CN214285473U

CN214285473U - Electric wheelchair with independent damping mechanism

Info

Publication number: CN214285473U
Application number: CN202023249607.3U
Authority: CN
Inventors: 谢夫伟; 袁婷婷
Original assignee: Zhenjiang Assure Medical Equipment Co ltd
Current assignee: Zhenjiang Assure Medical Equipment Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-28
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses an electronic wheelchair with independent damper, include: the frame, the installation piece is installed to frame bilateral symmetry, and the installation piece is connected with bumper shock absorber, forearm and connecting rod, and wherein, the one end and the rotatable being connected of installation piece of forearm, the other end are connected with a connecting piece, the connecting piece lower extreme is provided with the front fork, and the one end of bumper shock absorber is fixed on the installation piece, the other end is connected with the forearm, and the connecting rod setting is in the forearm, and it includes first end and second end, and first end is provided with first joint bearing, and the second is served and is provided with second joint bearing, first end through first joint bearing with the installation piece is connected, the second end through second joint bearing with the connecting piece is fixed. The utility model discloses a joint bearing is installed at the connecting rod both ends to inject the position of connecting rod, forearm and bumper shock absorber, realize that the front fork can remain the same angle with ground all the time, to many rugged road surfaces, adaptability is stronger, operability and better, has improved user experience.

Description

Electric wheelchair with independent damping mechanism

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to electronic wheelchair with independent damper.

Background

Electric wheelchair is very convenient for the disabled, can meet rugged and uneven road surface inevitable at electric wheelchair in-process of traveling, perhaps there is the barrier of take the altitude, conventional wheelchair can make the user produce great shock when strideing across the barrier, serious probably appears turning on one's side, threaten user's safety, because the front wheel of wheelchair is the universal wheel, when meetting rugged and uneven road surface, the change that the angle of front fork and ground is not stopped, lead to the flexibility of wheelchair, the operability is relatively poor, user's experience feels not good.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects of the prior art, the utility model provides an electric wheelchair with an independent damping mechanism.

The technical scheme is as follows: electric wheelchair with independent damping mechanism, include: the frame, the installation piece is installed to frame bilateral symmetry, and the installation piece is connected with bumper shock absorber, forearm and connecting rod, and wherein, the one end and the rotatable being connected of installation piece of forearm, the other end are connected with a connecting piece, the connecting piece lower extreme is provided with the front fork, and the one end of bumper shock absorber is fixed on the installation piece, the other end is connected with the forearm, and the connecting rod setting is in the forearm, and it includes first end and second end, and first end is provided with first joint bearing, and the second is served and is provided with second joint bearing, first end through first joint bearing with the installation piece is connected, the second end through second joint bearing with the connecting piece is fixed.

Further, the method comprises the following steps:

still include first connecting axle, be provided with the first mounting hole that runs through both sides on the forearm, first connecting axle passes first mounting hole fixes the forearm on the installation piece.

Further, the method comprises the following steps:

still include the second connecting axle, be provided with the second mounting hole on the connecting piece, the second connecting axle passes the second mounting hole is installed forearm one end on the connecting piece.

Further, the method comprises the following steps:

the lower bottom surface of the connecting piece is set to be a horizontal plane and is rotatably and fixedly connected with the upper end surface of the front fork.

Further, the method comprises the following steps:

the mounting block is of a porous plate-shaped structure and at least comprises a first through hole, a second through hole and a third through hole, the first through hole is matched with the first mounting hole and fixedly mounted through the first connecting shaft, the second through hole is mounted with the shock absorber, and the third through hole is fixedly mounted with the connecting rod.

Further, the method comprises the following steps:

the first connecting shaft is a pin shaft which can be rotatably connected.

Further, the method comprises the following steps:

the second connecting shaft is a pin shaft which can be rotatably connected.

Has the advantages that: the utility model discloses a joint bearing is installed at the connecting rod both ends to inject the position of connecting rod, forearm and bumper shock absorber, independently realize the shock-absorbing function of wheelchair, specifically can realize that the front fork can keep the same angle with ground all the time, to many rugged road surfaces, adaptability is stronger, operability and better, has improved user experience.

Drawings

FIG. 1 is a schematic view of a wheelchair in accordance with the present invention;

FIG. 2 is a schematic view of a wheelchair showing a linkage according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the wheelchair with parts hidden according to the embodiment of the present invention.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The utility model discloses an electric wheelchair with independent damper, adaptable multiple rugged road surface, and remain the stability of wheelchair throughout, as shown in fig. 1-3, it includes: frame 1, installation piece 2 is installed to 1 bilateral symmetry of frame, installation piece 2 is connected with bumper shock absorber 3, forearm 4 and connecting rod 5, wherein, forearm 4 is the arc structure of semi-closed type, the one end and the rotatable connection of installation piece 2 of forearm 4, it is specific, be provided with the first mounting hole 41 that runs through both sides on the forearm 4, first connecting shaft 9 passes first mounting hole 41 and fixes forearm 4 on installation piece 2, the other end and a connecting piece 6 of forearm 4 are connected, 6 lower extremes of connecting piece are provided with front fork 7, front wheel 8 is installed to front fork 7 front end.

Connecting piece 6 can set up to massive structure, it is provided with second mounting hole 61 to run through on the connecting piece 6, second connecting axle 10 passes second mounting hole 61 and installs forearm 4 one end on connecting piece 6, the wheelchair is in the subaerial time of level, the lower bottom surface 62 of connecting piece 6 sets up to the horizontal plane, except that other surfaces on this surface, all can be according to the connecting rod, the adaptation adjustment is made to forearm position relation, this embodiment does not prescribe a limit to its structure, and its rotatable fixed connection with the up end 71 of front fork 7, rotatable setting makes can be when the rotatory centering of second joint bearing, make the fine setting to front fork 7.

In this embodiment, the first connecting shaft 9 and the second connecting shaft 10 can be both configured as a rotatable pin.

Further, the one end of bumper shock absorber 3 is fixed on installation piece 2, and the other end is connected with forearm 4, and it installs on forearm 4 that is close to first connecting axle 9, first mounting hole 41 promptly and all on the forearm of keeping away from the front fork orientation with the hookup point department of bumper shock absorber 3, the center of forearm 4 promptly is the demarcation point, divide into first section and second section, the bumper shock absorber all sets up on same section with first mounting hole 41, in this embodiment, set up on first section, the connecting piece is installed on the second section. This relationship allows the shock absorber 3 to compress and the front arm 4 to respond and rotate faster with the first connecting shaft and to operate in the same direction as the shock absorber. Because the front arm 4 is arranged to be an arc-shaped hollow structure, the connecting rod 5 is arranged in the front arm 4 according to the length of the front arm 4 and comprises a first end 51 and a second end 52, the first end 51 is provided with a first joint bearing 53, the second end 52 is provided with a second joint bearing 54, the first end 51 is connected with the mounting block 2 through the first joint bearing 53, the second end 52 is fixed with the connecting piece 6 through the second joint bearing 54, and the connecting rod limits the first joint bearing and the second joint bearing, so that the relative positions of the first joint bearing and the second joint bearing are kept constant. The connection fixing mode enables the first joint bearing, the first connecting shaft, the second connecting shaft and the second joint bearing to be in a shape close to a parallelogram from the perspective of position relation, and therefore interaction can be achieved.

The mounting block 2 is a porous plate-like structure, and the specific structure is set according to the relationship with other components fixed with the mounting block, and the embodiment is not particularly limited. But at least comprises a first through hole 21, a second through hole 22 and a third through hole 23, wherein the first through hole 21 is matched with the first mounting hole 41 and is fixedly mounted through the first connecting shaft 9, the second through hole 22 is mounted with the shock absorber 3, and the third through hole 23 is fixedly mounted with the connecting rod 5.

Further, in this embodiment, in addition to the above structure, the vehicle body frame further includes rear wheels on two sides of the vehicle frame 1, a seat cushion above the vehicle frame, handrails on two sides of the seat cushion, pedals arranged at the front end of the vehicle frame, and a backrest assembly arranged at the rear end of the vehicle frame.

The principle of the wheelchair is as follows: when the front wheel meets an obstacle, the shock absorber is compressed and moves upwards, and the shock absorber is connected with the front arm, so that the front arm can rotate correspondingly around the first connecting shaft, correspondingly, the upper end surface of the front fork and the lower end surface of the connecting piece are not parallel to the ground, and a certain angle appears, if the front arm is kept, the wheelchair is possibly unstable, and the front wheel is correspondingly provided with the rotatable second connecting rod, the rotating and centering second joint bearing and the connecting rod;

therefore correspondingly, the connecting rod can pull the second joint bearing and the connecting piece to the direction opposite to the changing direction of the second joint bearing, the angle of the ball head of the second joint bearing is changed to drive the front fork to change the angle at the same time to enable the front fork to be always parallel to the ground, namely the front fork finally enables the angle change caused by the fact that the front fork meets the obstacle with the front fork to be offset, and therefore the purpose that the front fork and the ground are always parallel is achieved.

Claims

1. An electric wheelchair with an independent damping mechanism, comprising: the frame, the installation piece is installed to frame bilateral symmetry, and the installation piece is connected with bumper shock absorber, forearm and connecting rod, and wherein, the one end and the rotatable being connected of installation piece of forearm, the other end are connected with a connecting piece, the connecting piece lower extreme is provided with the front fork, and the one end of bumper shock absorber is fixed on the installation piece, the other end is connected with the forearm, and the connecting rod setting is in the forearm, and it includes first end and second end, and first end is provided with first joint bearing, and the second is served and is provided with second joint bearing, first end through first joint bearing with the installation piece is connected, the second end through second joint bearing with the connecting piece is fixed.

2. The electric wheelchair as claimed in claim 1, further comprising a first connecting shaft, wherein the front arm is provided with a first mounting hole penetrating through both sides, and the first connecting shaft passes through the first mounting hole to fix the front arm to the mounting block.

3. The electric wheelchair as claimed in claim 1, further comprising a second connecting shaft, wherein a second mounting hole is provided on the connecting member, and the second connecting shaft passes through the second mounting hole to mount an end of a forearm on the connecting member.

4. The electrically propelled wheelchair as claimed in claim 1, wherein the lower bottom surface of the connecting member is disposed as a horizontal surface which is rotatably fixedly connected to the upper end surface of the front fork.

5. The electrically propelled wheelchair as claimed in claim 2, wherein the mounting block is a porous plate-like structure including at least a first through hole, a second through hole and a third through hole, the first through hole is engaged with the first mounting hole and fixedly mounted through the first connecting shaft, the second through hole is mounted with the shock absorber, and the third through hole is fixedly mounted with the connecting rod.

6. The electrically powered wheelchair as recited in claim 2, wherein the first connecting shaft is a rotatably connected pin.

7. The electrically powered wheelchair as claimed in claim 3, wherein the second connecting shaft is a rotatably connected pin.