CN203885741U - Folding wheelchair seat frame - Google Patents
Folding wheelchair seat frame Download PDFInfo
- Publication number
- CN203885741U CN203885741U CN201420336212.2U CN201420336212U CN203885741U CN 203885741 U CN203885741 U CN 203885741U CN 201420336212 U CN201420336212 U CN 201420336212U CN 203885741 U CN203885741 U CN 203885741U
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- CN
- China
- Prior art keywords
- folding
- stock
- fore
- back support
- support seat
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to the folding technology of wheelchairs, in particular to a folding wheelchair seat frame which can be unfolded automatically. The folding wheelchair seat frame comprises a front support, a rear support and a front-and-rear support base, and is characterized in that the lower half portion of the front support is of a fork structure and stretches across the front-and-rear support base, and a locking device is arranged between the front support and the front-and-rear support base. Meanwhile, the folding wheelchair seat frame comprises a wheelchair frame folding control mechanism comprising a button, a button base, a folding linkage rod, a tripod linkage device, an upper linkage piece, a lower linkage piece, an upper push rod, a lower push rod and a tension spring. The folding wheelchair seat frame not only can be folded but also can be unfolded automatically. Compared with the prior art, the folding wheelchair seat frame has the advantages of being convenient to fold and unfold, small in size after being folded and rapid and flexible in stretching and positioning, labor in saved in the operation process, and users can easily and conveniently put a wheelchair into an automobile trunk.
Description
Technical field
This utility model relates to wheelchair folding, particularly a kind of fully collapsible invalid's chair seat machine frame that can automatically open.
Background technology
Use the user of fully collapsible invalid's chair generally all to wish that wheelchair puts in the boot of car after folding, and can open soon when taking out from automobile, therefore require wheelchair preferably can fold easily and open.Existing fully collapsible invalid's chair, after folding if while re-using, can not be opened automatically, to user, brings very large inconvenience.
Summary of the invention
The purpose of this utility model is the not only collapsible but also fully collapsible invalid's chair frame that can automatically open of a kind of seat machine frame of design.
In order to achieve the above object, this utility model adopts following technical solution: a kind of fully collapsible invalid's chair seat machine frame, comprise fore-stock, after-poppet, front and back support seat, described fore-stock and after-poppet upper end are hinged on seat cushion base, described after-poppet lower end is hinged on described front and back support seat, described front and back support seat is fixed on vehicle frame, it is characterized in that:
(1) Lower Half of described fore-stock is fork configuration, described fork configuration is by a left side, right fork sheet forms, described fork configuration is across on described front and back support seat, between described fore-stock and described front and back support seat, be provided with catch means, described catch means comprises stage clip, alignment pin, slip elongated slot, folding lock-bit groove and stretching, extension lock-bit groove, described slip elongated slot is located at a described left side, on right fork sheet, described stage clip is arranged on the position, cross point of described fork configuration, described stage clip outer end connects described alignment pin, described alignment pin two ends are arranged on a left side, on right described slip elongated slot, described folding lock-bit groove is located on described front and back support seat corresponding while folding with described fore-stock, described stretching, extension lock-bit groove is located on described front and back support seat corresponding while stretching with described fore-stock,
(2) it is also provided with the folding controlling organization of wheelchair frame, the folding controlling organization of described wheelchair frame comprises button, button seat, Foldable linkage bar, tripod clutch, upper linkage piece, lower linkage piece, upper push-rod, lower push-rod and extension spring, described button seat is connected with vehicle frame, described tripod clutch is connected in a described left side, between right fork sheet, described Foldable linkage bar one end connects described button, the described Foldable linkage bar other end connects described tripod clutch the first foot, described tripod clutch crus secunda connects described upper linkage piece one end, the described upper linkage piece other end connects described upper push-rod one end, the described upper push-rod other end withstands on described alignment pin through described stretching, extension lock-bit groove, described tripod clutch tripod connects described upper linkage piece one end, the described lower linkage piece other end connects described lower push-rod one end, the described lower push-rod other end withstands on described alignment pin through described folding lock-bit groove, described extension spring one end is connected in the lower end of described fore-stock, the described extension spring other end is connected on described vehicle frame.
This utility model is for fear of the location conflicts between extension spring and vehicle frame, described technical scheme is further arranged: between described extension spring and described fore-stock lower end, be also provided with chain, described chain one end is connected in the lower end of described fore-stock, and the described chain other end connects described extension spring one end.
When this utility model is opened for seat machine frame stretches, alignment pin finds fast, neatly and stretches lock bit position, described technical scheme is further arranged: described stretching, extension lock-bit groove adopts step notch, by the step outer surface being located on described front and back support seat, is formed.
Accompanying drawing explanation
Fig. 1 is that the present embodiment is applied in the unfolding state figure after wheelchair.
Fig. 2 is that the present embodiment is applied in the state diagram after backward lower the folding of wheelchair.
Fig. 3 is the main structure figure of the present embodiment under open mode.
Fig. 4 be the present embodiment open or folding process in main structure figure.
Fig. 5 is the main structure figure of the present embodiment under folded state.
Fig. 6 is the three-dimensional structure diagram of fore-stock and front and back support seat combination in the present embodiment.
Fig. 7 is Fig. 6 principal section figure.
The specific embodiment
As shown in Figure 3-Figure 5, the present embodiment comprises the folding controlling organization of fore-stock 16, after-poppet 5, front and back support seat 20 and wheelchair frame, wherein:
Described fore-stock 16 and after-poppet 5 upper ends are hinged on seat cushion base 29, and described after-poppet 5 lower ends are hinged on described front and back support seat 20, and described front and back support seat 20 is fixed on vehicle frame 26
As Fig. 6, shown in Fig. 7, the Lower Half of described fore-stock 16 is fork configuration, described fork configuration is by a left side, right fork sheet 40, 41 form, described fork configuration is across on described front and back support seat 20, between described fore-stock 16 and described front and back support seat 20, be provided with catch means, described catch means comprises stage clip 17, alignment pin 18, slip elongated slot 36, folding lock-bit groove 22 and stretching, extension lock-bit groove 21, described slip elongated slot 36 is located at a left side, right fork sheet 40, on 41, described stage clip 17 is arranged on the position, cross point of described fork configuration, described stage clip 17 outer ends connect described alignment pin 18, described alignment pin 18 two ends are arranged on a left side, on right described slip elongated slot 36, described folding lock-bit groove 22 is located on described front and back support seat 20 corresponding while folding with described fore-stock 16 (seeing Fig. 4), described stretching, extension lock-bit groove 21 is located on described front and back support seat 20 corresponding while stretching with described fore-stock 16 (seeing Fig. 4), described stretching, extension lock-bit groove 21 adopts step notch, by the step outer surface being located on described front and back support seat 20, formed, seat machine frame is stretched while opening, alignment pin 18 can be quick, find neatly and stretch lock bit position.
For another example Fig. 3, shown in Fig. 4, the folding controlling organization of described wheelchair frame comprises button 32, button seat 30, Foldable linkage bar 19, tripod clutch 34, upper linkage piece 33, lower linkage piece 35, upper push-rod 28, lower push-rod 27, chain 23 and extension spring 24, described button seat 30 is connected with vehicle frame 26, described tripod clutch 34 is connected in a described left side, right fork sheet 40, between 41, described Foldable linkage bar 19 one end connect described button 32, described Foldable linkage bar 19 other ends connect described tripod clutch 34 first feet, described tripod clutch 34 crus secundas connect described upper linkage piece 33 one end, described upper linkage piece 33 other ends connect described upper push-rod 28 one end, described upper push-rod 28 other ends withstand on described alignment pin 18 through described stretching, extension lock-bit groove 21, described tripod clutch 34 tripods connect described upper linkage piece 35 one end, described lower linkage piece 35 other ends connect described lower push-rod 27 one end, described lower push-rod 27 other ends withstand on described alignment pin 18 through described folding lock-bit groove 22, described chain 23 one end are connected in the lower end of described fore-stock 16, described chain 23 other ends connect described extension spring 24 one end, described extension spring 24 other ends are connected on described vehicle frame 26.Described extension spring 24 is carried out transition with described fore-stock 16 lower ends by chain 23 and is connected, and has solved the location conflicts problem between extension spring and vehicle frame.
When frame is in extended position (shown in Fig. 1, Fig. 3), in the time of need to folding frame, press button 32, by folding connecting rod 19, pull tripod clutch 34 to rotate, in drive, linkage piece 33 outwards promotes with upper push-rod 28, also pull lower linkage piece 35 outwards to move with lower push-rod 27 simultaneously, the pressure that upper push-rod 28 overcomes stage clip 17 ejects the stretching, extension lock-bit groove 21 on front and back support seat 20 alignment pin 18, the lock-bit of releasing to fore-stock 16, now can move up and down to fore-stock 16 and after-poppet 5, realize folding frame.
When frame moves downward folding position (shown in Fig. 2, Fig. 5), while being the correspondence position of the folding lock-bit groove 22 of alignment pin 18 arrival, alignment pin 18 is under the effect of stage clip 17 elastic force, and alignment pin 18, by the folding lock-bit groove 22 of jacking, makes frame in foldable locking state.Meanwhile, under the effect of stage clip 17 elastic force, alignment pin 18 promotes lower push-rod 27 and moves inward, and rotates counterclockwise by lower linkage piece 35 promotion tripod clutch 34, thereby drives button 32 and upper push-rod 28 to reset.
In frame, move downward in folding process, fore-stock 16 clockwise rotates, and fore-stock 16 elongates extension spring 24 by chain 23, makes extension spring 24 in tension state (shown in Fig. 5).Once open seat machine frame, again press button 32, when alignment pin 18 is ejected to folding lock-bit groove 22, now under the effect of extension spring 24 pulling force, seat machine frame is just opened automatically, alignment pin 18 can find and the position of stretching lock-bit groove 21 and aliging fast, neatly, and alignment pin 18 is stretched lock-bit grooves 21 by stage clip 17 jackings again, makes frame in opening lock-out state.
In sum, this utility model compared with prior art, the beneficial effect having:
1, it is convenient to fold, launch.
2, rapid operation, widely wheelchair convenient for users.
3, stretch location fast, flexibly.
4, folding volume is little, brings convenience to the vanning of wheelchair, makes it pack very like a cork automobile trunk into.
Claims (3)
1. a fully collapsible invalid's chair seat machine frame, comprise fore-stock (16), after-poppet (5), front and back support seat (20), described fore-stock (16) and after-poppet (5) upper end are hinged on seat cushion base (29), described after-poppet (5) lower end is hinged on described front and back support seat (20), it is upper that described front and back support seat (20) is fixed on vehicle frame (26), it is characterized in that:
The Lower Half of described fore-stock (16) is fork configuration, described fork configuration is by a left side, right fork sheet (40), (41) form, described fork configuration is across on described front and back support seat (20), between described fore-stock (16) and described front and back support seat (20), be provided with catch means, described catch means comprises stage clip (17), alignment pin (18), slip elongated slot (36), folding lock-bit groove (22) and stretching, extension lock-bit groove (21), described slip elongated slot (36) is located at a described left side, right fork sheet (40), (41) on, described stage clip (17) is arranged on the position, cross point of described fork configuration, described stage clip (17) outer end connects described alignment pin (18), described alignment pin (18) two ends are arranged on a left side, on right described slip elongated slot (36), described folding lock-bit groove (22) is located on described front and back support seat (20) corresponding while folding with described fore-stock (16), described stretching, extension lock-bit groove (21) is located on described front and back support seat (20) corresponding while stretching with described fore-stock (16),
(it is also provided with the folding controlling organization of wheelchair frame, the folding controlling organization of described wheelchair frame comprises button (32), button seat (30), Foldable linkage bar (19), tripod clutch (34), upper linkage piece (33), lower linkage piece (35), upper push-rod (28), lower push-rod (27) and extension spring (24), described button seat (30) is connected with vehicle frame (26), described tripod clutch (34) is connected in a described left side, right fork sheet (40), (41) between, described Foldable linkage bar (19) one end connects described button (32), described Foldable linkage bar (19) other end connects described tripod clutch (34) first feet, described tripod clutch (34) crus secunda connects described upper linkage piece (33) one end, described upper linkage piece (33) other end connects described upper push-rod (28) one end, described upper push-rod (28) other end withstands on described alignment pin (18) through described stretching, extension lock-bit groove (21), described tripod clutch (34) tripods connect described upper linkage piece (35) one end, described lower linkage piece (35) other end connects described lower push-rod (27) one end, described lower push-rod (27) other end withstands on described alignment pin (18) through described folding lock-bit groove (22), described extension spring (24) one end is connected in the lower end of described fore-stock (16), described extension spring (24) other end is connected on described vehicle frame (26).
2. a kind of fully collapsible invalid's chair seat machine frame according to claim 1, it is characterized in that being also provided with chain (23) between described extension spring (24) and described fore-stock (16) lower end, described chain (23) one end is connected in the lower end of described fore-stock (16), and described chain (23) other end connects described extension spring (24) one end.
3. a kind of fully collapsible invalid's chair seat machine frame according to claim 2, is characterized in that described stretching, extension lock-bit groove (21) adopts step notch, is formed by the step outer surface being located on described front and back support seat (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336212.2U CN203885741U (en) | 2014-06-10 | 2014-06-10 | Folding wheelchair seat frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336212.2U CN203885741U (en) | 2014-06-10 | 2014-06-10 | Folding wheelchair seat frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203885741U true CN203885741U (en) | 2014-10-22 |
Family
ID=51712197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420336212.2U Withdrawn - After Issue CN203885741U (en) | 2014-06-10 | 2014-06-10 | Folding wheelchair seat frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203885741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104042417A (en) * | 2014-06-10 | 2014-09-17 | 陈乐章 | Seat rack of folding wheelchair |
-
2014
- 2014-06-10 CN CN201420336212.2U patent/CN203885741U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104042417A (en) * | 2014-06-10 | 2014-09-17 | 陈乐章 | Seat rack of folding wheelchair |
| CN104042417B (en) * | 2014-06-10 | 2016-07-06 | 陈乐章 | A kind of fully collapsible invalid's chair seat machine frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |