CN105662768A - Scanning table capable of vertically lifting - Google Patents

Scanning table capable of vertically lifting Download PDF

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Publication number
CN105662768A
CN105662768A CN201610155571.1A CN201610155571A CN105662768A CN 105662768 A CN105662768 A CN 105662768A CN 201610155571 A CN201610155571 A CN 201610155571A CN 105662768 A CN105662768 A CN 105662768A
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CN
China
Prior art keywords
rotating shaft
hinged
rotary shaft
scanning bed
base
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Granted
Application number
CN201610155571.1A
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Chinese (zh)
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CN105662768B (en
Inventor
潘险峰
陶丰盛
于晓丰
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Chongqing Mingfeng Medical Equipment Co., Ltd
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FMI Technologies Inc
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Priority to CN201610155571.1A priority Critical patent/CN105662768B/en
Publication of CN105662768A publication Critical patent/CN105662768A/en
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Publication of CN105662768B publication Critical patent/CN105662768B/en
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Classifications

    • 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
    • A61G13/0018Physician's examining tables
    • 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
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/04Positioning of patients; Tiltable beds or the like
    • A61B6/0407Supports, e.g. tables or beds, for the body or parts of the body
    • 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
    • A61G2200/00Information related to the kind of patient or his position
    • A61G2200/30Specific positions of the patient
    • A61G2200/32Specific positions of the patient lying

Abstract

The invention relates to a scanning table capable of vertically lifting. A vertical lifting device and a base are sequentially arranged under the scanning table; the vertical lifting device comprises a cross beam which is parallel to the scanning table and the base; two end parts of the cross beam are respectively provided with a front rotating shaft and a rear rotating shaft; a first rotating assembly and a second rotating assembly of which the upper end parts and the lower end parts are respectively hinged to the scanning table and the base are arranged in parallel by taking the front rotating shaft and the rear rotating shaft as hinge points; the cross beam is provided with a guide rail which is matched with a sliding block and a sliding block rotating shaft; an upper supporting arm is arranged between the sliding block rotating shaft and the upper end part of the first rotating assembly in a hinging way; a lower supporting arm is arranged between the sliding block rotating shaft and the lower end part of the first rotating assembly in the hinging way; the vertical lifting mechanism also comprises a driving mechanism. According to the scanning table disclosed by the invention, the scanning table can be put down on the premise that the position of the scanning table in the horizontal direction is not changed, the vertical height of the scanning table is changed, the gravity center is always in the same vertical line, the deformation consistency is good, the rigidity of the vertical lifting device is good, the lifting speed is fast, structure change is simple, the working efficiency is high, the reliability is good, the imaging quality of an image in the later period is high, and the cost is low.

Description

A kind of can VTOL (vertical take off and landing) scanning bed
Technical field
The invention belongs to the location of patient; The technical field of tiltable bed or its analogue, in particular to a kind of ensure lifting to during different positions in the horizontal direction position remains unchanged, distortion amount consistence is good can VTOL (vertical take off and landing) scanning bed.
Background technology
Along with the popularization and application of the diagnositc equipments such as CT, MRI, PET in medical procedures, owing to the situation of sufferer is different, for scanning bed user demand, particularly the requirement of height is also more changeable and strict, in order to the needs diagnosed, scanning bed bottom all can arrange the hoisting appliance for controlling height change, with the requirement of satisfied different patient's bunk bed and scanning.
In prior art, the main lifting device adopting parallelogram sturcutre and scissors to pitch structure (comprising two scissors fork structure) completes scanning bed lift work.
Adopt parallelogram sturcutre lifting device complete scanning bed lift work as the patent No. be 200810228504.3 Chinese patent " a kind of scanning bed lifting structure ", its main Problems existing comprises:
(1), when the lifting device lifting of parallelogram sturcutre is to different positions, scanning bed position in the horizontal direction can change, and affects sweep limit and controls loaded down with trivial details;
(2) the lifting device poor rigidity of parallelogram sturcutre, rearward, stability is poor for center of gravity, and horizontal bedstead is outstanding to be stretched greatly, and distortion amount is big;
(3) the lifting device rising or falling speed of parallelogram sturcutre is low, and motor working efficiency is low.
Adopt the lifting device of scissors fork structure (comprise two scissors fork structure) complete scanning bed lift work as the patent No. be 201310529296.1 Chinese patent " a kind of telescoping support structure and sick bed hoisting appliance ", its main Problems existing comprises:
(1), when the lifting device lifting of scissors fork structure (comprising two scissors fork structure) is to different positions, the span supporting mechanism changes, and the distortion amount of different heights changes greatly, and subsequent correction algorithm is complicated, the picture quality of impact detection;
(2) lifting device structure of scissors fork structure (comprising two scissors fork structure) is complicated, need to adopt many secondary guide rail mechanisms, it relates to slide block is many, it is necessary to lead screw transmission, assembling trouble, and manufacturability is poor, poor reliability, cost height;
(3) drive the arm of force little when the lifting device of scissors fork structure (comprising two scissors fork structure) arrives extreme lower position, it is necessary to Motor torque is big, machine operation is proposed high requirement, inefficiency.
Summary of the invention
The technical problem that the present invention solves is, in prior art, the main lifting device adopting parallelogram sturcutre and scissors to pitch structure (comprising two scissors fork structure) completes scanning bed lift work, and the lifting that cannot take into account caused to keeping during different positions, level attitude is constant and the demand of the consistence of distortion amount, existence and stability is poor in varying degrees, poor rigidity, rising or falling speed is low, motor working efficiency is low, picture quality is unstable, assembling trouble, manufacturability is poor, complex structure and the high problem of cost, and then provide a kind of optimize structure can VTOL (vertical take off and landing) scanning bed.
The technical solution adopted in the present invention is, a kind of can VTOL (vertical take off and landing) scanning bed, described scanning bed under be provided with vertical lift device and base in turn, described vertical lift device comprises and is parallel to scanning bed and crossbeam that is base, the both ends of described crossbeam are respectively equipped with front rotary shaft and rear rotating shaft, described scanning bed be provided with between base that the first runner assembly and the 2nd runner assembly, the upper and lower end of described first runner assembly and the upper and lower end of the 2nd runner assembly are hinged respectively to be located on scanning bed and base respectively taking front rotary shaft and rear rotating shaft as pin joint is parallel; Described crossbeam is also provided with guide rail, described guide rail coordinates and is provided with slide block, described slide block is provided with slide block rotating shaft, hinged between the upper end of described slide block rotating shaft and the first runner assembly is provided with sway brace, hinged between the bottom of described slide block rotating shaft and the first runner assembly is provided with lower support arm; Described vertical lifting mechanism also comprises driving mechanism.
Preferably, described first runner assembly comprise be located at scanning bed on first on rotating shaft, the first lower rotary shaft being located on base, hinged be located on described front rotary shaft and first first between rotating shaft on swing arm and hinged the first lower swing arm being located between described front rotary shaft and the first lower rotary shaft; Described 2nd runner assembly comprise be located at scanning bed on the 2nd on rotating shaft, the 2nd lower rotary shaft being located on base, hinged be located on described rear rotating shaft and the 2nd the 2nd between rotating shaft on swing arm and hinged the 2nd lower swing arm being located between described rear rotating shaft and the 2nd lower rotary shaft.
Preferably, on described first, distance between the axle center of distance between the axle center of rotating shaft in rotating shaft and the 2nd and front rotary shaft and rear rotating shaft is equal, and the distance between the axle center of the distance between the axle center of described first lower rotary shaft and the 2nd lower rotary shaft and front rotary shaft and rear rotating shaft is equal.
Preferably, described driving mechanism comprises the hinged hinge support in one end and drives push rod, and the other end of described hinge support is hinged to be located on crossbeam, and the other end of described driving push rod is hinged to be located on base.
Preferably, described driving mechanism comprises the hinged hinge support in one end and drives push rod, hinged leading section or the rearward end being located at crossbeam of the other end of described hinge support, corresponding hinged leading section or the rearward end being located at described base of the other end of described driving push rod.
Preferably, described driving mechanism comprises driving push rod, one end of described driving push rod is hinged to be located on described base, the other end of described driving push rod is hinged be located on first rotating shaft or the 2nd on rotating shaft or the first lower rotary shaft or the 2nd lower rotary shaft or upper sway brace or lower support arm.
Preferably, described driving mechanism comprises the motor and screw mandrel that are equipped with, and described leading screw is located at inside described crossbeam, and one end of described leading screw is connected with front rotary shaft, and the cooperation of described screw mandrel is provided with silk mother, and described silk mother is connected with described slide block by nut seat.
Preferably, described motor is horizontal servomotor.
The present invention provide a kind of optimize structure can VTOL (vertical take off and landing) scanning bed, by arranging vertical lift device and base in turn under scanning bed, vertical lift device arranges and is parallel to scanning bed and crossbeam that is base, and the both ends of crossbeam by front rotary shaft and rear rotating shaft scanning bed with base between hinged respectively the first parallel runner assembly and the 2nd runner assembly are set, guide rail is set on crossbeam simultaneously, by the slide block rotating shaft on the slide block that coordinates with guide rail, upper and lower end with the first runner assembly is equipped with upper sway brace and lower support arm respectively, namely movable support is formed with the first runner assembly, coordinate driving mechanism for the driving effect of vertical lifting mechanism, can put down scanning bed under the prerequisite not changing scanning bed position in the horizontal direction, change its vertical height. the present invention's is scanning bed when lifting is to different positions, position in the horizontal direction remains unchanged, center of gravity is on same vertical line all the time, distortion amount consistence is good, the good rigidly of vertical lift device, and rising or falling speed is fast, change structure is simple, working efficiency height and good reliability, the image quality height of later image, cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention 1;
Fig. 2 is the structural representation of embodiments of the invention 2;
Fig. 3 is the structural representation of embodiments of the invention 3
Fig. 4 lifts scanning bed structural representation when being that the upper end of upper sway brace in embodiments of the invention 1 is hinged on first the upper end of swing arm and the bottom of lower support arm is hinged on the bottom of the first lower swing arm;
Fig. 5 puts down scanning bed structural representation when being that the upper end of upper sway brace in embodiments of the invention 1 is hinged on first the upper end of swing arm and the bottom of lower support arm is hinged on the bottom of the first lower swing arm.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but protection scope of the present invention is not limited to this.
As shown in the figure, the present invention relates to a kind of can VTOL (vertical take off and landing) scanning bed, it is provided with vertical lift device and base 2 in turn described scanning bed 1 time, described vertical lift device comprises the crossbeam 3 being parallel to scanning bed 1 and base 2, the both ends of described crossbeam 3 are respectively equipped with front rotary shaft 4 and rear rotating shaft 5, described scanning bed 1 is provided with first runner assembly and two runner assembly with rear rotating shaft 5 as pin joint is parallel taking front rotary shaft 4 respectively with between base 2, the upper and lower end of described first runner assembly and the upper and lower end of the 2nd runner assembly are hinged respectively to be located on scanning bed 1 and base 2, described crossbeam 3 is also provided with guide rail 6, described guide rail 6 coordinates and is provided with slide block 7, described slide block 7 is provided with slide block rotating shaft 8, hinged between the upper end of described slide block rotating shaft 8 and the first runner assembly it is provided with sway brace 9, hinged between the bottom of described slide block rotating shaft 8 and the first runner assembly it is provided with lower support arm 10, described vertical lifting mechanism also comprises driving mechanism.
In the present invention, being provided with vertical lift device and base 2 in turn scanning bed 1 time, wherein base 2 and scanning bed 1 plays the lower support point of vertical lift device and the effect of upper point of suppon respectively.
In the present invention, vertical lift device comprises and is parallel to scanning bed 1 and the crossbeam 3 that arranges of base 2, scanning bed 1 degree can lowerd and lift in the present invention of the cut to lengthen of crossbeam 3.
In the present invention, in scanning bed 1 process lowerd, supporting role completes mainly through the first runner assembly and the 2nd runner assembly, and poising action completes mainly through upper sway brace 9 and lower support arm 10.In the present invention, front rotary shaft 4 and rear rotating shaft 5 are set respectively at the both ends of crossbeam 3, arrange the first parallel runner assembly and the 2nd runner assembly as pin joint taking front rotary shaft 4 and rear rotating shaft 5, two ends of the first runner assembly and the 2nd runner assembly are hinged setting respectively on scanning bed 1 and base 2, crossbeam 3 is provided with guide rail 6, guide rail 6 is equipped with slide block 7, slide block 7 is provided with slide block rotating shaft 8, taking slide block rotating shaft 8 as a wherein pin joint, upper sway brace 9 is set with the upper end coordination hinge of the first runner assembly, lower support arm 10 is set with the bottom coordination hinge of the first runner assembly, namely movable support is formed with the first runner assembly, coordinate driving mechanism for the driving effect of vertical lifting mechanism, scanning bed 1 can be put down under the prerequisite not changing scanning bed 1 position in the horizontal direction, change its vertical height, when the relative distance of slide block 7 with front rotary shaft 4 increases, scanning bed 1 puts down, when the relative distance of slide block 7 with front rotary shaft 4 reduces, scanning bed 1 lifts, and scanning bed 1 position in the horizontal direction constant.
Scanning bed the 1 of the present invention is when lifting is to different positions, position in the horizontal direction remains unchanged, center of gravity is on same vertical line all the time, distortion amount consistence is good, the good rigidly of vertical lift device, and rising or falling speed is fast, change structure is simple, working efficiency height and good reliability, the image quality height of later image, cost is low.
Described first runner assembly comprises rotating shaft 11 on be located on scanning bed 1 first, be located on base 2 the first lower rotary shaft 12, hinged be located on described front rotary shaft 4 and first first between rotating shaft 11 on swing arm 13 and hinged the first lower swing arm 14 being located between described front rotary shaft 4 and the first lower rotary shaft 12; Described 2nd runner assembly comprise be located at rotating shaft 15 on the 2nd on scanning bed 1, the 2nd lower rotary shaft 16 be located on base 2, hinged be located on described rear rotating shaft 5 and the 2nd the 2nd between rotating shaft 15 on swing arm 17 and hinged the 2nd lower swing arm 18 being located between described rear rotating shaft 5 and the 2nd lower rotary shaft 12.
In the present invention, due to lower or raise scanning bed 1 process, first runner assembly and the 2nd runner assembly inherently produce the change of the arm of force, therefore the structure being set on first by the first runner assembly swing arm 13 and the first lower swing arm 14, corresponding with upper sway brace 9 and lower support arm 10, wherein swing arm 13 is articulated with on first on scanning bed 1 between rotating shaft 11 and front rotary shaft 4 on first, first lower swing arm 14 is articulated with the first lower rotary shaft 12 on base 2 and between front rotary shaft 4, simultaneously in order to keep parallel and servo-actuated with the first runner assembly, 2nd runner assembly also is set to comprise the structure of swing arm 17 and the 2nd lower swing arm 18 on the 2nd, wherein swing arm 17 is articulated with on the 2nd on scanning bed 1 between rotating shaft 15 and rear rotating shaft 5 on the 2nd, 2nd lower swing arm 18 is articulated with the 2nd lower rotary shaft 16 on base 2 and between rear rotating shaft 5.
In the present invention, in scanning bed 1 process put down, on first, swing arm 13 and upper sway brace 9 drive rotating shaft 11 on first close relative to crossbeam 3, simultaneously swing arm 17 drives rotating shaft 15 on the 2nd close relative to crossbeam 3 on the 2nd, first lower swing arm 14 and lower support arm 10 drive the first lower rotary shaft 12 close relative to crossbeam 3,2nd lower swing arm 18 drives the 2nd lower rotary shaft 16 close relative to crossbeam 3 simultaneously, and when slide block 7 covers crossbeam 3 stroke, scanning bed 1 position is minimum; In scanning bed 1 process lifted, on first swing arm 13 and upper sway brace 9 drive on first rotating shaft 11 relative to crossbeam 3 away from, simultaneously on the 2nd swing arm 17 drive on the 2nd rotating shaft 15 relative to crossbeam 3 away from, first lower swing arm 14 and lower support arm 10 drive the first lower rotary shaft 12 relative to crossbeam 3 away from, simultaneously the 2nd lower swing arm 18 drive the 2nd lower rotary shaft 16 relative to crossbeam 3 away from, when slide block 7 returns to zero position, scanning bed 1 position is the highest.
In the present invention, above parts are generally arranged on the both sides of scanning bed 1, can also be arranged on below the middle part of scanning bed 1, need the Static and dynamic balance keeping scanning bed 1 when arranging.
In the present invention, scanning bed 1 lower or lifting process in, scanning bed 1 only produces vertical translation, not occurred level displacement.
In the present invention, the upper end thereof of upper sway brace 9 is in the upper end of the first runner assembly, in the application process of reality, the upper end of upper sway brace 9 can be hinged on the upper end of swing arm 13 on first, can also directly be hinged on first rotating shaft 11 place, ensure integrally-built to be simple and easy to group, with reason, the lower end of lower support arm 10 is articulated with the bottom of the first runner assembly, in the application process of reality, the bottom of lower support arm 10 can be hinged on the bottom of the first lower swing arm 14, can also directly be hinged on the first lower rotary shaft 12 place.
On described first, distance between the axle center of distance between the axle center of rotating shaft 15 in rotating shaft 11 and the 2nd and front rotary shaft 4 and rear rotating shaft 5 is equal, and the distance between the axle center of the distance between the axle center of described first lower rotary shaft 12 and the 2nd lower rotary shaft 16 and front rotary shaft 4 and rear rotating shaft 5 is equal.
In the present invention, opposing parallel due to what to be ensured between the first runner assembly and the 2nd runner assembly, and first runner assembly first on swing arm 13 adjust position by rotating shaft 11 on first and front rotary shaft 4, on the 2nd of 2nd runner assembly, swing arm 17 adjusts position by rotating shaft 15 on the 2nd and rear rotating shaft 5, therefore distance between the axle center of distance between the axle center of rotating shaft 15 in rotating shaft 11 and the 2nd on first and front rotary shaft 4 and rear rotating shaft 5 is equal, and the first lower swing arm 14 of the first runner assembly adjusts position by the first lower rotary shaft 12 and front rotary shaft 4, 2nd lower swing arm 18 of the 2nd runner assembly adjusts position by the 2nd lower rotary shaft 16 and rear rotating shaft 5, therefore distance between the axle center of distance between the axle center of the first lower rotary shaft 12 and the 2nd lower rotary shaft 16 and front rotary shaft 4 and rear rotating shaft 5 is equal, now keep opposing parallel between the first runner assembly and the 2nd runner assembly.
In the present invention, the setting of driving mechanism comprises at least 3 kinds of embodiments.
Embodiment 1:
Described driving mechanism comprises the hinged hinge support in one end 19 and drives push rod 20, and the other end of described hinge support 19 is hinged to be located on crossbeam 3, and the other end of described driving push rod 20 is hinged to be located on base 2.
Described driving mechanism comprises the hinged hinge support in one end 19 and drives push rod 20, hinged leading section or the rearward end being located at crossbeam 3 of the other end of described hinge support 19, corresponding hinged leading section or the rearward end being located at described base 2 of the other end of described driving push rod 20.
In the present embodiment, driving mechanism comprises hinge support 19 and drives push rod 20, hinge support 19 and driving push rod 20 are at one end hinged, the hinged optional position being located on crossbeam 3 of the other end of hinge support 19, drive the corresponding hinged optional position being located at base 2 of the other end of push rod 20. When driving mechanism works, hinge support 19 is as swivel arm, circumferential motion is done, hinge support 19 and drive the pin jointed end of push rod 20 to drive to drive the body of rod in push rod 20 flexible in bar overlaps, complete the adjustment of the vertical height to scanning bed 1 with the pin joint of itself and crossbeam 3.
In the present embodiment, the body of rod is hinged with hinge support 19 and bar cover is connected with base 2 to drive push rod 20 to be set to, and while can also be set to bar and overlaps and the body of rod hinged with hinge support 19 and be connected with base 2.
In the present embodiment, the optional position that wherein one end of hinge support 19 can hinged be located on crossbeam 3, drive wherein one end of push rod 20 can the corresponding hinged optional position being located at base 2, in the operation of reality, drive the position of push rod 20 mainly according to the corresponding setting of current position of hinge support 19, it is illustrated in figure 1 the most common one and position is set, hinged leading section or the rearward end being located at crossbeam 3 of the other end of hinge support 19, drive corresponding hinged leading section or the rearward end being located at base 2 of the other end of push rod 20, generally, when wherein one end of hinge support 19 needs certain other position being arranged on crossbeam 3, only the end of push rod 20 need to will be driven with identical distance horizontal translation, in fact simple, namely it is show a kind of special case with Fig. 1, hinge support 19 is relative to crossbeam 3 translates how many, drive the lower end of push rod 20 just relative to base 2 translates how many, special case as shown in Figure 1 is for the ease of electricity piece layout and walks line conveniently, those skilled in the art can need the relative position arranging hinge support 19 and driving push rod 20 according to the work requirements of reality and balance.
In the present embodiment, push rod 20 is driven to need locking function, when using electric pushrod, generally band-type brake is had to lock in inner side, then locking is realized with hydraulicvalve and oil circuit when adopting hydraulic push rod, can select according to the work requirements of reality with those skilled in the art about selecting of push rod 20 of driving, also have the various finished product meeting technical requirements to purchase part on the market, ensure that and drive push rod 20 that unnecessary slip can not occur after locking.
In the present embodiment, as shown in Figure 1, the upper end of upper sway brace 9 is articulated with on first rotating shaft 11, the bottom of lower support arm 10 is articulated with the first lower rotary shaft 12, in actual applications, the upper end of upper sway brace 9 can also be articulated with the upper end of swing arm 13 on first, and the bottom of lower support arm 10 can also be articulated with the bottom of the first lower swing arm 14, as shown in Figure 4.
Embodiment 2:
Described driving mechanism comprises driving push rod 20, one end of described driving push rod 20 is hinged to be located on described base 2, the other end of described driving push rod 20 is hinged be located on first rotating shaft 11 or the 2nd on rotating shaft 15 or the first lower rotary shaft 12 or the 2nd lower rotary shaft 16 or upper sway brace 9 or lower support arm 10.
In the present embodiment, driving mechanism only comprises driving push rod 20, one end of driving push rod 20 is hinged to be located on base 2, the other end is hinged be located on first rotating shaft 11 or the 2nd on all can normal operation on rotating shaft 15 or the first lower rotary shaft 12 or the 2nd lower rotary shaft 16 or upper sway brace 9 or lower support arm 10, when driving mechanism works, drive the body of rod of push rod 20 directly flexible in bar overlaps, and adjust in real time by the pin joint at the both ends driving push rod 20, complete the adjustment of the vertical height to scanning bed 1.
In the present embodiment, in fact, the other end of push rod 20 is driven can also hinged to be located on first swing arm 13 or on the first lower swing arm 14 or the 2nd on swing arm 17 or the 2nd lower swing arm 18.
In the present embodiment, when drive push rod 20 the other end hinged be located at rotating shaft 11 on first time, position, thrust, stroke and layout, comprise cost angle consider be optimum embodiment.
In the present embodiment, drive push rod 20 can be set to the structure of the body of rod upper, bar are enclosed within, while can also be set to the body of rod under, bar be enclosed within structure.
In the present embodiment, push rod 20 is driven to need locking function, when using electric pushrod, generally band-type brake is had to lock in inner side, then locking is realized with hydraulicvalve and oil circuit when adopting hydraulic push rod, can select according to the work requirements of reality with those skilled in the art about selecting of push rod 20 of driving, also have the various finished product meeting technical requirements to purchase part on the market, ensure that and drive push rod 20 that unnecessary slip can not occur after locking.
In the present embodiment, as shown in Figure 2, the upper end that the upper end of upper sway brace 9 is articulated with on first swing arm 13, the bottom of lower support arm 10 is articulated with the bottom of the first lower swing arm 14, in actual applications, the upper end of upper sway brace 9 can also be articulated with on first rotating shaft 11 place, and the bottom of lower support arm 10 can also be articulated with the first lower rotary shaft 12 place.
Embodiment 3:
Described driving mechanism comprises the motor 21 and screw mandrel 22 that are equipped with, described leading screw 22 is located at inside described crossbeam 3, one end of described leading screw 22 is connected with front rotary shaft 4, and the cooperation of described screw mandrel 22 is provided with silk mother 23, and described silk mother 23 is connected with described slide block 7 by nut seat.
Described motor 21 is horizontal servomotor.
In the present embodiment, driving mechanism comprises the motor 21 and screw mandrel 22 that are equipped with, and leading screw 22 is located at inside crossbeam 3, and leading screw 22 at least needs in front end to be connected with front rotary shaft 4, as the conduct route of slide block 7, being equipped with silk mother 23 on screw mandrel 22, silk mother 23 is connected with slide block 7 by nut seat, as the carrier of slide block 7, the cooperation of screw mandrel 22 and guide rail 6 ensure that motor 21 is after output, leading screw 22 rotates, and silk mother 23 moves ahead or retreats, and then makes the steady horizontal stroke of slide block 7 forward or backward.
In the present embodiment, in order to ensure mechanism's working stability further, particularly leading screw 22 needs to remain constant relative to the position of crossbeam 3, therefore generally, leading screw 22 is also set to be connected location with rear rotating shaft 5 at rear rotating shaft 5 place, ensures work effect.
In the present embodiment, driving mechanism is set to female 23 structures of leading screw 22-silk, horizontal servomotor 21 is adopted to advance, further ensure the high precision of motion, reversibility and high efficiency feature, also assures that the propelling of slide block 7 can be more regular, more smooth and easy, the mechanical wear reducing mechanical friction when directly transmitting and cause and bigger shake simultaneously.
In the present embodiment, as shown in Figure 3, the upper end of upper sway brace 9 is articulated with on first rotating shaft 11, the bottom of lower support arm 10 is articulated with the first lower rotary shaft 12, in actual applications, the upper end of upper sway brace 9 can also be articulated with the upper end of swing arm 13 on first, and the bottom of lower support arm 10 can also be articulated with the bottom of the first lower swing arm 14.
The invention solves in prior art, the main lift work adopting the lifting device of parallelogram sturcutre and scissors fork structure (comprising two scissors fork structure) to complete scanning bed 1, and the lifting that cannot take into account caused to keeping during different positions, the level attitude of scanning bed 1 is constant and the demand of the consistence of distortion amount, existence and stability is poor in varying degrees, poor rigidity, rising or falling speed is low, motor working efficiency is low, picture quality is unstable, assembling trouble, manufacturability is poor, complex structure and the high problem of cost, by arranging vertical lift device and base 2 in turn at scanning bed 1 time, vertical lift device arranges the crossbeam 3 being parallel to scanning bed 1 and base 2, and at the both ends of crossbeam 3, the first parallel runner assembly and the 2nd runner assembly are set by front rotary shaft 4 and rear rotating shaft 5 are hinged respectively between scanning bed 1 with base 2, guide rail 6 is set on crossbeam 3 simultaneously, by the slide block rotating shaft 8 on the slide block 7 that coordinates with guide rail 6, upper and lower end with the first runner assembly is equipped with upper sway brace 9 and lower support arm 10 respectively, namely movable support is formed with the first runner assembly, coordinate driving mechanism for the driving effect of vertical lifting mechanism, scanning bed 1 can be put down under the prerequisite not changing scanning bed 1 position in the horizontal direction, change its vertical height.Scanning bed the 1 of the present invention is when lifting is to different positions, position in the horizontal direction remains unchanged, center of gravity is on same vertical line all the time, distortion amount consistence is good, the good rigidly of vertical lift device, and rising or falling speed is fast, change structure is simple, working efficiency height and good reliability, the image quality height of later image, cost is low.

Claims (8)

1. one kind can VTOL (vertical take off and landing) scanning bed, described scanning bed under be provided with vertical lift device and base in turn, it is characterized in that: described vertical lift device comprises and is parallel to scanning bed and crossbeam that is base, the both ends of described crossbeam are respectively equipped with front rotary shaft and rear rotating shaft, described scanning bed be provided with between base that the first runner assembly and the 2nd runner assembly, the upper and lower end of described first runner assembly and the upper and lower end of the 2nd runner assembly are hinged respectively to be located on scanning bed and base respectively taking front rotary shaft and rear rotating shaft as pin joint is parallel; Described crossbeam is also provided with guide rail, described guide rail coordinates and is provided with slide block, described slide block is provided with slide block rotating shaft, hinged between the upper end of described slide block rotating shaft and the first runner assembly is provided with sway brace, hinged between the bottom of described slide block rotating shaft and the first runner assembly is provided with lower support arm; Described vertical lifting mechanism also comprises driving mechanism.
2. according to claim 1 a kind of can VTOL (vertical take off and landing) scanning bed, it is characterised in that: described first runner assembly comprise be located at scanning bed on first on rotating shaft, the first lower rotary shaft being located on base, hinged be located on described front rotary shaft and first first between rotating shaft on swing arm and hinged the first lower swing arm being located between described front rotary shaft and the first lower rotary shaft; Described 2nd runner assembly comprise be located at scanning bed on the 2nd on rotating shaft, the 2nd lower rotary shaft being located on base, hinged be located on described rear rotating shaft and the 2nd the 2nd between rotating shaft on swing arm and hinged the 2nd lower swing arm being located between described rear rotating shaft and the 2nd lower rotary shaft.
3. according to claim 2 a kind of can VTOL (vertical take off and landing) scanning bed, it is characterized in that: on described first, distance between the axle center of distance between the axle center of rotating shaft in rotating shaft and the 2nd and front rotary shaft and rear rotating shaft is equal, the distance between the axle center of the distance between the axle center of described first lower rotary shaft and the 2nd lower rotary shaft and front rotary shaft and rear rotating shaft is equal.
4. according to claim 2 a kind of can VTOL (vertical take off and landing) scanning bed, it is characterized in that: described driving mechanism comprises the hinged hinge support in one end and drives push rod, the other end of described hinge support is hinged to be located on crossbeam, and the other end of described driving push rod is hinged to be located on base.
5. according to claim 4 a kind of can VTOL (vertical take off and landing) scanning bed, it is characterized in that: described driving mechanism comprises the hinged hinge support in one end and drives push rod, hinged leading section or the rearward end being located at crossbeam of the other end of described hinge support, corresponding hinged leading section or the rearward end being located at described base of the other end of described driving push rod.
6. according to claim 2 a kind of can VTOL (vertical take off and landing) scanning bed, it is characterized in that: described driving mechanism comprises driving push rod, one end of described driving push rod is hinged to be located on described base, the other end of described driving push rod is hinged be located on first rotating shaft or the 2nd on rotating shaft or the first lower rotary shaft or the 2nd lower rotary shaft or upper sway brace or lower support arm.
7. according to claim 2 a kind of can VTOL (vertical take off and landing) scanning bed, it is characterized in that: described driving mechanism comprises the motor and screw mandrel that are equipped with, described leading screw is located at inside described crossbeam, one end of described leading screw is connected with front rotary shaft, the cooperation of described screw mandrel is provided with silk mother, and described silk mother is connected with described slide block by nut seat.
8. according to claim 7 a kind of can VTOL (vertical take off and landing) scanning bed, it is characterised in that: described motor is horizontal servomotor.
CN201610155571.1A 2016-03-18 2016-03-18 It is a kind of be vertically moved up or down it is scanning bed Active CN105662768B (en)

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CN106236483A (en) * 2016-08-17 2016-12-21 叶青 A kind of operating-table for puncturing
CN107701808A (en) * 2017-11-14 2018-02-16 安徽万方管业集团有限公司 A kind of height for plastic pipe fitting adjusts bracket
CN109453011A (en) * 2019-01-04 2019-03-12 徐莹 A kind of device and its application method detecting cardiovascular system of human body functional status
CN112201957A (en) * 2020-09-29 2021-01-08 中国船舶重工集团公司第七二四研究所 Carrier-borne radar antenna pedestal device with three-dimensional translational support freedom degree

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CN204394849U (en) * 2014-12-31 2015-06-17 李红 A kind of Height Adjustable medical hospital bed
CN205569257U (en) * 2016-03-18 2016-09-14 明峰医疗系统股份有限公司 But vertical lift's scanning bed

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CN1151862A (en) * 1995-09-21 1997-06-18 河南省西峡县人民医院 Hospital handcart capable of lifting and turning to carry patient in bed
DE102006030939A1 (en) * 2006-07-13 2008-01-17 Schütte, Udo Bed i.e. relocation bed, construction, has raising and lowering mechanism attached between support and bed frames to raise and lower lateral sides of bed frame, and locking system for fixing unlifted lateral sides
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CN204394849U (en) * 2014-12-31 2015-06-17 李红 A kind of Height Adjustable medical hospital bed
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106236483A (en) * 2016-08-17 2016-12-21 叶青 A kind of operating-table for puncturing
CN107701808A (en) * 2017-11-14 2018-02-16 安徽万方管业集团有限公司 A kind of height for plastic pipe fitting adjusts bracket
CN109453011A (en) * 2019-01-04 2019-03-12 徐莹 A kind of device and its application method detecting cardiovascular system of human body functional status
CN112201957A (en) * 2020-09-29 2021-01-08 中国船舶重工集团公司第七二四研究所 Carrier-borne radar antenna pedestal device with three-dimensional translational support freedom degree

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