WO2022262131A1 - 一种医用转运床 - Google Patents

一种医用转运床 Download PDF

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Publication number
WO2022262131A1
WO2022262131A1 PCT/CN2021/118220 CN2021118220W WO2022262131A1 WO 2022262131 A1 WO2022262131 A1 WO 2022262131A1 CN 2021118220 W CN2021118220 W CN 2021118220W WO 2022262131 A1 WO2022262131 A1 WO 2022262131A1
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WO
WIPO (PCT)
Prior art keywords
clutch shaft
bed board
driving roller
driving
medical transfer
Prior art date
Application number
PCT/CN2021/118220
Other languages
English (en)
French (fr)
Inventor
张敏
汪雪华
Original Assignee
佳泰康医疗设备(广州)有限公司
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Application filed by 佳泰康医疗设备(广州)有限公司 filed Critical 佳泰康医疗设备(广州)有限公司
Publication of WO2022262131A1 publication Critical patent/WO2022262131A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1025—Lateral movement of patients, e.g. horizontal transfer
    • A61G7/103—Transfer boards
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/104—Devices carried or supported by
    • A61G7/1046—Mobile bases, e.g. having wheels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1049—Attachment, suspending or supporting means for patients
    • A61G7/1057—Supported platforms, frames or sheets for patient in lying position
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1073—Parts, details or accessories

Definitions

  • the present application relates to a medical auxiliary transportation device, in particular to a medical transfer bed.
  • the medical transfer bed is a special medical bed used for transferring patients between beds, as well as transferring patients from the operating table to the ward and from the ambulance.
  • the use of the transfer vehicle solves the difficulty of the patient from the operating table to the ward after the operation, reduces the pain and difficulty caused by the traditional hand-lifted transfer to the patient, and is an essential medical equipment for the hospital.
  • the moving bed board mechanism mainly includes a bed board that can be driven to move laterally by a first driving mechanism.
  • the moving bed board mechanism In order to facilitate the patient to move from the original sick bed to the bed board, the moving bed board mechanism is often equipped with a conveyor roller and a tensioned conveyor belt that is sleeved outside the conveyor roller and the bed board, and the conveyor belt rotates around the conveyor roller and the bed board through the rotation of the conveyor roller. .
  • the first driving mechanism drives the bed board to move laterally between the patient and the original hospital bed.
  • the friction between the bodies drives the patient to move to the bed board, and finally the first drive mechanism reverses the drive to make the bed board reset and move laterally to the vehicle body, which completes the transfer of the patient.
  • the conveyor belt is easily stained with blood, medicine and other stains.
  • the conveyor belt is inconvenient to disassemble, and it is difficult to clean the stains on the fabric surface.
  • a medical transfer bed comprising a vehicle body and a moving bed board mechanism installed on the body, the moving bed board mechanism includes an upper bed board, a driving roller, a conveying cloth belt and a mounting seat, the upper bed board is detachably connected to the mounting seat, the The driving roller is rotatably connected to the mounting seat, and the transmission cloth belt is sleeved outside the driving roller and the upper bed and is tensioned by the driving roller and the upper bed; both ends of the driving roller are detachably connected to a second driving mechanism through a clutch mechanism and Driven to rotate by the second driving mechanism, the mounting seat is provided with a limiting member for radially limiting the driving roller. When the limiting member is misaligned with the driving roller, the driving roller can be separated from the mounting seat. .
  • the moving bed board mechanism further includes a lower bed board, one side of the lower bed board is connected to the mounting seat and supported on the lower end of the upper bed board, and the upper bed board is horizontally limited by the synchronization member and the lower bed board.
  • the synchronous part is a special-shaped bolt with a T-shaped cross section, and the special-shaped bolt is connected to the upper bed board, and a T-shaped slot is opened on the mounting seat, and the special-shaped bolt is located in the T-shaped slot and Horizontally limited by T-slots.
  • the bottom of the T-shaped slot is provided with a slot
  • the position-limiting member is provided with a positioning projection
  • the positioning projection is located in the slot.
  • the limiting member is a pinch plate
  • the pinch plate is rotatably connected to the mounting seat
  • the pinch plate cover is arranged on the driving roller and cooperates with the mounting groove to form a mounting cavity.
  • the pinch plate includes a shielding part and a limiting part arranged separately, one of the limiting parts is located at both ends of the driving roller, and the shielding part is located at two of the limiting parts. between.
  • the clutch mechanism includes a first clutch shaft connected to the end of the driving roller and a second clutch shaft penetrating in its axial direction and slidingly connected to the mounting seat.
  • the third driving mechanism for the sliding of the second clutch shaft, the first clutch shaft is coaxial with the second clutch shaft, and the opposite ends of the first clutch shaft and the second clutch shaft are provided with connecting protrusions.
  • the second driving mechanism includes a rack located above the second clutch shaft and extending along the sliding direction of the mounting seat and a gear arranged along the circumference of the second clutch shaft, the rack is connected to the vehicle body, When the second clutch shaft slides on the mounting seat, the second clutch shaft is always in mesh with the rack through the gear.
  • the third drive mechanism includes a turning plate rotatably connected to the vehicle body, a driving member for driving the turning plate to rotate, and an elastic member for driving the second clutch shaft away from the first clutch shaft, and the turning plate Extending along the sliding direction of the mounting seat, one end of the second clutch shaft is exposed from the mounting seat, and the elastic member is located between the second clutch shaft and the mounting seat.
  • a mounting groove is provided in the mounting seat, the driving roller is placed and rotatably connected in the mounting groove, at least three sets of limit rollers are rotatably connected to the inner wall of the mounting cavity, and all the limit rollers
  • the positioning roller group is arranged along the circumferential direction of the driving roller, and the limiting roller group includes a plurality of limiting rollers arranged axially along the driving roller, and the limiting rollers and the driving roller abut against both sides of the conveyor belt respectively.
  • a medical transfer bed of the present application has the following beneficial effects:
  • the driving roller can be separated from the second driving mechanism through the clutch mechanism, and through the setting of the limiter, the driving roller can be taken out directly from the mounting seat, and the detachable connection between the upper bed board and the mounting seat enables the sleeve
  • the conveyor belt outside the driving roller and the upper bed board can be taken out as a whole, which is convenient for replacement and cleaning;
  • the upper bed board is supported, which improves the stability of the upper bed board when installing and transferring patients;
  • the special-shaped bolts can limit the positioning bumps, so that the limit part cannot be opened under the use state, and the driving roller is kept in the installation cavity. stable rotation within;
  • the upper bed can still be cleaned by opening the shielding part when the upper bed is in use, which is convenient for operation;
  • the present application has the characteristics of convenient disassembly and cleaning of the conveying cloth belt.
  • 1 to 5 show an embodiment of a medical transfer bed provided by the present application.
  • the medical transfer bed includes a vehicle body and a mobile bed mechanism 3 installed on the vehicle body.
  • the moving roller 11 is provided with an adjustment mechanism (not shown) that vertically adjusts the height of the bed base 2 in the mobile frame 1 .
  • the moving bed board mechanism 3 can reciprocate and horizontally move relative to the bed base 2 .
  • the height of the bed base 2 is first adjusted by the adjusting mechanism so that the moving bed board mechanism 3 is slightly higher than the upper surface of the original sick bed, and then the bed board mechanism 3 is moved horizontally Move between the patient's body and the original sick bed, the patient is transferred to the mobile bed board mechanism 3, and finally the mobile bed board mechanism 3 resets and moves laterally to the bed base 2, which completes the transfer of the patient.
  • the moving bed board mechanism 3 comprises a lower bed board 31, an upper bed board 32, a driving roller 33, a mounting seat 34, a conveying cloth belt 35, and a first driving mechanism for driving the upper bed board 32 and the lower bed board 31 to slide horizontally 4.
  • the second driving mechanism 5 for driving the driving roller 33 to rotate, and the clutch mechanism 6 for linking the driving roller 33 and the second driving mechanism 5 .
  • the conveying cloth belt 35 is sheathed outside the driving roller 33 and the upper bed board 32 , and is tensioned by the driving roller 33 and the upper bed board 32 .
  • the driving roller 33 is a rubber roller with a rubber surface, which can increase the friction with the conveying belt 35 and provide stable conveying.
  • the driving roller 33 can also be made of other materials, which is not limited in this application.
  • the lower bed board 31 is placed on the upper end surface of the bed base 2 .
  • the mounting base 34 is fixedly connected to the side of the lower bed board 31 away from the moving-out direction, and the moving-out direction is the moving direction of the moving bed board mechanism 3 to the original sick bed.
  • the first drive mechanism 4 includes a chain 41 , a sprocket 42 engaged with the chain 41 and a motor (not shown) that drives the sprocket 42 to rotate, and the motor is installed in the mobile frame 1 .
  • the mounting base 34 is fixedly provided with a chain connecting plate 346 , and the two ends of the chain 41 are respectively fixedly connected to the two ends of the chain connecting plate 346 in the sliding direction.
  • Both ends of the bed base 2 in the sliding direction of the mounting seat 34 are rotatably connected with a support wheel 21, so that the part of the chain 41 located at the mounting seat 34 is horizontally arranged.
  • the upper bed board 32 overlaps the lower bed board 31 and is located on the side of the mounting seat 34.
  • the upper bed board 32 is horizontally limited by the synchronization member and the lower bed board 31, and keeps sliding horizontally synchronously.
  • Both ends of the mounting base 34 define a T-shaped slot 341 with a T-shaped horizontal section.
  • the bottom of the upper bed board 32 towards the mounting base 34 is fixedly provided with a connecting block 321, and the synchronous part is a special-shaped bolt 322 with a T-shaped horizontal section.
  • the threaded connection relationship between the special-shaped bolt 322 and the connecting block 321 adjusts the distance between the driving roller 33 and the upper bed board 32 , thereby adjusting the tension of the conveying cloth belt 35 .
  • the special-shaped bolt 322 is located in the T-shaped groove 341 , so that the upper bed board 32 is horizontally limited relative to the lower bed board 31 and keeps sliding synchronously.
  • the upper bed board 32 When the upper bed board 32 is disassembled, the upper bed board 32 is kept horizontal and lifted up to make the special-shaped bolt 322 break away from the T-shaped groove 341, so that the conveying cloth belt 35 is taken out from the upper bed board 32 conveniently.
  • an installation slot 342 with a semicircular section is opened in the installation seat 34 , and the driving roller 33 is placed in the installation slot 342 and can rotate along its own axis in the installation slot 342 .
  • the mounting seat 34 is provided with a limiting member for radially limiting the driving roller 33.
  • the limiting member is set as a pinch plate 343, and the pinching plate 343 is rotatably connected to the mounting seat 34 Located above the mounting slot 342 .
  • the pinch plate 343 includes a shielding part 3431 and two stoppers 3432.
  • the shielding part 3431 and the two limiter parts 3432 are arranged separately and can rotate independently.
  • the plate 343 cooperates with the installation groove 342 to form an installation cavity.
  • the two stoppers 3432 are located at both ends of the drive roller 33 and are covered at the end of the drive roller 33, and are used to limit the drive roller 33 in the installation groove 342.
  • the shielding part 3431 covers the middle part of the driving roller 33 to prevent dust and other debris from entering the installation groove 342 and affecting the rotation of the driving roller 33.
  • the shielding part 3431 is opened independently to facilitate the cleaning of the driving roller 33.
  • the limit roller group is provided with four groups, and is respectively positioned at the upper and lower sides of the drive roller 33 and the left and right sides of the horizontal direction. support to prevent the drive roller 33 from being deformed.
  • the limiting roller group includes a number of limiting rollers 345 arranged axially along the driving roller 33.
  • the transmitting cloth belt 35 passes between the driving roller 33 and the limiting roller 345. Passing through, the limiting roller 345 further increases the frictional force between the conveying cloth belt 35 and the driving roller 33 .
  • a slot is provided at the bottom of the T-shaped slot 341 , and a positioning protrusion 3433 is integrally connected to the side of the limiting portion 3432 facing the T-shaped slot 341 , and the positioning protrusion 3433 is located in the slot.
  • the special-shaped bolt 322 is located in the T-shaped slot 341 and abuts against the upper surface of the positioning protrusion 3433, so that the stopper 3432 cannot be rotated and opened. , so that the driving roller 33 is stably positioned in the installation groove 342 by the limiting portion 3432 .
  • the pinch plate 343 is opened, and the connection with the second drive mechanism 5 is released through the clutch mechanism 6, so that the driving roller 33 can be taken out from the mounting groove 342, so that the transmission belt 35 is conveniently replaced .
  • the clutch mechanism 6 includes a first clutch shaft 61 integrally formed at the end of the drive roller 33 and a second clutch shaft 62 penetrating in its axial direction and slidingly connected to the mounting seat 34.
  • the first clutch shaft 61 is coaxial with the second clutch shaft 62 , and the opposite ends of the first clutch shaft 61 and the second clutch shaft 62 are provided with connecting protrusions 63 .
  • the vehicle body is provided with a third drive mechanism 7 for driving the second clutch shaft 62 to slide.
  • the third drive mechanism 7 pushes the first clutch shaft 61 toward the second clutch
  • the shaft 62 slides in the direction, so that the connecting protrusion 63 of the first clutch shaft 61 and the connecting protrusion 63 of the second clutch shaft 62 engage with each other and limit the position in the circumferential direction to realize the transmission.
  • the third drive mechanism 7 drives the first clutch shaft 61 to slide away from the second clutch shaft 62, so that the connecting protrusion 63 of the first clutch shaft 61 is detached from the connecting protrusion of the second clutch shaft 62.
  • the block 63 separates the first clutch shaft 61 from the second clutch shaft 62 , so that the driving roller 33 can be easily taken out from the installation groove 342 .
  • the second driving mechanism 5 includes a rack 52 located above the second clutch shaft 62 and extending along the sliding direction of the mounting seat 34 and a gear 53 arranged along the circumference of the second clutch shaft 62 . Both ends of the rack 52 are fixedly connected to the bed base 2 .
  • the width of the gear 53 on the second clutch shaft 62 is set to be no less than the total length of the width of the rack 52 plus the sliding distance of the second clutch shaft 62, so that when the second clutch shaft 62 slides on the mounting seat 34, the second clutch shaft 62 can The gear 53 keeps meshing with the rack 52 all the time.
  • the first driving mechanism 4 drives the mounting seat 34 and the second clutch shaft 62 to slide horizontally, the second clutch shaft 62 keeps rotating through the cooperation of the gear 53 and the rack 52 .
  • the third drive mechanism 7 includes a turning plate 71 that is rotatably connected to the vehicle body, a driving member (not shown) that drives the turning plate 71 to rotate, and a driving member (not shown) that is used to drive the second clutch shaft 62 away from the first clutch shaft 61.
  • Elastic member 72 is used to drive the second clutch shaft 62 away from the first clutch shaft 61.
  • the elastic member 72 is fixedly connected to the mounting seat 34.
  • the elastic member 72 can be a spring or an elastic layer made of elastic materials such as rubber. In this embodiment, a spring is used as an example. One end of the spring abuts against the reset convex ring 621. When the first clutch shaft 61 engages with the second clutch shaft 62, the spring is in a compressed state under force.
  • the overturning plate 71 is rotatably connected to the bed base 2 through a rotating shaft 711 , and the rotating shaft 711 is located on a side of the overturning plate 71 away from the second clutch shaft 62 .
  • the turning plate 71 extends along the sliding direction of the mounting seat 34 and covers the entire sliding position of the mounting seat 34, so that no matter where the mounting seat 34 slides, the turning plate 71 can rotate and push the second clutch shaft 62 to the first clutch shaft 61. Orientation sliding engagement.
  • the driving member for driving the turning plate 71 to rotate is the prior art, and can be realized by a driving cylinder or a slider crank structure, and will not be repeated here.
  • Adjusting mechanism is prior art, is used for adjusting the distance between bed base 2 and mobile vehicle frame 1, can drive through structures such as lead screw slider structure or oil cylinder, thereby realizes the lifting of bed base 2, makes bed base 2 and
  • the moving bed board mechanism 3 can adapt to the original sick beds of different heights and complete the transfer action, and the present application will not repeat them here.
  • the bed base 2 When in use, the bed base 2 is moved to one side of the original sick bed by the mobile frame 1, and the bed base 2 is adjusted to a suitable height by the adjustment mechanism, so that the lower surface of the lower bed board 31 is kept flush with the upper surface of the original sick bed.
  • the mounting base 34 drives the lower bed board 31 to slide horizontally outward, and the upper bed board 32 is realized through the cooperation of the special-shaped bolt 322 and the T-shaped groove 341 of the mounting base 34
  • the synchronous movement makes the upper bed board 32 and the lower bed board 31 move between the patient's body and the original bed surface.
  • the second clutch shaft 62 continues to rotate along its own axis toward the mounting seat 34 through the cooperation of the gear 53 and the upper rack 52.
  • the rotation of the second clutch shaft 62 is pushed to mesh with the first clutch shaft 61, and the first clutch shaft 61 drives the driving roller 33 to rotate, and the driving roller 33 pulls the conveying cloth belt 35 in the opposite direction to the movement of the upper bed board 32, so that the conveying The cloth belt 35 passes through the frictional force between the patient's body, and the patient's body moves onto the upper bed board 32 more easily.
  • the upper bed board 32 and the lower bed board 31 are driven by the first drive mechanism 4 to reset and move laterally to the bed base 2.
  • Force is applied, and the second clutch shaft 62 is separated from the first clutch shaft 61 by the elastic force of the elastic member 72.
  • the driving roller 33 and the transmission cloth belt 35 remain stationary, so that the patient can be stabilized on the upper bed board 32 , to complete the transfer of the patient.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means two or more, unless otherwise specifically defined.

Abstract

一种医用转运床，包括车身和安装于车身上的移动床板机构（3），移动床板机构（3）包括上层床板（32）、驱动辊（33）、传送布带（35）和安装座（34），上层床板（32）可拆卸连接于安装座（34），驱动辊（33）转动连接于安装座（34），传送布带（35）套设于驱动辊（33）和上层床板（32）外且被驱动辊（33）和上层床板（32）张紧；驱动辊（33）两端通过离合机构（6）可拆卸连接有第二驱动机构（5）并被第二驱动机构（5）驱动转动，安装座（34）上设有用于对驱动辊（33）径向限位的限位件，当限位件与驱动辊（33）错位时，驱动辊（33）能与安装座（34）分离设置。通过离合机构（6）方便与第二驱动机构（5）分离，并通过设置方便拆卸的驱动辊（33）和上层床板（32），实现传送布带（35）的便捷拆卸、更换和清洗。

Description

一种医用转运床
本申请要求于2021年06月18日提交中国专利局、申请号为“202110679023.X”、发明名称为“一种医用转运床”的中国专利申请的优先权。
技术领域
本申请涉及一种医疗辅助运输设备，尤其是涉及一种医用转运床。
背景技术
医用转运床是一种用于病人进行床与床之间的转运，以及将病人从手术台转运到病房和从救护车转运的专用医用床。转运车的运用，解决了病人进行手术后从手术台到病房的困难，减少了传统的手抬转移病人时给病人带来的痛苦和困难，是医院的必备医用设备。
在医用转运床的相关技术中，主要包括用于移动的车身和用于横向移动接送病人的移动床板机构，移动床板机构主要包括可通过第一驱动机构驱动横向移动的床板。为了方便病人从原病床上移动至床板上，移动床板机构常设置输送辊以及张紧套设在输送辊和床板外的传送布带，传送布带通过输送辊的转动绕输送辊和床板循环转动。在需要将病人从原病床上转移到转运床上时，通过第一驱动机构驱动床板横向移动至病人与原病床之间，在此动作期间，输送辊驱动传送布带转动，通过传送布带与病人身体之间的摩擦力，带动病人移动至床板后，最后通过第一驱动机构反向驱动，使床板复位横移至车身上，即完成了病人的转移。
但是传送布带由于直接与病人身体接触，布面容易沾染血迹、药物等污渍，现有的医用转运床中，传送布带的拆卸较为不便，难以对布面的污渍进行清洗。
发明内容
有鉴于此，本公开提供一种医用转运床，技术方案如下：
一种医用转运床，包括车身和安装于车身上的移动床板机构，所述移动床板机构包括上层床板、驱动辊、传送布带和安装座，所述上层床板可拆卸连接于安装座，所述驱动辊转动连接于安装座，所述传送布带套设于驱动辊和上层床板外且被驱动辊和上层床板张紧；所述驱动辊两端通过离合机构可拆卸连接有第二驱动机构并被第二驱动机构驱动转动，所述安装座上设有用于对驱动辊径向限位的限位件，当限位件与驱动辊错位时，所述驱动辊能与所述安装座分离设置。
在一可实施方式中，所述移动床板机构还包括下层床板，所述下层床板一侧连接于安装座且支撑于上层床板下端，所述上层床板通过同步件与下层床板水平限位。
在一可实施方式中，所述同步件为截面为T型的异型螺栓，所述异型螺栓连接于上层床板，所述安装座上开设有T型槽，所述异型螺栓位于T型槽内且被T型槽水平限位。
在一可实施方式中，所述T型槽槽底开设有嵌槽，所述限位件上设有定位凸块，所述定位凸块位于嵌槽内，当所述异型螺栓位于嵌槽内时，异型螺栓抵接于定位凸块上端。
在一可实施方式中，所述限位件为扣板，所述扣板转动连接于安装座，所述扣板盖设于驱动辊上且与安装槽配合形成安装腔。
在一可实施方式中，所述扣板包括分体设置的遮挡部和限位部，所述限位部位于驱动辊两端均设有一个，所述遮挡部位于两个所述限位部之间。
在一可实施方式中，所述离合机构包括连接于驱动辊端部的第一离合轴和沿自身轴向穿设且滑动连接于安装座的第二离合轴，所述车身上设有用于驱动第二离合轴滑动的第三驱动机构，所述第一离合轴与第二离合轴同轴，所述第一离合轴与第二离合轴相对一端均设置有连接凸 块，当所述第一离合轴与第二离合轴同步转动时，所述第一离合轴的连接凸块抵接于第二离合轴的连接凸块的一侧，所述第二驱动机构驱动第二离合轴转动。
在一可实施方式中，所述第二驱动机构包括位于第二离合轴上方且沿安装座滑动方向延伸的齿条和沿第二离合轴周向设置的齿轮，所述齿条连接于车身，当所述第二离合轴滑动于安装座时，所述第二离合轴始终通过齿轮与齿条保持啮合。
在一可实施方式中，所述第三驱动机构包括转动连接于车身的翻转板、驱动翻转板转动的驱动件以及用于驱动第二离合轴远离第一离合轴的弹性件，所述翻转板沿安装座滑动方向延伸，所述第二离合轴一端露出于安装座，所述弹性件位于第二离合轴与安装座之间。
在一可实施方式中，所述安装座内设有安装槽，所述驱动辊放置且转动连接于安装槽内，所述安装腔内壁转动连接有至少三组限位滚组，所有所述限位滚组沿驱动辊周向排列，所述限位滚组包括若干沿驱动辊轴向排列的限位滚子，所述限位滚子和驱动辊分别抵接于传送布带两面。
相对于现有技术，本申请一种医用转运床具有以下有益效果：
1.驱动辊通过离合机构与第二驱动机构可进行分离，且通过限位件的设置，使驱动辊可直接从安装座上取出，通过上层床板与安装座的可拆卸连接，从而使得套设于驱动辊和上层床板外的传送布带可整体取出，方便更换和清洗；
2.通过下层床板的设置，对上层床板进行支撑，提高了上层床板安装和转移病人时的稳定性；
3.通过异型螺栓和T型槽的设置，在安装上层床板时，仅需将异型螺栓置于T型槽内，然后将上层床板搭接于下层床板上，即可实现上层床板与下层床板的限位和同步滑动，提高了上层床板安 装和拆卸的便捷性；
4.通过定位凸块和异型螺栓的配合，当上层床板安装于下层床板上时，异型螺栓能对定位凸块进行限位，使使用状态下的限位部无法打开，保持驱动辊在安装腔内的稳定转动；
5.通过转动连接于安装座的扣板的设置，在对驱动辊进行取放时，仅需转动扣板即可，驱动辊即可与安装座分离；
6.通过遮挡部和限位部的分体设置，使上层床板在使用状态下，仍可以通过打开遮挡部对驱动辊进行清理，方便操作；
7.通过限位滚组的设置，提高了驱动辊转动的稳定性，且可减少驱动辊的受力形变；
8.通过第一离合轴和第二离合轴的连接凸块的设置，方便驱动辊与第二驱动机构的连接与分离，提高驱动辊拆卸的便捷性；
9.通过第二驱动机构的设置，实现与第一驱动机构的联动，当上层床板水平滑动时，仅需通过翻转板推动第二离合轴滑动，即可实现对驱动辊转动的控制，方便控制且节省了第二驱动源；
10.通过第三驱动机构的设置，方便对第二离合轴进行驱动控制。
因此，本申请具有方便对传送布带拆卸、清洗等特点。
附图说明
附图1是本申请提供的一种医用转运床的原始状态的整体结构示意图；
附图2是本申请提供的一种医用转运床的移动床板机构的结构分解示意图；
附图3是本申请提供的一种医用转运床的离合机构处的结构示意图；
附图4是本申请提供的一种医用转运床的移动床板机构向外滑动状态的整体结构示意图；
附图5是图2中A处的局部放大图。
图中标号说明：1、移动车架；11、滚轮；2、床座；21、支撑轮；3、移动床板机构；31、下层床板；32、上层床板；321、连接块；322、异型螺栓；33、驱动辊；34、安装座；341、T型槽；342、安装槽；343、扣板；3431、遮挡部；3432、限位部；3433、定位凸块；345、限位滚子；346、链条连接板；35、传送布带；4、第一驱动机构；41、链条；42、链轮；5、第二驱动机构；52、齿条；53、齿轮；6、离合机构；61、第一离合轴；62、第二离合轴；621、复位凸环；63、连接凸块；7、第三驱动机构；71、翻转板；711、转轴；72、弹性件。
具体实施方式
为使本申请的目的、特征、优点能够更加的明显和易懂，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而非全部实施例。基于本申请中的实施例，本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
实施例：
图1至图5出示了本申请提供的一种医用转运床的一种实施例。
参照图1，医用转运床包括车身和安装于车身上的移动床板机构3，车身包括移动车架1和用于安装移动床板机构3的床座2，移动车架1下端安装有四个供车身移动的滚轮11，移动车架1内设置有竖直调节床座2高度的调节机构(图中未示出)。移动床板机构3可相对于床座2往复水平横移。
在使用时，将车身通过滚轮11移动至病人所在的原病床一侧后，首先通过调节机构调节床座2高度，使移动床板机构3略高于原病床上表面，然后移动床板机构3水平横移至病人身体与原病床之间，使病人转移至移动床板机构3上，最后移动床板机构3复位横移至床座2上，即 完成了病人的转移。
参照图2和图3，移动床板机构3包括下层床板31、上层床板32、驱动辊33、安装座34、传送布带35、用于驱动上层床板32和下层床板31水平滑动的第一驱动机构4、用于驱动驱动辊33转动的第二驱动机构5、用于联动驱动辊33和第二驱动机构5的离合机构6。传送布带35套设于驱动辊33和上层床板32外，且被驱动辊33和上层床板32张紧。
驱动辊33为胶辊，表面为橡胶材质，能够增大与传送布带35之间的摩擦力，提供输送的稳定性。驱动辊33也可为其他材质制成，本申请在此不做限定。
参照图4，下层床板31放置于床座2上端面。安装座34固定连接于下层床板31远离移出方向的一侧，移出方向为移动床板机构3向原病床的移动方向。
参照图4，第一驱动机构4位于安装座34的两端均设有一组。第一驱动机构4包括链条41、与链条41啮合的链轮42以及驱动链轮42转动的电机(图中未示出)，电机安装于移动车架1内。安装座34上固定设有链条连接板346，链条41两端分别固定连接于链条连接板346滑动方向的两端。床座2位于安装座34滑动方向的两端均转动连接有一支撑轮21，从而使得链条41位于安装座34处的部分呈水平设置。当电机驱动链轮42转动时，链条41运转，从而带动安装座34和下层床板31水平滑动。
参照图2和图5，上层床板32搭接于下层床板31上且位于安装座34一侧，上层床板32通过同步件与下层床板31水平限位，并保持水平同步滑动。
安装座34位于两端位置均开设有一水平截面为T型的T型槽341。上层床板32朝向安装座34一端的底部固定设有连接块321，同步件为水平截面为T型的异型螺栓322，异型螺栓322水平穿设且螺纹连接于 连接块321，方便连接，且可通过异型螺栓322与连接块321的螺纹连接关系调节驱动辊33与上层床板32之间的间距，从而调节传送布带35的张紧度。
当上层床板32搭接于下层床板31上时，异型螺栓322位于T型槽341中，使上层床板32相对于下层床板31水平限位，保持同步滑动。
在对上层床板32进行拆卸时，将上层床板32保持水平状态向上抬起，使异型螺栓322从T型槽341中脱离即可，方便将传送布带35从上层床板32上取出。
参照图5，安装座34内开设有截面为半圆形的安装槽342，驱动辊33置于安装槽342内且可在安装槽342内沿其自身轴线转动。
参照图3和图5，安装座34上设有用于对驱动辊33径向限位的限位件，本实施例中，限位件设置为扣板343，扣板343转动连接于安装座34位于安装槽342上方。
扣板343包括遮挡部3431和两个限位部3432，遮挡部3431和两个限位部3432呈分体设置，可独立转动，当扣板343转动至罩设于驱动辊33上方时，扣板343与安装槽342配合形成安装腔。两个限位部3432位于驱动辊33两端且罩设于驱动辊33端部位置，用于将驱动辊33限位于安装槽342内，在需要取出驱动辊33时，仅需将限位部3432相对于安装座34转动打开安装槽342即可，操作方便。遮挡部3431罩设于驱动辊33中间部分，可防止灰尘等杂物进入安装槽342内，对驱动辊33的转动造成影响，遮挡部3431独立打开，方便对驱动辊33进行清理。
参照图5，安装腔内壁转动连接有至少三组限位滚组，若干限位滚组沿驱动辊33周向等距排列，对驱动辊33形成三点限位，使驱动辊33在安装腔内保持稳定转动。本实施例中，限位滚组设有四组，且分别位于驱动辊33上下两侧和水平方向的左右两侧位置，位于驱动辊33下侧的限位辊组能够同时对驱动辊33进行支撑，防止驱动辊33发生形变。 限位滚组包括若干沿驱动辊33轴向排列的限位滚子345，当传送布带35套设于驱动辊33外时，传送布带35从驱动辊33与限位滚子345之间穿过，限位滚子345进一步增大了传送布带35与驱动辊33之间的摩擦力。
参照图3，T型槽341槽底开设有嵌槽，限位部3432朝向T型槽341一侧一体连接有定位凸块3433，定位凸块3433位于嵌槽内。当上层床板32搭接于下层床板31上，且与下层床板31水平限位时，异型螺栓322位于T型槽341内且抵接于定位凸块3433上端面，使限位部3432无法转动打开，从而使驱动辊33被限位部3432稳定定位于安装槽342内。
当需要更换传送布带35时，打开扣板343，并通过离合机构6解除于第二驱动机构5的连接，即可将驱动辊33从安装槽342中取出，方便对传送布带35进行更换。
参照图3和图5，离合机构6包括一体成型于驱动辊33端部的第一离合轴61和沿自身轴向穿设且滑动连接于安装座34的第二离合轴62，第一离合轴61与第二离合轴62同轴，第一离合轴61与第二离合轴62相对一端均设置有连接凸块63。
车身上设有用于驱动第二离合轴62滑动的第三驱动机构7，当第一离合轴61与第二离合轴62同步转动时，第三驱动机构7推动第一离合轴61向第二离合轴62方向滑动，使第一离合轴61的连接凸块63与第二离合轴62的连接凸块63相互卡接并周向限位，实现传动。当驱动辊33不需要转动时，第三驱动机构7驱动第一离合轴61向远离第二离合轴62方向滑动，使第一离合轴61的连接凸块63脱离第二离合轴62的连接凸块63，使第一离合轴61和第二离合轴62分离，从而方便驱动辊33从安装槽342内取出。
参照图3和图5，第二驱动机构5包括位于第二离合轴62上方且沿 安装座34滑动方向延伸的齿条52和沿第二离合轴62周向设置的齿轮53。齿条52两端固定连接于床座2。第二离合轴62上齿轮53宽度设置为不小于齿条52宽度加第二离合轴62滑动距离的总长度，从而使得当第二离合轴62滑动于安装座34时，第二离合轴62能始终通过齿轮53与齿条52保持啮合。当第一驱动机构4驱动安装座34以及第二离合轴62水平滑动时，第二离合轴62通过齿轮53与齿条52的配合始终保持转动。
参照图3，第三驱动机构7包括转动连接于车身的翻转板71、驱动翻转板71转动的驱动件(图中未示出)以及用于驱动第二离合轴62远离第一离合轴61的弹性件72。
第二离合轴62一端穿过且露出于安装座34，且第二离合轴62端部一体成型有复位凸环621。弹性件72固定连接于安装座34上，弹性件72可为弹簧或由橡胶等弹性材料制成的弹性层，本实施例中使用弹簧进行举例说明，弹簧一端抵接于复位凸环621，第一离合轴61与第二离合轴62啮合时，弹簧呈受力压缩状态。
翻转板71通过转轴711转动连接于床座2，转轴711位于翻转板71远离第二离合轴62的一侧。翻转板71沿安装座34滑动方向延伸，并覆盖安装座34的整个滑动位置，使无论安装座34滑动至何处，翻转板71均能转动并推动第二离合轴62向第一离合轴61方向滑动啮合。
驱动翻转板71转动的驱动件为现有技术，可通过驱动缸或曲柄滑块结构实现，在此不再展开赘述。
调节机构为现有技术，用于调节床座2与移动车架1之间的距离，可通过丝杠滑块结构或油缸等结构进行驱动，从而实现床座2的升降，使床座2和移动床板机构3能够适应不同高度的原病床并完成转移动作，本申请在此不再进行赘述。
本实施例的具体实施原理：
在使用时，将床座2通过移动车架1移动至原病床一侧，并通过调节机构将床座2调节至合适的高度，使下层床板31下表面与原病床上表面保持平齐。
然后通过电机驱动链轮42带动链条41运作，拉动安装座34水平滑动，安装座34带动下层床板31水平向外滑动，上层床板32通过异型螺栓322与安装座34的T型槽341的配合实现同步运动，使上层床板32和下层床板31均移动至病人身体与原病床上表面之间。在上层床板32移动至病人身体与原病床之间的过程中，第二离合轴62通过齿轮53与上方齿条52的配合，持续沿自身轴线向安装座34方向转动，此时通过翻转板71的转动，将第二离合轴62推动至与第一离合轴61啮合，第一离合轴61驱动驱动辊33转动，驱动辊33将传送布带35向上层床板32移动的反方向拉动，使传送布带35通过与病人身体之间的摩擦力，病人身体更容易移动至上层床板32上。当病人身体完全置于上层床板32时，通过第一驱动机构4驱动上层床板32和下层床板31复位横移至床座2上，在此过程中，解除翻转板71对第二离合轴62的施力，第二离合轴62通过弹性件72的弹力与第一离合轴61分离，此时上层床板32移动时，驱动辊33和传送布带35保持静止，使病人能稳定在上层床板32上，完成病人的转移。
在对传送布带35进行拆卸更换或清洗时，首先将上层床板32抬起，使异型螺栓322从T型槽341中脱出，然后打开扣板343，在翻转板71未施力的情况下，第一离合轴61与第二离合轴62通过弹性件72始终保持分离状态，驱动辊33可直接从安装槽342中取出，从而使套设在驱动辊33和上层床板32外的传送布带35可直接取出，方便进行更换和清洗。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例 或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (10)

  1. 一种医用转运床，包括车身和安装于车身上的移动床板机构(3)，其特征在于，所述移动床板机构(3)包括上层床板(32)、驱动辊(33)、传送布带(35)和安装座(34)；
    所述上层床板(32)可拆卸连接于安装座(34)；
    所述驱动辊(33)转动连接于安装座(34)；
    所述传送布带(35)套设于驱动辊(33)和上层床板(32)外且被驱动辊(33)和上层床板(32)张紧；
    其中，所述驱动辊(33)两端通过离合机构(6)可拆卸连接有第二驱动机构(5)并被第二驱动机构(5)驱动转动，所述安装座(34)上设有用于对驱动辊(33)径向限位的限位件，当限位件与驱动辊(33)错位时，所述驱动辊(33)能与所述安装座(34)分离设置。
  2. 根据权利要求1所述的一种医用转运床，其特征在于，所述移动床板机构(3)还包括下层床板(31)，所述下层床板(31)一侧连接于安装座(34)且支撑于上层床板(32)下端，所述上层床板(32)通过同步件与下层床板(31)水平限位。
  3. 根据权利要求2所述的一种医用转运床，其特征在于，所述同步件为截面为T型的异型螺栓(322)，所述异型螺栓(322)连接于上层床板(32)，所述安装座(34)上开设有T型槽(341)，所述异型螺栓(322)位于T型槽(341)内且被T型槽(341)水平限位。
  4. 根据权利要求3所述的一种医用转运床，其特征在于，所述T型槽(341)槽底开设有嵌槽，所述限位件上设有定位凸块(3433)，所述定位凸块(3433)位于嵌槽内，当所述异型螺栓(322)位于嵌槽内时，异型螺栓(322)抵接于定位凸块(3433)上端。
  5. 根据权利要求1所述的一种医用转运床，其特征在于，所述限位件为扣板(343)，所述扣板(343)转动连接于安装座(34)，所述扣板(343) 盖设于驱动辊(33)上且与安装槽(342)配合形成安装腔。
  6. 根据权利要求5所述的一种医用转运床，其特征在于，所述扣板(343)包括分体设置的遮挡部(3431)和限位部(3432)，所述限位部(3432)位于驱动辊(33)两端均设有一个，所述遮挡部(3431)位于两个所述限位部(3432)之间。
  7. 根据权利要求1所述的一种医用转运床，其特征在于，所述离合机构(6)包括连接于驱动辊(33)端部的第一离合轴(61)和沿自身轴向穿设且滑动连接于安装座(34)的第二离合轴(62)，所述车身上设有用于驱动第二离合轴(62)滑动的第三驱动机构(7)，所述第一离合轴(61)与第二离合轴(62)同轴，所述第一离合轴(61)与第二离合轴(62)相对一端均设置有连接凸块(63)，当所述第一离合轴(61)与第二离合轴(62)同步转动时，所述第一离合轴(61)的连接凸块(63)抵接于第二离合轴(62)的连接凸块(63)的一侧，所述第二驱动机构(5)驱动第二离合轴(62)转动。
  8. 根据权利要求7所述的一种医用转运床，其特征在于，所述第二驱动机构(5)包括位于第二离合轴(62)上方且沿安装座(34)滑动方向延伸的齿条(52)和沿第二离合轴(62)周向设置的齿轮(53)，所述齿条(52)连接于车身，当所述第二离合轴(62)滑动于安装座(34)时，所述第二离合轴(62)始终通过齿轮(53)与齿条(52)保持啮合。
  9. 根据权利要求7所述的一种医用转运床，其特征在于，所述第三驱动机构(7)包括转动连接于车身的翻转板(71)、驱动翻转板(71)转动的驱动件以及用于驱动第二离合轴(62)远离第一离合轴(61)的弹性件(72)，所述翻转板(71)沿安装座(34)滑动方向延伸，所述第二离合轴(62)一端露出于安装座(34)，所述弹性件(72)位于第二离合轴(62)与安装座(34)之间。
  10. 根据权利要求1所述的一种医用转运床，其特征在于，所述安装座 (34)内设有安装槽(342)，所述驱动辊(33)放置且转动连接于安装槽(342)内，所述安装腔内壁转动连接有至少三组限位滚组，所有所述限位滚组沿驱动辊(33)周向排列，所述限位滚组包括若干沿驱动辊(33)轴向排列的限位滚子(345)，所述限位滚子(345)和驱动辊(33)分别抵接于传送布带(35)两面。
PCT/CN2021/118220 2021-06-18 2021-09-14 一种医用转运床 WO2022262131A1 (zh)

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