CN212332585U - Jacking device for instantly lifting automobile front cover - Google Patents
Jacking device for instantly lifting automobile front cover Download PDFInfo
- Publication number
- CN212332585U CN212332585U CN202020554648.4U CN202020554648U CN212332585U CN 212332585 U CN212332585 U CN 212332585U CN 202020554648 U CN202020554648 U CN 202020554648U CN 212332585 U CN212332585 U CN 212332585U
- Authority
- CN
- China
- Prior art keywords
- shell
- piston rod
- igniter
- cartridge
- front cover
- 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.)
- Active
Links
Images
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses a jack for instantly lifting a front cover of an automobile, which comprises an igniter, an igniter seat, a cartridge, a gas producing medicine, a shell and a piston rod; the ignition tool seat is arranged at the inner lower end of the shell and fixes the ignition tool in the shell; the upper end of the ignition device is provided with a cartridge, and the cartridge is filled with gas producing drugs; the upper end of the cartridge is provided with a piston rod, and the upper part of the shell is provided with an opening and can accommodate the piston rod to extend out; the upper end part of the shell is provided with a shell ring, the lower part of the piston rod is provided with an expanding hole, and the shell ring is matched with the expanding hole to prevent the piston rod from flying out; the lower side of the piston rod is provided with at least one exhaust groove. This jacking ware passes through the cooperation of ignition mechanism, cartridge case and piston, and the action that lifts up at completion automobile bonnet rear portion that can be simple quick has avoided taking place because of the complicated condition that leads to with high costs of structure before, and this makes the jacking ware compare the structure simpler, material cost is lower with before to lift up fast, buffering effect is good, better to pedestrian's protection effect.
Description
Technical Field
The utility model belongs to the technical field of car safety, especially, jacking ware of car shroud lifting in twinkling of an eye.
Background
Currently, in the safety problem of car accidents, the injury to the driver and the injury to the pedestrian are minimized. When the automobile collides with a pedestrian from the front, the head of the collided pedestrian probably collides with the front cover of the automobile again, so that secondary damage is caused. At present, two active safety protection systems for a pedestrian collided with the front of an automobile are mainly used, wherein one system is to lift the rear part of a front cover of the automobile to a designed height instantly so as to buffer the collision force between a human body and the front cover when the human body falls on the front cover, and therefore the head injury of the collided pedestrian is reduced. At present, the lifters in the market all utilize gunpowder to produce thrust and promote piston structure, and its structure mainly comprises pencil, flange, bar code label, ignition utensil, the injection molding body, gas production explosive grain, cartridge case, filtration, piston, sealing washer, shell ring, rubber cap that the lifters are connected with whole car, and this causes the lifters structure complicacy, bulky, with high costs, is unfavorable for using widely.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a simple structure's jacking ware of automobile front shroud lifting in twinkling of an eye.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: it comprises an igniter, an igniter seat, a cartridge, a gas producing medicine, a shell and a piston rod; the ignition tool seat is arranged at the inner lower end of the shell and fixes the ignition tool in the shell; the upper end of the ignition device is provided with a cartridge, and the cartridge is filled with gas producing drugs; the upper end of the cartridge is provided with a piston rod, and the upper part of the shell is provided with an opening and can accommodate the piston rod to extend out; the upper end part of the shell is provided with a shell ring, the lower part of the piston rod is provided with an expanding hole, and the shell ring is matched with the expanding hole to prevent the piston rod from flying out; the lower side of the piston rod is provided with at least one exhaust groove.
The air discharge duct of the utility model is a strip-shaped duct or a trapezoidal duct.
Be equipped with the sealing washer between piston rod lower part and the shell.
Be equipped with the sealing ring between piston rod upper portion and the shell.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the utility model discloses a gas production medicine promotes the piston rod and plays the ejector pin, can be more quick with the car shroud bounce, make it just can play the peak before with pedestrian and shroud collision, pedestrian and shroud collision can cushion in the twinkling of an eye, avoided pedestrian and shroud collision in the twinkling of an eye the condition that the shroud still rises, use safelyr, protectiveness is stronger. The utility model discloses when pedestrian and shroud collision before, the air discharge duct is lost heart to the impact energy of the absorption pedestrian head that the piston rod buffering can be better, realizes the more effective buffering to the pedestrian, and protectiveness and security are better.
