CN2647679Y - Screw shearing type vehicle collision energy absorption apparatus - Google Patents

Screw shearing type vehicle collision energy absorption apparatus Download PDF

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Publication number
CN2647679Y
CN2647679Y CN 03248068 CN03248068U CN2647679Y CN 2647679 Y CN2647679 Y CN 2647679Y CN 03248068 CN03248068 CN 03248068 CN 03248068 U CN03248068 U CN 03248068U CN 2647679 Y CN2647679 Y CN 2647679Y
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CN
China
Prior art keywords
threaded
guide rod
thread
line pipe
energy absorption
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Expired - Fee Related
Application number
CN 03248068
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Chinese (zh)
Inventor
雷正保
罗义
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雷正保
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Priority to CN 03248068 priority Critical patent/CN2647679Y/en
Application granted granted Critical
Publication of CN2647679Y publication Critical patent/CN2647679Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a screw shearing type vehicle collision energy absorption apparatus comprising a screw leader, a screw pipe, an electric motor and a bumper component; wherein one end of the screw leader is spirally jointed inside the screw pipe, and the other end holds out of the screw pipe and gets connected with the electric motor. The bumper component is connected with the protruded end of the screw leader or the bottom end of the screw pipe. Before the vehicles collide, the utility model can be automatically flexible according to the driving speed. When the vehicles collide, the utility model can absorb the enormous energy of vehicle collision via the shear distortion of the screw thread, and secure the stable force-distortion feature in the collision, and at the same time avoid the vehicle body from being damaged. After the collision accident, the replacement of the utility model is only required, thereby realizing the objectives of protecting the driver and the vehicle itself.

Description

Screw thread shearing type auto against energy absorption device
Technical field the utility model belongs to the automobile protective device, is specifically related to a kind of auto against energy absorption device.
Background technology is present; ripe automobile protective measure mainly comprises safety air bag, safety strap, crashproof damping (piston type) bumper/spoiler, ABS antiblock device, the crashproof crossbeam of side, side air bag or the like; the essence of these measures all mainly is the safety guard-safeguard to the impact moment driver and crew; and ignored the protection of car, this is the industrial technology feature in international automobile collision protection field.At present all be difficult to avoid when bumping automobile to suffer in various degree damage in the various proof equipment of using on the automobile.And vehicle and personal double insurance should be the primary study directions of auto against protective device.By colliding control structure design theory and method as can be known: the auto against energy mainly absorbs by the destructive large deformation of car body.Want to study and a kind ofly not only protected car but also protected occupant's automotive crash safety new construction just must make it have the ability of big distortion, pulsation-free power-deformation characteristic, huge absorption collision energy.
The summary of the invention technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of screw thread shearing type auto against energy absorption device is provided, and before automobile crashed, this device can be flexible automatically according to the size of the speed of a motor vehicle; When automobile crashed, this device can absorb huge collision energy by the shear deformation of screw thread, and guarantees that collision process has pulsation-free power-deformation characteristic, avoids car body to wreck simultaneously; After automobile collision accident takes place, only need change and get final product, thereby realization had not only been protected passenger's safety but also protected the purpose of automobile itself device of the present utility model.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: it comprises threaded guide rod, threaded line pipe, motor and bumper/spoiler assembly, described threaded guide rod one end is set in the threaded line pipe with thread connection, link to each other outside the other end protruded tube and with motor, the bottom of described bumper/spoiler assembly and threaded guide rod external part or threaded line pipe joins.
As further improvement of the utility model, an end of described threaded guide rod is provided with outside thread, is provided with the negative thread of length greater than external thread length in the threaded line pipe.
Outside thread intensity on the described threaded guide rod is greater than the negative thread intensity of threaded line pipe.
Be provided with guide between described threaded line pipe and the threaded guide rod, an end of threaded line pipe is provided with end cover.
Described internal and external screw thread is Acme thread, square thread, saw thread, round thread or triangle thread.
Described bumper/spoiler assembly comprises catch fence and bumper/spoiler, the fuselage of catch fence and motor is affixed, described threaded guide rod end is fastenedly connected with the moved end lid, motor shaft and moved end lid are fastenedly connected by key, the catch fence that is consolidated with motor links to each other with the moved end lid by bearing, be connected with the stop lid on the catch fence, bumper/spoiler is installed on the catch fence.
Described threaded line pipe rear end is provided with tubing interface and oil pressure sensor, and the threaded line pipe bottom is provided with by pass valve.
Described catch fence or safety lever are provided with crash sensor.
The utility model is installed on automotive front or afterbody, when automobile bumps, impact force acts directly on the threaded guide rod, and be passed on the spiral Contact Pair of threaded guide rod and threaded line pipe, guide rod vertically moves along the threaded line pipe axis, cause the shear deformation of threaded line pipe screw thread, just we usually said " stripped thread "; Absorb huge collision energy by this " stripped thread "; make auto body exempt from damage, simultaneously, because the required power of screw thread " stripped thread " is a constant substantially; can guarantee that collision process has pulsation-free power-deformation characteristic, have the two big advantages of not only protecting car but also protecting occupant safety.
Energy absorption device of the present utility model is under the driving of motor, threaded guide rod is along the threaded line pipe axial-movement, realize the flexible of threaded guide rod, its collapsing length is relevant with Vehicle Speed, car speed sensor can be installed on automobile, by the automobile central controller, the running of control motor, thereby the control guide rod is flexible, the high more then guide rod of the speed of a motor vehicle stretches out long more, and when the speed of a motor vehicle reduced, the guide rod sponson shortened, make it can be applicable to travelling of multiple complicated road conditions such as city, express highway, can effectively reduce bodywork length on the intensive ground of vehicle; At dead ship condition, threaded guide rod can be fully retracted, to effectively reduce the parking area of automobile, shorten the front overhang length of automobile.
The utility model is provided with tubing interface and oil pressure sensor in the threaded line pipe rear end, and it both can be used as the petrol storage tank of deposit automobile with hydraulic oil, also is the work working medium that absorbs energy, heat radiation and off-load; It still brakes the place of storing braking fluid in the master cylinder, has reduced the active mass of automobile effectively, makes automobile lightweight as much as possible.The hydraulic oil of packing in the threaded line pipe, when collision case took place, threaded guide rod can compress the hydraulic oil of threaded line pipe rear end, and the oil pressure that makes the master brake cylinder that is attached thereto raises and realizes the automatic emergency brake braking of automobile.By oil pressure sensor, can realize the anti-lock control of automobile with the pressure transmission of hydraulic oil to the automobile central controller.By pass valve is equipped with in the threaded line pipe bottom, and the pressure sensor transmission signals keeps the oil pressure in the threaded line pipe stable by the control of central controller realization to by pass valve, and the power that acts on the threaded guide rod when making collision is more steady, the safety of adequately protect passenger and automobile.Very violent when collision, pressure raises very fast, and when hydraulic oil had little time by the control arrival master brake cylinder of computer, this by pass valve was just started working, and a part of hydraulic oil is flowed out outside the threaded line pipe, reaches the purpose of off-load; Simultaneously, the outflow of hydraulic oil will inevitably flow down the hydraulic oil curve on road, and what can be the collision case responsibility determines to provide foundation.
On catch fence or safety lever, be provided with crash sensor, during collision in automobile is subjected to the place ahead certain angle scope, crash sensor will be sent to central controller with detected signal, start the brake system of automobile, reduce the harmfulness of auto against effectively for vehicle and occupant safety.
The utility model modern design, simple in structure, cost is low, and is easy installation and reliable, oil pressure sensor, micro-motor, crash sensor etc. all can adopt gauge member.
The utility model both can be made one with vehicle body in the new car manufacturing, also can be used as vehicular spare parts to vehicle refitting.After automobile collision accident took place, only need be changed device of the present utility model and get final product.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is Figure 1A place partial enlarged drawing;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structural representation of the utility model embodiment after bumping;
Scheme drawing when Fig. 5 is loaded on automotive front, automobile low speed driving for the utility model.
Scheme drawing when Fig. 6 is loaded on automotive front, galloping for the utility model.
Fig. 7 is the scheme drawing that concerns of the threaded guide rod collapsing length and the speed of a motor vehicle.
Each label is represented among the figure: 1, threaded guide rod, 2, end cover, 3, threaded line pipe, 4, guide, 5, by pass valve, 6, tubing interface, 7, oil pressure sensor, 8, motor, 9, catch fence, 10, safety lever, 11, moved end lid, 12, the stop lid, 13, bearing, 15, crash sensor, L, threaded guide rod extension elongation, V, the speed of a motor vehicle.
Specific embodiment screw thread shearing type auto against of the present utility model energy absorption device, be to be based upon on the basis of modern structure mechanics, object large deformation characteristic, microelectronic technique, futuramic a kind of length can be according to the flexible automatically energy absorbing device of the speed of a motor vehicle.
Shown in Fig. 1~4, the utility model comprises threaded guide rod 1, threaded line pipe 3, motor 8 and bumper/spoiler assembly, one end of threaded guide rod 1 is provided with outside thread, for guaranteeing that having enough rigidity can alleviate tare again simultaneously, it is designed to the real middle empty hollow stem in two ends; Be provided with the negative thread of length in the threaded line pipe 3 greater than the external thread length of threaded guide rod 1, outside thread intensity is higher than negative thread, in order to improve energy absorption ability, be made into Acme thread, threaded guide rod 1 cover is threaded onto in the threaded line pipe 3, non-threaded connecting section is provided with guide 4 between threaded line pipe 3 and the threaded guide rod 1, and an end of threaded line pipe 1 is provided with end cover 2, is provided with the sealing felt collar in the end cover 2.When automobile bumps, impact force acts directly on the threaded guide rod 1, and be passed on the spiral Contact Pair of threaded guide rod 1 and threaded line pipe 3, threaded guide rod 1 vertically moves in threaded line pipe 3, and, cause the shear deformation of this screw thread and absorb huge collision energy as the screw thread of knife screw cutting pipe 3.Insurance letter assembly comprises catch fence 9 and bumper/spoiler 10; this fence is the rigid body with certain rigidity; can be enclosed with rubber cover outside it; be used for protecting the outer personnel's of car safety; bumper/spoiler 10 is welded on the catch fence 9; it can make different shape according to different automobile types, will be out of shape when bumping, and it is in order to guarantee that attractive in appearance also is for easy for installation that bumper/spoiler 10 makes an integral body with catch fence 9.Catch fence 9 is fixed with the fuselage of motor 8, threaded guide rod 1 end is fastenedly connected with moved end lid 11 with screw, the output shaft of motor 8 is packed in the endoporus of moved end lid 11, both connect by key, the catch fence 9 that is consolidated with motor 8 links to each other with moved end lid 11 by bearing 13, also be connected with stop lid 12 on the catch fence 9, moved end lid 11 is made axial location; During running, moved end lid 11 is with threaded guide rod 1 rotation among catch fence 9 and stop lid 12.Under the driving of motor 8, threaded guide rod 1 is along threaded line pipe 3 axial-movements, realizes the flexible of threaded guide rod 1, and its flexible situation is relevant with Vehicle Speed, the speed of a motor vehicle is high more then stretch out long more.For this reason, can vehicle speed signal be sent to central controller, thereby the running of control motor 8 makes threaded guide rod 1 change rotation contraction in threaded line pipe 3 with the speed of a motor vehicle by car speed sensor.As shown in Figure 5, at low speed driving, city vehicle is intensive or when stopping, threaded guide rod 1 shrinks until whole withdrawals, has reduced bodywork length effectively.As shown in Figure 6, when automobile at running on expressway, under the speed of a motor vehicle condition with higher, danger when bumping also increases thereupon, because square being directly proportional of the collision energy that automobile has and the speed of a motor vehicle, at this moment, threaded guide rod 1 stretches out longer, if bump, then can absorb huge collision energy.Concern scheme drawing as shown in Figure 7 between the threaded guide rod collapsing length and the speed of a motor vehicle, the kinetic energy that this relation is had in the time of can be with reference to running car and the relation of the speed of a motor vehicle are determined.
Be provided with tubing interface 6 and oil pressure sensor 7 in threaded line pipe 3 rear ends, the hydraulic oil of packing in the pipe, it both can be used as the petrol storage tank of deposit automobile with hydraulic oil, also was the work working medium that absorbs energy, heat radiation and off-load; It still brakes the place of storing braking fluid in the master cylinder, has reduced the active mass of automobile effectively, makes automobile lightweight as much as possible.When collision case took place, threaded guide rod 1 can compress the hydraulic oil of threaded line pipe 3 rear ends, and hydraulic fluid pressure is raise, and the oil pressure of the master brake cylinder that is attached thereto is raise, and realized the automatic emergency brake of automobile.By oil pressure sensor 6, can realize the anti-lock control of automobile with the pressure transmission of hydraulic oil to automobile control center; By pass valve 5 is equipped with in threaded line pipe 3 bottoms, and pressure sensor 6 transmission signals keep the oil pressure in the threaded line pipe 3 stable by the control of central controller realization to by pass valve 5, absorb energy and collide steadily the safety of adequately protect passenger and automobile thereby make.When collision was very violent, pressure raise very fast, and when hydraulic oil had little time by the control arrival master brake cylinder of computer, this by pass valve 5 was just started working, and a part of hydraulic oil is flowed out outside the threaded line pipe 3, reaches the oil pressure stable status in the control threaded line pipe 3; Simultaneously, because accident takes place, the outflow of hydraulic oil will inevitably be at the hydraulic oil curve of next spurting of road upper reaches, and what can be the collision case responsibility determines to provide foundation, the collision velocity of vehicle in the time of can judging collision by it, collision energy.
The utility model is provided with crash sensor 15 on catch fence 9, during high-speed crash in automobile is subjected to the place ahead certain angle scope, crash sensor 15 will detect the signal of automobile deceleration suddenly and be sent to central controller, start the brake system of automobile, effectively reduce the harmfulness of auto against for vehicle and personal safety.
Below principle of work of the present utility model is further described below: when automobile stops, perhaps under low speed of a motor vehicle motoring condition, or the city driving vehicle is when intensive, car speed sensor is sent to central computer with vehicle speed signal, make motor 8 counter-rotatings, threaded guide rod 1 rotates in threaded line pipe 3 and shrinks until whole withdrawals, reduces the bodywork length when stopping effectively.When automobile during at running on expressway, under the high situation of the speed of a motor vehicle, the danger of collision also increases thereupon, at this moment, by the data that car speed sensor sends, central computer is by judging, threaded guide rod 1 is outwards extended, absorb energy with actv. when bumping.When automobile bumps inevitably, impact force acts directly on the threaded guide rod 1, and be passed on the Contact Pair of threaded guide rod 1 and threaded line pipe 3, threaded guide rod 1 longitudinal sliding motion in threaded line pipe 3, as the screw thread of knife screw cutting pipe 3, cause the shear deformation of this screw thread and absorb huge collision energy.Make auto body exempt from damage, reach the double effects of not only protecting car but also protecting personal safety.
During high-speed crash in automobile is subjected to the place ahead certain angle scope, the crash sensor 15 that is installed on the catch fence 9 will detect collision alarm, the sensor contact closure, collision alarm is sent to central computer, start a series of actions such as self-actuating brake of automobile, effectively reduce the harmfulness of auto against for vehicle and personal safety, simultaneously, central computer is also accepted the signal that sends from the oil pressure sensor in the threaded line pipe 36, realization makes the auto against characteristic near perfect condition to the constant control of oil pressure.
The utility model is applicable in the new car manufacturing makes one with vehicle body, also is applicable to as vehicular spare parts vehicle refitting.

Claims (9)

1, a kind of screw thread shearing type auto against energy absorption device, it is characterized in that it comprises threaded guide rod (1), threaded line pipe (3), motor (8) and bumper/spoiler assembly, described threaded guide rod (1) one end is set in the threaded line pipe (3) with thread connection, link to each other outside the other end protruded tube and with motor (8), the bottom of described bumper/spoiler assembly and threaded guide rod (1) external part or threaded line pipe (3) joins.
2, screw thread shearing type auto against energy absorption device according to claim 1 is characterized in that an end of described threaded guide rod (1) is provided with outside thread, is provided with the negative thread of length greater than external thread length in the threaded line pipe (3).
3, screw thread shearing type auto against energy absorption device according to claim 2 is characterized in that outside thread intensity on the described threaded guide rod (1) is greater than the negative thread intensity of threaded line pipe (3).
4, screw thread shearing type auto against energy absorption device according to claim 3 is characterized in that being provided with guide (4) between described threaded line pipe (3) and the threaded guide rod (1), and an end of threaded line pipe (3) is provided with end cover (2).
5, screw thread shearing type auto against energy absorption device according to claim 4 is characterized in that described internal and external screw thread is Acme thread, square thread, saw thread, round thread or triangle thread.
6, according to the described screw thread shearing type auto against of arbitrary claim energy absorption device in the claim 1~5, it is characterized in that described bumper/spoiler assembly comprises catch fence (9) and bumper/spoiler (10), catch fence (9) is affixed with the fuselage of motor (8), described threaded guide rod (1) end is fastenedly connected with moved end lid (11), (11) Tong Guo Key are fastenedly connected for the output shaft of motor (8) and moved end lid, the catch fence (9) that is consolidated with motor (8) links to each other with moved end lid (11) by bearing (13), be connected with stop lid (12) on the catch fence (9), bumper/spoiler (10) is installed on the catch fence (9).
7, screw thread shearing type auto against energy absorption device according to claim 6 is characterized in that described threaded line pipe (3) rear end is provided with tubing interface (6) and oil pressure sensor (7), and the threaded line pipe bottom is provided with by pass valve (5).
8, screw thread shearing type auto against energy absorption device according to claim 7 is characterized in that described catch fence (9) or safety lever (10) are provided with crash sensor (15).
9, screw thread shearing type auto against energy absorption device according to claim 7 is characterized in that described threaded guide rod (1) is a pole spar, or is the real middle empty hollow tubulars in two ends.
CN 03248068 2003-06-20 2003-06-20 Screw shearing type vehicle collision energy absorption apparatus Expired - Fee Related CN2647679Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03248068 CN2647679Y (en) 2003-06-20 2003-06-20 Screw shearing type vehicle collision energy absorption apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03248068 CN2647679Y (en) 2003-06-20 2003-06-20 Screw shearing type vehicle collision energy absorption apparatus

Publications (1)

Publication Number Publication Date
CN2647679Y true CN2647679Y (en) 2004-10-13

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ID=34327245

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Application Number Title Priority Date Filing Date
CN 03248068 Expired - Fee Related CN2647679Y (en) 2003-06-20 2003-06-20 Screw shearing type vehicle collision energy absorption apparatus

Country Status (1)

Country Link
CN (1) CN2647679Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103600711A (en) * 2013-12-02 2014-02-26 黑龙江工程学院 Active-extension energy-absorption bumper of minibus
CN106089148A (en) * 2011-08-22 2016-11-09 井下技术有限责任公司 Downhole tool
WO2017063600A1 (en) * 2015-10-16 2017-04-20 中南大学 Telescopic energy-absorbing device for rail vehicle collisions

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106089148A (en) * 2011-08-22 2016-11-09 井下技术有限责任公司 Downhole tool
CN106089145A (en) * 2011-08-22 2016-11-09 井下技术有限责任公司 A kind of plug for downhole tool
CN103600711A (en) * 2013-12-02 2014-02-26 黑龙江工程学院 Active-extension energy-absorption bumper of minibus
CN103600711B (en) * 2013-12-02 2015-09-30 黑龙江工程学院 Utility van initiatively extends energy-absorbing bumper
WO2017063600A1 (en) * 2015-10-16 2017-04-20 中南大学 Telescopic energy-absorbing device for rail vehicle collisions
US10279822B2 (en) 2015-10-16 2019-05-07 Central South University Telescopic type collision energy absorption device for rail vehicle

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee