CN2353608Y - Multiple-buffering kicking-back type protector for automobile - Google Patents

Abstract

The utility model relates to a multiple-buffering kicking-back type protector for an automobile, which is a steel mechanical device. The multiple-buffering kicking-back type protector for the automobile is in a column-shaped structure. The multiple-buffering kicking-back type protector for the automobile is mainly composed of a cylinder, a piston cylinder, a piston and a plurality of springs. The inner part forms a sealed hydraulic chamber and an air-pressure chamber. With the principle of mechanics, the impact is resisted mainly through the conductive kickback of liquids to impulsive force. Through the multiple buffering, the impulsive force born by the automobile is reduced when the automobile impacts. The multiple-buffering kicking-back type protector for the automobile is a buffer when the automobiles impact and is mainly used for automobiles, especially for small-size automobiles, which is favorable to protect effectively the automobiles and people when traffic accidents happen.

Description

Multi-buffer recoil type automobile protector

The utility model relates to a kind of automobile collision preventing protection safety device, when automobile meets accident bump vehicle and personnel is shielded.

Automobile meets accident to collide under steam often to be had, and the bumper/spoiler before and after the automobile has the certain protection effect, but can not alleviate the intensity of bump.The automobile that the protection air bag is set also just shields to personnel.Having not yet to see a kind of impact strength of alleviating effectively plays the protection vehicle and alleviates the device of passengers inside the car's damage.

The purpose of this utility model provides and plays buffer action when a kind of automobile bumps, and vehicle and personnel are produced the safety device of protective effect.

The purpose of this utility model is to realize that by the designed special construction of foundation mechanics principle this device is a tubular steel design, mainly is made up of cylinder barrel, piston barrel, central piston, tail plug and five groups of springs.Cylinder barrel is a main body, is a long column shape hollow structure, is had the interval of passage to be divided into front and back two parts, and the front portion is the garden tube of a double-deck opening, and the rear portion is the tubular tail chamber, garden that individual layer has the end.Piston barrel is the garden tube of a hollow open, just in time inserts between the ectonexine of cylinder barrel front portion, and its front end is hit the position.Central piston is a garden pillar buoy of having the end in one in vain, and its front end has opening, and it just in time inserts inner cylinder tube.Tail is indoor a flat piston, is pressed by one group of powerful spring the passage on the interval is sealed.Between central piston rear and front end, interior outer cylinder and outside the piston barrel, spring is arranged all.Interior hydraulic pressure chamber and outer hydraulic pressure chamber that interior outer cylinder forms have been full of the hydraulic pressure agent.

This device is like this work: before it is fixed on car chassis/and the outstanding position at rear portion, when the moment that front end is impacted, impulse force is eased by a series of actions.Its working process can be divided into for three steps: (1) when being hit piston barrel at first the inside and outside spring of compression cylinder form the first resistance journey; (2) piston barrel is subjected to powerful impulse force, promotes the hydraulic pressure agent and oppositely promotes central piston by passage, produces recoil, and the facedown impulsive contact force forms the second resistance journey; (3) when hydraulic pressure surpassed certain numerical value, liquid was pushed the tail plug open, and tail chamber spring is compressed and forms the 3rd resistance journey.These three actions are carried out continuously in real process.The design's theoretical foundation: (1) is according to the suffered external force of Newton's second law object $\stackrel{\→}{f}=\stackrel{\→}{\mathrm{ma}}=m\frac{\mathrm{\ΔV}}{\mathrm{\Δt}}$ Impulse force that takes place when promptly colliding and speed are directly proportional and in-service time is inversely proportional to, because the buffer action of this device slows down collision speed, collision time prolongs, and the impulse force that directly acts on the automobile reduces.(2) bump that is subjected to according to liquid pressure principle automobile promotes piston barrel impulse force is formed the recoil facedown by the liquid counter-flow, offsets external impact, and this is the most important mechanism of the design.(3) this device is the device of a leak tightness, and the air of piston one end also plays buffer action when the pressure that is subjected to is compiled.The mechanical compress of spring in addition plays equally and subtracts the effect of hitting.

Owing to adopting said structure, when collision happens, can slow down collision effectively vehicle and the personnel's injury that is caused.After supposing that this device is slow and hitting, the collision speed on the automobile of directly acting on reduces by one times or in-service time and prolongs one times and all can make impulse force descend 50%, in fact reduces velocity of impact and prolongs collision time, has an effect simultaneously, produces the demultiplication effect.Buffer action is bigger.

Be described further below in conjunction with accompanying drawing.

Fig. 1: overall vertical profile diagrammatic sketch;

Fig. 2: cylinder barrel front end outer cylinder cutaway view;

Fig. 3: piston barrel;

Fig. 4: central piston part sectional view;

Fig. 5: four these devices behind the bumper/spoiler of roadlice chassis are fixed in signal.

In the accompanying drawing 1: 1. resistance is hit 5. outer cylinders, 6. inner cylinder tubes, 7. central pistons, 8. outer hydraulic pressure chambers 9. interior hydraulic pressure chamber tail chambers 10. 11. tail chamber pistons, the 12. oiling exhausts of cap 2. shells 3. piston barrels 4. oxygen pressure chamber and is chewed 13. cross passages, 14. tail gas exhausr ports, 15. seal rings, 16. packing seal 17.19.20. spring 18.21. spring cross sections.

Among Fig. 5: 1. 2. of Federal bumpers install 3. fixed card, 4. car chassis front-axle beams.

In Fig. 1 embodiment: the fore-end of cap 1, shell 2 and piston barrel 3 mutual group cost devices is hit in resistance.Piston barrel inserts between outer cylinder 5 and the inner cylinder tube 6 closely, and central piston 4 inserts inner cylinder tube, forms the device of a multilayer intussusception hollow like this.Figure China and foreign countries hydraulic pressure chamber 8 is full of the hydraulic pressure agent with interior hydraulic pressure chamber 9, communicates by cross passage 13, and communicates with the tail chamber.Central piston (7) is the hollow no liquid.Hit cap (1) when being subjected to clashing into when resistance, spring (20) (21) is compressed, and piston barrel advances backward, and spring (18) is compressed, and makes the interior hydraulic pressure chamber of outer hydraulic pressure chamber flow direction form recoil and pushes central piston to the antagonism impulsive contact force.Tail chamber piston is pressed by spring 17 and seals the passage that leads to the tail chamber among Fig. 1, and liquid pressure increases tail chamber piston and is pushed rearward movingly in the hydraulic pressure chamber that is impacted, and the tail chamber is poured in the hydraulic pressure agent, has formed another buffering.When pressure is excessive in this device the oiling exhaust chew 12 and the embolism of tail chamber deflation hole 14 washed open, in case explosion takes place in this device.

Claims (3)

1. the utility model multi-buffer recoil type automobile protector, main cylinder barrel by steel, piston barrel, central piston, tail chamber piston and five groups of fully enclosed garden cylindrical device that spring constitutes, it is characterized in that: cylinder barrel is front and back two parts, the front portion is the dual tube that is become by interior outer cylinder thing, between the outer cylinder, central piston inserted again in the inner cylinder tube in piston barrel just in time inserted, and formed the device of the overlapping hollow of multilayer; Tail chamber piston is equipped with in the tail chamber of cylinder barrel rear end, set composite before and after this just forms, and five groups of springs place outside the piston barrel, the inside and outside hydraulic pressure chamber of piston barrel, interior hydraulic pressure chamber and tail chamber.

2. multi-buffer recoil type automobile protector according to claim 1 is characterized in that: all be full of the hydraulic pressure agent in the inside and outside liquid chamber, (used hydraulic pressure agent gets final product by general hydraulic machinery) inside and outside hydraulic pressure chamber has passage to communicate.

3. device according to claim 1 is characterized in that between tail chamber and inside and outside hydraulic pressure chamber passage being arranged, and tail chamber piston is pressed by powerful spring and seals, and hydraulic coupling is dashed big during to certain numerical value, and the porthole is opened.

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