The utility model discloses a cooperation setting of ignition mechanism, cartridge case and piston, the action that can be simply quick completion automobile bonnet rear portion lifts up has avoided preceding because of the complicated condition that leads to the jacking ware material to be with high costs of structure takes place, and this makes the jacking ware compare the structure simpler, material cost is lower with preceding to lift up fast, the buffering is effectual, better to pedestrian's protection effect.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the exhaust duct of the present invention;
fig. 3 is another schematic structural diagram of the exhaust duct of the present invention.
In the figure: 1. the gas production device comprises a rubber cap, a shell ring 2, a flange 3, a sealing ring 4, a shell 5, a piston rod 6, a sealing ring 7, a gas producing medicine 8, a cartridge 9, an igniter 10, an igniter seat 11, a wire harness 12, an exhaust groove 13 and a label 14.
Detailed Description
As shown in fig. 1, the jack for instantly lifting the front cover of the automobile comprises an igniter 10, an igniter seat 11, a medicine cylinder 9, a gas producing medicine 8, a shell 5 and a piston rod 6. The shell 5 is of a cylindrical structure, an igniter seat 11 is fixed at the inner lower end of the shell 5, and an igniter 10 is fixed at the upper end of the igniter seat 11. The igniter 10 is internally provided with a thermosensitive material, the thermosensitive material extends out of an igniter seat through a wire harness 12, and the other end of the wire harness 12 is connected with an automobile pedestrian frontal collision protection system ECU. The upper end of the igniter 10 is provided with a medicine cylinder 9, and the medicine cylinder 9 is filled with gas producing medicine 8. The gas generating agent 8 is pyrotechnic composition and consists of nitroguanidine, pentaamino tetrazole, guanidine nitrate, potassium perchlorate, basic copper nitrate and other auxiliary agents; when the igniter 10 explodes, the gas generating agent 8 can be rapidly combusted, and a large amount of nontoxic and harmless gas is generated.
In the jacking device for instantly lifting the front cover of the automobile, as shown in fig. 1, a piston rod 6 is arranged at the upper end of a medicine cylinder 9, and the upper part of a shell 5 is opened and can accommodate the piston rod 6 to extend out. The upper ends of the piston rod 6 and the housing 5 are provided with rubber caps 1 for covering the housing 5 and the piston rod 6. A certain gap is formed between the piston rod 6 and the inner wall of the shell 5, so that the piston rod 6 can conveniently and smoothly move upwards, and the upper ends of the piston rod 6 and the inner wall of the shell 5 are provided with sealing rings 4 for ensuring the air tightness of the piston rod 6 and the shell 5; a sealing ring 7 is arranged between the lower part of the piston rod 6 and the inner wall of the shell 5 to further ensure the air tightness of the piston rod and the shell. The top opening of the shell 5 is provided with a shell ring 2, the lower part of the piston rod 6 is provided with an expanding diameter, and the shell ring 2 is matched with the expanding diameter to prevent the piston rod 6 from completely flying out. An air discharge groove 13 is formed at the lower side of the piston rod 6, and the height position of the air discharge groove 13 is positioned below the exposed shell part after the piston rod 6 is fully bounced, so that the air discharge groove 13 begins to be deflated after the piston rod 6 is fully bounced, and the buffer is generated. As shown in fig. 2 and 3, the exhaust grooves 13 are strip-shaped grooves or trapezoidal grooves, and one or more exhaust grooves may be provided as required; when the strip-shaped groove is adopted, the air leakage speed is basically kept unchanged; when the trapezoidal groove is adopted, the air leakage speed after the piston rod 6 is completely bounced is fastest, and the air leakage speed in the process that the piston rod 6 is pressed down is gradually slowed down, so that a better buffering effect can be provided. And a flange 3 is arranged at the upper side part of the shell 5, and the other end of the flange 3 is connected with an automobile front cover system. The outer side of the housing 5 is also labelled 14.
The trigger process of the jacking device for instantly lifting the front cover of the automobile is as follows: when a pedestrian front collision occurs, the automobile pedestrian front collision protection system ECU sends an ignition current pulse through the wire harness 12 and then detonates the igniter 10, and high-temperature and high-pressure gas generated by explosion pushes the piston rod 6 to move upwards. When the igniter 10 explodes, the gas production medicine 8 is ignited rapidly, and a large amount of nontoxic and harmless gas generated by the rapid combustion of the gas production medicine 8 further pushes the piston rod 6 to move upwards and drives the rear end of the front cover of the automobile to rise. After the piston rod 6 reaches the highest designed position, the rear end of the front cover of the automobile also reaches the designated height. At the moment, when the head of a pedestrian collides with the front cover of the automobile, the front cover of the automobile is pressed down, the exhaust grooves 13 exhaust gas outwards, so that the impact on the head of the pedestrian is buffered, the exhaust grooves 13 continue to exhaust gas, and the volume of the shell gas begins to shrink, so that better buffering is provided for the impact.
