CN208989414U - Backrest and across foot adjustable angle electric wheelchair - Google Patents
Backrest and across foot adjustable angle electric wheelchair Download PDFInfo
- Publication number
- CN208989414U CN208989414U CN201821232768.1U CN201821232768U CN208989414U CN 208989414 U CN208989414 U CN 208989414U CN 201821232768 U CN201821232768 U CN 201821232768U CN 208989414 U CN208989414 U CN 208989414U
- Authority
- CN
- China
- Prior art keywords
- foot
- pin
- backrest
- connection sheet
- assembly
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of backrest and across foot adjustable angle electric wheelchairs, including vehicle frame, front-wheel, rear-wheel, handrail and across foot mechanism, the vehicle frame includes a backrest portion and seating portion, it further include adjusting connection sheet, connection sheet will be adjusted with the shaft by pin hole to connect with backrest portion, several adjustment holes are provided on adjusting connection sheet, it is provided with the Assembly of pin that can be adjusted axially position in backrest portion bottom, Assembly of pin passes through one of that adjustment hole will adjust connection sheet and backrest portion is fixed；Described across foot includes column, is arranged foot pad in column bottom, and described across foot further includes the rotating part and fixed part being connected by a hinge.Using the clutch of position limited gear and gear grooved, the angular adjustment across foot entirety may be implemented, and be not take up volume；Assembly of pin is unclamped, back is rotated at this time, is inserted into corresponding adjustment hole when turning to proper angle, then by Assembly of pin, connection sheet will be adjusted and backrest portion is fixed, realize back angular adjustment.
Description
Technical field
The present invention relates to wheelchair technical fields, and in particular to a kind of backrest and across foot adjustable angle electric wheelchair.
Background technique
The patent of authorization Publication No. CN206080878U discloses a kind of adjustable wheelchair of back angle and its servo-actuated helps
Mobile phone structure, wheelchair, including wheelchair frame are provided with cushion on wheelchair frame, are convexly equipped on wheelchair frame in the two sides of seat cushion and prolong upwards
The rear portion of the handrail tube stretched, cushion has the chair back, and for chair back rolling assembling on wheelchair frame, the wheelchair further includes servo-actuated handrail machine
Structure, one end of the expansion baffle rod of servo-actuated armrest mechanism is hinged on handrail tube, the other end is hinged on the side of the chair back.This is practical
The two sides of novel cushion and the chair back are respectively arranged with expansion baffle rod, and one end of expansion baffle rod is hinged on the wheelchair of cushion side edge
On frame, the other end of expansion baffle rod is hinged on the side of the chair back, and expansion baffle rod can stop clothes flare, the structure letter of telescopic rod
It is single, it can be flexible with the angle of the chair back.However the regulative mode is complicated, it has not been convenient to carry out angular adjustment.
Secondly, existing wheelchair is being mostly F pipe structure across foot, it is also more inconvenient when carrying out angular adjustment.
Summary of the invention
The technical problem to be solved in the present invention is to provide to back and across foot carry out angular adjustment and regulating mechanism volume
Lesser electric wheelchair.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows: a kind of backrest and across foot angle
Adjustable electric wheelchair, including vehicle frame, front-wheel, rear-wheel, handrail and across foot mechanism, the vehicle frame include a backrest portion and seating
Portion further includes adjusting connection sheet, and described one end for adjusting connection sheet is fixed with seating portion, and the other end is provided with pin hole, with passing through
The shaft of pin hole will adjust connection sheet and connect with backrest portion, be provided with several adjustment holes, adjustment hole to pin on adjusting connection sheet
The distance in hole is identical, and the Assembly of pin that can be adjusted axially position is provided in backrest portion bottom, and Assembly of pin passes through one of
Adjustment hole will adjust connection sheet and backrest portion is fixed；Described across foot includes column, is arranged foot pad in column bottom, it is described across
Foot further includes the rotating part and fixed part being connected by a hinge, and the fixed part is arranged on vehicle frame, and the rotating part is mounted on
On column, a position limited gear is set between rotating part and fixed part, is respectively provided in rotating part and fixed part and limiting tooth
Take turns the corresponding gear grooved of shape, it is described across foot include resetting-mechanism for resetting position limited gear and by position limited gear from its
The separating mechanism released in the gear grooved of middle side, position limited gear are partially located in its natural state in the gear grooved of rotating part,
Position is located in the gear grooved of fixed part.
Further, the Assembly of pin includes spacing collar, pin shaft and spring, and spacing collar is located in backrest portion,
Spring is located in spacing collar, and the front end of pin shaft is protruded into adjustment hole, and rear end offsets with spring, the other end and limit sleeve of spring
Cylinder inner face offsets, and spring resets pin shaft, and the rear end of pin shaft is provided with extension, and extension stretches out spacing collar.
Further, the adjusting connection sheet is two, is located at backrest portion two sides, and Assembly of pin is two groups and adjusting
Connection sheet corresponds, and passes through a drawstring connection between the pin shaft extension of two groups of Assembly of pin.
Further, the resetting-mechanism is spring, and separating mechanism includes a cover board, is provided with protrusion on cover board, covers
Plate is located at the outside of fixed part, and protrusion is protruded on the inside of fixed part and offseted with position limited gear side, and spring is located at position limited gear
The other side, both ends offset with position limited gear and rotating part respectively.
Further, the raised end is in snap fit shape, card slot is provided on fixed part, protrusion protrudes into card slot, convex
End is played to match with card slot.
Further, the cross section of the teeth of the position limited gear is in triangular shape.
It further, further include an anti-rear focusing device, which includes bracket and idler wheel, riding setting, bracket
One end and wheelchair frame be connected and fixed by horizontal rotating shaft, idler wheel is located at the other end of bracket, and any point on idler wheel
The radius of rear-wheel is all larger than to the vertical range of rear axis line, and idler wheel is located at the rear of rear-wheel.
Further, the anti-rear focusing device further includes damping spring, and damping spring one end is fixed on wheelchair frame, separately
One end is connect with bracket, and tie point and idler wheel are located at the same side of horizontal rotating shaft, and bracket can be rotated around trunnion axis.
Further, the backrest includes a U-tube body and harness, and described harness one end is fixed on U-tube body
Side, the other end cross the removable connection of another side with harness after the other side bending of U-tube body.
From above-mentioned technical proposal it can be seen that the utility model have the advantage that using position limited gear and gear grooved from
It closes, the angular adjustment across foot entirety may be implemented, and be not take up volume, facilitate the design of the functions such as the folding of entire wheelchair；When
When needing to adjust back angle, Assembly of pin is unclamped, rotates back at this time, when turning to proper angle, then by Assembly of pin
It is inserted into corresponding adjustment hole, connection sheet will be adjusted and backrest portion is fixed.Pull drawstring that synchronous pulling two sides may be implemented
Pin shaft, be not required to be respectively regulated the Assembly of pin of two sides, it is easy to operate.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of Assembly of pin in the present invention；
Fig. 4 is the structural schematic diagram across foot in the present invention；
Fig. 5 is the structural schematic diagram of the rotating mechanism across foot in the present invention.
Specific embodiment
A specific embodiment of the invention is illustrated below in conjunction with attached drawing.
As illustrated in fig. 1 and 2, a kind of backrest of the invention and across foot adjustable angle electric wheelchair include vehicle frame 10, front-wheel
80, rear-wheel 30, handrail 60, controller 70 and across foot mechanism 20, the vehicle frame 10 include a backrest portion 50 and seating portion 40.
It further include adjusting connection sheet 54, described one end for adjusting connection sheet 54 and seating portion 40 are fixed, and the other end is provided with pin hole 51, use
Connection sheet will be adjusted by the shaft of pin hole 51 to connect with backrest portion.Several adjustment holes 52 are provided on adjusting connection sheet, are adjusted
The distance of knothole 52 to pin hole 51 is identical, and adjusting pitch of holes is identical, and the utility model is provided with 5 adjustment holes.In backrest portion
Bottom is provided with the Assembly of pin 90 that can be adjusted axially position, and Assembly of pin 90, which passes through one of adjustment hole, will adjust connection sheet
It is fixed with backrest portion.
When needing to adjust back angle, Assembly of pin is unclamped, rotates back at this time, when turning to proper angle, then
Assembly of pin is inserted into corresponding adjustment hole, connection sheet will be adjusted and backrest portion is fixed.
The specific structure is shown in FIG. 3 for Assembly of pin, and Assembly of pin includes spacing collar 93, pin shaft 92 and spring 95,
Spacing collar 93 is inserted in backrest portion, and spring position 95 is filled in spacing collar 93, and the front end of pin shaft 92 can protrude into adjustment hole
In, rear end offsets with spring 95, and the other end and the spacing collar inner face of spring 95 offset, and spring 95 is for answering pin shaft
Position, the rear end of pin shaft 35 is provided with extension 94, and extension 94 stretches out spacing collar.
Adjusting connection sheet is two, is located at backrest portion two sides, and Assembly of pin is two groups a pair of with adjusting connection sheet one
It answers, is connected between the pin shaft extension of two groups of Assembly of pin by a drawstring 96, drawstring can have certain elasticity, pulls and draws
The synchronous pin shaft for pulling two sides may be implemented in rope, is not required to be respectively regulated the Assembly of pin of two sides, easy to operate.
As shown in figure 4, described include column 2 across foot 20, foot pad 1, the angular adjustment across foot are set in 2 bottom of column
Mechanism is made of the rotating part 3 being connected by a hinge and fixed part 4 etc., and the fixed part is arranged on vehicle frame 10, in fixed part
End be provided with the arc-shaped connection sheet 6 of column plug body part 5 and cross section, screw hole is equipped in connection sheet 6 and passes through spiral shell
Connection sheet is fixed on tube body outer peripheral surface to be connected by bolt, and column plug body part 5 is for filling in tube body end to be connected, column plug
Several axially distributed reinforcing ribs are provided on the outer peripheral surface of body.The axial line of column plug body part 5 and the screw hole of connection sheet
It is vertically arranged, screw hole is located at the center of connection sheet.
When this is mounted on wheelchair across foot, column plug body part is filled in the horizontal of wheelchair frame first, is connected
The outer peripheral surface of piece and tube body offsets, and is fixed tube body and connection sheet with along the bolt that tube body is arranged radially, thus will across foot installation
On vehicle frame.
As shown in figure 5, rotating part 3 is fixed on column, a position limited gear is set between rotating part 3 and fixed part 4
32, gear grooved 41 corresponding with position limited gear shape is respectively provided in rotating part 3 and fixed part 4 (in the gear grooved figure of rotating part
Do not show), position limited gear is partially located in its natural state in the gear grooved of rotating part, some is located at the tooth of fixed part
In race, due to the effect of position limited gear, rotating part can not be rotated.
Angle adjusting mechanism further includes spring 31 and separating mechanism, and wherein separating mechanism includes a cover board 43, on cover board
It is provided with protrusion 42, cover board 43 is located at the outside of fixed part, and protrusion 42 is protruded on the inside of fixed part and offseted with position limited gear side.
When pressing lower cover plate, protrusion pushes position limited gear to be pushed out in the gear grooved 41 of fixed part, separates the two, at this time rotating part
It may be rotated, carry out angular adjustment.Spring 31 is located between position limited gear and rotation, and both ends offset with the two respectively,
After angular adjustment, cover board is unclamped, position limited gear is pushed in the gear grooved of fixed part by spring, to prevent rotating part
Rotation.Rotating part and fixed part can be connected with the rivet 33 for passing through fixed part, position limited gear and spring.
Raised 42 ends are in snap fit shape, and card slot 44 is provided on fixed part, and protrusion 42 protrudes into card slot, raised end with
Card slot matches.The cross section of the teeth of position limited gear is in triangular shape, and the number of teeth can be set according to angular adjustment precision, number
Amount is more, and precision is higher.
As shown in Fig. 2, the present invention is equipped with including an anti-rear focusing device, which includes bracket 8 and idler wheel 9, bracket 8
It is obliquely installed.One end of bracket 8 is connected and fixed with wheelchair frame 10 by horizontal rotating shaft, and idler wheel 9 is located at the other end of bracket 8
Portion, and the vertical range of any point to rear axis line is all larger than the radius of rear-wheel on idler wheel 9, and idler wheel 9 is located at rear-wheel
Rear.When wheelchair is toppled over backward, the idler wheel being located behind can contact ground, so that wheelchair continuation be prevented to topple over backward.
Focusing device further includes damping spring 7 after anti-, and 7 one end of damping spring is fixed on wheelchair frame, the other end and bracket
Connection, and tie point and idler wheel 9 are located at the same side of horizontal rotating shaft, bracket can be rotated around trunnion axis.Damping spring not only can be with
Cushioning effect is played, can also holder pivots be played with buffer function, reduces bracket damage.The bottom of idler wheel and the bottom of rear-wheel
Difference in height is 10~15cm, can limit the sweptback angle of wheelchair by difference in height.
In order to adapt to the old man of some hunchbacks, it is provided with such as flowering structure.The backrest includes a U-tube body 98 and back
Band 97, described 97 one end of harness are fixed on the side of U-tube body, the other end cross after the other side bending of U-tube body with harness
The removable connection of another side, such as use velcro, button form.By adjusting the lateral length of harness to adapt to hunchback
Back.
Claims (9)
1. a kind of backrest and across foot adjustable angle electric wheelchair, including vehicle frame, front-wheel, rear-wheel, handrail and across foot mechanism, institute
Stating vehicle frame includes a backrest portion and seating portion, it is characterised in that: and it further include adjusting connection sheet, described one end for adjusting connection sheet
It is fixed with seating portion, the other end is provided with pin hole, will adjust connection sheet with the shaft by pin hole and connect with backrest portion, and adjust
Several adjustment holes are provided in connection sheet, the distance of adjustment hole to pin hole is identical, and being provided in backrest portion bottom can be adjusted axially
The Assembly of pin of position, Assembly of pin, which passes through one of adjustment hole and will adjust connection sheet and backrest portion, to be fixed；It is described across
Foot includes column, foot pad is arranged in column bottom, described across foot further includes the rotating part and fixed part being connected by a hinge, described
Fixed part is arranged on vehicle frame, and the rotating part is mounted on column, and a limiting tooth is arranged between rotating part and fixed part
Wheel, is respectively provided with gear grooved corresponding with position limited gear shape in rotating part and fixed part, and described across foot includes for that will limit
The resetting-mechanism of reset gear and the separating mechanism for releasing position limited gear from the gear grooved of wherein side, position limited gear exist
Part is located in the gear grooved of rotating part under natural conditions, and position is located in the gear grooved of fixed part.
2. backrest according to claim 1 and across foot adjustable angle electric wheelchair, it is characterised in that: the Assembly of pin
Including spacing collar, pin shaft and spring, spacing collar is located in backrest portion, and spring is located in spacing collar, the front end of pin shaft
It protrudes into adjustment hole, rear end offsets with spring, and the other end and the spacing collar inner face of spring offset, and spring answers pin shaft
Position, the rear end of pin shaft is provided with extension, and extension stretches out spacing collar.
3. backrest according to claim 2 and across foot adjustable angle electric wheelchair, it is characterised in that: the adjusting connection
Piece is two, is located at backrest portion two sides, and Assembly of pin is two groups and corresponds with connection sheet is adjusted, two groups of Assembly of pin
Pin shaft is connected between extending by a drawstring.
4. backrest according to claim 1 and across foot adjustable angle electric wheelchair, it is characterised in that: the resetting-mechanism
For spring, separating mechanism includes a cover board, and protrusion is provided on cover board, and cover board is located at the outside of fixed part, and protrusion protrudes into solid
Determine to offset on the inside of portion and with position limited gear side, spring is located at the other side of position limited gear, both ends respectively with position limited gear and rotation
Transfer part offsets.
5. backrest according to claim 4 and across foot adjustable angle electric wheelchair, it is characterised in that: the raised end
In snap fit shape, card slot is provided on fixed part, protrusion protrudes into card slot, and raised end is matched with card slot.
6. backrest according to claim 5 and across foot adjustable angle electric wheelchair, it is characterised in that: the position limited gear
Teeth cross section be in triangular shape.
7. backrest according to claim 1 and across foot adjustable angle electric wheelchair, it is characterised in that: further include one anti-
Focusing device afterwards, the device include bracket and idler wheel, and riding setting, one end of bracket and wheelchair frame are connected by horizontal rotating shaft
Fixation is connect, after idler wheel is located at the other end of bracket, and the vertical range of any point to rear axis line is all larger than on idler wheel
The radius of wheel, and idler wheel is located at the rear of rear-wheel.
8. backrest according to claim 7 and across foot adjustable angle electric wheelchair, it is characterised in that: the anti-rear upside-down mounting
Setting further includes damping spring, and damping spring one end is fixed on wheelchair frame, and the other end is connect with bracket, and tie point and idler wheel
Positioned at the same side of horizontal rotating shaft, bracket can be rotated around trunnion axis.
9. backrest according to claim 1 and across foot adjustable angle electric wheelchair, it is characterised in that: the backrest includes
One U-tube body and harness, described harness one end are fixed on the side of U-tube body, and the other end crosses the other side of U-tube body
After bending with the removable connection of the another side of harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821232768.1U CN208989414U (en) | 2018-08-01 | 2018-08-01 | Backrest and across foot adjustable angle electric wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821232768.1U CN208989414U (en) | 2018-08-01 | 2018-08-01 | Backrest and across foot adjustable angle electric wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208989414U true CN208989414U (en) | 2019-06-18 |
Family
ID=66798028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821232768.1U Active CN208989414U (en) | 2018-08-01 | 2018-08-01 | Backrest and across foot adjustable angle electric wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208989414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108743085A (en) * | 2018-08-01 | 2018-11-06 | 吉芮医疗器械（上海）有限公司 | Backrest and across foot adjustable angle electric wheelchair |
-
2018
- 2018-08-01 CN CN201821232768.1U patent/CN208989414U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108743085A (en) * | 2018-08-01 | 2018-11-06 | 吉芮医疗器械（上海）有限公司 | Backrest and across foot adjustable angle electric wheelchair |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108743085A (en) | Backrest and across foot adjustable angle electric wheelchair | |
| CN102530047B (en) | Infant bearing device | |
| CN106379476A (en) | Axial regulation type front wheel for children tricycle | |
| CN208989414U (en) | Backrest and across foot adjustable angle electric wheelchair | |
| US6074002A (en) | Bicycle seat | |
| CN106236429B (en) | A kind of foot pedal of adjustable angle and the wheelchair with the foot pedal | |
| CN208989406U (en) | Back adjustable angle wheelchair | |
| CN109567452A (en) | It is a kind of to sit seat of lying | |
| CN210882480U (en) | Shock-absorbing structure and scooter | |
| CN105708228B (en) | Dining chair for children | |
| CN108275042A (en) | A kind of automobile seat armrest device | |
| CN210761124U (en) | Telescopic electric vehicle | |
| CN206124621U (en) | Quick pull -plug type's wheel installation mechanism and wheelchair of this mechanism | |
| CN201055135Y (en) | Multifunctional easy chair | |
| JP2007521998A (en) | Bicycle riding saddle | |
| CN208989413U (en) | Electric wheelchair across foot adjustable angle | |
| CN211308861U (en) | Scooter | |
| CN206261755U (en) | A kind of regulation support plate structure and the wheelchair with the structure | |
| CN209377917U (en) | The wheelchair turned over after preventing | |
| CN209037745U (en) | One kind having basket shooting apptss child's bicycle | |
| CN208069941U (en) | Old trishaw | |
| CN206198182U (en) | A kind of skirt guard position adjusting mechanism and the wheelchair with the mechanism | |
| CN106344290B (en) | It is a kind of to adjust branch harden structure and the wheelchair with the structure | |
| CN210258536U (en) | Adjustable seat canopy frame for seat frame | |
| CN214524169U (en) | Elastic saddle for bicycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |