CN107399291A - Negative pressure chassis and the dolly with negative pressure chassis - Google Patents
Negative pressure chassis and the dolly with negative pressure chassis Download PDFInfo
- Publication number
- CN107399291A CN107399291A CN201710807394.5A CN201710807394A CN107399291A CN 107399291 A CN107399291 A CN 107399291A CN 201710807394 A CN201710807394 A CN 201710807394A CN 107399291 A CN107399291 A CN 107399291A
- Authority
- CN
- China
- Prior art keywords
- chassis
- negative pressure
- sealed chamber
- extractor fan
- dolly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 125000004122 cyclic group Chemical group 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/13—Roll-over protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D37/00—Stabilising vehicle bodies without controlling suspension arrangements
- B62D37/02—Stabilising vehicle bodies without controlling suspension arrangements by aerodynamic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0002—Type of accident
- B60R2021/0018—Roll-over
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of negative pressure chassis and the dolly with negative pressure chassis, it is related to chassis field, including chassis and the sealed chamber that is fixed on the lower surface of chassis；The lower end of the sealed chamber is in hatch frame；Extractor fan is additionally provided with above the chassis, the air inlet of extractor fan connects with sealed chamber.Normal pressure suffered by chassis can be significantly increased without increasing quality in the present invention, increase the frictional force on chassis with this so as to improve chassis stability.
Description
Technical field
The present invention relates to chassis field, in particular to a kind of negative pressure chassis and the dolly with negative pressure chassis.
Background technology
With highway, overpass, expressway Fast Construction, vehicle can reach very high under more road conditions
Travel speed.However, for security reasons, the travel speed of vehicle is by many limitations, especially for one
A little microminiature vehicles, even if there are very open road conditions, and preferable engine, higher speed should not be also reached, because
Vehicle is during running at high speed, once direction has offset, caused centrifugal force is also very huge, due to dilly
Chassis weight is limited, and the kinetic force of friction that can be provided is limited, easily causes vehicle slip, can turn on one's side, cause when serious
Severe traffic accidents.
Currently in order to improving the stability of vehicle chassis, can be improved using the frictional force on increase tire and ground, such as
It is improved from tire material, structure, tire pressure and increase car weight etc., also increases because tire bears the load from car weight
Add, so excessively curved speed, braking distance, acceleration be all without making moderate progress, in fact overall performance on the contrary can be because
Degenerated for the increase of car weight, therefore the mode of these increase tires and frictional ground force can only improve the stabilization on chassis by a small margin
Property.
The content of the invention
It is an object of the invention to provide one kind to make chassis to be significantly increased suffered by chassis under identical tire conditions
Normal pressure without increasing quality, with this increases the frictional force on chassis so as to improve the negative pressure chassis of chassis stability and with negative pressure
The dolly on chassis, to solve the problems, such as chassis stability difference.
To realize the object of the invention, the technical scheme that uses for：Negative pressure chassis, including chassis and it is fixed on chassis lower surface
On sealed chamber；The lower end of the sealed chamber is in hatch frame；Extractor fan, extractor fan are additionally provided with above the chassis
Air inlet connected with sealed chamber.
Further, the sealed chamber includes being vertically mounted on multiple coaming plates on the lower surface of chassis, and multiple coaming plates according to
Secondary connection forms cyclic structure.
Further, the lower end of multiple coaming plates is respectively connected with flexible edge.
Further, the extractor fan is at least 1, and center of multiple extractor fans along chassis is circumferentially uniform
Arrangement.
Further, the extractor fan is ducted fan.
Further, the extractor fan and sealed chamber are respectively positioned at the center on chassis.
Further, be additionally provided with controller and battery on the chassis, and battery and extractor fan with control
Device electrically connects.
Dolly with negative pressure chassis, including above-mentioned negative pressure chassis, the rear end on the chassis are also supported with rear wheel, chassis
Front end it is be hinged be provided with front vehicle wheel, and the steering mechanism that driving front vehicle wheel rotates is additionally provided with chassis.
Further, the steering mechanism includes the steering motor being arranged on chassis, and on the output shaft of steering motor
Steering linkage is fixedly installed, the other end and the front vehicle wheel of steering linkage are hinged；The steering motor and battery, controller electricity
Connection.