Claims (4)
1. The utility model provides a jacking ware of car front shroud lifting in twinkling of an eye which characterized in that: which comprises an igniter (10), an igniter seat (11), a medicine cylinder (9), a gas producing medicine (8), a shell (5) and a piston rod (6); an igniter base (11) is arranged at the inner lower end of the shell (5), and the igniter base (11) fixes the igniter (10) in the shell (5); the upper end of the ignition device (10) is provided with a medicine cylinder (9), and the medicine cylinder (9) is filled with gas producing medicines (8); the upper end of the medicine cylinder (9) is provided with a piston rod (6), the upper part of the shell (5) is opened and the piston rod (6) can be extended out; a shell ring (2) is arranged at the upper end part of the shell (5), an expanding diameter is arranged at the lower part of the piston rod (6), and the shell ring (2) is matched with the expanding diameter to prevent the piston rod (6) from flying out; the lower side part of the piston rod (6) is provided with at least one exhaust groove (13).
2. The jacking device for instantly lifting the front cover of the automobile as claimed in claim 1, wherein: the exhaust groove (13) is a strip-shaped groove or a trapezoidal groove.
3. The jacking device for instantly lifting the front cover of the automobile as claimed in claim 1, wherein: and a sealing ring (7) is arranged between the lower part of the piston rod (6) and the shell (5).
4. The jacking device for instantaneously lifting the front cover of the automobile as claimed in claim 1, 2 or 3, wherein: and a sealing ring (3) is arranged between the upper part of the piston rod (6) and the shell (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020554648.4U CN212332585U (en) | 2020-04-15 | 2020-04-15 | Jacking device for instantly lifting automobile front cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020554648.4U CN212332585U (en) | 2020-04-15 | 2020-04-15 | Jacking device for instantly lifting automobile front cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212332585U true CN212332585U (en) | 2021-01-12 |
Family
ID=74068999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020554648.4U Active CN212332585U (en) | 2020-04-15 | 2020-04-15 | Jacking device for instantly lifting automobile front cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212332585U (en) |
-
2020
- 2020-04-15 CN CN202020554648.4U patent/CN212332585U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201506324U (en) | Hybrid gas generator | |
| MXPA97000734A (en) | Reinforcing system for structural member of the motor vehicle chassis | |
| JP2002513350A (en) | A device for inflating an airbag with a liquid propellant | |
| CN106143381B (en) | A kind of motor-vehicle accident safety pop-up escape compartment | |
| CN108909850B (en) | Active ejecting self-locking limiting energy absorption device of instrument board and instrument board | |
| CN100569561C (en) | A kind of automobile collision active protection buffer device | |
| CN109664857B (en) | Mixed gas generator for side air bag | |
| CN111674352B (en) | Trigger of automatic lifting system of automobile front cover | |
| CN212332585U (en) | Jacking device for instantly lifting automobile front cover | |
| CN101746345A (en) | Vehicular pedestrian protector and vehicle comprising same | |
| CN212332586U (en) | Automatic lifting trigger for automobile front cover | |
| CN212332587U (en) | Trigger for instantaneous lifting of automobile front cover | |
| CN206826759U (en) | A kind of automatic bounce device of pyrotechnic automobile engine cover | |
| CN212332589U (en) | Trigger for instantaneous lifting of automobile engine cover | |
| CN212332588U (en) | Trigger is lifted to automobile front shroud | |
| CN2772902Y (en) | Mixed gas generator of safety gasbag with side bump protection for vehicle | |
| CN109131170A (en) | A kind of automobile collision protection device | |
| CN112864517B (en) | New energy automobile battery box | |
| CA2204787A1 (en) | Liquid-gas generator | |
| CN111055875B (en) | Gas buffering type train impact energy dissipation device | |
| CN2900256Y (en) | Air spring safety beam for vehicle | |
| ES2226874T3 (en) | STEERING COLUMN AND DISPLACEMENT PROCEDURE FOR A STEERING COLUMN. | |
| CN201385638Y (en) | Safety protection device for car-people crash | |
| CN100515832C (en) | High pressure air cylinder touch valve for safety air bag in vehicle and ship | |
| CN215427024U (en) | Escape window breaking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |