CN113729682A - Box type multi-mode animal self-shielding nuclear magnetic resonance machine - Google Patents
Box type multi-mode animal self-shielding nuclear magnetic resonance machine Download PDFInfo
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- CN113729682A CN113729682A CN202010696659.0A CN202010696659A CN113729682A CN 113729682 A CN113729682 A CN 113729682A CN 202010696659 A CN202010696659 A CN 202010696659A CN 113729682 A CN113729682 A CN 113729682A
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- 238000005481 NMR spectroscopy Methods 0.000 title claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims abstract description 137
- 238000004321 preservation Methods 0.000 claims abstract description 48
- 239000006260 foam Substances 0.000 claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 24
- 238000012423 maintenance Methods 0.000 claims description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052802 copper Inorganic materials 0.000 claims description 26
- 239000010949 copper Substances 0.000 claims description 26
- 229920000742 Cotton Polymers 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000002937 thermal insulation foam Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 21
- 238000001514 detection method Methods 0.000 description 16
- 238000001914 filtration Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 235000009074 Phytolacca americana Nutrition 0.000 description 1
- 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
- 230000001360 synchronised effect Effects 0.000 description 1
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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
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- 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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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Radiology & Medical Imaging (AREA)
- Power Engineering (AREA)
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- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
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- 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 outer 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; 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. According to the invention, the frame-type self-shielding magnet, the shielding inner shell, the shielding outer shell and the multiple layers of conductive heat-preservation foam are adopted, so that multiple shielding effects are achieved, and meanwhile, the upper magnetic cover, the lower magnetic cover and the middle position of the shielding inner shell are arranged in a staggered manner, so that the mounting space is reduced on the premise of ensuring the mounting stability, and the multi-layer self-shielding magnetic shield is simple and small in structure and good in ventilation effect; the lifting type shielding door driven by the lifting mechanism is adopted in the shielding door structure, 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, a conventional nuclear magnetic detection room usually occupies a large area, and a doctor operating room, a detection shielding room and equipment need to be separated, so that the shielding requirement is complex, the shielding cost is high, and the pet hospital generally occupies a small area, so that a lot of pet hospitals cannot establish nuclear magnetic detection due to the fact that construction conditions of the shielding room are not established; therefore, a nuclear magnetic detection device special for pets and small in floor area needs to be invented, and a conventional magnet structure for a nuclear magnetic detection room is large in floor area, not suitable for small-size nuclear magnetic detection devices and generally has no self-shielding function;
nuclear magnetic detection equipment is generally required to be provided with auxiliary functional components, such as ventilation structures, filtering devices, monitoring facilities and the like, which cannot be directly installed on a magnetic main body, so that a special shielding rear cover is required to be designed for installing the components;
the nuclear magnetic detection equipment needs to be provided with a small bed body which is flexible and convenient to slide, and the conventional bed body mounting structure for the nuclear magnetic detection room is not suitable for small-volume nuclear magnetic detection equipment or has higher cost;
and the conventional shielding door for the nuclear magnetic detection room is usually a transversely moving shielding door, has larger floor 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 matched with a shielding outer shell and a plurality of layers of conductive heat-insulating bubble surfaces, so that a multi-shielding effect is achieved, and meanwhile, the upper and lower magnetic cylinder covers and the center position of the magnet are designed in an offset manner, so that the spatial layout is reduced to the maximum extent on the premise of ensuring the installation stability and not influencing magnetic dissipation; the rear cover assembly integrates functional components such as ventilation, filtering and monitoring 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 a 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 interior of the resonance machine, and the rear cover assembly is simple and small in structure and good in ventilation effect; 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 door plate copper mesh is designed on the inner side of the shielding door plate, the shielding effect of the door plate copper mesh is guaranteed, meanwhile, the shielding door plate and the door plate copper mesh are firmly and reliably installed, and the stable and reliable lifting of the shielding door is guaranteed for the box-type multimode animal self-shielding nuclear magnetic resonance machine.
The technical scheme of the invention is as follows: a box-type multimode animal self-shielding nuclear magnetic resonance machine comprises a shielding shell, a self-shielding magnet structure arranged in the shielding shell, a rear cover assembly, a bed body mounting structure and a shielding door structure arranged on the front side of the shielding shell, wherein the self-shielding magnet structure comprises a self-shielding magnet, a magnet waveguide tube arranged at the top of the self-shielding magnet, a shielding inner shell arranged inside the self-shielding magnet, an upper magnetic cover arranged at the top of the shielding inner shell and a lower magnetic cover 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 at the rear side of the self-shielding magnet, an upper magnetic cover mounting ring matched with the upper magnetic cover is arranged in the middle of the top of the self-shielding magnet, a lower magnetic cover mounting ring matched with the lower magnetic cover is arranged in the middle of the bottom of the self-shielding magnet, and first conductive heat-insulation foam is arranged on the outer sides of the self-shielding magnet and the rear cover, a second conductive heat-preservation foam is arranged between the shielding inner shell and the self-shielding magnet, a third conductive heat-preservation foam is arranged between the upper magnetic cover and the upper magnetic cover mounting ring, a fourth conductive heat-preservation foam is arranged between the lower magnetic cover and the lower magnetic cover mounting ring, and a fifth conductive heat-preservation foam is arranged between the self-shielding magnet and the front frame;
the rear cover assembly comprises a rear cover, a ventilation structure and a wiring terminal which are installed at the bottom of the rear cover, and a filter box and a camera which are installed at the rear side of the rear cover, wherein the ventilation structure comprises a ventilation pipe, a ventilation nozzle which is fixed at the top of the ventilation pipe, a ventilation fan which is installed below the ventilation pipe, and a ventilation opening which is located at the top of the ventilation nozzle;
the shielding door structure comprises two door rail beams of a shielding door, a matched 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, the shielding door frame is connected with the shielding door lifting mechanism through a sliding block, the door plate copper net is located between the shielding door plate and the shielding door frame, a door plate fixing flanging of the matched shielding door frame is arranged at the top of the shielding door plate, a copper net fixing flanging of the matched door plate fixing flanging 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 a box-type frame self-shielding magnet, the inner side of the self-shielding magnet is provided with a shielding inner shell which is matched with a shielding outer shell and a plurality of layers of conductive heat-insulating bubble surfaces, so that a multi-shielding effect is achieved, and meanwhile, the upper and lower magnetic cylinder covers and the center position of the magnet are designed in an offset manner, so that the spatial layout is reduced to the maximum extent on the premise of ensuring the installation stability and not influencing magnetic dissipation; the rear cover assembly integrates functional components such as ventilation, filtering and monitoring 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 a 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 interior of the resonance machine, and the rear cover assembly is simple and small in structure and good in ventilation effect; 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 door plate copper mesh is designed on the inner side of the shielding door plate, the shielding effect of the door plate copper mesh is guaranteed, meanwhile, the shielding door plate and the door plate copper mesh are firmly and reliably installed, and the stable and reliable lifting of the shielding door is 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; the downside of magnet bottom plate is equipped with four support columns, the front side of shield plate is equipped with the cotton of sixth electrically conductive heat preservation bubble.
The structure ensures the self-shielding effect, and the upper and lower magnetic covers are arranged in the middle of the self-shielding magnet and can be staggered with the middle of the shielding inner shell, so that the inner invalid 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 upper magnetic cover and the lower magnetic cover are convenient to mount; the supporting 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 includes inner shell bottom plate and the bed body of sliding connection on the inner shell bottom plate, the bed body is through two sets of multistage flexible slide rail set spare sliding connection on the inner shell bottom plate, be equipped with down the magnetic cover hole on the inner shell bottom plate, after the bed body slides to the right place, the position of the bed body is corresponding with the position in lower magnetic cover hole, and the distance between the side of the bed body and the inner shell bottom plate that corresponds rather than between the side is greater than the distance between the other one side of the bed body and the other one side of inner shell bottom plate.
The bed body is connected to the inner shell bottom plate in a sliding mode through the multi-stage telescopic sliding rail assemblies, not only can be used as a small bed body, but also the bed body can be conveniently and stably moved in and out, meanwhile, after the bed body slides in place, the middle positions of the bed body and the inner shell bottom plate are distributed in a staggered mode, the inner dead space is reduced, the installation space is reduced on the premise that the installation stability of the bed body is guaranteed, and the bed body is suitable for small-size nuclear magnetism detection equipment.
Preferably, each group of multi-stage telescopic slide rail assemblies comprises a double-groove slide rail frame, an upper slide rail and a lower slide rail, wherein the upper slide rail and the lower slide rail are slidably connected to the double-groove slide rail frame; the lower slide rail is fixed on the inner shell bottom plate through the lower fixing beam, the upper slide rail is fixed on the bed body through the upper fixing beam, the length of the lower fixing beam is matched with that of the double-groove slide rail frame, the length of the upper fixing beam is smaller than that of the upper slide rail, and one end of the upper fixing beam is aligned with one end of the upper slide rail.
The structure further ensures the stable and reliable telescopic sliding of the bed body and the stable and reliable limit of the bed body after the bed body slides in place; ensure that the connection between the bed body and the multistage telescopic slide rail assembly and between the multistage telescopic slide rail assembly and the inner shell bottom plate is more stable and reliable.
