CN2905011Y - A wheelchair capable of preventing against dropback when upgrading and sliding when downdrading - Google Patents
A wheelchair capable of preventing against dropback when upgrading and sliding when downdrading Download PDFInfo
- Publication number
- CN2905011Y CN2905011Y CN 200520125289 CN200520125289U CN2905011Y CN 2905011 Y CN2905011 Y CN 2905011Y CN 200520125289 CN200520125289 CN 200520125289 CN 200520125289 U CN200520125289 U CN 200520125289U CN 2905011 Y CN2905011 Y CN 2905011Y
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- wheelchair
- sliding
- upgrading
- friction
- slope
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Abstract
A wheelchair capable of preventing against dropback when upgrading and sliding when downdrading, which comprises a friction ratchet wheel brake auto anti moving back when ascending grade and a hand-rotating wheelchair anti-sliding device for downgrading. The utility model is characterized in that the device is provided with two sets respectively, they are respectively mounted on the wheelchair metal frame adjacent to the rear wheel tire to control the anti-moving back when upgrading and anti-sliding when downgrading. The utility model has the advantages of that the structure of the devices of the friction ratchet wheel brake wheelchair upgrading auto anti-moving back and the hand-rotating wheelchair anti-sliding for downgrading is simple, with compact size and simple manufacturing processing as well as low production cost. The operation is convenient and force-saving, and the function of controlling the wheelchair is rapid and reliable, particularly the device may be very conveniently mounted on all of the existing used common wheelchairs, and no necessity to make any change on these common wheelchairs, and hence make these common wheelchairs become new-type safety wheelchairs which can auto anti-moving back when upgrading and anti-sliding when downgrading.
Description
Technical field this utility model relates to a kind of anti-skidding novel wheelchair of automatic anti-back descending that goes up a slope
Background technology is current, and there are two big deficiencies in the vast handicapped wheelchair of riding instead of walk that the crowd took on function.The first, being wheelchair can not arbitrarily stop in the way of going up a slope, otherwise wheelchair will glide and falls back.For this reason, wheelchair occupant or the two-wheel of must with the hands holding with a firm grip is to stop the downslide that falls back of wheelchair; Must wheel be locked with the brake unit that hands is wrenched on the wheelchair, fall back to prevent that wheelchair from gliding.Continue if desired to go up a slope, then take-off the brake device and quick simultaneously promptly two-wheel fall back to prevent wheelchair downslide out of control again.This process operation gets up very complicated, and is older for those, and the weak people of health are just difficult more when travelling in long slope or way, abrupt slope.If falling back, the downslide very easily out of control of misoperation, wheelchair causes danger.The second, wheelchair in order to prevent that the speed of a motor vehicle is out of control when descending, then must with the hands be wrenched the two-wheel of brake unit locking wheelchair again in descending way.Because used common wheelchair brake unit is the lever force structure, is unfavorable for the arresting minor adjustments of two-wheel; And its braking and locking function is very unreliable again, or tension, or loose excessively.Especially sometimes produce the loosening phenomenon of locking, easier generation in this way, infra abrupt slope.Existing these deficiencies of current common wheelchair have caused operating difficulties and have brought potential safety hazard to the occupant.In view of the existing above-mentioned functions defective of the common wheelchair of current use, make a kind of anti-skidding novel wheelchair of automatic anti-back descending that goes up a slope and just seem very necessary urgent.
Summary of the invention: the purpose of this utility model provides a kind of anti-skidding novel wheelchair of automatic anti-back descending that goes up a slope, it is that a kind of utilization can prevent that wheelchair from can reliably prevent the shoe of wheelchair speed downslide out of control when falling back the anti-unloading device that glides and descending when being installed in upward slope on the wheelchair automatically, and this device can remedy the above-mentioned deficiency of the common wheelchair of existing use.
A kind of anti-skidding novel wheelchair of automatic anti-back descending that goes up a slope comprises automatically anti-unloading device of friction-type ratchet braking wheelchair upward slope and hand screw type wheelchair descending shoe.This device respectively has two covers, and they are fixed on the wheelchair metal framework of wheelchair both sides near back bull wheel rubbery cover tyre respectively symmetrically, are used for controlling the upward slope anti-back of wheelchair, and descending is anti-skidding.
The utility model has the advantages that automatically anti-unloading device of friction ratchet gear braking wheelchair upward slope and hand screw type wheelchair descending shoe, volume simple in structure is small, and manufacturing process is easy, and cost is very cheap, and is easy to operate, fast reliable to the control function of wheelchair.Particularly importantly, this device can be installed on the common wheelchair of all existing uses easily, and needn't it be made any change, and then makes it to become a kind of anti-skidding new type of safe wheelchair of automatic anti-back descending that can go up a slope.
Description of drawings: accompanying drawing 1 is a population structure sketch map of the present utility model.
Accompanying drawing 2 is the braking of the friction-type ratchet in this utility model wheelchair automatic anti-back apparatus structure sketch map that goes up a slope.
Accompanying drawing 3 is the hand screw type wheelchair descending shoe structural representation in this utility model.
The specific embodiment: this utility model comprises wheelchair left side left-handed friction-type ratchet braking wheelchair automatically anti-unloading device 4 and the wheelchair right side dextrorotation friction-type ratchet braking wheelchair automatically anti-unloading device 5 that goes up a slope that goes up a slope; An one wheelchair left-handed hand screw type wheelchair descending shoe 2 in left side and a right side dextrorotation hand screw type wheelchair descending shoe 3.Its purpose be exactly for convenience the wheelchair occupant with the left hand and the right hand handle simultaneously above-mentioned each install, finish the wheelchair automatic anti-back of going up a slope, the descending antiskid function.
Brake the automatically anti-unloading device 4 of wheelchair upward slope at the left-handed friction-type ratchet in wheelchair left side and brake in the automatically anti-unloading device 5 of wheelchair upward slope with wheelchair right side dextrorotation friction-type ratchet, except having only left hand thread and right-handed thread difference, its each component part is all identical; In left-handed hand screw type wheelchair descending shoe 2 in wheelchair left side and right side dextrorotation hand screw type wheelchair descending shoe 3, except having only left hand thread and right-handed thread difference, its each component part is all identical.Therefore, respectively install separately narrating of left hand thread and right-handed thread in order to be convenient to concisely to narrate the specific embodiment of the present utility model more, in the following stated, no longer to do, but with reference to the unified narration of accompanying drawing.
When wheelchair goes up a slope, in order to prevent that wheelchair downslide out of control from falling back, the wheelchair occupant can put down friction-type brake ratchet 8 from the idle platform 12 of friction-type brake ratchet, the frictional damping block rubber 15 on the frictional damping ratchet 8 promptly contacts with bull wheel rubbery cover tyre behind the wheelchair.In the way of going up a slope, when the wheelchair downslide falls back, thereby bull wheel reversing drives friction-type brake ratchet 8 and rotates thereupon and press down behind the wheelchair, downforce makes that the frictional force between the bull wheel cover tire constantly increases behind frictional damping block rubber 15 and the wheelchair, bull wheel stops the back after forcing wheelchair changes, and wheelchair stopped automatically gliding backward and fell back this moment.When wheelchair did not go up a slope enforcement, the wheelchair occupant can be put back on the idle platform 12 of friction-type brake ratchet revolving on the friction-type brake ratchet 8.When behind the wheelchair during bull wheel underinflation of tire, automatically prevent the unloading device operate as normal in order to guarantee that friction-type ratchet braking wheelchair goes up a slope, the wheelchair occupant can be with the openhanded friction-type brake ratchet locking position handwheel 6 of opening, friction-type brake ratchet supporting revolving shaft 11 is moved down, until correct position along the friction-type brake ratchet displacement pilot hole 13 that is connected and fixed on the part 9.But wheelchair occupant reuse hand-screw friction-tight this moment formula brake ratchet locking position handwheel 6 is fastened on friction-type brake ratchet supporting revolving shaft 11 again and is connected and fixed on the part 9, thereby makes friction-type brake ratchet 8 obtain to support at reposition.The function that the friction-type brake ratchet of band shoulder supports steel bushing 10 and reinforcement 14 is rigidity and the intensity that increases the friction type brake ratchet 8; The function of space washer 7 is to prevent that friction-type brake ratchet 8 is along friction-type brake ratchet rotating shaft 11 axial floats; The function that is connected and fixed part 9 is the friction-type ratchet to be braked the automatically anti-unloading device of wheelchair upward slope be fixed near on the wheelchair metal framework above the bull wheel rubbery cover tyre behind the wheelchair.
When the wheelchair descending, speed is out of control when preventing that wheelchair is descending, and the wheelchair occupant can start to take turns 16 with the hand-screw transformation of ownership, and braking handwheel 16 drives brake screws 17 and rotate in the same way, and the directed anti-rotation displacement sleeve 27 of brake screw 17 drives is to bottom offset.At this moment, directed anti-rotation displacement platform 21 and directed anti-rotation displacement nut with matching 28 combineds effect on the directed anti-rotation displacement sleeve 27, thereby ensured directed anti-rotation displacement sleeve 27 smoothly reliable upper and lower displacements and do not rotated break-in, and then the bull wheel rubbery cover tyre coincide and contacts behind the circular arc brake area that has ensured the frictional damping block rubber 23 on the frictional damping block rubber fixture 22 and the wheelchair, to increase the frictional force between the two.When the wheelchair occupant continues rotation brake handwheel 16, cause directed anti-rotation displacement sleeve 27 to continue to bottom offset, force frictional damping block rubber 23 further to compress bull wheel cover tire behind the wheelchair, until wheel is stopped operating, thereby make wheelchair exercise reliably or be parked in the descending way.After the wheelchair descending finished, the wheelchair occupant is reverse rotation braking handwheel 16 again, make frictional damping block rubber 23 and wheelchair after the bull wheel cover tire disengage, thereby wheelchair easily travels.Compress sealing nut 18 and be threaded, sealing ring is compressed steel bushing 24 play the position adjustments effect, finally reach the sealing and dustproof effect thereby adjust sealing ring 25 with descending shoe main body 19 usefulness.The effect of brake screw retainer spring steel ring 26 is the axial floats that prevent brake screw 17; Connect trip bolt 29 frictional damping block rubber fixture 22 and directed anti-rotation displacement sleeve 27 are fastenedly connected one; Fixture 20 is fastened on hand screw type wheelchair descending shoe near on the metal framework above the bull wheel cover tire behind the wheelchair.
Claims (1)
1. anti-skidding novel wheelchair of automatic anti-back descending that goes up a slope, it is characterized in that including the automatically anti-unloading device (4) of the left-handed friction-type ratchet braking in left side wheelchair upward slope, this device is installed on the wheelchair metal framework of wheelchair left side near bull wheel rubbery cover tyre top in back on the left of the wheelchair; One right side dextrorotation friction-type ratchet braking wheelchair goes up a slope and prevents that automatically unloading device (5), this device are installed on the wheelchair metal framework of wheelchair right side near bull wheel rubbery cover tyre top behind the wheelchair right side; One left side left-handed hand screw type wheelchair descending shoe (2), this device is installed on the wheelchair metal framework of wheelchair left side near bull wheel rubbery cover tyre front upper place, back, wheelchair left side, one right side dextrorotation hand screw type wheelchair descending shoe (3), this device are installed on the wheelchair metal framework of wheelchair right side near bull wheel rubbery cover tyre front upper place behind the wheelchair right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520125289 CN2905011Y (en) | 2005-12-12 | 2005-12-12 | A wheelchair capable of preventing against dropback when upgrading and sliding when downdrading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520125289 CN2905011Y (en) | 2005-12-12 | 2005-12-12 | A wheelchair capable of preventing against dropback when upgrading and sliding when downdrading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2905011Y true CN2905011Y (en) | 2007-05-30 |
Family
ID=38113637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520125289 Expired - Fee Related CN2905011Y (en) | 2005-12-12 | 2005-12-12 | A wheelchair capable of preventing against dropback when upgrading and sliding when downdrading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2905011Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011113310A1 (en) * | 2010-03-17 | 2011-09-22 | Lo Wang Kin | Wheel chair safety device |
| US8381883B2 (en) | 2010-03-17 | 2013-02-26 | Wang Kin LO | Wheelchair safety device |
| TWI410242B (en) * | 2011-07-14 | 2013-10-01 | ||
| CN106136586A (en) * | 2016-07-14 | 2016-11-23 | 合肥人和节能环保设备制造有限公司 | A kind of food conveyer auxiliary climbing apparatus |
| CN114028088A (en) * | 2021-12-27 | 2022-02-11 | 陈小玉 | Prevent foldable wheelchair on swift current slope |
-
2005
- 2005-12-12 CN CN 200520125289 patent/CN2905011Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011113310A1 (en) * | 2010-03-17 | 2011-09-22 | Lo Wang Kin | Wheel chair safety device |
| US8381883B2 (en) | 2010-03-17 | 2013-02-26 | Wang Kin LO | Wheelchair safety device |
| TWI410242B (en) * | 2011-07-14 | 2013-10-01 | ||
| CN106136586A (en) * | 2016-07-14 | 2016-11-23 | 合肥人和节能环保设备制造有限公司 | A kind of food conveyer auxiliary climbing apparatus |
| CN114028088A (en) * | 2021-12-27 | 2022-02-11 | 陈小玉 | Prevent foldable wheelchair on swift current slope |
| CN114028088B (en) * | 2021-12-27 | 2023-10-13 | 陈小玉 | Folding wheelchair capable of preventing sliding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20111212 |