CN117426933A - Automatic speed reducing wheel body - Google Patents
Automatic speed reducing wheel body Download PDFInfo
- Publication number
- CN117426933A CN117426933A CN202210835711.5A CN202210835711A CN117426933A CN 117426933 A CN117426933 A CN 117426933A CN 202210835711 A CN202210835711 A CN 202210835711A CN 117426933 A CN117426933 A CN 117426933A
- Authority
- CN
- China
- Prior art keywords
- wheel
- hole
- sliding
- roller
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001603 reducing effect Effects 0.000 title claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims abstract description 46
- 230000009467 reduction Effects 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1005—Wheelchairs having brakes
- A61G5/1008—Wheelchairs having brakes for gradually slowing down the wheelchair
-
- 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
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1005—Wheelchairs having brakes
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention provides an automatic speed reduction wheel body, which comprises: the wheel body unit comprises a wheel seat, a wheel shaft penetrating through the wheel seat and a roller capable of rotating around the wheel shaft, a plurality of radial blocking pieces are annularly arranged at the position, close to the edge, of one side of the wheel frame and rotate along with the roller, the speed reducing unit comprises a fixing seat and a sliding piece, the fixing seat is arranged on one side of the roller, the fixing seat is provided with a sliding hole, the sliding piece is slidingly arranged in the sliding hole, the sliding piece is provided with an elastic part, the front end of the elastic part is provided with a blocking part, when the roller moves to a downhill, the blocking part of the sliding piece protrudes out of the sliding hole and moves to the rotating path of the plurality of blocking pieces, and the elastic part matched with the elastic part is gradually stirred by the plurality of blocking pieces to pass through, so that the speed reducing effect is achieved.
Description
Technical Field
The present invention relates to a wheel, and more particularly to a wheel with an automatic deceleration function during downhill.
Background
Taiwan has been in an advanced society and has an increasing demand for long illumination, and patients or elderly people often have difficulty in walking due to limb disorder or weakness in hospitals or support institutions, and the patients or elderly people have to rely on the aid of a walker or a wheelchair to facilitate the activities of the patients or the elderly people, so that the use rate of the walker or the wheelchair is increased gradually.
The walker or the wheelchair is provided with the wheel body, so that the walker or the wheelchair can roll along the ground and advance, however, when the walker or the wheelchair is on a downhill slope, sudden acceleration is easy to occur due to the sliding force, so that the rotating speed of the wheel body is too high, under the condition, a user cannot react immediately, so that the brake mechanism cannot be controlled to brake the wheel body at the first time, the user is easy to fall down, or the walker or the wheelchair is turned over, the danger caused by weak control force of the patient, the old and the disabled is quite high, and the need for improvement is realized.
Disclosure of Invention
In view of the above-mentioned drawbacks of the conventional wheel, the present invention provides an automatic reduction wheel comprising: the wheel body unit comprises a wheel seat, a wheel shaft penetrating through the wheel seat and a roller capable of rotating around the wheel shaft, the wheel seat is provided with a perforation, the wheel shaft penetrates through the perforation, one end of the wheel shaft is provided with a non-circular section, the roller is provided with a wheel frame, the outer periphery of the wheel frame is combined with an outer wheel, the center of the wheel frame is provided with a shaft hole, the shaft hole is penetrated through by the wheel shaft, the roller can freely rotate on the wheel shaft, a plurality of radial blocking pieces are annularly arranged at the position, close to the edge, of one side of the wheel frame, of the plurality of blocking pieces rotate along with the roller; the fixed seat is provided with a fixed hole and a sliding hole, the fixed hole is sleeved on a non-circular section of the wheel shaft to be fixed, the fixed seat is positioned on one side of the roller, the sliding part is slidably arranged in the sliding hole, the sliding part is provided with a sliding body, the front end of the sliding body is connected with an elastic part, the front end of the elastic part is connected with a blocking part, when the roller moves to a downhill, the sliding hole forms a downward inclination angle along with the sliding part, the sliding part slides and displaces along the sliding hole through gravity, the blocking part of the sliding part protrudes out of the sliding hole and moves to the rotating path of the plurality of blocking pieces, and the elastic part matched with the elastic part is gradually pushed by the plurality of blocking pieces to achieve the effect of speed reduction.
The main purpose of the automatic speed reduction wheel body is that when the roller wheels travel to a downhill, a speed reduction effect can be automatically generated, sudden acceleration is prevented, injury to a user caused by too high downhill speed is avoided, and the use safety is improved.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an exploded perspective view of the present invention.
Fig. 3 is a perspective view of the fixing base and the sliding member of the present invention.
Fig. 4 is a cross-sectional view of the present invention.
Fig. 5 is a schematic diagram showing an automatic deceleration action when the present invention descends.
FIG. 6 is a second schematic diagram of the automatic deceleration operation in the downhill slope of the present invention.
FIG. 7 is a schematic view of the wheelchair-mounted wheelchair of the present invention.
FIG. 8 is a schematic view of the use of the present invention mounted to a walker.
Fig. 9 is a perspective view of another embodiment of the present invention.
Fig. 10 is an exploded perspective view of another embodiment of the present invention.
Fig. 11 is a cross-sectional view of another embodiment of the present invention.
Fig. 12 is a schematic diagram showing an automatic deceleration action when the vehicle descends a slope according to another embodiment of the present invention.
Fig. 13 is a second schematic diagram of an automatic deceleration action when the vehicle descends a slope according to another embodiment of the present invention.
Reference numerals
1 automatic speed reducing wheel body 2 wheelchair
3 Walking aid 10 wheel body unit
11 wheel seat 111 side plate
1111 through hole 12 wheel axle
121 non-circular section 13 roller
131 wheel frame 1311 axle hole
1312 to catch 1313 to resilient catch
132 outer wheel 20 speed reducing unit
21 fixing base 211 fixing hole
212 sliding hole 22 sliding member
221 sliding body 222 elastic part
223 stopper 23 protective cover
231 assembly hole 24 fixing seat
241 sliding hole 25 sliding piece
251, limit groove 2511, first end
2512 second end 252 stop
26 side cover 261 through hole
262 arc long hole 263 and screw
Detailed Description
The following drawings are further described in conjunction with the preferred embodiments of the present invention in order to enable those skilled in the art to practice the invention as set forth in the specification.
Referring to fig. 1 to 4, an automatic reduction gear 1 of the present invention includes a gear unit 10 and a reduction unit 20.
The wheel body unit 10 comprises a wheel seat 11, an axle 12 penetrating through the wheel seat 11 and a roller 13 capable of rotating around the axle 12, the wheel seat 11 is provided with two side plates 111 in an extending mode, the two side plates 111 are provided with a through hole 1111 in a penetrating mode, the axle 12 is arranged in the through hole 1111 in a penetrating mode, one end of the axle 12 is provided with a non-circular section 121, the roller 13 is arranged between the two side plates 111, the roller 13 is provided with a wheel frame 131, the outer periphery of the wheel frame 131 is combined with an outer wheel 132, a shaft hole 1311 is arranged in the center of the wheel frame 131, the shaft hole 1311 is used for enabling the axle 12 to penetrate through, the roller 13 can freely rotate on the axle 12, a plurality of radial blocking pieces 1312 are annularly arranged at the position of the near edge of one side of the wheel frame 131, and the plurality of blocking pieces 1312 rotate along with the roller 13.
The speed reducing unit 20 includes a fixing base 21, a sliding member 22 and a protecting cover 23, the fixing base 21 is installed between two side plates 111 and is located at one side of the roller 13, the fixing base 21 is provided with a fixing hole 211 and a sliding hole 212, the fixing hole 211 is sleeved on the non-circular section 121 of the wheel axle 12 for fixing, the sliding hole 212 is at a horizontal angle in a normal state, the sliding member 22 is slidingly arranged in the sliding hole 212, the sliding member 22 can slide along the sliding hole 212 for displacement, the sliding member 22 is provided with a sliding body 221, the front end of the sliding body 221 is provided with a sheet-shaped elastic part 222, the front end of the elastic part 222 is provided with a blocking part 223, the protecting cover 23 is installed between two side plates 111 of the wheel seat 11 and is located at one side of the roller 13, the protecting cover 23 covers the fixing base 21 and the sliding member 22, the center of the protecting cover 23 is provided with an assembling hole 231, and the assembling hole 231 is sleeved on the non-circular section 121 for fixing.
In use, the automatic speed reduction wheel 1 can be mounted on a moving carrier such as a wheelchair 2 (shown in fig. 7) or a walker 3 (shown in fig. 8), and when the wheelchair 2 or the walker 3 travels on a level ground, the stop 223 of the sliding member 22 is not located on the rotation paths of the plurality of blocking pieces 1312 (shown in fig. 4), but can normally travel; as shown in fig. 5 and 6, when the wheelchair 2 or the walker 3 travels down a slope, the sliding hole 212 forms a downward inclination angle, the sliding member 22 slides along the sliding hole 212 by gravity, so that the blocking portion 223 of the sliding member 22 protrudes out of the sliding hole 212 and moves to the rotating path of the plurality of blocking pieces 1312, the blocking portions 1312 are blocked by the blocking portion 223, and the blocking portion 223 is pushed by the plurality of blocking pieces 1312 one by one to achieve the effect of deceleration in cooperation with the elastic deformation and elastic recovery of the elastic portion 222.
Further, as shown in fig. 9 to 11, another embodiment of the automatic reduction gear body 1 according to the present invention, the automatic reduction gear body 1 of another embodiment includes a gear body unit 10 and a reduction gear unit 20.
The wheel body unit 10 comprises a wheel seat 11, an axle 12 penetrating through the wheel seat 11 and a roller 13 capable of rotating around the axle 12, the wheel seat 11 is provided with two side plates 111 in an extending mode, the two side plates 111 are provided with a through hole 1111 in a penetrating mode, the axle 12 penetrates through the through hole 1111, the roller 13 is arranged between the two side plates 111, the roller 13 is provided with a wheel frame 131, the outer periphery of the wheel frame 131 is combined with an outer wheel 132, a shaft hole 1311 is formed in the center of the wheel frame 131, the shaft hole 1311 is used for enabling the axle 12 to penetrate through, the roller 13 can rotate freely on the axle 12, a plurality of radial elastic baffle plates 1313 are annularly arranged at the position, close to the edge, of one side of the wheel frame 131, and the plurality of elastic baffle plates 1313 rotate along with the roller 13.
The speed reducing unit 20 comprises a fixed seat 24, a sliding part 25 and a side cover 26, the fixed seat 24 is arranged on one side of the roller 13, the fixed seat 24 is provided with a sliding hole 241, the sliding part 25 is arranged in the sliding hole 241 in a sliding way, the middle section of the sliding part 25 is provided with a limiting groove 251, the limiting groove 251 enables the sliding part 25 to slide and displace along the sliding hole 241 within a limiting range, the front end of the sliding part 25 is provided with a blocking part 252, the side cover 26 is arranged on one side of the roller 13 and combined with the fixed seat 24 in a combined way, the side cover 26 covers the fixed seat 21 and the sliding part 22, the sliding hole 241 of the fixed seat 24 is in a horizontal angle in a normal state, the center of the side cover 26 is provided with a through hole 261, the through hole 261 is used for the wheel shaft 12 to pass through, the side cover 26 is provided with an arc long hole 262, two screws 263 are used for passing through and locking one of the side plates 111, the side covers 26 and 11 are connected, and the wheel seat 11 can swing relative to the side cover 26 within the range of the arc long hole 262. The limiting groove 251 has a first end 2511 and a second end 2512, and the limiting range is a range from the first end 2511 to the second end 2512.
In use, the automatic reduction gear body 1 can be mounted on a moving carrier such as a wheelchair 2 (shown in fig. 7) or a walker 3 (shown in fig. 8), and when the wheelchair 2 or the walker 3 travels on a flat ground, the blocking portion 252 of the sliding member 25 is not located on the rotation path of the plurality of elastic blocking pieces 1313 (shown in fig. 11), but can normally travel; as shown in fig. 12 and 13, when the wheelchair 2 or the walker 3 travels down a slope, the sliding hole 241 is inclined downward, the sliding member 25 slides along the sliding hole 241 by gravity, so that the blocking portion 252 of the sliding member 25 protrudes out of the sliding hole 241 and moves to the rotating path of the plurality of elastic blocking pieces 1313, the blocking portion 252 blocks the plurality of elastic blocking pieces 1313, and the elastic blocking pieces 1313 deform one by one through the blocking portion 252 in cooperation with elastic deformation and elastic recovery of the elastic blocking pieces 1313, and recover after passing through, thereby achieving the effect of deceleration.
In addition, as shown in fig. 11 to 13, the limiting groove 251 has a first end 2511 and a second end 2512, and the side edge of the wheel axle 12 is clamped in the limiting groove 251, when the sliding hole 241 forms a downward inclination angle, the second end 2512 of the limiting groove 251 can abut against the side edge of the wheel axle 12, so as to enable the sliding member 25 to displace within the limiting range and prevent the sliding member 25 from falling out of the sliding hole 241.
By the structure of the above embodiment, the following benefits can be obtained:
the automatic speed reduction wheel body 1 can be arranged on a wheelchair 2 or a mobile carrier such as a walker 3, and automatically generates a speed reduction effect when the wheelchair is moved to a downhill, so that sudden acceleration is prevented, injury to a user caused by too high downhill speed is avoided, and the use safety is improved.
Claims (9)
1. An automatic speed reducing wheel body, comprising:
the wheel body unit comprises a wheel seat, a wheel shaft penetrating through the wheel seat and a roller capable of rotating around the wheel shaft, wherein the wheel seat is provided with a through hole, the wheel shaft penetrates through the through hole, one end of the wheel shaft is provided with a non-circular section, the roller is provided with a wheel frame, the outer periphery of the wheel frame is combined with an outer wheel, the center of the wheel frame is provided with a shaft hole, the shaft hole is used for the wheel shaft to penetrate through, the roller can freely rotate on the wheel shaft, and a plurality of radial blocking pieces are annularly arranged at the position near the edge of one side of the wheel frame and rotate along with the roller; and
the fixed seat is provided with a fixed hole and a sliding hole, the fixed hole is sleeved on the non-circular section of the wheel shaft to be fixed, the fixed seat is positioned at one side of the roller, the sliding piece is slidably arranged in the sliding hole, the sliding piece is provided with a sliding body, the front end of the sliding body is provided with an elastic part, the front end of the elastic part is provided with a blocking part, when the roller moves to a downhill, the sliding hole forms a downward inclination angle therewith, the sliding piece slides and moves along the sliding hole through gravity, the blocking part of the sliding piece protrudes out of the sliding hole and moves to the rotating path of the blocking pieces, and the blocking part is matched with the elasticity of the elastic part to be pushed by the blocking pieces one by one to pass, so that the effect of speed reduction is achieved.
2. The automatic speed reducing wheel according to claim 1, wherein the wheel seat is provided with two side plates in an extending manner, and the fixing seat is arranged between the two side plates.
3. The automatic reduction gear body of claim 1, wherein the sliding aperture is normally at a horizontal angle.
4. The automatic speed reducing wheel body according to claim 1, wherein the elastic portion is in a sheet shape.
5. The automatic speed reducing wheel according to claim 1, wherein the speed reducing unit further comprises a protective cover, the protective cover is arranged on one side of the roller and covers the fixed seat and the sliding piece, an assembly hole is arranged at the center of the protective cover, and the assembly hole is sleeved on the non-circular section for fixing.
6. An automatic speed reducing wheel body, comprising:
the wheel body unit comprises a wheel seat, a wheel shaft penetrating through the wheel seat and a roller capable of rotating around the wheel shaft, the wheel seat is provided with a through hole, the wheel shaft penetrates through the through hole, the roller is provided with a wheel frame, the outer periphery of the wheel frame is combined with an outer wheel, the center position of the wheel frame is provided with a shaft hole, the shaft hole is used for the wheel shaft to penetrate through, the roller can freely rotate on the wheel shaft, a plurality of radial elastic baffle plates are annularly arranged at the position, close to the edge, of one side of the wheel frame, and rotate along with the roller; and
the fixed seat is provided with a sliding hole, the sliding piece is slidably arranged in the sliding hole, a blocking part is arranged at the front end of the sliding piece, when the roller moves to a downhill, the sliding hole forms a downward inclination angle, the sliding piece slides and displaces along the sliding hole through gravity, the blocking part of the sliding piece protrudes out of the sliding hole and moves to the rotating path of the elastic blocking pieces, the elastic blocking pieces are blocked through the blocking part, and the elastic blocking pieces are deformed one by one through the blocking part and return to the original state after passing through the blocking part in cooperation with the elastic deformation and elastic return of the elastic blocking pieces, so that the effect of reducing speed is achieved.
7. The automatic speed reducing wheel according to claim 6, wherein the middle section of the sliding member is provided with a limit groove, and the limit groove enables the sliding member to slidably move along the sliding hole within a limit range.
8. The automatic reduction gear body of claim 6, wherein the sliding aperture is normally at a horizontal angle.
9. The automatic speed reducing wheel body according to claim 6, wherein the wheel seat is extended with two side plates, the speed reducing unit further comprises a side cover, the side cover is arranged on one side of the roller, the side cover is combined with the fixed seat in a combined mode and covers the fixed seat and the sliding piece, a through hole is arranged at the center of the side cover, the through hole is used for the wheel shaft to penetrate, the side cover is provided with an arc-shaped long hole, two screws penetrate and are locked on one side plate, the side cover is connected with the wheel seat, and the wheel seat can swing relative to the side cover in the range of the arc-shaped long hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210835711.5A CN117426933A (en) | 2022-07-15 | 2022-07-15 | Automatic speed reducing wheel body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210835711.5A CN117426933A (en) | 2022-07-15 | 2022-07-15 | Automatic speed reducing wheel body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117426933A true CN117426933A (en) | 2024-01-23 |
Family
ID=89554151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210835711.5A Pending CN117426933A (en) | 2022-07-15 | 2022-07-15 | Automatic speed reducing wheel body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117426933A (en) |
-
2022
- 2022-07-15 CN CN202210835711.5A patent/CN117426933A/en active Pending
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |