WO2013033980A1 - 升降式病床 - Google Patents

升降式病床 Download PDF

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Publication number
WO2013033980A1
WO2013033980A1 PCT/CN2012/070346 CN2012070346W WO2013033980A1 WO 2013033980 A1 WO2013033980 A1 WO 2013033980A1 CN 2012070346 W CN2012070346 W CN 2012070346W WO 2013033980 A1 WO2013033980 A1 WO 2013033980A1
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WO
WIPO (PCT)
Prior art keywords
bed
chute
leg
pin
pin shaft
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Application number
PCT/CN2012/070346
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English (en)
French (fr)
Inventor
李路平
Original Assignee
宁波康麦隆医疗器械有限公司
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Publication date
Application filed by 宁波康麦隆医疗器械有限公司 filed Critical 宁波康麦隆医疗器械有限公司
Priority to US13/980,799 priority Critical patent/US9375373B2/en
Publication of WO2013033980A1 publication Critical patent/WO2013033980A1/zh

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Classifications

    • 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
    • A61G7/012—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame

Definitions

  • the invention relates to a hospital bed.
  • the common hinge structure is adopted between the connecting rod and the bed leg of the existing hospital bed, and the longitudinal displacement during the process of retracting the bed leg can not be compensated, and the longitudinal position of the bed leg to the ground relative to the bed is changed.
  • This brings about the overall movement of the bed. Since the bed is placed in one end of the wall, the legs that are usually far away from the wall are forced to retreat, accompanied by continuous vibration. This phenomenon usually causes discomfort to the patient. Especially for critically ill patients, the body is full of various tubes, and the impediment caused by the movement of the bed can cause serious consequences and affect rehabilitation. However, for various reasons, the bed must be able to lift and lower according to the specific requirements of the medical measures. How to reduce the displacement of the leg during the lifting process and to maintain the stability of the patient's posture and position has been a problem in the technical field.
  • the present invention provides a lifting bed which is kept stationary relative to the longitudinal position of the bed during the lifting process.
  • the lifting bed of the present invention comprises a bed base frame, wherein the bed base frame is supported by symmetrical bed legs on both sides of the bed base frame, and the bottom end of the bed leg is hinged to a first roller device in contact with the ground, characterized in that:
  • a second roller device is coupled to the upper end of the bed leg, and the second roller device is slidable in a track on the bed base, the track being parallel to the longitudinal of the bed base Axis
  • an inverting mechanism for changing the angle between the bed leg and the bed base, to lift the bed base
  • the turning mechanism comprises a connecting rod and a thrust of the upper end hinged to the bed base a lower end of the thrust mechanism is hinged to the connecting rod, and the thrust mechanism pushes and pulls the connecting rod to be reversed relative to the bed base frame;
  • the lower end of the connecting rod is fixed with a first connecting plate, and the first connecting plate has an intersecting first sliding slot and a second sliding slot; the first pin shaft and the first pin shaft fixed on the bed leg rod a second pin shaft, wherein the first pin shaft is slidably disposed in the first sliding slot, and the second pin shaft is slidably disposed in the second sliding slot.
  • first chute and the second chute are in a "T" shape inclined to the left, and the first chute is linear, forming a vertical shape of the "T” shape;
  • the second chute has an arc shape and constitutes a transverse direction of the "T" shape; when the bed base is at a low point, the first pin is located at the top of the first chute a second pin is located at the top of the second chute. When the bed base is at a high point, the first pin is located at the bottom of the first chute, and the second pin Located at the bottom of the second chute.
  • the second chute is disposed on the additional plate connected to the first connecting plate, and a height difference between the plane where the first sliding slot is located and the plane where the second sliding slot is located.
  • the second pin shaft is provided with a pulley, and the pulley slides in the second sliding slot to reduce friction.
  • a sliding sleeve is disposed on the first pin shaft, and the sliding sleeve slides in the first sliding slot to reduce friction; the convex ring of the head of the sliding sleeve is buckled on the side of the first sliding slot to prevent The first pin is disengaged from the first chute.
  • the sleeve is mounted on the first pin by a lock nut.
  • the thrust mechanism is a motor-driven worm gear mechanism
  • the push rod is a worm of the worm gear mechanism.
  • the first pin and the second pin are disposed on a second connecting plate fixed on the leg of the bed.
  • the invention presents a bilaterally symmetrical, symmetrical structure.
  • the motor rotates to drive the turbine
  • the turbine drives the worm to extend or retract.
  • the front end drive link of the worm is turned over with respect to the bed base frame, so that the two chutes of the connecting rod end of the connecting rod respectively drive the two pin shafts on the bed leg rod, and the bed leg rod is turned over.
  • the angle of the connecting rod relative to the bed base is increased, and the angle of the thrust mechanism relative to the connecting rod is reduced, so that the arm of the thrust mechanism pushing the connecting rod is lengthened, Therefore, during the rise of the bed, the thrust of the thrust mechanism can be gradually reduced, and the motor power can be reduced.
  • the reduction in motor power allows for the installation of smaller power motors while extending the life of the motor while reducing production costs.
  • the invention has the advantages that: the longitudinal position of the bed leg is not fixed relative to the hospital bed, which is favorable for the patient to maintain stability during the lifting process, and is beneficial to treatment and rehabilitation; secondly, the motor power can be reduced during the process of raising the bed, which is beneficial to the patient. Extend motor life and reduce costs.
  • Figure 1 is a schematic view showing the structure of the present invention in a raised state 2 is a schematic view showing the cooperation relationship between the chute of the first connecting rod at the end of the connecting rod and the pin on the leg leg in the state of FIG. 1.
  • Figure 3 is a schematic view showing the structure of the present invention in a descending state
  • Fig. 4 is a schematic view showing the cooperation relationship between the chute of the first connecting rod at the end of the connecting rod and the pin on the leg leg in the state of Fig. 2.
  • Fig. 5 is a perspective view showing the structure of the present invention in a raised state, showing a symmetrical half structure.
  • Figure 6 is a perspective view showing the structure of the present invention in a raised state at another viewing angle.
  • Figure 7 is a perspective view showing the structure of the present invention in a lowered state, showing a symmetrical half structure.
  • Figure 8 is a perspective view showing the structure of the present invention in a descending state at another viewing angle.
  • Figure 9 is a perspective view of the relationship between the chute on the first connecting plate at the end of the connecting rod and the pin on the leg leg.
  • the lifting bed of the present invention comprises a bed base 1 which is supported by a bed leg 2 symmetrically located on both sides of the bed base, the bottom of the leg 2 The end is hinged to the first roller device 3 in contact with the ground.
  • the upper end of the bed leg is connected with a second roller device 7, and the second roller device 7 is slidable in the track 8 on the bed base 1, the track 8 being parallel to the The longitudinal axis of the bed base 1 .
  • the inverting mechanism includes a connecting rod 4 having an upper end hinged to the bed base frame and a thrust mechanism 5, and a lower end of the thrust mechanism 5 is hinged to the connecting rod 4, The thrust mechanism 5 pushes and pulls the link 5 to flip relative to the bed base 1 .
  • the lower end of the connecting rod 4 is fixed with a first connecting rod 6, and the first connecting rod 6 has an intersecting first chute 61 and a second chute 62; the bed leg 1 is consolidated a first pin shaft 91 and a second pin shaft 92, wherein the first pin shaft 91 is slidably disposed in the first sliding groove 61, and the second pin shaft 92 is slidably disposed in the Inside the second chute 62.
  • the first chute 61 and the second chute 62 are in a "T" shape inclined to the left, and the first chute 61 is linear, forming a vertical shape of the "T” shape;
  • the second chute 62 is in the shape of an arc, forming a horizontal shape of the "T" shape; when the bed base 1 is at a low point, the first pin 91 is located at the first The top of the chute 61, the second pin 92 is located at the top of the second chute 62, and when the bed base is at a high point, the first pin 91 is located at the first slip At the bottom of the slot 61, the second pin 92 is located at the bottom of the second chute 62.
  • the first pin 91 and the second pin 92 are disposed on a second link 9 that is fixed to the leg leg 1.
  • the second pin shaft 92 is provided with a pulley 921 which slides in the second chute 62 to reduce friction.
  • the first pin shaft 91 is provided with a sliding sleeve 911, and the sliding sleeve 911 slides in the first sliding slot 91 to reduce friction; the convex ring of the head of the sliding sleeve 911 is buckled in the first sliding slot On the side of 61, the first pin shaft 91 is prevented from coming off the first chute 61.
  • the sleeve 911 is mounted on the first pin 91 by a lock nut 912.
  • the second chute 62 is disposed on the additional plate 621 connected to the first connecting plate 6, and the height of the plane between the plane of the first chute 61 and the plane of the second chute 62 is different. Due to the existence of this height difference, the first pin 91 always slides in the first chute 61, and the second pin 92 always slides in the second chute 62 to prevent the pin from going wrong.
  • the additional board 621 The sliding sleeve capable of blocking the end of the first pin shaft 91, the additional plate 521 is the end plate of the first sliding groove 61.
  • the thrust mechanism 5 is a motor-driven worm gear mechanism, and the worm of the worm gear mechanism constitutes a push rod that pushes the connecting rod.
  • the invention presents a bilaterally symmetrical, symmetrical structure.
  • Each of the front and rear ends of the hospital bed has a leg pole 2, and each of the leg poles 2 has a connecting rod 4 fitted thereto.
  • the links 4 on both sides of the same end are connected by a cross bar 41 which is hinged to the cross bar 41.

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

Abstract

一种升降式病床，包括床板基架（1）和床腿杆（2），床腿杆（2）的上端连接有第二滚轮装置（7），所述的第二滚轮装置（7）可滑行于所述的床板基架（1）上的轨道（8）中；还设有一个用于改变所述的床腿杆（2）与床板基架（1）的夹角、以升降床板基架（1）的翻转机构，所述的翻转机构包括上端铰接于所述的床板基架（1）的连杆和推动连杆（4）翻转的推力机构（5）；所述的连杆（4）的下端固结第一连扳（6），第一连扳（6）上有交叉的第一滑槽（61）和第二滑槽（62）；床腿杆（2）上的第一销轴（91）和第二销轴（92）可滑动地设置在第一滑槽（61）内和第二滑槽（62）内。在升降过程中可保持床腿杆（2）着地端不动，防止移动病人身体。

Description

升降式病床
(一） 技术领域
本发明涉及一种病床。
(二） 背景技术
现有病床的连杆与床腿杆之间采用普通铰接结构， 床腿杆收放过程中 的纵向位移无法得到补偿， 床腿杆着地端相对于病床的纵向位置就要发生 改变。 由此带来病床整体的移动。 由于病床的安放方式都是一端顶墙， 因 此在通常远离墙的床腿都被迫后退， 伴随着连续的振动。 这一现象通常给 病人带来不适。 尤其对于危重病人， 身上插满了各种管子， 病床移动带来 的牵连会引起严重的后果， 影响康复。 然而由于种种原因， 病床必须能够 按照医疗措施的具体要求进行升降。 如何在升降过程中减小床腿的位移， 保持病人姿态和位置的平稳， 一直是本技术领域的难题。
(三） 发明内容
为克服已有病床在升降过程中床腿移动的缺点， 本发明要提供一种在 升降过程中床腿相对病床的纵向位置保持不动的升降病床。
本发明所述的升降式病床， 包括床板基架， 所述的床板基架由对称的、 位于所述的床板基架两侧的床腿杆支撑， 所述的床腿杆的底端铰接于与地 面接触的第一滚轮装置， 其特征在于：
所述的床腿杆的上端连接有第二滚轮装置， 所述的第二滚轮装置可滑 行于所述的床板基架上的轨道中， 所述的轨道平行于所述的床板基架的纵 轴线； 还设有一个用于改变所述的床腿杆与床板基架的夹角、 以升降床板基 架的翻转机构，所述的翻转机构包括上端铰接于所述的床板基架的连杆和推 力机构， 所述的推力机构的下端铰接于所述的连杆， 所述的推力机构推动 和拉动所述的连杆相对于所述床板基架翻转；
所述的连杆的下端固结第一连扳， 所述的第一连扳上有交叉的第一滑 槽和第二滑槽； 所述的床腿杆上固结的第一销轴和第二销轴， 所述的第一 销轴可滑动地设置所述的第一滑槽内， 所述的第二销轴可滑动地设置在所 述的第二滑槽内。
进一步， 所述的第一滑槽和第二滑槽呈向左倾斜的 "T"字形， 所述的 第一滑槽呈直线状， 构成所述的 "T"字形的一竖； 所述的第二滑槽呈弧线 状， 构成所述的 "T"字形的一横； 当所述的床板基架位于低点时， 所述的 第一销轴位于所述的第一滑槽的顶部， 第二销轴位于所述的第二滑槽的顶 部， 当所述的床板基架位于高点时， 所述的第一销轴位于所述的第一滑槽 的底部， 第二销轴位于所述的第二滑槽的底部。
更进一步， 所述的第二滑槽设置在连接在所述的第一连扳的附加板上， 所述的第一滑槽所在平面与第二滑槽所在平面之间有高度差。
更进一步， 所述的第二销轴设有滑轮， 所述的滑轮在第二滑槽内滑行， 能够减小摩擦。 第一销轴上设有滑套， 所述的滑套在第一滑槽内滑行， 能 够减小摩擦； 所述的滑套的头部的凸环扣在第一滑槽的边上， 防止第一销 轴脱离第一滑槽。 所述的话套通过锁紧螺母安装在第一销轴上。
更进一步， 所述的推力机构是电机带动的涡轮蜗杆机构， 所述的推杆 是所述的涡轮蜗杆机构的蜗杆。 更进一步， 所述的第一销轴和第二销轴设置在固结在床腿杆上的第二 连扳上。
本发明呈现左右对称、 前后对称的结构。 病床的前端和后端的两侧各 有一个床腿杆， 每个床腿杆各有一个与之配合的连杆； 同一端的两侧的连 杆之间通过横杆连接， 所述的推力机构与所述的横杆铰接。 当电机转动带动涡轮， 涡轮驱动蜗杆前伸或后缩。 蜗杆的前端驱动连 杆相对于床板基架翻转， 于是连杆末端的连扳的两个滑槽分别驱动床腿杆 上的两个销轴， 牵动床腿杆翻转。 由于床腿杆的上端可以在床板基架中纵 向移动， 并且床腿杆与连杆特殊的铰接结构， 床腿杆与连杆的铰支点在滑 槽内移动， 补偿了床腿杆着地端在立起和放平过程中的纵向位移， 使得床 腿杆的着地端相对于病床的纵向位置保持不动。
另外， 本发明在升起过程中， 由于连杆相对于床板基架的角度的加大， 以及推力机构相对于连杆的角度的变小， 使得推力机构推动连杆翻转的力 臂得到加长， 因此在病床升起过程中， 推力机构的推力可以逐步减小， 电 机功率可以减小。 而电机功率的减小， 可以安装较小功率的电机， 同时延 长电机寿命， 同时减低生产成本。
本发明的优点是： 床腿着地端的纵向位置相对于病床保持不动， 有利 于升降过程中病人保持平稳， 有利于治疗和康复； 其次， 病床升起过程中 电机功率的可以减小， 有利于延长电机寿命， 减低成本。
(四） 附图说明
图 1为本发明在升起状态的结构示意图 图 2为图 1状态下连杆末端的第一连扳的滑槽与床腿杆上的销轴的配合 关系示意图。
图 3为本发明在下降状态的结构示意图
图 4为图 2状态下连杆末端的第一连扳的滑槽与床腿杆上的销轴的配合 关系示意图。
图 5是本发明在升起状态的结构立体示意图， 显示对称的半部结构。 图 6是本发明在升起状态的、 在另一视角下的结构立体示意图 图 7是本发明在下降状态的结构立体示意图， 显示对称的半部结构。 图 8是本发明在下降状态的、 在另一视角下的结构立体示意图 图 9 是连杆末端的第一连扳上的滑槽与床腿杆上的销轴的立体配合关 系图
(五） 具体实施方式
下面结合附图对本发明作进一步描述。 参照附图：
本发明所述的升降式病床， 包括床板基架 1， 所述的床板基架 1由对称 地位于所述的床板基架两侧的床腿杆 2支撑， 所述的床腿杆 2的底端铰接 于与地面接触的第一滚轮装置 3。
所述的床腿杆的上端连接有第二滚轮装置 7，所述的第二滚轮装置 7可 滑行于所述的床板基架 1上的轨道 8中， 所述的轨道 8平行于所述的床板 基架 1的纵轴线。
还设有一个用于改变所述的床腿杆 2与床板基 1架的夹角、 以升降床 板基架 1 的翻转机构。 所述的翻转机构包括上端铰接于所述的床板基架的 连杆 4和推力机构 5， 所述的推力机构 5的下端铰接于所述的连杆 4， 所述 的推力机构 5推动和拉动所述的连杆 5相对于所述床板基架 1翻转。
所述的连杆 4的下端固结第一连扳 6，所述的第一连扳 6上有交叉的第 一滑槽 61和第二滑槽 62; 所述的床腿杆 1上固结的第一销轴 91和第二销 轴 92， 所述的第一销轴 91可滑动地设置所述的第一滑槽 61内， 所述的第 二销轴 92可滑动地设置在所述的第二滑槽 62内。
所述的第一滑槽 61和第二滑槽 62呈向左倾斜的 "T"字形， 所述的第 一滑槽 61呈直线状， 构成所述的 " T"字形的一竖； 所述的第二滑槽 62呈 弧线状， 构成所述的 "T"字形的一横； 当所述的床板基架 1位于低点时， 所述的第一销轴 91位于所述的第一滑槽 61的顶部， 第二销轴 92位于所述 的第二滑槽 62的顶部， 当所述的床板基架位于高点时， 所述的第一销轴 91 位于所述的第一滑槽 61的底部， 第二销轴 92位于所述的第二滑槽 62的底 部。
所述的第一销轴 91和第二销轴 92设置在固结在床腿杆 1上的第二连 扳 9上。第二销轴 92设有滑轮 921，所述的滑轮 921在第二滑槽 62内滑行， 能够减小摩擦。 第一销轴 91上设有滑套 911， 所述的滑套 911在第一滑槽 91内滑行， 能够减小摩擦； 所述的滑套 911的头部的凸环扣在第一滑槽 61 的边上， 防止第一销轴 91脱离第一滑槽 61。所述的滑套 911通过锁紧螺母 912安装在第一销轴 91上。
所述的第二滑槽 62设置在连接在所述的第一连扳 6的附加板 621上， 所述的第一滑槽 61所在平面与第二滑槽 62所在平面之间有高度差。 由于 这一高度差的存在， 使得第一销轴 91始终滑行于第一滑槽 61 内， 第二销 轴 92始终滑行于第二滑槽 62 内， 防止销轴走错路径。 同时， 附加板 621 能够阻挡第一销轴 91端部的滑套， 所附加板构 521成了第一滑槽 61的端 板。
所述的推力机构 5是电机带动的涡轮蜗杆机构， 所述的涡轮蜗杆机构 的蜗杆构成推动所述的连杆的推杆。
本发明呈现左右对称、 前后对称的结构。 病床的前端和后端的两侧各 有一个床腿杆 2， 每个床腿杆 2各有一个与之配合的连杆 4。 同一端的两侧 的连杆 4之间通过横杆 41连接， 所述的推杆与所述的横杆 41铰接。 本说明书实施例所述的内容仅仅是对发明构思的实现形式的列举， 本 发明的保护的范围不应当被视为仅限于实施例所陈述的具体形式， 本发明 的保护范围也及于本领域技术人员根据本发明构思所能够想到的等同技术 手段。

Claims

权 利 要 求 书
1.升降式病床， 包括床板基架， 所述的床板基架由对称的、 位于 所述的床板基架两侧的床腿杆支撑，所述的床腿杆的底端铰接于与地 面接触的第一滚轮装置， 其特征在于：
所述的床腿杆的上端连接有第二滚轮装置，所述的第二滚轮装置 可滑行于所述的床板基架上的轨道中，所述的轨道平行于所述的床板 基架的纵轴线；
还设有一个用于改变所述的床腿杆与床板基架的夹角、以升降床 板基架的翻转机构,所述的翻转机构包括上端铰接于所述的床板基架 的连杆和推力机构， 所述的推力机构的下端铰接于所述的连杆， 所述 的推力机构推动和拉动所述的连杆相对于所述床板基架翻转；
所述的连杆的下端固结第一连扳，所述的第一连扳上有交叉的第 一滑槽和第二滑槽； 所述的床腿杆上固结的第一销轴和第二销轴， 所 述的第一销轴可滑动地设置所述的第一滑槽内，所述的第二销轴可滑 动地设置在所述的第二滑槽内。
2.如权利要求 1所述的升降式病床， 其特征在于： 所述的第一滑 槽和第二滑槽呈向左倾斜的 "T"字形， 所述的第一滑槽呈直线状， 构成所述的 "T"字形的一竖； 所述的第二滑槽呈弧线状， 构成所述 的 "T"字形的一横； 当所述的床板基架位于低点时， 所述的第一销 轴位于所述的第一滑槽的顶部， 第二销轴位于所述的第二滑槽的顶 部， 当所述的床板基架位于高点时， 所述的第一销轴位于所述的第一 滑槽的底部， 第二销轴位于所述的第二滑槽的底部。
3.如权利要求 2所述的升降式病床， 其特征在于： 所述的第二滑 槽设置在连接在所述的第一连扳的附加板上，所述的第一滑槽所在平 面与第二滑槽所在平面之间有高度差。
4.如权利要求 3所述的升降式病床， 其特征在于： 所述的第二销 轴设有滑轮， 所述的滑轮在第二滑槽内滑行； 所述的第一销轴上设有 滑套， 所述的滑套在第一滑槽内滑行； 所述的滑套的头部的凸环扣在 第一滑槽的边上， 防止第一销轴脱离第一滑槽。
5.如权利要求 4所述的升降式病床， 其特征在于： 所述的第一销 轴和第二销轴设置在固结在床腿杆上的第二连扳上。
6.如权利要求 5所述的升降式病床， 其特征在于： 所述的推力机 构是电机带动的涡轮蜗杆机构，所述的推杆是所述的涡轮蜗杆机构的 蜗杆。
7.如权利要求 1-6之一所述的升降式病床， 其特征在于： 整体上 呈现左右对称、前后对称的结构， 所述的床板基架的前端和后端的两 侧各有一个床腿杆， 每个床腿杆各有一个与之配合的连杆； 同一端的 两侧的连杆之间通过横杆连接， 所述的推力机构与所述的横杆铰接。
PCT/CN2012/070346 2011-09-09 2012-01-13 升降式病床 WO2013033980A1 (zh)

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