CN108749570B - Pneumatic type accelerator mistaken-stepping prevention device and vehicle - Google Patents
Pneumatic type accelerator mistaken-stepping prevention device and vehicle Download PDFInfo
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- CN108749570B CN108749570B CN201810622335.5A CN201810622335A CN108749570B CN 108749570 B CN108749570 B CN 108749570B CN 201810622335 A CN201810622335 A CN 201810622335A CN 108749570 B CN108749570 B CN 108749570B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
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- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention relates to a pneumatic accelerator mis-stepping prevention device and a vehicle. The pneumatic type accelerator mistaken-stepping prevention device comprises a cylinder with one end plugged, a piston is assembled in the cylinder in a sealing sliding mode, a pressure spring is installed in the cylinder, a gas cavity is formed between the piston and the cylinder, a gas channel communicated with the inside and the outside is formed in the cavity wall of the gas cavity, a seal head capable of moving relative to the opening of the gas channel and plugging and yielding the gas channel is arranged in the gas cavity, the seal head is arranged in the cylinder through an elastic supporting structure, when the piston and the cylinder do not move or move relatively slowly, the elastic supporting structure provides the seal head with supporting force for overcoming the air pressure difference and enabling an air gap to be formed between the seal head and the opening of the gas channel, and when the piston and the cylinder move rapidly and oppositely, instantly increased air pressure is provided for the seal head with acting force for overcoming the elastic force of the elastic supporting structure and plugging the gas channel. When the driver steps on the accelerator suddenly, the gas pressure in the gas chamber resists the force of the driver stepping on the accelerator, so that the accelerator pedal cannot go down continuously.
Description
Technical Field
The invention relates to a pneumatic accelerator mis-stepping prevention device and a vehicle.
Background
In the vehicle cab, an accelerator pedal and a brake pedal are arranged in parallel in the lower right front of a driver and are controlled by the right foot of the driver. The accelerator and the brake are very close to each other, under the general condition, a driver cannot mistakenly step on the accelerator as the brake, but in reality, when an emergency situation occurs, such as in order to avoid suddenly appearing pedestrians and vehicles, or the driver is nervous and not concentrated in attention, or a novice driver goes on the road, the accelerator is easily mistakenly stepped on the brake, the stepping force is very large, and the driver often steps on the accelerator to the bottom quickly by one foot, so that the vehicle reaches the maximum speed instantly, and the traffic accident is caused.
Disclosure of Invention
The invention aims to provide a pneumatic accelerator mis-stepping prevention device, which solves the problem of traffic accidents caused by that a driver quickly steps on an accelerator to the bottom by one foot so that a vehicle instantly reaches the maximum speed; the invention also aims to provide a vehicle provided with the pneumatic accelerator mis-stepping prevention device.
In order to achieve the purpose, the pneumatic accelerator mistaken-stepping prevention device comprises a cylinder with one end blocked, a piston is assembled in the cylinder in a sealing sliding mode, a pressure spring elastically pressed against the piston is installed in the cylinder, one of the piston and the cylinder is provided with a connecting structure used for being connected with an accelerator pedal, the other one of the piston and the cylinder is provided with a connecting structure used for being connected with a vehicle body, a gas cavity is formed between the piston and the cylinder, a gas channel communicated with the inside and the outside is arranged on the cavity wall of the gas cavity, a seal head capable of moving relative to an opening of the gas channel to block and release the gas channel is arranged in the gas cavity, the seal head is arranged in the cylinder through an elastic supporting structure, when the piston and the cylinder are relatively immobile or relatively slowly move, the elastic supporting structure provides supporting force for the seal head, and the supporting force overcomes the pressure caused by the pressure difference to enable an air gap to be formed between the seal head and the opening of the gas channel, when the piston and the cylinder rapidly move towards each other, the instantly increased air pressure provides acting force for the seal head to overcome the elastic force of the elastic supporting structure and seal the air channel.
When a driver normally steps on an accelerator, the accelerator pedal is gradually pressed, the piston and the cylinder gradually move towards each other, and air in the air chamber smoothly passes through the air passing gap and is discharged from the air channel, so that the vehicle is normally started and accelerated; when a driver releases an accelerator pedal, the piston is reset under the action of the pressure spring, the pressure in the gas chamber is lower than the external atmospheric pressure, and external air enters the gas channel and flows into the gas chamber through the air passing gap, so that the vehicle is decelerated normally; when a driver steps on an accelerator suddenly, the accelerator pedal descends rapidly at first, the piston and the cylinder move oppositely and rapidly to squeeze air in the gas chamber, the air cannot pass smoothly due to a small air passing gap, the pressure in the gas chamber will increase rapidly, the suddenly increased air pressure acts on the sealing head and overcomes the elastic force of the elastic supporting structure to instantly seal the gas channel, so that the gas in the gas chamber cannot be discharged, the pressure can resist the force of the driver stepping on the accelerator, the accelerator pedal cannot descend continuously, the accelerator pedal has a section of descending displacement at first, the displacement is extremely small, the engine speed cannot be accelerated in the vehicle idling range, the automobile cannot be accelerated, and traffic accidents are avoided.
The end socket has various structures, for example, the end socket is bowl-shaped, and the outer surface of the bowl-shaped end socket forms a plugging surface for plugging a gas channel, so that a good plugging effect is ensured. At this time, the elastic supporting structure may be a spring piece, and one end of the spring piece is punched to form the bowl-shaped end enclosure. The end enclosure can also be flat or disc-shaped, and the outer surface of the disc-shaped end enclosure forms a plugging surface for plugging a gas channel. The elastic supporting structure adopts a pressure spring.
On the basis of any one of the schemes, one end of the air cylinder is blocked by the plug, the air channel is arranged on the plug, and the elastic support structure is fixed on the plug.
Furthermore, a sealing plate for extending the piston rod is arranged at one end of the cylinder, which is far away from the plug, and a through hole for communicating the rod cavity of the cylinder is formed in the sealing plate. The air pressure of the rod cavity is ensured to be the same as the air pressure outside the air cylinder.
The vehicle comprises a cab, an accelerator pedal is arranged in the cab, the accelerator pedal is connected with a pneumatic accelerator false-stepping prevention device, the pneumatic accelerator false-stepping prevention device comprises a cylinder with one end blocked, a piston is hermetically and slidably assembled in the cylinder, a pressure spring elastically pressed against the piston is installed in the cylinder, one of the piston and the cylinder is connected with the accelerator pedal, the other of the piston and the cylinder is connected with a vehicle body, a gas cavity is formed between the piston and the cylinder, a gas channel communicated with the inside and the outside is arranged on the cavity wall of the gas cavity, a seal head capable of moving relative to the opening of the gas channel to block and release the gas channel is arranged in the gas cavity, the seal head is arranged in the cylinder through an elastic supporting structure, when the piston and the cylinder relatively do not move or relatively slowly move, the elastic supporting structure provides supporting force for the seal head, and the supporting force overcomes the pressure caused by the pressure difference to enable an air gap to be formed between the seal head and the opening of the gas channel, when the piston and the cylinder rapidly move towards each other, the instantly increased air pressure provides acting force for the seal head to overcome the elastic force of the elastic supporting structure and seal the air channel.
When a driver normally steps on an accelerator, the accelerator pedal is gradually pressed, the piston and the cylinder gradually move towards each other, and air in the air chamber smoothly passes through the air passing gap and is discharged from the air channel, so that the vehicle is normally started and accelerated; when a driver releases an accelerator pedal, the piston is reset under the action of the pressure spring, the pressure in the gas chamber is lower than the external atmospheric pressure, and external air enters the gas channel and flows into the gas chamber through the air passing gap, so that the vehicle is decelerated normally; when a driver steps on an accelerator suddenly, the accelerator pedal descends rapidly at first, the piston and the cylinder move oppositely and rapidly to squeeze air in the gas chamber, the air cannot pass smoothly due to a small air passing gap, the pressure in the gas chamber will increase rapidly, the suddenly increased air pressure acts on the sealing head and overcomes the elastic force of the elastic supporting structure to instantly seal the gas channel, so that the gas in the gas chamber cannot be discharged, the pressure can resist the force of the driver stepping on the accelerator, the accelerator pedal cannot descend continuously, the accelerator pedal has a section of descending displacement at first, the displacement is extremely small, the engine speed cannot be accelerated in the vehicle idling range, the automobile cannot be accelerated, and traffic accidents are avoided.
The end socket has various structures, for example, the end socket is in a bowl shape, and the outer surface of the bowl-shaped end socket forms a plugging surface for plugging a gas channel, so that a good plugging effect is ensured. At this time, the elastic supporting structure may be a spring piece, and one end of the spring piece is punched to form the bowl-shaped end enclosure. The end enclosure can also be flat or disc-shaped, and the outer surface of the disc-shaped end enclosure forms a plugging surface for plugging a gas channel. The elastic supporting structure adopts a pressure spring. The elastic supporting structure is a spring piece, and one end of the spring piece is punched to form the bowl-shaped sealing head.
On the basis of any scheme of the vehicle, one end of the air cylinder is blocked by the plug, the air channel is arranged on the plug, and the elastic supporting structure is fixed on the plug.
Furthermore, a sealing plate for extending the piston rod is arranged at one end of the cylinder, which is far away from the plug, and a through hole for communicating the rod cavity of the cylinder is formed in the sealing plate. The air pressure of the rod cavity is ensured to be the same as the air pressure outside the air cylinder.
Drawings
Fig. 1 is a schematic structural diagram of a pneumatic accelerator anti-false-stepping device in an initial state according to an embodiment 1 of the vehicle of the present invention;
FIG. 2 is a schematic structural view of the pneumatic accelerator mis-stepping prevention device when stepping on the accelerator normally;
FIG. 3 is a schematic structural view of the pneumatic accelerator anti-false stepping device when rapidly stepping on the accelerator;
fig. 4 is a schematic view of a vehicle in embodiment 2 of the invention in which a header is flat;
fig. 5 is a schematic view of a disc-shaped closure in embodiment 3 of the vehicle of the present invention;
in the figure: 1-a cylinder; 11-a through hole; 12-closing the plate; 2-a piston rod; 21-a piston; 3-plug; 4-a gas channel; 5-sealing the end; 6-air gap; 7-a pressure spring; 8-a screw; 9-a gas chamber; 10-spring leaf.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
The specific embodiment 1 of the vehicle comprises a cab, wherein an accelerator pedal and a brake pedal are arranged in the cab, and a pneumatic accelerator mistaken-stepping prevention device is connected below the accelerator pedal. The pneumatic accelerator mistaken-stepping prevention device is structurally shown in figures 1 to 3 and comprises a cylinder 1, one end of the cylinder is plugged by a plug 3, a piston 21 is assembled in the cylinder 1 in a sealing and sliding mode, and one end of a piston rod 2 extends out of the cylinder 1 and is connected with an accelerator pedal. A pressure spring 7 is arranged in the cylinder 1 and elastically pressed against a piston 21. In the initial state, i.e. when the driver does not step on the accelerator pedal, the compression spring 7 stores a certain elastic potential energy to make the piston 21 located at the top of the cylinder. A gas chamber 9 is formed between the piston 21 and the cylinder 1. An L-shaped gas channel 4 which is communicated with the inside and the outside is arranged on the plug 3, and a seal head 5 which can move relative to the opening of the gas channel 4 to plug and let the gas channel open is arranged in the gas chamber 9. The end socket 5 is bowl-shaped, and the outer surface of the bowl-shaped end socket forms a plugging surface for plugging a gas channel. One end of a spring piece 10 is punched to form a bowl-shaped end socket, and the spring piece 10 is fixed on the plug 3 through a screw 8. The one end that cylinder 1 deviates from the end cap is equipped with the shrouding 12 that supplies piston rod 2 to stretch out, is equipped with the through-hole 11 that communicates the cylinder to have the pole chamber on the shrouding. When the piston and the cylinder are relatively immovable or relatively slowly move, the spring piece 10 provides a supporting force for the seal head 5, and the supporting force overcomes the pressure caused by the gas pressure difference to ensure that an air passing gap 6 is formed between the seal head and the opening of the gas channel; when the piston and the cylinder move towards each other rapidly, the instantly increased air pressure provides a larger acting force for the seal head 5, and the acting force overcomes the elastic force of the spring piece to seal the air channel.
When a driver normally steps on an accelerator, the accelerator pedal is gradually pressed, the piston and the cylinder gradually move towards each other, and air in the air chamber smoothly passes through the air passing gap and is discharged from the air channel, so that the vehicle is normally started and accelerated; when a driver releases an accelerator pedal, the piston is reset under the action of the pressure spring, the pressure in the gas chamber is lower than the external atmospheric pressure, and external air enters the gas channel and flows into the gas chamber through the air passing gap, so that the vehicle is decelerated normally; when a driver steps on an accelerator suddenly, the accelerator pedal descends rapidly at first, the piston and the cylinder move oppositely and rapidly to squeeze air in the gas chamber, the air cannot pass smoothly due to a small air passing gap, the pressure in the gas chamber will increase rapidly, the suddenly increased air pressure acts on the sealing head and overcomes the elastic force of the elastic supporting structure to instantly seal the gas channel, so that the gas in the gas chamber cannot be discharged, the pressure can resist the force of the driver stepping on the accelerator, the accelerator pedal cannot descend continuously, the accelerator pedal has a section of descending displacement at first, the displacement is extremely small, the engine speed cannot be accelerated in the vehicle idling range, the automobile cannot be accelerated, and traffic accidents are avoided.
In the above embodiment 1, the head is bowl-shaped, and the outer surface of the bowl-shaped head forms a plugging surface for plugging the gas channel. In embodiment 2, as shown in fig. 4, the seal head 5 may also be flat, and in this case, a compression spring 7 may be disposed at the lower end of the seal head, so that the compression spring provides upward elastic force to the flat seal head. In embodiment 3, as shown in fig. 5, the end enclosure 5 may also be in a disk shape, an outer surface of the disk-shaped end enclosure forms a blocking surface for blocking the gas channel 4, at this time, an opening of the gas channel 4 is in a flaring structure adapted to the outer surface of the disk-shaped end enclosure, and a compression spring 7 is disposed at a lower end of the disk-shaped end enclosure, so that the compression spring 7 provides an upward elastic force to the disk-shaped end enclosure. The compression springs in embodiments 2 and 3 may be replaced with spring plates. Of course, the end socket may have other shapes, which are not illustrated here.
In the above embodiment 1, the gas passage is provided in the plug, but the gas passage may be provided in other portions of the wall of the gas chamber.
In the above embodiment 1, the piston is connected to the accelerator pedal, and the cylinder is fixed to the vehicle body. In practical application, the piston and the vehicle body can be relatively fixed, and the cylinder and the accelerator pedal can be connected.
In the above embodiment 1, the pneumatic accelerator anti-misstep device is installed below the accelerator pedal in the cab. When the space of the cab is small, a stress application rod can be arranged on the accelerator transmission shaft along the diameter direction, and the pneumatic accelerator mistaken-stepping prevention device is connected with the stress application rod, so that the pneumatic accelerator mistaken-stepping prevention device is installed outside the cab.
The invention further provides an embodiment of the pneumatic accelerator mis-stepping prevention device, the specific structure of which is the same as that of the pneumatic accelerator mis-stepping prevention device in the embodiment of the vehicle, and the detailed description is omitted here.
Claims (6)
1. A pneumatic accelerator mistaken-stepping prevention device is characterized by comprising a cylinder with one end plugged, a piston is assembled in the cylinder in a sealing sliding manner, a pressure spring elastically pressed against the piston is installed in the cylinder, one of the piston and the cylinder is provided with a connecting structure used for being connected with an accelerator pedal, the other one of the piston and the cylinder is provided with a connecting structure used for being connected with a vehicle body, a gas cavity is formed between the piston and the cylinder, a gas channel communicated with the inside and the outside is arranged on the wall of the gas cavity, a sealing head capable of moving relative to the opening of the gas channel to plug and release the gas channel is arranged in the gas cavity, the sealing head is bowl-shaped, the bowl-shaped outer surface of the sealing head forms a plugging surface used for plugging the gas channel, the sealing head is arranged in the cylinder through an elastic supporting structure, and when the piston and the cylinder do not move or move slowly relative to each other, the elastic supporting structure provides supporting force for the sealing head, the supporting force overcomes the pressure caused by the air pressure difference to ensure that an air passing gap is formed between the end socket and the opening of the gas channel, and when the piston and the cylinder rapidly move in opposite directions, the instantly increased air pressure provides acting force for the end socket to overcome the elastic force of the elastic supporting structure to block the gas channel;
the elastic supporting structure is a spring piece, and one end of the spring piece is stamped to form the seal head;
the end of the spring leaf far away from the end enclosure is a fixed end, and the spring leaf is fixed at the side of the edge of the air inlet of the air channel through the fixed end.
2. The pneumatic accelerator pedal mistake-stepping prevention device as claimed in claim 1, wherein one end of the cylinder is blocked by a plug, the gas channel is arranged on the plug, and the elastic support structure is fixed on the plug.
3. The pneumatic accelerator pedal mis-stepping prevention device as claimed in claim 2, wherein a sealing plate for extending the piston rod is provided at the end of the cylinder away from the plug, and a through hole communicating with the rod cavity of the cylinder is provided on the sealing plate.
4. The vehicle comprises a cab, wherein an accelerator pedal is arranged in the cab, and the vehicle is characterized in that the accelerator pedal is connected with a pneumatic accelerator mistaken-stepping prevention device, the pneumatic accelerator mistaken-stepping prevention device comprises a cylinder with one end blocked, a piston is assembled in the cylinder in a sealing and sliding manner, a pressure spring elastically pressed against the piston is installed in the cylinder, one of the piston and the cylinder is connected with the accelerator pedal, the other of the piston and the cylinder is connected with a vehicle body, a gas cavity is formed between the piston and the cylinder, a gas channel communicated with the inside and the outside is arranged on the cavity wall of the gas cavity, a sealing head capable of moving relative to the opening of the gas channel to block and let the gas channel is arranged in the gas cavity, the sealing head is bowl-shaped, the bowl-shaped outer surface of the sealing head forms a blocking surface for blocking the gas channel, the sealing head is arranged in the cylinder through an elastic supporting structure, when the piston and the cylinder are relatively motionless or relatively slowly move, the elastic support structure provides support force for the seal head, the support force overcomes the pressure caused by the pressure difference to enable an air passing gap to be formed between the seal head and the opening of the gas channel, and when the piston and the cylinder rapidly move towards each other, the instantly increased air pressure provides acting force for the seal head to overcome the elastic force of the elastic support structure to seal the gas channel;
the elastic supporting structure is a spring piece, and one end of the spring piece is stamped to form the seal head;
the end of the spring leaf far away from the end enclosure is a fixed end, and the spring leaf is fixed at the side of the edge of the air inlet of the air channel through the fixed end.
5. A vehicle as claimed in claim 4, wherein the cylinder is blocked at one end by a plug, the gas passage being provided in the plug, and the resilient support structure being secured to the plug.
6. A vehicle as claimed in claim 5, wherein the end of the cylinder remote from the choke plug is provided with a closure plate for extension of the piston rod, the closure plate being provided with a through hole communicating with the rod chamber of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622335.5A CN108749570B (en) | 2018-06-15 | 2018-06-15 | Pneumatic type accelerator mistaken-stepping prevention device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622335.5A CN108749570B (en) | 2018-06-15 | 2018-06-15 | Pneumatic type accelerator mistaken-stepping prevention device and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108749570A CN108749570A (en) | 2018-11-06 |
| CN108749570B true CN108749570B (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810622335.5A Active CN108749570B (en) | 2018-06-15 | 2018-06-15 | Pneumatic type accelerator mistaken-stepping prevention device and vehicle |
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| Country | Link |
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| CN (1) | CN108749570B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020088884A (en) * | 2001-05-22 | 2002-11-29 | 기아자동차주식회사 | Device for release the parking brake automatically in a vehicle system |
| CN103085661A (en) * | 2013-01-18 | 2013-05-08 | 孙致远 | Automobile accelerator slow-stepping controller |
| CN203211283U (en) * | 2013-05-19 | 2013-09-25 | 赵勇 | Accelerator pedal having emergency braking function |
| JP5473102B1 (en) * | 2013-06-04 | 2014-04-16 | 修 井上 | Accelerator equipment for automobiles |
| CN104494441A (en) * | 2014-12-24 | 2015-04-08 | 重庆电讯职业学院 | Automotive accelerator mis-pressing preventer |
| DE102014006438A1 (en) * | 2014-05-02 | 2015-11-05 | Daimler Ag | Pedal device for a motor vehicle |
-
2018
- 2018-06-15 CN CN201810622335.5A patent/CN108749570B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020088884A (en) * | 2001-05-22 | 2002-11-29 | 기아자동차주식회사 | Device for release the parking brake automatically in a vehicle system |
| CN103085661A (en) * | 2013-01-18 | 2013-05-08 | 孙致远 | Automobile accelerator slow-stepping controller |
| CN203211283U (en) * | 2013-05-19 | 2013-09-25 | 赵勇 | Accelerator pedal having emergency braking function |
| JP5473102B1 (en) * | 2013-06-04 | 2014-04-16 | 修 井上 | Accelerator equipment for automobiles |
| DE102014006438A1 (en) * | 2014-05-02 | 2015-11-05 | Daimler Ag | Pedal device for a motor vehicle |
| CN104494441A (en) * | 2014-12-24 | 2015-04-08 | 重庆电讯职业学院 | Automotive accelerator mis-pressing preventer |
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| Publication number | Publication date |
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| CN108749570A (en) | 2018-11-06 |
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