CN117231673A - Six-wheel cushioning base structure and wheelchair thereof - Google Patents
Six-wheel cushioning base structure and wheelchair thereof Download PDFInfo
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- CN117231673A CN117231673A CN202311212394.2A CN202311212394A CN117231673A CN 117231673 A CN117231673 A CN 117231673A CN 202311212394 A CN202311212394 A CN 202311212394A CN 117231673 A CN117231673 A CN 117231673A
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- 239000006096 absorbing agent Substances 0.000 claims abstract description 23
- 230000035939 shock Effects 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000008030 elimination Effects 0.000 claims abstract description 8
- 238000003379 elimination reaction Methods 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 4
- 238000013016 damping Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000011065 in-situ storage Methods 0.000 description 1
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Abstract
The invention provides a six-wheel cushioning base structure and a wheelchair thereof, comprising a chassis bracket, two moving parts, a rocker arm connecting shaft and a transverse crossed rocker arm assembly; the side part of the chassis bracket is provided with a rocker arm connecting shaft which is rotationally connected with a transverse crossed rocker arm assembly; two moving parts with the same symmetrical structure are connected to two sides of the transverse crossed rocker arm assembly; one of the moving parts comprises a right front driven wheel, a right front longitudinal rocker arm assembly, a right driving wheel, a right rear shock absorber, a right rear driven wheel and a right rear longitudinal rocker arm assembly; any one or more of the right front driven wheel, the right driving wheel and the right rear driven wheel of one moving piece are lifted, and the other moving piece is driven to be lifted in a crossed way through a transverse crossed rocker arm assembly to realize conversion torque elimination; the invention can greatly alternate conversion and change along with the fluctuation of the ground, so that all wheels at high and low positions can always drive by being attached to the ground, the ground is uniformly pressed and gripped, and flexible and rapid driving on uneven ground with extremely large height difference is realized.
Description
Technical Field
The invention relates to the technical field of wheelchair equipment, in particular to a six-wheel cushioning base structure and a wheelchair thereof.
Background
Wheelchairs are devices used to assist mobility of persons with impaired mobility; it is generally composed of a cushion, two large wheels and two auxiliary universal wheels; the wheelchair can be manually or electrically operated, a user needs to move the wheelchair by hand pushing, and the electric wheelchair is powered by a battery; wheelchair designs are intended to provide comfort and convenience for persons with limited mobility to participate in social activities more independently. It can be used in various environments such as home, office, public places, etc. In summary, wheelchairs are an important aid that improves the quality of life of mobility impaired individuals, enabling them to move more freely and participate in social activities.
The existing electric wheelchair is characterized in that universal wheels are generally arranged in front and also arranged in the back, but cannot turn round in one hundred percent in situ no matter whether the universal wheels are arranged in front or behind, the wheelchair wheels are generally fixedly arranged on a plane, wheels are suspended when the wheelchair runs on uneven ground with small uneven difference, and driving force is lost if the wheelchair wheels are driven. Some existing wheelchairs are provided with spiral damping springs, but because the size of the wheelchairs is small, the structural space is small, and a large and effective damping device is basically not arranged in proper space, the damping device is very tiny, the corresponding damping stroke is very small, the damping effect is very small, the defects of the wheelchairs are that the wheelchairs are difficult to run on uneven terrain or span very small obstacles, the wheelchairs are also often subjected to torsion action to be tired and damaged, the service life of the wheelchairs is shortened, the use range of the wheelchairs and the movable space of disabled persons are limited, and the life quality of disabled persons is reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a six-wheel cushioning base structure and a wheelchair thereof, which can solve the existing problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention is realized by the following technical scheme: a six-wheel cushioning base structure comprises a chassis bracket, two moving parts, a rocker arm connecting shaft and a transverse crossed rocker arm assembly; the side part of the chassis support is provided with a rocker arm connecting shaft which is rotationally connected with a transverse crossed rocker arm assembly; two moving parts with the same symmetrical structure are connected to two sides of the transverse crossed rocker arm assembly;
one of the moving parts comprises a right front driven wheel, a right front longitudinal rocker arm assembly, a right driving wheel, a right rear shock absorber, a right rear driven wheel and a right rear longitudinal rocker arm assembly; the side part of the chassis bracket is rotationally connected with a right front longitudinal rocker arm assembly, and two ends of the right front longitudinal rocker arm assembly are respectively connected with a right front driven wheel and a right driving wheel; one side of the right rear longitudinal rocker arm assembly is connected with the transverse cross rocker arm assembly, and the other side of the right rear longitudinal rocker arm assembly is connected with the right rear driven wheel; the right rear longitudinal rocker arm assembly is connected with the right front longitudinal rocker arm assembly through a right rear shock absorber; any one or more of the right front driven wheel, the right driving wheel and the right rear driven wheel of one moving piece are lifted, and the other moving piece is driven to be lifted in a crossed manner through the transverse crossed rocker arm assembly to realize conversion torque elimination.
Further, the right front longitudinal rocker arm assembly comprises a first supporting arm, a first connecting rod, a rotating shaft and a first vertical rod, wherein the rotating shaft penetrates through the chassis bracket, one end of the rotating shaft is connected with the first vertical rod, and the other end of the rotating shaft is connected with the first connecting rod; one end of the first connecting rod is connected with a right driving wheel; the other end of the first connecting rod is connected with a first supporting arm which is connected with a right front driven wheel.
Further, the right rear longitudinal rocker arm assembly comprises a linkage assembly, a second vertical rod, a second connecting rod and a second supporting arm; the chassis support is rotationally connected with a second vertical rod, and the second vertical rod is rotationally connected with the transverse crossed rocker arm assembly through a linkage assembly; the second vertical rod is connected with the first vertical rod through a right rear shock absorber; the side part of the second vertical rod is connected with a second connecting rod, the end part of the second connecting rod is connected with a second supporting arm, and the second supporting arm is connected with a right rear driven wheel.
Further, the right rear shock absorber comprises a first connector, a first limiting ring, a spring, a plug rod, a sleeve, a second limiting ring and a second connector; the first connector is connected with the second vertical rod, and the side part of the first connector is connected with the first limiting ring; the side part of the first limiting ring is connected with an inserting rod, and the inserting rod is inserted into the sleeve; the outside of the inserted link and the sleeve is provided with a spring, and the side part of the sleeve is provided with a second limiting ring; the lateral part of second spacing ring is connected the second connector, the first montant is connected to the second connector.
Further, the linkage assembly comprises a first rotating head, a linkage rod and a second rotating head, the second vertical rod is rotationally connected with the first rotating head, and the transverse crossed rocker arm assembly is rotationally connected with the second rotating head; and the first rotating head and the second rotating head are connected with a linkage rod through threads.
Furthermore, the sections of the first support arm and the second support arm are of L-shaped structures, and the bending positions of the first support arm and the second support arm are of arc-shaped structures.
Further, the other moving piece comprises a left front driven wheel, a left front longitudinal rocker arm assembly, a left driving wheel, a left rear shock absorber, a left rear longitudinal rocker arm assembly and a left rear driven wheel; the side part of the chassis support is rotationally connected with a left front longitudinal rocker arm assembly, and two ends of the left front longitudinal rocker arm assembly are respectively connected with a left front driven wheel and a left driving wheel; one side of the left rear longitudinal rocker arm assembly is connected with the transverse cross rocker arm assembly, and the other side of the left rear longitudinal rocker arm assembly is connected with the left rear driven wheel; the left rear longitudinal rocker arm assembly is connected with the left front longitudinal rocker arm assembly through a left rear shock absorber; any one or more of the left front driven wheel, the left driving wheel and the left rear driven wheel of the other moving piece are lifted, and one of the moving pieces is driven to be lifted in a crossed manner through the transverse crossed rocker arm assembly to realize conversion torque elimination.
A wheelchair comprising a base structure as described above, a seat assembly, a battery and a foot pedal; the top of the base structure is connected with the seat assembly, and the side part of the base structure is provided with a battery and a pedal.
Compared with the prior art, the invention has the beneficial effects that:
therefore, when the wheelchair chassis structure runs on uneven terrain, a single wheel, two wheels or three wheels on any side of the wheelchair can cross and lift the wheelchair wheels on the corresponding positions on the other side of the wheelchair under the driving of the longitudinal rocker arm assembly and the transverse cross rocker arm assembly when the wheelchair is in obstacle, so that the wheelchair can synchronously lift along with uneven ground, the vertical lifting of the wheelchair wheels can be realized passively, the change of the vertical lifting of the wheelchair wheels along with the fluctuation of the ground can be realized greatly, the wheels at all the high and low positions can always be in contact with the ground to run, the contact and pressing grip force on the ground is basically uniform, the wheelchair can flexibly and rapidly run on uneven ground with extremely large height difference without too bump, and the driving safety and comfort and the quick passing capability of the wheelchair on various terrain adaptability are greatly improved.
Drawings
The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are for purposes of illustration only and are not intended to limit the scope of the present invention in which like reference numerals are used to designate like parts. Wherein:
FIG. 1 is a schematic diagram of the overall structure of a six-wheel cushioning base structure in a top view;
FIG. 2 is a schematic side view of a base structure according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a right rear shock absorber according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1 according to the embodiment of the present invention;
FIG. 5 is a schematic view of the overall structure of a wheelchair according to an embodiment of the present invention;
FIG. 6 is a schematic view of a wheelchair according to an embodiment of the present invention;
FIG. 7 is a schematic view of a wheelchair according to a second embodiment of the present invention;
FIG. 8 is a schematic structural view of a wheelchair according to a third embodiment of the present invention;
FIG. 9 is a schematic structural view of a wheelchair according to a fourth embodiment of the present invention;
FIG. 10 is a schematic structural view of a wheelchair according to a fifth embodiment of the present invention;
FIG. 11 is a schematic view showing a wheelchair partially constructed according to an embodiment of the present invention.
The reference numerals in the drawings indicate: 1. a foot pedal; 2. a battery; 3. a chassis support; 4. a right front driven wheel; 5. a right front longitudinal rocker arm assembly; 51. a first support arm; 52. a first link; 53. a rotation shaft; 54. a first vertical rod; 6. a right driving wheel; 7. a right rear shock absorber; 71. a first connector; 72. a first stop collar; 73. a spring; 74. a rod; 75. a sleeve; 76. a second limiting ring; 77. a second connector; 8. a right rear driven wheel; 9. a right rear longitudinal rocker arm assembly; 91. a linkage assembly; 911. a first rotary head; 912. a linkage rod; 913. a second rotary head; 92. a second vertical rod; 93. a second link; 94. a second support arm; 10. a left front driven wheel; 11. a left front longitudinal rocker arm assembly; 12. a left driving wheel; 13. the rocker arm is connected with the shaft; 14. a transverse crossover rocker arm assembly; 15. a left rear shock absorber; 16. a left rear longitudinal rocker arm assembly; 17. a left rear driven wheel; 18. a seat assembly.
Detailed Description
It is to be understood that, according to the technical solution of the present invention, those skilled in the art may propose various alternative structural modes and implementation modes without changing the true spirit of the present invention. Accordingly, the following detailed description and drawings are merely illustrative of the invention and are not intended to be exhaustive or to limit the invention to the precise form disclosed.
A six-wheel cushioning base structure, as shown in figures 1 and 2, comprises a chassis bracket 3, two moving parts, a rocker arm connecting shaft 13 and a transverse crossed rocker arm assembly 14; the side part of the chassis bracket 3 is provided with a rocker arm connecting shaft 13, and the rocker arm connecting shaft 13 is rotationally connected with a transverse crossed rocker arm assembly 14; specifically, the rocker arm connecting shaft 13 is positioned at the central axis of the chassis bracket 3, and the rocker arm connecting shaft 13 penetrates through the transverse crossed rocker arm assembly 14 and is rotationally connected with the transverse crossed rocker arm assembly; two moving parts with the same symmetrical distribution are connected to the two sides of the transverse crossed rocker arm assembly 14;
one of the moving parts comprises a right front driven wheel 4, a right front longitudinal rocker arm assembly 5, a right driving wheel 6, a right rear shock absorber 7, a right rear driven wheel 8 and a right rear longitudinal rocker arm assembly 9; the side part of the chassis bracket 3 is rotationally connected with a right front longitudinal rocker arm assembly 5, and two ends of the right front longitudinal rocker arm assembly 5 are respectively connected with a right front driven wheel 4 and a right driving wheel 6; specifically, the right front longitudinal rocker arm assembly 5 includes a first support arm 51, a first connecting rod 52, a rotation shaft 53 and a first vertical rod 54, the rotation shaft 53 penetrates through the chassis bracket 3, the rotation shaft 53 is rotationally connected with the chassis bracket 3, one end of the rotation shaft 53 is connected with the first vertical rod 54, the rotation shaft 53 is vertically arranged with the first vertical rod 54, and the other end of the rotation shaft 53 is connected with the first connecting rod 52; the first connecting rod 52 adopts a structure of a shape like a Chinese character 'kou' with an opening at the side part; as shown in fig. 11, one end of the first link 52 is connected to the right driving wheel 6; the other end of the first connecting rod 52 is connected with a first supporting arm 51, and the first supporting arm 51 is connected with the right front driven wheel 4;
one side of the right rear longitudinal rocker arm assembly 9 is connected with a transverse cross rocker arm assembly 14, and the other side of the right rear longitudinal rocker arm assembly 9 is connected with a right rear driven wheel 8; the right rear longitudinal rocker arm assembly 9 is connected with the right front longitudinal rocker arm assembly 5 through a right rear shock absorber 7; specifically, the right rear longitudinal rocker arm assembly 9 includes a linkage assembly 91, a second vertical rod 92, a second connecting rod 93 and a second supporting arm 94; the chassis bracket 3 is rotatably connected with a second vertical rod 92, and the second vertical rod 92 is rotatably connected with the transverse crossed rocker arm assembly 14 through a linkage assembly 91; the second vertical rod 92 is connected with the first vertical rod 54 through the right rear shock absorber 7; the side part of the second vertical rod 92 is connected with a second connecting rod 93, the second connecting rod 93 and the second connecting rod are integrally formed, the end part of the second connecting rod 93 is connected with a second supporting arm 94, and the second supporting arm 94 is connected with the right rear driven wheel 8; any one or more of the right front driven wheel 4, the right driving wheel 6 and the right rear driven wheel 8 of one moving member is lifted, and the other moving member is driven to be lifted in a crossed manner through the transverse crossed rocker arm assembly 14 to realize conversion torque elimination.
In addition, in the present invention, the cross sections of the first support arm 51 and the second support arm 94 are both in an L-shaped structure, and the bending positions of the first support arm 51 and the second support arm 94 are in an arc-shaped structure.
The other moving part comprises a left front driven wheel 10, a left front longitudinal rocker arm assembly 11, a left driving wheel 12, a left rear shock absorber 15, a left rear longitudinal rocker arm assembly 16 and a left rear driven wheel 17; the side part of the chassis bracket 3 is rotationally connected with a left front longitudinal rocker arm assembly 11, and two ends of the left front longitudinal rocker arm assembly 11 are respectively connected with a left front driven wheel 10 and a left driving wheel 12; one side of the left rear longitudinal rocker arm assembly 16 is connected with the transverse cross rocker arm assembly 14, and the other side of the left rear longitudinal rocker arm assembly 16 is connected with the left rear driven wheel 17; the left rear longitudinal rocker arm assembly 16 is connected with the left front longitudinal rocker arm assembly 11 through a left rear shock absorber 15; any one or more of the left front driven wheel 10, the left driving wheel 12 and the left rear driven wheel 17 of the same other moving piece is lifted, and the transverse crossed rocker arm assembly 14 drives one of the moving pieces to be lifted in a crossed manner so as to realize conversion torque elimination; the other moving member has the same specific structure, connection relationship and positional relationship as those of the one moving member, and is only summarized here and will not be described in detail.
In order to buffer the driven wheel or the driving wheel during lifting, the right rear shock absorber 7 comprises a first connector 71, a first limiting ring 72, a spring 73, a plug rod 74, a sleeve 75, a second limiting ring 76 and a second connector 77; as shown in fig. 3, the first connecting head 71 is connected to the second vertical rod 92, and a side portion of the first connecting head 71 is connected to the first limiting ring 72; the side part of the first limiting ring 72 is connected with a plug rod 74, and the plug rod 74 is inserted into a sleeve 75; the outside of the inserted link 74 and the sleeve 75 is provided with a spring 73, and the side part of the sleeve 75 is provided with a second limiting ring 76; the side part of the second limiting ring 76 is connected with a second connector 77, and the second connector 77 is connected with the first vertical rod 54.
In order to facilitate the disassembly and assembly of the linkage assembly 91, the linkage assembly 91 comprises a first rotating head 911, a linkage rod 912 and a second rotating head 913, as shown in fig. 4, the second vertical rod 92 is rotatably connected to the first rotating head 911, and the transverse cross rocker arm assembly 14 is rotatably connected to the second rotating head 913; the first rotating head 911 and the second rotating head 913 are connected with a linkage rod 912 by screw threads, and the connection or the disassembly of the first rotating head 911 and the second rotating head 913 can be completed by rotating the linkage rod 912.
A wheelchair, as shown in fig. 5, comprises the base structure, the seat assembly 18, the battery 2 and the foot pedal 1; the top end of the base structure is connected with a seat assembly 18, and the side part of the base structure is provided with a battery 2 and a pedal plate 1; the battery 2 is connected to the left driving wheel 12 and the right driving wheel 6, and the battery 2 provides power for the two driving wheels.
When the wheelchair of the invention is used, as shown in fig. 6, in an exemplary use state one, when the right front driven wheel 4 of the wheelchair passes through an obstacle, the right front driven wheel 4 rises to be attached to the obstacle after crossing the obstacle, the rotating shaft 53 of the right front longitudinal rocker arm assembly 5 rotates, when the rotating shaft 53 rotates, the right driving wheel 6 is pressed down to enable the right driving wheel 6 to be attached to the ground, meanwhile, the first vertical rod 54 synchronously rotates, the right rear shock absorber 7 is compressed, the second vertical rod 92 is pushed to rotate in the same direction as the first vertical rod 54, the right rear driven wheel 8 is pressed to be attached to the ground tightly, at the moment, the second vertical rod 92 pulls the transverse crossed rocker arm assembly 14 to rotate around the rocker arm connecting shaft 13 through the linkage assembly 91, namely, the right end of the transverse crossed rocker arm assembly 14 rotates backwards, the left end rotates forwards (the direction provided with a pedal is taken as the front end, the left hand side is left side, and the right hand side is taken as the left side) of the seat assembly 18; when the left end rotates forwards, the left rear driven wheel 17 is driven to move upwards through the left rear longitudinal rocker arm assembly 16, meanwhile, the left front driven wheel 10 is pressed downwards, the left driving wheel 12 is lifted, the cross lifting of the two moving parts is realized, the balance of the wheelchair is kept, and the posture of the wheelchair is changed to slightly lean backwards and slightly lean to the left side;
and the use state II: as shown in fig. 7, when the left front driven wheel 10 and the right driving wheel 6 of the wheelchair cross over the obstacle, the left front driven wheel 10 and the right driving wheel 6 are lifted, the left front driven wheel 10 is tightly attached to the obstacle, the left end of the transverse cross rocker arm assembly 14 is pushed by the left front longitudinal rocker arm assembly 11 to have a backward rotation trend, when the right driving wheel 6 is tightly attached to the obstacle, the right end of the transverse cross rocker arm assembly 14 is driven by the right front longitudinal rocker arm assembly 5 to have a backward rotation trend, and as the lifting heights of the two sides of the wheelchair are the same, the two sides of the transverse cross rocker arm assembly 14 are stressed the same, no rotation occurs at the moment, and the posture of the wheelchair is balanced left and right, and slightly leans back;
and the use state is three: as shown in fig. 8, when the right rear driven wheel 8, the left front driven wheel 10 and the left driving wheel 12 are lifted up beyond the obstacle, when the right rear driven wheel 8 is lifted up, the right rear longitudinal rocker arm assembly 9 rotates to push the right end of the transverse cross rocker arm assembly 14 to rotate forwards, and simultaneously when the left front driven wheel 10 and the left driving wheel 12 are lifted up, the left end of the transverse cross rocker arm assembly 14 rotates backwards, so that the cross lifting function is realized, and the front and rear of the wheelchair is kept balanced when in the posture because the cross lifting heights are the same;
and the use state is four: as shown in fig. 9, when the right front driven wheel 4, the left front driven wheel 10 and the left rear driven wheel 17 of the wheelchair are over the obstacle, the right front driven wheel 4 is lifted to push the right end of the transverse cross rocker arm assembly 14 to rotate backwards through the right front longitudinal rocker arm assembly 5, and when the left rear driven wheel 17 is lifted, the left end of the transverse cross rocker arm assembly 14 is caused to rotate forwards, so that the cross lifting function is realized, and at the moment, the wheelchair posture becomes slightly leaned backwards and slightly leaned to the right side;
use state five: as shown in fig. 10, when the right rear driven wheel 8 and the left rear driven wheel 17 of the wheelchair are over the obstacle, the right rear longitudinal rocker arm assembly 9 rotates and the left rear longitudinal rocker arm assembly 16 rotates due to the same lifting height, and at this time, the transverse crossed rocker arm assembly 14 does not rotate, and the wheelchair is slightly tilted forward left and right in a balanced manner in the posture.
The wheelchair of the invention can passively realize longitudinal or cross along with the fluctuation of the rugged ground when the wheelchair wheel moves vertically, and can synchronously convert torque elimination when the single wheel or two or three wheels vertically lift; the invention can realize the following steps: 1. the wheel lifting mechanism has the advantages that any wheelchair wheel can run on uneven ground with large height difference, the vertical lifting movement of the wheel can change along with the fluctuation of the ground, any single wheel or double wheels or even three wheels can synchronously run to lift or lower the wheel without influencing the supporting and grabbing force of any other wheel on the ground, all wheels can always be attached to the ground to run without suspension, the wheel can run quickly without too large jolt, and one hundred percent of turning can be realized. 2. The loads of the wheels can be mutually converted along with the fluctuation of uneven ground, so that the loads of the wheels at different positions are always kept basically balanced, and the wheelchair can stably and safely run on the uneven ground. 3. Because the wheel vertical lifting and lowering interconversion intersection point is arranged between the wheel vertical lifting and lowering interconversion intersection point and the wheel vertical lifting and lowering interconversion intersection point, any wheel can travel to a high position, the body of the wheelchair cannot be excessively inclined due to the lifting of any wheel in the vertical lifting and lowering interconversion height range, and the inclination angle of the wheelchair is reduced by half compared with the prior art in society by the crossed lifting and lowering technology, so that the wheelchair travels on uneven terrain, and has certain safety, comfort and stability. 4. Because the load can also be changed with each other passively along with the fluctuation of the uneven ground, the load of any single wheel can not be increased gradually along with the rise of the wheel when the obstacle surmounting rises, and compared with the prior art, the load is reduced gradually on the contrary, which means that the obstacle surmounting rise of any single wheel is not laborious and can be as easy as the running on a flat road. 5. The wheelchair structure enables wheels to run on uneven ground with certain flexibility, reduces consumption and damage caused by torsion, increases the duration of the wheelchair, prolongs the service life of the wheelchair, and improves the smooth and comfortable safety and quick passing capability of the wheelchair for adaptive running of multiple conditions.
Therefore, when the wheelchair chassis structure runs on uneven terrain, a single wheel, two wheels or three wheels on any side of the wheelchair can cross and lift the wheelchair wheels on the corresponding positions on the other side of the wheelchair under the driving of the longitudinal rocker arm assembly and the transverse cross rocker arm assembly when the wheelchair is in obstacle, so that the wheelchair can synchronously lift along with uneven ground, the vertical lifting of the wheelchair wheels can be realized passively, the change of the vertical lifting of the wheelchair wheels along with the fluctuation of the ground can be realized greatly, the wheels at all the high and low positions can always be in contact with the ground to run, the contact and pressing grip force on the ground is basically uniform, the wheelchair can flexibly and rapidly run on uneven ground with extremely large height difference without too bump, and the driving safety and comfort and the quick passing capability of the wheelchair on various terrain adaptability are greatly improved.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a number" is two or more, unless explicitly defined otherwise.
The technical scope of the present invention is not limited to the above description, and those skilled in the art may make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and these changes and modifications should be included in the scope of the present invention.
Claims (8)
1. Six rounds of bradyseism base structures, its characterized in that: comprising
The device comprises a chassis bracket (3), two moving parts, a rocker arm connecting shaft (13) and a transverse crossed rocker arm assembly (14); a rocker arm connecting shaft (13) is arranged at the side part of the chassis support (3), and the rocker arm connecting shaft (13) is rotationally connected with a transverse crossed rocker arm assembly (14); two moving parts with the same symmetrical structure are connected to two sides of the transverse crossed rocker arm assembly (14);
one of the moving parts comprises a right front driven wheel (4), a right front longitudinal rocker arm assembly (5), a right driving wheel (6), a right rear shock absorber (7), a right rear driven wheel (8) and a right rear longitudinal rocker arm assembly (9); the side part of the chassis bracket (3) is rotationally connected with a right front longitudinal rocker arm assembly (5), and two ends of the right front longitudinal rocker arm assembly (5) are respectively connected with a right front driven wheel (4) and a right driving wheel (6); one side of the right rear longitudinal rocker arm assembly (9) is connected with a transverse cross rocker arm assembly (14), and the other side of the right rear longitudinal rocker arm assembly (9) is connected with a right rear driven wheel (8); the right rear longitudinal rocker arm assembly (9) is connected with the right front longitudinal rocker arm assembly (5) through a right rear shock absorber (7); any one or more of the right front driven wheel (4), the right driving wheel (6) and the right rear driven wheel (8) of one moving part are lifted, and the other moving part is driven to be lifted in a crossed manner through a transverse crossed rocker arm assembly (14) to realize conversion torque elimination.
2. The six-wheeled cushioning base structure of claim 1, wherein: the right front longitudinal rocker arm assembly (5) comprises a first supporting arm (51), a first connecting rod (52), a rotating shaft (53) and a first vertical rod (54), wherein the rotating shaft (53) penetrates through the chassis bracket (3), one end of the rotating shaft (53) is connected with the first vertical rod (54), and the other end of the rotating shaft (53) is connected with the first connecting rod (52); one end of the first connecting rod (52) is connected with the right driving wheel (6); the other end of the first connecting rod (52) is connected with a first supporting arm (51), and the first supporting arm (51) is connected with the right front driven wheel (4).
3. The six-wheeled cushioning base structure of claim 2, wherein: the right rear longitudinal rocker arm assembly (9) comprises a linkage assembly (91), a second vertical rod (92), a second connecting rod (93) and a second supporting arm (94); the chassis bracket (3) is rotationally connected with a second vertical rod (92), and the second vertical rod (92) is rotationally connected with the transverse crossed rocker arm assembly (14) through a linkage assembly (91); the second vertical rod (92) is connected with the first vertical rod (54) through a right rear shock absorber (7); the side part of the second vertical rod (92) is connected with a second connecting rod (93), the end part of the second connecting rod (93) is connected with a second supporting arm (94), and the second supporting arm (94) is connected with a right rear driven wheel (8).
4. A six-wheeled cushioning base structure according to claim 3, wherein: the right rear shock absorber (7) comprises a first connector (71), a first limiting ring (72), a spring (73), a plug rod (74), a sleeve (75), a second limiting ring (76) and a second connector (77); the first connector (71) is connected with the second vertical rod (92), and the side part of the first connector (71) is connected with the first limiting ring (72); the side part of the first limiting ring (72) is connected with a plug rod (74), and the plug rod (74) is inserted into a sleeve (75); the outside of the inserted link (74) and the sleeve (75) is provided with a spring (73), and the side part of the sleeve (75) is provided with a second limiting ring (76); the side part of the second limiting ring (76) is connected with a second connector (77), and the second connector (77) is connected with the first vertical rod (54).
5. A six-wheeled cushioning base structure according to claim 3, wherein: the linkage assembly (91) comprises a first rotating head (911), a linkage rod (912) and a second rotating head (913), the second vertical rod (92) is rotationally connected with the first rotating head (911), and the transverse crossed rocker arm assembly (14) is rotationally connected with the second rotating head (913); the first rotating head (911) and the second rotating head (913) are connected with a linkage rod (912) through threads.
6. A six-wheeled cushioning base structure according to claim 3, wherein: the cross sections of the first support arm (51) and the second support arm (94) are of L-shaped structures, and bending positions of the first support arm (51) and the second support arm (94) are of arc-shaped structures.
7. A six-wheeled cushioning base structure according to any one of claims 1-6, wherein: the other moving part comprises a left front driven wheel (10), a left front longitudinal rocker arm assembly (11), a left driving wheel (12), a left rear shock absorber (15), a left rear longitudinal rocker arm assembly (16) and a left rear driven wheel (17); the side part of the chassis bracket (3) is rotationally connected with a left front longitudinal rocker arm assembly (11), and two ends of the left front longitudinal rocker arm assembly (11) are respectively connected with a left front driven wheel (10) and a left driving wheel (12); one side of the left rear longitudinal rocker arm assembly (16) is connected with the transverse cross rocker arm assembly (14), and the other side of the left rear longitudinal rocker arm assembly (16) is connected with a left rear driven wheel (17); the left rear longitudinal rocker arm assembly (16) is connected with the left front longitudinal rocker arm assembly (11) through a left rear shock absorber (15); any one or more of the left front driven wheel (10), the left driving wheel (12) and the left rear driven wheel (17) of the other moving part is lifted, and the transverse crossed rocker arm assembly (14) drives one of the moving parts to be lifted in a crossed manner so as to realize conversion torque elimination.
8. A wheelchair, characterized in that: comprising a base structure according to any one of claims 1-7, a seat assembly (18), a battery (2) and a footrest (1); the top end of the base structure is connected with a seat assembly (18), and a battery (2) and a pedal (1) are arranged on the side part of the base structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311212394.2A CN117231673A (en) | 2023-09-20 | 2023-09-20 | Six-wheel cushioning base structure and wheelchair thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311212394.2A CN117231673A (en) | 2023-09-20 | 2023-09-20 | Six-wheel cushioning base structure and wheelchair thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117231673A true CN117231673A (en) | 2023-12-15 |
Family
ID=89089139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311212394.2A Pending CN117231673A (en) | 2023-09-20 | 2023-09-20 | Six-wheel cushioning base structure and wheelchair thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117231673A (en) |
-
2023
- 2023-09-20 CN CN202311212394.2A patent/CN117231673A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhaowei Inventor after: Zhai Minzhi Inventor before: Wang Zhaowei Inventor before: Zhai Zhimin |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |