CN112022536B - A bed swing mechanism for helping the elderly - Google Patents
A bed swing mechanism for helping the elderly Download PDFInfo
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- CN112022536B CN112022536B CN202010798363.XA CN202010798363A CN112022536B CN 112022536 B CN112022536 B CN 112022536B CN 202010798363 A CN202010798363 A CN 202010798363A CN 112022536 B CN112022536 B CN 112022536B
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- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- 230000017531 blood circulation Effects 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 230000002040 relaxant effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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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
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C21/00—Attachments for beds, e.g. sheet holders or bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
- A47C21/006—Oscillating, balancing or vibrating mechanisms connected to the bedstead
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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
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
-
- 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
- A61G7/053—Aids for getting into, or out of, bed, e.g. steps, chairs, cane-like supports
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/001—Apparatus for applying movements to the whole body
- A61H1/003—Rocking or oscillating around a horizontal axis transverse to the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/005—Moveable platforms, e.g. vibrating or oscillating platforms for standing, sitting, laying or leaning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0119—Support for the device
- A61H2201/0138—Support for the device incorporated in furniture
- A61H2201/0142—Beds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/12—Driving means
- A61H2201/1207—Driving means with electric or magnetic drive
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nursing (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Rehabilitation Tools (AREA)
Abstract
本发明公开了一种助老床摆动机构，包括上层框架、下层框架和支撑轴，上层框架中部固设的支撑轴通过轴承座安装于下层框架的中部；上层框架和下层框架之间通过摆动驱动机构连接；摆动驱动机构包括小幅度摆动驱动机构和大幅度倾斜驱动机构，小幅度摆动驱动机构中的齿轮与支撑轴间隙配合，齿轮与支撑轴通过电磁止动组件连接。本发明大幅度倾斜驱动机构既能辅助小幅度摆动驱动机构，使得小幅度摆动驱动机构驱动上层框架绕支撑轴小幅度摆动更为稳妥，给老年人提供更舒适的享受，又能与小幅度摆动驱动机构相互独立，使得大幅度倾斜驱动机构能够驱动上层框架绕支撑轴大幅度倾斜，可以辅助老人上下床，解决了轮椅与床之间转移困难的问题。
The invention discloses a swing mechanism of a bed for the elderly, comprising an upper frame, a lower frame and a support shaft. The support shaft fixed in the middle of the upper frame is installed in the middle of the lower frame through a bearing seat; the upper frame and the lower frame are driven by swinging Mechanism connection; the swing drive mechanism includes a small-amplitude swing drive mechanism and a large-scale tilt drive mechanism, the gears in the small-amplitude swing drive mechanism cooperate with the support shaft in a clearance fit, and the gear and the support shaft are connected by an electromagnetic stop assembly. The large-scale tilting driving mechanism of the present invention can assist the small-amplitude swinging driving mechanism, so that the small-amplitude swinging driving mechanism drives the upper frame to swing in a small-amplitude around the support shaft more stably, provides more comfortable enjoyment for the elderly, and can be compatible with the small-amplitude swinging. The driving mechanisms are independent of each other, so that the large-scale tilting driving mechanism can drive the upper frame to be greatly tilted around the support shaft, which can assist the elderly to get on and off the bed, and solve the problem of difficult transfer between the wheelchair and the bed.
Description
Technical Field
The invention relates to an old-age bed, in particular to a swinging mechanism of the old-age bed.
Background
In a society with serious aging, many old people need to be cared by children or hospitals, and for the old people who are not convenient to move and live, the bed in which the old people are located becomes the place where the old people are located in most of the time in one day, so that the bed capable of assisting the old people to conveniently live becomes a demand for the old people. The special old-person assisting bed for the old is not designed with pertinence in many places, the bed for the paralyzed patients is more available in the market, and for most of the old, the old-person assisting bed is most important to ensure the comfort of the old and facilitate the activities of getting on and off the bed, so that a mechanism which is suitable for the old to use and meets the requirements of comfort level and assisting the getting on and off the bed is urgently needed to be developed.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects and provides a swinging mechanism of an old-aged bed, the swinging mechanism adopts the technical scheme of the invention, the structure is simple, the connection is convenient, and the large-amplitude tilting driving mechanism can assist the small-amplitude swinging driving mechanism, so that the small-amplitude swinging driving mechanism can drive the upper frame to swing more stably in a small amplitude around the supporting shaft, more comfortable enjoyment is provided for the old, and the small-amplitude swinging driving mechanism can be mutually independent, so that the large-amplitude tilting driving mechanism can drive the upper frame to tilt in a large amplitude around the supporting shaft, the old can be assisted to get on or off the bed, and the problem of difficult transfer between a wheelchair and the bed is solved.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the swing mechanism of the old-fashioned bed comprises an upper layer frame, a lower layer frame and a support shaft, wherein the support shaft fixedly arranged in the middle of the upper layer frame is arranged in the middle of the lower layer frame through a bearing seat; the upper layer frame and the lower layer frame are connected through a swing driving mechanism; the swing driving mechanism comprises a small-amplitude swing driving mechanism and a large-amplitude tilt driving mechanism, wherein the small-amplitude swing driving mechanism is used for driving the supporting shaft to rotate to realize that the upper-layer frame swings around the supporting shaft in a small amplitude, the large-amplitude tilt driving mechanism is used for pushing and pulling the upper-layer frame to realize that the upper-layer frame tilts around the supporting shaft in a large amplitude, a gear in the small-amplitude swing driving mechanism is in clearance fit with the supporting shaft, and the gear is connected with the supporting shaft through an electromagnetic stopping assembly and is used for controlling whether the gear and the supporting shaft rotate together.
Furthermore, the large-amplitude inclination driving mechanism comprises a linear sliding module fixedly arranged on the lower layer frame and a first motor used for controlling the linear sliding module to slide, the linear sliding module comprises a spline lead screw, a spline nut and a sliding plate, and the sliding plate is connected with one end of the upper layer frame through a push-pull assembly; the sliding plate is fixedly provided with a spline nut and a guide sleeve; the spline female sleeve is arranged on the spline screw rod, and the guide sleeve is sleeved on the guide rod; both ends of the spline screw rod and both ends of the guide rod are respectively and rotatably supported on the first supporting beam and the second supporting beam in the lower layer frame; one end of the spline screw rod is connected with an output shaft of the first motor through a worm gear reducer arranged on a reducer longitudinal mounting plate, and the reducer longitudinal mounting plate is fixedly arranged in the lower-layer frame.
Furthermore, the small-amplitude swing driving mechanism comprises a gear, a sector block, a mounting seat fixedly arranged on the lower-layer frame and an arc-shaped gear ring capable of being meshed with the gear, wherein a rotating shaft is arranged at the circle center of the sector block, and two ends of the rotating shaft are respectively and rotatably supported on two lug plates of the mounting seat; the fan-shaped block is driven by an eccentric mechanism to swing; the circumference of the fan-shaped block is provided with an arc-shaped track and flanges positioned at two ends of the fan-shaped track; the arc-shaped gear ring is arranged on the fan-shaped block in a mode that an arc-shaped groove on the inner circumferential surface of the arc-shaped gear ring is in sliding connection with the arc-shaped track.
Furthermore, the eccentric mechanism comprises a second motor and an eccentric wheel, the second motor is fixedly arranged on the bottom plate of the mounting seat, and a horizontal output shaft of the second motor is fixedly arranged at the circle center of the eccentric wheel; the wheel surface of the eccentric wheel is hinged with one end of a first connecting rod, and the other end of the first connecting rod is hinged on the sector surface of the sector block.
Furthermore, the push-pull assembly comprises an upper push-pull rod and a lower push-pull rod which are arranged in parallel with the support shaft, and two ends of the upper push-pull rod are arranged on the lower surface of the upper layer frame through bearing seats; the two ends of the push-down pull rod are rotatably supported on the supporting blocks, and the two supporting blocks are fixedly arranged on the sliding plate in the linear sliding module; the push-down pull rod can be rotatably arranged at one end of the second connecting rod in a penetrating mode, and the other end of the second connecting rod can be rotatably sleeved on the upper push-pull rod in a sleeved mode.
Furthermore, the supporting shaft comprises a middle shaft shell for mounting the electromagnetic locking assembly and connecting shaft sections fixedly arranged on two sides of the middle shaft shell, end covers are in threaded connection with openings at two ends of the middle shaft shell, and the end covers are connected with the connecting shaft sections in a clamping mode through regular polygon convex blocks and regular polygon grooves; the free end part of the connecting shaft section is provided with a regular polygon connecting block, and the connecting shaft section is connected with a connecting plate fixedly arranged on the upper-layer frame in a mode of inserting the regular polygon connecting block into a regular polygon hole arranged on the connecting plate.
Furthermore, the electromagnetic locking assembly comprises a plurality of operation sliding blocks which are uniformly distributed along the circumferential direction of the intermediate shaft shell and are telescopically arranged on the intermediate shaft shell, and an electromagnetic telescopic driving mechanism which is used for controlling the operation sliding blocks to simultaneously extend out so that the gear and the supporting shaft can rotate together or retract simultaneously so that the gear and the supporting shaft can relatively rotate, wherein the electromagnetic telescopic driving mechanism comprises a hollow sliding shaft which is slidably arranged in the intermediate shaft shell and electromagnetic valves which are arranged on two sides of the hollow sliding shaft and fixedly arranged on the intermediate shaft shell, the hollow sliding shaft is slidably sleeved on the fixed shaft, and the hollow sliding shaft is controlled by the two electromagnetic valves to reciprocate on the fixed shaft; a plurality of running chutes are uniformly distributed on the hollow sliding shaft along the circumferential direction of the hollow sliding shaft, and the bottom wall of each running chute is a driving inclined plane for driving the running slide block to do telescopic motion; the lower end of the operating slide block is arranged on the driving inclined plane, the lower end of the operating slide block is fixedly connected with one end of a spring, and the other end of the spring penetrates through a guide chute on the driving inclined plane and is fixedly connected with a spring seat fixedly arranged on the fixed shaft; the upper end of the operating slide block extends out of the middle shaft shell and then is clamped and fixed with the clamping groove on the gear.
Furthermore, a guide sliding block which is in sliding fit with the guide sliding groove is fixedly arranged on the lower surface of the running sliding block.
Furthermore, the lower surface of the running slide block is a sliding inclined surface matched with the driving inclined surface.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) according to the swing mechanism of the old-people assisting bed, the upper-layer frame can be driven to swing around the supporting shaft in a small amplitude through the small-amplitude swing driving mechanism, so that the effects of relaxing muscles, enhancing blood circulation and relieving fatigue can be achieved, and better enjoyment is brought to the old; the upper-layer frame can be driven to be greatly inclined around the supporting shaft by the large-inclination driving mechanism, so that the old can be assisted to get on or off the bed, and the problem of difficult transfer between a wheelchair and the bed is solved;
(2) the invention relates to a swinging mechanism of an old-helping bed, which aims to ensure that small-amplitude swinging is more stable, a gear in a small-amplitude swinging driving mechanism is in clearance fit with a supporting shaft, the gear is connected with the supporting shaft through an electromagnetic stopping component and is used for controlling whether the gear and the supporting shaft rotate together through the electromagnetic stopping component, when small-amplitude swinging is needed, the electromagnetic stopping component is controlled to ensure that the gear and the supporting shaft can rotate together, and then the small-amplitude swinging driving mechanism actively works to drive an upper-layer frame to swing around the supporting shaft in a small amplitude and simultaneously a large-amplitude tilting driving mechanism passively works under the action of rotation of the supporting shaft, and at the moment, the large-amplitude tilting driving mechanism assists the small-amplitude swinging driving mechanism to ensure that the upper-layer frame swings more; when the large-amplitude tilting is needed, the electromagnetic stop component is controlled to enable the gear and the supporting shaft to rotate relatively, so that the small-amplitude swinging driving mechanism and the large-amplitude tilting driving mechanism are mutually independent, and the large-amplitude tilting driving mechanism actively works to drive the upper-layer frame to tilt greatly around the supporting shaft;
(3) the swing mechanism of the old-helping bed has the advantages that the large-amplitude inclination driving mechanism is simple in structure, convenient to connect and ingenious in design, when the large-amplitude inclination state is implemented, the first motor works and drives the spline lead screw to rotate through the worm gear reducer, the spline lead screw can drive the sliding plate to slide through the rotation, and the sliding plate is connected with one end of the upper-layer frame through the push-pull assembly, so that the purpose of pushing and pulling the upper-layer frame is achieved through controlling the sliding of the sliding plate, and the purpose of large-amplitude inclination of the upper-layer frame around the supporting shaft is achieved; when the small-amplitude swinging state is implemented, the first motor does not work, one end of the spline screw rod passes through the worm and gear reducer and the output shaft of the first motor, and the worm and gear reducer has a self-locking function, so the spline screw rod cannot rotate;
(3) the small-amplitude swinging driving mechanism of the swing mechanism for the old-aged bed has a simple structure and is ingenious in design, and the small-amplitude swinging driving mechanism can realize small-amplitude swinging-stopping-small-amplitude swinging in the opposite direction during working, can drive the body of the old lying on the bed plate to swing, can achieve the effects of relaxing muscles, enhancing blood circulation and relieving fatigue, and brings better enjoyment to the old; the eccentric mechanism can drive the sector block to swing, and because the circumferential surface of the sector block is provided with the arc-shaped track and the flanges positioned at two ends of the sector-shaped track, and the arc-shaped gear ring is arranged on the sector block in a manner of sliding connection with the arc-shaped track through the arc-shaped groove on the inner circumferential surface of the arc-shaped gear ring, the arc-shaped gear ring and the gear do not have relative meshing motion in the swinging process of the sector block and the arc-shaped gear ring sliding on the arc-shaped track, and the sector block is in a stop-swinging state at; when the sector block swings and the arc-shaped gear ring impacts the flange, the arc-shaped gear ring is meshed with the gear, the gear and the supporting shaft can be driven to rotate together, and the sector block is in a swinging state;
(4) according to the swing mechanism of the old-helping bed, the end covers are in threaded connection with the openings at the two ends of the middle shaft shell, the end covers are connected with the connecting shaft sections in a clamping mode through the regular polygon convex blocks and the regular polygon grooves, the supporting shaft is fast and conveniently assembled, the end part of the free end of each connecting shaft section is provided with the regular polygon connecting block, the connecting shaft sections are connected with the connecting plates fixedly arranged on the upper-layer frame in a mode that the regular polygon connecting blocks are inserted into the regular polygon holes formed in the connecting plates, and the supporting shaft is conveniently connected with the upper-layer frame;
(5) the swinging mechanism of the old-people-assisting bed has the advantages that the electromagnetic locking assembly is simple in structure and convenient to connect, switching between large-amplitude tilting motion and small-amplitude swinging motion can be achieved by controlling the electromagnetic locking assembly, the electromagnetic telescopic driving mechanism can control the plurality of operating sliding blocks to simultaneously extend out or retract, further the control gear and the supporting shaft to rotate together or the control gear and the supporting shaft to rotate relatively, when one of the two electromagnetic valves is electrified, the hollow sliding shaft is adsorbed to the electrified electromagnetic valve to move, and the two electromagnetic valves are alternatively electrified to control the hollow sliding shaft to do reciprocating motion; when the operation sliding blocks ascend along the driving inclined plane, the operation sliding blocks simultaneously extend out under the action of the driving inclined plane, the gear and the supporting shaft are connected together in a mode that the operation sliding blocks are clamped with clamping grooves in the gear, and when the operation sliding blocks descend along the driving inclined plane, the operation sliding blocks retract simultaneously under the action of the springs, so that the gear and the supporting shaft are restored to a clearance fit state;
(6) according to the swing mechanism of the old-fashioned bed, the guide sliding block in sliding fit with the guide sliding chute is fixedly arranged on the lower surface of the operation sliding block, and the sliding inclined surface matched with the driving inclined surface is arranged on the lower surface of the operation sliding block, so that the operation sliding block can move more stably.
Drawings
FIG. 1 is a schematic structural view of a swing mechanism of an old-fashioned bed according to the present invention;
FIG. 2 is a schematic view of a connection structure of a small-amplitude swing driving mechanism and a support shaft in the swing mechanism of the old-fashioned bed according to the present invention;
FIG. 3 is a schematic structural diagram of a small-amplitude swing driving mechanism in a swing mechanism of an old-fashioned bed according to the present invention;
FIG. 4 is a schematic view of a connection structure of a large-amplitude tilt driving mechanism, a support shaft and a push rod assembly in the swinging mechanism of the old-fashioned bed according to the present invention;
FIG. 5 is a schematic structural view of an electromagnetic locking assembly mounted on a middle shaft housing of a swinging mechanism of an old-fashioned bed according to the present invention;
FIG. 6 is a cross-sectional view of an electromagnetic locking assembly mounted on a middle shaft housing of a swinging mechanism of an old-fashioned bed according to the present invention;
fig. 7 is a schematic structural view of a hollow sliding shaft in the swinging mechanism of the old-fashioned bed of the invention.
The reference numerals in the schematic drawings illustrate: 1. an upper frame; 2. a lower layer frame; 3. a support shaft; 3-1, a middle shaft shell; 3-2, connecting the shaft section; 3-3, connecting blocks in regular polygon shape; 3-4, end cover; 3-4-1, a regular polygonal bump; 4. a gear; 4-1, a clamping groove; 5. a first motor; 6-1, spline screw rod; 6-2, a spline nut; 6-3, a sliding plate; 6-4, guide sleeve; 6-5, a guide rod; 6-6, worm gear reducer; 7-1, mounting seats; 7-2, fan-shaped blocks; 7-2-1, arc track; 7-2-2, and a flange; 7-3, a rotating shaft; 7-4, arc-shaped gear rings; 7-4-1, arc groove; 7-5, a second motor; 7-6, an eccentric wheel; 7-7, a first connecting rod; 8-1, mounting a push-pull rod; 8-2, pushing down the pull rod; 8-3, supporting blocks; 8-4, a second connecting rod; 9-1, an electromagnetic valve; 9-2, operating a sliding block; 9-2-1, a guide slide block; 9-2-2, sliding slope; 9-3, a hollow sliding shaft; 9-3-1, running a chute; 9-3-2, driving the inclined plane; 9-3-3, a guide chute; 9-4, fixing the shaft; 9-5, a spring; 9-6, a spring seat; 10. a connecting plate.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Examples
With reference to fig. 1, the swing mechanism of the old-fashioned bed of this embodiment includes an upper frame 1, a lower frame 2 and a support shaft 3, wherein the support shaft 3 fixed at the middle of the upper frame 1 is installed at the middle of the lower frame 2 through a bearing seat; in the embodiment, the supporting shaft 3 (shown in figure 2) comprises a middle shaft shell 3-1 for mounting the electromagnetic locking component and connecting shaft sections 3-2 fixedly arranged at two sides of the middle shaft shell 3-1, end covers 3-4 are respectively in threaded connection with openings at two ends of the middle shaft shell 3-1, the end covers are connected with the connecting shaft sections 3-2 in a clamping manner through regular polygonal convex blocks 3-4-1 and regular polygonal grooves, and the supporting shaft is fast and conveniently assembled; the end part of the free end of the connecting shaft section 3-2 is provided with a regular polygon connecting block 3-3, the connecting shaft section 3-2 is connected with a connecting plate 10 fixedly arranged on the upper layer frame 1 in a mode that the regular polygon connecting block 3-3 is inserted into a regular polygon hole arranged on the connecting plate 10, and the connection between the supporting shaft and the upper layer frame is convenient; the connecting shaft section 3-2 is arranged in the middle of the upper surface of the lower-layer frame 2 through a bearing seat positioned on the inner side, and the connecting shaft section 3-2 is arranged in the middle of the lower surface of the upper-layer frame 1 through a bearing seat positioned on the outer side;
the upper layer frame 1 and the lower layer frame 2 are connected through a swing driving mechanism; the swing driving mechanism comprises a small-amplitude swing driving mechanism for realizing small-amplitude swing of the upper frame 1 around the support shaft 3 by driving the support shaft 3 to rotate and a large-amplitude tilt driving mechanism for realizing large-amplitude tilt of the upper frame 1 around the support shaft 3 by pushing and pulling the upper frame 1, and the small-amplitude swing driving mechanism can drive the upper frame to swing around the support shaft in a small amplitude, so that the effects of relaxing muscles, enhancing blood circulation and relieving fatigue can be achieved, and better enjoyment is brought to the old; the upper-layer frame can be driven to be greatly inclined around the supporting shaft by the large-inclination driving mechanism, so that the old can be assisted to get on or off the bed, and the problem of difficult transfer between a wheelchair and the bed is solved;
continuously, in order to ensure that the small-amplitude swing is more stable, a gear 4 in the small-amplitude swing driving mechanism is in clearance fit with a support shaft 3, the gear 4 is connected with the support shaft 3 through an electromagnetic stop component and used for controlling whether the gear 4 and the support shaft 3 rotate together through the electromagnetic stop component, when the small-amplitude swing is needed, the electromagnetic stop component is controlled to enable the gear and the support shaft to rotate together, and then the small-amplitude swing driving mechanism actively works to drive the upper-layer frame to swing around the support shaft in a small amplitude and meanwhile the large-amplitude tilt driving mechanism passively works under the action of the rotation of the support shaft, and at the moment, the large-amplitude tilt driving mechanism assists the small-amplitude swing driving mechanism to enable the upper-layer frame to swing in a; when the large-amplitude tilting mechanism needs to tilt greatly, the electromagnetic stop assembly is controlled to enable the gear and the supporting shaft to rotate relatively, so that the small-amplitude swinging driving mechanism and the large-amplitude tilting driving mechanism are independent from each other, and the large-amplitude tilting driving mechanism actively works to drive the upper-layer frame to tilt greatly around the supporting shaft.
Continuing and combining with a figure 4, the large-amplitude inclination driving mechanism comprises a linear sliding module fixedly arranged on the lower layer frame 2 and a first motor 5 used for controlling the linear sliding module to slide and work, the linear sliding module comprises a spline screw rod 6-1, a spline nut 6-2 and a sliding plate 6-3, and the spline nut 6-2 and a guide sleeve 6-4 are fixedly arranged on the sliding plate 6-3; the spline nut 6-2 is sleeved on the spline screw rod 6-1, and the guide sleeve 6-4 is sleeved on the guide rod 6-5; both ends of the spline screw rod 6-1 and both ends of the guide rod 6-5 are respectively and rotatably supported on a first supporting beam and a second supporting beam in the lower layer frame 2; one end of the spline screw 6-1 is connected with an output shaft of the first motor 5 through a worm gear reducer 6-6 arranged on a reducer longitudinal mounting plate which is fixedly arranged in the lower layer frame 2; the sliding plate 6-3 is connected with one end of the upper layer frame 1 through a push-pull component; in the embodiment, the push-pull assembly comprises an upper push-pull rod 8-1 and a lower push-pull rod 8-2 which are arranged in parallel with the support shaft 3, and both ends of the upper push-pull rod 8-1 are arranged on the lower surface of the upper layer frame 1 through bearing seats; two ends of the push-down pull rod 8-2 are rotatably supported on the supporting blocks 8-3, and the two supporting blocks 8-3 are fixedly arranged on the sliding plate 6-3 in the linear sliding module; the lower push-pull rod 8-2 is rotatably arranged at one end of the second connecting rod 8-4 in a penetrating way, and the other end of the second connecting rod 8-4 is rotatably sleeved on the upper push-pull rod 8-1;
the large-amplitude inclination driving mechanism is simple in structure, convenient to connect and ingenious in design, when the large-amplitude inclination state is implemented, the first motor works and drives the spline lead screw to rotate through the worm gear reducer, the spline lead screw rotates to drive the sliding plate to slide, and the sliding plate is connected with one end of the upper frame through the push-pull assembly, so that the purpose of pushing and pulling the upper frame is achieved by controlling the sliding of the sliding plate, and the purpose of large-amplitude inclination of the upper frame around the supporting shaft is further achieved; when the small-amplitude swinging state is implemented, the first motor does not work, one end of the spline screw rod passes through the worm and gear reducer and the output shaft of the first motor, and the worm and gear reducer has a self-locking function, so that the spline screw rod cannot rotate.
Continuing and combining with the drawings 2 and 3, the small-amplitude swing driving mechanism comprises a gear 4, a sector 7-2, a mounting seat 7-1 fixedly arranged on the lower layer frame 2 and an arc-shaped gear ring 7-4 capable of being meshed with the gear 4, wherein a rotating shaft 7-3 is arranged at the circle center of the sector 7-2, and two ends of the rotating shaft 7-3 are respectively and rotatably supported on two lug plates of the mounting seat 7-1; the sector block 7-2 is driven by an eccentric mechanism to swing; an arc-shaped track 7-2-1 and flanges 7-2-2 positioned at two ends of the sector-shaped track 7-2-1 are processed on the circumferential surface of the sector-shaped block 7-2; the arc-shaped gear ring 7-4 is arranged on the sector block 7-2 in a manner of sliding connection between an arc-shaped groove 7-4-1 on the inner circumferential surface of the arc-shaped gear ring 7-4 and the arc-shaped track 7-2-1; the eccentric mechanism in the embodiment comprises a second motor 7-5 and an eccentric wheel 7-6, wherein the second motor 7-5 is fixedly arranged on a bottom plate of the mounting seat 7-1, and a horizontal output shaft of the second motor 7-5 is fixedly arranged at the circle center of the eccentric wheel 7-6; the wheel surface of the eccentric wheel 7-6 is hinged with one end of a first connecting rod 7-7, and the other end of the first connecting rod 7-7 is hinged on the sector surface of the sector block 7-2;
the small-amplitude swing driving mechanism has a simple structure and is ingenious in design, and the small-amplitude swing driving mechanism can realize small-amplitude swing-stop-reverse small-amplitude swing when working, can drive the body of the old lying on the bed plate to swing, can achieve the effects of relaxing muscles, enhancing blood circulation and relieving fatigue, and brings better enjoyment to the old; the eccentric mechanism can drive the sector block to swing, and because the circumferential surface of the sector block is provided with the arc-shaped track and the flanges positioned at two ends of the sector-shaped track, and the arc-shaped gear ring is arranged on the sector block in a manner of sliding connection with the arc-shaped track through the arc-shaped groove on the inner circumferential surface of the arc-shaped gear ring, the arc-shaped gear ring and the gear do not have relative meshing motion in the swinging process of the sector block and the arc-shaped gear ring sliding on the arc-shaped track, and the sector block is in a stop-swinging state at; when the sector block swings and the arc-shaped gear ring impacts the flange, the arc-shaped gear ring is meshed with the gear, the gear and the supporting shaft can be driven to rotate together, and the sector block is in a swinging state at the moment.
Continuing and combining with the figures 5, 6 and 7, the electromagnetic stopping component comprises a plurality of operating sliders 9-2 which are uniformly distributed along the circumference of the intermediate shaft shell 3-1 and telescopically arranged on the intermediate shaft shell 3-1 and an electromagnetic telescopic driving mechanism which is used for controlling the plurality of operating sliders 9-2 to simultaneously extend out to enable the gear 4 and the supporting shaft 3 to rotate together or simultaneously retract to enable the gear 4 and the supporting shaft 3 to rotate relatively, the electromagnetic telescopic driving mechanism comprises a hollow sliding shaft 9-3 which is slidably arranged in the intermediate shaft shell 3-1 and an electromagnetic valve 9-1 which is arranged at two sides of the hollow sliding shaft 9-3 and fixedly arranged on the intermediate shaft shell 3-1, the hollow sliding shaft 9-3 is slidably sleeved on the fixed shaft 9-4, the hollow sliding shaft 9-3 is controlled by two electromagnetic valves 9-1 to reciprocate on a fixed shaft 9-4; a plurality of running chutes 9-3-1 are uniformly distributed on the hollow sliding shaft 9-3 along the circumferential direction of the hollow sliding shaft, and the bottom wall of each running chute 9-3-1 is a driving inclined surface 9-3-2 for driving the running slide block to do telescopic motion; the lower end of the operating slide block 9-2 is arranged on the driving inclined plane 9-3-2, the lower end of the operating slide block 9-2 is fixedly connected with one end of a spring 9-5, and the other end of the spring 9-5 is fixedly connected with a spring seat 9-6 fixedly arranged on the fixed shaft 9-4 after penetrating through a guide chute 9-3-3 on the driving inclined plane 9-3-2; the upper end of the operating slide block 9-2 extends out of the middle shaft shell 3-1 and then is clamped and fixed with a clamping groove 4-1 on the gear 4; in order to ensure that the operation sliding block moves more stably, the lower surface of the operation sliding block 9-2 is fixedly provided with a guide sliding block 9-2-1 which is in sliding fit with the guide sliding chute 9-3-3, and the lower surface of the operation sliding block 9-2 is a sliding inclined surface 9-2-2 which is matched with the driving inclined surface 9-3-2;
the electromagnetic locking assembly is simple in structure and convenient to connect, switching of large-amplitude tilting motion and small-amplitude swinging motion can be achieved by controlling the electromagnetic locking assembly, the electromagnetic telescopic driving mechanism can control the plurality of running sliding blocks to simultaneously extend out or retract back, further the control gear and the supporting shaft to rotate together or the control gear and the supporting shaft to rotate relatively, when one of the two electromagnetic valves is electrified, the hollow sliding shaft is adsorbed to the electrified electromagnetic valve to move, and the two electromagnetic valves are alternatively electrified to control the hollow sliding shaft to do reciprocating motion; when the operation sliding blocks ascend along the driving inclined plane, the operation sliding blocks simultaneously extend out under the action of the driving inclined plane, the gear and the supporting shaft are connected together in a mode that the operation sliding blocks are clamped with clamping grooves in the gear, and when the operation sliding blocks descend along the driving inclined plane, the operation sliding blocks retract simultaneously under the action of the springs, so that the gear and the supporting shaft are in clearance fit.
The swinging mechanism of the old-aged bed has the advantages that the structure is simple, the connection is convenient, the large-amplitude tilting driving mechanism can assist the small-amplitude swinging driving mechanism, so that the small-amplitude swinging driving mechanism drives the upper frame to swing stably in a small amplitude around the supporting shaft, more comfortable enjoyment is provided for the old, the large-amplitude tilting driving mechanism can drive the upper frame to tilt in a large amplitude around the supporting shaft, the old can be assisted to get on or off the bed, and the problem of difficulty in transfer between a wheelchair and the bed is solved.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (8)
1. The utility model provides a helping old bed swing mechanism which characterized in that: the support shaft device comprises an upper layer frame (1), a lower layer frame (2) and a support shaft (3), wherein the support shaft (3) fixedly arranged in the middle of the upper layer frame (1) is arranged in the middle of the lower layer frame (2) through a bearing seat; the upper layer frame (1) is connected with the lower layer frame (2) through a swing driving mechanism; the swing driving mechanism comprises a small-amplitude swing driving mechanism and a large-amplitude tilt driving mechanism, wherein the small-amplitude swing driving mechanism is used for driving the support shaft (3) to rotate to realize that the upper-layer frame (1) swings around the support shaft (3) in a small amplitude, the large-amplitude tilt driving mechanism is used for realizing that the upper-layer frame (1) tilts around the support shaft (3) in a large amplitude by pushing and pulling the upper-layer frame (1), a gear (4) in the small-amplitude swing driving mechanism is in clearance fit with the support shaft (3), and the gear (4) is connected with the support shaft (3) through an electromagnetic stopping assembly and used for controlling whether the gear (4) and the support shaft (3) rotate together or not through; the electromagnetic stopping component comprises a plurality of operating sliding blocks (9-2) which are uniformly distributed along the circumferential direction of a middle shaft shell (3-1) of the supporting shaft (3) and are telescopically arranged on the middle shaft shell (3-1) and an electromagnetic telescopic driving mechanism which is used for controlling the plurality of operating sliding blocks (9-2) to simultaneously extend out so that the gear (4) and the supporting shaft (3) can rotate together or simultaneously retract so that the gear (4) and the supporting shaft (3) can relatively rotate, the electromagnetic telescopic driving mechanism comprises a hollow sliding shaft (9-3) which is slidably arranged in the middle shaft shell (3-1) and electromagnetic valves (9-1) which are arranged at two sides of the hollow sliding shaft (9-3) and are fixedly arranged on the middle shaft shell (3-1), the hollow sliding shaft (9-3) is slidably sleeved on the fixed shaft (9-4), the hollow sliding shaft (9-3) is controlled by two electromagnetic valves (9-1) to reciprocate on the fixed shaft (9-4); a plurality of running chutes (9-3-1) are uniformly distributed on the hollow sliding shaft (9-3) along the circumferential direction of the hollow sliding shaft, and the bottom wall of each running chute (9-3-1) is a driving inclined plane (9-3-2) for driving the running slide block to do telescopic motion; the lower end of the operating slide block (9-2) is arranged on the driving inclined plane (9-3-2), the lower end of the operating slide block (9-2) is fixedly connected with one end of a spring (9-5), and the other end of the spring (9-5) penetrates through a guide chute (9-3-3) on the driving inclined plane (9-3-2) and then is fixedly connected with a spring seat (9-6) fixedly arranged on the fixed shaft (9-4); the upper end of the operating slide block (9-2) extends out of the middle shaft shell (3-1) and then is clamped and fixed with the clamping groove (4-1) on the gear (4).
2. The swing mechanism of an old-fashioned bed according to claim 1, wherein: the large-amplitude inclination driving mechanism comprises a linear sliding module fixedly arranged on the lower-layer frame (2) and a first motor (5) used for controlling the linear sliding module to slide, the linear sliding module comprises a spline lead screw (6-1), a spline nut (6-2) and a sliding plate (6-3), and the sliding plate (6-3) is connected with one end of the upper-layer frame (1) through a push-pull assembly; a spline nut (6-2) and a guide sleeve (6-4) are fixedly arranged on the sliding plate (6-3); the spline nut (6-2) is sleeved on the spline screw rod (6-1), and the guide sleeve (6-4) is sleeved on the guide rod (6-5); both ends of the spline screw rod (6-1) and both ends of the guide rod (6-5) are respectively and rotatably supported on a first supporting beam and a second supporting beam in the lower layer frame (2); one end of the spline screw rod (6-1) is connected with an output shaft of the first motor (5) through a worm and gear speed reducer (6-6) arranged on a speed reducer longitudinal mounting plate which is fixedly arranged in the lower-layer frame (2).
3. The swing mechanism of an old-fashioned bed according to claim 1, wherein: the small-amplitude swing driving mechanism comprises a gear (4), a sector (7-2), a mounting seat (7-1) fixedly arranged on the lower-layer frame (2) and an arc-shaped gear ring (7-4) capable of being meshed with the gear (4), wherein a rotating shaft (7-3) is arranged at the circle center of the sector (7-2), and two ends of the rotating shaft (7-3) are rotatably supported on two lug plates of the mounting seat (7-1) respectively; the fan-shaped block (7-2) is driven by an eccentric mechanism to swing; an arc-shaped track (7-2-1) and flanges (7-2-2) positioned at two ends of the fan-shaped track (7-2-1) are processed on the circumferential surface of the fan-shaped block (7-2); the arc-shaped gear ring (7-4) is arranged on the fan-shaped block (7-2) in a manner that an arc-shaped groove (7-4-1) on the inner circumferential surface of the arc-shaped gear ring (7-4) is in sliding connection with the arc-shaped track (7-2-1).
4. The swing mechanism of an old-fashioned bed according to claim 3, wherein: the eccentric mechanism comprises a second motor (7-5) and an eccentric wheel (7-6), the second motor (7-5) is fixedly arranged on a bottom plate of the mounting seat (7-1), and a horizontal output shaft of the second motor (7-5) is fixedly arranged at the circle center of the eccentric wheel (7-6); the wheel surface of the eccentric wheel (7-6) is hinged with one end of a first connecting rod (7-7), and the other end of the first connecting rod (7-7) is hinged on the sector surface of the sector block (7-2).
5. The swing mechanism of an old-fashioned bed according to claim 2, wherein: the push-pull assembly comprises an upper push-pull rod (8-1) and a lower push-pull rod (8-2) which are arranged in parallel with the support shaft (3), and two ends of the upper push-pull rod (8-1) are mounted on the lower surface of the upper layer frame (1) through bearing seats; both ends of the push-down pull rod (8-2) are rotatably supported on the supporting blocks (8-3), and the two supporting blocks (8-3) are fixedly arranged on the sliding plate (6-3) in the linear sliding module; the lower push-pull rod (8-2) is rotatably arranged at one end of the second connecting rod (8-4) in a penetrating way, and the other end of the second connecting rod (8-4) is rotatably sleeved on the upper push-pull rod (8-1).
6. The swing mechanism of an old-fashioned bed according to claim 1, wherein: the supporting shaft (3) comprises a middle shaft shell (3-1) for mounting the electromagnetic locking component and connecting shaft sections (3-2) fixedly arranged on two sides of the middle shaft shell (3-1), the openings at two ends of the middle shaft shell (3-1) are respectively in threaded connection with end covers (3-4), and the end covers and the connecting shaft sections (3-2) are connected in a clamping manner through regular polygon convex blocks (3-4-1) and regular polygon grooves; the free end of the connecting shaft section (3-2) is provided with a regular polygon connecting block (3-3), and the connecting shaft section (3-2) is connected with a connecting plate (10) fixedly arranged on the upper-layer frame (1) in a mode that the regular polygon connecting block (3-3) is inserted into a regular polygon hole arranged on the connecting plate (10).
7. The swing mechanism of an old-fashioned bed according to claim 1, wherein: the lower surface of the running slide block (9-2) is fixedly provided with a guide slide block (9-2-1) which is in sliding fit with the guide chute (9-3-3).
8. The swing mechanism of an old-fashioned bed according to claim 1, wherein: the lower surface of the running slide block (9-2) is a sliding inclined surface (9-2-2) matched with the driving inclined surface (9-3-2).
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| CN202010798363.XA CN112022536B (en) | 2020-08-11 | 2020-08-11 | A bed swing mechanism for helping the elderly |
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| CN114123644B (en) * | 2021-12-15 | 2024-06-14 | 海鹰企业集团有限责任公司 | Plane swinging mechanism and application method thereof |
| CN117718125A (en) * | 2024-02-08 | 2024-03-19 | 黑龙江科技大学 | A screening device for coal mine crushing |
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