CN211512372U

CN211512372U - Folding wheelchair support

Info

Publication number: CN211512372U
Application number: CN201921826745.8U
Authority: CN
Inventors: 张钊
Original assignee: Dongguan Prestige Sporting Products Co Ltd
Current assignee: Guangdong Qunwang Technology Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-09-18
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a folding wheelchair bracket, which comprises a first supporting rod, a second supporting rod, a third supporting rod, a bottom rod, a connecting rod, a seat body, a first connecting piece and a locking mechanism; one end of the first supporting rod is sleeved in the second supporting rod in a sliding manner; the first connecting piece is fixed on the second supporting rod; the second supporting rod and the seat body can rotate relatively, and one end of the first connecting piece is pivoted with the third supporting rod; the bottom rod is respectively pivoted with the other end of the first supporting rod and the other end of the third supporting rod; one end of the connecting rod is pivoted with the base body, and the other end of the connecting rod is pivoted with the third supporting rod; the locking mechanism is arranged on the seat body and can lock or unlock the first supporting rod and the second supporting rod with each other. The utility model has the advantages of simple and convenient folding, small volume after folding, convenient carrying and storage and low cost.

Description

Folding wheelchair support

Technical Field

The utility model relates to a folding wheelchair support especially relates to a folding wheelchair support that folds up simple and convenient, after folding up small, carry and deposit convenience, with low costs.

Background

The existing wheelchairs are generally in a non-foldable form, have larger volume, occupy larger storage space when not in use, and are inconvenient to carry and store. Therefore, the volume of the portable electronic device is reduced by adopting a folding mode, so that the portable electronic device is convenient to store and carry. However, there are two folding methods for the existing folding wheelchair, one is manual folding, and the other is automatic folding. The manual folding has more folding actions and inconvenient operation, and for some people with inconvenient actions or older ages, great effort needs to be consumed; although the automatic folding is convenient to operate, the folding structure is complex, the cost is high, the price is high, and the economic pressure is great for the disabled.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a folding wheelchair support which is simple and convenient to fold, small in size after being folded, convenient to carry and store and low in cost.

In order to achieve the above purpose, the utility model provides a folding wheelchair support, which comprises a first support rod, a second support rod, a third support rod, a bottom rod, a connecting rod, a seat body, a first connecting piece and a locking mechanism; one end of the first supporting rod is sleeved in the second supporting rod in a sliding manner; the first connecting piece is fixed on the second supporting rod; the second supporting rod and the seat body can rotate relatively, and one end of the first connecting piece is pivoted with the third supporting rod; the bottom rod is respectively pivoted with the other end of the first supporting rod and the other end of the third supporting rod; one end of the connecting rod is pivoted with the base body, and the other end of the connecting rod is pivoted with the third supporting rod; the locking mechanism is arranged on the seat body and can lock or unlock the first supporting rod and the second supporting rod with each other.

Compared with the prior art, because the utility model discloses a will first connecting piece is fixed in the second bracing piece will the one end of first connecting piece with the pin joint of third bracing piece will the sill bar respectively with the other end of first bracing piece reaches the other end pin joint of third bracing piece will again the one end of first bracing piece cup joints with sliding in the second bracing piece, thereby can make form the polygon that a flexible was folded up between first bracing piece, second bracing piece, third bracing piece and the sill bar. Meanwhile, the base body rotates relative to the second support rod, so that the connecting rod is respectively pivoted with the base body and the third support rod, and then another deformable and foldable polygon is formed among the base body, the connecting piece, the third support rod and the connecting rod, thereby realizing the purpose of unfolding or folding the foldable wheelchair support. The user can fold the foldable bicycle by controlling the second supporting rod to slide and contract relative to the first supporting rod after unlocking, and the folding is simple and convenient; and the folded folding wheelchair bracket is flattened downwards, so that the size of the folding wheelchair bracket is greatly reduced, the occupied space is small, and the folding wheelchair bracket is very convenient to carry and store. In addition, due to the fact that the locking mechanism is arranged, the first supporting rod and the second supporting rod are manually locked or unlocked through the locking mechanism, compared with the traditional folding wheelchair which is automatically folded and unfolded through the electric push rod, the folding wheelchair avoids the adoption of electric push rods and other parts with higher cost, greatly reduces the cost, and is beneficial to wide use.

Preferably, the seat body is provided with a mounting seat, and the rotating shaft is arranged on the mounting seat and connected with the first connecting piece, so that the seat body and the second supporting rod can rotate relatively.

Specifically, the rotating shaft is a hollow tubular structure and the locking mechanism is arranged in the rotating shaft. Therefore, the structure of the whole picture can be more concise and attractive, the locking mechanism can be protected, and the locking or unlocking function of the locking mechanism is prevented from being influenced by the dead locking of foreign objects.

Preferably, the locking mechanism includes a locking pin, the first support rod and the second support rod are both provided with first locking holes, and when the first support rod and the second support rod extend and are locked, the locking pin is inserted into the two first locking holes.

Specifically, the locking mechanism further includes an elastic member having an elastic force to insert the locking pin into the first locking hole. The elastic element can ensure that the folding wheelchair support can automatically keep a locking state when in an unfolding state, thereby preventing accidental folding and improving the use safety.

Specifically, the locking mechanism further comprises a positioning seat, the locking pin is sleeved on the positioning seat in a sliding manner, the elastic element is sleeved between the positioning seat and the locking pin, and two ends of the elastic element respectively abut against the positioning seat and a flange at the front end of the locking pin. The positioning seat can guide the sliding of the locking pin and can also position the elastic element, so that the locking mechanism runs more stably and reliably.

Specifically, the locking mechanism further comprises a flexible operating member, one end of the flexible operating member is connected to the locking pin, and the other end of the flexible operating member extends outwards. The flexible operation piece is arranged, so that the folding wheelchair support can be unlocked more conveniently and quickly before being folded.

Preferably, the foldable wheelchair support further comprises a linkage piece and a handrail, one end of the linkage piece is pivoted to the rear end of the seat body, the other end of the linkage piece is pivoted to one end of the handrail, and the other end of the handrail is slidably arranged on the second support rod. Through the arrangement of the linkage piece and the grab rail, the linkage piece can be linked along with the mutual folding of the first support rod, the second support rod and the third support rod, and then linked with the seat body and the grab rail, so that the purpose of synchronously and automatically folding the grab rail is achieved, and the folding convenience is improved.

Specifically, folding wheelchair support still includes the second connecting piece, the second connecting piece include first adapter sleeve and with the second adapter sleeve of first adapter sleeve pin joint, first adapter sleeve with the second bracing piece cup joints fixedly, the second adapter sleeve with the handrail pole cup joints with sliding relatively.

Specifically, the folding wheelchair support further comprises a backrest, one end of the backrest is pivoted to the upper end of the second support rod, and when the backrest is unfolded, the other end of the backrest abuts against the linkage piece.

Preferably, the folding wheelchair support further comprises rollers, and the rollers are respectively arranged at the lower ends of the first support rod and the third support rod. The arrangement of the idler wheels can enable the folding wheelchair support to form a wheelchair, so that the wheelchair is convenient for disabled people to use.

Preferably, the folding wheelchair support further comprises a foot rest, and the foot rest is arranged at the lower end of the first support rod in a turnover mode. Will the footrest spare is to set up with overturning, can be when using convenient to use user to hold the foot, improves the travelling comfort of using, can fold up when not using again, reduces the volume that occupies, conveniently carries.

Specifically, the first support rod is provided with a second locking hole, and when the first support rod and the second support rod are folded, the locking pin is inserted into the first locking hole of the second support rod and the second locking hole of the first support rod, so as to lock the folding wheelchair support in a folded state. Therefore, the folding seat can be prevented from being opened accidentally when being carried or not used, and the safety is improved.

Drawings

Fig. 1 is a perspective view of the folding wheelchair of the present invention when unfolded.

Figure 2 is another perspective view of the folding wheelchair of the present invention when unfolded.

Figure 3 is a side view of the folding wheelchair of the present invention when unfolded.

Fig. 4 is an enlarged view of a portion a in fig. 1.

Figure 5 is an exploded view of the locking mechanism of the folding wheelchair of the present invention.

Fig. 6 is a state diagram of the action of each rod when the folding wheelchair of the present invention is folded.

Fig. 7 is a state view of the folding wheelchair of the present invention after being folded.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1 to 3, the folding wheelchair frame 100 of the present invention is applied to a folding wheelchair, and includes a first support rod 1, a second support rod 2, a third support rod 3, a bottom rod 4, a connecting rod 5, a seat body 6, a first connecting member 7 and a locking mechanism 8; the first support rod 1, the second support rod 2, the third support rod 3, the bottom rod 4, the connecting rod 5, the first connecting piece 7 and the locking mechanism 8 are respectively arranged on the left side and the right side of the folding wheelchair support 100. One end of the first supporting rod 1 is sleeved in the second supporting rod 2 in a sliding manner; the first support rod 1 is obliquely arranged to form a front foot of the folding wheelchair frame 100, and the second support rod 2 forms a back support of the folding wheelchair frame 100. The first connecting piece 7 is fixed at the lower end of the second supporting rod 2; the second support bar 2 and the base 6 can rotate relatively. One end of the first connecting piece 7 is pivoted with the third supporting rod 3 to form a pivoting point a; the third support bar 3 forms the rear foot of the folding wheelchair frame 100. One end of the bottom rod 4 is pivotally connected to the third connecting member 170 fixed to the other end of the first support rod 1 through an elbow to form a pivot point b, and the other end of the bottom rod 4 is pivotally connected to the other end of the third support rod 3 through another elbow to form a pivot point c, so that the bottom rod 4 is located outside the first support rod 1 and the second support rod 2. One end of the connecting rod 5 is pivoted to the rear end of the base 6 to form a pivot point d, and the other end is pivoted to the third supporting rod 3 to form a pivot point e. The locking mechanism 8 is disposed on the base 6 and can lock or unlock the first support rod 1 and the second support rod 2 with each other.

Specifically, referring to fig. 4 and 5, the foldable wheelchair support 100 further includes a rotating shaft 9, a mounting seat 61 is fixedly disposed at a lower side of the seat body 6, the rotating shaft 9 is horizontally and transversely disposed and rotatably disposed on the mounting seat 61, and two rotating ends are respectively and fixedly connected to the first connecting members 7 at two sides, so that the seat body 6 and the second support rod 2 can rotate relatively. The rotating shaft 9 is a hollow tubular structure, and the locking mechanism 8 is arranged inside the rotating shaft 9. Therefore, the structure of the whole picture can be more concise and attractive, the locking mechanism 8 can be protected, and the locking or unlocking function of the locking mechanism 8 is prevented from being influenced by the dead locking of foreign objects. The first connector 7 has a cylindrical sleeve portion 71 and a pivot portion 72, and the extension directions of the sleeve portion 71 and the pivot portion 72 are perpendicular to each other. The engaging portion 71 is engaged with and fixed to an end of the rotating shaft 9. The third support bar 3 is pivotally connected to the pivotal connection portion 72, and a central axis of the pivotal connection is parallel to a central axis of the sleeve connection portion 71.

Referring to fig. 4 and 5, the locking mechanism 8 includes a locking pin 81, an elastic element 82 and a positioning seat 83, and the elastic element 82 is a compression spring. The positioning seat 83 is fixed in the rotating shaft 9. The locking pin 81 is slidably fitted to the positioning seat 83, and a central axis of the locking pin 81 coincides with a central axis of the fitting portion 71 of the first connecting member 7. The first support rod 1 and the second support rod 2 are both provided with first locking holes 1a and 2a, and when the first support rod 1 and the second support rod 2 are mutually extended and locked, the locking pin 81 passes through the sleeving part 71 of the first connecting piece 7 and is inserted into the two first locking holes 1a and 2 a. The elastic member 82 has an elastic force to insert the locking pin 81 into the first locking holes 1a, 2 a. The elastic element 82 is sleeved between the positioning seat 83 and the locking pin 81, and two ends of the elastic element respectively abut against the positioning seat 83 and a flange 81a at the front end of the locking pin 81. The elastic element 82 can ensure that the folding wheelchair frame 100 can automatically keep a locking state when in an unfolding state, thereby preventing accidental folding and improving the use safety. The positioning seat 83 is arranged to guide the sliding of the locking pin 81 and also to position the elastic element 82, so that the operation of the locking mechanism 8 is more stable and reliable.

As shown in fig. 3 and 4, the locking mechanism 8 further includes a flexible operation member 84, and the flexible operation member 84 is a pull cord or a steel cord. The flexible operating member 84 is connected to the locking pin 81 at one end and extends outwardly at the other end to fold the back of the wheelchair frame 100 or other easily accessible location. The flexible operation member 84 is arranged to make the folding wheelchair frame 100 more convenient and faster to unlock before folding. In addition, the other ends of the two flexible operation parts 84 of the locking mechanism 8 on both sides of the folding wheelchair support 100 are controlled to extend and be arranged together, so that the locking mechanism 8 can be simultaneously unlocked by one-hand operation, and the use is simpler and more convenient.

Referring to fig. 1 and 2, the foldable wheelchair frame 100 further includes a link 10, a handrail 110 and a backrest 120, wherein one end of the link 10 is pivotally connected to the rear end of the seat 6 to form a pivot point f, and the other end is pivotally connected to one end of the handrail 110 to form a pivot point g. The other end of the grab rail 110 intersects with the second support rod 2 and slides relative to the second support rod 2. The grab rail 110 is of a U-shaped structure, two ends of the grab rail respectively extend to the left side and the right side of the folding wheelchair support 100 to form a grab rail, and the middle section of the rear part of the grab rail 110 is connected with the linkage 10; the linkage 10 is of a V-shaped structure, two ends of the upper part of the linkage are connected with the rear part of the grab bar 110, and one end of the lower part of the linkage is pivoted with the rear end of the seat body 6. By arranging the linkage member 10 and the grab rail 110, the linkage member 10 can be linked along with the mutual folding of the first support rod 1, the second support rod 2 and the third support rod 3, and then linked with the seat body 6 and the grab rail 110, so that the purpose of synchronously and automatically folding the grab rail 110 is achieved, and the folding convenience is improved. One end of the backrest 120 is pivotally connected to the upper end of the second support rod 2, and when the backrest is unfolded, the other end of the backrest 120 abuts against the linkage 10.

Referring to fig. 2 and 3, the foldable wheelchair support 100 further includes a second connecting member 130, and the grab bar 110 slides relative to the second support bar 2 through the second connecting member 130. The second connecting member 130 includes a first connecting sleeve 131 and a second connecting sleeve 132 pivotally connected to the first connecting sleeve 131, the first connecting sleeve 131 is fixedly connected to the second supporting rod 2, and the second connecting sleeve 132 is slidably connected to the grab rail 110.

Referring to fig. 2 and 3 again, the foldable wheelchair frame 100 further includes a roller 140 and a footrest 150, wherein the roller 140 is respectively disposed at the lower ends of the first support rod 1 and the third support rod 3; wherein the roller 140 of the third support bar 3 is driven by a motor 160. The footrest member 150 is rotatably disposed at the lower end of the first support rod 1. The footrest piece 150 is arranged in a turnover manner, so that a user can conveniently put feet when the footrest piece is used, the use comfort is improved, the footrest piece can be folded when not used, the occupied volume is reduced, and the footrest piece is convenient to carry.

The first support rod 1 is provided with a second locking hole 1b, and when the first support rod 1 and the second support rod 2 are folded, the locking pin 81 is inserted into the first locking hole 2a of the second support rod and the second locking hole 1b of the first support rod, so as to lock the foldable wheelchair support 100 in the folded state. Therefore, the folding seat can be prevented from being opened accidentally when being carried or not used, and the safety is improved.

With the above and with reference to fig. 6 and 7, the folding process of the foldable wheelchair of the present invention will be described in detail as follows:

when folding, the flexible operation member 84 is manually pulled to make the locking pin 81 exit from the first locking holes 1a and 2a, and at this time, the first support rod 1 and the second support rod 2 can slide with each other. Then, the second support rod 2 is manually driven to slide along the direction of the first support rod 1, so that the first support rod 1 retracts into the second support rod 2. At this time, the third support rod 3 swings counterclockwise and the first support rod 1 and the second support rod 2 swing clockwise and downward, so that the seat body 6 descends toward the bottom rod 4. Meanwhile, the quadrangle formed by the second support bar 2, the grab bar 110, the connecting bar 5 and the seat body 6 is deformed and folded, and is drawn toward the bottom bar 4. Until finally, when the first support rod 1 is completely retracted into the second support rod 2, the seat body 6, the armrests, the connecting rods 5 and the backrest 120 are completely close to the bottom rod 4, so that the folding wheelchair is flattened and folded; and the locking pin 81 is inserted into the second locking hole 1b of the first support bar 1 and the second locking hole 1b of the second support bar 2 overlapped with each other by the elastic force of the elastic member 82, thereby locking the folded state of the entire folding wheelchair. Finally, the footrest member 150 is driven to be turned upwards to close to the first support rod 1, so that the foldable wheelchair can be completely folded. When the wheelchair is unfolded, the above operations are reversed, and the rod members are unfolded and finally inserted into the first locking hole of the first support rod 1 and the first locking holes 1a and 2a of the first support rod 1 overlapped with each other through the locking pin 81, so that the unfolded state of the whole foldable wheelchair is locked.

Compared with the prior art, because the utility model discloses a will first connecting piece 7 is fixed in second bracing piece 2, will the one end of first connecting piece 7 with the pin joint of third bracing piece 3 will bottom bar 4 respectively with the other end of first bracing piece 1 reaches the other end pin joint of third bracing piece 3 will again the one end of first bracing piece 1 cup joint with sliding in second bracing piece 2 to can make form the polygon that a flexible was folded up between first bracing piece 1, second bracing piece 2, third bracing piece 3 and the bottom bar 4. Meanwhile, the seat body 6 is rotated relative to the second support rod 2, so that the connecting rod 5 is respectively pivoted with the seat body 6 and the third support rod 3, and then another deformable and foldable polygon is formed among the seat body 6, the connecting piece, the third support rod 3 and the connecting rod 5, thereby realizing the purpose of unfolding or folding the foldable wheelchair support 100. The user only needs to control the second support rod 2 to slide and contract relative to the first support rod 1 after unlocking, and folding can be achieved, and folding is simple and convenient; and the folded folding wheelchair support 100 is flattened downwards, so that the size of the folding wheelchair is greatly reduced, the occupied space is small, and the folding wheelchair is convenient to carry and store. In addition, due to the fact that the locking mechanism 8 is arranged, the first supporting rod 1 and the second supporting rod 2 are manually locked or unlocked through the locking mechanism 8, compared with the traditional folding wheelchair which is automatically folded and unfolded through the electric push rod, the folding wheelchair avoids the adoption of electric push rods and other parts with high cost, greatly reduces the cost, and is beneficial to wide application.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims

1. A folding wheelchair support is characterized in that: comprises a first supporting rod, a second supporting rod, a third supporting rod, a bottom rod, a connecting rod, a seat body, a first connecting piece and a locking mechanism; one end of the first supporting rod is sleeved in the second supporting rod in a sliding manner; the first connecting piece is fixed on the second supporting rod; the second supporting rod and the seat body can rotate relatively, and one end of the first connecting piece is pivoted with the third supporting rod; the bottom rod is respectively pivoted with the other end of the first supporting rod and the other end of the third supporting rod; one end of the connecting rod is pivoted with the base body, and the other end of the connecting rod is pivoted with the third supporting rod; the locking mechanism is arranged on the seat body and can lock or unlock the first supporting rod and the second supporting rod with each other.

2. A folding wheelchair frame as claimed in claim 1, wherein: the base body is provided with a mounting seat, and the rotating shaft is arranged on the mounting seat and connected with the first connecting piece so that the base body and the second supporting rod can rotate relatively.

3. A folding wheelchair frame as claimed in claim 2, in which: the rotating shaft is of a hollow tubular structure, and the locking mechanism is arranged in the rotating shaft.

4. A folding wheelchair frame as claimed in any one of claims 1 to 3 in which: the locking mechanism comprises a locking pin, the first support rod and the second support rod are both provided with first locking holes, and when the first support rod and the second support rod are mutually extended and locked, the locking pin is inserted into the two first locking holes.

5. A folding wheelchair frame as claimed in claim 4, in which: the locking mechanism further includes an elastic member having an elastic force to insert the locking pin into the first locking hole.

6. A folding wheelchair frame as claimed in claim 5, in which: the locking mechanism further comprises a positioning seat, the locking pin is sleeved on the positioning seat in a sliding mode, the elastic element is sleeved between the positioning seat and the locking pin, and two ends of the elastic element respectively abut against the positioning seat and a flange at the front end of the locking pin.

7. A folding wheelchair frame as claimed in claim 5, in which: the locking mechanism further comprises a flexible operating piece, one end of the flexible operating piece is connected to the locking pin, and the other end of the flexible operating piece extends outwards.

8. A folding wheelchair frame as claimed in claim 1, wherein: the folding wheelchair support further comprises a linkage piece and a handrail rod, one end of the linkage piece is pivoted to the rear end of the seat body, the other end of the linkage piece is pivoted with one end of the handrail rod, and the other end of the handrail rod is slidably arranged on the second supporting rod.

9. A folding wheelchair frame as claimed in claim 8, in which: the folding wheelchair support further comprises a second connecting piece, the second connecting piece comprises a first connecting sleeve and a second connecting sleeve pivoted with the first connecting sleeve, the first connecting sleeve is fixedly connected with the second supporting rod in a sleeved mode, and the second connecting sleeve is connected with the grab rail in a sleeved mode in a sliding mode.

10. A folding wheelchair frame as claimed in claim 9, in which: the foldable wheelchair support further comprises a backrest, one end of the backrest is pivoted to the upper end of the second support rod, and when the backrest is unfolded, the other end of the backrest abuts against the linkage piece.

11. A folding wheelchair frame as claimed in claim 1, wherein: the folding wheelchair support further comprises idler wheels, and the idler wheels are respectively arranged at the lower ends of the first supporting rod and the third supporting rod.

12. A folding wheelchair frame as claimed in claim 1, wherein: the folding wheelchair support further comprises a foot rest piece, and the foot rest piece is arranged at the lower end of the first supporting rod in a turnover mode.

13. A folding wheelchair frame as claimed in claim 4, in which: the first support rod is provided with a second locking hole, and when the first support rod and the second support rod are folded, the locking pin is inserted into the first locking hole of the second support rod and the second locking hole of the first support rod, so that the folding wheelchair support is locked in a folded state.