WO2018120630A1 - 背部悬空下沉式电动护理床架 - Google Patents

背部悬空下沉式电动护理床架 Download PDF

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Publication number
WO2018120630A1
WO2018120630A1 PCT/CN2017/086279 CN2017086279W WO2018120630A1 WO 2018120630 A1 WO2018120630 A1 WO 2018120630A1 CN 2017086279 W CN2017086279 W CN 2017086279W WO 2018120630 A1 WO2018120630 A1 WO 2018120630A1
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WO
WIPO (PCT)
Prior art keywords
panel
motor
bed frame
head
back panel
Prior art date
Application number
PCT/CN2017/086279
Other languages
English (en)
French (fr)
Inventor
高雪峰
赵云
Original Assignee
浙江世道电器有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江世道电器有限公司 filed Critical 浙江世道电器有限公司
Priority to US16/069,729 priority Critical patent/US10959532B2/en
Publication of WO2018120630A1 publication Critical patent/WO2018120630A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by electric motors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/02—Parts or details of bedsteads not fully covered in a single one of the following subgroups, e.g. bed rails, post rails
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/08—Head -, foot -, or like rests for beds, sofas or the like with means for adjusting two or more rests simultaneously
    • 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
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/015—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch 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
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/018—Control or drive mechanisms
    • 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
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/065—Rests specially adapted therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/02—Parts or details of bedsteads not fully covered in a single one of the following subgroups, e.g. bed rails, post rails
    • A47C19/021—Bedstead frames
    • 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
    • A61G1/013—Stretchers foldable or collapsible
    • 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
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/02—Adjustable operating tables; Controls therefor
    • 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
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/02—Adjustable operating tables; Controls therefor
    • A61G13/08—Adjustable operating tables; Controls therefor the table being divided into different adjustable sections
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/12—Remote controls

Definitions

  • the present invention relates to an electric bed frame, and more particularly to a back-suspended sunken electric care bed frame.
  • Beds are an indispensable piece of furniture in every home. With the gradual improvement of living standards, people have a higher pursuit of the aesthetics, comfort and functionality of the bed.
  • An electric bed is a modern type of home bed in which the functionality is superior.
  • the electric bed can electrically control the height of the head or foot and freely adjust the bending of the bed.
  • the bed frame the electric bed is divided into two types: the rib cage and the bed plate.
  • the row frame is called the European electric bed
  • the bed plate is called the American electric bed.
  • Head and tail lifting function Compared with medical use, the lifting function is more perfect and diversified. According to the ergonomics, five body segment joint points (that is, the bending points of the human body) are set on the bed frame. Through the remote control operation, the bed frame angle can be adjusted at will, the bending angle of each part of the human body can be adapted, and the body posture can be freely adjusted. Reduce neck pressure, sit up, lie back or just raise your feet to promote blood circulation.
  • a variety of mattresses can be placed on the electric bed frame to form a modern home bed.
  • the existing domestically produced electric bed is generally American 4 or 5, divided into the head, back, buttocks, thighs and calves, as well as the head and back.
  • the existing electric bed has a relatively reasonable function and a relatively simple structure, and is more comfortable and more humanized than an ordinary flat bed.
  • problems or defects that need to be improved.
  • the second problem is the misalignment. Because the mattress has a certain thickness and hardness, there is a certain bending radius after bending. It is calculated by bending a middle layer of a sponge bed of 2 meters long and 20 cm thick, and the back is bent at 70 degrees. Bending 30 degrees, the length of the underside extension is 2.14 meters, and the total length of each part of the bed frame is only 2 meters, the displacement is nearly 14 The centimeter, that is, the mattress will protrude from the bed frame after the bed is raised, affecting the aesthetics.
  • the third is to push back the friction: No matter whether it is four or five, the backrest of the electric bed on the market is now installed at the lower end of the backrest bracket.
  • the rear panel rotating shaft 14 is located at the lowermost end of the back panel 2. After laying the mattress, it is at the lower rear of the hip waist.
  • the back pusher motor 8 pushes the backrest up, the backrest bracket and the mattress are relatively displaced, and the relative displacement of the human body thickness and the mattress, during the body-building process, the human body The back side produces a strong friction with the mattress, that is, the person's back is up, and the clothes are pulled by the mattress.
  • the technical problem to be solved by the present invention is to provide a back-suspended sunken electric care bed frame, which can avoid a large dislocation between the backrest bracket and the mattress, and reduce the push of the mattress and the human body. The back feel and the pulling feeling, thereby reducing the noise generated by the misalignment and improving the comfort of the electric bed.
  • the technical solution adopted by the present invention to solve the above technical problem is to provide a back suspension sunken electric care bed frame, comprising a head panel, a back panel, a hip panel, a thigh panel and a calf panel, below the back panel
  • a back push rod motor and a leg push rod motor drives the hip panel through the scissors support assembly
  • the calf panel moves back and forth and is parallel with the base, wherein a quarter of the lower portion of the back panel
  • a back panel rotating shaft is disposed at one-half, the back panel is fixed on the base by a column, one end of the column is fixed on the base, and the other end is connected to the rotating shaft of the back panel, and the front end shaft of the back push rod motor
  • the front end shaft is fixedly connected to the base plate; the front end shaft, the rear end shaft and the rear plate shaft of the back push rod motor form a triangle to position the back panel angle.
  • the above-mentioned back suspension sunken electric care bed frame wherein the head panel is rotatably connected to the back panel through a hinge; the head panel is provided with a head motor front fixing member, and the back panel is provided The head motor rear fixing member, the head motor front fixing member and the head motor rear fixing member are connected by a head push rod motor to adjust a relative angle between the head panel and the back panel.
  • the back suspension sunken electric care bed frame provided by the present invention can prevent the buttocks from sinking by lowering the back plate pivot mounting position in the middle or the middle of the back panel instead of the bottom end position, thereby avoiding the backrest
  • the bracket is greatly dislocated between the body and the mattress, which reduces the push back feeling and the pulling feeling caused by the large dislocation friction of the mattress and the human body, thereby reducing the noise generated by the misalignment and improving the comfort of the electric bed.
  • FIG. 1 is a schematic view showing the structure of a conventional electric bed frame and a back shaft
  • FIG. 2 is a schematic view showing a flat structure of a back-suspended sunken electric care bed frame according to the present invention
  • FIG. 3 is a schematic view showing the side structure of the back floating type electric nursing bed frame of the present invention.
  • FIG. 4 is a schematic view showing the angle of the back surface of the electric bed frame raised by the backrest of the present invention
  • FIG. 5 is a side view of the back suspension type sun care electric care bed frame with the backrest raised and the legs laid flat.
  • FIG. 6 is a schematic view showing the structure of the backrest squat of the back suspension type electric nursing bed frame of the present invention.
  • FIG. 7 is a schematic view showing the side structure of the backrest raised squat of the back suspension type electric nursing bed frame of the present invention.
  • FIG. 8 is a schematic view showing the movement of the scissors support of the electric bed frame of the present invention.
  • FIG. 2 is a schematic view showing the structure of the back floating type electric nursing bed frame of the present invention
  • FIG. 3 is a schematic view showing the side structure of the back hanging type electric nursing bed frame of the present invention
  • the bed frame backrest is raised to form a triangular positioning back panel angle diagram.
  • a back pusher motor 8 and a leg pusher motor 9 are disposed under the back panel 2, and the leg pusher motor 9 drives the buttocks panel 3 through the scissors support assembly, and the calf panel 5 moves back and forth and is parallel with the base 7, wherein
  • a rear panel rotating shaft 14 is disposed at a quarter to a half of a lower portion of the back panel 2, and the back panel 2 is fixed to the base 7 by a pillar 22, and one end of the pillar 22 is fixed on the base 7.
  • the other end is connected to the back plate rotating shaft 14,
  • the front end rotating shaft 801 of the back push rod motor 8 is connected to the back side plate 2, and the rear end rotating shaft 802 is fixedly connected to the base 7.
  • the front end rotating shaft 801, the rear end rotating shaft 802 and the rear plate rotating shaft 14 of the back push rod motor 8 form a triangle.
  • the back panel angle is located by the stroke of the motor push rod 803.
  • the present invention moves the back panel hinge 14 from the original backrest hip joint, that is, the lowermost end of the backrest bracket, up to one quarter to one half of the backrest bracket, preferably one third (About the upward movement distance d is 170mm), after designing, the center of rotation falls to the lower end of the human back, so that the space position can be reversed, and the back pusher motor 8 can be reversed. From the original only thrust, the backrest can be raised. Changing the pull also allows the backrest to rise.
  • the forward and reverse assembly of the motor is custom-designed by the designer, and each has its own advantages and disadvantages.
  • the compressive strength of the motor pusher is higher than the tensile strength, and there is no force in the actual use that exceeds the deformation.
  • the dressing motor will be exposed to the outside as the back rises, which is easy to be seen and affects the appearance.
  • the reverse mounted motor is easy to hide, and the motor pull is used between long turns to reduce the life of the motor.
  • the backrest shaft can be moved backwards, and both the front and the back can be installed. See the design requirements.
  • the process of raising the backrest becomes two opposite processes, and the back plate rotating shaft 14 is above the waist of the human body, and most of the head and the back are in an upward rotating state, and the back is Below the panel hinge 1 4, the lower body below the waist of the human body, especially the buttocks, is in a process of bending downwards, that is, a state of sinking.
  • the two opposite actions cause the displacement of the mattress to cancel out a part of each other, and the backrest process keeps the friction between the back of the human body and the mattress in a small state.
  • the upward movement of the back plate rotating shaft 14 greatly reduces the force of the back plate 2 to be turned up, and the reduction of the pushing and pulling force of the motor can greatly save the power consumption of the electric bed.
  • the lower body has no frictional sinking process, which makes people feel a suspended feeling in use.
  • the present invention can clearly and intuitively see the change of the up state by moving the back of the back shaft to the shaft: 1) The back becomes a two-part movement direction, and one side rotates upward and one side rotates downward. Reducing part of the torque and reducing the working pressure of the motor. 2) The position of the buttocks is obviously lowered, giving a feeling of a slight weightlessness and reducing the height of the bed surface, which is beneficial for people with mobility problems to get into bed. Suspension bed frame: head, raised, legs flat, after the backrest is raised, the height of the hip, thigh, and leg bed frame from the lowest position h is only 127mm, which greatly facilitates the user to get on and off the bed.
  • the panels of the present invention may be assembled by a hinge 6 which is screwed to the panel, and the hinge 6 is pivoted by a pin.
  • the head panel 1 is rotated by the hinge 6 and the back panel 2 Pick up.
  • the angle of the head panel 1 adjusts the relative angle of the head panel and the back panel by controlling the stroke of the head motor 11, and the head motor front fixing member 12 and the head motor rear fixing member 13 are screwed to the respective panels.
  • the hip panel 3 of the present invention is held in its parallel base 7 state by the first scissors holder 23 below.
  • the number of the first scissor braces 23 is two and is connected by the intermediate shaft 15.
  • Each scissor support is formed by a combination of a scissors strut, a bearing shaft 16, a bearing 17, and a bearing chute 18.
  • the upper bearing chute is fixed on the buttock plate by screws, and the lower bearing chute is fixed on the base 7 by screws.
  • One end of the scissor strut is put on the pin to be positioned on the upper bearing chute, and the other three positions are supported by the bearing 17 in the bearing.
  • the chute 18 is free to slide.
  • the thigh panel 4 and the front hip panel 3, as well as the rear calf panel 5, are freely rotatably connected by a panel hinge 6.
  • the calf panel 5 is kept parallel to the base by the second scissors holder 24, and the number of the second scissors holders 24 is two, which are connected by the intermediate shaft 15.
  • the height of the panel is adjusted by the leg motor 9, through the pusher head 19, the scissors pusher 21 and the bearing cover 20, and the stroke adjustment angle is controlled to adjust the height of the lower leg panel.
  • the lower right end A of the two second scissors holders 24 are fixed on the base 7, and the other three ends B are free to slide, as shown in FIG. 8; the lower left ends of the two second scissors supports 24 are connected by the scissors support push rod 21,
  • the scissors pusher 21 is connected to the leg pusher motor 9.
  • the present invention has the rear plate rotating shaft mounting position in the middle or middle of the back panel, rather than the bottom position, so that the buttock position is sunk; the specific advantages are as follows: 1) The lifting effect is good, eliminating Push back; 2) Reduce the thrust of the back motor and save energy; 3) After the backrest is raised, the lower body has a low height and is convenient for getting on and off the bed.

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  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

一种背部悬空下沉式电动护理床架，包括头面板（1）、背面板（2）、臀部面板（3）、大腿面板（4）和小腿面板（5），背面板（2）下方设置有背部推杆电机（8）和腿部推杆电机（9），腿部推杆电机（9）通过剪刀撑组件驱动臀部面板（3）、小腿面板（5）前后移动并与底座（7）保持平行，其中，背面板（2）下部的四分之一到二分之一处设置有背面板转轴（14），背面板（2）固定是由立柱（22）、背面板转轴（14）固定在底座（7）上，再由背部推杆电机（8）固定行程，形成一个稳固三角形来定位背面板角度。本发明提供的背部悬空下沉式电动护理床架，能够避免靠背支架起身时和床垫之间造成大幅错位，减轻床垫和人体大幅错位摩擦产生的推背感和拉扯感，进而减轻错位产生的噪音，提高电动床使用的舒适性。

Description

背部悬空下沉式电动护理床架
技术领域
[0001] 本发明涉及一种电动床架， 尤其涉及一种背部悬空下沉式电动护理床架。
背景技术
[0002] 床是每个家庭中不可或缺的一种家具产品。 随着生活水平的逐渐提高， 人们对 床的美观性， 舒适性， 功能性也有了更高的追求。
[0003] 电动床就是其中功能性更加优越的一种现代式家居床。 电动床可电动控制床板 头部或脚部高度， 并可自由调节床板弯曲程度。 电动床按照床架不同分为排骨 架和床板式两大类， 排骨架称为欧式电动床， 而床板式称为美式电动床。
[0004] 头尾升降功能： 与医护使用相比， 升降功能更趋完善和多样化。 根据人体工程 学在床架上设立 5个身体分段关节点 （也就是人体的弯折点） ， 通过遥控操作， 可随意调节床架角度， 适应人体各个部位的弯曲角度， 自由调节身体姿势， 减 轻颈部压力， 端坐、 后躺或仅将脚部升起以促进血液循环。
[0005] 电动床架上放置各种床垫即可组合成一张现代式的家居床。 现有国内生产的电 动床， 一般为美式 4段或 5段， 分为头部、 背部、 臀部、 大腿部和小腿部， 也有 头背部一起的。
[0006] 现有的电动床已经是功能比较合理， 结构比较简洁， 相比普通的平板床更加舒 适， 更加人性化。 但也存在着几个问题或者说是缺陷， 有待改进升级。
[0007] 一是分段关节点上， 现有的为单轴转动， 当靠背升起大角度后与床垫明显脱幵 ， 不贴实， 留有加大的缝隙， 缘由就是床垫有一定的硬度， 不可能完全折成一 个死角， 床垫越厚， 越硬其弯转的外径越大， 而床架的折起 R角基本为 0， 所以 臀部背部折弯处就会留出一个三角形空挡， 影响美观度， 但不影响使用功能性
[0008] 二是错位问题， 由于床垫具有一定的厚度、 硬度， 弯曲后存在一定的弯曲半径 ， 以一张 2米长 20厘米厚的海绵床中间层弯曲来算， 背部弯曲 70度， 大腿弯曲 30 度， 其下侧外延尺寸长度达到 2.14米， 而床架各部分的总长只有 2米， 错位近 14 公分， 即床头处升起后床垫会突出床架一段距离， 影响美观度。
[0009] 三是推背摩擦感： 不管是四段还是五段， 现在市面上的电动床的靠背起身转轴 都是安装在靠背支架的最下端。 如图 1所示， 背面板转轴 14位于背面板 2的最下 端。 铺上床垫后就是在臀部腰部的下后方， 当背部推杆电机 8将靠背推起吋， 靠 背支架和床垫相对位移， 加上人体厚度跟床垫产生的相对位移， 起身过程中， 人体后背侧与床垫产生很强的摩擦力， 即人的背部要向上， 衣服却被床垫拉着
， 很不舒服。 起身动作过程中， 要不断挪动屁股和后背消除摩擦力。 这个缺陷 普遍存在现在市面上的所有电动床。
技术问题
[0010] 本发明所要解决的技术问题是提供一种背部悬空下沉式电动护理床架， 能够避 免靠背支架起身吋和床垫之间造成大幅错位， 减轻床垫和人体大幅错位摩擦产 生的推背感和拉扯感， 进而减轻错位产生的噪音， 提高电动床使用的舒适性。 问题的解决方案
技术解决方案
[0011] 本发明为解决上述技术问题而采用的技术方案是提供一种背部悬空下沉式电动 护理床架， 包括头面板、 背面板、 臀部面板、 大腿面板和小腿面板， 所述背面 板下方设置有背部推杆电机和腿部推杆电机， 所述腿部推杆电机通过剪刀撑组 件驱动臀部面板、 小腿面板前后移动并与底座保持平行， 其中， 所述背面板下 部的四分之一到二分之一处设置有背面板转轴， 所述背面板通过立柱固定在底 座上， 所述立柱的一端固定在底座上， 另一端和背面板转轴相连， 所述背部推 杆电机的前端转轴与背面板相连， 后端转轴与底座固定相连； 所述背部推杆电 机的前端转轴、 后端转轴以及背面板转轴形成一个三角形来定位背面板角度。
[0012] 上述的背部悬空下沉式电动护理床架， 其中， 所述头面板通过铰链与背面板转 动连接； 所述头面板上设有头部电机前固定件， 所述背面板上设有头部电机后 固定件， 所述头部电机前固定件和头部电机后固定件通过头部推杆电机相连来 调节头面板与背面板的相对角度。
[0013] 上述的背部悬空下沉式电动护理床架， 其中， 所述头面板与背面板为同一面板 [0014] 上述的背部悬空下沉式电动护理床架， 其中， 所述背面板转轴位于背面板下部 三分之一处。
[0015] 上述的背部悬空下沉式电动护理床架， 其中， 所述大腿面板一端通过铰链和臀 部面板转动连接， 另一端通过铰链和小腿面板转动连接； 所述臀部面板下并排 设置两个通过中间转轴相连的第一剪刀撑， 所述小腿面板下并排设置两个通过 中间转轴相连的第二剪刀撑； 两个第一剪刀撑的四端自由滑动， 两个第二剪刀 撑的右下端固定在底座上， 另外三端自由滑动； 两个第二剪刀撑的左下端通过 剪刀撑推杆相连， 所述剪刀撑推杆和腿部推杆电机相连。
[0016] 上述的背部悬空下沉式电动护理床架， 其中， 每个第一剪刀的四端通过滚动轴 承设置在轴承滑槽中； 每个第二剪刀撑的右下端设有固定旋转轴， 另外三端通 过滚动轴承设置在轴承滑槽中。
[0017] 上述的背部悬空下沉式电动护理床架， 其中， 所述背部推杆电机和腿部推杆电 机并排设置， 并通过双电机后固定件固定在在底座上。
[0018] 上述的背部悬空下沉式电动护理床架， 其中， 所述背部推杆电机采用反装方式 ， 通过回拉控制背面板的升起角度。
发明的有益效果
有益效果
[0019] 本发明提供的背部悬空下沉式电动护理床架， 通过将背面板转轴安装位置在背 面板的中间或中间偏下位置， 而不是底端位置， 使得臀部位置下沉， 能够避免 靠背支架起身吋和床垫之间造成大幅错位， 减轻床垫和人体大幅错位摩擦产生 的推背感和拉扯感， 进而减轻错位产生的噪音， 提高电动床使用的舒适性。 对附图的简要说明
附图说明
[0020] 图 1为现有电动床架结构及背部转轴安装示意图；
[0021] 图 2为本发明背部悬空下沉式电动护理床架放平吋结构示意图；
[0022] 图 3为本发明背部悬空下沉式电动护理床架放平吋侧面结构示意图；
[0023] 图 4为本发明电动床架靠背升起吋形成三角定位背面板角度示意图；
[0024] 图 5为本发明背部悬空下沉式电动护理床架头部靠背升起、 腿放平吋侧面结构 示意图；
[0025] 图 6为本发明背部悬空下沉式电动护理床架靠背升起吋结构示意图；
[0026] 图 7为本发明背部悬空下沉式电动护理床架靠背升起吋侧面结构示意
[0027] 图 8为本发明电动床架的剪刀撑运动示意图。
[0028]
[0029] 图中：
[0030] 1头面板 2背面板 3臀部面板
[0031] 4大腿面板 5小腿面板 6铰链
[0032] 7底座 8背部推杆电机 9腿部推杆电机
[0033] 10双电机后固定件 11头部推杆电机 12头部电机前固定件
[0034] 13头部电机后固定件 14 背面板转轴 15中间转轴
[0035] 16轴承轴 17轴承 18轴承滑槽
[0036] 19推杆顶头 20轴承盖板 21剪刀撑推杆
[0037] 22立柱 23第一剪刀撑 24第二剪刀撑
[0038] 801前端转轴 802后端转轴 803电机推杆
[0039]
具体实施方式
[0040] 下面结合附图和实施例对本发明作进一步的描述。
[0041] 图 2为本发明背部悬空下沉式电动护理床架放平吋结构示意图； 图 3为本发明背 部悬空下沉式电动护理床架放平吋侧面结构示意图； 图 4为本发明电动床架靠背 升起吋形成三角定位背面板角度示意图。
[0042] 请参见图 2、 图 3和图 4， 本发明提供的背部悬空下沉式电动护理床架， 包括头 面板 1、 背面板 2、 臀部面板 3、 大腿面板 4和小腿面板 5， 所述背面板 2下方设置 有背部推杆电机 8和腿部推杆电机 9， 所述腿部推杆电机 9通过剪刀撑组件驱动臀 部面板 3、 小腿面板 5前后移动并与底座 7保持平行， 其中， 所述背面板 2下部的 四分之一到二分之一处设置有背面板转轴 14， 所述背面板 2通过立柱 22固定在底 座 7上， 所述立柱 22的一端固定在底座 7上， 另一端和背面板转轴 14相连， 所述 背部推杆电机 8的前端转轴 801与背面板 2相连， 后端转轴 802与底座 7固定相连； 所述背部推杆电机 8的前端转轴 801、 后端转轴 802以及背面板转轴 14形成一个三 角形， 由电机推杆 803的行程来定位背面板角度。
[0043] 本发明将背面板转轴 14从原有的靠背臀部连接处， 也就是靠背支架最下端， 上 移到靠背支架的四分之一到二分之一处， 优选为三分之一处 （大约上移距离 d为 170mm) ， 这样设计之后， 使得旋转中心落到了人体背部下端， 从而让出空间 位置， 可以使背部推杆电机 8反装， 从原先的只有推力才能使靠背升起， 改为拉 力也可让靠背升起。 电机正反装是设计者自定义， 且各有利弊， 理论上电机推 杆的抗压强度高于抗拉强度， 实际使用中都不会有超过使它变形的力道。 正装 电机随着背部升起， 会暴露在外侧， 容易被人看到， 影响美观。 反装电机容易 隐藏， 长吋间使用电机拉力， 相对减少电机寿命。 靠背转轴的后移， 正反装电 机都可以， 看设计需要。
[0044] 由于转轴的上移， 靠背升起的过程就变成了两种相反过程， 背面板转轴 14之上 ， 即人体腰部以上， 头及背的大部分， 处于向上旋转动作状态， 而背面板转轴 1 4之下， 人体腰部以下的下半身， 特别是臀部， 都处于弯曲向下过程， 即是一种 下沉的状态。 两种相反动作使得床垫的位移相互抵消一部分， 靠背起身过程使 得人体背部与床垫的摩擦保持在很小的状态。
[0045] 此外， 背面板转轴 14 (起身转轴） 的上移使得背面板 2向上翻起的力道大大减 小， 电机推、 拉力的减小可以大大节约电动床耗电量。 下半身没有摩擦力的下 沉过程， 使得人们在使用中有一种悬浮式的感觉。
[0046] 请继续参见图 5， 本发明通过把背部起身转轴的后移可以明显直观的看到起身 状态的变化： 1) 背部变成两部分运动方向， 一边向上旋转， 一边向下旋转。 抵 消一部分扭矩， 减低电机工作压力。 2) 臀部位置有明显下降， 给人的感觉是一 种轻微的失重感， 且降低了床面高度， 有利于行动不便的人士上下床。 悬浮式 床架： 头、 靠升起， 腿放平状态， 靠背升起后， 臀部、 大腿、 小腿床架离地最 低位置的高度 h只有 127mm， 大大方便了使用者上下床。
[0047] 请继续参见图 6和图 7本发明的各面板之间可以由铰链 6装配连接， 铰链 6用螺丝 锁紧在面板上， 铰链 6用销轴做旋转轴。 如头面板 1通过铰链 6与背面板 2转动连 接。 头面板 1的角度则通过控制头部电机 11行程来调节头面板与背面板的相对角 度， 头部电机前固定件 12和头部电机后固定件 13用螺丝固定在各自面板上。
[0048] 本发明的臀部面板 3则由下面的第一剪刀撑 23保持其平行底座 7状态。 第一剪刀 撑 23的数目为两个， 通过中间转轴 15相连。 每个剪刀撑由剪刀撑杆、 轴承轴 16 、 轴承 17及轴承滑槽 18组合而成。 上轴承滑槽用螺丝固定在臀部面板上， 下轴 承滑槽用螺丝固定在底座 7上， 剪刀撑杆的一头穿上销轴定位在上轴承滑槽上， 其余三个位置由轴承 17在轴承滑槽 18中自由滑动。 大腿面板 4和前面的臀部面板 3， 以及后面的小腿面板 5通过面板铰链 6自由转动连接。
[0049] 小腿面板 5通过第二剪刀撑 24与底座保持平行， 第二剪刀撑 24的数目为两个， 通过中间转轴 15相连。 面板的高度则由腿部电机 9， 通过推杆顶头 19、 剪刀撑推 杆 21和轴承盖板 20， 控制行程调节剪刀撑角度， 从而调节小腿面板高度。 两个 第二剪刀撑 24的右下端 A固定在底座 7上， 另外三端 B自由滑动， 如图 8所示； 两 个第二剪刀撑 24的左下端通过剪刀撑推杆 21相连， 所述剪刀撑推杆 21和腿部推 杆电机 9相连。
[0050] 综上所述， 本发明将背面板转轴安装位置在背面板的中间或中间偏下位置， 而 不是底端位置， 使得臀部位置下沉； 具体优点如下： 1) 起身效果好， 消除推背 感； 2) 背部电机减小推力、 节省能耗； 3) 靠背升起后， 下半身起身高度低， 方便上下床。
[0051] 虽然本发明已以较佳实施例揭示如上， 然其并非用以限定本发明， 任何本领域 技术人员， 在不脱离本发明的精神和范围内， 当可作些许的修改和完善， 因此 本发明的保护范围当以权利要求书所界定的为准。

Claims

权利要求书
[权利要求 1] 一种背部悬空下沉式电动护理床架， 包括头面板 （1) 、 背面板 （2)
、 臀部面板 （3) 、 大腿面板 （4) 和小腿面板 （5) ， 所述背面板 (2 ) 下方设置有背部推杆电机 （8) 和腿部推杆电机 （9) ， 所述腿部推 杆电机 （9) 通过剪刀撑组件驱动臀部面板 （3) 、 小腿面板 （5) 前 后移动并与底座 （7) 保持平行， 其特征在于， 所述背面板 （2) 下部 的四分之一到二分之一处设置有背面板转轴 （14) ， 所述背面板 (2 ) 通过立柱 （22) 固定在底座 （7) 上， 所述立柱 （22) 的一端固定 在底座 （7) 上， 另一端和背面板转轴 （14) 相连， 所述背部推杆电 机 （8) 的前端转轴 （801) 与背面板 （2) 相连， 后端转轴 （802) 与 底座 （7) 固定相连； 所述背部推杆电机 （8) 的前端转轴 （801) 、 后端转轴 （802) 以及背面板转轴 （14) 形成一个三角形来定位背面 板角度。
[权利要求 2] 如权利要求 1所述的背部悬空下沉式电动护理床架， 其特征在于， 所 述头面板 （1) 通过铰链 （6) 与背面板 （2) 转动连接； 所述头面板
( 1) 上设有头部电机前固定件 （12) ， 所述背面板 （2) 上设有头部 电机后固定件 （13) ， 所述头部电机前固定件 （12) 和头部电机后固 定件 （13) 通过头部推杆电机 （11) 相连来调节头面板 （1) 与背面 板 （6) 的相对角度。
[权利要求 3] 如权利要求 1所述的背部悬空下沉式电动护理床架， 其特征在于， 所 述头面板 （1) 与背面板 （2) 为同一面板。
[权利要求 4] 如权利要求 1所述的背部悬空下沉式电动护理床架， 其特征在于， 所 述背面板转轴 （14) 位于背面板 （2) 下部三分之一处。
[权利要求 5] 如权利要求 1所述的背部悬空下沉式电动护理床架， 其特征在于， 所 述大腿面板 （4) 一端通过铰链 （6) 和臀部面板 （3) 转动连接， 另 一端通过铰链 （6) 和小腿面板 （5) 转动连接； 所述臀部面板 （3) 下并排设置两个通过中间转轴 （15) 相连的第一剪刀撑 （23) ， 所述 小腿面板 （5) 下并排设置两个通过中间转轴 （15) 相连的第二剪刀 撑 （24) ； 两个第一剪刀撑 （23) 的四端自由滑动， 两个第二剪刀撑 (24) 的右下端固定在底座 （7) 上， 另外三端自由滑动； 两个第二 剪刀撑 （24) 的左下端通过剪刀撑推杆 （21) 相连， 所述剪刀撑推杆 (21) 和腿部推杆电机 (9) 相连。
如权利要求 5所述的背部悬空下沉式电动护理床架， 其特征在于， 每 个第一剪刀的四端通过滚动轴承设置在轴承滑槽 （18) 中； 每个第二 剪刀撑 （24) 的右下端设有固定旋转轴， 另外三端通过滚动轴承设置 在轴承滑槽 ( 18) 中。
如权利要求 1所述的背部悬空下沉式电动护理床架， 其特征在于， 所 述背部推杆电机 （8) 和腿部推杆电机 （9) 并排设置， 并通过双电机 后固定件 （10) 固定在在底座 （7) 上。
如权利要求 1所述的背部悬空下沉式电动护理床架， 其特征在于， 所 述背部推杆电机 （8) 采用反装方式， 通过回拉控制背面板 （2) 的升 起角度。
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