Foldable electric wheelchair

Abstract

The utility model discloses a foldable electric wheelchair, and relates to the technical field of electric wheelchairs. The foldable electric wheelchair comprises a base, and an electric folding chair is mounted above the base; one end of the telescopic cover assembly is rotationally connected to the end, away from the electric folding chair, of the base through a shaft pin, and the telescopic cover assembly is used for overturning to the position above the base to conduct dustproof protection on the electric folding chair when the electric folding chair is idle and folded; and the buckle assembly is mounted on the base and is used for positioning the telescopic cover assembly on the base, so that the telescopic cover assembly stably covers the electric folding chair. According to the electric folding chair, by arranging the telescopic cover assembly and the buckle assembly, after the electric folding chair is folded in an idle state, the telescopic cover assembly is turned over to the position above the base and is stretched, the telescopic cover assembly is positioned on the base through the buckle assembly, and then the telescopic cover can cover the electric folding chair for dust prevention.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wheelchairs, in particular to a foldable electric wheelchair. Background Art

[0002] An electric wheelchair is upgraded on the basis of a traditional manual wheelchair by adding high-performance power drive devices, intelligent control devices, batteries and other components. It is equipped with an artificial operation intelligent controller. It is a new generation of intelligent wheelchair with multiple functions and a high-tech product combining modern precision machinery, intelligent numerical control, engineering mechanics and other fields.

[0003] Referring to a foldable electric wheelchair disclosed in a patent application with a reference publication number of CN 214382451 U, its wheelchair frame includes a rear-wheel bracket extending forward and backward, a front-wheel bracket extending obliquely upward from the front lower direction to the rear upper direction, a connecting rod, a support rod, the upper and lower ends of which are respectively rotatably connected to the front end of the rear-wheel bracket and the lower end of the front-wheel bracket, a backrest bracket, and an armrest bracket. By rotatably connecting the upper and lower ends of the support rod to the front-wheel bracket and the rear-wheel bracket respectively, and rotatably connecting the front and rear ends of the armrest bracket to the rear-wheel bracket and the backrest bracket respectively, the front-wheel bracket, the support rod, the rear-wheel bracket and the connecting rod form a first four-bar linkage mechanism, and the rear-wheel bracket, the support rod, the backrest bracket and the armrest bracket form a second four-bar linkage mechanism. The wheelchair frame locking mechanism only needs to lock the relative positions of the front-wheel bracket and the support rod to lock the wheelchair frame in the unfolded state. It has a clever concept, a simple structure, convenient operation, and is driven by electricity, making it convenient to use.

[0004] As shown in the above prior art, although the existing foldable electric wheelchair can reduce the occupied space when idle by folding, it does not consider that the wheelchair is prone to accumulate dust when idle. Additional dust-proof measures need to be taken after the wheelchair is folded. Otherwise, if too much dust accumulates after being idle for a long time, the wheelchair needs to be cleaned before it can be used again, which brings inconvenience to the use of the wheelchair.

[0005] Therefore, it is necessary to provide a foldable electric wheelchair to solve the above technical problems. Summary of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] To solve the above technical problems, the utility model provides a foldable electric wheelchair.

[0008] (2) Technical Solutions

[0009] To achieve the above purposes, the utility model is realized through the following technical solutions: A foldable electric wheelchair, comprising:

[0010] A base, on which an electric folding chair is installed;

[0011] A telescopic cover assembly, one end of the telescopic cover assembly is rotatably connected to one end of the base away from the electric folding chair through a pin, and is used to flip above the base to protect the electric folding chair from dust when the electric folding chair is idly folded;

[0012] A buckle assembly, the buckle assembly is installed on the base, and is used to position the telescopic cover assembly on the base so that it stably covers the electric folding chair;

[0013] A storage assembly, the storage assembly is installed on the dust-proof cover assembly, and when the electric folding chair is in use, the telescopic cover assembly is flipped below to make it have a storage function.

[0014] Preferably, the telescopic cover assembly includes a first cover shell rotatably connected to one end of the base through a pin. First sliding grooves are symmetrically formed on the inner wall of the first cover shell. A second cover shell is slidably connected to the inner wall of the first cover shell. First sliders are fixed on both sides of the second cover shell. The first sliders are slidably connected to the inner wall of the first sliding groove. A third cover shell is slidably connected to the inner wall of the second cover shell. Second sliding grooves are symmetrically formed on the inner wall of the second cover shell. Second sliders are fixed on both sides of the third cover shell. The second sliders are slidably connected to the inner wall of the second sliding groove.

[0015] Preferably, the buckle assembly includes a fixed block fixed above the base near one end of the electric folding chair. A clamping block is slidably connected to the inner wall of the fixed block. A pull rod is fixed to the end of the clamping block away from the electric folding chair. The pull rod is slidably connected to the inner wall of the fixed block. A spring is fixed to the end of the clamping block near the pull rod. The end of the spring away from the clamping block is fixed to the inner wall of the fixed block. A clamping groove is formed on one side of the third cover shell near the clamping block. The clamping block is clamped to the inner wall of the clamping groove.

[0016] Preferably, the storage assembly includes lifting sliding grooves symmetrically formed on the inner wall of the third cover shell. Semi-circular grooves are symmetrically formed on the inner wall of the third cover shell. The semi-circular grooves are communicated with the lifting sliding grooves. A sliding rod is slidably connected to the inner wall of the lifting sliding groove. Slots are formed at the ends of the first cover shell, the second cover shell and the third cover shell away from the lifting sliding groove. A baffle is inserted into the inner walls of the three slots. Both ends of the baffle are fixed to the sliding rod.

[0017] Preferably, the clamping block is trapezoid-shaped.

[0018] Preferably, support wheels are symmetrically fixed on the first cover shell.

[0019] (III) Beneficial effects

[0020] The present utility model provides a foldable electric wheelchair. Compared with the prior art, the following beneficial effects are achieved:

[0021] 1. By setting up the telescopic cover assembly and the buckle assembly, when the electric folding chair is folded during idle time, the telescopic cover assembly is flipped above the base and extended, and the buckle assembly is used to position the telescopic cover assembly on the base, so that the telescopic cover can cover the electric folding chair for dust prevention. When the electric folding chair is used next time, there is no need to clean the dust, which is convenient for use.

[0022] 2. By setting up the storage component, when the baffle is inserted into the slot, it penetrates through the first housing, the second housing and the third housing at the same time, so that the telescopic cover assembly can be stably kept in a contracted state, and items can be placed inside the telescopic cover assembly, providing convenience for placing items on the electric wheelchair. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 is a schematic diagram of the buckle assembly of the present utility model;

[0025] Figure 3 is a schematic diagram of the card slot of the present utility model;

[0026] Figure 4 is a schematic diagram of the first slider of the present utility model;

[0027] Figure 5 is a schematic diagram of the clamping block of the present utility model;

[0028] Figure 6 is a schematic diagram of the baffle of the present utility model.

[0029] Reference numerals in the figures: 1. Base; 2. Telescopic cover assembly; 3. Buckle assembly; 4. Storage component; 5. First housing; 6. First sliding groove; 7. Second housing; 8. First slider; 9. Third housing; 10. Second sliding groove; 11. Second slider; 12. Fixed block; 13. Clamping block; 14. Pull rod; 15. Spring; 16. Card slot; 17. Lifting sliding groove; 18. Semi-circular groove; 19. Slide bar; 20. Baffle; 21. Slot; 22. Support wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] The present utility model provides two technical solutions:

[0032] Figures 1 to 5 The first embodiment is shown: a foldable electric wheelchair, comprising:

[0033] A base 1, on which an electric folding chair is installed above the base 1;

[0034] A telescopic cover assembly 2, one end of the telescopic cover assembly 2 is rotatably connected to one end of the base 1 away from the electric folding chair through a pin, and is used to flip above the base 1 to protect the electric folding chair from dust when the electric folding chair is folded and idle;

[0035] A buckle assembly 3, the buckle assembly 3 is installed on the base 1, and is used to position the telescopic cover assembly 2 on the base 1 so that it stably covers the electric folding chair;

[0036] A storage assembly 4, the storage assembly 4 is installed on the dust-proof cover assembly, and when the electric folding chair is in use, the telescopic cover assembly 2 is flipped below to make it have a storage function.

[0037] The telescopic cover assembly 2 includes a first cover shell 5 rotatably connected to one end of the base 1 through a pin. Symmetrical first sliding grooves 6 are provided on the inner wall of the first cover shell 5. A second cover shell 7 is slidably connected to the inner wall of the first cover shell 5. First sliders 8 are fixed on both sides of the second cover shell 7, and the first sliders 8 are slidably connected to the inner wall of the first sliding groove 6. A third cover shell 9 is slidably connected to the inner wall of the second cover shell 7. Symmetrical second sliding grooves 10 are provided on the inner wall of the second cover shell 7. Second sliders 11 are fixed on both sides of the third cover shell 9, and the second sliders 11 are slidably connected to the inner wall of the second sliding groove 10.

[0038] The buckle assembly 3 includes a fixed block 12 fixed above the base 1 near one end of the electric folding chair. A clamping block 13 is slidably connected to the inner wall of the fixed block 12. A pull rod 14 is fixed to the end of the clamping block 13 facing away from the electric folding chair, and the pull rod 14 is slidably connected to the inner wall of the fixed block 12. A spring 15 is fixed to the end of the clamping block 13 near the pull rod 14, and the end of the spring 15 facing away from the clamping block 13 is fixed to the inner wall of the fixed block 12. A clamping groove 16 is provided on one side of the third cover shell 9 close to the clamping block 13, and the clamping block 13 is clamped to the inner wall of the clamping groove 16.

[0039] The clamping block 13 is trapezoidally arranged.

[0040] Through the setting of the telescopic cover assembly 2 and the buckle assembly 3 in this application, after the electric folding chair is folded when it is idle, the telescopic cover assembly 2 is flipped above the base 1 and extended, and the buckle assembly 3 is used to position the telescopic cover assembly 2 on the base 1, so that the telescopic cover can cover the electric folding chair for dust prevention. When the electric folding chair is used next time, there is no need to clean the dust, which is convenient for use.

[0041] Figures 3 to 6The second implementation manner is shown. The main difference from the first implementation manner is that the storage component 4 includes lifting sliding grooves 17 symmetrically formed on the inner wall of the third housing 9. Semi-circular grooves 18 are symmetrically formed on the inner wall of the third housing 9, and the semi-circular grooves 18 communicate with the lifting sliding grooves 17. A sliding rod 19 is slidably connected to the inner wall of the lifting sliding grooves 17. Slots 21 are formed at one ends of the first housing 5, the second housing 7, and the third housing 9 away from the lifting sliding grooves 17. A baffle 20 is inserted into the inner walls of the three slots 21, and both ends of the baffle 20 are fixed to the sliding rod 19.

[0042] Support wheels 22 are symmetrically fixed on the first housing 5.

[0043] By providing the storage component 4 in this application, when the baffle 20 is inserted into the slot 21, it penetrates through the first housing 5, the second housing 7, and the third housing 9 at the same time, enabling the telescopic cover assembly 2 to stably maintain a contracted state and allowing items to be placed inside the telescopic cover assembly 2, which provides convenience for placing items on the electric wheelchair.

[0044] Working principle:

[0045] The folding method of the electric folding chair adopts the folding method of the electric folding chair of Bangbang elderly mobility scooter, which is prior art and will not be elaborated.

[0046] When the electric folding chair is idle and folded, the telescopic cover assembly 2 is flipped above the base 1, and the telescopic cover assembly 2 is extended to cover the electric folding chair; the second housing 7 slides on the inner wall of the first housing 5, driving the first slider 8 to slide on the inner wall of the first sliding groove 6, and then the third housing 9 slides on the inner wall of the second housing 7, driving the second slider 11 to slide on the inner wall of the second sliding groove 10 to complete the extension of the telescopic cover assembly 2.

[0047] When the third housing 9 extends and slides on the top of the base 1 until it contacts the clamping block 13, the inclined surface of the clamping block 13 is squeezed, causing the clamping block 13 to move inside the fixed block 12, and the spring 15 contracts until the clamping block 13 aligns with the card slot 16. The spring 15 rebounds, and the clamping block 13 moves in the fixed block 12 towards the direction close to the third housing 9 and is clamped into the card slot 16 to position the third housing 9 on the base 1.

[0048] When the electric folding chair needs to be used, the pull rod 14 is moved in the direction away from the card slot 16. After the clamping block 13 leaves the card slot 16, the telescopic cover assembly 2 is contracted, and the telescopic cover assembly 2 is flipped downward so that the support wheels 22 touch the ground. Then, the baffle 20 drives the sliding rod 19 to slide in the semi-circular groove 18. When the sliding rod 19 slides into the lifting sliding groove 17, the baffle 20 moves downward in the lifting sliding groove 17, and the bottom of the baffle 20 penetrates through the three slots 21, so that items can be placed inside the telescopic cover assembly 2 when the electric folding chair is in use.

[0049] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable electric wheelchair, characterized in that: include: A base (1), an electric folding chair being mounted on the base (1); A telescopic cover assembly (2), one end of which is rotatably connected to an end of the base (1) away from the electric folding chair via an axle pin, and is used to flip over to the top of the base (1) to protect the electric folding chair from dust when the electric folding chair is folded and idle; A buckle assembly (3), the buckle assembly (3) being mounted on the base (1) and used for positioning the telescopic cover assembly (2) on the base (1) so that it stably covers the electric folding chair; A storage component (4) is installed on the dust cover component. When the electric folding chair is in use, the telescopic cover component (2) is flipped downward to provide a storage function.

2. A foldable electric wheelchair according to claim 1, characterized in that: The telescopic cover assembly (2) comprises a first cover shell (5) rotatably connected to one end of the base (1) via an axle pin, a support wheel (22) is symmetrically fixed on the first cover shell (5), a first slide groove (6) is symmetrically opened on the inner wall of the first cover shell (5), a second cover shell (7) is slidably connected to the inner wall of the first cover shell (5), first sliders (8) are fixed on both sides of the second cover shell (7), and the first slider (8) is slidably connected to the inner wall of the first slide groove (6).

3. A foldable electric wheelchair according to claim 2, characterized in that: The inner wall of the second cover shell (7) is slidably connected to the third cover shell (9), the inner wall of the second cover shell (7) is symmetrically provided with a second slide groove (10), second sliders (11) are fixed on both sides of the third cover shell (9), and the second sliders (11) are slidably connected to the inner wall of the second slide groove (10).

4. A foldable electric wheelchair according to claim 3, characterized in that: The buckle assembly (3) comprises a fixed block (12) fixed above the base (1) and close to one end of the electric folding chair, a clamping block (13) is slidably connected to the inner wall of the fixed block (12), the clamping block (13) is arranged in a trapezoidal shape, a pull rod (14) is fixed to the end of the clamping block (13) away from the electric folding chair, and the pull rod (14) is slidably connected to the inner wall of the fixed block (12).

5. A foldable electric wheelchair according to claim 4, characterized in that: A spring (15) is fixed to one end of the clamping block (13) close to the pull rod (14); one end of the spring (15) facing away from the clamping block (13) is fixed to the inner wall of the fixed block (12); a clamping groove (16) is provided on one side of the third cover shell (9) close to the clamping block (13); and the clamping block (13) is clamped to the inner wall of the clamping groove (16).

6. A foldable electric wheelchair according to claim 3, characterized in that: The storage component (4) includes a lifting slot (17) symmetrically opened on the inner wall of the third cover shell (9), and a semicircular groove (18) symmetrically opened on the inner wall of the third cover shell (9). The semicircular groove (18) is connected to the lifting slot (17), and the inner wall of the lifting slot (17) is slidably connected with a slide rod (19). The first cover shell (5), the second cover shell (7) and the third cover shell (9) are all provided with a slot (21) at one end away from the lifting slot (17), and a baffle (20) is inserted into the inner wall of the three slots (21), and the two ends of the baffle (20) are fixed to the slide rod (19).

Images