CN215779271U

CN215779271U - Quick folding type portable electric wheelchair

Info

Publication number: CN215779271U
Application number: CN202122173710.2U
Authority: CN
Inventors: 王召伟
Original assignee: Anhui Jinbaihe Medical Equipment Co ltd
Current assignee: Anhui Jinbaihe Medical Equipment Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-11
Anticipated expiration: 2031-09-09

Abstract

The quick folding type portable electric wheelchair comprises a seat plate frame, wherein a first connecting plate is arranged in the middle of the bottom surface of the seat plate frame, a folding limiting frame is arranged at the tail of the bottom surface, and the bottom of the seat plate frame is rotatably connected with a bottom frame; the bottom frame comprises a front rod body, a tripod, a rear rod body and a middle rod body, a rear wheel assembly is mounted at the bottom of the rear part of the side guard plate, a front wheel assembly is mounted on the outer wall of the front part of the side guard plate, a pedal assembly is arranged on the side wall of the front part of the seat plate frame, the top of the rear part of the seat plate frame is connected with a backrest frame, and a locking mechanism is used for positioning between the backrest frame and the seat plate frame; when the electric push rod extends or contracts, the electric push rod can drive the tripod to rotate around the point A so as to drive the seat plate frame to rotate around the point B, so that the backrest frame and the seat plate frame synchronously rotate to change the supporting inclination angle, and a user can adjust the angle according to the comfort of the user.

Description

Quick folding type portable electric wheelchair

Technical Field

The utility model belongs to the technical field of electric wheelchair processing, and particularly relates to a quick folding type portable electric wheelchair.

Background

The electric wheelchair mainly refers to a wheelchair driven by electric power, and is a transportation tool and an auxiliary tool aiming at replacing the walk, can be folded without disassembling a battery, and is convenient to carry and store; nowadays, the electric wheelchair becomes an indispensable tool for riding instead of walk for the elderly and the disabled with inconvenient actions, and has very wide application objects;

present electronic wheelchair, its support inclination is comparatively fixed for the majority, and the user can't adjust support angle to suitable position according to self needs, and a small number is adjustable, and its regulation mode is mainly manual, inconvenient old person, the operation of disabled person.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a quick folding type portable electric wheelchair, which has the following specific technical scheme:

the quick folding type portable electric wheelchair comprises a seat plate frame, wherein a first connecting plate is arranged in the middle of the bottom surface of the seat plate frame, a folding limiting frame is arranged at the tail of the bottom surface, and the bottom of the seat plate frame is rotatably connected with a bottom frame;

the bottom frame comprises a front rod body, triangular supports, a rear rod body and a middle rod body, the middle rod body penetrates through the two first connecting plates in a rotating mode, the two triangular supports are vertically arranged on the inner wall of the rear rod body, each triangular support is provided with an upper overhanging end and a lower overhanging end, the upper overhanging ends are slidably mounted on the side walls of the folding limiting frame, and an electric push rod is rotatably mounted between the lower overhanging ends and the front rod body; the two ends of the front rod body are fixedly connected to the front part of the inner wall of the side protection plate, the two ends of the rear rod body are rotatably arranged at the rear part of the inner wall of the side protection plate, the rotating joint is a point A, and the two ends of the middle rod body are rotatably arranged in the middle of the inner wall of the side protection plate and are rotatably connected with a point B;

the bottom of the rear part of the side guard plate is provided with a rear wheel assembly, the outer wall of the front part of the side guard plate is provided with a front wheel assembly, the side wall of the front part of the seat plate frame is provided with a pedal assembly, the top of the rear part of the seat plate frame is connected with a backrest frame, and a locking mechanism is used for positioning between the backrest frame and the seat plate frame;

when the locking mechanism is unlocked, the electric push rod can drive the tripod to rotate around the point A when being extended or contracted so as to drive the seat board frame to rotate around the point B, so that the seat board frame and the bottom frame can be folded, folded or unfolded for forming.

Furthermore, folding spacing includes limiting plate and movable rod, and the afterbody bottom surface of bedplate frame is located perpendicularly to two limiting plates, every transversely distributed's spout is all seted up to the inside of limiting plate, the movable rod slides and runs through the spout of two limiting plates, the both ends of movable rod rotate the last overhanging end of connecting two tripods.

Furthermore, the inner wall of the front rod body is vertically and symmetrically provided with second connecting plates, the front end of the electric push rod is rotatably installed between the two second connecting plates, and the rear end of the electric push rod is rotatably installed between the two lower extending ends.

The backrest frame is characterized in that backrest positioning plates are arranged on two sides of the bottom of the backrest frame, the two backrest positioning plates are rotatably connected to the inner wall of the tail part of the seat plate frame, and the backrest positioning plates and the seat plate frame are positioned through locking mechanisms.

Further, locking mechanism includes action bars, pothook and gag lever post, the connection of the afterbody of bedplate frame has the gag lever post, the action bars sets up with gag lever post parallel interval, the both ends of gag lever post all are equipped with the pothook, the catching groove orientation of pothook deviates from the bedplate frame setting, the pothook rotates through the torsional spring to be installed in the inner wall of back locating plate, it is connected to rotate the block between pothook and the action bars.

Further, a head support assembly is mounted on the top of the back frame, the head support assembly having multiple degrees of freedom.

The utility model has the beneficial effects that: the electric push rod can drive the tripod to rotate around the point A and then drive the seat plate frame to rotate around the point B when extending or contracting, so that the backrest frame and the seat plate frame rotate synchronously to change the supporting inclination angle, and a user can adjust the angle according to the comfort of the user.

Drawings

FIG. 1 is a schematic view showing the structure of a portable electric wheelchair of the quick folding type of the present invention;

figure 2 shows a schematic view of the bottom frame structure of the present invention;

FIG. 3 is a schematic view of the electric wheelchair in an initial tilt state;

FIG. 4 is a schematic diagram of the electrical wheelchair of the present invention in an inclined state;

FIG. 5 shows an enlarged schematic view of FIG. 2 at A;

FIG. 6 shows a schematic structural view of the head support assembly of the present invention;

shown in the figure: 1. a seat plate frame; 11. a first connecting plate; 2. a side guard plate; 3. an electric push rod; 4. a bottom frame; 41. a front rod body; 411. a second connecting plate; 42. a tripod; 43. a rear rod body; 44. a middle rod body; 5. a backrest frame; 51. a backrest positioning plate; 6. a head support assembly; 61. a chassis body; 62. fixing the rod; 63. a first adjusting arc plate; 64. a second adjusting arc plate; 65. a headrest fixing plate; 66. a headrest; 7. folding the limiting frame; 71. a limiting plate; 711. a chute; 72. a movable rod; 8. a locking mechanism; 81. an operating lever; 82. a hook; 83. a limiting rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1-4, the fast folding type portable electric wheelchair comprises a seat plate frame 1, wherein a first connecting plate 11 is arranged in the middle of the bottom surface of the seat plate frame 1, a folding limiting frame 7 is arranged at the tail of the bottom surface, and the bottom of the seat plate frame 1 is rotatably connected with a bottom frame 4;

the bottom frame 4 comprises a front rod body 41, tripods 42, a rear rod body 43 and a middle rod body 44, the middle rod body 44 penetrates through the two first connecting plates 11 in a rotating mode, the two tripods 42 are vertically arranged on the inner wall of the rear rod body 43, each tripod 42 is provided with an upper overhanging end and a lower overhanging end, the upper overhanging ends are installed on the side wall of the folding limiting frame 7 in a sliding mode, and an electric push rod 3 is installed between each lower overhanging end and the front rod body 41 in a rotating mode; the two ends of the front rod body 41 are fixedly connected to the front part of the inner wall of the side guard plate 2, the two ends of the rear rod body 43 are rotatably arranged at the rear part of the inner wall of the side guard plate 2, and the rotating connection position is a point A, and the two ends of the middle rod body 44 are rotatably arranged at the middle part of the inner wall of the side guard plate 2 and are rotatably connected with a point B;

the bottom of the rear part of the side guard plate 2 is provided with a rear wheel assembly, the outer wall of the front part of the side guard plate 2 is provided with a front wheel assembly, the side wall of the front part of the seat plate frame 1 is provided with a pedal assembly, the top of the rear part of the seat plate frame 1 is connected with a backrest frame 5, and a locking mechanism 8 is positioned between the backrest frame 5 and the seat plate frame 1;

the electric push rod 3 can drive the tripod 42 to rotate around the point A when extending or contracting so as to drive the seat plate frame 1 to rotate around the point B, so that the backrest frame 5 and the seat plate frame 1 synchronously rotate to change the supporting inclination angle.

The pedal assembly is adjusted up and down and front and back, and the front and back distance and the up and down distance of the pedal plate are adjusted according to the height of a user. Meet different requirements of different users.

As shown in fig. 2, the folding limiting frame 7 includes limiting plates 71 and movable rods 72, the two limiting plates 71 are vertically disposed on the bottom surface of the tail portion of the seat plate frame 1, a sliding groove 711 which is transversely distributed is formed in each limiting plate 71, the movable rods 72 slidably penetrate through the sliding grooves 711 of the two limiting plates 71, and two ends of each movable rod 72 are rotatably connected to the upper extending ends of the two tripods 42; when the upper overhanging end of the tripod rotates, the upper overhanging end moves along the sliding groove, so that the seat board frame does lever motion around the point B to change the inclination angle, and a user can adjust the angle according to the comfort of the user.

As shown in fig. 2, the inner wall of the front rod 41 is vertically and symmetrically provided with second connecting plates 411, the front end of the electric push rod 3 is rotatably installed between the two second connecting plates 411, and the rear end of the electric push rod 3 is rotatably installed between the two lower extending ends; the design of two first connecting plates, overhanging end down can flexible linkage, guarantees each junction stable rotation simultaneously.

As shown in fig. 2, backrest positioning plates 51 are arranged on two sides of the bottom of the backrest frame 5, both the backrest positioning plates 51 are rotatably connected to the inner wall of the tail part of the seat plate frame 1, and the backrest positioning plates 51 and the seat plate frame 1 are positioned by a locking mechanism 8; when the backrest frame rotates, the backrest positioning plate can be driven to rotate around the seat plate frame, so that the backrest frame can be rotated to be folded and unfolded.

As shown in fig. 5, the locking mechanism 8 includes an operating rod 81, hooks 82 and a limiting rod 83, the limiting rod 83 is connected to the tail of the seat plate frame 1, the operating rod 81 and the limiting rod 83 are arranged in parallel at intervals, the hooks 82 are arranged at two ends of the limiting rod 83, hook grooves of the hooks 82 are arranged away from the seat plate frame 1, the hooks 82 are rotatably mounted on the inner wall of the backrest positioning plate 51 through torsion springs, and the hooks 82 are rotatably connected with the operating rod 81 in a clamping manner; when the backrest frame and the seat board frame are locked, the limiting rod is connected with the clamping hook in a clamping manner.

As shown in fig. 6, a head support assembly 6 is mounted on the top of the backrest frame 5, and the head support assembly 6 has multiple degrees of freedom; the head support assembly 6 comprises a chassis body 61, a fixed rod 62, a first adjusting arc plate 63, a second adjusting arc plate 64, a headrest fixed plate 65 and a headrest 66; the middle part vertical fixation of underframe body has the dead lever, the top of dead lever is rotated and is connected first regulation arc board, the tip of first regulation arc board is rotated and is connected the second and adjust the arc board, the top that the arc board was adjusted to the second is rotated and is connected the headrest fixed plate, the outer wall of headrest fixed plate is equipped with the headrest, first regulation arc board, the rotation junction of second regulation arc board passes through the locking knob location, adjustable first regulation arc board, the turned angle of arc board is adjusted to the second, thereby change the angle of headrest, can adjust the headrest height according to user's height, there is the supporting role to the head during use.

The utility model is implemented as follows:

when the wheelchair is unfolded for use, the backrest frame 5 and the seat plate frame 1 are vertically distributed, the clamping hook 82 and the limiting rod 83 are clamped into a whole, in an initial state, the electric push rod 3 is in a completely contracted state, all rod bodies of the bottom frame 4 are in the initial state, and the seat plate frame 1 is in a horizontal state;

when the supporting inclination angle needs to be changed, the electric push rod 3 extends, the joint of the front rod body 41 and the side guard plate 2 is a point C, the fixed point C can reversely push a point D of the lower overhanging end of the triangular frame 42, the triangular frame 42 rotates anticlockwise, a point E of the upper overhanging end of the triangular frame 42 drives the movable rod 72 to move inwards along the sliding groove 711, and meanwhile, the seat plate frame 1 can be pressed downwards from the rear end, so that the seat plate frame 1 rotates clockwise around the point B, therefore, the seat plate frame 1 and the backrest frame 5 can integrally tilt backwards, and the supporting inclination angle is changed and adjusted;

the user can also change the supporting angles of the headrest and the pedal according to the self requirement;

when the foldable wheelchair needs to be folded, the operating rod 81 is pulled upwards, the operating rod 81 drives the hook 82 to rotate around the backrest positioning plate 51, and the limiting rod 83 is separated from the hook 82, so that the backrest frame 5 can be folded to be overlapped with the seat plate frame 1.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. Quick portable electronic wheelchair of folding type, its characterized in that: the folding seat board comprises a seat board frame, wherein a first connecting plate is arranged in the middle of the bottom surface of the seat board frame, a folding limiting frame is arranged at the tail of the bottom surface, and the bottom of the seat board frame is rotatably connected with a bottom frame;

2. The portable electric wheelchair of claim 1, further comprising: the folding limiting frame comprises limiting plates and movable rods, the two limiting plates are perpendicularly arranged on the bottom surface of the tail portion of the seat plate frame, transversely distributed sliding grooves are formed in the limiting plates, the movable rods slidably penetrate through the sliding grooves of the two limiting plates, and the two ends of the movable rods are rotatably connected with upper extending ends of the two tripods.

3. The portable electric wheelchair of claim 2, further comprising: the inner wall of the front rod body is vertically and symmetrically provided with second connecting plates, the front end of the electric push rod is rotatably installed between the two second connecting plates, and the rear end of the electric push rod is rotatably installed between the two lower extending ends.

4. The portable electric wheelchair of claim 1, further comprising: the backrest frame is characterized in that backrest positioning plates are arranged on two sides of the bottom of the backrest frame, the two backrest positioning plates are rotatably connected to the inner wall of the tail part of the seat plate frame, and the backrest positioning plates and the seat plate frame are positioned through locking mechanisms.

5. The portable electric wheelchair of claim 4, further comprising: the locking mechanism comprises an operating rod, a clamping hook and a limiting rod, the tail of the seat plate frame is connected with the limiting rod, the operating rod and the limiting rod are arranged at intervals in parallel, the two ends of the limiting rod are respectively provided with the clamping hook, the direction of the clamping hook groove deviates from the seat plate frame, the clamping hook is rotatably installed on the inner wall of the backrest positioning plate through a torsion spring, and the clamping hook and the operating rod are connected in a rotating and clamping mode.

6. The portable electric wheelchair of claim 1, further comprising: a head support assembly is mounted on top of the back frame, the head support assembly having a plurality of degrees of freedom.