CN113729682B - Box-type multimode animal self-shielding nuclear magnetic resonance machine - Google Patents
Box-type multimode animal self-shielding nuclear magnetic resonance machine Download PDFInfo
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- CN113729682B CN113729682B CN202010696659.0A CN202010696659A CN113729682B CN 113729682 B CN113729682 B CN 113729682B CN 202010696659 A CN202010696659 A CN 202010696659A CN 113729682 B CN113729682 B CN 113729682B
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- 238000005481 NMR spectroscopy Methods 0.000 title claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims abstract description 152
- 239000006260 foam Substances 0.000 claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 35
- 238000012423 maintenance Methods 0.000 claims description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 22
- 229910052802 copper Inorganic materials 0.000 claims description 22
- 239000010949 copper Substances 0.000 claims description 22
- 239000002937 thermal insulation foam Substances 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 21
- 238000001514 detection method Methods 0.000 description 16
- 238000004321 preservation Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 230000005311 nuclear magnetism Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2503/00—Evaluating a particular growth phase or type of persons or animals
- A61B2503/40—Animals
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Medical Informatics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Radiology & Medical Imaging (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The invention discloses a box-type multimode animal self-shielding nuclear magnetic resonance machine which comprises a shielding shell, a self-shielding magnet structure, a rear cover assembly, a bed body installation structure and a shielding door structure, wherein the self-shielding magnet structure comprises a self-shielding magnet, a magnet waveguide tube, a shielding inner shell, an upper magnetic cover and a lower magnetic cover, and the rear cover assembly comprises a rear cover, a ventilation structure, a wiring terminal, a filter box and a camera; the shielding door structure comprises a shielding door, a door rail beam and a shielding door lifting mechanism for driving the shielding door to lift on the door rail beam. The invention adopts the frame-type self-shielding magnet, the shielding inner shell, the shielding outer shell and the multi-layer conductive heat-insulating foam to achieve the multi-shielding effect, and meanwhile, the middle positions of the upper magnetic cover and the lower magnetic cover and the shielding inner shell are staggered, so that the installation space is reduced on the premise of ensuring the installation stability of the upper magnetic cover and the lower magnetic cover, and the structure is simple and small, and the ventilation effect is good; the shielding door structure adopts the lifting type shielding door driven by the lifting mechanism, so that the occupied area can be greatly saved, and the stable and reliable lifting of the shielding door can be ensured.
Description
Technical Field
The invention relates to animal detection equipment, in particular to a box-type multimode animal self-shielding nuclear magnetic resonance machine.
Background
At present, animal nuclear magnetic detection is generally carried out in a nuclear magnetic shielding detection room of a pet hospital, the conventional nuclear magnetic detection room is large in occupied area, three separation is needed between a doctor operation room and a detection shielding room and between equipment, so that the shielding requirement is complicated, the shielding cost is high, and the occupied area of the pet hospital is small, so that many construction conditions of the shielding room are not established, and the pet hospitals cannot set up nuclear magnetic detection; therefore, a special nuclear magnetic detection device with small occupied area for pets needs to be invented, and the magnet structure for the conventional nuclear magnetic detection chamber has larger occupied area, is not suitable for the small-volume nuclear magnetic detection device, and generally has no self-shielding function;
nuclear magnetic resonance detection apparatuses are usually equipped with auxiliary functional components such as ventilation structures, filtering devices, monitoring facilities, etc., which cannot be directly mounted on a magnetic body, so that a special shielding rear cover is required to be designed to mount the components;
the nuclear magnetic detection equipment needs to be provided with a small and flexible and convenient bed body, and the conventional bed body installation structure for the nuclear magnetic detection chamber is not suitable for the nuclear magnetic detection equipment with small volume or has higher cost;
and the conventional shielding door for the nuclear magnetic detection chamber is a shielding door which moves transversely, has larger occupied area and is not suitable for small-volume nuclear magnetic detection equipment.
Disclosure of Invention
In order to solve the defects and shortcomings in the prior art, the invention provides a self-shielding magnet structure which adopts a box-type frame self-shielding magnet, a shielding inner shell is arranged on the inner side of the self-shielding magnet and is matched with a shielding outer shell and a plurality of layers of conductive heat preservation foam surfaces, so as to achieve a multiple shielding effect, and meanwhile, the upper magnetic cylinder cover, the lower magnetic cylinder cover and the center position of the magnet are designed in an offset manner, so that the space layout is furthest reduced on the premise of ensuring the installation stability and not influencing the magnetic dissipation; the rear cover component integrates the ventilation, filtering, monitoring and other functional components on the rear cover, so that the functional components are convenient to install, the ventilation structure adopts a structure that a ventilation nozzle and a ventilation pipe are matched with a ventilation fan, and the ventilation opening of the ventilation nozzle is aligned to a bed body in the resonance machine, so that the ventilation fan can well ventilate the inside of the resonance machine, and the structure is simple and small, and the ventilation effect is good; the shielding door structure adopts the lifting type shielding door driven by the lifting mechanism, so that the occupied area can be greatly saved, the copper mesh of the door plate is designed on the inner side of the shielding door plate, the shielding effect is guaranteed, meanwhile, the shielding door plate and the copper mesh of the door plate are firmly and reliably installed, and the stable and reliable lifting of the shielding door is guaranteed.
