CN209808786U - Frame of portable wheelchair - Google Patents
Frame of portable wheelchair Download PDFInfo
- Publication number
- CN209808786U CN209808786U CN201920325093.3U CN201920325093U CN209808786U CN 209808786 U CN209808786 U CN 209808786U CN 201920325093 U CN201920325093 U CN 201920325093U CN 209808786 U CN209808786 U CN 209808786U
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- rod
- frame
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Abstract
The utility model discloses a frame of a portable wheelchair, which comprises a backrest rod, a transition plate, a first connecting rod, a second connecting rod, a front supporting frame, a rear supporting rod, a seat cushion rod and a locking mechanism; the transition plates are symmetrically arranged, the bottoms of the transition plates are fixedly connected through a first connecting rod, the backrest rod is fixedly connected to the top end of the transition plate, and the top end of the front support frame is hinged to the first connecting rod; one end of the seat cushion rod is arranged at the upper part of the transition plate, and the other end of the seat cushion rod extends towards the front supporting frame; the locking mechanism comprises a locking plate, an elastic part and a locking rod, a locking groove is formed in the bottom of one side, close to the front support frame, of the transition plate, the locking rod is detachably connected to the rear support rod, and one end of the locking rod penetrates through the locking groove and extends to the inner side of the transition plate; the lock plate is hinged to the bottom of the inner side of the transition plate, and the front end, close to the front support frame, of the lock plate is provided with a lock hook. The utility model discloses a frame is folding, and whole volume reduces by a wide margin, and folding more thoroughly, conveniently folds and carries.
Description
Technical Field
The utility model relates to a wheelchair car technical field especially relates to a frame of portable wheelchair car.
Background
The wheelchair is an important tool for rehabilitation, not only is the tool for physically disabled and mobility-handicapped people to ride instead of walk, but also is more important for the people to do physical exercises and participate in social activities by means of the wheelchair. And with the continuous improvement of living standard and the improvement of humanistic concern consciousness of the whole society of people, the travel willingness of the people with physical disabilities and mobility disabilities is more and more intense, and along with the development of various demands, the wheelchair slowly becomes a good friend of everyone and is deeply loved by the public.
At present, the wheelchair has stronger and stronger functions and more convenient use, and most wheelchairs are made into foldable wheelchairs as much as possible in order to further improve the portability of the wheelchairs. Most of existing wheelchair frames are hinged to frames on two sides through X-shaped cross rods, and when the existing wheelchair frames are folded, the frames on two sides can be folded by two hands together. However, after the bicycle frame with the structure is folded, only the distance between the two side supporting frames is changed, and the sizes and the positions of the two side supporting frames are not changed. Therefore, the frame of the prior wheelchair is not completely folded, so that the wheelchair is still inconvenient to carry.
Therefore, it is desirable to provide a frame for a portable wheelchair to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frame of portable wheelchair car, convenient folding and carry to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a frame of a portable wheelchair comprises a backrest rod, a transition plate, a first connecting rod, a second connecting rod, a front support frame, a rear support rod, a seat cushion rod and a locking mechanism; the transition plates are symmetrically arranged, the bottoms of the transition plates are fixedly connected through a first connecting rod, the backrest rod is fixedly connected to the top end of the transition plate, and the top end of the front support frame is hinged to the first connecting rod; one end of the seat cushion rod is arranged at the upper part of the transition plate, and the other end of the seat cushion rod extends towards the front supporting frame; the rear support rod is positioned on the outer side of the transition plate, the top end of the rear support rod is hinged with the transition plate, the bottom end of the rear support rod is fixedly connected with a U-shaped frame, and the U-shaped frame is fixedly connected with an installation plate; one end of the second connecting rod is hinged with the upper part of the front support frame, and the other end of the second connecting rod is hinged with the mounting plate; the locking mechanism comprises a locking plate, an elastic part and a locking rod, a locking groove is formed in the bottom of one side, close to the front support frame, of the transition plate, the locking rod is detachably connected to the rear support rod, and one end of the locking rod penetrates through the locking groove and extends to the inner side of the transition plate; the lock plate is hinged to the bottom of the inner side of the transition plate, and the front end of the lock plate close to the front support frame is provided with a lock hook; one end of the elastic piece is fixedly connected with the transition plate, and the other end of the elastic piece is fixedly connected with the rear end of the locking plate; the lock plate rotates under the tension of the elastic piece to enable the lock hook to approach the lock rod and limit the lock rod in the lock groove, and when the lock rod is positioned in the lock groove, an included angle alpha is formed between the front support frame and the rear support frame.
The utility model discloses a further improvement is, the top fixedly connected with sleeve pipe of preceding support frame, the sleeve pipe rotates to be connected in first connecting rod, and the bottom fixedly connected with installation cover of preceding support frame, and fixedly connected with foot die-pin between two installation covers.
The utility model discloses a further improvement is, still include T type pole, the one end of seat filler rod is articulated with crossing the cab apron, and the top of T type pole is articulated with the other end of seat filler rod, and the bottom of T type pole is articulated with preceding support frame when the locking lever is located the locked groove, and T type pole, preceding support frame and seatpad are formed triangle-shaped.
The utility model discloses a further improvement scheme is, still include two deep floor, deep floor's bottom fixed connection at the junction of back bracing piece and U type frame, the top upwards extend bend and with back bracing piece fixed connection.
The utility model discloses a further improvement scheme is, still include the third connecting rod of fixed connection between deep floor, the fourth connecting rod of fixed connection between the back pole to and the fifth connecting rod of fixed connection between the cab apron.
The utility model discloses a further improvement is, locking mechanism still includes two gag lever posts of fixed connection in the jam plate rear end outside, crosses the cab apron and is close to the bottom of this side of back bracing piece and is equipped with the spacing groove, and the gag lever post card is in the spacing groove when the locking lever is kept away from to the latch hook.
The utility model discloses a further improvement scheme is, still include the driving lever of fixed connection between two jam plate rear ends.
The utility model discloses a further improvement scheme is, the numerical range of contained angle alpha is 60-65.
The utility model discloses a further improvement scheme is, the top of back pole is bent and is formed the handle.
The utility model has the advantages that:
when the utility model is used, the rear end of the lock plate is lifted upwards, so that the lock hook leaves the lock rod and is separated from the lock rod, the rear support rod is folded towards the front support frame, the lock rod leaves the lock groove and is attached to the front support frame until the rear support rod is basically parallel to the front support frame; then the backrest rod is pushed to the front support frame to be folded, and because the top end of the transition plate rotates to the front support frame, the seat cushion rod can be pressed down to be attached to the front support rod while the backrest rod is folded, the seat cushion rod only needs to be interfered by the T-shaped rod and the front support frame, and the backrest rod only needs to be basically parallel to the front support rod; the utility model discloses after folding, whole volume reduces by a wide margin, and folding more thoroughly, the convenient folding and carrying.
Two, the utility model discloses a deep floor, third connecting rod and fourth connecting rod's setting for whole frame is more firm stably, the promotion by a wide margin of security performance.
Thirdly, the utility model discloses the setting of spacing pole on the locking mechanism guarantees that the jam plate can not unlimited rotation when carrying the jam plate, has guaranteed locking mechanism's security performance.
Fourthly, the utility model discloses be equipped with the driving lever on the locking mechanism, guarantee to carry two jam plates simultaneously when the frame is folding, it is more convenient to use.
Fifthly, the included angle alpha formed between the front support frame and the rear support rod of the utility model is 60-65 degrees, thereby ensuring the safety and stability of the frame when in use.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a left side view of the present invention.
Fig. 4 is a partially enlarged view of a portion a in fig. 1.
Fig. 5 is a schematic view of the locking mechanism of the present invention.
Fig. 6 is a schematic structural view of the transition plate of the present invention.
Fig. 7 is a schematic view of the lock plate structure of the present invention.
In the figure: 1-backrest rod, 2-transition plate, 3-first connecting rod, 4-second connecting rod, 5-front supporting frame, 6-rear supporting rod, 7-seat cushion rod, 8-U-shaped frame, 9-mounting plate, 10-locking plate, 11-elastic part, 12-locking rod, 13-locking groove, 14-locking hook, 15-mounting sleeve, 16-foot supporting rod, 17-T-shaped rod, 18-reinforcing rib plate, 19-third connecting rod, 20-fourth connecting rod, 21-limiting rod, 22-deflector rod, 23-handle, 24-fifth connecting rod, 25-inner hexagonal countersunk head screw I, 26-inner hexagonal countersunk head screw II, 27-inner hexagonal countersunk head screw III, 28-inner hexagonal countersunk head screw IV and 29-limiting groove.
Detailed Description
The present invention will be further clarified by the following detailed description, which is to be understood as being given only for the purpose of illustration and not for the purpose of limiting the scope of the invention, and modifications of various equivalent forms of the invention which are obvious to those skilled in the art after reading the present invention, all falling within the scope of the appended claims.
Example 1: as shown in fig. 1-7, a frame of a portable wheelchair comprises a backrest rod 1, a transition plate 2, a first connecting rod 3, a second connecting rod 4, a front support frame 5, a rear support rod 6, a seat cushion rod 7 and a locking mechanism; the transition plates 2 are symmetrically arranged, the bottoms of the transition plates are welded and fixed through first connecting rods 3, the backrest rods 1 are welded at the top ends of the transition plates 2, and the top ends of the front support frames 5 are hinged with the first connecting rods 3; one end of the seat cushion rod 7 is arranged at the upper part of the transition plate 2, and the other end extends towards the front support frame 5; the rear support rod 6 is positioned on the outer side of the transition plate 2, the top end of the rear support rod is hinged with the transition plate 2 through a pin shaft, the bottom end of the rear support rod 6 is welded with a U-shaped frame 8, one end of the U-shaped frame 8 is fixedly provided with a mounting plate 9 through a bolt, in the embodiment, the bottom end of the mounting plate 9 is provided with a through hole, the through hole is arranged for mounting a rear driving wheel, the other end of the U-shaped frame 8 can be provided with a motor, an output shaft of the motor can be provided with a gear, and the gear is in meshing transmission with a circle of teeth on the rear driving; one end of the second connecting rod 4 is hinged with the upper part of the front support frame 5, and the other end of the second connecting rod is hinged with the mounting plate 9, in the embodiment, two shaft sleeves are welded at the middle upper part of the support frame, shaft holes are arranged on the mounting plate 9, and two ends of the second connecting rod 4 are respectively hinged with the shaft sleeves and the shaft holes through pin shafts; the locking mechanism comprises a locking plate 10, an elastic part 11 and a locking rod 12, a locking groove 13 is formed in the bottom of one side, close to the front support frame 5, of the transition plate 2, the locking rod 12 is detachably connected to the rear support rod 6, one end of the locking rod 12 penetrates through the locking groove 13 and extends to the inner side of the transition plate 2, in the embodiment, the locking rod 12 is a full-thread screw rod, a threaded hole is formed in the rear support rod 6, the locking rod 12 is in threaded connection with the threaded hole, and locking nuts are further in threaded connection with the locking rods 12 on the inner side and the outer side of the rear support rod 6 to prevent the locking rod 12 from axially moving after long; the lock plate 10 is hinged to the bottom of the inner side of the transition plate 2, the front end, close to the front support frame 5, of the lock plate 10 is provided with a lock hook 14, in the embodiment, the middle of the lock plate 10 is provided with a through hole, the lock plate 10 is installed on the inner side of the transition plate 2 through an inner hexagonal countersunk head screw I25, the inner diameter of the through hole is slightly larger than the outer diameter of the inner hexagonal countersunk head screw I25, and the lock plate 10 can freely rotate along the inner hexagonal countersunk head screw I25; in the embodiment, the elastic member 11 is a spring, an inner hexagonal countersunk head screw ii 26 is fixed at the bottom of the inner side of the transition plate 2, an inner hexagonal countersunk head screw iii 27 is mounted at the rear end of the locking plate 10, and two ends of the spring hook the inner hexagonal countersunk head screw ii 26 and the inner hexagonal countersunk head screw iii 27 respectively; the lock plate 10 is rotated by the tension of the elastic member 11 to make the lock hook 14 approach the lock rod 12 and limit the lock rod 12 in the lock groove 13, and when the lock rod 12 is located in the lock groove 13, an included angle α is formed between the front support frame 5 and the rear support frame 6.
The top welding of preceding support frame 5 has the sleeve pipe, and the sleeve pipe rotates to be connected in first connecting rod 3, and the bottom welding of preceding support frame 5 has the installation cover 15 that is used for installing the front wheel, and the welding has foot die-pin 16 between two installation covers 15.
Still include T type pole 17, the one end of seatpad pole 7 is articulated through round pin axle and cab apron 2, the top of T type pole 17 is articulated with the other end of seatpad pole 7, the bottom of T type pole 17 is articulated with preceding support frame 5 when locking lever 12 is located the locked groove 13, in this embodiment, the welding of middle part bottom of seatpad pole 7 has two otic placodes, the bottom of T type pole 17 is the axle sleeve, the top of T type pole 17 is articulated through round pin axle and otic placode, the bottom of T type pole 17 is articulated through axle sleeve and the major axis of welding at preceding support frame 5 middle part, T type pole 17, preceding support frame 5 and seatpad pole 7 form triangle-shaped.
The numerical range of the included angle alpha is 60-65 degrees; the top end of the backrest rod 1 is bent to form a handle 23.
The specific working principle of the embodiment is as follows: when the frame is folded, the rear end of the lock plate 10 is lifted upwards, so that the lock hook 14 leaves the lock rod 12 and is separated from the lock rod 12, then the rear support rod 6 is folded towards the front support frame 5, and the lock rod 12 leaves the lock groove 13 and is attached to the front support frame 5 until the rear support rod 6 is basically parallel to the front support frame 5; then the backrest rod 1 is pushed to the front support frame 5 to be folded, because the top end of the transition plate 2 rotates towards the front support frame 5, the seat cushion rod 7 can be pressed down to enable the seat cushion rod 7 to be attached to the front support rod while the backrest rod 1 is folded, the seat cushion rod 7 only needs to be pressed until the T-shaped rod 17 interferes with the front support frame 5, and the backrest rod 1 only needs to be basically parallel to the front support rod and the lock plate 10 is loosened.
When the frame is unfolded, the rear end of the lock plate 10 is lifted upwards, the back support rod 1 is firstly opened, the back support rod 1 is reversely far away from the front support frame 5, and meanwhile, the seat cushion rod 7 is reversely far away from the front support frame 5 under the pulling of the seat cushion rod 7 until the back support rod 1 can not rotate; the rear support bar 6 is then opened, the locking bar 12 enters the locking slot 13, the locking plate 10 is released, the locking hook 14 approaches the locking bar 12 and restrains the locking bar 12 in the locking slot 13.
Example 2: the embodiment is different from the embodiment 1 in that although the embodiment 1 has a greatly reduced overall volume after being folded, is more thorough to fold and convenient to fold and carry, the structure is not stable enough, and the overall mechanism is not stable enough when the body of a user is borne; in the present embodiment, the above-mentioned defects can be avoided, specifically:
the rear support rod 6 is connected with the U-shaped frame 8 through a U-shaped support rod, and the U-shaped frame is characterized by further comprising two reinforcing rib plates 18, wherein the bottom ends of the reinforcing rib plates 18 are welded at the joint of the rear support rod 6 and the U-shaped frame 8, and the top ends of the reinforcing rib plates 18 extend upwards and are bent and welded and fixed with the; the backrest comprises a backrest rod 1, a third connecting rod 19, a fourth connecting rod 20 and a fifth connecting rod 24, wherein the third connecting rod 19 is welded between reinforcing rib plates 18; in this embodiment, the reinforcing rib plate 18, the third connecting rod 19, the fourth connecting rod 20 and the fifth connecting rod 24 are arranged, so that the whole frame is more stable and firm, and the safety performance is greatly improved.
Otherwise, this embodiment is identical to embodiment 1, and will not be described herein.
Example 3: the embodiment is a further improvement of embodiment 2, and the main improvement is that when the locking mechanism of embodiment 2 is in use, the locking plate 10 can rotate without limit, and the hand of a user is easily injured by clamping; in the present embodiment, the above-mentioned defects can be avoided, specifically:
the locking mechanism further comprises two limiting rods 21 fixedly connected to the outer side of the rear end of the locking plate 10, limiting grooves 29 are formed in the bottoms of the transition plates 2 close to the rear supporting rods 6, and the limiting rods 21 are clamped in the limiting grooves 29 when the locking hooks 14 are far away from the locking rod 12, wherein in the embodiment, the limiting rods 21 are two hexagon socket countersunk head screws IV 28 screwed on the outer side of the rear end of the locking plate 10; when the locking plate 10 is lifted, the locking plate 10 cannot rotate without limit, the locking plate 10 is prevented from clamping hands, and the safety performance of the locking mechanism is ensured.
Otherwise, this embodiment is identical to embodiment 2, and will not be described herein.
Example 4: the embodiment is a further improvement of the embodiment 3, and the main improvement is that in the embodiment 3, two hands are required to simultaneously lift two lock plates 10, which is quite inconvenient in use; in the present embodiment, the above-mentioned defects can be avoided, specifically:
the lock also comprises a deflector rod 22 fixedly connected between the rear ends of the two locking plates 10; when the bicycle frame is folded, one hand can simultaneously lift the two locking plates 10, so that the bicycle frame is convenient to use.
Otherwise, this embodiment is identical to embodiment 3, and will not be described herein.
Claims (9)
1. The utility model provides a frame of portable wheelchair car which characterized in that: comprises a backrest rod (1), a transition plate (2), a first connecting rod (3), a second connecting rod (4), a front support frame (5), a rear support rod (6), a seat cushion rod (7) and a locking mechanism; the transition plates (2) are symmetrically arranged, the bottoms of the transition plates are fixedly connected through first connecting rods (3), the backrest rods (1) are fixedly connected to the top ends of the transition plates (2), and the top ends of the front support frames (5) are hinged to the first connecting rods (3); one end of the seat cushion rod (7) is arranged at the upper part of the transition plate (2), and the other end extends towards the front support frame (5); the rear supporting rod (6) is positioned on the outer side of the transition plate (2), the top end of the rear supporting rod is hinged with the transition plate (2), the bottom end of the rear supporting rod (6) is fixedly connected with a U-shaped frame (8), and the U-shaped frame (8) is fixedly connected with a mounting plate (9); one end of the second connecting rod (4) is hinged with the upper part of the front support frame (5), and the other end of the second connecting rod is hinged with the mounting plate (9); the locking mechanism comprises a locking plate (10), an elastic piece (11) and a locking rod (12), a locking groove (13) is formed in the bottom of one side, close to the front support frame (5), of the transition plate (2), the locking rod (12) is detachably connected to the rear support rod (6), and one end of the locking rod (12) penetrates through the locking groove (13) and extends to the inner side of the transition plate (2); the lock plate (10) is hinged to the bottom of the inner side of the transition plate (2), and the front end, close to the front support frame (5), of the lock plate (10) is provided with a lock hook (14); one end of the elastic piece (11) is fixedly connected with the transition plate (2), and the other end of the elastic piece is fixedly connected with the rear end of the locking plate (10); the lock plate (10) rotates under the tension of the elastic piece (11) so that the lock hook (14) approaches the lock rod (12) and limits the lock rod (12) in the lock groove (13), and when the lock rod (12) is located in the lock groove (13), an included angle alpha is formed between the front support frame (5) and the rear support frame (6).
2. The frame of a portable wheelchair as recited in claim 1, wherein: the top end of the front support frame (5) is fixedly connected with a sleeve, the sleeve is rotatably connected to the first connecting rod (3), the bottom end of the front support frame (5) is fixedly connected with an installation sleeve (15), and a foot supporting rod (16) is fixedly connected between the two installation sleeves (15).
3. The frame of a portable wheelchair as claimed in claim 2, wherein: the novel seat cushion is characterized by further comprising a T-shaped rod (17), one end of the seat cushion rod (7) is hinged to the transition plate (2), the top end of the T-shaped rod (17) is hinged to the other end of the seat cushion rod (7), the bottom end of the T-shaped rod (17) is hinged to the front support frame (5) when the lock rod (12) is located in the lock groove (13), and the T-shaped rod (17), the front support frame (5) and the seat cushion rod (7) form a triangle.
4. A frame for a portable wheelchair as claimed in claim 3, wherein: the support frame is characterized by further comprising two reinforcing rib plates (18), wherein the bottom ends of the reinforcing rib plates (18) are fixedly connected to the joint of the rear support rod (6) and the U-shaped frame (8), and the top ends of the reinforcing rib plates (18) extend upwards and are bent and fixedly connected with the rear support rod (6).
5. The frame of a portable wheelchair as claimed in claim 4, wherein: the backrest comprises backrest rods (1) and is characterized by further comprising a third connecting rod (19) fixedly connected among the reinforcing rib plates (18), a fourth connecting rod (20) fixedly connected among the backrest rods (1), and a fifth connecting rod (24) fixedly connected among the transition plates (2).
6. The frame of a portable wheelchair as recited in claim 5, wherein: the locking mechanism further comprises two limiting rods (21) fixedly connected to the outer side of the rear end of the locking plate (10), limiting grooves (29) are formed in the bottom of the transition plate (2) close to the rear supporting rod (6), and the limiting rods (21) are clamped in the limiting grooves (29) when the locking hooks (14) are far away from the locking rod (12).
7. The frame of a portable wheelchair as claimed in claim 6, wherein: and the lock also comprises a deflector rod (22) fixedly connected between the rear ends of the two lock plates (10).
8. The frame of a portable wheelchair as recited in claim 1, wherein: the value of the included angle alpha ranges from 60 degrees to 65 degrees.
9. The frame of a portable wheelchair as recited in claim 1, wherein: the top end of the backrest rod (1) is bent to form a handle (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920325093.3U CN209808786U (en) | 2019-03-14 | 2019-03-14 | Frame of portable wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920325093.3U CN209808786U (en) | 2019-03-14 | 2019-03-14 | Frame of portable wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209808786U true CN209808786U (en) | 2019-12-20 |
Family
ID=68875579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920325093.3U Active CN209808786U (en) | 2019-03-14 | 2019-03-14 | Frame of portable wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209808786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115350011A (en) * | 2022-09-09 | 2022-11-18 | 上海邦邦机器人有限公司 | Folding wheelchair |
-
2019
- 2019-03-14 CN CN201920325093.3U patent/CN209808786U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115350011A (en) * | 2022-09-09 | 2022-11-18 | 上海邦邦机器人有限公司 | Folding wheelchair |
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