CN102429783A - Wheelchair with liftable armrests - Google Patents
Wheelchair with liftable armrests Download PDFInfo
- Publication number
- CN102429783A CN102429783A CN2011104519926A CN201110451992A CN102429783A CN 102429783 A CN102429783 A CN 102429783A CN 2011104519926 A CN2011104519926 A CN 2011104519926A CN 201110451992 A CN201110451992 A CN 201110451992A CN 102429783 A CN102429783 A CN 102429783A
- Authority
- CN
- China
- Prior art keywords
- bullet pin
- pipe
- handrail
- wheelchair
- matched
- 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
Images
Abstract
The invention relates to a wheelchair, in particular to a wheelchair with liftable armrests. The wheelchair comprises a seat bracket, a seat, a backrest and push handles, wheels, armrests and pedals. The wheelchair is characterized in that: a long armrest pipe is jointed below the armrests and two ends of the long armrest pipe are fixedly provided with front and back guide rods; the outer peripheries of the front and the back guide rods are sleeved with front and back guide pipes with the lower ends which are fixedly arranged on the seat bracket; upper and lower reinforcing members are fixedly connected between the front and the back guide pipes; a plurality of positioning holes are arranged at the inner upper side of the front guide rod and a lifting adjusting device which is matched with the positioning holes is arranged at the inner side of the upper end of the front guide pipe; and a short armrest pipe is arranged in the middle of the outer upper side of the front guide pipe. The lifting adjusting device is composed of an adjusting handle, an elastic pin, an adjusting stop dog, an adjusting pipe and a pressure spring, wherein the back end of the elastic pin is in a threaded connection with the adjusting handle and the front end of the elastic pin is matched with the positioning holes; the adjusting stop dog is sleeved on the outer periphery of the elastic pin; the adjusting pipe is fixedly arranged at the inner side of the front guide pipe and matched with the elastic pin and the adjusting stop dog; and the pressure spring is sleeved on the outer periphery of the elastic pin. After being tried out, the wheelchair with the liftable armrests has the advantages of stability and reliability in load bearing, convenience and rapidness for lifting adjustment, less manufacturing cost and obviously-reduced construction cost function ratio.
Description
Technical field: the present invention relates to a kind of wheelchair, the liftable wheelchair of particularly a kind of handrail.
Background technology: prior art document 1 ZL 201020697542 discloses a kind of wheelchair of adjustable armrest height; " comprise vehicle frame, be rotatably connected on the vehicle frame both sides wheel, be arranged on seat portion and back-rest on the vehicle frame, the and arranged on left and right sides of vehicle frame has the bar that is used for fixing armrest assembly respectively, is fixedly connected with holder on the bar; armrest assembly comprises the handle portion that is available for users to grip and the connecting portion that extends along the direction that is approximately perpendicular to handle portion; connecting portion is inserted in the holder slidably, and connecting portion upper edge vertical is distributed with a plurality of locating holes, is connected with lock pin on the holder; lock pin has two operating positions; when lock pin is in first operating position, lock pin passes in the locating hole that holder is inserted in connecting portion, armrest assembly and bar relative fixed; When lock pin was in second operating position, lock pin and locating hole were separated, connecting portion and holder sliding connection." wheelchair of prior art document 1 disclosed adjustable armrest height exists following not enough: 1, intensity is crossed low and steadily reliable inadequately during load-bearing.Because the flat bar connecting portion that handrail only relies on monolithic to be equipped with several locating holes that are arranged above and below supports, and connecting portion inserts and only depends on the lock pin load-bearing when passing holder.In actual use; Not only its load bearing stength not enough and also firmly on handrail the time before and after unstable; Especially at the user weakness of the lower extremities, mainly rely on both hands to support in the process of standing up, handle portion skewed disengagement can occur from the upper end of flat bar connecting portion; Even the load-bearing lock pin in the holder fractures, and just exists the hidden danger that user is fallen together with the wheelchair upset.2, user can't be regulated handrail height voluntarily, and lock pin adopts spiral marking connection to pass a plurality of locating holes of the connecting portion of holder in insertion, obviously is sitting in user in the wheelchair and is the adjusting height process of bending over to accomplish such difficulty of can't bowing.
This shows that a kind of load-bearing of research design is steadily reliable, lift adjustment is convenient, and the liftable wheelchair of the handrail that the cost function ratio is low again is necessary.
Summary of the invention: the objective of the invention is to overcome the deficiency and the problem of prior art, a kind of load-bearing of research design is steadily reliable, and lift adjustment is convenient, the liftable wheelchair of the handrail that the cost function ratio is low again.
The objective of the invention is to realize like this: the liftable wheelchair of a kind of handrail; Comprise the chair frame, be positioned at the seat on the chair frame, be positioned at the backrest and the hand-pushing handle at rear, seat on the chair frame; Be positioned at the chair wheel of chair frame bottom; Be positioned at the handrail on both sides, seat on the chair frame, be positioned at the foot-operated of front lower place, seat on the chair frame, it is characterized in that: be linked with long handrail tube below the handrail; The two ends of long handrail tube are fixed with forward and backward guide rod; Forward and backward guide rod periphery is socketed with the lower end and is fixed in the forward and backward conduit on the chair frame, is connected with upper and lower reinforcement between the forward and backward conduit, said before on the guide rod, lean on the reinforcement inboard to be designed with the locating hole that several are arranged above and below; Between dummy pipe upper end and dummy pipe and the reinforcement junction, be designed with the elevation and subsidence regulating device that is matched with locating hole by the reinforcement inboard, outer middle side part is designed with the other end and is fixed in the short handrail tube on the chair frame on the dummy pipe.
The object of the invention can also take following further measure to realize:
Described elevation and subsidence regulating device is by regulating handle; The bullet pin of locating hole on the guide rod before the rear end is threadedly connected to regulating handle center, front end and is matched with; Be socketed on the adjusting block of bullet pin periphery; Be fixed in the dummy pipe inboard, be matched with the bullet pin and regulate the adjustable pipe of block, be socketed on bullet pin periphery, be matched with the stage clip of regulating block and bullet pin and constitute.Said adjustable pipe is meant with regulating with the bullet pin cooperating of block: the lumen diameter of adjustable pipe is matched in clearance greater than the external diameter of bullet pin between the front end external diameter of the lumen diameter of adjustable pipe and adjusting block.Said stage clip with regulate block and be meant cooperating of bullet pin: the two ends of stage clip are limited in the adjusting block respectively and snap between the step of front end and bullet pin front end cervical region of adjustable pipe inner chamber.Be meant cooperating of locating hole on said bullet pin front end and the preceding guide rod: between the external diameter of bullet pin front end and the locating hole aperture is matched in clearance; After bullet pin rear end was threadedly connected to regulating handle, bullet pin front end passed leading rod tube wall and gets into locating hole under the elastic restoring force effect of stage clip; When utilizing regulating handle to be compressed to stage clip to greatest extent with external force, bullet pin front end is from retreating in the locating hole to concordant with the dummy pipe lumen wall.
The liftable wheelchair of handrail that the present invention's enforcement obtains through on probation, demonstrates following beneficial effect:
1, load-bearing is steadily reliable.In the wheelchair of prior art document 1 disclosed adjustable armrest height; The flat bar connecting portion that handrail only relies on monolithic to be equipped with several locating holes that are arranged above and below supports; And connecting portion only depends on the lock pin load-bearing to compare fixedly the time; The present invention not only is linked with below the handrail and receives forward and backward guide rod, the long handrail tube of forward and backward conduit support on the chair frame, and also be connected with upper and lower reinforcement between the forward and backward conduit and make it more firm; Also be designed with between dummy pipe middle part and the chair frame and both can be user the usefulness that reliably makes things convenient for handrail is provided, can play the short handrail tube of firm effect again dummy pipe; Handrail load-bearing after the up-down is in the sturdy leading section of bullet pin that gets into locating hole; Possibly fracture because of load-bearing hardly; Moved back for 10,000 steps and say, even the sturdy leading section of bullet pin fractures, because forward and backward guide rod is inserted among the firm forward and backward conduit; The wheelchair that also will not have technical literature 1 fractures because of the load-bearing lock pin, the hidden danger that user is fallen together with the wheelchair upset.2, lift adjustment is convenient.Can't regulate handrail height voluntarily with user in the wheelchair of prior art document 1 disclosed adjustable armrest height; Can only by other people bow bend over ground first reverse rotation lock pin; Let it from original locating hole, withdraw from; Help user with carrying on the handrail or dropping to the height of need regulating again, aim at positioning hole corresponding and be rotated in the forward lock pin to restraint location and just calculate the process of accomplishing the handrail lift adjustment and compare, after the present invention only needs as showing among Fig. 4 regulating handle pulled out lightly; With the height of proposing or drop to the needs adjusting on the handrail; Unclamp regulating handle then, bullet pin leading section automatically gets into positioning hole corresponding under the elastic restoring force effect of stage clip, seem convenient and swift.3, low cost of manufacture.With complex structure, the parts precision cooperates requirement high, and manufacturing cost is high; The cost function ratio is too high; The part of forming the handrail adjusting device draw parts nearly prior art document 2 disclosed a kind of wheelchair armrest adjusting devices of more than 30 compare, the present invention is simple in structure, the parts precision cooperate require low; Low cost of manufacture, the cost function ratio is low.
Description of drawings: Fig. 1 is the sketch map that meets thematic structure of the present invention; Fig. 2 is the structural representation of armrest mechanism; Fig. 3,4 is the double sketch map that uses of handrail elevation and subsidence regulating device structure.
The specific embodiment: with implementation detail explanation of the present invention as follows below in conjunction with accompanying drawing:
Like Fig. 1, shown in 2, the liftable wheelchair of a kind of handrail comprises chair frame 1; Be positioned at the seat 2 on the chair frame; Be positioned at the backrest and the hand-pushing handle 3 at rear, seat on the chair frame, be positioned at the chair wheel 4 of chair frame bottom, be positioned at the handrail 5 on both sides, seat on the chair frame; Be positioned at foot-operated 6 of front lower place, seat on the chair frame; It is characterized in that armrest mechanism comprises: comprise being linked with long handrail tube 51 below the handrail, the two ends of long handrail tube are fixed with forward and backward guide rod 52,53, and forward and backward guide rod periphery is socketed with the lower end and is fixed in the forward and backward conduit 54,55 on the chair frame; Be connected with upper and lower reinforcement 56,57 between the forward and backward conduit; Before said on the guide rod, lean on the reinforcement inboard to be designed with several locating holes that is arranged above and below 521, between dummy pipe upper end and dummy pipe and the reinforcement junction, be designed with the elevation and subsidence regulating device 58 that is matched with locating hole by the reinforcement inboard, outer middle side part is designed with the other end and is fixed in the short handrail tube 59 on the chair frame on the dummy pipe.
Like Fig. 3, shown in 4; Described elevation and subsidence regulating device 58 is by regulating handle 581; The bullet pin 582 of locating hole 521 on the guide rod 52 before the rear end is threadedly connected to regulating handle center, front end and is matched with; Be socketed on the adjusting block 583 of bullet pin periphery, be fixed in the dummy pipe inboard, be matched with the bullet pin and regulate the adjustable pipe 584 of block, be socketed on bullet pin periphery, be matched with the stage clip 585 of regulating block and bullet pin and constitute.Said adjustable pipe 584 is meant with regulating with bullet pin 582 cooperating of block 583: the lumen diameter of adjustable pipe is matched in clearance greater than the external diameter of bullet pin between the front end external diameter of the lumen diameter of adjustable pipe and adjusting block.Said stage clip 585 with regulate block 583 and be meant cooperating of bullet pin 582: the two ends of stage clip are limited in the adjusting block respectively and snap between the step of front end and bullet pin front end cervical region of adjustable pipe 584 inner chambers.Be meant cooperating of locating hole 521 on said bullet pin 582 front ends and the preceding guide rod 52: between the external diameter of bullet pin front end and the locating hole aperture is matched in clearance; After bullet pin rear end was threadedly connected to regulating handle, guide rod 52 tube walls got into locating hole before bullet pin front end passed under the elastic restoring force effect of stage clip 585; When utilizing regulating handle to be compressed to stage clip to greatest extent with external force, bullet pin front end is from retreating in the locating hole to concordant with dummy pipe 54 lumen walls.
Claims (5)
1. liftable wheelchair of handrail; Comprise chair frame (1), be positioned at the seat (2) on the chair frame, be positioned at the backrest and the hand-pushing handle (3) at rear, seat on the chair frame; Be positioned at the chair wheel (4) of chair frame bottom; Be positioned at the handrail (5) on both sides, seat on the chair frame, be positioned at foot-operated (6) of front lower place, seat on the chair frame, it is characterized in that armrest mechanism comprises: be linked with long handrail tube (51) below the handrail; The two ends of long handrail tube are fixed with forward and backward guide rod (52,53); Forward and backward guide rod periphery is socketed with the lower end and is fixed in the forward and backward conduit (54,55) on the chair frame, is connected with upper and lower reinforcement (56,57) between the forward and backward conduit, said before on the guide rod, lean on the reinforcement inboard to be designed with several locating holes that is arranged above and below (521); Between dummy pipe upper end and dummy pipe and the reinforcement junction, be designed with the elevation and subsidence regulating device (58) that is matched with locating hole by the reinforcement inboard, outer middle side part is designed with the other end and is fixed in the short handrail tube (59) on the chair frame on the dummy pipe.
2. liftable wheelchair of handrail according to claim 1; It is characterized in that described elevation and subsidence regulating device (58) is by regulating handle (581); The rear end is threadedly connected to the regulating handle center, front end is matched with the bullet pin (582) that preceding guide rod (52) is gone up locating hole (521); Be socketed on the adjusting block (583) of bullet pin periphery, be fixed in the dummy pipe inboard, be matched with the bullet pin and regulate the adjustable pipe (584) of block, be socketed on bullet pin periphery, be matched with the stage clip (585) of regulating block and bullet pin and constitute.
3. liftable wheelchair of handrail according to claim 2; It is characterized in that being meant said adjustable pipe (584) and bullet pin (582) and cooperating of adjusting block (583): the lumen diameter of adjustable pipe is matched in clearance greater than the external diameter of bullet pin between the front end external diameter of the lumen diameter of adjustable pipe and adjusting block.
4. liftable wheelchair of handrail according to claim 2 is characterized in that said stage clip (585) and regulates block (583) and be meant cooperating of bullet pin (582): the two ends of stage clip are limited in the adjusting block respectively and snap between the step of front end and bullet pin front end cervical region of adjustable pipe (584) inner chamber.
5. liftable wheelchair of handrail according to claim 2, it is characterized in that said bullet pin (582) front end and preceding guide rod (52) are gone up to be meant cooperating of locating hole (521): between the external diameter of bullet pin front end and the locating hole aperture is matched in clearance; After bullet pin rear end was threadedly connected to regulating handle, bullet pin front end passed preceding guide rod (52) tube wall and gets into locating hole under the elastic restoring force effect of stage clip (585); When utilizing regulating handle to be compressed to stage clip to greatest extent with external force, bullet pin front end is from retreating in the locating hole to concordant with dummy pipe (54) lumen wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104519926A CN102429783A (en) | 2011-12-28 | 2011-12-28 | Wheelchair with liftable armrests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104519926A CN102429783A (en) | 2011-12-28 | 2011-12-28 | Wheelchair with liftable armrests |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102429783A true CN102429783A (en) | 2012-05-02 |
Family
ID=45978375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104519926A Pending CN102429783A (en) | 2011-12-28 | 2011-12-28 | Wheelchair with liftable armrests |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102429783A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997382A (en) * | 2016-07-18 | 2016-10-12 | 张国良 | Power-assisted wheelchair |
| CN110123540A (en) * | 2019-06-21 | 2019-08-16 | 浙江孚邦科技有限公司 | A kind of seat |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006288559A (en) * | 2005-04-07 | 2006-10-26 | Uchie Kk | Foldable wheelchair |
| CN201147420Y (en) * | 2008-01-11 | 2008-11-12 | 李钢 | Leisure seat instead of walking |
| CN201379723Y (en) * | 2009-01-08 | 2010-01-13 | 周德宝 | Electric walking and standing wheelchair |
| CN102100596A (en) * | 2009-12-21 | 2011-06-22 | 天津市鑫成新科贸有限公司 | Chair for senile dementia |
| CN202397719U (en) * | 2011-12-28 | 2012-08-29 | 江苏亚希维医疗器械有限责任公司 | Wheel chair with liftable armrests |
-
2011
- 2011-12-28 CN CN2011104519926A patent/CN102429783A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006288559A (en) * | 2005-04-07 | 2006-10-26 | Uchie Kk | Foldable wheelchair |
| CN201147420Y (en) * | 2008-01-11 | 2008-11-12 | 李钢 | Leisure seat instead of walking |
| CN201379723Y (en) * | 2009-01-08 | 2010-01-13 | 周德宝 | Electric walking and standing wheelchair |
| CN102100596A (en) * | 2009-12-21 | 2011-06-22 | 天津市鑫成新科贸有限公司 | Chair for senile dementia |
| CN202397719U (en) * | 2011-12-28 | 2012-08-29 | 江苏亚希维医疗器械有限责任公司 | Wheel chair with liftable armrests |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105997382A (en) * | 2016-07-18 | 2016-10-12 | 张国良 | Power-assisted wheelchair |
| CN110123540A (en) * | 2019-06-21 | 2019-08-16 | 浙江孚邦科技有限公司 | A kind of seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202397719U (en) | Wheel chair with liftable armrests | |
| US20070085301A1 (en) | Center-of-gravity tilt-in-space wheelchair | |
| KR20170005480A (en) | Sit-to-stand and walking assistive mobility aid | |
| CN205214731U (en) | Office chair with incline to facing upward and connect tray and over -and -under type bracket mechanism | |
| CN101810409A (en) | Improved structure of office chair | |
| CN106029033B (en) | Wheel chair | |
| CN102429783A (en) | Wheelchair with liftable armrests | |
| CN201658471U (en) | Wheel chair capable of being adjusted to wheeled stretcher | |
| CN201578458U (en) | Wheel chair with plurality of adjustable parts | |
| US20150183344A1 (en) | Adjustment unit for a vehicle on seat and vehicle seat | |
| CN202478010U (en) | Wheelchair | |
| JP5980572B2 (en) | wheelchair | |
| JP2016022836A (en) | Hand cart | |
| CN201295329Y (en) | A multifunctional medical stretcher vehicle | |
| CN209827285U (en) | Sliding block folding type backward-turning movable armrest wheelchair | |
| CN102551968B (en) | Wheelchair with sideward sliding function | |
| JP2008295656A (en) | Running posture adjusting mechanism for wheelchair | |
| CN210408949U (en) | Body position vehicle for pregnant woman | |
| JP6263496B2 (en) | Chair | |
| CN208611152U (en) | A kind of nursing dining table wheelchair | |
| JP5815357B2 (en) | Walking assistance vehicle | |
| US10946916B1 (en) | Assisted spring seat height optimization lift | |
| CN201361193Y (en) | Adjustable wheelchair | |
| CN203060105U (en) | Height-adjustable armrest of wheel chair | |
| JP2019051175A (en) | Handrail device for toilet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |