CN215274002U - Seat position back-inclined adjusting and positioning device of wheelchair - Google Patents
Seat position back-inclined adjusting and positioning device of wheelchair Download PDFInfo
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- CN215274002U CN215274002U CN202120121326.5U CN202120121326U CN215274002U CN 215274002 U CN215274002 U CN 215274002U CN 202120121326 U CN202120121326 U CN 202120121326U CN 215274002 U CN215274002 U CN 215274002U
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Abstract
The utility model discloses a chair seat back inclination adjusting and positioning device of a wheelchair, which comprises a side foot frame, a chair seat frame and a backrest frame; the bottom of the backrest frame is fixedly connected with the rear end of the seat frame; the side foot frames are movably connected with the seat frame, so that the seat frame and the backrest frame can integrally tilt backwards during adjustment; a supporting and positioning adjusting device is connected between the rear part of the side foot rest and the backrest frame, when the seat frame and the backrest frame tilt backwards, the tilted angles of the seat frame and the backrest frame can be fixed through the supporting and positioning adjusting device, a patient can take a sitting posture or lie down at a required angle, the chair cannot rebound and reset after being fixed, and the chair can reset upwards after being unlocked; after the chair is inclined, the included angle between the chair seat frame and the backrest frame can form a pocket shape, the body of a patient can be tilted backwards, the patient is prevented from inclining forwards, the patient can sit more stably, the patient is prevented from sliding forwards, meanwhile, the chair is also beneficial to the patient to lie backwards for rest, and the rest comfort level is increased.
Description
Technical Field
The utility model relates to a wheelchair adjusting device especially relates to a seat support position back slope of wheelchair adjusts positioner.
Background
The seat of the existing wheelchair is fixed and flat and can not be adjusted, the backrest of the existing wheelchair is relatively straight and can not be inclined backwards for adjustment, patients who cannot be self-care and can not sit straight can easily slide forwards, the body and the head of the patient can incline forwards, the sitting stability of the patient is not facilitated, and the patient can not have a rest when the seat cannot be adjusted; when the chair seat and the backrest which can be inclined later are arranged, a fixing device which can fix the inclined chair seat and the inclined backrest is also developed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure, reasonable in design can fix seat support frame, the back frame wheelchair after backward tilt's seat support position back tilt adjustment positioner.
The scheme for solving the technical problems is as follows:
a chair seat back inclination adjusting and positioning device of a wheelchair comprises a side foot frame, a chair seat frame and a backrest frame; the bottom of the backrest frame is fixedly connected with the rear end of the seat frame; the side foot frames are movably connected with the seat position frame, and the seat position frame and the backrest frame can integrally tilt backwards; and a supporting and positioning adjusting device is connected between the rear part of the side foot rest and the backrest frame and is used for fixing the angle of the seat position frame and the backrest frame after the backrest frame tilts backwards.
The preferable technical scheme is further as follows: the support positioning adjusting device comprises a gas rod and a pneumatic adjusting hand brake, wherein the length of the gas rod can be adjusted in a telescopic mode, the upper end of the gas rod is movably connected with the backrest frame, the lower end of the gas rod is movably connected with the rear bottom of the side foot frame, the pneumatic adjusting hand brake is fixed on the upper portion of the backrest frame, the pneumatic adjusting hand brake is connected with a steel wire rope, and the other end of the steel wire rope is connected with a bottom valve of the gas rod.
The preferable technical scheme is further as follows: the middle edge of the seat frame and the top middle part of the side foot rest are provided with symmetrical screw holes, the two screw holes are connected with bolts in a transverse mode, the side foot rest supports the seat frame, the seat frame can rotate obliquely relative to the back of the side foot rest through the matching of the screw holes and the bolts, and therefore the movable connection between the seat frame and the side foot rest is formed.
The preferable technical scheme is further as follows: be provided with the rotational positioning device that can make seat support position frame, the synchronous back slope of back frame adjust between side foot rest and the seat support position frame, rotational positioning device is including setting up arc positioning groove and the at least one nail body of fixed connection at seat support position frame lateral wall of the trend of at least one circular arc line on the side foot rest, nail body cross-under is fixed a position on the arc positioning groove and can follow the seat support position frame, the back frame interval in the arc positioning groove when back slope is adjusted walks about, seat support position frame, back frame pass through the nail body, the cooperation of arc positioning groove realizes back slope angle and adjusts.
The preferable technical scheme is further as follows: the rear inclination adjusting angle of the rotary positioning device is 1-60 degrees.
The preferable technical scheme is further as follows: the number of the arc-shaped positioning grooves is two; the nail body is two.
The utility model discloses a positioner is adjusted in seat support position back slope of wheelchair advantage does: the product comprises a side foot frame, a seat position frame and a backrest frame; the bottom of the backrest frame is fixedly connected with the rear end of the seat frame; the side foot frames are movably connected with the seat frame, so that the seat frame and the backrest frame can integrally tilt backwards during adjustment; a supporting and positioning adjusting device is connected between the rear part of the side foot rest and the backrest frame, when the seat frame and the backrest frame tilt backwards, the tilted angles of the seat frame and the backrest frame can be fixed through the supporting and positioning adjusting device, a patient can take a sitting posture or lie down at a required angle, the chair cannot rebound and reset after being fixed, and the chair can reset upwards after being unlocked; after the chair is inclined, the included angle between the chair seat frame and the backrest frame can form a pocket shape, the body of a patient can be tilted backwards, the patient is prevented from inclining forwards, the patient can sit more stably, the patient is prevented from sliding forwards, meanwhile, the chair is also beneficial to the patient to lie backwards for rest, and the rest comfort level is increased.
Drawings
FIG. 1 is a schematic view of the product of the present invention in a normal state before adjustment;
FIG. 2 is a schematic view of the product of the present invention in a post tilt adjustment state;
FIG. 3 is a schematic view of the product of the present invention in a normal state without a support positioning adjustment device before adjustment;
FIG. 4 is a schematic view of the product of the present invention in a state after the back tilt adjustment and with a supporting and positioning adjustment device;
FIG. 5 is a schematic view of a seat holder of the present invention;
fig. 6 is a schematic view of a lateral stand of the present invention.
The device comprises a side foot frame 1, a seat frame 2, a backrest frame 3, a rotary positioning device 4, an arc-shaped positioning groove 401, a nail body 402, an upper bent rod 11, a lower cross rod 12, a side plate 13, an upper cross rod 21, a lower bent rod 202, a vertical rod 203, a support adjusting device 5, an air rod 51, an air pressure adjusting hand brake 52 and a steel wire rope 53; screw hole 2A, screw hole 2B, bolt 2C.
Detailed Description
As shown in fig. 3 to 5: a chair seat back inclination adjusting and positioning device of a wheelchair comprises a side foot frame 1, a chair seat frame 2 and a backrest frame 3; the bottom of the backrest frame 3 is fixedly connected with the rear end of the seat frame 2; the side foot frames 1 are movably connected with the seat frame 2, and the seat frame 2 and the backrest frame 3 can integrally tilt backwards; a supporting and positioning adjusting device 5 is connected between the rear part of the side foot frame 1 and the backrest frame 3, and the supporting and positioning adjusting device 5 is used for fixing the backward inclined angles of the seat frame 2 and the backrest frame 3 (for example, the backward inclined angles are 25 degrees, 30 degrees, 45 degrees and the like, any angle of 1-60 degrees can be positioned, and the inclined angle is determined according to the selection of a user); the working process is as follows: when the seat frame 2 and the backrest frame 3 are inclined backwards, the inclined angles of the seat frame 2 and the backrest frame 3 can be fixed through the supporting and positioning adjusting device, the required angle for sitting or lying down of a patient is given, the chair cannot rebound to reset after being fixed, and the chair can reset upwards after being unlocked; after the chair is inclined, the included angle between the chair seat frame and the backrest frame can form a pocket shape, the body of a patient can be tilted backwards, the patient is prevented from inclining forwards, the patient can sit more stably, the patient is prevented from sliding forwards, meanwhile, the chair is also beneficial to the patient to lie backwards for rest, and the rest comfort level is increased.
The preferable technical scheme is further as follows: as shown in fig. 3 to 5: support positioning adjustment device 5 including scalable regulation length's gas pole 51 and pneumatic control manual brake 52, the upper end and the back frame 3 swing joint of gas pole 51, bottom swing joint behind gas pole 51's the lower extreme and the side foot rest 1, pneumatic control manual brake 52 fixes on the upper portion of back frame 3, pneumatic control manual brake 52 is connected with wire rope 53, and wire rope 53's the other end is connected the bottom valve of gas pole 51.
When the chair is operated, the air pressure adjusting hand brake 52 is firstly grasped/tightened by hands, the steel wire rope 53 is pulled, the bottom valve of the air rod 51 is opened, then the backrest frame 3 is synchronously pressed backwards by hands, the chair seat frame 2 and the backrest frame 3 are inclined backwards to a required angle, then the air pressure adjusting hand brake 52 is loosened, the bottom valve of the air rod 51 automatically resets and closes the seal, no air source enters and exits from the air rod 51, the length of the air rod 51 is fixed, and the inclined angle of the chair seat frame 2 and the backrest frame 3 is fixed.
The purpose of opening the valve of the air rod 51 is to exhaust air, because when the backrest frame 3 is pressed, the air rod 51 can exhaust air to enable the seat frame 2 and the backrest frame 3 to rotate backwards in an inclined way and descend, and the air rod 51 contracts inwards and shortens synchronously.
When the seat frame 2 and the backrest frame 3 need to be reset upwards, the air pressure adjusting hand brake 52 is grasped/tightened by hands, the steel wire rope 53 is pulled, the bottom valve of the air rod 51 is opened, the air rod 51 sucks air, and then the air rod 51 is rebounded and lifted by utilizing a self reset spring to enable the seat frame 2 and the backrest frame 3 to rotate upwards.
The preferable technical scheme is further as follows: the middle part border of seat support position frame 2 and the top middle part of side foot rest 1 all are provided with the screw 2A of symmetry, 2B (screw 2A establishes at the middle part border of seat support position frame 2, screw 2B establishes at the top middle part of side foot rest 1), cross on two screws and be connected with bolt 2C, seat support position frame 2 has been supported to side foot rest 1, seat support position frame 2 passes through the screw, the cooperation of bolt can be for side foot rest 1 hypsokinesis rotatory, form swing joint between the two from this. The screw hole is arranged at the center of a circle between the side foot rest 1 and the seat frame 2.
The preferable technical scheme is further as follows: a rotary positioning device 4 capable of enabling the seat frame 2 and the backrest frame 3 to be adjusted in a synchronous backward tilting mode is arranged between the side foot frame 1 and the seat frame 2, the rotary positioning device 4 comprises at least one arc-shaped positioning groove 401 and at least one nail body 402, the arc-shaped positioning groove 401 is arranged on the side foot frame 1 in a trend of an arc line, the nail body 402 is fixedly connected to the side wall of the seat frame 2, the nail body 402 is connected to the arc-shaped positioning groove 401 in a penetrating mode to be positioned on the arc-shaped positioning groove 401 and can move along with the distance in the arc-shaped positioning groove 401 when the seat frame 2 and the backrest frame 3 are adjusted in a backward tilting mode, the nail body 402 moves to the two ends of the arc-shaped positioning groove 401 to be used for adjusting the backward tilting angle, the seat frame 2 and the backrest frame 3 are adjusted in a backward tilting angle mode through the cooperation of the nail body 402 and the arc-shaped positioning groove 401, the backward tilting angle adjustment positioning and the prevention of the seat frame 2 and the side foot frame 1 are mainly achieved (equivalent to the adjustment with a track, of course, the rotary positioning device 4 can be a track, Flat bearings, etc.). The arc-shaped positioning slot 401 may be a through slot or a blind slot or a guide slot.
The movable connection point between the side foot frame 1 and the seat frame 2 is at the center of a circle, namely the center point of the circle is a connection point, and the movable connection point is used for being matched with the nail body 402 to walk along the arc-shaped positioning groove 401 on an arc line.
The nail body 402 may be a screw or a pin or a rivet or a screw or a bolt or a screw, etc.
The rotary positioning device with the structure can adjust the overall backward inclination of the seat frame and the backrest frame, after the seat frame and the backrest frame are inclined, an included angle between the seat frame and the backrest frame can form a 'pocket' shape, the back of the seat frame is low, the backrest frame is inclined backward, the body of a patient can be tilted backward, the patient is prevented from inclining forward, the patient can sit more stably, the patient is prevented from sliding forward, meanwhile, the back lying rest of the patient is also facilitated, and the rest comfort level is increased.
The preferable technical scheme is further as follows: the backward inclination adjusting angle of the rotary positioning device 4 is 1-60 degrees, preferably 1-45 degrees, and is adjusted according to the actual condition of a consumer, and if the consumer wants to lie down for rest, the backward inclination adjusting angle is adjusted to 45 degrees, which is more suitable.
The preferable technical scheme is further as follows: two arc-shaped positioning grooves 401 are formed; the nail body 402 is two, and two nail bodies 402 insert respectively in two arc constant head tank 401, and such location effect is better, and stability is better.
The preferable technical scheme is further as follows: side foot rest 1 includes curved bar 11 and sheer pole 12, and the both ends of going up curved bar 11 are connected at sheer pole 12 both ends, go up and be fixed with curb plate 13 between curved bar 11 and the sheer pole 12, and curb plate 13 is semi-circular (curb plate 13 is the arc), is equipped with the arc constant head tank 401 of an at least circular arc line trend on the curb plate 13, and this is carried in the structure of rational design side foot rest 1, and the both ends of sheer pole 12 are used for connecting the truckle of wheelchair.
The preferable technical scheme is further as follows: the seat frame 2 comprises an upper cross bar 21 and a lower bent bar 202, and two ends of the upper cross bar 21 are connected to the lower bent bar 202; a vertical rod 203 is fixedly connected between the upper cross rod 21 and the lower bent rod 202; the rear part of the vertical rod 203 and/or the lower bent rod 202 is fixed with a nail body 402. Go up horizontal pole 21, lower bent lever 202, montant 203 and constitute a frame, rationally set up seat support frame 2, the top of seat support frame 2 is used for installing the cushion, makes seat support frame 2 firmly and the cooperation of rational arrangement nail body 402 and arc positioning groove 401.
The preferable technical scheme is further as follows: the lower end of the backrest frame 3 is fixedly connected with the tail end of the lower bent rod 202.
Claims (6)
1. A chair seat back inclination adjusting and positioning device of a wheelchair comprises a side foot frame, a chair seat frame and a backrest frame; the bottom of the backrest frame is fixedly connected with the rear end of the seat frame; the method is characterized in that: the side foot frames are movably connected with the seat position frame, and the seat position frame and the backrest frame can integrally tilt backwards; and a supporting and positioning adjusting device is connected between the rear part of the side foot rest and the backrest frame and is used for fixing the angle of the seat position frame and the backrest frame after the backrest frame tilts backwards.
2. The device for adjusting and positioning the rear tilt of the seat of a wheelchair of claim 1, wherein: the support positioning adjusting device comprises a gas rod and a pneumatic adjusting hand brake, wherein the length of the gas rod can be adjusted in a telescopic mode, the upper end of the gas rod is movably connected with the backrest frame, the lower end of the gas rod is movably connected with the rear bottom of the side foot frame, the pneumatic adjusting hand brake is fixed on the upper portion of the backrest frame, the pneumatic adjusting hand brake is connected with a steel wire rope, and the other end of the steel wire rope is connected with a bottom valve of the gas rod.
3. The device for adjusting and positioning the rear tilt of the seat of a wheelchair of claim 1, wherein: the middle edge of the seat frame and the top middle part of the side foot rest are provided with symmetrical screw holes, the two screw holes are connected with bolts in a transverse mode, the side foot rest supports the seat frame, the seat frame can rotate obliquely relative to the back of the side foot rest through the matching of the screw holes and the bolts, and therefore the movable connection between the seat frame and the side foot rest is formed.
4. The device for adjusting and positioning the rear tilt of the seat of a wheelchair of claim 1, wherein: be provided with the rotational positioning device that can make seat support position frame, the synchronous back slope of back frame adjust between side foot rest and the seat support position frame, rotational positioning device is including setting up arc positioning groove and the at least one nail body of fixed connection at seat support position frame lateral wall of the trend of at least one circular arc line on the side foot rest, nail body cross-under is fixed a position on the arc positioning groove and can follow the seat support position frame, the back frame interval in the arc positioning groove when back slope is adjusted walks about, seat support position frame, back frame pass through the nail body, the cooperation of arc positioning groove realizes back slope angle and adjusts.
5. The device for adjusting and positioning the rear tilt of the seat of a wheelchair of claim 4, wherein: the rear inclination adjusting angle of the rotary positioning device is 1-60 degrees.
6. The device for adjusting and positioning the rear tilt of the seat of a wheelchair of claim 4, wherein: the number of the arc-shaped positioning grooves is two; the nail body is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120121326.5U CN215274002U (en) | 2021-01-15 | 2021-01-15 | Seat position back-inclined adjusting and positioning device of wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120121326.5U CN215274002U (en) | 2021-01-15 | 2021-01-15 | Seat position back-inclined adjusting and positioning device of wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215274002U true CN215274002U (en) | 2021-12-24 |
Family
ID=79529945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120121326.5U Active CN215274002U (en) | 2021-01-15 | 2021-01-15 | Seat position back-inclined adjusting and positioning device of wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215274002U (en) |
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2021
- 2021-01-15 CN CN202120121326.5U patent/CN215274002U/en active Active
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| GR01 | Patent grant | ||
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