The technical scheme of the invention is as follows: the utility model provides a box multimode animal self-shielding nuclear magnetic resonance machine, includes shielding shell, installs in shielding shell's self-shielding magnet structure, back cover subassembly, bed body mounting structure and installs the shielding door structure in shielding shell front side, self-shielding magnet structure includes self-shielding magnet, installs at the magnet waveguide of self-shielding magnet top, installs at the inside shielding inner shell of self-shielding magnet, installs at the upper magnetic cover at shielding inner shell top, installs the lower magnetic cover in shielding inner shell bottom, the front side of shielding inner shell flushes with the front side of self-shielding magnet, and the rear side of shielding inner shell exposes in the rear side of self-shielding magnet, be equipped with the upper magnetic cover installation circle of cooperation upper magnetic cover in the middle of the top of self-shielding magnet, be equipped with the lower magnetic cover installation circle of cooperation lower magnetic cover in the middle of the bottom of self-shielding magnet, be equipped with first electrically conductive heat preservation foam in the outside of self-shielding magnet and back cover, be equipped with second electrically conductive heat preservation foam between shielding inner shell and the self-shielding magnet, be equipped with third electrically conductive heat preservation foam in the upper magnetic cover installation circle, be equipped with between fourth electrically conductive heat preservation foam in the lower magnetic cover installation circle and fourth electrically conductive heat preservation foam, be equipped with between electrically conductive heat preservation foam in front of the fifth heat preservation foam;
The back cover assembly comprises a back cover, a ventilation structure, a wiring terminal, a filter box and a camera, wherein the ventilation structure is arranged at the bottom of the back cover, the filter box and the camera are arranged at the rear side of the back cover, the ventilation structure comprises a ventilation pipe, a ventilation nozzle, a ventilation fan and a ventilation opening, the ventilation nozzle is fixed at the top of the ventilation pipe, the ventilation fan is arranged below the ventilation pipe, the ventilation opening is arranged at the inner side of the bottom of the back cover and is communicated with the outer side of the bottom of the back cover, the ventilation fan is fixed at the outer side of the bottom of the back cover and is communicated with the inner side of the bottom of the back cover, the ventilation opening is aligned with a bed body in a resonance machine, the ventilation fan is aligned with the bottom of the ventilation pipe, a plurality of filters are arranged in the filter box, the filters are arranged on the back cover through filter plates, the back cover is arranged at the rear side of a shielding inner shell, and the front side of the back cover is connected with the rear side of a self-shielding magnet;
The shielding door structure comprises a shielding door, two door rail beams matched with the shielding door and a shielding door lifting mechanism for driving the shielding door to lift on the two door rail beams, the shielding door comprises a shielding door frame and a shielding door plate arranged on the front side of the shielding door frame, a door plate copper net is arranged on the inner side of the shielding door plate and connected with the shielding door lifting mechanism through a sliding block, the door plate copper net is positioned between the shielding door plate and the shielding door frame, a door plate fixing flanging matched with the shielding door frame is arranged at the top of the shielding door plate, a copper net fixing flanging matched with the door plate is arranged at the top of the door plate copper net, and a front baffle is arranged below the shielding door structure.
The self-shielding magnet structure adopts the box-type frame self-shielding magnet, the shielding inner shell is arranged on the inner side of the self-shielding magnet, the shielding outer shell and the multi-layer conductive heat-insulation foam surface are matched, the multi-shielding effect is achieved, meanwhile, the upper magnetic cylinder cover, the lower magnetic cylinder cover and the center position of the magnet are designed in an offset mode, and the space layout is reduced to the greatest extent on the premise that the installation stability of the self-shielding magnet structure is ensured and the magnetic dissipation is not influenced; the rear cover component integrates the ventilation, filtering, monitoring and other functional components on the rear cover, so that the functional components are convenient to install, the ventilation structure adopts a structure that a ventilation nozzle and a ventilation pipe are matched with a ventilation fan, and the ventilation opening of the ventilation nozzle is aligned to a bed body in the resonance machine, so that the ventilation fan can well ventilate the inside of the resonance machine, and the structure is simple and small, and the ventilation effect is good; the lifting type shielding door driven by the lifting mechanism is adopted in the shielding door structure, the occupied area can be greatly saved, the copper mesh of the door plate is designed on the inner side of the shielding door plate, the shielding effect is guaranteed, meanwhile, the installation of the shielding door plate and the copper mesh of the door plate is firm and reliable, and the lifting stability and reliability of the shielding door are guaranteed.
Preferably, the self-shielding magnet comprises a magnet top plate, a magnet bottom plate and two magnet side plates arranged between the magnet top plate and the magnet bottom plate, wherein the magnet top plate is provided with a waveguide tube mounting hole matched with a magnet waveguide tube, the upper magnetic cover mounting ring is fixed in the middle of the lower side of the magnet top plate, and the lower magnetic cover mounting ring is fixed in the middle of the upper side of the magnet bottom plate; the front frame comprises two door rail beams, an upper baffle plate connected between the tops of the two door rail beams and a lower baffle plate connected between the bottoms of the two door rail beams, and the door rail beams are connected with the front sides of the self-shielding magnets through shielding plates; the shielding inner shell comprises an inner shell top plate, an inner shell bottom plate and two inner shell side plates connected between the inner shell top plate and the inner shell bottom plate, wherein an upper magnetic cover hole matched with an upper magnetic cover is formed in the inner shell top plate, and a lower magnetic cover hole matched with a lower magnetic cover is formed in the inner shell bottom plate; four support columns are arranged on the lower side of the magnet base plate, and sixth conductive heat-insulating foam is arranged on the front side of the shielding plate.
The structure ensures the self-shielding effect, and the upper magnetic cover and the lower magnetic cover are arranged at the middle position of the self-shielding magnet and can be staggered with the middle position of the shielding inner shell, so that the internal ineffective space can be reduced; the firmness of the front frame is ensured, the installation of the shielding door is convenient, and the shielding effect of the front frame is ensured; the shielding effect of the shielding inner shell is ensured, and the installation of the upper magnetic cover and the lower magnetic cover is convenient; the support firmness of the self-shielding magnet is ensured, the height of the self-shielding magnet is ensured, and the self-shielding effect is ensured.
Preferably, the bed body mounting structure comprises an inner shell bottom plate and a bed body which is connected to the inner shell bottom plate in a sliding manner, the bed body is connected to the inner shell bottom plate in a sliding manner through two groups of multi-stage telescopic sliding rail assemblies, a lower magnetic cover hole is formed in the inner shell bottom plate, after the bed body slides in place, the position of the bed body corresponds to the position of the lower magnetic cover hole, and the distance between one side of the bed body and the corresponding side of the inner shell bottom plate is greater than the distance between the other side of the bed body and the other side of the inner shell bottom plate.
The bed body is connected to the inner shell bottom plate in a sliding manner by adopting the multistage telescopic sliding rail assembly, so that the small bed body can be manufactured, the bed body is convenient and stable to enter and exit, and meanwhile, after the bed body slides in place, the middle positions of the bed body and the inner shell bottom plate are staggered, so that the internal ineffective space is reduced, the installation space is reduced on the premise of ensuring the installation stability of the bed body, and the bed body is suitable for small-volume nuclear magnetism detection equipment.
Preferably, each group of multistage telescopic slide rail assembly comprises a double-groove slide rail frame, an upper slide rail and a lower slide rail which are connected to the double-groove slide rail frame in a sliding manner, wherein the upper slide rail is fixed on the bed body, the lower slide rail is fixed on the inner shell bottom plate, the length of the upper slide rail is matched with that of the lower slide rail, and after the bed body slides in place, the upper slide rail and the lower slide rail are limited through a spring limiting pin assembly; the lower sliding rail is fixed on the inner shell bottom plate through a lower fixing beam, the upper sliding rail is fixed on the bed body through an upper fixing beam, the length of the lower fixing beam is matched with that of the double-groove sliding rail frame, the length of the upper fixing beam is smaller than that of the upper sliding rail, and one end of the upper fixing beam is aligned with one end of the upper sliding rail.
The structure further ensures that the telescopic sliding of the bed body is stable and reliable, and simultaneously ensures that the limit of the bed body after the bed body slides in place is stable and reliable; the connection between the bed body and the multi-stage telescopic sliding rail assembly and the connection between the multi-stage telescopic sliding rail assembly and the inner shell bottom plate are ensured to be more stable and reliable.
Preferably, the lower fixing beam is fixed in the middle of the bottom plate of the inner shell, after the bed body slides in place, one end of the upper fixing beam, one end of the double-groove sliding rail frame and one end of the lower fixing beam are flush, and the other ends of the double-groove sliding rail frame and the lower fixing beam are also flush; the spring limiting pin assembly comprises a limiting pin arranged at one end of the upper sliding rail, a limiting shifting block arranged on the limiting pin and a reset spring, wherein a limiting pin hole matched with the limiting pin is formed in the upper part of one end of the lower sliding rail, and a shifting block mounting shaft matched with the limiting shifting block is arranged on the limiting pin; the bed body is fixed with the upper fixing beam through a bed leg, and a fixing groove matched with the upper fixing beam is formed in the bed leg; one end of the lower fixing beam penetrates out of the rear side of the magnet bottom plate, and a lower fixing beam hole matched with the lower fixing beam is formed in the inner shell bottom plate.
The structure is convenient for the staggered distribution of the position of the bed body after sliding in place and the middle position of the bottom plate of the inner shell; further ensuring the limit stability and reliability after the bed body slides in place; further ensure firm connection between the bed body and the multistage telescopic slide rail component.
Preferably, the bottom of the ventilation nozzle is provided with a ventilation pipe installation part matched with a ventilation pipe, the bottom of the ventilation pipe installation part is provided with a ventilation pipe installation groove, one side of the ventilation pipe installation part is provided with a locking bolt hole, and the top of the ventilation pipe is inserted into the ventilation pipe installation groove and locked by a locking bolt.
The structure ensures firm and reliable assembly between the ventilation pipe and the ventilation nozzle, and further ensures ventilation effect.
Preferably, the ventilation opening is flat, and an air guide step matched with the ventilation opening is arranged in the ventilation opening; the bottom of the ventilation pipe is arranged on the inner side of the bottom of the rear cover through a mounting sheet, and the ventilation fan is fixed on the outer side of the bottom of the rear cover through a plurality of fixing screws; the ventilation opening of the ventilation nozzle protrudes forwards to form a wind guide protrusion, and two sides of the wind guide protrusion are obliquely arranged; the ventilation fan is a direct current axial flow fan, and the width of the ventilation opening is larger than the height of the ventilation opening by four times.
The structure further ensures the ventilation effect of the ventilation nozzle; the installation convenience and the firmness of the ventilation pipe and the ventilation fan are ensured; further ensuring the ventilation effect of the ventilation structure.
Preferably, a filter protection cover matched with the filter is arranged on the filter plate, and the filter protection cover is divided into a protection front cover fixed on the front side of the filter plate and a protection rear cover fixed on the rear side of the filter plate; the rear side of the rear cover is also provided with a plurality of maintenance doors, each maintenance door comprises two large maintenance doors and one small maintenance door, the width of each large maintenance door is the same as that of each small maintenance door, the height of each large maintenance door is larger than that of each small maintenance door, and each small maintenance door is positioned above the filter box; the camera is arranged on the upper side of the middle large maintenance door through a camera bracket; the inner wall of the rear cover is provided with seventh conductive heat-insulating foam, the front side of the seventh conductive heat-insulating foam is provided with a conductive heat-insulating foam flanging, the inner surface of the rear side of the rear cover is provided with eighth conductive heat-insulating foam, and the outer surface of the rear side of the rear cover is provided with ninth conductive heat-insulating foam.
The structure not only ensures the installation firmness of the filter, but also can well protect the filter; the maintenance and the service of the internal structure are convenient; the mounting firmness of the camera is ensured; ensuring the stability of the whole structure.
Preferably, the shielding door lifting mechanism comprises two screw rod modules which synchronously act and two driving motors which drive the screw rod modules to act, the driving motors drive the screw rod modules to act so as to drive the sliding blocks to slide up and down on the screw rod modules, the screw rod modules are positioned on the outer sides of the door rail beams, and each door rail beam corresponds to one screw rod module; the sliding block is connected with the shielding door frame through a sliding block connecting plate, a connecting plate clamping piece matched with the sliding block connecting plate is arranged on one side of the shielding door frame, the connecting plate clamping piece is clamped into one side of the shielding door frame, and one end of the sliding block connecting plate is clamped into the connecting plate clamping piece.
The structure further ensures that the lifting of the shielding door is stable and reliable; the connection between the sliding block and the shielding door frame is firm and reliable, and the lifting stability and reliability of the shielding door are further ensured.
Preferably, the shielding portal comprises an upper section bar beam, a lower section bar beam and a plurality of section bar vertical beams connected between the upper section bar beam and the lower section bar beam, wherein section bar vertical beams are arranged between two ends of the upper section bar beam and the lower section bar beam, and reinforcing blocks are arranged at the joint of the upper section bar beam and the section bar vertical beams and the joint of the lower section bar beam and the section bar vertical beams; the number of the profile vertical beams is 4, and the distance between the two profile vertical beams in the middle is larger than the distance between the profile vertical beam in the middle and the profile vertical beam on the corresponding side; the tops of the two door rail beams are connected through an upper baffle, an upper conductive heat-insulating foam strip is arranged on the inner side of the upper baffle, the bottoms of the two door rail beams are connected through a lower baffle, and a lower conductive heat-insulating foam strip is arranged on the inner side of the lower baffle; the driving motor is arranged at the bottom of the screw rod module, and a plurality of screw rod module mounting plates are arranged on the back surface of the screw rod module.
The structure ensures the firm and reliable structure of the shielding door frame, thereby ensuring the integral strength of the shielding door; further ensuring the structural firmness of the shielding door; the firm and reliable connection of the door rail beams is ensured, so that the stable and reliable lifting of the shielding door is further ensured; the screw rod module can be firmly and reliably installed.
The self-shielding magnet structure adopts the box-type frame self-shielding magnet, the shielding inner shell is arranged on the inner side of the self-shielding magnet, the shielding outer shell and the multi-layer conductive heat-insulation foam surface are matched, the multi-shielding effect is achieved, meanwhile, the upper magnetic cylinder cover, the lower magnetic cylinder cover and the center position of the magnet are designed in an offset mode, and the space layout is reduced to the greatest extent on the premise that the installation stability of the self-shielding magnet structure is ensured and the magnetic dissipation is not influenced; the rear cover component integrates the ventilation, filtering, monitoring and other functional components on the rear cover, so that the functional components are convenient to install, the ventilation structure adopts a structure that a ventilation nozzle and a ventilation pipe are matched with a ventilation fan, and the ventilation opening of the ventilation nozzle is aligned to a bed body in the resonance machine, so that the ventilation fan can well ventilate the inside of the resonance machine, and the structure is simple and small, and the ventilation effect is good; the lifting type shielding door driven by the lifting mechanism is adopted in the shielding door structure, the occupied area can be greatly saved, the copper mesh of the door plate is designed on the inner side of the shielding door plate, the shielding effect is guaranteed, meanwhile, the installation of the shielding door plate and the copper mesh of the door plate is firm and reliable, and the lifting stability and reliability of the shielding door are guaranteed.
Drawings
FIG. 1 is a schematic view of one angle of the present invention;
FIG. 2 is a schematic view of another angle of the present invention;
FIG. 3 is a schematic illustration of the self-shielding magnet structure of the present invention with the upper and lower magnetic covers removed;
FIG. 4 is an exploded view of the self-shielding structure of the present invention;
FIG. 5 is a schematic view of one angle of the bed body mounting structure according to the present invention;
FIG. 6 is a schematic view of another angle of the bed mounting structure according to the present invention;
FIG. 7 is an enlarged schematic view of the portion I in FIG. 5;
FIG. 8 is a schematic view of the rear housing assembly of the present invention;
FIG. 9 is an exploded view of the rear housing assembly of the present invention;
FIG. 10 is a schematic view of the structure of the ventilation nozzle in the present invention;
FIG. 11 is a schematic view of one angle of the shield door structure according to the present invention;
FIG. 12 is a schematic view of another angle of the shield door structure of the present invention;
The magnetic body top plate, 2, the magnetic body bottom plate, 3, the magnetic body side plate, 4, the rear cover, 5, the magnetic body waveguide tube, 6, the waveguide tube mounting hole, 7, the upper magnetic cover, 8, the lower magnetic cover, 9, the upper magnetic cover mounting ring, 10, the lower magnetic cover mounting ring, 11, the first conductive thermal insulation foam, 12, the second conductive thermal insulation foam, 13, the third conductive thermal insulation foam, 14, the fourth conductive thermal insulation foam, 15, the fifth conductive thermal insulation foam, 16, the sixth conductive thermal insulation foam, 17, the door rail beam, 18, the upper baffle plate, 19, the lower baffle plate, 20, the shielding plate, 21, the inner shell top plate, 22, the inner shell bottom plate, 23, the inner shell side plate, 24, the inner shell backboard, 25, the upper magnetic cover hole, 26, the lower magnetic cover hole, 27, the reinforcing block, 28, the lower fixing beam hole, 29, the support column, 30, the shielding shell, 31, the bed body, 32, the front baffle plate, 33, the shielding door structure, 34, upper rail, 36, lower rail, 37, upper fixed beam, 38, lower fixed beam, 39, foot, 40, fixed slot, 41, stop pin, 42, stop block, 43, return spring, 44, stop pin hole, 45, block mounting shaft, 46, ventilation structure, 47, terminal block, 48, filter box, 49, camera, 50, filter, 51, filter plate, 52, filter shield, 53, protective front cover, 54, protective rear cover, 55, ventilation tube, 56, ventilation mouth, 57, ventilation fan, 58, ventilation opening, 59, ventilation tube mounting portion, 60, ventilation tube mounting slot, 61, locking bolt hole, 62, air guiding step, 63, mounting tab, 64, air guiding protrusion, 65, seventh conductive heat insulating foam, 66, eighth conductive heat insulating foam, 67, ninth conductive heat insulating foam, 68, conductive heat insulating foam flanging, 69, large maintenance door, 70. the door comprises a small maintenance door, 71, a camera bracket, 72, a shielding door plate, 73, a shielding door frame, 74, a screw rod module, 75, a driving motor, 76, a sliding block, 77, a sliding block connecting plate, 78, a connecting plate clamping piece, 79, a door plate fixing flanging, 80, a copper net fixing flanging, 81, a screw rod module mounting plate, 82, an upper section bar cross beam, 83, a lower section bar cross beam, 84, a section bar vertical beam, 85, an upper conductive thermal insulation foam strip, 86, a lower conductive thermal insulation foam strip and 87, and a door plate copper net.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, without limiting the scope of the invention.
As shown in fig. 1 and 2, a box-type multimode animal self-shielding nuclear magnetic resonance machine comprises a shielding shell 30, a self-shielding magnet structure installed in the shielding shell 30, a rear cover assembly, a bed body installation structure and a shielding door structure 33 installed at the front side of the shielding shell, wherein a front baffle plate 32 is arranged below the shielding door structure.
