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CN117562764B - DC motor driven magnetic resonance sickbed system - Google Patents

DC motor driven magnetic resonance sickbed system Download PDF

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Publication number
CN117562764B
CN117562764B CN202311644498.0A CN202311644498A CN117562764B CN 117562764 B CN117562764 B CN 117562764B CN 202311644498 A CN202311644498 A CN 202311644498A CN 117562764 B CN117562764 B CN 117562764B
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CN
China
Prior art keywords
seat
bed
supporting
fixed
supporting seat
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Application number
CN202311644498.0A
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Chinese (zh)
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CN117562764A (en
Inventor
罗旭东
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Huizhou Lingsheng Medical Technology Co ltd
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Huizhou Lingsheng Medical Technology Co ltd
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Priority to CN202311644498.0A priority Critical patent/CN117562764B/en
Publication of CN117562764A publication Critical patent/CN117562764A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00Operating tables; Auxiliary appliances therefor
    • A61G13/02Adjustable operating tables; Controls therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055Detecting, 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00Operating tables; Auxiliary appliances therefor
    • A61G13/02Adjustable operating tables; Controls therefor
    • A61G13/06Adjustable operating tables; Controls therefor raising or lowering of the whole table surface
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00Operating tables; Auxiliary appliances therefor
    • A61G13/10Parts, details or accessories
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2200/00Information related to the kind of patient or his position
    • A61G2200/30Specific positions of the patient
    • A61G2200/32Specific positions of the patient lying
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00General characteristics of devices
    • A61G2203/10General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00General characteristics of devices
    • A61G2203/70General characteristics of devices with special adaptations, e.g. for safety or comfort
    • A61G2203/72General characteristics of devices with special adaptations, e.g. for safety or comfort for collision prevention
    • A61G2203/723Impact absorbing means, e.g. bumpers or airbags

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

The invention discloses a magnetic resonance sickbed system driven by a direct current motor, wherein the direct current motor drives a screw rod between two groups of guide rails to rotate through a driving mechanism, and the driving mechanism also plays a role in supporting the screw rod to prevent the screw rod from bending deformation; the movable supporting seat mechanism realizes the horizontal support of the bed board; the direct current motor drives the screw rod between the two groups of guide rails to rotate through the driving mechanism, and the driving mechanism also plays a role in supporting the screw rod to prevent the screw rod from bending deformation; the polished rods at the rear parts of the two ends of the movable supporting seat mechanism penetrate through the limiting plates fixed at the outer sides of the rear parts of the guide rails and then extend into the cylinder body, the polished rods are used for horizontally supporting the movable supporting seat mechanism to move forwards and backwards, and when the screw rod drives the movable supporting seat mechanism to move backwards, the gas in the cylinder body is pressed into the air bags at the front ends of the limiting plates through the polished rods, so that the air bags are contacted with the movable supporting seat mechanism after being expanded, and a buffer effect for the backward movement of the movable supporting seat mechanism is achieved.

Description

DC motor driven magnetic resonance sickbed system
Technical Field
The invention relates to the technical field of medical equipment, in particular to a magnetic resonance sickbed system driven by a direct current motor.
Background
Nuclear magnetic resonance imaging, NMRI for short, is to detect the emitted electromagnetic wave by using the external gradient magnetic field according to the different attenuation of the released energy in different structural environments inside the material by nuclear magnetic resonance, so as to obtain the position and type of the nuclei constituting the object, and thus, the structural image inside the object can be drawn. When the magnetic resonance sickbed system is used, a patient lies on the magnetic resonance sickbed, after the patient is lifted, the bed plate on the magnetic resonance sickbed is driven to move backwards, so that the patient enters the nuclear magnetic resonance instrument, a motor is usually adopted to drive a screw rod to rotate, the bed plate is driven to move forwards and backwards, the movement of the bed plate is possibly unsmooth due to the weight of the patient, the screw rod is further bent and deformed, the magnetic resonance sickbed is damaged, and after the bed plate moves backwards, the patient cannot be stably stopped due to the inertia effect, the bed plate cannot be supported by the magnetic resonance sickbed, the bed plate is inclined under the gravity effect of the weight of the patient, and the magnetic resonance sickbed system is safe.
Disclosure of Invention
The invention aims to provide a magnetic resonance sickbed system driven by a direct current motor so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the magnetic resonance sickbed system driven by the direct current motor comprises a magnetic resonance sickbed main body, wherein the magnetic resonance sickbed main body comprises a bed body seat and a bed plate which is connected with the upper end of the bed body seat in a sliding way, first supporting wheels which are supported in the upper end of the bed body seat are arranged at the front and rear lower ends of the magnetic resonance sickbed main body, two groups of guide rails which are arranged in parallel are fixed in the upper end of the bed body seat in a centering way, and sliding grooves at the bottoms of the two ends of the bed plate are connected with the two groups of guide rails in a sliding way;
the direct current motor positioned between the two groups of guide rails is fixed in the upper end of the bed body seat and drives the screw rods between the two groups of guide rails to rotate through the driving mechanism, and the driving mechanism also plays a role in supporting the screw rods to prevent the screw rods from bending and deforming;
the screw rod penetrates through a movable supporting seat mechanism for fixing the bed plate, two ends of the screw rod penetrate through a guide rail and then are supported on side wall inclined planes in the upper end of the bed body seat, and the bottoms of the two ends of the movable supporting seat mechanism are also supported on the upper end of the bed body seat, so that the horizontal support of the bed plate is realized;
the polished rods at the rear parts of the two ends of the movable supporting seat mechanism penetrate through the limiting plates fixed at the outer sides of the rear parts of the guide rails and then extend into the cylinder body, the polished rods are used for horizontally supporting the movable supporting seat mechanism in a forward and backward mode, and when the screw rod drives the movable supporting seat mechanism to move backwards, gas in the cylinder body is pressed into the air bags at the front ends of the limiting plates through the polished rods, so that the air bags are contacted with the movable supporting seat mechanism after being expanded, and a buffer effect on the backward movement of the movable supporting seat mechanism is achieved;
The back part of the side wall inclined plane is connected with a supporting mechanism supported at the lower end of the back part of the bed board in a sliding way, and the supporting mechanism plays a role in supporting the back part of the bed board when the bed board moves backwards so that the first supporting wheel at the back part of the bed board is separated from the bed body seat.
Preferably, the driving mechanism comprises a mounting seat fixed between two groups of guide rails, a circular annular gear fixed at the front end of the mounting seat, a driving gear positioned in the middle of the circular annular gear, and a plurality of groups of supporting gears which are distributed at equal intervals and are meshed with the sides of the driving gear, and the sides of the supporting gears are meshed with the inner wall of the circular annular gear;
the rotating shaft of the rear output end of the direct current motor is fixed in the middle of the front end of the driving gear, and the front end of the screw rod penetrates through the round hole in the middle of the mounting seat and is then fixed in the middle of the rear end of the driving gear.
Preferably, the movable supporting seat mechanism comprises a movable seat, a sliding block, a fixed seat and an inclined supporting plate, wherein the movable seat is in sliding connection between two groups of guide rails, the sliding block is in sliding connection with a horizontal groove on the guide rails, the fixed seat is fixed after the outer side end of the sliding block penetrates through the horizontal groove, and the inclined supporting plate is fixed at the outer side end of the fixed seat;
The middle part of the bed board is fixed at the tops of the movable seat and the fixed seat through bolts, the tops of the movable seat and the fixed seat are flush, and the top of the movable seat is higher than the top of the guide rail.
Preferably, the cylinder body is fixed in the upper end of the rear end of the bed body seat, a piston is arranged in the cylinder body, and the rear end of the polished rod extends into the cylinder body and is connected to the middle part of the front end of the piston; the inner side of the rear part of the cylinder body is connected with an air duct, and the front end of the air duct penetrates through the limiting plate and then is communicated with the air bag.
Preferably, the rear part of the side wall inclined plane is provided with a horizontal chute and is communicated with a limit groove in the side wall inclined plane;
The supporting mechanism comprises a supporting seat which is in sliding connection with the horizontal sliding chute and a sliding seat which is in sliding connection with the limiting chute, and the inner side end of the supporting seat is fixed with the sliding seat;
the upper roller is installed to the upper portion inboard end of sliding seat, and it supports on the inside wall of spacing groove, the lower roller is installed to the lower part outside end of sliding seat, and it supports on the lateral wall of spacing groove, the second supporting wheel is installed to the inboard end bottom of supporting seat, and it supports at the inside upper end surface of bed body seat.
The lower end of the rear part of the groove in the middle of the lower end of the bed board is provided with a front clamping plate and a rear clamping plate, and the supporting seat is clamped in the front clamping plate and the rear clamping plate.
Compared with the prior art, the invention has the beneficial effects that: the direct current motor drives the screw rod between the two groups of guide rails to rotate through the driving mechanism, and the driving mechanism also plays a role in supporting the screw rod to prevent the screw rod from bending deformation; the two ends of the movable supporting seat mechanism penetrate through the guide rail and then are supported on the side wall inclined planes in the upper end of the bed body seat, and the bottoms of the two ends of the movable supporting seat mechanism are also supported on the upper end of the bed body seat, so that the horizontal support of the bed board is realized; the polished rods at the rear parts of the two ends of the movable supporting seat mechanism penetrate through the limiting plates fixed at the outer sides of the rear parts of the guide rails and then extend into the cylinder body, the polished rods are used for horizontally supporting the movable supporting seat mechanism to move forwards and backwards, and when the screw rod drives the movable supporting seat mechanism to move backwards, the gas in the cylinder body is pressed into the air bags at the front ends of the limiting plates through the polished rods, so that the air bags are contacted with the movable supporting seat mechanism after being expanded, and a buffer effect for the backward movement of the movable supporting seat mechanism is achieved.
The back part of the side wall inclined plane is connected with the supporting mechanism supported at the lower end of the back part of the bed board in a sliding way, and the supporting mechanism plays a role in supporting the back part of the bed board when the bed board moves backwards to enable the first supporting wheel at the back part of the bed board to be separated from the bed body seat, so that the back part of the bed board is effectively prevented from tilting under the action of the gravity of the weight of a patient after the bed board moves backwards, and the safety is improved.
Drawings
FIG. 1 is a schematic diagram of the position structure of the nuclear magnetic resonance apparatus and the magnetic resonance sickbed main body of the present invention;
FIG. 2 is a schematic perspective view of the driving mechanism, the movable supporting seat mechanism and the supporting mechanism of the present invention;
FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2 at A-A in accordance with the present invention;
FIG. 4 is a schematic cross-sectional view of the drive mechanism of the present invention;
FIG. 5 is a schematic view of an exploded construction of the cushion and deck connection of the present invention;
fig. 6 is a schematic perspective view of a magnetic resonance sickbed main body according to the present invention;
FIG. 7 is a schematic cross-sectional view of the connection of the support mechanism and the bed base of the present invention;
FIG. 8 is a schematic side view of the connection of the bed deck and the support base of the present invention;
Fig. 9 is a schematic view of the bottom perspective structure of the bed board of the present invention.
In the figure: 1. a nuclear magnetic resonance apparatus; 2. a magnetic resonance hospital bed main body; 21. a soft cushion; 22. a bed board; 221. a mounting groove; 222. a bolt; 223. a chute; 224. a first support wheel; 225. a groove; 226. a clamping plate; 23. soft protective backing plate; 24. a guide rail; 241. a horizontal slot; 25. a bed body seat; 26. a liftable base; 27. a step; 28. a sidewall slope; 29. a DC motor; 30. a driving mechanism; 31. a mounting base; 301. a connecting plate; 302. a circular ring gear; 303. a drive gear; 304. a support gear; 32. a movable support seat mechanism; 321. a movable seat; 322. a fixing seat; 323. a first moving wheel; 324. a second moving wheel; 325. a slide block; 326. an inclined support plate; 33. a limiting plate; 34. a support mechanism; 341. a support base; 342. a second support wheel; 343. a sliding seat; 344. a lower roller; 345. an upper roller; 35. an air bag; 36. a polish rod; 37. a cylinder; 38. an air duct; 39. a bearing seat; 40. a screw rod; 41. a horizontal chute; 42. a rotating shaft; 43. and a limit groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution:
Examples
The utility model provides a direct current motor driven magnetic resonance sick bed system, includes magnetic resonance sick bed main part 2, magnetic resonance sick bed main part 2 includes bed body seat 25 and the inside bed board 22 that connects that slides of bed body seat 25 upper end, and the upper end left and right sides of bed body seat 25 still is equipped with soft protection backing plate 23. The upper end of the bed plate 22 is provided with a mounting groove 221 for mounting the cushion 21.
The front and rear lower ends of the bed plate 22 are respectively provided with a first supporting wheel 224 which is supported in the upper end of the bed body seat 25, two groups of parallel guide rails 24 are centrally fixed in the upper end of the bed body seat 25, and sliding grooves 223 at the bottoms of the two ends of the bed plate 22 are slidably connected with the two groups of guide rails 24;
The middle parts of the front end and the rear end of the bed plate 22 are provided with protruding seats, the sliding chute 223 is arranged in the middle of the lower ends of the protruding seats, and the first supporting wheels 224 are fixed at the lower ends of the protruding seats.
The inside of the upper end of the bed body seat 25 is also fixed with a direct current motor 29 positioned between the two groups of guide rails 24, the direct current motor drives a lead screw 40 between the two groups of guide rails 24 to rotate through a driving mechanism 30, and the driving mechanism 30 also plays a role in supporting the lead screw 40 to prevent the lead screw 40 from bending deformation;
A bearing seat 39 is fixed between the rear ends of the two sets of guide rails 24, and the rear ends of the lead screws 40 extend into bearings inside the bearing seat 39.
The driving mechanism 30 comprises a mounting seat 31 fixed between two groups of guide rails 24, a circular annular gear 302 fixed at the front end of the mounting seat 31, a driving gear 303 positioned in the middle of the circular annular gear 302, and a plurality of groups of supporting gears 304 which are distributed at equal intervals and are meshed with the side edges of the driving gear 303, and the side edges of the supporting gears 304 are meshed with the inner wall of the circular annular gear 302;
The left side and the right side of the circular annular gear 302 are fixedly connected with the inner wall of the corresponding guide rail 24 through connecting plates 301.
The rotating shaft 42 at the rear output end of the dc motor 29 is fixed at the middle part of the front end of the driving gear 303, and the front end of the screw 40 penetrates through the circular hole in the middle part of the mounting seat 31 and is fixed at the middle part of the rear end of the driving gear 303.
The screw 40 penetrates through a movable supporting seat mechanism 32 for fixing the bed plate 22, two ends of the screw penetrate through the guide rail 24 and then are supported on the side wall inclined surface 28 in the upper end of the bed body seat 25, and the bottoms of two ends of the movable supporting seat mechanism 32 are also supported on the upper end of the bed body seat 25, so that the bed plate 22 is horizontally supported;
The movable supporting seat mechanism 32 comprises a movable seat 321 slidably connected between the two sets of guide rails 24, a sliding block 325 slidably connected in a horizontal groove 241 on the guide rails 24, a fixed seat 322 fixed after the outer side end of the sliding block 325 penetrates through the horizontal groove 241, and an inclined supporting plate 326 fixed at the outer side end of the fixed seat 322;
The middle part of the bed plate 22 is fixed at the tops of the movable seat 321 and the fixed seat 322 through bolts 222, the tops of the movable seat 321 and the fixed seat 322 are flush, and the top height of the movable seat is higher than that of the guide rail 24.
The lower end of the fixed seat 322 is provided with a first moving wheel 323 which is supported on the upper surface of the interior of the bed seat 25, and a second moving wheel 324 which is supported on the side wall inclined plane 28 is movably connected in a slot in the middle of the inclined support plate 326.
The polish rods 36 at the rear parts of the two ends of the movable supporting seat mechanism 32 penetrate through the limit plates 33 fixed at the outer sides of the rear parts of the guide rails 24 and then extend into the cylinder 37, the polish rods 36 are used for realizing horizontal support on the front and rear movement of the movable supporting seat mechanism 32, and when the screw rod 40 drives the movable supporting seat mechanism 32 to move backwards, gas in the cylinder 37 is pressed into the air bags 35 at the front ends of the limit plates 33 through the polish rods 36, so that the air bags 35 are contacted with the movable supporting seat mechanism 32 after being expanded, and the buffer effect on the rear movement of the movable supporting seat mechanism 32 is achieved;
The cylinder 37 is fixed in the upper end of the rear end of the bed seat 25, a piston is arranged in the cylinder, and the rear end of the polish rod 36 extends into the cylinder 37 and is connected to the middle part of the front end of the piston; the inner side of the rear part of the cylinder 37 is connected with an air duct 38, and the front end of the air duct passes through the limiting plate 33 and then is communicated with the air bag 35.
The rear part of the side wall inclined surface 28 is connected with a supporting mechanism 34 supported at the lower end of the rear part of the bed plate 22 in a sliding way, and the supporting mechanism plays a role in supporting the rear part of the bed plate 22 when the bed plate 22 moves backwards so that the first supporting wheels 224 at the rear part of the bed plate 22 are separated from the bed body seat 25.
The rear part of the side wall inclined surface 28 is provided with a horizontal chute 41 which is communicated with a limit groove 43 in the side wall inclined surface 28;
The supporting mechanism 34 includes a supporting seat 341 slidably connected in the horizontal chute 41 and a sliding seat 343 slidably connected in the limiting slot 43, and an inner side end of the supporting seat 341 is fixed with the sliding seat 343;
An upper roller 345 is mounted at the inner side of the upper portion of the sliding seat 343 and is supported on the inner side wall of the limit groove 43, a lower roller 344 is mounted at the outer side of the lower portion of the sliding seat 343 and is supported on the outer side wall of the limit groove 43, and a second supporting wheel 342 is mounted at the bottom of the inner side of the supporting seat 341 and is supported on the inner upper end surface of the bed seat 25.
The lower end of the rear part of the groove 225 in the middle of the lower end of the bed plate 22 is provided with a front group of clamping plates 226 and a rear group of clamping plates 226, and the supporting seat 341 is clamped in the front group of clamping plates 226 and the rear group of clamping plates 226.
The nuclear magnetic resonance apparatus 1 is arranged at the rear part of the magnetic resonance sickbed main body 2, the magnetic resonance sickbed main body 2 further comprises a liftable base 26 fixed at the bottom of a bed body seat 25, the liftable base 26 is driven by an electric telescopic rod vertically arranged in the magnetic resonance sickbed main body to lift the bed body seat 25, a step 27 is further arranged on one side of the liftable base 26 and is used for facilitating a patient to lie on a soft cushion 21 of the bed body seat 25 after the bed body seat 25 is lowered to the lowest height.
Specifically, when in use, a patient lies on the soft cushion 21 of the bed seat 25, then the liftable base 26 is lifted to enable the bed seat 25 to be lifted to a proper position, and then the direct current motor 29 drives the bed plate 22 in the bed seat 25 to move backwards until the patient enters the nuclear magnetic resonance apparatus 1;
The direct current motor 29 drives the driving gear 303 to rotate through the rotating shaft 42, so that the lead screw 40 rotates, and the lead screw 40 penetrates through the movable seat 321, so that when the lead screw 40 rotates positively and negatively, the movable supporting seat mechanism 32 is driven to drive the bed plate 22 in the bed body seat 25 to move forwards and backwards through the cooperation of the lead screw 40 and the internal threads in the movable seat 321;
Because the side edges of the driving gear 303 are meshed with a plurality of groups of supporting gears 304 which are distributed at equal intervals, and the side edges of the supporting gears 304 are meshed with the inner wall of the circular annular gear 302, stable supporting of the driving gear 303 can be realized, so that bending deformation of the screw 40 is prevented from being caused under the action of instant large torque of the direct current motor 29 on the screw 40 when the direct current motor 29 drives the screw 40 to rotate through the driving gear 303, and the screw 40 drives the movable supporting seat mechanism 32 more smoothly;
Since the moving base 321 is slidably connected between the two sets of guide rails 24, the sliding block 325 is slidably connected in the horizontal groove 241 on the guide rails 24, the first moving wheel 323 at the lower end of the fixed base 322 is supported on the upper surface of the inside of the bed base 25, and the second moving wheel 324 in the middle of the inclined support plate 326 is supported on the side wall inclined surface 28. Therefore, the movable supporting seat mechanism 32 can be supported more comprehensively, the movable supporting seat mechanism 32 is supported horizontally, the movable supporting seat mechanism 32 moves forward and backward more smoothly, and after the bed plate 22 is fixed at the upper end of the movable supporting seat mechanism 32, the pressure can not be caused on the screw rod 40, so that the screw rod 40 is prevented from being bent under pressure.
And simultaneously, the polished rods 36 at the rear parts of the two ends of the movable supporting seat mechanism 32 penetrate through the limiting plates 33 fixed at the outer sides of the rear parts of the guide rails 24, so that the arrangement that the polished rods 36 penetrate through the limiting plates 33 further ensures that the movable supporting seat mechanism 32 cannot deviate when the movable supporting seat mechanism 32 moves forwards and backwards, and the movable supporting seat mechanism 32 and the bed plate 22 at the upper end of the movable supporting seat mechanism move smoothly.
When the movable supporting seat mechanism 32 and the bed plate 22 at the upper end of the movable supporting seat mechanism move backwards, the polish rod 36 pushes the piston to move backwards, gas in the cylinder 37 is introduced into the air bag 35 through the gas guide pipe 38, so that the air bag 35 is inflated, the air bag 35 is firstly contacted with the movable supporting seat mechanism 32 after the movable supporting seat mechanism 32 is gradually close to the limiting plate 33, the buffer effect on the backward movement of the movable supporting seat mechanism 32 is achieved, at the moment, the work of the direct current motor 29 is stopped, the movable supporting seat mechanism 32 is slowly decelerated until the direct current motor 29 is stopped, and uncomfortable feeling caused by that a patient still moves backwards due to inertia when the direct current motor 29 is stopped is avoided;
because the lower end of the bed plate 22 is supported at the upper end of the supporting seat 341, the patient can have a downward pressure on the supporting seat 341 after lying on the bed plate 22, and at this time, the supporting seat 341 is kept in a horizontal state by the arrangement of the second supporting wheels 342;
Meanwhile, when the bed plate 22 presses down the supporting seat 341, the sliding seat 343 is driven to incline, and at this time, the sliding seat 343 is prevented from inclining by the arrangement that the upper roller 345 is supported on the inner side wall of the limiting groove 43 and the lower roller 344 is supported on the outer side wall of the limiting groove 43, so that the supporting seat 341 is further ensured to keep a horizontal state;
Because the supporting seat 341 is clamped in the front and rear two groups of clamping plates 226 at the lower end of the bed plate 22, when the bed plate 22 moves backwards, the supporting seat 341 and the sliding seat 343 move backwards along the horizontal groove 41 and the limiting groove 43 respectively, and at the moment, the supporting seat 341 and the sliding seat 343 can move backwards more smoothly through the arrangement of the upper roller 345, the lower roller 344 and the second supporting wheel 342;
when the bed plate 22 moves backward, the first supporting wheel 224 at the bottom of the rear end of the bed plate 22 is separated from the bed body seat 25, so that the first supporting wheel 224 at the bottom of the rear end of the bed plate 22 does not play a supporting role on the rear part of the bed plate 22, and the rear part of the bed plate 22 can incline under the action of the weight of a patient, but at this time, the supporting seat 341 and the sliding seat 343 can move backward along with the bed plate 22, at this time, the upper roller 345 is supported on the inner side wall of the limiting groove 43, the lower roller 344 is supported on the outer side wall of the limiting groove 43, and the second supporting wheel 342 is supported on the upper end surface inside the bed body seat 25, thus realizing the supporting role on the rear part of the bed plate 22, effectively preventing the rear part of the bed plate 22 from inclining under the action of the weight of the patient, and improving the safety.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A dc motor driven magnetic resonance patient bed system comprising a magnetic resonance patient bed body, characterized in that: the magnetic resonance sickbed main body comprises a bed body seat and a bed plate sliding in the upper end of the bed body seat, wherein the front lower end and the rear lower end of the bed plate are respectively provided with a first supporting wheel supported in the upper end of the bed body seat, two groups of guide rails arranged in parallel are fixed in the upper end of the bed body seat in a centering manner, and sliding grooves at the bottoms of the two ends of the bed plate are in sliding connection with the two groups of guide rails;
the direct current motor positioned between the two groups of guide rails is fixed in the upper end of the bed body seat and drives the screw rods between the two groups of guide rails to rotate through the driving mechanism, and the driving mechanism also plays a role in supporting the screw rods to prevent the screw rods from bending and deforming;
the screw rod penetrates through a movable supporting seat mechanism for fixing the bed plate, two ends of the screw rod penetrate through a guide rail and then are supported on side wall inclined planes in the upper end of the bed body seat, and the bottoms of the two ends of the movable supporting seat mechanism are also supported on the upper end of the bed body seat, so that the horizontal support of the bed plate is realized;
the polished rods at the rear parts of the two ends of the movable supporting seat mechanism penetrate through the limiting plates fixed at the outer sides of the rear parts of the guide rails and then extend into the cylinder body, the polished rods are used for horizontally supporting the movable supporting seat mechanism in a forward and backward mode, and when the screw rod drives the movable supporting seat mechanism to move backwards, gas in the cylinder body is pressed into the air bags at the front ends of the limiting plates through the polished rods, so that the air bags are contacted with the movable supporting seat mechanism after being expanded, and a buffer effect on the backward movement of the movable supporting seat mechanism is achieved;
the back part of the side wall inclined plane is connected with a supporting mechanism supported at the lower end of the back part of the bed board in a sliding way, and the supporting mechanism plays a role in supporting the back part of the bed board when the bed board moves backwards so that a first supporting wheel at the back part of the bed board is separated from a bed body seat;
The driving mechanism comprises a mounting seat fixed between two groups of guide rails, a circular annular gear fixed at the front end of the mounting seat, a driving gear positioned in the middle of the circular annular gear, and a plurality of groups of supporting gears which are distributed at equal intervals and are meshed with the sides of the driving gear, and the sides of the supporting gears are meshed with the inner wall of the circular annular gear;
The rotating shaft of the rear output end of the direct current motor is fixed in the middle of the front end of the driving gear, and the front end of the screw rod penetrates through a round hole in the middle of the mounting seat and is then fixed in the middle of the rear end of the driving gear; the movable supporting seat mechanism comprises a movable seat, a sliding block, a fixed seat and an inclined supporting plate, wherein the movable seat is in sliding connection between two groups of guide rails, the sliding block is in sliding connection with a horizontal groove on the guide rails, the outer side end of the sliding block penetrates through the horizontal groove and then is fixed, and the inclined supporting plate is fixed at the outer side end of the fixed seat;
The middle part of the bed board is fixed at the tops of the movable seat and the fixed seat through bolts, the tops of the movable seat and the fixed seat are flush, and the top height of the movable seat is higher than that of the guide rail; the lower extreme of fixing base is installed and is removed the round, and it supports the inside upper end surface of bed body seat, the fluting of sloping support plate middle part is interior swing joint has the second to remove the round, and it supports on the lateral wall inclined plane.
2. A dc motor driven magnetic resonance patient bed system according to claim 1, wherein: the cylinder body is fixed in the upper end of the rear end of the bed body seat, a piston is arranged in the cylinder body, and the rear end of the polished rod extends into the cylinder body and is connected to the middle part of the front end of the piston; the inner side of the rear part of the cylinder body is connected with an air duct, and the front end of the air duct penetrates through the limiting plate and then is communicated with the air bag.
3. A dc motor driven magnetic resonance patient bed system according to claim 1, wherein: the rear part of the side wall inclined plane is provided with a horizontal chute and is communicated with a limit groove in the side wall inclined plane;
The supporting mechanism comprises a supporting seat which is in sliding connection with the horizontal sliding chute and a sliding seat which is in sliding connection with the limiting chute, and the inner side end of the supporting seat is fixed with the sliding seat;
the upper roller is installed to the upper portion inboard end of sliding seat, and it supports on the inside wall of spacing groove, the lower roller is installed to the lower part outside end of sliding seat, and it supports on the lateral wall of spacing groove, the second supporting wheel is installed to the inboard end bottom of supporting seat, and it supports at the inside upper end surface of bed body seat.
4. A dc motor driven magnetic resonance patient bed system according to claim 3, wherein: the lower end of the rear part of the groove in the middle of the lower end of the bed board is provided with a front clamping plate and a rear clamping plate, and the supporting seat is clamped in the front clamping plate and the rear clamping plate.
5. A dc motor driven magnetic resonance patient bed system according to claim 4, wherein: the middle parts of the front end and the rear end of the bed board are provided with protruding seats, the sliding grooves are formed in the middle parts of the lower ends of the protruding seats, the first supporting wheels are fixed at the lower ends of the protruding seats, and the upper end of the bed board is provided with mounting grooves for mounting soft cushions.
CN202311644498.0A 2023-12-04 2023-12-04 DC motor driven magnetic resonance sickbed system Active CN117562764B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101015452A (en) * 2006-11-29 2007-08-15 新奥博为技术有限公司 3-D motion electric sick bed system for permanent-magnet open type magnetic resonance apparatus
CN101822598A (en) * 2009-03-02 2010-09-08 深圳迈瑞生物医疗电子股份有限公司 Electric control sickbed
KR101027075B1 (en) * 2010-05-03 2011-04-05 김우진 Hospital moving bed for patients
CN211022667U (en) * 2019-08-14 2020-07-17 内蒙古医科大学附属医院 Nuclear magnetic resonance equipment who easily lies
CN112022158A (en) * 2020-06-05 2020-12-04 郭永榜 Nuclear magnetic resonance examining table
CN112022557A (en) * 2020-08-21 2020-12-04 西安交通大学第二附属医院 Multifunctional rehabilitation nursing sickbed
CN114343947A (en) * 2022-02-21 2022-04-15 沭阳县中医院 Cervical vertebra traction bed for medical orthopedic patient

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101015452A (en) * 2006-11-29 2007-08-15 新奥博为技术有限公司 3-D motion electric sick bed system for permanent-magnet open type magnetic resonance apparatus
CN101822598A (en) * 2009-03-02 2010-09-08 深圳迈瑞生物医疗电子股份有限公司 Electric control sickbed
KR101027075B1 (en) * 2010-05-03 2011-04-05 김우진 Hospital moving bed for patients
CN211022667U (en) * 2019-08-14 2020-07-17 内蒙古医科大学附属医院 Nuclear magnetic resonance equipment who easily lies
CN112022158A (en) * 2020-06-05 2020-12-04 郭永榜 Nuclear magnetic resonance examining table
CN112022557A (en) * 2020-08-21 2020-12-04 西安交通大学第二附属医院 Multifunctional rehabilitation nursing sickbed
CN114343947A (en) * 2022-02-21 2022-04-15 沭阳县中医院 Cervical vertebra traction bed for medical orthopedic patient

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