CN101112884A - Automobile collision protector - Google Patents

Abstract

An automobile bumping safety protector relates to a special device controlling the release of the automobile bumping energy, having the special function to ensure the vehicle body not damaged when the automobiles are positively bumped. The externality of the invention is similar to a damping cylinder. The invention consists of a cylindrical structure impacting rod and a bearing pad, a metal safety piece, a brake screw, an elastic clamp ring and so on matched with the impacting rod in a metal cylinder with enough rigidity. The working principle of the invention is that the impacting force produced by the huge energy when the automobile is bumped is restricted within a safe range by the anti-impacting capability of the metal piece and is gradually consumed in the process continuously punching and cutting the metal piece, thus reaching the protection of the vehicle safety. The vehicle body is not damaged during the bumping process, thus eliminating the fatal accident caused by the squeezing of the driver as the deformation of the vehicle body, and indirectly protecting the safety of the driver.

Description

Automobile collision protector

(1) technology neck city:

The present invention is the improvement that belongs to anti-collision device for automobile.

(2) technical background: the present automobile made of countries in the world, in its front and afterbody various types of bumper systems are housed mostly, attempt when car accident takes place, come consumed energy with the distortion of bumper/spoiler, protect vehicle to slow down impulse force.But this bumper/spoiler role is very limited, and is very unsatisfactory, and real genus is illusory.

The moving velocity of automobile is more and more higher, the quality of automobile itself and load carrying ability are also increasing, hide car not as good as and the car accident and a chain of collision case that cause take place repeatedly, the harm that causes and the ambassador people of economic loss are difficult to and may bear, people are exploring terms of settlement always.Only find from the information site of China Intellectual Property Office, Chinese technical patent office, the technology relevant with automotive crash safety of application and Granted publication just nearly surplus in the of 200, this shows the degree that people pay attention to automotive crash safety at home.These technology mostly be that to be based upon impulsive force that the huge energy of the moment of colliding produces be uncontrollable and the basis of the theory that overcomes on because the mistake on the theory makes design come into mistaken ideas.These technology mainly contain two classes, and the first kind is the collision avoidance device, and second class is a shock absorber.The collision avoidance device adopts photoelectric technology and computerized control system more, the use of this technology is subjected to the restriction of many conditions, result of use is very undesirable in many cases, for example: the hill path of heave and set, anxious bend, the vehicle that closely suddenly turns out that turns and electronic original part breaks down and braking automobile mechanism is ineffective ... Deng, make it be difficult to play a role.Steel pipe, rubber, air bag, spring, damped cylinder are adopted in buffer more ... Deng, consume portion of energy with the destruction of these objects, to reduce the damage rate of vehicle structure, reach protection driver and conductor purpose of safety.Such shock absorber can only work in slight collision, does not have due effect for moving velocity higher collision accident, can not fundamentally eliminate the harm of collision.

The moment of auto against has huge energy, and its destructive force of the disposable release of these energy is very big, if these energy can be discharged as required successively, just can avoid vehicle to destroy and obtains safety.According to such theory, present technique contriver was in a utility model in State Patent Office's application in 1988, the patent No. is: 88 2 19704,5, and name is called " scissors file protect ", is a simple mechanical device of utilizing the principle design of the stamping-out sheetmetal in the cold punching technology.The economic capability of experiment can't not implemented and abandons because I collide.More than ten years have gone over, the automotive use amount of China has increased, the collision safety problem is still very severe, up to now, also there is not a technology that can fundamentally solve automotive crash safety to occur, be necessary to restart this research for this reason, the current patent of invention of examining newspaper is exactly the achievement of the in-depth study of this technology, its principle of work is similar to original utility model, but done very big improvement on the structure, the principle of work of its structure and former utility model have very big difference, have overcome the deficiency of original structure, make its science and practicality more.

Disclosed JuYongMing invention by the Wuhan City of the 7 days June of finding on the net in 2006, the patent No. is: 200510098669, X, name is called " automobile anti-collision gradually damage device ", the principle of work of its structure is similar to the utility model of inventor's application in 1988, and different is that he changes the punching sheetmetal into the punching pin, and it and the present invention are relatively, no matter be that function and purposes all have very big difference, can not replace the technology of the present invention (slightly) at this.

(3) summary of the invention:

The object of the present invention is to provide a kind of general-duty safety device that can on various types of automobiles, use, the special machine city device that discharges successively in a kind of scope that the huge energy that has in the car accident can be limited in a safety.Fundamentally solve the front of automobile and the safety problem of head and the tail when bumping against.

Task of the present invention be achieved in that with automobile collision protector (hereinafter to be referred as: protector) (miniature car is adorned two to the front end of the direct or indirect chassis ridgepole that is installed in automobile; full-sized car is adorned four); hit thick stick with the purpose made metal two protectors are laterally connected to form a novel bumper/spoiler, the installation site of this novel bumper/spoiler is identical with the installation site of the bumper/spoiler of existing automobile.Protector uses as a component part of this later-model bumper/spoiler.Replace existing old-fashioned bumper/spoiler with so novel bumper/spoiler.Hit thick stick good rigidity and intensity will be arranged with protector is used in the novel bumper, protector with laterally hit thick stick and take hinged combination.When car accident takes place; hit the impulse force bar that thick stick passes to impulsive force protector; the impulse force bar under the cooperation of holding die head with the endless metal safety plate (hereinafter to be referred as then one die-cut sheetmetal), up to unable die-cut till, the energy that produces during collision is consumed by it gradually.Because of the thickness of sheetmetal is that can the withstand shocks size of power of structure crossbeam according to this automobile is selected; therefore the impulsive force that acts on the automobile can not surpass the needed power of this sheetmetal of destroying; so automotive frame can not be out of shape, whole automobile has obtained the actv. protection.

Protector is a kind of mechanical device, it is characterized in that the impulse force bar of a plurality of trapezium structures, holds die head, sheetmetal, guiding pad ... Deng, being contained in the same metal sleeve that enough stiffness are arranged, seal with spring collar at the two ends of sleeve.Wherein the impulse force bar has two, each impulse force bar has the different cylinder of several excircle dimensions, arranges by the size order of cylindrical diameter dimension, is the trapezium structure state, two impulse force bars end to end adopts the mode of sliding fit to guarantee the process that it can have one section relative slippage at work.Respectively have on the two impulse force bars one group with matching, has the die head that holds that can bear external force, impulse force bar and hold bigger tolerance clearance is arranged between the die head, to prevent the collide generation of accident of in finishing die-cut sheetmetal operation two cutting edges, the numerical value in its gap calculates according to the sheet material blanking clearance in the cold punching technology.The cylindrical die-cut cutting edge of on the impulse force bar each place is equipped with sheetmetal, make whole device formed one by several by the impulse force bar, hold that die head and sheetmetal form, can independently finish the cell cube of blank operation.The front end of first impulse force bar stretches out an outer joint, in order to accept and to transmit impulsive force.1 hole on the urceolus of protector is used for the lubricating oil of annotating, and lubricating oil can only can not annotate solid-state butter or liquid petrolatum be obstructed to prevent exhaust with liquid machine oil, covers after the oiling to add a fritter plastic sheeting as dustproof means outside the hole.

Typical structure of the present invention is according to function design-calculated that can 10 sheetmetals of continuous cutting, in order to reduce the scantling of structure expendable weight, impulse force bar and hold die head by the design of the principle of work of duplex, the profile of sheetmetal is annular arrangement, the spitting image of the faced washer in the mechanical component, the opening on it is established in order to change convenient.For fear of the generation of the simultaneously punched situation of two sheetmetals, with a thickening in 10 sheetmetals, make its anti-impact cut out ability and will exceed 25% than other each sheetmetal, guarantee that two impulse force bars work sequentially, guarantee the normal operation of duplex.Hold on the baseplane of die head four shallow slots are arranged, communicate with the longitudinal groove on cylindrical edge chamfering and the sleeve lining, passage as the profit carburetion influences use in case INT COMP is got rusty, this passage can play the effect that pressurized air is eliminated vapour lock of discharging again when car accident takes place.The metal rupture disc of the method for thickness can be by changing to(for) the vehicle of different tonnages satisfies its requirement, can increase or reduce the quantity of sheetmetal for special requirement, and the pattern length size of its structure will make corresponding changes at this moment.

According to the Newton's law principle, the power that produces when full-sized car bumps against with miniature car is relevant with the relative velocity of two cars, and is relevant with the deadweight and the load-carrying of dolly, and irrelevant with the deadweight and the load carrying ability of cart.The protector that needs only on the car plays a role, and two automobiles all can be very safe.Also this reason just; the afterbody of automobile does not need to install protector, still, hits the metal bumper that target should be equipped with better impact resistance as the quilt in the collision accident that knocks into the back; the position of hitting thick stick that its position and automobile are used previously (meaning height overhead) is identical.

Just destroy the several sheetmetals in the protector in car accident takes place, other member of protector is not impaired, renews as long as the sheetmetal that has washed out in time taken out, and whole device can be reused.The cost of sheetmetal is very low, and the manufacturing of protector is to be main means with machine up, and productive costs is not high, its operation and maintenance expense lower (be used for decoration function plastic housing value not within it), hold susceptible to user acceptance.

(4) description of drawings:

Fig. 1: protector structure scheme drawing: the inner structure state before expression is collided.

Fig. 2: protector fundamental diagram: serious car accident has taken place, each member after 10 sheetmetals are punched all and the relative position of metal relic in the expression hypothesis.

Fig. 3: the installation site scheme drawing (lateral plan) of protector: the setting height(from bottom) position of expression protector on automobile, wherein H1 represents the chassis structure crossbeam height overhead of miniature car; H2 represents the chassis structure crossbeam height overhead of full-sized car, the safety when ensureing that full-sized car and miniature car bump against, and full-sized car is all installed protector and is hit thick stick on H1 and two height of H2, and wherein 21* represents protector; The front that 22* represents full-sized car is protector and hit the mounting bracket of thick stick fixedly; 23* represents the mounting bracket of the afterbody shock resistance bumper/spoiler of full-sized car, and 24* represents the shock resistance bumper/spoiler of automobile tail; 25* represents the shock proof thick stick that hits of the automobile fwd that is used with protector.The thick stick that hits of H1 contacted when two dolly collisions or cart bumped against with dolly, hitting thick stick and can both contact when two carts bump against on H1 and the H2, because the vehicle that countries in the world produce is a lot, its chassis height overhead is different, so at first will carry out the reunification of bumper mounting position when promoting this technology, this relates to the category of standardization effort.

Fig. 4: the installation site (birds-eye view) of protector on automobile;

Represent the mutual alignment of novel bumper/spoiler Zhong De Tong thick stick and protector and the resemblance of hitting thick stick.The miniature car front is adorned 2, and full-sized car divides two-layer up and down, 2 every layer, adorns 4 altogether.

(5) specific embodiment

With reference to Fig. 1,2,3,4, shown in; protector is that a profile is columniform mechanical device; be equipped with in the cylindrical member 18* trapezium structure that is combined into 1*, 14*, 15* the impulse force bar and supporting with it hold die head (6*, 8*, * 9*, 11*, 14*) formed can 10 sheetmetals of continuous cutting (4*, 5*, 7*, 10*, 12*, 16*) device.The thickness that holds die head is slightly less than the corresponding with it cylinder length size on the impulse force bar.Impulse force bar and hold die-cut gap 14* between the die head; 17*; the guiding of 18* ensures; 14* and 15* adopt force fit to be combined into one; (this is the needs of fabrication properties); make it have oad and the function similar to 1* impulse force bar; wherein 14* is a crucial multi-functional framing member; three formpiston cutting edges are arranged on it; it is the component part of second impulse force bar; a former cutting edge uses as holding die head; outer garden cylinder and endoporus cylinder play location and directional tagging; compensating plate 2* is in order to just usefulness of the diameter clearance of restriction 1*, apolegamy as required in combination when the combined protection device.

Two cars take place positive in travelling with the speed of V1 and V2 respectively or head and the tail when bumping against, the automobile fwd hits thick stick 25* and at first contacts, impulsive force P is passed to impulse force bar 1*, and by sheetmetal 12*, impulse force bar 14*, 15*, sheetmetal 16* pressed to hold die head 11*, when external force P has surpassed the ability to bear of sheetmetal, sheetmetal has just been washed out, because sheetmetal 12* is a heavier-duty, so sheetmetal 16* is at first washed out, act on power pop-off on the automotive frame this moment, the antagonistic force that produces because of the inertia of automobile itself makes the collision energy produce bigger decay again, and this has just finished the consumption process of the impact energy first time.The energy that consumes in current expenditure of energy process comprises two partly, and first is the energy that die-cut sheetmetal consumes, and second portion is the moment that sheetmetal is thrust, the energy decay that the force of inertia that the quality of automobile itself produces causes.When the power on acting on the impulse force bar does not all consume in the process of current die-cut sheetmetal, impulse force bar 15* is pressed to sheetmetal 10* again, begin to repeat the die-cut process of last sheetmetal 16* ... after the 5th sheetmetal 4* is punched, first impulse force bar that is combined into by 14* and 15* in the structure has just been finished its whole work, when the impulsive force on acting on reinforcement metal sheet 12* has surpassed its ability to bear, second impulse force bar 1* just begins to repeat the function of last impulse force bar, up to unable die-cut till.No matter the several sheetmetals in the protector are punched, and the power on the automobile of affacting can not surpass the power of a die-cut sheetmetal all the time, and the power that can cause automobile to destroy can not occur.The scope that the huge energy that has during collision is limited in a die-cut gold plaque energy needed discharges successively, progressively consumes, and is promptly consumed gradually in the process of die-cut sheetmetal continuously.These 10 sheetmetals have been enough to meet requirements in the ordinary course of things.Vehicle structure has obtained the failure-free guarantee, and is fool proof.

Using the maximum miniature car of quantity to be example, amount to by 1500 kilograms to 2000 kilograms considerations by himself weight and load-carrying, think that through calculating the best way that realizes is: the upperlimit of protector is Φ 80 * 350, nearly 10 kilograms of net weight.Sheetmetal is made with the high-quality dead-soft steel, and the thickness of sheetmetal is selected by the different automobile types ability of withstanding shocks.Sheetmetal 16* thickness among Fig. 1 is cut 125% of ability by the anti-impact of other sheetmetal and is calculated, 5 safety plates are housed on the impulse force bar, the diameter dimension difference of these 5 safety plates, method with the thickness that changes sheetmetal makes its anti-impact force basically identical, the sheetmetal of same oad has different thickness, from 0,6mm begins by 0,8,1; 1,2; 1,4; 1,6; Till 3mm; multiple by 0,2 changes; sheetmetal processing should strict controlling dimension; diameter of bore is pressed the light drive fit manufacturing; outer garden diameter in order to use and convenient management, should have type designations on the sheetmetal by the slack running fit manufacturing; this type designations should reflect the numerical value (Kg value) of outer garden size, material thickness (mm value) and the power that withstands shocks of sheetmetal, the main stressed member impulse force bar of protector and hold die head and adopt the quality carbon tool steel manufacturing.The end face of impulse force bar 1* is made spherical surface body.Above-mentioned embodiment also can satisfy deadweight and all kinds of on-the-road requirements of load-carrying within 10 tons.

As supplementary means; need to install protector mode of operation telltale (this is another technology, at this slightly) in automobile cab, the driver can both know the mode of operation of metal rupture disc at any time; allow the driver know very well in one's heart, guarantee that protector is in best mode of operation all the time.In order to ensure safe in utilization, assembly working will carry out in the assembling fixture (this is again an independent technology, at this slightly) of special use, carries out so the replacing safety plate will arrive specialized maintenance unit, and the car owner must not handle privately.

Because when taking place positive or bumping against from beginning to end; the situation of car body distortion can not occur; so be out of shape the driver and conductor's who causes injures and deaths incident can not take place because of operator's compartment yet; so also with regard to indirect protection personnel's safety, the safety strap of present employing and inflatable packer are improved to driver and conductor's security protection technology system.

The present invention is once can repeating the mechanical device of usefulness for a long time, is not decreased ring with restriction impulsive force and catabiotic successively method protection body construction, and its manufactured product can be for the production and the repacking use of various types of automobiles.Because low also can the reconfiguring after collision of productive costs continues to use, the operation and maintenance expense is low, will inevitably cause insider's concern, produces bigger influence to auto manufacturing.

Claims (8)

1. special mechanical device that is used to protect the positive or head and the tail collision safety of automobile; be in a circular metal sleeve that enough rigidity are arranged; impulse force bar and supporting with it die head that holds of trapezoidal column structure are housed; the power consumption metal rupture disc; clamping screw; snap ring ... Deng the metal construction device; be characterized in that the impulse force that will produce in the time of will colliding by the mode of die-cut sheetmetal is limited in general the enclosing of a safety; and in the process of stamping-out sheetmetal continuously, consume the huge energy that has when colliding gradually, to reach the purpose that the protection automobile is not destroyed.

2. impulse force bar according to claim 1 has two, respectively five cylinders that diameter dimension is different is arranged, and arranges by its diameter dimension size order and forms ladder-type structure, as the formpiston use of die-cut metal rupture disc.

3. the appearance similar of two impulse force bars according to claim 2, there have 8 joints to do the cylinder length that formpiston uses on the two impulse force bars to be measure-alike.

4. two impulse force bars according to claim 2 join end to end in the mode of sliding fit, form duplex.The front end of an impulse force bar of back is made the size (14* among Fig. 1) of holding die head, and this just makes this impulse force bar possess the function of holding die head again simultaneously, is used as and holds the use of one of die head.

5. the die head that holds according to claim 1 has two groups, having 8, to hold the die head gauge identical, its bottom surface respectively is shaped on 4 grooves and the cylindrical edge chamfering forms path, uses as grease channel, and this passage can play the effect of getting rid of vapour lock again in car accident takes place.

6. the shape of power consumption metal rupture disc according to claim 1, the faced washer in the similar mechanical component has an opening on it, for dismounting is provided convenience.

7. power consumption metal rupture disc according to claim 1 has two groups, wherein have 1 unusual, its impact resistance exceeds 25% than other each sheetmetal.

8. power consumption metal rupture disc according to claim 1 will be indicated the specification of safety plate and the numerical value of impact resistance on it, for selecting reference for use.

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