CN203609596U - Four-wheel independent suspension system of power-driven wheelchairs - Google Patents
Four-wheel independent suspension system of power-driven wheelchairs Download PDFInfo
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- CN203609596U CN203609596U CN201320593951.5U CN201320593951U CN203609596U CN 203609596 U CN203609596 U CN 203609596U CN 201320593951 U CN201320593951 U CN 201320593951U CN 203609596 U CN203609596 U CN 203609596U
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- wheel
- amortisseur
- independent suspension
- suspension system
- outer tube
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Abstract
The utility model discloses a four-wheel independent suspension system of power-driven wheelchairs. The four-wheel independent suspension system comprises a frame, two front wheels and two back wheels. Each of the front wheels and each of the back wheels are hinged on each of front connecting rods and back connecting rods respectively. A cross rod extending in vehicle width direction is arranged on the frame. Adapter sleeves in box section structure are arranged at end portion of the front connecting rods and the back connecting rods. Shock absorbers are sleeved in the adapter sleeves. Each of the shock absorbers comprises a rectangular outer tube and a rectangular inner tube. The inner tube is arranged in the outer tube and can rotate 45 degrees opposite to the outer tube. The seamed edge of the inner tube is opposite to the tube wall of the outer tube. An elastic rubber mat is arranged between the seamed edge of the outer tube and the tube wall of the inner tube. The inner tubes of the chock absorbers are sleeved on the cross rod. The front wheels and the back wheels are respectively and independently suspended on the frame via the adapter sleeves and the shock absorbers. The four-wheel independent suspension system of the power-driven wheelchairs is good in shock absorbing effect, comprehensive in shock absorbing direction and is beneficial to the miniaturization and compactness of the power-driven wheelchairs.
Description
Technical field
This utility model relates to electric wheel-chair vehicle, is the four-wheel independent suspension system of electric wheel-chair vehicle specifically.
Background technology
Electric wheel-chair vehicle is on the basis of conventional manual wheelchair, the parts transformation and upgrade such as stack high-performance Power Drive Unit, smart steering device, battery form, possesses hand control intelligent controller, nowadays, electric wheel-chair vehicle has become handicapped old people, the indispensable walking-replacing tool of people with disability.But the road not exclusively all smooth without rugged of travelling of electric wheel-chair vehicle, has and drive electric wheel-chair vehicle on pit Deng road and can bring very large vibration in injustice, is to improve the comfortableness of driving, just damping must be set and reach the object of bumper and absorbing shock.Damping in conventional art normally adopts spring structure to realize between seat cushion and vehicle frame, but the damping effect of spring structure is not fine, its damping effect generally only limits to the damping of height, and its complex structure of spring shock absorption, implementation cost is high, because spring occupies certain height space, be unfavorable for miniaturization and the densification of electric wheel-chair vehicle.
Utility model content
In order to overcome the deficiencies in the prior art, this utility model provides a kind of four-wheel independent suspension system of electric wheel-chair vehicle, and it has the features such as each wheel can independently carry out bumper and absorbing shock, and damping effect is obvious that make.
This utility model solves the technical scheme that its technical problem adopts:
The four-wheel independent suspension system of electric wheel-chair vehicle, comprise vehicle frame, two front-wheels and two trailing wheels, each front-wheel and trailing wheel are hinged on respectively on front rod and back link separately, on described vehicle frame, be provided with the cross bar extending in overall width direction, before described, the end of back link is all provided with the adapter sleeve of the tubular construction that is square, in described adapter sleeve, be equipped with amortisseur, described amortisseur comprises outer tube and the inner tube of rectangular configuration, described inner tube setting within the outer tube, inner tube is rotated 45 ° relative to outer tube and is arranged so that the seamed edge of inner tube is relative with the tube wall of outer tube, between the seamed edge of described outer tube and inner pipe wall, be provided with elastic rubber fitting, the inner tube of described amortisseur is nested with on described cross bar, and front and rear wheel is distinguished independent suspension on described vehicle frame by adapter sleeve and amortisseur.
As the improvement of technique scheme, described adapter sleeve is made up of U-shaped and clamping screw, U-shaped be nested with on described amortisseur after by two U-shaped limits of U-shaped of clamping screw attaching nut locking.
As the further improvement of technique scheme, described front rod is connected with the amortisseur that is positioned at inner side, and described back link is connected with the amortisseur that is positioned at outside, and front rod is with the front outwardly oblique extension of direction, and back link is with the oblique extension of the direction backwards.
Further, also comprise a bumper bar, the rear end of described vehicle frame is provided with the blank pipe extending towards the back lower place, and the upper end closed of blank pipe, is provided with elastic buffer unit in described blank pipe, described bumper bar part stretch in blank pipe and with described elastic buffer unit butt.
Further, the lower end of described bumper bar is provided with roller in the left and right sides of overall width direction.
Further, on two relative sidewalls of described blank pipe, be provided with bar-shaped trough, the sidewall of bumper bar is protruding with card article, and described card article snaps in described in this in bar-shaped trough.
Further, described elastic buffer unit is spring.
Preferably, the rear end of described vehicle frame is provided with the second adapter sleeve, is equipped with second amortisseur identical with described shock absorber structure in described the second adapter sleeve, and the inner tube two ends of described the second amortisseur are equipped with rocking arm, and the lower end of two rocking arms is connected with the second roller.
The beneficial effects of the utility model are: this utility model that adopts said structure, by the use of amortisseur, abandon the use of conventional art medi-spring shock-damping structure, make the four wheels of electric wheel-chair vehicle can distinguish independent suspension on vehicle frame, no matter when on the road surface that is which wheel by recessed low injustice, the connecting rod that connects this wheel can drive this to take turns and produce swing, thereby realize this and take turns the bumper and absorbing shock between vehicle frame, as far as possible little avoids transfer of vibration to vehicle frame and finally passes to seat, reduce greatly the vibration that people experiences, its damping effect is obvious, simultaneously, the structure of amortisseur makes can play cushioning effect in whole vertical plane, only has the damping effect of short transverse with respect to spring assembly, it has the features such as damping orientation is comprehensive, good damping effect, in addition, the amortisseur space shared with respect to spring vibration-damping component is little, is conducive to miniaturization and the densification of electric wheel-chair vehicle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is decomposing schematic representation of the present utility model;
Fig. 3 is the structural representation of amortisseur in this utility model;
Fig. 4 is the cutaway view of amortisseur in this utility model;
Fig. 5 is the decomposing schematic representation of this utility model in bumper bar position;
Fig. 6 is structural representation when adapter sleeve forms with clamping screw by U-shaped in this utility model;
Fig. 7～Figure 10 is the structural representation of this utility model while adopting respectively different motors to drive;
Figure 11 is structural representation when vehicle frame rear end connects the second adapter sleeve and rocking arm etc. in this utility model;
Figure 12 is the decomposition texture schematic diagram of this utility model in front wheel location.
The specific embodiment
Below in conjunction with drawings and Examples, this utility model is described in further detail.
With reference to Fig. 1～Figure 12, the four-wheel independent suspension system of electric wheel-chair vehicle of the present utility model, comprise vehicle frame 1, two front-wheels 2 and two trailing wheels 3, each front-wheel 2 and trailing wheel 3 are hinged on respectively on front rod 21 and back link 31 separately, wherein front-wheel 2 is connected with front rod 21 by connecting rod 22 as shown in figure 12, the top of connecting rod 22 is thread segment 23, after the through hole 24 that this thread segment 23 passes on front rod 21, be locked by nut 25, for reducing pivoting friction, between 24 hole wall and thread segment 23, be provided with bearing 26, on each back link 31, correspondence arranges a motor 4, and motor 4 can adopt motor as shown in fig. 1, and this motor carries electromagnetic brake, clutch is positioned at motor front portion, can adopt motor as shown in Figure 7, this motor is not with electromagnetic brake, and clutch is positioned at motor rear portion yet, or adopt hub motor as shown in Figure 8, according to the difference of motor style, its assembling mode is also different, as shown in Figure 9, or adopt gear drive as shown in figure 10, by controlling motor speed, can make the rotating speed of two trailing wheels 3 of electric wheel-chair vehicle different, thereby can realize turning to of electric wheel-chair vehicle, on described vehicle frame 1, be provided with the cross bar 11 extending in overall width direction, described front rod 21, the end of back link 31 is all provided with the adapter sleeve 5 of the tubular construction that is square, adapter sleeve 5 preferred weld or one-body molded on front rod 2 and back link 3, in described adapter sleeve 5, be equipped with amortisseur 6, described amortisseur 6 comprises outer tube 61 and the inner tube 62 of rectangular configuration, described inner tube 62 is arranged in outer tube 61, it is relative with the tube wall of outer tube 61 that inner tube 62 is rotated 45 ° of seamed edges that are arranged so that inner tube 62 relative to outer tube 61, between the seamed edge of described outer tube 61 and inner tube 62 tube walls, be provided with elastic rubber fitting 63, the inner tube 62 of described amortisseur 6 is nested with on described cross bar 11, for realizing the axial location of amortisseur 6 on cross bar 11, can banking stop 10 be set at two side positions of amortisseur 6, wherein being positioned at the banking stop 10 of inner side is welded on cross bar 11, be nested with on cross bar 11 at the banking stop 10 between two amortisseurs, be fixed by bolt 101 and the threaded iron plate 102 that is welded on cross bar 11 and be positioned at outermost banking stop 10, front-wheel 2 and trailing wheel 3 are distinguished independent suspensions on described vehicle frame 1 by adapter sleeve 5 and amortisseur 6.
In the present embodiment, adapter sleeve 5 can be integrated rectangular configuration, also can be as shown in Figure 6, formed by U-shaped 51 and clamping screw 52, after being nested with for U-shaped 51 on described amortisseur 6, locked the two U-shaped limits of U-shaped 51 by clamping screw 52 attaching nuts 53, clamping screw 52 is preferably two, and adapter sleeve 5 adopts this kind of structure, is more conducive to adapter sleeve 5 with the assembling between amortisseur 6.
In the present embodiment, described front rod 21 is connected with the amortisseur 6 that is positioned at inner side, front rod 21 is with the front outwardly oblique extension of direction, described back link 31 is connected with the amortisseur 6 that is positioned at outside, back link 31 is with the oblique extension of the direction backwards, wherein medial and lateral are to be laterally the direction that width obtains at electric wheel-chair vehicle, and front refers to using electric wheel-chair vehicle direction of advance as front, and above-mentioned syndeton is conducive to configure decelerator 4.
As the present embodiment preferably, also comprise a bumper bar 7, the rear end of described vehicle frame 1 is provided with the blank pipe 12 extending towards the back lower place, the upper end closed of blank pipe 12, in described blank pipe 12, be provided with elastic buffer unit 8, described bumper bar 7 parts stretch in blank pipe 12 and with described elastic buffer unit 8 butts, the upper end closed end butt of the upper end of elastic buffer unit 8 and blank pipe 12, the lower end of elastic buffer unit 8 with bumper bar 7 butts, wherein elastic buffer unit 8 is preferably spring, can certainly be elastic rubbery body etc.The electric wheel-chair vehicle that is arranged so that of bumper bar 7 does not turn over after the meeting; and bumper bar 7 is connected on vehicle frame 1 by elastic buffer unit 8 elasticity; make in the time that bumper bar 7 and ground bump; can make bumper bar 7 shrink buffering; one can play cushioning effect; reduce the vibration that is delivered to seat, two have also protected bumper bar 7, avoid it to fracture or serious wear.
In the present embodiment, the lower end of described bumper bar 7 is provided with roller 9 in the left and right sides of overall width direction, roller 9 the further bumper bar 7 of having protected is set, be also conducive to damping simultaneously.
In the present embodiment, on two relative sidewalls of described blank pipe 12, be provided with bar-shaped trough 13, the sidewall of bumper bar 7 is protruding with card article 71, described card article 71 snaps in described in this in bar-shaped trough 13, displacement when bar-shaped trough 13 has adapted to that bumper bar 7 is impacted, also avoids bumper bar 7 to drop out from blank pipe 12 simultaneously.
As the safety of vehicle frame rear end, also can adopt following structure: the rear end of described vehicle frame 1 is provided with the second adapter sleeve 14, in described the second adapter sleeve 14, being equipped with second amortisseur identical with described amortisseur 6 structures (is blocked by the second adapter sleeve 14, do not illustrate separately), the inner tube two ends of described the second amortisseur are equipped with rocking arm 15, the lower end of two rocking arms 15 is connected with the second roller 16, this kind of structure is in playing with the identical safety effect of above-mentioned bumper bar, its damping, buffering better effects if, the orientation of damping, buffering is larger, spring is not limited in the axial of spring relatively.
By the use of amortisseur 6 and adapter sleeve 5, abandon the use of conventional art medi-spring shock-damping structure, make the four wheels of electric wheel-chair vehicle can distinguish independent suspension on vehicle frame, no matter when on the road surface that is which wheel by recessed low injustice, the connecting rod that connects this wheel can drive this to take turns and produce swing, thereby realize this and take turns the bumper and absorbing shock between vehicle frame, as far as possible little avoids transfer of vibration to vehicle frame and finally passes to seat, reduced greatly the vibration that people experiences, its damping effect is obvious; Simultaneously, the structure of amortisseur makes can play cushioning effect in whole vertical plane, only has the damping effect of short transverse with respect to spring assembly, it has the features such as damping orientation is comprehensive, good damping effect, in addition, the amortisseur space shared with respect to spring vibration-damping component is little, is conducive to miniaturization and the densification of electric wheel-chair vehicle.
The above, be preferred embodiments of the present utility model, but this utility model is not limited to above-described embodiment, as long as it reaches technique effect of the present utility model with any same or similar means, within all should falling into protection domain of the present utility model.
Claims (8)
1. the four-wheel independent suspension system of electric wheel-chair vehicle, comprise vehicle frame, two front-wheels and two trailing wheels, each front-wheel and trailing wheel are hinged on respectively on front rod and back link separately, it is characterized in that: on described vehicle frame, be provided with the cross bar extending in overall width direction, before described, the end of back link is all provided with the adapter sleeve of the tubular construction that is square, in described adapter sleeve, be equipped with amortisseur, described amortisseur comprises outer tube and the inner tube of rectangular configuration, described inner tube setting within the outer tube, inner tube is rotated 45 ° relative to outer tube and is arranged so that the seamed edge of inner tube is relative with the tube wall of outer tube, between the seamed edge of described outer tube and inner pipe wall, be provided with elastic rubber fitting, the inner tube of described amortisseur is nested with on described cross bar, and front and rear wheel is distinguished independent suspension on described vehicle frame by adapter sleeve and amortisseur.
2. the four-wheel independent suspension system of electric wheel-chair vehicle according to claim 1, is characterized in that: described adapter sleeve is made up of U-shaped and clamping screw, U-shaped be nested with on described amortisseur after by two U-shaped limits of U-shaped of clamping screw attaching nut locking.
3. the four-wheel independent suspension system of electric wheel-chair vehicle according to claim 1 and 2, it is characterized in that: described front rod is connected with the amortisseur that is positioned at inner side, described back link is connected with the amortisseur that is positioned at outside, front rod is with the front outwardly oblique extension of direction, and back link is with the oblique extension of the direction backwards.
4. the four-wheel independent suspension system of electric wheel-chair vehicle according to claim 3, it is characterized in that: also comprise a bumper bar, the rear end of described vehicle frame is provided with the blank pipe extending towards the back lower place, the upper end closed of blank pipe, in described blank pipe, be provided with elastic buffer unit, described bumper bar part stretch in blank pipe and with described elastic buffer unit butt.
5. the four-wheel independent suspension system of electric wheel-chair vehicle according to claim 4, is characterized in that: on two relative sidewalls of described blank pipe, be provided with bar-shaped trough, the sidewall of bumper bar is protruding with card article, and described card article snaps in described in this in bar-shaped trough.
6. the four-wheel independent suspension system of electric wheel-chair vehicle according to claim 4, is characterized in that: described elastic buffer unit is spring.
7. the four-wheel independent suspension system of electric wheel-chair vehicle according to claim 4, is characterized in that: the lower end of described bumper bar is provided with roller in the left and right sides of overall width direction.
8. the four-wheel independent suspension system of electric wheel-chair vehicle according to claim 3, it is characterized in that: the rear end of described vehicle frame is provided with the second adapter sleeve, in described the second adapter sleeve, be equipped with second amortisseur identical with described shock absorber structure, the inner tube two ends of described the second amortisseur are equipped with rocking arm, and the lower end of two rocking arms is connected with the second roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593951.5U CN203609596U (en) | 2013-09-23 | 2013-09-23 | Four-wheel independent suspension system of power-driven wheelchairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593951.5U CN203609596U (en) | 2013-09-23 | 2013-09-23 | Four-wheel independent suspension system of power-driven wheelchairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203609596U true CN203609596U (en) | 2014-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320593951.5U Withdrawn - After Issue CN203609596U (en) | 2013-09-23 | 2013-09-23 | Four-wheel independent suspension system of power-driven wheelchairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203609596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445921A (en) * | 2013-09-23 | 2013-12-18 | 江门市朝扬精密制造有限公司 | Four-wheel independent suspension system of power-driven wheelchairs |
-
2013
- 2013-09-23 CN CN201320593951.5U patent/CN203609596U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445921A (en) * | 2013-09-23 | 2013-12-18 | 江门市朝扬精密制造有限公司 | Four-wheel independent suspension system of power-driven wheelchairs |
| CN103445921B (en) * | 2013-09-23 | 2016-04-20 | 江门市朝扬精密制造有限公司 | The four-wheel independent suspension system of electric wheel-chair vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140528 Effective date of abandoning: 20160420 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |