CN114791177B - Cryocooler for MRI - Google Patents
Cryocooler for MRI Download PDFInfo
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- CN114791177B CN114791177B CN202210077289.1A CN202210077289A CN114791177B CN 114791177 B CN114791177 B CN 114791177B CN 202210077289 A CN202210077289 A CN 202210077289A CN 114791177 B CN114791177 B CN 114791177B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
Abstract
The invention discloses a low-temperature refrigerator for MRI, which relates to the field of medical equipment and comprises a central module for refrigerating and a transmission module for transmitting low temperature, wherein the transmission module comprises a transmission pipe capable of conducting intermittent airtight external transmission.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a cryocooler for MRI.
Background
MRI is nuclear magnetic resonance, and when nuclear magnetic resonance is detected, it is generally necessary to use a cryocooler to perform auxiliary operation, and to cool the interior of the container by condensation transmission, and because of the limitation of the distance between the transmission end and the container, the effect of condensing a part of a long-distance region is poor during transmission, and meanwhile, the long-distance region cannot be effectively transmitted during condensation transmission, so that the relative condensation is achieved by diffusion as much as possible.
Disclosure of Invention
The present invention is directed to providing a cryocooler for MRI to solve the problems set forth in the background art described above.
In order to achieve the above purpose, the present invention provides the following technical solutions: the low-temperature refrigerator for MRI comprises a central module for refrigerating and a transmission module for transmitting low temperature, wherein the transmission module comprises a transmission pipe capable of carrying out intermittent airtight external transmission, and the central module comprises an equipment box for loading refrigerating solution, a compressor for refrigerating operation, a refrigerator and a low-temperature cold head.
Preferably, the transmission module further comprises a transmission limiting plate and a middle partition plate for limiting blocking, a flow regulating groove for transmitting condensed gas, a fixed pipe, a rubber pipe, a fixed plate and a transmission device, wherein the transmission limiting plate is embedded on the left side wall of the inner side of the equipment box, the middle partition plate is fixedly installed on the left side wall of the transmission limiting plate, the flow regulating groove is arranged in the middle partition plate, the fixed plate is arranged in the inner side area of the equipment box, the fixed pipes are two groups, the two groups of fixed pipes are respectively fixedly installed on the wall surfaces of the corresponding positions of the middle partition plate and the fixed plate, the rubber pipe is fixedly installed at the position between the two groups of fixed pipes, the transmission device is arranged on the right side of the fixed plate, and a rubber rod for fixing and limiting the rubber pipe is fixedly installed between the two groups of fixed pipes.
Preferably, the transmission device comprises a transmission device for transmitting the condensed gas in the equipment box and a regulating device for controlling the transmission device to perform frequency regulation.
Preferably, the transmission pipe gap is hermetically arranged on the left side wall surface of the middle partition plate, the transmission pipe comprises an outer pipe for fixed transmission and an inner pipe for dynamic transmission, the outer pipe is fixedly arranged on the left side wall of the middle partition plate, the inner pipe is arranged on the inner side of the outer pipe, and outer holes and inner holes which can be staggered and interacted are respectively formed in the outer pipe and the inner pipe.
Preferably, the transmission pipe further comprises a limiting deformation block for elastic adjustment and a closed rubber plate capable of being subjected to closed extrusion, the limiting deformation block is discontinuously embedded on the inner side wall of the inner pipe, the limiting deformation block is located at the left end of the inner hole, the closed rubber plate is composed of an arc-shaped block bent leftwards from the inner side and an outer cylindrical rod, the arc-shaped block is fixedly mounted on the inner side wall of the limiting deformation block, the cylindrical rod is fixedly mounted on the outer side wall of the limiting deformation block, and one end of the closed rubber plate, which is far away from the limiting deformation block, is fixedly mounted on the inner corresponding position wall surface of the outer pipe.
Preferably, annular fixed mounting has the deformation offset plate that can carry out elastic deformation on the outside lateral wall of fixed plate, the inboard clearance fixed mounting of deformation offset plate has the connection auxiliary rod that can carry out the adaptation adjustment according to the deformation offset plate, the position fixed mounting that corresponds the connection auxiliary rod on the well baffle has the glue piece that can atress deformation, fixed mounting has interior movable rod on the lateral wall of glue piece one end of keeping away from the connection auxiliary rod, interior movable rod is kept away from glue piece one end slope mirror image fixed mounting and is used for connecting the connecting block of inner tube inside wall two sets of, the through-hole has been seted up to the position clearance that corresponds the transmission tube on the left side lateral wall of well baffle, the inner tube passes through the inside that the through-hole extends to the regulation chute on the well baffle, and the corresponding position lateral wall fixed mounting of connecting block is on the inboard corresponding position lateral wall of inner tube.
Preferably, the inside of equipment box is provided with the flow regulating device that can carry out upper and lower mutual conduction to the inboard solution of equipment box, flow regulating device comprises two sets of restraining device, two sets of transmission and drive control device, and two sets of restraining device are corresponding to be arranged around respectively, and restraining device is including the drive rail that is used for fixed restriction and packing extension board and be used for the transmission of function drive belt and transfer pole, fills the extension board and packs in the inboard region of drive rail, fills the top and the bottom clearance of extension board and leaves the slotted hole that is used for driving the transmission, and the drive belt cup joints on the outside lateral wall of drive rail, transfers the clearance fixed mounting of pole and is close to one side lateral wall each other at two adjacent sets of drive belts.
Preferably, the transmission device comprises a transmission wheel, a transmission shaft, and a linked lantern ring and a transmission crawler belt, wherein the transmission wheel is arranged in a slotted hole reserved on the limiting device and used for driving transmission, the transmission shaft is fixedly arranged on the inner side walls of the front transmission wheel and the rear transmission wheel, the lantern ring is fixedly arranged on the rear end side wall of the transmission shaft, and the transmission crawler belt is movably sleeved on the two sets of lantern rings which are correspondingly arranged up and down.
Preferably, the driving control device comprises a driving device for driving and a limiting rod for fixing, wherein the output end of the driving device is communicated with a group of transmission shafts at the bottom, the limiting rod is fixedly arranged on the side walls of the front side and the rear side of the driving device, and one end of the limiting rod, which is far away from the driving device, is fixedly arranged on the side wall of the corresponding position of the filling support plate.
Preferably, two groups of arc-shaped capturing plates which are convenient for capturing and guiding the solution are symmetrically and fixedly arranged on the outer side wall of the mobilizing rod in a clearance mode.
Compared with the prior art, the invention has the beneficial effects that:
(1) This low temperature refrigerator for MRI, when equipment is carrying out the operation, through the upper and lower mutual conduction solution of flow regulating device, thereby make the deformation offset in corresponding region receive the striking, thereby drive and connect the auxiliary rod and promote the inner tube indirectly and remove in the outer tube is inside, thereby make the hole on the inner tube and the outer hole on the outer tube misplace, make the transmission tube constitute airtight space, thereby make the condensation gas of equipment incasement portion transmission carry out adaptation volume transmission as far as possible in airtight transmission tube inside, when the deformation offset resets, the inner tube can carry out the rebound, thereby make the outer hole on the outer tube and the hole on the inner tube carry out the reconvergence with the condensation gas discharge, thereby reach the effect that fully carries out the condensation processing of equivalent adaptation to long distance region, realize far and near distance refrigeration effect's automatic equalization.
(2) According to the low-temperature refrigerator for MRI, the inner tube is moved back, so that the limiting deformation blocks of the two corresponding areas on the inner side of the inner tube are closed, the inner side of the inner tube is forced to form a plurality of closed areas, the phenomenon that condensed gas is lost and unbalanced due to external influence is reduced to the greatest extent, and meanwhile, the equal-quantity condensation treatment can be fully ensured.
(3) According to the low-temperature refrigerator for MRI, the solution in the equipment box is transmitted in an up-down interaction mode, so that the condensation reaction in the equipment box can be more sufficient, the effect of condensation treatment in the equipment box is improved, the occurrence of insufficient condensation supply is further reduced, and the condensation effect is greatly improved.
(4) This MRI uses cryocooler through the capture board on the transfer pole, when transfer device is carrying out the operation, transfer the capture board on the pole and can catch and restrict inside solution, when transfer the pole and remove to the high point and carry out the transmission to the low point, transfer the inside solution of capture board on the pole and can effectually carry out abundant catapulting to deformation offset plate to improve transmission effect and efficiency of transfer line, further improve the condensation effect.
(5) This low temperature refrigerator for MRI, the deformation offset plate that the transmission pipe through airtight setting was arranged like circular arc, when the deformation offset plate received the striking, receive the restriction of transmission limiting plate, the transmission pipe of outer lane can't carry out the deformation of great dynamics, thereby make the transmission pipe unable fully airtight, thereby make outer lane transmission pipe condense in the short distance as far as possible, simultaneously, the condensed gas that transmission pipe transmitted can transmit the inboard region of many groups transmission pipe intensive arrangement, it is restricted inboard as far as possible through outside transmission pipe restriction, through inside and outside range difference, make the condensed gas overlap in multiunit transmission pipe inboard region gradually, thereby when the transmission pipe carries out outer transmission in the time of inboard transmission, receive compressive force and transmission force influence along with the condensed gas on the inboard transmission pipe, thereby carry out the cold make-up of adaptation formula to corresponding position region, thereby reach the effect that effectively abundant carries out the condensation.
Drawings
FIG. 1 is a schematic view showing the overall structure of a cryocooler for MRI according to the present invention;
FIG. 2 is a schematic view of the internal structure of the equipment cabinet of the present invention;
FIG. 3 is an enlarged schematic view of a partial structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic view of a partial structure of a transfer tube according to the present invention;
FIG. 5 is a schematic diagram of a partial structure of a flow regulating device according to the present invention;
FIG. 6 is a schematic view of a partial structure of the mobilizer lever of the present invention;
fig. 7 is a schematic view of a part of the structure of the collar of the present invention.
In the figure: 1. an equipment box; 2. a transmission limiting plate; 3. a transmission tube; 4. a compressor; 5. a refrigerating machine; 6. a low-temperature cold head; 7. a middle partition plate; 8. a flow regulating groove; 9. a fixed tube; 10. a rubber tube; 11. a rubber rod; 12. a fixing plate; 13. a transmission device; 14. a flow regulating device; 15. a deformed rubber plate; 16. connecting an auxiliary rod; 17. a through hole; 18. an inner tube; 19. a glue block; 20. an inner movable rod; 21. a connecting block; 22. an outer tube; 23. an outer aperture; 24. an inner bore; 25. limiting the deformation block; 26. closing the rubber plate; 27. a transmission rail; 28. a driving wheel; 29. a transmission shaft; 30. filling a support plate; 31. a transmission belt; 32. a mobilizing lever; 33. a collar; 34. a restraining bar; 35. a driving device; 36. a capture plate; 37. and (5) a transmission crawler belt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, the present invention provides a technical solution: the low-temperature refrigerator for MRI comprises a central module for refrigerating and a transmission module for transmitting low temperature, wherein the transmission module comprises a transmission pipe 3 capable of carrying out intermittent airtight external transmission.
The central module comprises an equipment box 1, a compressor 4, a refrigerator 5 and a low-temperature cold head 6, wherein a hollow area in the equipment box 1 is obliquely arranged from left to right, the inside of the equipment box 1 is used for loading refrigerating solution, the compressor 4 is fixedly arranged at a position above the right side wall of the equipment box 1, the refrigerator 5 and the compressor 4 are electrically connected with each other, the low-temperature cold head 6 is fixedly arranged at the output end position of the refrigerator 5, and refrigerating operation is performed in the equipment box 1 through the compressor 4, the refrigerator 5 and the low-temperature cold head 6.
The transmission module further comprises a transmission limiting plate 2, a middle partition plate 7, a flow regulating groove 8, a fixed pipe 9, a rubber pipe 10, a rubber rod 11, a fixed plate 12 and a transmission device 13, wherein the transmission limiting plate 2 is in a rectangular frame shape, the transmission limiting plate 2 is fixedly installed on the left side wall of the equipment box 1, the right end of the transmission limiting plate 2 penetrates through the corresponding position wall surface of the equipment box 1 to extend to the inner side of the equipment box 1, the middle partition plate 7 is in a rectangular plate shape, the middle partition plate 7 is fixedly installed on the inner side middle position side wall of the transmission limiting plate 2, the flow regulating groove 8 is formed in the inner side of the middle partition plate 7, the size of the flow regulating groove 8 is matched with the inner size of the middle partition plate 7, the fixed pipe 9 is in a circular pipe shape, the fixed pipe 9 is in two groups, the two groups of fixed pipes 9 are arranged in a clearance mode, the leftmost group of fixed pipes 9 are fixedly installed on the middle position wall surface of the right side area of the flow regulating groove 8, the leftmost group of fixed pipes 9 penetrate through the corresponding position wall surface of the middle partition plate 7 and the inner side of the middle partition plate 7 are mutually communicated, the rubber pipe 10 is fixedly installed on the two groups of fixed pipe 9 are mutually adjacent to the inner side wall surfaces of the rectangular pipe 12, the right side wall 12 is fixedly installed on the right side wall 12 is fixedly adjacent to the right side wall 12, respectively adjacent to the right side wall is fixedly installed on the right side wall 12 is mutually adjacent to the right side wall is fixedly installed on the right side 12.
The transmission device 13 comprises transmission equipment and regulation equipment, the condensed gas in the equipment box 1 is transmitted through the transmission equipment, the frequency regulation setting can be carried out on the transmission equipment through the regulation equipment, and the transmission frequency of the transmission equipment is controlled.
The transmission pipe 3 is arranged on the left side wall of the middle partition 7 in a clearance way, the transmission pipe 3 comprises an inner pipe 18, an outer pipe 22, an outer hole 23, an inner hole 24, a deformation limiting block 25 and a closing rubber plate 26, wherein the outer pipe 22 is fixedly arranged on the left side corresponding position side wall of the middle partition 7, the inner pipe 18 is arranged on the inner side of the outer pipe 22, the outer hole 23 and the inner hole 24 are respectively staggered and intermittently arranged on the corresponding position side walls of the outer pipe 22 and the inner pipe 18, the deformation limiting block 25 is intermittently embedded on the inner side wall of the inner pipe 18, the deformation limiting block 25 is positioned at the left end position of the inner hole 24, the closing rubber plate 26 consists of an arc-shaped block and an outer cylindrical rod, the inner side of which is bent leftwards, on the inner side, the circular arc-shaped block is fixedly arranged on the inner side wall of the deformation limiting block 25, the cylindrical rod is fixedly arranged on the outer side wall of the deformation limiting block 25, one end of the closing rubber plate 26 is fixedly arranged on the inner side corresponding position side wall of the outer pipe 22, the inner pipe 18 can move inside the outer pipe 22, the inner pipe 18 is moved rightwards through the inner pipe 18, so that the outer hole 23 and the inner hole 24 are overlapped and the inner hole 24 are coincided with each other, and the two corresponding positions of the two groups of the inner pipe 25 are extruded and the inner side of the inner pipe 25 are forced to be deformed and the corresponding to the inner position of the inner part is pressed.
The annular fixed mounting has the deformation offset 15 that can carry out elastic deformation on the lateral wall of fixed plate 12, the inboard clearance fixed mounting of deformation offset 15 has the connection auxiliary rod 16 that can carry out the adaptation adjustment according to deformation offset 15, the fixed mounting that corresponds the position of connecting auxiliary rod 16 has the glue piece 19 that can atress deformation on the middle baffle 7, fixed mounting has interior movable rod 20 on the lateral wall of the one end of glue piece 19 keeping away from connection auxiliary rod 16, interior movable rod 20 is kept away from glue piece 19 one end slope mirror image fixed mounting has two sets of connecting blocks 21 that are used for connecting the inside wall of inner tube 18, through-hole 17 has been seted up to the position clearance that corresponds transmission tube 3 on the left side lateral wall of middle baffle 7.
The inner tube 18 extends to the inside of the regulating groove 8 on the middle partition 7 through the through hole 17, the side wall of the corresponding position of the connecting block 21 is fixedly arranged on the side wall of the corresponding position of the inner tube 18, the connecting auxiliary rod 16 is driven by the stress of the deformation rubber plate 15 to be matched with the rubber block 19 and the inner movable rod 20, so that the inner tube 18 is driven to move on the inner side of the outer tube 22, and when no stress is applied, the inner hole 24 on the inner tube 18 and the outer hole 23 on the outer tube 22 are correspondingly overlapped.
The inside of the equipment box 1 is provided with a flow regulating device 14 which can conduct the solution inside the equipment box 1 up and down in an interactive way, the flow regulating device 14 consists of two groups of limiting devices, two groups of transmission devices and a driving control device, wherein the two groups of limiting devices are respectively and correspondingly arranged front and back, each limiting device comprises a transmission rail 27 used for fixing and limiting, a filling support plate 30, a transmission belt 31 used for functional transmission and a regulating rod 32, the filling support plate 30 is filled in the inner side area of the transmission rail 27, gaps at the top and the bottom of the filling support plate 30 are reserved for slotted holes used for driving transmission, the transmission belt 31 is sleeved on the outer side wall of the transmission rail 27, and the regulating rod 32 is fixedly arranged on the side wall of the adjacent two groups of transmission belts 31 close to each other in a gap mode.
The transmission device comprises a transmission wheel 28, a transmission shaft 29, and a linked lantern ring 33 and a transmission crawler belt 37, wherein the transmission wheel 28 is arranged in a slotted hole reserved on the limiting device and used for driving transmission, the transmission shaft 29 is fixedly arranged on the inner side walls of the front transmission wheel 28 and the rear transmission wheel 28 which correspond to each other, the lantern ring 33 is fixedly arranged on the rear side wall of the transmission shaft 29, and the transmission crawler belt 37 is movably sleeved on the two lantern rings 33 which are correspondingly arranged up and down.
The driving control device comprises a driving device 35 for driving and a limiting rod 34 for fixing, wherein the output end of the driving device 35 is communicated with the bottom group of transmission shafts 29, the limiting rod 34 is fixedly arranged on the side walls of the front side and the rear side of the driving device 35, and one end of the limiting rod 34, which is far away from the driving device 35, is fixedly arranged on the side wall of the corresponding position of the filling support plate 30.
Two groups of circular arc-shaped catching plates 36 which are convenient for catching and guiding the solution are symmetrically and fixedly arranged on the outer side wall of the mobilizing rod 32 in a clearance way.
Working principle:
when in use, the compressor 4, the refrigerator 5 and the low-temperature cold head 6 are matched with the solution in the equipment box 1 to carry out refrigeration treatment, and then the solution is transmitted to an external corresponding position area through the transmission module, so that the temperature reduction treatment is carried out.
When the equipment is operated, the solution is conducted in an up-down interaction way through the flow regulating device 14, so that the deformed rubber plate 15 in the corresponding area is impacted, the connecting auxiliary rod 16 is driven to indirectly push the inner pipe 18 to move in the outer pipe 22, the inner hole 24 on the inner pipe 18 and the outer hole 23 on the outer pipe 22 are staggered, the transmission pipe 3 forms a closed space, the condensed gas transmitted in the equipment box 1 is transmitted in the closed transmission pipe 3 in an appropriate amount as far as possible, when the deformed rubber plate 15 is reset, the inner pipe 18 moves back, the outer hole 23 on the outer pipe 22 and the inner hole 24 on the inner pipe 18 are overlapped again, and the condensed gas is discharged, so that the effect of condensation treatment of equal amount adaptation on a long-distance area is achieved.
The inner tube 18 is moved back, so that the limiting deformation blocks 25 of two groups of corresponding areas on the inner side of the inner tube 18 are closed, the inner side of the inner tube 18 is forced to form a plurality of groups of closed areas, the situation that condensed gas is lost and unbalanced due to external influence is reduced to the greatest extent, and meanwhile, the equal-quantity condensation treatment can be fully ensured.
Through the inside solution of upper and lower interactive transmission equipment box 1 to make the inside condensation reaction of equipment box 1 can be more abundant, improve the inside condensation treatment's of equipment box 1 effect, further reduce the insufficient condition emergence of condensation supply, improve the condensation effect greatly.
Through the catching plate 36 on the transfer rod 32, when the flow regulating device 14 is operating, the catching plate 36 on the transfer rod 32 can catch and limit the internal solution, when the transfer rod 32 moves to a high point to a low point to transmit, the solution in the catching plate 36 on the transfer rod 32 can be fully ejected to the deformed rubber plate 15 effectively, so that the transmission effect and efficiency of the transmission pipe 3 are improved, and the condensation effect is further improved.
The transmission tube 3 arranged in a sealing manner is similar to the arc-shaped deformation rubber plate 15, when the deformation rubber plate 15 is impacted, the deformation rubber plate 15 is limited by the transmission limiting plate 2, the transmission tube 3 of the outer ring cannot deform with larger force, so that the transmission tube 3 cannot achieve sufficient sealing, the outer ring transmission tube 3 can condense in a shorter distance as far as possible, meanwhile, condensed gas transmitted by the transmission tube 3 can be transmitted to the inner side area of the dense arrangement of the plurality of groups of transmission tubes 3, the condensed gas is limited to the inner side through the outer side transmission tube 3 as far as possible, the condensed gas is gradually overlapped in the inner side area of the plurality of groups of transmission tubes 3 through different inner and outer amplitudes, and accordingly, when the inner side transmission tube 3 performs outer transmission, the condensed gas is subjected to outer transmission along with the inner side transmission tube 3 under the influence of compression force, so that the corresponding position area is subjected to adaptive cold replenishment, and the effect of effective and sufficient condensation is achieved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
- The utility model provides a low temperature refrigerator for MRI, includes the central module that is used for carrying out refrigeration and is used for transmitting cryogenic transmission module, its characterized in that: the transmission module comprises a transmission pipe (3) capable of carrying out intermittent airtight external transmission, and the central module comprises an equipment box (1) for loading a refrigerating solution, a compressor (4) for refrigerating operation, a refrigerator (5) and a cryogenic cold head (6);the transmission module further comprises a transmission limiting plate (2) and a middle partition plate (7) which are used for limiting separation, and a regulating groove (8), a fixed pipe (9), a rubber pipe (10), a fixed plate (12) and a transmission device (13) which are used for transmitting condensed gas, wherein the transmission limiting plate (2) is inlaid on the left side wall of the inner side of the equipment box (1), the middle partition plate (7) is fixedly installed on the left side wall of the transmission limiting plate (2), the regulating groove (8) is formed in the middle partition plate (7), the fixed plate (12) is arranged in the inner side area of the equipment box (1), the fixed pipes (9) are two groups, the two groups of fixed pipes (9) are fixedly installed on the wall surfaces of the corresponding positions of the middle partition plate (7) and the fixed plate (12), the rubber pipe (10) is fixedly installed at the position between the two groups of fixed pipes (9), the transmission device (13) is arranged on the right side of the fixed plate (12), and rubber rods (11) used for fixing and limiting the rubber pipe (10) are fixedly installed between the two groups of fixed pipes (9).
- 2. The cryocooler for MRI as set forth in claim 1 wherein: the transmission device (13) comprises transmission equipment for transmitting condensed gas in the equipment box (1) and regulation equipment for controlling the transmission device to carry out frequency regulation.
- 3. The cryocooler for MRI as set forth in claim 2 wherein: the transmission pipe (3) is arranged on the left side wall surface of the middle partition plate (7) in a gap-sealing mode, the transmission pipe (3) comprises an outer pipe (22) for fixed transmission and an inner pipe (18) for dynamic transmission, the outer pipe (22) is fixedly arranged on the left side wall of the middle partition plate (7), the inner pipe (18) is arranged on the inner side of the outer pipe (22), and an outer hole (23) and an inner hole (24) which can be staggered and interacted are respectively formed in the outer pipe (22) and the inner pipe (18).
- 4. The cryocooler for MRI as set forth in claim 3 wherein: the transmission pipe (3) further comprises a limiting deformation block (25) used for elastic adjustment and a closing rubber plate (26) capable of being subjected to airtight extrusion, the limiting deformation block (25) is discontinuously embedded on the inner side wall of the inner pipe (18), the limiting deformation block (25) is located at the left end of the inner hole (24), the closing rubber plate (26) is composed of an arc-shaped block bent towards the left side and an outer cylindrical rod, the arc-shaped block is fixedly arranged on the inner side wall of the limiting deformation block (25), the cylindrical rod is fixedly arranged on the outer side wall of the limiting deformation block (25), and one end of the closing rubber plate (26) away from the limiting deformation block (25) is fixedly arranged on the inner corresponding position wall surface of the outer pipe (22).
