block; An adjusting pin extends along the second direction and is sequentially inserted into the insertion hole and any one of the adjusting holes.

5. The high-frequency shielding corrugated tube according to claim 4, characterized in that: The supporting frame includes: a connecting plate section extending along the first direction, and the two side edges of the connecting plate section in the second direction are formed with folded edges bent away from the slide portion, and multiple adjustment holes are formed on the folded edges and pass through the folded edges along the second direction, and the connecting block is arranged between the two folded edges.

6. The high-frequency shielding corrugated tube according to claim 5, characterized in that: A baffle is provided on one edge of the two folded edges facing away from the connecting plate segment, and the baffles on the two folded edges extend toward each other along the second direction. Along the third direction, the connecting block is located between the baffle and the connecting plate segment. The third direction is the radial direction of the beam duct, and the first direction, the second direction and the third direction are perpendicular to each other.

7. The high-frequency shielding corrugated tube according to any one of claims 1 to 6, characterized in that: There are multiple sliding units, and the sliding units are arranged at intervals along the circumference of the beam duct.

8. The high-frequency shielding corrugated tube according to claim 1, characterized in that: Also includes: An elastic connection structure, wherein the elastic connection structure can be elastically deformed along the first direction, and the sliding unit is connected to the two beam pipes via the elastic connection structure.

9. The high-frequency shielding corrugated tube according to claim 8, characterized in that: The two beam pipes are respectively a first beam pipe and a second beam pipe, and the elastic connection structure includes: a synchronizer ring extending in a ring shape along the circumference of the beam pipe, and the sliding unit being fixed on the synchronizer ring; a first elastic member, which is arranged on one side of the synchronizer ring in the first direction, extends along the first direction, and is connected between the first beam pipe and the synchronizer ring; A second elastic member is arranged on the other side of the synchronizer ring in the first direction, extends along the first direction, and is connected between the second beam pipe and the synchronizer ring.

10. The high-frequency shielding corrugated tube according to claim 9, characterized in that: There are a plurality of first elastic members, which are arranged at intervals along the circumference of the first beam tube; there are a plurality of second elastic members, which are arranged at intervals along the circumference of the second beam tube; the plurality of first elastic members correspond to the plurality of second elastic members one by one and are directly opposite in the first direction.

11. The high-frequency shielding corrugated tube according to claim 9, characterized in that: Also includes: a first fixing ring, which is sleeved and fixed on the outside of the first beam tube and extends radially outward of the first beam tube, and two ends of the first elastic member are respectively connected to the first fixing ring and the synchronization ring; The second fixing ring is sleeved and fixed on the outside of the second beam tube and extends radially outward of the second beam tube. Both ends of the second elastic member are respectively connected to the second fixing ring and the synchronization ring.

12. A synchrotron radiation accelerator, characterized in that: include: Multiple vacuum chambers; The high-frequency shielding bellows according to any one of claims 1 to 11, wherein the high-frequency shielding bellows is connected between two adjacent vacuum chambers.

Images