As shown in fig. 3 and 4, the self-shielding magnet structure comprises a self-shielding magnet, a magnet waveguide 5 installed at the top of the self-shielding magnet, a shielding inner shell installed inside the self-shielding magnet, an upper magnetic cover 7 installed at the top of the shielding inner shell, a lower magnetic cover 8 installed at the bottom of the shielding inner shell, a rear cover 4 installed at the rear side of the self-shielding magnet and a front frame installed at the front side of the self-shielding magnet, the front side of the shielding inner shell is flush with the front side of the self-shielding magnet, the rear side of the shielding inner shell is exposed at the rear side of the self-shielding magnet, the rear cover 4 covers the rear side of the shielding inner shell, the front side of the rear cover 4 is connected with the rear side of the self-shielding magnet, an upper magnetic cover mounting ring 9 matched with the upper magnetic cover 7 is arranged in the middle of the top of the self-shielding magnet, a lower magnetic cover mounting ring 10 matched with the lower magnetic cover 8 is arranged in the middle of the bottom of the self-shielding magnet, a first conductive foam 11 is arranged outside the self-shielding magnet and the rear cover 4, a second conductive foam 12 is arranged between the shielding inner shell and the self-shielding magnet, a third conductive foam 13 is arranged between the upper magnetic cover 7 and the upper magnetic cover mounting ring 9, a fifth conductive foam is arranged between the lower magnetic cover 8 and the fourth conductive foam mounting ring and the fifth conductive foam 15 is arranged between the first conductive foam and the fifth conductive foam mounting ring and the magnetic foam 15. The self-shielding magnet comprises a magnet top plate 1, a magnet bottom plate 2 and two magnet side plates 3 arranged between the magnet top plate 1 and the magnet bottom plate 2, wherein waveguide tube mounting holes 6 matched with a magnet waveguide tube 5 are formed in the magnet top plate 1, an upper magnetic cover mounting ring 9 is fixed in the middle of the lower side of the magnet top plate 1, and a lower magnetic cover mounting ring 10 is fixed in the middle of the upper side of the magnet bottom plate 2. The front frame comprises two door rail beams 17, an upper baffle 18 connected between the tops of the two door rail beams 17 and a lower baffle 19 connected between the bottoms of the two door rail beams 17, and the door rail beams 17 are connected with the front sides of the self-shielding magnets through shielding plates 20. The shield inner shell comprises an inner shell top plate 21, an inner shell bottom plate 22, an inner shell back plate 24 and two inner shell side plates 23, wherein the inner shell back plate 24 is connected between the inner shell top plate 21 and the inner shell bottom plate 22, an upper magnetic cover hole 25 matched with the upper magnetic cover 7 is formed in the inner shell top plate 21, and a lower magnetic cover hole 26 matched with the lower magnetic cover 8 is formed in the inner shell bottom plate 22. The upper side of the magnet bottom plate 2 is provided with a lower fixing beam 38 matched with the bed body, one end of the lower fixing beam 38 penetrates out of the rear side of the magnet bottom plate 2, and the inner shell bottom plate 22 is provided with a lower fixing beam hole 28 matched with the lower fixing beam 38. Four support columns 29 are arranged on the lower side of the magnet base plate 2, and a sixth conductive heat-insulating foam 16 is arranged on the front side of the shielding plate 20.
As shown in fig. 5 to 7, the bed body mounting structure includes a bed body 31 slidably connected to the inner shell bottom plate 22, the bed body 31 is slidably connected to the inner shell bottom plate 22 through two sets of multi-stage telescopic sliding rail assemblies, after the bed body 31 is slid in place, the position of the bed body 31 corresponds to the position of the lower magnetic cover hole 26, and the distance between one side of the bed body 31 and the corresponding side of the inner shell bottom plate 22 is greater than the distance between the other side of the bed body 31 and the other side of the inner shell bottom plate 22. Each group of multistage telescopic slide rail assembly comprises a double-groove slide rail frame 34, an upper slide rail 35 and a lower slide rail 36 which are connected onto the double-groove slide rail frame 34 in a sliding manner, the upper slide rail 35 is fixed onto the bed body 31, the lower slide rail 36 is fixed onto the inner shell bottom plate 22, the length of the upper slide rail 35 is matched with the length of the lower slide rail 36, and after the bed body 31 slides in place, the upper slide rail 35 and the lower slide rail 36 are limited by a spring limiting pin assembly. The lower slide rail 36 is fixed on the inner shell bottom plate 22 through a lower fixing beam 38, the upper slide rail 35 is fixed on the bed body 31 through an upper fixing beam 37, the length of the lower fixing beam 38 is matched with that of the double-groove slide rail frame 34, the length of the upper fixing beam 37 is smaller than that of the upper slide rail 35, and one end of the upper fixing beam 37 is aligned with one end of the upper slide rail 35. The lower fixing beam 38 is fixed to the middle of the inner case bottom plate 22, and after the bed body 31 is slid in place, one end of the upper fixing beam 37, one end of the double-groove slide rail frame 34 and one end of the lower fixing beam 38 are flush, and the other ends of the double-groove slide rail frame 34 and the lower fixing beam 38 are also flush. The spring limiting pin assembly comprises a limiting pin 41 arranged at one end of the upper sliding rail 35, a limiting shifting block 42 arranged on the limiting pin 41 and a reset spring 43, wherein a limiting pin hole 44 matched with the limiting pin 41 is formed in the upper portion of one end of the lower sliding rail 36, and a shifting block mounting shaft 45 matched with the limiting shifting block 42 is arranged on the limiting pin 41. The bed body 31 is fixed with the upper fixing beam 37 through the bed leg 39, and the bed leg 39 is provided with a fixing groove 40 matched with the upper fixing beam 37.
As shown in fig. 8 to 10, the rear cover assembly includes the rear cover 4, the ventilation structure 46 and the connection terminal 47 mounted at the bottom of the rear cover 4, and the filter box 48 and the camera 49 mounted at the rear side of the rear cover 4, the ventilation structure 46 includes the ventilation pipe 55, the ventilation nozzle 56 fixed at the top of the ventilation pipe 55, the ventilation fan 57 mounted below the ventilation pipe 55, and the ventilation opening 58 located at the top of the ventilation nozzle 56, the ventilation pipe 55 and the ventilation nozzle 56 are mounted at the bottom inner side of the rear cover 4 and communicate with the bottom outer side of the rear cover 4, the ventilation fan 57 is fixed at the bottom outer side of the rear cover 4 and communicate with the bottom inner side of the rear cover 4, the ventilation opening 58 is aligned with the bed body 31, the ventilation fan 57 is aligned with the bottom of the ventilation pipe 55, the filter box 48 is internally mounted with the plurality of filters 50, and the filters 50 are mounted on the rear cover 4 through the filter plates 51. The bottom of the ventilation nozzle 56 is provided with a ventilation pipe installation part 59 matched with the ventilation pipe 55, the bottom of the ventilation pipe installation part 59 is provided with a ventilation pipe installation groove 60, one side of the ventilation pipe installation part 59 is provided with a locking bolt hole 61, and the top of the ventilation pipe 55 is inserted into the ventilation pipe installation groove 60 and locked by the locking bolt. The vent 58 is flat, and an air guiding step 62 matching the vent 58 is provided inside the vent nozzle 56. The bottom of the ventilating duct 55 is mounted inside the bottom of the rear cover 4 by a mounting plate 63, and the ventilating fan 57 is fixed outside the bottom of the rear cover 4 by a plurality of fixing screws. The ventilation opening of the ventilation nozzle 56 is protruded forward to form a wind guiding protrusion 64, and two sides of the wind guiding protrusion 64 are arranged in an inclined manner. The ventilation fan 57 is a direct-current axial-flow fan, and the width of the ventilation opening 58 is greater than four times the height of the ventilation opening 58. The filter plate 51 is provided with a filter cover 52 for the filter 50, and the filter cover 52 is divided into a protective front cover 53 fixed to the front side of the filter plate 51 and a protective rear cover 54 fixed to the rear side of the filter plate 51. The rear side of the rear cover 4 is further provided with three maintenance doors, each of which includes two large maintenance doors 69 and one small maintenance door 70, the width of the large maintenance door 69 is the same as that of the small maintenance door 70, the height of the large maintenance door 69 is greater than that of the small maintenance door 70, and the small maintenance door 70 is located above the filter box 48. The camera 49 is mounted on the upper side of the middle large maintenance door by a camera bracket 71. The inner wall of the back cover 4 is provided with first conductive heat-insulating foam 65, the front side of the first conductive heat-insulating foam 65 is provided with conductive heat-insulating foam flanging 68, the inner surface of the back side of the back cover 4 is provided with second conductive heat-insulating foam 66, and the outer surface of the back side of the back cover 4 is provided with third conductive heat-insulating foam 67.
As shown in fig. 11 and 12, the shielding door structure 33 includes a shielding door, two door rail beams 17 matching with the shielding door, and a shielding door lifting mechanism driving the shielding door to lift on the two door rail beams 17, the shielding door includes a shielding door frame 73 and a shielding door plate 72 installed on the front surface of the shielding door frame 73, a door plate copper net 87 is arranged on the inner side of the shielding door plate 72, the shielding door frame 73 is connected with the shielding door lifting mechanism through a sliding block 76, the door plate copper net 87 is located between the shielding door plate 72 and the shielding door frame 73, a door plate fixing flange 79 matching with the shielding door frame 73 is arranged on the top of the shielding door plate 72, and a copper net fixing flange 80 matching with the door plate fixing flange 79 is arranged on the top of the door plate copper net 87. The shielding door lifting mechanism comprises two screw rod modules 74 which synchronously act and two driving motors 75 which drive the screw rod modules 74 to act, the driving motors 75 drive the screw rod modules 74 to act so as to drive the sliding blocks 76 to slide up and down on the screw rod modules 74, the screw rod modules 74 are positioned on the outer sides of the door rail beams 17, and each door rail beam corresponds to one screw rod module. The slide block 76 is connected with the shielding door frame 73 through a slide block connecting plate 77, one side of the shielding door frame 73 is provided with a connecting plate clamping piece 78 matched with the slide block connecting plate 77, the connecting plate clamping piece 78 is clamped into one side of the shielding door frame 73, and one end of the slide block connecting plate 77 is clamped into the connecting plate clamping piece 78. The shielding portal 73 comprises an upper section bar beam 82, a lower section bar beam 83 and 4 section bar vertical beams 84 connected between the upper section bar beam 82 and the lower section bar beam 83, wherein section bar vertical beams 84 are arranged between two ends of the upper section bar beam 82 and the lower section bar beam 83, and reinforcing blocks 27 are arranged at the joint of the upper section bar beam 82 and the section bar vertical beams 84 and the joint of the lower section bar beam 83 and the section bar vertical beams 84. The distance between the two middle section bar vertical beams is larger than the distance between the middle section bar vertical beam and the section bar vertical beam on the corresponding side edge. The tops of the two door rail beams are connected through an upper baffle plate 18, an upper conductive heat insulation foam strip 85 is arranged on the inner side of the upper baffle plate 18, the bottoms of the two door rail beams are connected through a lower baffle plate 19, and a lower conductive heat insulation foam strip 86 is arranged on the inner side of the lower baffle plate 19. The driving motor 75 is mounted at the bottom of the screw module 74, and a plurality of screw module mounting plates 81 are provided on the back surface of the screw module 74.
The positions of the upper magnetic cover and the lower magnetic cover in the self-shielding magnet structure correspond to the middle position of the self-shielding magnet and deviate from the middle position of the shielding inner shell to a certain extent, so that the magnetic field effect generated by the self-shielding magnet is ensured, and meanwhile, the spaces at the two sides are not symmetrical to each other, so that the space at the side without a larger space is reduced to the minimum as much as possible, the internal ineffective space is reduced, and the volume of the equipment is further reduced.
When the bed body is used, after the limiting pin is pulled out through the limiting shifting block, the bed body is pulled, generally, after the upper sliding rail is completely pulled out, the double-groove sliding rail frame is pulled out relative to the lower sliding rail, after the double-groove sliding rail frame is completely pulled out, a pet to be detected is placed on the bed body, then the bed body is pushed, the upper sliding rail slides into the double-groove sliding rail frame, the double-groove sliding rail frame is pushed into the double-groove sliding rail frame in a sliding manner relative to the lower sliding rail, and after the bed body slides into place, the limiting shifting block shifts the limiting pin to be clamped into the limiting pin hole of the lower sliding rail, so that the bed body is ensured to be limited stably and reliably.
The repeated sliding of the bed body in place means that the bed body is pushed into place, and after the bed body slides in place, the positions of the bed body, the upper magnetic cover and the lower magnetic cover deviate from the middle position of the shielding inner shell to a certain extent, so that the spaces on two sides are not symmetrical with each other, the space on the side which does not need a larger space can be reduced to the minimum as much as possible, the internal ineffective space is reduced, and the volume of the equipment is further reduced.
In the process of pulling out the bed body, the upper sliding rail is pulled out relative to the double-groove sliding rail frame or the double-groove sliding rail frame is pulled out relative to the lower sliding rail without fixed sequence; in the pushing process of the bed body, the upper sliding rail is pushed in relative to the double-groove sliding rail frame or the double-groove sliding rail frame is pushed in relative to the lower sliding rail, and the fixed sequence is not available.
The multistage telescopic slide rail component and the spring limiting pin component are conventional components purchased in the market, and the specific structure and the action principle are conventional means, so that detailed description is omitted.
When the ventilating structure is used, the ventilating fan is started, and the ventilating fan ventilates the inside of the resonance machine through the ventilating pipe and the ventilating nozzle.
The ventilating fan is a conventional part purchased in the market, and the specific structure and the action principle are conventional means, so that details are not described.
When the shielding door structure is used, when a door needs to be opened, the door opening switch is pressed down, the two driving motors synchronously act, and the two screw rod modules are driven to synchronously act so as to drive the shielding door to slide upwards on the lifting guide rail; when the door needs to be closed, the door closing switch is pressed down, the two driving motors synchronously act, the two screw rod modules are driven to synchronously act, and the shielding door is driven to slide downwards on the lifting guide rail.
The screw rod modules are conventional components purchased in the market, the synchronous action of the two screw rod modules can be realized by controlling the synchronous action of the driving motor, and the specific structure and action principle are conventional means, so that detailed description is omitted.
The self-shielding magnet structure adopts the box-type frame self-shielding magnet, the shielding inner shell is arranged on the inner side of the self-shielding magnet, the shielding outer shell and the multi-layer conductive heat-insulation foam surface are matched, the multi-shielding effect is achieved, meanwhile, the upper magnetic cylinder cover, the lower magnetic cylinder cover and the center position of the magnet are designed in an offset mode, and the space layout is reduced to the greatest extent on the premise that the installation stability of the self-shielding magnet structure is ensured and the magnetic dissipation is not influenced; the rear cover component integrates the ventilation, filtering, monitoring and other functional components on the rear cover, so that the functional components are convenient to install, the ventilation structure adopts a structure that a ventilation nozzle and a ventilation pipe are matched with a ventilation fan, and the ventilation opening of the ventilation nozzle is aligned to a bed body in the resonance machine, so that the ventilation fan can well ventilate the inside of the resonance machine, and the structure is simple and small, and the ventilation effect is good; the lifting type shielding door driven by the lifting mechanism is adopted in the shielding door structure, the occupied area can be greatly saved, the copper mesh of the door plate is designed on the inner side of the shielding door plate, the shielding effect is guaranteed, meanwhile, the installation of the shielding door plate and the copper mesh of the door plate is firm and reliable, and the lifting stability and reliability of the shielding door are guaranteed.
Claims (10)
1. A box multimode animal self-shielding nuclear magnetic resonance machine, characterized in that: the shielding door structure comprises a self-shielding magnet, a magnet waveguide tube, a shielding inner shell, an upper magnetic cover and a lower magnetic cover, wherein the magnet waveguide tube is arranged at the top of the self-shielding magnet, the shielding inner shell is arranged inside the self-shielding magnet, the upper magnetic cover is arranged at the top of the shielding inner shell, the lower magnetic cover is arranged at the bottom of the shielding inner shell, the front side of the shielding inner shell is flush with the front side of the self-shielding magnet, the rear side of the shielding inner shell is exposed out of the rear side of the self-shielding magnet, an upper magnetic cover mounting ring matched with an upper magnetic cover is arranged in the middle of the top of the self-shielding magnet, a lower magnetic cover mounting ring matched with a lower magnetic cover is arranged in the middle of the bottom of the self-shielding magnet, a first conductive heat insulation foam is arranged outside the self-shielding magnet and the rear cover, a second conductive heat insulation foam is arranged between the shielding inner shell and the self-shielding magnet, a third conductive heat insulation foam is arranged between the upper magnetic cover and the upper magnetic cover mounting ring, a fourth conductive heat insulation foam is arranged between the lower magnetic cover and the lower magnetic cover mounting ring, and a fifth conductive heat insulation foam is arranged between the self-shielding magnet and the front heat insulation frame;
The back cover assembly comprises a back cover, a ventilation structure, a wiring terminal, a filter box and a camera, wherein the ventilation structure is arranged at the bottom of the back cover, the filter box and the camera are arranged at the rear side of the back cover, the ventilation structure comprises a ventilation pipe, a ventilation nozzle, a ventilation fan and a ventilation opening, the ventilation nozzle is fixed at the top of the ventilation pipe, the ventilation fan is arranged below the ventilation pipe, the ventilation opening is arranged at the inner side of the bottom of the back cover and is communicated with the outer side of the bottom of the back cover, the ventilation fan is fixed at the outer side of the bottom of the back cover and is communicated with the inner side of the bottom of the back cover, the ventilation opening is aligned with a bed body in a resonance machine, the ventilation fan is aligned with the bottom of the ventilation pipe, a plurality of filters are arranged in the filter box, the filters are arranged on the back cover through filter plates, the back cover is arranged at the rear side of a shielding inner shell, and the front side of the back cover is connected with the rear side of a self-shielding magnet;
The shielding door structure comprises a shielding door, two door rail beams matched with the shielding door and a shielding door lifting mechanism for driving the shielding door to lift on the two door rail beams, the shielding door comprises a shielding door frame and a shielding door plate arranged on the front side of the shielding door frame, a door plate copper net is arranged on the inner side of the shielding door plate and connected with the shielding door lifting mechanism through a sliding block, the door plate copper net is positioned between the shielding door plate and the shielding door frame, a door plate fixing flanging matched with the shielding door frame is arranged at the top of the shielding door plate, a copper net fixing flanging matched with the door plate is arranged at the top of the door plate copper net, and a front baffle is arranged below the shielding door structure.
2. The box-type multimode animal self-shielding nuclear magnetic resonance machine of claim 1, wherein: the self-shielding magnet comprises a magnet top plate, a magnet bottom plate and two magnet side plates arranged between the magnet top plate and the magnet bottom plate, wherein waveguide tube mounting holes matched with a magnet waveguide tube are formed in the magnet top plate, the upper magnetic cover mounting ring is fixed in the middle of the lower side of the magnet top plate, and the lower magnetic cover mounting ring is fixed in the middle of the upper side of the magnet bottom plate; the door rail beam is connected with the front side of the self-shielding magnet through a shielding plate; the shielding inner shell comprises an inner shell top plate, an inner shell bottom plate, an inner shell back plate and two inner shell side plates, wherein the inner shell back plate is connected between the inner shell top plate and the inner shell bottom plate, an upper magnetic cover hole matched with an upper magnetic cover is formed in the inner shell top plate, a lower magnetic cover hole matched with a lower magnetic cover is formed in the inner shell bottom plate, four support columns are arranged on the lower side of the magnet bottom plate, and a sixth conductive heat insulation foam is arranged on the front side of the shielding plate.
3. The box-type multimode animal self-shielding nuclear magnetic resonance machine according to claim 2, wherein: the bed body mounting structure comprises a bed body which is connected to the inner shell bottom plate in a sliding manner, the bed body is connected to the inner shell bottom plate in a sliding manner through two groups of multi-stage telescopic sliding rail assemblies, after the bed body slides in place, the position of the bed body corresponds to the position of the lower magnetic cover hole, and the distance between one side of the bed body and the corresponding side of the inner shell bottom plate is larger than the distance between the other side of the bed body and the other side of the inner shell bottom plate.
4. A box multimode animal self-shielding nmr machine according to claim 3, wherein: each group of multistage telescopic slide rail assembly comprises a double-groove slide rail frame, an upper slide rail and a lower slide rail which are connected to the double-groove slide rail frame in a sliding manner, wherein the upper slide rail is fixed on the bed body, the lower slide rail is fixed on the inner shell bottom plate, the length of the upper slide rail is matched with that of the lower slide rail, and after the bed body slides in place, the upper slide rail and the lower slide rail are limited through a spring limiting pin assembly; the lower sliding rail is fixed on the inner shell bottom plate through a lower fixing beam, the upper sliding rail is fixed on the bed body through an upper fixing beam, the length of the lower fixing beam is matched with that of the double-groove sliding rail frame, the length of the upper fixing beam is smaller than that of the upper sliding rail, and one end of the upper fixing beam is aligned with one end of the upper sliding rail.
5. The box-type multimode animal self-shielding nuclear magnetic resonance machine of claim 4, wherein: the lower fixing beam is fixed in the middle of the bottom plate of the inner shell, after the bed body slides in place, one end of the upper fixing beam, one end of the double-groove sliding rail frame and one end of the lower fixing beam are flush, and the other ends of the double-groove sliding rail frame and the lower fixing beam are also flush; the spring limiting pin assembly comprises a limiting pin arranged at one end of the upper sliding rail, a limiting shifting block arranged on the limiting pin and a reset spring, wherein a limiting pin hole matched with the limiting pin is formed in the upper part of one end of the lower sliding rail, and a shifting block mounting shaft matched with the limiting shifting block is arranged on the limiting pin; the bed body is fixed with the upper fixing beam through a bed leg, and a fixing groove matched with the upper fixing beam is formed in the bed leg; one end of the lower fixing beam penetrates out of the rear side of the magnet bottom plate, and a lower fixing beam hole matched with the lower fixing beam is formed in the inner shell bottom plate.
6. The box-type multimode animal self-shielding nuclear magnetic resonance machine of claim 1, wherein: the bottom of ventilation mouth is equipped with the ventilation pipe installation department of cooperation ventilation pipe, the bottom of ventilation pipe installation department is equipped with the ventilation pipe mounting groove, and one side of ventilation pipe installation department is equipped with the locking bolt hole, the top of ventilation pipe inserts in the ventilation pipe mounting groove through locking bolt locking.
7. The box-type multimode animal self-shielding nuclear magnetic resonance machine of claim 6, wherein: the ventilation opening is flat, and an air guide step matched with the ventilation opening is arranged in the ventilation opening; the bottom of the ventilation pipe is arranged on the inner side of the bottom of the rear cover through a mounting sheet, and the ventilation fan is fixed on the outer side of the bottom of the rear cover through a plurality of fixing screws; the ventilation opening of the ventilation nozzle protrudes forwards to form a wind guide protrusion, and two sides of the wind guide protrusion are obliquely arranged; the ventilation fan is a direct current axial flow fan, and the width of the ventilation opening is larger than the height of the ventilation opening by four times.
8. The box-type multimode animal self-shielding nuclear magnetic resonance machine of claim 1, wherein: the filter plate is provided with a filter protective cover matched with a filter, and the filter protective cover is divided into a protective front cover fixed on the front side of the filter plate and a protective rear cover fixed on the rear side of the filter plate; the rear side of the rear cover is also provided with a plurality of maintenance doors, each maintenance door comprises two large maintenance doors and one small maintenance door, the width of each large maintenance door is the same as that of each small maintenance door, the height of each large maintenance door is larger than that of each small maintenance door, and each small maintenance door is positioned above the filter box; the camera is arranged on the upper side of the middle large maintenance door through a camera bracket; the inner wall of the rear cover is provided with seventh conductive heat-insulating foam, the front side of the seventh conductive heat-insulating foam is provided with a conductive heat-insulating foam flanging, the inner surface of the rear side of the rear cover is provided with eighth conductive heat-insulating foam, and the outer surface of the rear side of the rear cover is provided with ninth conductive heat-insulating foam.
9. The box-type multimode animal self-shielding nuclear magnetic resonance machine of claim 1, wherein: the shielding door lifting mechanism comprises two screw rod modules which synchronously act and two driving motors which drive the screw rod modules to act, the driving motors drive the screw rod modules to act so as to drive the sliding blocks to slide up and down on the screw rod modules, the screw rod modules are positioned on the outer sides of the door rail beams, and each door rail beam corresponds to one screw rod module; the sliding block is connected with the shielding door frame through a sliding block connecting plate, a connecting plate clamping piece matched with the sliding block connecting plate is arranged on one side of the shielding door frame, the connecting plate clamping piece is clamped into one side of the shielding door frame, and one end of the sliding block connecting plate is clamped into the connecting plate clamping piece.
10. The box-type multimode animal self-shielding nuclear magnetic resonance machine of claim 9, wherein: the shielding door frame comprises an upper section bar beam, a lower section bar beam and a plurality of section bar vertical beams connected between the upper section bar beam and the lower section bar beam, wherein section bar vertical beams are arranged between the two ends of the upper section bar beam and the lower section bar beam, and reinforcing blocks are arranged at the joint of the upper section bar beam and the section bar vertical beams and the joint of the lower section bar beam and the section bar vertical beams; the number of the profile vertical beams is 4, and the distance between the two profile vertical beams in the middle is larger than the distance between the profile vertical beam in the middle and the profile vertical beam on the corresponding side; the tops of the two door rail beams are connected through an upper baffle, an upper conductive heat-insulating foam strip is arranged on the inner side of the upper baffle, the bottoms of the two door rail beams are connected through a lower baffle, and a lower conductive heat-insulating foam strip is arranged on the inner side of the lower baffle; the driving motor is arranged at the bottom of the screw rod module, and a plurality of screw rod module mounting plates are arranged on the back surface of the screw rod module.
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| KR20140121799A (en) * | 2014-08-20 | 2014-10-16 | 이원섭 | A Shield door for MRI |
| CN105748075A (en) * | 2016-05-12 | 2016-07-13 | 吴锋 | Vehicle-mounted nuclear magnetic resonance imaging system |
| CN205947785U (en) * | 2016-05-12 | 2017-02-15 | 北京五洲康泰科技有限公司 | On -vehicle nuclear magnetic resonance imaging system |
| CN106714535B (en) * | 2016-11-29 | 2018-10-12 | 大连港森立达木材交易中心有限公司 | A kind of high shielding large size shielding cabin |
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