- 5. A cryocooler for MRI as set forth in claim 1 or 3, wherein: the utility model is characterized in that a deformation rubber plate (15) capable of elastically deforming is fixedly arranged on the outer side wall of the fixed plate (12), a connection auxiliary rod (16) capable of being adaptively adjusted according to the deformation rubber plate (15) is fixedly arranged on the inner side gap of the deformation rubber plate (15), a rubber block (19) capable of being stressed and deformed is fixedly arranged on the middle partition plate (7) corresponding to the position of the connection auxiliary rod (16), an inner movable rod (20) is fixedly arranged on the side wall of one end of the rubber block (19) far away from the connection auxiliary rod (16), the utility model discloses a rubber patch is characterized by including interior movable rod (20), rubber patch (19) one end slope mirror image fixed mounting is kept away from has two sets of connecting blocks (21) that are used for connecting inner tube (18) inside wall, through-hole (17) have been seted up in the position clearance that corresponds transmission tube (3) on the left side lateral wall of septum (7), inner tube (18) extend to the inside of the last chute (8) of septum (7) through-hole (17), and the corresponding position lateral wall fixed mounting of connecting block (21) is on the inboard corresponding position lateral wall of inner tube (18).
- 6. The cryocooler for MRI as set forth in claim 1 wherein: the inside of equipment box (1) is provided with can carry out flow regulating device (14) of upper and lower mutual conduction to the inboard solution of equipment box (1), flow regulating device (14) are by two sets of restraining device, two sets of transmission and drive control device, and two sets of restraining device correspond the arrangement around respectively, and restraining device is including being used for fixed restriction's transmission rail (27) and packing extension board (30) and be used for transmission of function's drive belt (31) and transfer pole (32), fills extension board (30) and fills in the inboard region of transmission rail (27), fills the slotted hole that is used for driving transmission is reserved in the top and bottom clearance of extension board (30), and transmission belt (31) cup joint on the outside lateral wall of transmission rail (27), transfer pole (32) clearance fixed mounting is on adjacent two sets of drive belts (31) are close to one side lateral wall each other.
- 7. The cryocooler for MRI as set forth in claim 6 wherein: the transmission device comprises a transmission wheel (28), a transmission shaft (29), a collar (33) and a transmission crawler belt (37), wherein the collar (33) and the transmission crawler belt (37) are in linkage, the transmission wheel (28) is arranged in a reserved slotted hole for driving transmission on the limiting device, the transmission shaft (29) is fixedly arranged on the inner side walls of the front transmission wheel (28) and the rear transmission wheel (28) which are mutually corresponding, the collar (33) is fixedly arranged on the rear end side wall of the transmission shaft (29), and the transmission crawler belt (37) is movably sleeved on the two collar (33) which are correspondingly arranged up and down.
- 8. The cryocooler for MRI as set forth in claim 6 or 7, wherein: the driving control device comprises a driving device (35) for driving and a limiting rod (34) for fixing, wherein the output end of the driving device (35) is communicated with a group of transmission shafts (29) at the bottom, the limiting rod (34) is fixedly arranged on the side walls of the front side and the rear side of the driving device (35), and one end, far away from the driving device (35), of the limiting rod (34) is fixedly arranged on the side wall of the corresponding position of the filling support plate (30).
- 9. The cryocooler for MRI as set forth in claim 6 wherein: two groups of arc-shaped capturing plates (36) which are convenient for capturing and guiding the solution are symmetrically and fixedly arranged on the outer side wall of the mobilizing rod (32) in a clearance mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210077289.1A CN114791177B (en) | 2022-01-24 | 2022-01-24 | Cryocooler for MRI |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210077289.1A CN114791177B (en) | 2022-01-24 | 2022-01-24 | Cryocooler for MRI |
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| CN114791177A CN114791177A (en) | 2022-07-26 |
| CN114791177B true CN114791177B (en) | 2023-07-21 |
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| EP3285032B1 (en) * | 2016-08-18 | 2019-07-24 | Bruker BioSpin AG | Cryostat arrangement and method of operation thereof |
| DE102016218000B3 (en) * | 2016-09-20 | 2017-10-05 | Bruker Biospin Gmbh | Cryostat arrangement with a vacuum container and an object to be cooled, with evacuable cavity |
| GB2566024B (en) * | 2017-08-30 | 2020-08-12 | Siemens Healthcare Ltd | A Fault-Tolerant Cryogenically Cooled System |
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