The beneficial effects of the invention are as follows,
1. by the way that extractor fan is fixed on chassis, the air inlet of fan connects with sealed chamber, enables extractor fan fast
The air taken out inside sealed chamber of speed, makes the top on chassis and the draught head formed below on chassis, and the external world above chassis is big
Air pressure produces powerful atmospheric pressure to chassis far above the air pressure below chassis, faces front truck on chassis with adding
Wheel, the frictional force between rear wheel, so as to reach the purpose for improving chassis stability, while extractor fan is by the sky in sealed chamber
Gas is extracted out towards after discharge above chassis, can be produced downward propulsive thrust, can further be increased the pressure suffered by chassis.
2. it is evacuated by be used as extractor fan out of sealed chamber from ducted fan, due to ducted fan rotating speed height, unit
Time pumping efficiency is high, can increase the pressure differential above chassis and in sealed chamber, and then make chassis by powerful atmospheric pressure
Power, while ducted fan can produce bigger exhaust propulsive thrust, and fan ring is included in duct, can both stop the pneumatic sound of fan to
Outer propagation, but it is compact-sized, safe.
3. by setting sealed chamber on the lower surface of bottom plate, the gap between chassis and ground is reduced, when reducing unit
Air inflow in interior sealed chamber, and then increase ducted fan exhaust and the difference of gap air inflow, airtight indoor low voltage is formed,
Coaming plate is surrounded into cyclic structure, due to being advantageous to reduce the overall width on chassis, improves the passing through property on chassis.
4. it is convenient to be applicable with the ground of different situations by connecting flexible edge in the lower end of coaming plate, prevent from enclosing
Plate with rough road surface with mutually colliding, so as to which improve chassis passes through performance.
5. by the way that extractor fan and sealed chamber to be arranged to the center on chassis, can make atmospheric pressure that chassis is subject to and
Extractor fan exhaust propulsive thrust can be uniformly distributed, so that chassis is more steady when moving.
Brief description of the drawings
Fig. 1 is the front view on negative pressure chassis provided by the invention；
Fig. 2 is Fig. 1 upward view；
Fig. 3 is for the topology view of the dolly with the negative pressure chassis in embodiment 2；
Fig. 4 is for the topology view of the dolly with the negative pressure chassis in embodiment 3
Mark and corresponding parts title in accompanying drawing：
1- chassis, 2- extractor fans, 3- sealed chambers, 4- coaming plates, 5a- rear wheels, 5b- front vehicle wheels, 6- batteries, 7- are turned to
Motor, 8- steering linkages, 9- controllers.
Embodiment
The present invention is described in further detail below by specific examples of the implementation and with reference to accompanying drawing.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of negative pressure chassis provided by the invention, including chassis 1 and be fixed on the lower surface of chassis 1
Sealed chamber 3；The lower end of the sealed chamber 3 is in hatch frame；The top on the chassis 1 is additionally provided with extractor fan 2, exhausting dress
2 air inlet is put to connect with sealed chamber 3.
The sealed chamber 3 includes the multiple coaming plates 4 being vertically mounted on the lower surface of chassis 1, and multiple coaming plates 4 are sequentially connected
Cyclic structure is formed, coaming plate 4 can be fixed structure, and coaming plate 4 can also be Collapsible structure, the ring-type knot that multiple coaming plates 4 are formed
Structure can be circular, triangle or polygon, and the upper end of coaming plate 4 is welded and fixed with bottom plate.
The lower end of multiple coaming plates 4 is respectively connected with flexible edge, and flexible edge can be quality of rubber materials or other are soft
Property higher material, flexible edge can be arranged on coaming plate 4 by way of injection, and flexible edge can also be direct by screw
It is fixed on coaming plate 4.
The extractor fan 2 is at least 1, and the circumferential uniformly arrangement in center of the multiple extractor fans 2 along chassis 1, makes to take out
The arrangement of wind apparatus 2 is more uniform, so that the flowing of the air quantity in hermetic seal wind is more uniform, so that the stabilization on chassis 1
Property is higher.The extractor fan 2 is ducted fan, also can be according to different service conditions using fan as extractor fan 2.It is described
Extractor fan 2 and sealed chamber 3 are respectively positioned at the center on chassis 1.