Preferably, the lower fixed 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 fixed beam, one end of the double-groove slide rail frame and one end of the lower fixed beam are flush, and the other ends of the double-groove slide rail frame and the lower fixed beam are also flush; the spring limit pin assembly comprises a limit pin arranged at one end of the upper slide rail, a limit shifting block arranged on the limit pin and a reset spring, the upper part of one end of the lower slide rail is provided with a limit pin hole matched with the limit pin, and the limit pin is provided with a shifting block mounting shaft matched with the limit shifting block; the bed body is fixed with the upper fixed beam through bed legs, and the bed legs are provided with fixed grooves matched with the upper fixed beam; one end of the lower fixed beam penetrates out of the rear side of the magnet bottom plate, and a lower fixed beam hole matched with the lower fixed 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 the bed body slides in place and the middle position of the bottom plate of the inner shell; further ensuring the stability and reliability of the limiting after the bed body slides in place; further ensure the firm and reliable connection between the bed body and the multi-stage telescopic slide rail component.
Preferably, 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, insert through locking bolt locking in the ventilation pipe mounting groove in the top of ventilation pipe.
The structure ensures that the assembly between the ventilating pipe and the ventilating nozzle is firm and reliable, and further ensures the ventilating effect.
Preferably, the vent is flat, and an air guide step matched with the vent is arranged inside the vent nozzle; the bottom of the ventilation pipe is arranged on the inner side of the bottom of the rear cover through an installation 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 air outlet of the air nozzle protrudes forwards to form an air guide bulge, and two sides of the air guide bulge are obliquely arranged; the ventilation fan is a direct current axial flow fan, and the width of the ventilation opening is greater than four times the height of the ventilation opening.
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; the ventilation effect of the ventilation structure is further ensured.
Preferably, a filter protection cover matched with the filter is arranged on the filter plate and 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 a 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 greater 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 large maintenance door in the middle through a camera bracket; the inner wall of the rear cover is provided with seventh conductive heat-preservation foam, the front side of the seventh conductive heat-preservation foam is provided with a conductive heat-preservation foam flanging, the inner surface of the rear side of the rear cover is provided with eighth conductive heat-preservation foam, and the outer surface of the rear side of the rear cover is provided with ninth conductive heat-preservation foam.
The structure not only ensures the installation firmness of the filter, but also can well protect the filter; the maintenance of the internal structure is convenient; the installation firmness of the camera is ensured; ensuring the stability of the whole structure.
Preferably, the shield door lifting mechanism comprises two lead screw modules which synchronously act and two driving motors which drive the lead screw modules to act, the driving motors drive the lead screw modules to act to drive the sliding blocks to slide up and down on the lead screw modules, the lead screw modules are positioned on the outer sides of the door rail beams, and each door rail beam corresponds to one lead screw module; the slider is connected with the shielding portal through a slider connecting plate, one side of shielding portal is equipped with the connecting plate joint spare of cooperation slider connecting plate, connecting plate joint spare card is gone into in one side of shielding portal, the one end card of slider connecting plate is gone into in the connecting plate joint spare.
The structure further ensures the stable and reliable lifting of the shielding door; the firm and reliable connection between the sliding block and the shielding door frame is ensured, and the stable and reliable lifting of the shielding door is further ensured.
Preferably, the shielding portal comprises an upper section beam, a lower section beam and a plurality of section vertical beams connected between the upper section beam and the lower section beam, the section vertical beams are arranged between two ends of the upper section beam and two ends of the lower section beam, and reinforcing blocks are arranged at the joint of the upper section beam and the section vertical beam and the joint of the lower section beam and the section vertical beam; the number of the vertical section beams is 4, and the distance between the two middle vertical section beams is greater than the distance between the middle vertical section beam and the vertical section beams on the corresponding side edges; the tops of the two door rail beams are connected through an upper baffle, the inner side of the upper baffle is provided with an upper conductive heat-preservation foam cotton strip, the bottoms of the two door rail beams are connected through a lower baffle, and the inner side of the lower baffle is provided with a lower conductive heat-preservation foam cotton strip; the driving motor is installed at the bottom of the screw module, and a plurality of screw module installation plates are arranged on the back face of the screw module.
The structure ensures that the shielding door frame is firm and reliable in structure, so that the integral strength of the shielding door is ensured; further ensuring the structural firmness of the shielding door; the connection of the door rail beam is ensured to be firm and reliable, so that the stable and reliable lifting of the shielding door is further ensured; the screw module can be firmly and reliably mounted.
The self-shielding magnet structure adopts a box-type frame self-shielding magnet, the inner side of the self-shielding magnet is provided with a shielding inner shell which is matched with a shielding outer shell and a plurality of layers of conductive heat-insulating bubble surfaces, so that a multi-shielding effect is achieved, and meanwhile, the upper and lower magnetic cylinder covers and the center position of the magnet are designed in an offset manner, so that the spatial layout is reduced to the maximum extent on the premise of ensuring the installation stability and not influencing magnetic dissipation; the rear cover assembly integrates functional components such as ventilation, filtering and monitoring 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 a 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 interior of the resonance machine, and the rear cover assembly is simple and small in structure and good in ventilation effect; 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 door plate copper mesh is designed on the inner side of the shielding door plate, the shielding effect of the door plate copper mesh is guaranteed, meanwhile, the shielding door plate and the door plate copper mesh are firmly and reliably installed, and the stable and reliable lifting of the shielding door is guaranteed.
Drawings
FIG. 1 is a schematic view of one of the angles of the present invention;
FIG. 2 is a schematic view of another embodiment of the present invention;
FIG. 3 is a schematic structural view 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 a bed mounting structure according to the present invention at one angle;
FIG. 6 is an enlarged schematic view at I of FIG. 5;
FIG. 7 is a schematic view of another angle of the bed mounting structure of the present invention;
FIG. 8 is a schematic structural view of a rear cover 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 structural view of a tuyere of the present invention;
FIG. 11 is a schematic view of a shield door according to one of the angles of the shield door structure of the present invention;
FIG. 12 is a schematic view of another angle of the shield door structure of the present invention;
in the figure, 1, a magnet top plate, 2, a magnet bottom plate, 3, a magnet side plate, 4, a rear cover, 5, a magnet waveguide tube, 6, a waveguide tube mounting hole, 7, an upper magnetic cover, 8, a lower magnetic cover, 9, an upper magnetic cover mounting ring, 10, a lower magnetic cover mounting ring, 11, a first conductive heat-preservation foam, 12, a second conductive heat-preservation foam, 13, a third conductive heat-preservation foam, 14, a fourth conductive heat-preservation foam, 15, a fifth conductive heat-preservation foam, 16, a sixth conductive heat-preservation foam, 17, a door rail beam, 18, an upper baffle, 19, a lower baffle, 20, a shielding plate, 21, an inner shell top plate, 22, an inner shell bottom plate, 23, an inner shell side plate, 24, an inner shell back plate, 25, an upper magnetic cover hole, 26, a lower magnetic cover hole, 27, a reinforcing block, 28, a lower fixing beam hole, 29, a supporting column, 30, a shielding outer shell, 31, a bed body, 32, a front baffle, 33, a shielding door structure, 34, a double-groove sliding rail frame, 35. an upper slide rail, 36 lower slide rails, 37 upper fixed beams, 38 lower fixed beams, 39 bed feet, 40 fixed grooves, 41 limit pins, 42 limit shifting blocks, 43 reset springs, 44 limit pin holes, 45 shifting block mounting shafts, 46 ventilation structures, 47 wiring terminals, 48 filter boxes, 49 cameras, 50 filters, 51 filter plates, 52 filter protective covers, 53 protective front covers, 54 protective rear covers, 55 ventilation pipes, 56 ventilation nozzles, 57 ventilation fans, 58 ventilation openings, 59 ventilation pipe mounting parts, 60 ventilation pipe mounting grooves, 61 locking bolt holes, 62 ventilation steps, 63 mounting pieces, 64 ventilation protrusions, 65 seventh conductive heat preservation foam, 66 eighth conductive heat preservation foam, 67 ninth conductive heat preservation foam, 68 conductive heat preservation foam flanging, 69 large maintenance doors, 70 small maintenance doors, 71. the camera comprises a camera support, 72 parts of a shielding door plate, 73 parts of a shielding door frame, 74 parts of a lead screw module, 75 parts of a driving motor, 76 parts of a sliding block, 77 parts of a sliding block connecting plate, 78 parts of a connecting plate clamping piece, 79 parts of a door plate fixing flange, 80 parts of a copper mesh fixing flange, 81 parts of a lead screw module mounting plate, 82 parts of an upper section bar beam, 83 parts of a lower section bar beam, 84 parts of a section bar vertical beam, 85 parts of an upper conductive heat-preservation foam cotton sliver, 86 parts of a lower conductive heat-preservation foam cotton sliver and 87 parts of a door plate copper mesh.
Detailed Description
The present invention will be described in further detail with reference to the attached drawings, but the present invention is not limited thereto.
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 on the front side of the shielding shell, wherein a front baffle 32 is arranged below the shielding door structure.
As shown in fig. 3 and 4, the self-shielded magnet structure includes a self-shielded magnet, a magnet waveguide 5 installed on the top of the self-shielded magnet, a shielded inner casing installed inside the self-shielded magnet, an upper magnetic cover 7 installed on the top of the shielded inner casing, a lower magnetic cover 8 installed on the bottom of the shielded inner casing, a rear cover 4 installed on the rear side of the self-shielded magnet, and a front frame installed on the front side of the self-shielded magnet, wherein the front side of the shielded inner casing is flush with the front side of the self-shielded magnet, the rear side of the shielded inner casing is exposed on the rear side of the self-shielded magnet, the rear cover 4 covers the rear side of the shielded inner casing, the front side of the rear cover 4 is connected with the rear side of the self-shielded 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-shielded 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-shielded magnet, a first conductive heat-insulating foam 11 is arranged on the outer sides of the self-shielded magnet and the rear cover 4, second conductive heat-preservation foam 12 is arranged between the shielding inner shell and the self-shielding magnet, third conductive heat-preservation foam 13 is arranged between the upper magnetic cover 7 and the upper magnetic cover mounting ring 9, fourth conductive heat-preservation foam 14 is arranged between the lower magnetic cover 8 and the lower magnetic cover mounting ring 10, and fifth conductive heat-preservation foam 15 is arranged between the self-shielding magnet and the front frame. 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 the magnet top plate 1 is provided with a waveguide tube mounting hole 6 matched with a magnet waveguide tube 5, 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 and the front side of the self-shielding magnet are connected through a shielding plate 20. The shielding 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 and the two inner shell side plates 23 are 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 fixed beam 38 matched with the bed body, one end of the lower fixed 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 fixed beam hole 28 matched with the lower fixed beam 38. Four support columns 29 are arranged on the lower side of the magnet bottom plate 2, and a sixth conductive heat-preservation foam 16 is arranged on the front side of the shielding plate 20.
As shown in fig. 5 to 7, the bed body installation 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 slide rail assemblies, after the bed body 31 slides 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 to the double-groove slide rail frame 34 in a sliding mode, the upper slide rail 35 is fixed on the bed body 31, the lower slide rail 36 is fixed on the inner shell bottom plate 22, the length of the upper slide rail 35 is matched with that of the lower slide rail 36, and when the bed body 31 slides in place, the upper slide rail 35 and the lower slide rail 36 are limited through 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 fixed beam 38 is fixed in the middle of the inner shell bottom plate 22, and when the bed body 31 slides in place, one end of the upper fixed beam 37, one end of the double-groove slide rail frame 34 and one end of the lower fixed beam 38 are flush, and the other ends of the double-groove slide rail frame 34 and the lower fixed beam 38 are also flush. The spring limit pin assembly comprises a limit pin 41 arranged at one end of the upper slide rail 35, a limit shifting block 42 arranged on the limit pin 41 and a return spring 43, the upper part of one end of the lower slide rail 36 is provided with a limit pin hole 44 matched with the limit pin 41, and the limit pin 41 is provided with a shifting block installation shaft 45 matched with the limit shifting block 42. The bed body 31 is fixed with the upper fixed beam 37 through bed legs 39, and the bed legs 39 are provided with fixing grooves 40 matched with the upper fixed beam 37.
As shown in fig. 8-10, the rear cover assembly includes a rear cover 4, a ventilation structure 46 and a connection terminal 47 installed at the bottom of the rear cover 4, and a filter box 48 and a camera 49 installed at the rear side of the rear cover 4, the ventilation structure 46 includes a ventilation pipe 55, a ventilation nozzle 56 fixed at the top of the ventilation pipe 55, a ventilation fan 57 installed below the ventilation pipe 55, and a ventilation opening 58 located at the top of the ventilation nozzle 56, the ventilation pipe 55 and the ventilation nozzle 56 are both installed at the inner side of the bottom of the rear cover 4 and communicated with the outer side of the bottom of the rear cover 4, the ventilation fan 57 is fixed at the outer side of the bottom of the rear cover 4 and communicated with the inner side of the bottom of the rear cover 4, the ventilation opening 58 is aligned with the bed 31, the ventilation fan 57 is aligned with the bottom of the ventilation pipe 55, a plurality of filters 50 are installed inside the filter box 48, and the filters 50 are installed on the rear cover 4 through the filter plate 51. The bottom of the ventilation nozzle 56 is provided with a ventilation pipe mounting part 59 matched with the ventilation pipe 55, the bottom of the ventilation pipe mounting part 59 is provided with a ventilation pipe mounting groove 60, one side of the ventilation pipe mounting part 59 is provided with a locking bolt hole 61, and the top of the ventilation pipe 55 is inserted into the ventilation pipe mounting groove 60 and locked through a locking bolt. The ventilation opening 58 is flat, and a wind guiding step 62 matched with the ventilation opening 58 is arranged inside the ventilation nozzle 56. The bottom of the ventilation pipe 55 is mounted inside the bottom of the rear cover 4 by a mounting plate 63, and the ventilation fan 57 is fixed outside the bottom of the rear cover 4 by a plurality of fixing screws. The air vent of the air nozzle 56 protrudes forward to form an air guide protrusion 64, and two sides of the air guide protrusion 64 are obliquely arranged. The ventilation fan 57 is a direct flow axial 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 protection cover 52 fitted to the filter 50, and the filter protection cover 52 is divided into a protection front cover 53 fixed to the front side of the filter plate 51 and a protection rear cover 54 fixed to the rear side of the filter plate 51. The rear side of rear cover 4 still is equipped with three maintenance door, and the maintenance door includes two big maintenance doors 69 and a little maintenance door 70, and the width of big maintenance door 69 is the same with the width of little maintenance door 70, and the height of big maintenance door 69 is greater than the height of little maintenance door 70, and little maintenance door 70 is located the top of filter box 48. The camera 49 is mounted on the upper side of the large service door in the middle by a camera bracket 71. The inner wall of rear cover 4 is equipped with the cotton 65 of first electrically conductive heat preservation bubble, and the front side of the cotton 65 of first electrically conductive heat preservation bubble is equipped with the cotton turn-ups 68 of electrically conductive heat preservation bubble, and the rear side internal surface of rear cover 4 is equipped with the cotton 66 of second electrically conductive heat preservation bubble, and the rear side external surface of rear cover 4 is equipped with the cotton 67 of third electrically conductive heat preservation bubble.
As shown in fig. 11 and 12, the shield door structure 33 includes a shield door, two door rail beams 17 cooperating with the shield door, and a shield door lifting mechanism for driving the shield door to lift on the two door rail beams 17, the shield door includes a shield door frame 73 and a shield door panel 72 installed on the front side of the shield door frame 73, a door panel copper mesh 87 is arranged on the inner side of the shield door panel 72, the shield door frame 73 is connected with the shield door lifting mechanism through a slider 76, the door panel copper mesh 87 is located between the shield door panel 72 and the shield door frame 73, a door panel fixing flange 79 cooperating with the shield door frame 73 is arranged on the top of the shield door panel 72, and a copper mesh fixing flange 80 cooperating with the door panel fixing flange 79 is arranged on the top of the door panel copper mesh 87. The shielding door lifting mechanism comprises two lead screw modules 74 which synchronously act and two driving motors 75 which drive the lead screw modules 74 to act, the driving motors 75 drive the lead screw modules 74 to act to drive the sliding blocks 76 to slide up and down on the lead screw modules 74, the lead screw modules 74 are located on the outer sides of the door rail beams 17, and each door rail beam corresponds to one lead screw module. The slider 76 is connected with the shielding door frame 73 through a slider connecting plate 77, a connecting plate clamping piece 78 matched with the slider connecting plate 77 is arranged on one side of the shielding door frame 73, the connecting plate clamping piece 78 is clamped into one side of the shielding door frame 73, and one end of the slider connecting plate 77 is clamped into the connecting plate clamping piece 78. The shielding portal 73 comprises an upper profile cross beam 82, a lower profile cross beam 83 and 4 profile vertical beams 84 connected between the upper profile cross beam 82 and the lower profile cross beam 83, the profile vertical beams 84 are arranged between two ends of the upper profile cross beam 82 and the lower profile cross beam 83, and reinforcing blocks 27 are arranged at the joint of the upper profile cross beam 82 and the profile vertical beams 84 and the joint of the lower profile cross beam 83 and the profile vertical beams 84. The distance between the two middle vertical section beams is greater than the distance between the middle vertical section beam and the vertical section beams on the corresponding side edges. The tops of the two door rail beams are connected through the upper baffle plate 18, the inner side of the upper baffle plate 18 is provided with an upper conductive heat-preservation foam strip 85, the bottoms of the two door rail beams are connected through the lower baffle plate 19, and the inner side of the lower baffle plate 19 is provided with a lower conductive heat-preservation foam strip 86. The driving motor 75 is installed at the bottom of the screw module 74, and a plurality of screw module mounting plates 81 are arranged on the back 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 the upper magnetic cover and the lower magnetic cover are deviated 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 the spaces on two sides are not symmetrical with each other, so that the space on the side without a larger space can be reduced to the minimum as much as possible, the invalid space in the self-shielding magnet structure is reduced, and the volume of equipment is further reduced.
When the bed body is used, the limiting pin is poked through the limiting poking block, the bed body is pulled, generally, the upper sliding rail slides and pulls out in the double-groove sliding rail frame, after the upper sliding rail is completely pulled out, the double-groove sliding rail frame slides and pulls 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 slides and pushes in relative to the lower sliding rail, and after the bed body slides in place, the limiting poking block pokes the limiting pin to be clamped into the limiting pin hole of the lower sliding rail, so that the stability and reliability of the bed body limiting are ensured.
The bed body is pushed in place for many times, 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 without a large space can be reduced to the minimum as much as possible, the invalid space in the device is reduced, and the volume of the device 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 firstly or the double-groove sliding rail frame is pulled out relative to the lower sliding rail firstly without fixed sequence; in the process of pushing the bed body in the invention, the upper slide rail is pushed relative to the double-groove slide rail frame firstly or the double-groove slide rail frame is pushed relative to the lower slide rail firstly, and the fixed sequence is not available.
The multistage telescopic sliding rail assembly and the spring limiting pin assembly are conventional components purchased in the market, and the specific structure and action principle are conventional means, so detailed description is omitted.
When the ventilation structure is used, the ventilation fan is started, and the ventilation fan ventilates the interior of the resonance machine through the ventilation pipe and the ventilation nozzle.
The ventilation fan in the invention is a conventional component purchased in the market, and the specific structure and action principle are conventional means, so detailed description is omitted.
When the shielding door structure is used, when the door needs to be opened, the door opening switch is pressed, the two driving motors synchronously act to drive the two lead screw modules to synchronously act to drive the shielding door to upwards slide 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 to drive the two lead screw modules to synchronously act to drive the shielding door to slide downwards on the lifting guide rail.
The screw module is a conventional component purchased in the market, the two screw modules synchronously act, and the synchronous action can be realized only by controlling the driving motor, and the specific structure and action principle are conventional means, so detailed description is omitted.
The self-shielding magnet structure adopts a box-type frame self-shielding magnet, the inner side of the self-shielding magnet is provided with a shielding inner shell which is matched with a shielding outer shell and a plurality of layers of conductive heat-insulating bubble surfaces, so that a multi-shielding effect is achieved, and meanwhile, the upper and lower magnetic cylinder covers and the center position of the magnet are designed in an offset manner, so that the spatial layout is reduced to the maximum extent on the premise of ensuring the installation stability and not influencing magnetic dissipation; the rear cover assembly integrates functional components such as ventilation, filtering and monitoring 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 a 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 interior of the resonance machine, and the rear cover assembly is simple and small in structure and good in ventilation effect; 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 door plate copper mesh is designed on the inner side of the shielding door plate, the shielding effect of the door plate copper mesh is guaranteed, meanwhile, the shielding door plate and the door plate copper mesh are firmly and reliably installed, and the stable and reliable lifting of the shielding door is guaranteed.
Claims (10)
1. The utility model provides a box multimode animal is from shielding nuclear magnetic resonance machine which characterized in that: the self-shielding magnetic structure comprises a self-shielding magnet, a self-shielding magnet structure arranged in the self-shielding magnet, a rear cover assembly, a bed body mounting structure and a shielding door structure arranged on the front side of the self-shielding magnet, wherein the self-shielding magnet structure comprises a self-shielding magnet, a magnet waveguide tube arranged at the top of the self-shielding magnet, a shielding inner shell arranged inside the self-shielding magnet, an upper magnetic cover arranged at the top of the shielding inner shell and a lower magnetic cover 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 at the rear side of the self-shielding magnet, an upper magnetic cover mounting ring matched with the upper magnetic cover is arranged in the middle of the top of the self-shielding magnet, a lower magnetic cover mounting ring matched with the lower magnetic cover is arranged in the middle of the bottom of the self-shielding magnet, first conductive heat-insulation foam is arranged on the outer sides of the self-shielding magnet and the rear cover, second conductive heat-insulation foam is arranged between the shielding inner shell and the self-shielding magnet, a third conductive heat-preservation foam is arranged between the upper magnetic cover and the upper magnetic cover mounting ring, a fourth conductive heat-preservation foam is arranged between the lower magnetic cover and the lower magnetic cover mounting ring, and a fifth conductive heat-preservation foam is arranged between the self-shielding magnet and the front frame;
the rear cover assembly comprises a rear cover, a ventilation structure and a wiring terminal which are installed at the bottom of the rear cover, and a filter box and a camera which are installed at the rear side of the rear cover, wherein the ventilation structure comprises a ventilation pipe, a ventilation nozzle which is fixed at the top of the ventilation pipe, a ventilation fan which is installed below the ventilation pipe, and a ventilation opening which is located at the top of the ventilation nozzle;
the shielding door structure comprises two door rail beams of a shielding door, a matched 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, the shielding door frame is connected with the shielding door lifting mechanism through a sliding block, the door plate copper net is located between the shielding door plate and the shielding door frame, a door plate fixing flanging of the matched shielding door frame is arranged at the top of the shielding door plate, a copper net fixing flanging of the matched door plate fixing flanging 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 according to claim 1, characterized in that: 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 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 and the two inner shell side plates are 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 supporting columns are arranged on the lower side of the magnet bottom plate, and a sixth conductive heat-preservation 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, characterized in that: the bed body mounting structure comprises a bed body which is connected onto the inner shell bottom plate in a sliding mode, the bed body is connected onto the inner shell bottom plate in a sliding mode 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. The box-type multimode animal self-shielding nuclear magnetic resonance machine according to claim 3, characterized in that: each group of multistage telescopic slide rail assemblies comprises a double-groove slide rail frame, an upper slide rail and a lower slide rail, wherein the upper slide rail and the lower slide rail are connected to the double-groove slide rail frame in a sliding manner; the lower slide rail is fixed on the inner shell bottom plate through the lower fixing beam, the upper slide rail is fixed on the bed body through the upper fixing beam, the length of the lower fixing beam is matched with that of the double-groove slide rail frame, the length of the upper fixing beam is smaller than that of the upper slide rail, and one end of the upper fixing beam is aligned with one end of the upper slide rail.
5. The box-type multimode animal self-shielding nuclear magnetic resonance machine according to claim 4, characterized in that: the lower fixed 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 fixed beam, one end of the double-groove slide rail frame and one end of the lower fixed beam are flush, and the other ends of the double-groove slide rail frame and the lower fixed beam are also flush; the spring limit pin assembly comprises a limit pin arranged at one end of the upper slide rail, a limit shifting block arranged on the limit pin and a reset spring, the upper part of one end of the lower slide rail is provided with a limit pin hole matched with the limit pin, and the limit pin is provided with a shifting block mounting shaft matched with the limit shifting block; the bed body is fixed with the upper fixed beam through bed legs, and the bed legs are provided with fixed grooves matched with the upper fixed beam; one end of the lower fixed beam penetrates out of the rear side of the magnet bottom plate, and a lower fixed beam hole matched with the lower fixed beam is formed in the inner shell bottom plate.
6. The box-type multimode animal self-shielding nuclear magnetic resonance machine according to claim 1, characterized in that: 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, insert in the ventilation pipe mounting groove through locking bolt locking in the top of ventilation pipe.
7. The box-type multimode animal self-shielding nuclear magnetic resonance machine according to claim 6, characterized in that: the ventilation opening is flat, and an air guide step matched with the ventilation opening is arranged inside the ventilation nozzle; the bottom of the ventilation pipe is arranged on the inner side of the bottom of the rear cover through an installation 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 air outlet of the air nozzle protrudes forwards to form an air guide bulge, and two sides of the air guide bulge are obliquely arranged; the ventilation fan is a direct current axial flow fan, and the width of the ventilation opening is greater than four times the height of the ventilation opening.
8. The box-type multimode animal self-shielding nuclear magnetic resonance machine according to claim 1, characterized in that: 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 a 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 greater 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 large maintenance door in the middle through a camera bracket; the inner wall of the rear cover is provided with seventh conductive heat-preservation foam, the front side of the seventh conductive heat-preservation foam is provided with a conductive heat-preservation foam flanging, the inner surface of the rear side of the rear cover is provided with eighth conductive heat-preservation foam, and the outer surface of the rear side of the rear cover is provided with ninth conductive heat-preservation foam.
9. The box-type multimode animal self-shielding nuclear magnetic resonance machine according to claim 1, characterized in that: the shielding door lifting mechanism comprises two lead screw modules which synchronously act and two driving motors which drive the lead screw modules to act, the driving motors drive the lead screw modules to act to drive the sliding blocks to slide up and down on the lead screw modules, the lead screw modules are positioned on the outer sides of the door rail beams, and each door rail beam corresponds to one lead screw module; the slider is connected with the shielding portal through a slider connecting plate, one side of shielding portal is equipped with the connecting plate joint spare of cooperation slider connecting plate, connecting plate joint spare card is gone into in one side of shielding portal, the one end card of slider connecting plate is gone into in the connecting plate joint spare.
10. The box-type multimode animal self-shielding nuclear magnetic resonance machine according to claim 9, characterized in that: the shielding portal frame comprises an upper section bar cross beam, a lower section bar cross beam and a plurality of section bar vertical beams connected between the upper section bar cross beam and the lower section bar cross beam, the section bar vertical beams are arranged between two ends of the upper section bar cross beam and two ends of the lower section bar cross beam, and reinforcing blocks are arranged at the joint of the upper section bar cross beam and the section bar vertical beams and the joint of the lower section bar cross beam and the section bar vertical beams; the number of the vertical section beams is 4, and the distance between the two middle vertical section beams is greater than the distance between the middle vertical section beam and the vertical section beams on the corresponding side edges; the tops of the two door rail beams are connected through an upper baffle, the inner side of the upper baffle is provided with an upper conductive heat-preservation foam cotton strip, the bottoms of the two door rail beams are connected through a lower baffle, and the inner side of the lower baffle is provided with a lower conductive heat-preservation foam cotton strip; the driving motor is installed at the bottom of the screw module, and a plurality of screw module installation plates are arranged on the back face of the screw module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010696659.0A CN113729682B (en) | 2020-07-20 | 2020-07-20 | Box-type multimode animal self-shielding nuclear magnetic resonance machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010696659.0A CN113729682B (en) | 2020-07-20 | 2020-07-20 | Box-type multimode animal self-shielding nuclear magnetic resonance machine |
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| CN113729682A true CN113729682A (en) | 2021-12-03 |
| CN113729682B CN113729682B (en) | 2024-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
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|---|---|---|---|---|
| CN114562133A (en) * | 2022-02-24 | 2022-05-31 | 北京航空航天大学 | Reconfigurable magnetic shielding room with non-magnetic track |
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| CN113729682B (en) | 2024-09-03 |
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