CN113440388A - Anti-falling mechanism adaptive to walking aid - Google Patents
Anti-falling mechanism adaptive to walking aid Download PDFInfo
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- CN113440388A CN113440388A CN202110923525.2A CN202110923525A CN113440388A CN 113440388 A CN113440388 A CN 113440388A CN 202110923525 A CN202110923525 A CN 202110923525A CN 113440388 A CN113440388 A CN 113440388A
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- structural frame
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- transmission rod
- walking aid
- stop
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- 230000007246 mechanism Effects 0.000 title description 19
- 230000003044 adaptive effect Effects 0.000 title description 2
- 230000005540 biological transmission Effects 0.000 description 31
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000474 nursing effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 102100040428 Chitobiosyldiphosphodolichol beta-mannosyltransferase Human genes 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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- 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
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/04—Wheeled walking aids for patients or disabled persons
-
- 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
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/04—Wheeled walking aids for patients or disabled persons
- A61H2003/046—Wheeled walking aids for patients or disabled persons with braking means
-
- 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
- A61H2201/0173—Means for preventing injuries
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
本发明属于护理器械领域，提供了一种适配于助行器械的防摔机构，本防摔机构包括止动杆、结构架、主支撑架和车轮。整体防摔机构利用死点正常行进，遇到紧急情况可通过使用者下压助行器械进而传递给防摔机构一个竖直向下的力进而触发第二传动杆转动角度，使所述整体机构高度下降从而使所述止动杆触地进而急停防摔。本发明适配于多种助行器械上，互换性好，结构简单操作方便，对使用者的保护更加的全面，减少因为重心不稳跌倒对使用者造成的伤害，广泛的适配条件可降低更换防摔装置时的成本。使用时可以用较小的力触发，可以实现急停自锁功能，结构简单，不需要额外动力源，适配于多种助行器械。
The invention belongs to the field of nursing equipment, and provides an anti-fall mechanism adapted to a walking aid. The anti-fall mechanism includes a stop rod, a structural frame, a main support frame and a wheel. The overall anti-fall mechanism uses the dead point to travel normally. In case of emergency, the user can press down the walking aid to transmit a vertical downward force to the anti-fall mechanism to trigger the rotation angle of the second transmission rod, so that the overall mechanism The height is lowered so that the stop lever touches the ground to make an emergency stop to prevent falling. The invention is suitable for a variety of walking aids, has good interchangeability, simple structure and convenient operation, more comprehensive protection for the user, and reduces the damage caused to the user due to the unstable center of gravity. Reduce the cost of replacing the drop guard. The utility model can be triggered with a small force during use, and can realize the function of emergency stop and self-locking. The structure is simple, no additional power source is required, and it is suitable for various walking aids.
Description
Technical Field
The invention relates to the field of nursing appliances, in particular to an anti-falling mechanism suitable for a walking aid appliance.
Background
As the aging population of China increases year by year, the use of the walking aid is more and more common. The walking aid is an important nursing appliance, not only is a walking aid for the disabled and the old, but also is more important for the disabled and the old to do physical exercise and participate in social activities by the aid of the walking aid.
The prior walking aid is mostly provided with an emergency stop device, but has a plurality of problems: firstly, most emergency stop devices of walking aids have an emergency stop function by means of friction braking of brake pads, so that a user is easy to fall down when emergency stop is carried out in case of emergency danger, and the situation is possibly worsened due to serious falling injury because most users have obstacles in walking; secondly, most of the conventional emergency stop devices are active brakes, namely, a user can work only when actively operating, so that the reaction time left for the user is often short when the user is in danger in the actual situation, and the active brakes have certain hidden danger; thirdly, the slipping condition is easy to occur in the braking process, and the stability of the device after braking cannot be ensured; fourthly, the emergency stop device in the market has higher use cost, is accompanied by potential safety hazards such as noise, heating, aging and the like, and has some inconveniences when being used for a device which runs at low speed and light load.
Disclosure of Invention
The invention aims to solve the technical problem of providing an anti-falling mechanism which is simple in structure, high in emergency stop response speed and suitable for walking aids and can be manually restored after emergency stop.
The technical scheme adopted by the invention for solving the technical problems is as follows: an anti-falling mechanism adapted to a walking aid comprises a rubber anti-falling pad 1, a stop rod 2, a structural frame, a connecting steel sheet, a transmission rod, a main support frame 9, an installation locking plate 10, a spring 12, a transmission hinge 15 and wheels; the rubber anti-falling pad 1 is arranged at one end of the stop rod 2, and the stop rod and the rubber anti-falling pad are connected with the first structural frame 3 together; the first structural frame 3 and the second structural frame 5 are vertically contacted through angle irons and bolts, and are further fixed through a first connecting steel sheet 4; the second structural frame 5 and the third structural frame 7 are vertically connected through angle iron and bolts, and the second structural frame and the third structural frame are further fixed through a second connecting steel sheet 6; the third structural frame 7 and the main support frame 9 are vertically connected through angle iron and bolts, and the third structural frame and the main support frame are further fixed through a third connecting steel sheet 8; the lower end face of the third structural frame 7 is connected with a third transmission rod 20 through a hinge, and the third transmission rod 20 rotates; the mounting locking plate 10 is fixed on the main supporting frame 9; the main supporting frame 9 is connected with one end of a first transmission rod 11 through a transmission hinge 15; the other end of the first transmission rod 11 is connected with a second transmission rod 13 through a transmission hinge 15; two ends of the spring 12 are respectively arranged between the first transmission rod 11 and the third transmission rod 20; the spring 12 is in the original length when the device is in a normal state, the spring 12 is in a stretching state when the device is in an emergency stop state, and the first transmission rod 11 and the third transmission rod 20 are restored to the normal walking state position by the spring tension when the device is acted by a lifting force; the second transmission rod 13 is connected with the third transmission rod 20 through a hinge, and the wheel shaft 21 is arranged on the third transmission rod 20; the wheel tire 16, the wheel hub 17, the wheel fixing nut 18 and the rolling bearing 19 form a wheel, and the wheel fixing nut 18 is used for fixing the rolling bearing 19; the rolling bearing 19 is mounted on the wheel shaft 21; the wheel hub 17 drives the whole wheel to freely roll by taking the wheel shaft 21 as an axis under the action of the rolling bearing 19.
The rubber anti-falling pad 1 is divided into two layers, the upper layer is a metal plate and fixed with the stop rod 2, the lower layer is a rubber pad, and anti-falling lines are arranged on one surface, in contact with the ground, of the bottom of the rubber pad.
The number of the mounting locking plates 10 is two; each mounting and locking plate 10 is provided with two holes; one of the holes is a light hole and is used for connecting the walking aid with the mounting and locking plate 10; the other hole is a threaded hole for installation of the locking bolt 14.
The wheel shaft 21 is a stepped shaft, the diameters of two ends of the stepped shaft are smaller than the diameter of the center of the stepped shaft, and the stepped shaft is used for mounting the rolling bearing 19; the wheel shaft 21 is threaded at both ends to mate with the wheel securing nuts 18.
The stop rod 2 is mainly connected by four connecting pieces, and the connecting pieces are rigidly connected with the first structural frame (3).
The arrangement position of the spring has strict requirements, the spring is easy to unfold when in emergency stop, and is self-locked after being in the emergency stop state, and sufficient restoring force is provided to help recover the walking state.
The wheel tire is made of rubber materials, is connected to a wheel hub, plays a role in buffering and absorbing shock, improves the durability of the device, enables the wheel not to slip easily when the wheel travels and enables the scram time to be shorter when the wheel is scram.
The invention has the beneficial effects that: simple structure relies on the spring to realize the scram function, and the controllability is good, and is safe in utilization, does not need extra power device, and the scram dependable performance, low cost relies on downward impact force to trigger, keeps the scram state under not receiving the exogenic action after the scram, lifts the automatic recovery on lifting with less power when resumeing. The anti-skid emergency stop device is provided with the locking mechanism, the purpose of being installed on different instruments is achieved, the length of the anti-skid emergency stop device can be adjusted, the anti-skid emergency stop device is conveniently applied to instruments with different sizes, and the response time and the sensitivity of emergency stop can be adjusted by adjusting the positions of the stop rod and the spring.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a front view of an embodiment of an anti-fall mechanism adapted to a walker apparatus of the present invention in scram.
FIG. 2 is a perspective view of an embodiment of an anti-fall mechanism adapted to a walker apparatus of the present invention shown in an emergency stop.
FIG. 3 is a perspective view of an embodiment of an anti-fall mechanism adapted to a walker apparatus of the present invention during normal walking.
FIG. 4 is a front view of an embodiment of an anti-fall mechanism adapted to a walker apparatus of the present invention during normal walking.
In the figure: the wheel comprises a rubber non-slip mat 1, a stop rod 2, a first structural frame 3, a first connecting steel sheet 4, a first structural frame 5, a second connecting steel sheet 6, a third structural frame 7, a third connecting steel sheet 8, a main support frame 9, a locking plate 10, a first transmission rod 11, a spring 12, a second transmission rod 13, a locking bolt 14, a connecting hinge 15, a wheel tire 16, a wheel hub 17, a wheel fixing nut 18, a rolling bearing 19, a third transmission rod 20 and a wheel axle 21.
Detailed Description
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
In the description of the present invention, unless otherwise indicated, some indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Embodiments of the present invention are described in further detail below with reference to the drawings and examples.
In the embodiment of the invention, the anti-falling mechanism suitable for the walking aid comprises a rubber anti-falling pad 1, a stop rod 2, a structural frame, a connecting steel sheet, a transmission rod, a main support frame 9, a mounting locking plate 10, a spring 12, a transmission hinge 15 and wheels.
Specifically, the functions of the embodiment of the present invention can be divided into two parts.
The first part is a normal walking state, as shown in fig. 3 and 4, when the wheel is in a normal rolling state, the first transmission rod 11 and the second transmission rod 13 are in a straight line, the third transmission rod 20 and the third structural frame 7 are in a straight line, and a spring 12 is connected between the first transmission rod 11 and the third transmission rod 20; the angle of the dead point of the anti-falling mechanism is determined through angle calculation, the first transmission rod 11 and the second transmission rod 13 cannot be actively bent by the anti-falling mechanism through the connection of the position of the dead point of the anti-falling mechanism and the spring 12, and the third transmission rod 20 and the third structural frame 7 cannot be actively bent, so that the stop rod 2 has a certain distance relative to the ground, the rubber anti-skid pad 1 cannot be contacted with the ground, and the purpose of normal walking is achieved.
The second part is an emergency stop antiskid state, when a user meets an obstacle and needs to make an emergency stop, as shown in fig. 1 and fig. 2, the body of the user leans forwards, a downward component force is given to the walking aid to enable the spring 12 to be stretched by tension, the second transmission rod 13 and the third transmission rod 20 rotate along the hinges respectively, the height of the whole mechanism is reduced, and the stop rod 2 moves vertically downwards until the stop rod is contacted with the ground. After the spring is stretched and the stop rod 2 is contacted with the ground, the mechanism is in a self-locking state and cannot automatically recover due to the reduction or disappearance of the downward force action of the inclined direction. The spring is fixed in position, so that the self-locking performance is guaranteed, and meanwhile, a user applies vertical or oblique upward force to release the self-locking state of the mechanism, and the walking state is recovered. The rubber anti-skid pad 1 is arranged at the contact end of the stopping rod 2 and the ground, so that the friction force between the stopping rod 2 and the ground is increased, the shock absorption and buffering effects are achieved, the comfort of a user is improved, and the abrasion of the stopping rod 2 and the whole mechanism is reduced.
The main supporting frame 9 is provided with a mounting locking plate 10 which is connected by bolts and is connected with the walking aid with a cross bar as a lower frame through a hole on the upper part, thereby greatly increasing the interchangeability of the invention and reducing the cost of replacing the anti-falling wheel. The anti-falling wheel adopts a small-size rubber wheel, and can be replaced by wheels of different sizes according to the actual condition of a user.
The invention adjusts different sensitivities to adapt to different terrains by adjusting the ground clearance of the stop rod 2 and the size of the wheel.
The anti-fall mechanism adapted to a walker device provided by the present invention has been described in detail, and the principles and embodiments of the present invention are explained herein using specific examples, which are provided only to help understand the present invention and the core concept. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
The invention is not described in detail, but is well known to those skilled in the art. The components are all standard parts or parts known to the person skilled in the art, the structure and principle of which are known to the person skilled in the art by means of technical manuals or by means of routine experimentation.
Claims (8)
1. An anti-falling mechanism adaptive to a walking aid appliance is characterized by comprising a rubber anti-falling pad (1), a stop rod (2), a structural frame, a connecting steel sheet, a transmission rod, a main support frame (9), an installation locking plate (10), a spring (12), a transmission hinge (15) and wheels; the rubber anti-falling pad (1) is arranged at one end of the stop rod (2), and the other end of the stop rod (2) is connected with the first structural frame (3); the first structural frame (3) and the second structural frame (5) are vertically connected through angle iron and bolts, and are further fixed through a first connecting steel sheet (4); the second structural frame (5) and the third structural frame (7) are vertically connected through angle iron and bolts, and the second structural frame and the third structural frame are further fixed through a second connecting steel sheet (6); the third structural frame (7) and the main support frame (9) are vertically connected through angle iron and bolts, and the third structural frame and the main support frame are further fixed through a third connecting steel sheet (8); the lower end face of the third structural frame (7) is connected with a third transmission rod (20) through a hinge, and the third transmission rod (20) rotates; the mounting locking plate (10) is fixed on the main support frame (9); the main support frame (9) is connected with one end of a first transmission rod (11) through a transmission hinge (15); the other end of the first transmission rod (11) is connected with the second transmission rod (13) through a transmission hinge (15); the spring (12) is original length when the device is in a normal state, the spring (12) is in a stretching state when the device is in an emergency stop state, and the first transmission rod (11) and the third transmission rod (20) are restored to normal walking state positions by the spring tension when the device is under the action of lifting force; the second transmission rod (13) is connected with the third transmission rod (20) through a hinge, and the wheel shaft (21) is arranged on the third transmission rod (20); the wheel comprises a wheel tire (16), a wheel hub (17), a wheel fixing nut (18) and a rolling bearing (19), wherein the wheel fixing nut (18) is used for fixing the rolling bearing (19); the rolling bearing (19) is arranged on the wheel shaft (21); the wheel hub (17) drives the whole wheel to freely roll by taking the wheel shaft (21) as an axis under the action of the rolling bearing (19).
2. The anti-falling mechanism adapted to walking aid appliances is characterized in that the rubber anti-falling pad (1) is divided into two layers, the upper layer is a metal plate and fixed with the stop rod (2), the lower layer is a rubber pad, and the surface of the bottom of the rubber pad, which is in contact with the ground, is provided with anti-falling grains.
3. An anti-fall mechanism adapted to a walking aid appliance according to claim 1 or 2, wherein the mounting and locking plates (10) are provided in two numbers; each mounting locking plate (10) is provided with two holes; one hole is a smooth hole and is used for connecting the walking aid with the mounting and locking plate (10); the other hole is a threaded hole for mounting a locking bolt (14).
4. The fall prevention mechanism adapted to a walking aid appliance according to claim 1 or 2, wherein the wheel shaft (21) is a stepped shaft with a diameter smaller at both ends than at the center for mounting a rolling bearing (19); the two ends of the wheel shaft (21) are provided with threads and are matched with the wheel fixing nuts (18).
5. The fall prevention mechanism adapted to walking aid appliance according to claim 3 characterized in that said wheel axle (21) is a stepped axle with both ends having a diameter smaller than the central diameter for mounting rolling bearings (19); the two ends of the wheel shaft (21) are provided with threads and are matched with the wheel fixing nuts (18).
6. An anti-fall mechanism adapted to a walking aid according to claim 1, 2 or 5, wherein the stop bar (2) is mainly connected by four connecting pieces, which are rigidly connected to the first structural frame (3).
7. An anti-fall mechanism adapted to a walking aid according to claim 3, wherein the stop bar (2) is connected mainly by four connecting pieces, which are rigidly connected to the first structural frame (3).
8. An anti-fall mechanism adapted to a walking aid according to claim 4, wherein the stop bar (2) is mainly connected by four connecting pieces, which are rigidly connected to the first structural frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110923525.2A CN113440388B (en) | 2021-08-12 | 2021-08-12 | Anti-falling mechanism of walking aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110923525.2A CN113440388B (en) | 2021-08-12 | 2021-08-12 | Anti-falling mechanism of walking aid |
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| Publication Number | Publication Date |
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| CN113440388A true CN113440388A (en) | 2021-09-28 |
| CN113440388B CN113440388B (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110923525.2A Active CN113440388B (en) | 2021-08-12 | 2021-08-12 | Anti-falling mechanism of walking aid |
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Citations (10)
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|---|---|---|---|---|
| US20090242006A1 (en) * | 2006-09-21 | 2009-10-01 | Warren Sydney A | Walker Having Automatically Activated Protective Dynamic Padding |
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| CN110279563A (en) * | 2019-06-21 | 2019-09-27 | 北京机械设备研究所 | One kind is anti-to fall walk helper |
| CN110558691A (en) * | 2019-10-12 | 2019-12-13 | 湖北汽车工业学院 | Fall-proof assisting walking stick |
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2021
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| US20090242006A1 (en) * | 2006-09-21 | 2009-10-01 | Warren Sydney A | Walker Having Automatically Activated Protective Dynamic Padding |
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| CN113440388B (en) | 2024-06-21 |
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