Controller 9 and battery 6 are additionally provided with chassis 1, and battery 6 is electrically connected with extractor fan 2 with controller 9
Connect, battery 6 is at least 1, and battery 6 is that controller 9 and extractor fan 2 provide electric energy, is taken out by controller 9 to control
The stopping and startup of wind apparatus 2.
Embodiment 2
As shown in figure 3, a kind of dolly with negative pressure chassis provided by the invention, including chassis 1 and it is fixed under chassis 1
Sealed chamber 3 on surface；The lower end of the sealed chamber 3 is in hatch frame；The top on the chassis 1 is additionally provided with extractor fan 2,
The air inlet of extractor fan 2 connects with sealed chamber 3.
The sealed chamber 3 includes the multiple coaming plates 4 being vertically mounted on the lower surface of chassis 1, and multiple coaming plates 4 are sequentially connected
Cyclic structure is formed, coaming plate 4 can be fixed structure, and coaming plate 4 can also be Collapsible structure, the ring-type knot that multiple coaming plates 4 are formed
Structure can be circular, triangle or polygon, and the upper end of coaming plate 4 is welded and fixed with bottom plate.
The lower end of multiple coaming plates 4 is respectively connected with flexible edge, and flexible edge can be quality of rubber materials or other are soft
Property higher material, flexible edge can be arranged on coaming plate 4 by way of injection, and flexible edge can also be direct by screw
It is fixed on coaming plate 4.
The extractor fan 2 is at least 1, and the circumferential uniformly arrangement in center of the multiple extractor fans 2 along chassis 1, makes to take out
The arrangement of wind apparatus 2 is more uniform, so that the flowing of the air quantity in hermetic seal wind is more uniform, so that the stabilization on chassis 1
Property is higher.The extractor fan 2 is ducted fan, also can be according to different service conditions using fan as extractor fan 2.It is described
Extractor fan 2 and sealed chamber 3 are respectively positioned at the center on chassis 1.
Controller 9 and battery 6 are additionally provided with chassis 1, and battery 6 is electrically connected with extractor fan 2 with controller 9
Connect, battery 6 is at least 1, and battery 6 is that controller 9 and extractor fan 2 provide electric energy, is taken out by controller 9 to control
The stopping and startup of wind apparatus 2.
The rear end on the chassis 1 is also supported with rear wheel 5a, and the front end on chassis 1 is be hinged to be provided with front vehicle wheel 5b, and chassis 1
On be additionally provided with the steering mechanism that driving front vehicle wheel 5b is rotated.
Embodiment 3
As shown in figure 4, present invention also offers a kind of dolly with negative pressure chassis, including above-mentioned negative pressure chassis, it is described
The rear end on chassis 1 is also supported with rear wheel 5a, and the front end on chassis 1 is be hinged to be provided with front vehicle wheel 5b, and drive is additionally provided with chassis 1
The steering mechanism that dynamic front vehicle wheel 5b is rotated；The steering mechanism includes being arranged on the One On The Chassis steering motor 7, and steering motor 7
Output shaft on be fixedly installed steering linkage 8, the other end and the front vehicle wheel 5b of steering linkage 8 are hinged；The steering motor 7 with
Battery 6, controller 9 electrically connect.It is that steering motor 7 carries out electric energy by battery 6, and controller 9 can control steering simultaneously
The rotation and stopping of motor 7.The steering mechanism can also use the driving elements such as cylinder, hydraulic cylinder to be directly driven.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. negative pressure chassis, it is characterised in that including chassis and the sealed chamber being fixed on the lower surface of chassis；Under the sealed chamber
End is in hatch frame；Extractor fan is additionally provided with above the chassis, the air inlet of extractor fan connects with sealed chamber.
2. negative pressure chassis according to claim 1, it is characterised in that the sealed chamber includes being vertically mounted on chassis following table
Multiple coaming plates on face, and multiple coaming plates are in turn connected to form cyclic structure.
3. negative pressure chassis according to claim 2, it is characterised in that the lower end of multiple coaming plates is respectively connected with flexible edge
Edge.
4. negative pressure chassis according to claim 1, it is characterised in that the extractor fan is at least 1, and multiple exhausting
The circumferential uniformly arrangement in center of the device along chassis.
5. negative pressure chassis according to claim 4, it is characterised in that the extractor fan is ducted fan.
6. negative pressure chassis according to claim 1, it is characterised in that the extractor fan and sealed chamber are respectively positioned on chassis
At center.
7. negative pressure chassis according to claim 1, it is characterised in that be additionally provided with controller and electric power storage on the chassis
Pond, and battery is electrically connected with the controller with extractor fan.
8. the dolly with negative pressure chassis, it is characterised in that including the negative pressure chassis in claim 1 to 7.
9. the dolly according to claim 8 with negative pressure chassis, it is characterised in that the rear end on the chassis is also supported with
Rear wheel, the front end on chassis is be hinged to be provided with front vehicle wheel, and the steering mechanism that driving front vehicle wheel rotates is additionally provided with chassis.
10. the dolly with negative pressure chassis, it is characterised in that including the negative pressure chassis in claim 7；The rear end on the chassis
Rear wheel is also supported with, the front end on chassis is be hinged to be provided with front vehicle wheel, and turn that driving front vehicle wheel rotates is additionally provided with chassis
To mechanism；The steering mechanism includes the steering motor being arranged on chassis, and is fixedly installed on the output shaft of steering motor
Steering linkage, the other end and the front vehicle wheel of steering linkage are hinged；The steering motor electrically connects with battery, controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807394.5A CN107399291A (en) | 2017-09-08 | 2017-09-08 | Negative pressure chassis and the dolly with negative pressure chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807394.5A CN107399291A (en) | 2017-09-08 | 2017-09-08 | Negative pressure chassis and the dolly with negative pressure chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107399291A true CN107399291A (en) | 2017-11-28 |
Family
ID=60397814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710807394.5A Pending CN107399291A (en) | 2017-09-08 | 2017-09-08 | Negative pressure chassis and the dolly with negative pressure chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107399291A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861004A (en) * | 2019-12-06 | 2020-03-06 | 成都蜀工机械制造有限公司 | Wall-climbing type shot blasting robot |
| WO2021076646A1 (en) * | 2019-10-15 | 2021-04-22 | Ktisis, Llc | Vehicle traction enhancement system |
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|---|---|---|---|---|
| JP2007253890A (en) * | 2006-03-24 | 2007-10-04 | Stella Giken Kk | Wall surface suction type traveling device |
| CN101293541A (en) * | 2008-03-31 | 2008-10-29 | 浙江大学 | Telecontrol wall-climbing cleaning robot |
| CN101391625A (en) * | 2008-11-04 | 2009-03-25 | 中国人民解放军空军工程大学 | Wall climbing robot |
| CN102233798A (en) * | 2011-04-08 | 2011-11-09 | 北京林业大学 | Amphibious electric vehicle |
| CN205886221U (en) * | 2016-08-02 | 2017-01-18 | 许永策 | Wall car is climbed to toy |
| CN207311359U (en) * | 2017-09-08 | 2018-05-04 | 四川荷福创品机器人科技有限公司 | Negative pressure chassis and the trolley with negative pressure chassis |
-
2017
- 2017-09-08 CN CN201710807394.5A patent/CN107399291A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007253890A (en) * | 2006-03-24 | 2007-10-04 | Stella Giken Kk | Wall surface suction type traveling device |
| CN101293541A (en) * | 2008-03-31 | 2008-10-29 | 浙江大学 | Telecontrol wall-climbing cleaning robot |
| CN101391625A (en) * | 2008-11-04 | 2009-03-25 | 中国人民解放军空军工程大学 | Wall climbing robot |
| CN102233798A (en) * | 2011-04-08 | 2011-11-09 | 北京林业大学 | Amphibious electric vehicle |
| CN205886221U (en) * | 2016-08-02 | 2017-01-18 | 许永策 | Wall car is climbed to toy |
| CN207311359U (en) * | 2017-09-08 | 2018-05-04 | 四川荷福创品机器人科技有限公司 | Negative pressure chassis and the trolley with negative pressure chassis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021076646A1 (en) * | 2019-10-15 | 2021-04-22 | Ktisis, Llc | Vehicle traction enhancement system |
| CN110861004A (en) * | 2019-12-06 | 2020-03-06 | 成都蜀工机械制造有限公司 | Wall-climbing type shot blasting robot |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171128 |