CN113942464A - Anticollision roof beam device and car before car - Google Patents

Abstract

The invention discloses an automobile front anti-collision beam device and an automobile, comprising an anti-collision beam and an anti-collision protection assembly; the anti-collision beam comprises an energy absorption box and an anti-collision cross beam; the collision protection assembly comprises a swing arm and a driving mechanism; the swing arm has an initial position and a swing position on the anti-collision beam; when the swing arm is in the swing position, at least part of the swing arm swings to the front side of the anti-collision beam; at least one roller is mounted on the swing arm, the roller at least partially protruding from a front side of the swing arm. When the front side of the automobile collides with an object, the swing arm can be popped forwards, the roller can be contacted with the object, the roller is approximately perpendicular to the moving direction of the collided object and is converted into the direction approximately parallel to the collided object, so that the deformation of the cabin is reduced in a high-speed collision accident, the invasion of parts in the cabin to a cab and a co-cab can be reduced, and the automobile passenger car can be effectively protected.

Description

Anticollision roof beam device and car before car

Technical Field

The invention relates to the technical field of automobile protection, in particular to an automobile front anti-collision beam device and an automobile.

Background

The automobile is a common vehicle in daily life of people, and traffic accidents often occur. How to effectively reduce the deformation of the front part of the automobile during collision so as to protect personnel in the automobile and reduce the automobile damage is one of the important directions of the current automobile development.

When the existing automobile design considers the collision between an automobile and an object, the collision safety performance of the automobile is measured by the energy absorption collapse of a front anti-collision beam and the energy absorption collapse of the front and back directions of an engine room. The energy-absorbing crumple can play a certain protection role, and the vehicle damage degree is also larger when the automobile crumple is simultaneously crumpled, so the safety protection performance of the automobile still needs to be improved.

Disclosure of Invention

The invention aims to provide an automobile front anti-collision beam device capable of improving the safety protection performance of an automobile and the automobile.

The technical scheme of the invention provides an automobile front anti-collision beam device, which comprises an anti-collision beam and an anti-collision protection assembly arranged on the anti-collision beam;

the anti-collision beam comprises two energy absorption boxes arranged at left and right intervals and an anti-collision cross beam arranged on the two energy absorption boxes;

the collision protection assembly comprises a swing arm which is pivotally connected with the anti-collision cross beam and a driving mechanism which is used for driving the swing arm to swing towards the front side of the anti-collision cross beam;

the swing arm has an initial position and a swing position on the anti-collision beam;

when the swing arm is at the initial position, the swing arm is positioned between the front surface and the rear surface of the anti-collision beam;

when the swing arm is in the swing position, at least part of the swing arm swings to the front side of the anti-collision beam;

at least one roller is arranged on the swing arm, and the roller at least partially protrudes out of the front side of the swing arm;

the driving mechanism is installed on the energy absorption box, and the swinging arm is connected with the output end of the driving mechanism.

When the front side of the automobile collides with an object, the swing arm can be driven by the driving mechanism to forwards pop out of a front decorative plate of the automobile, the roller can be contacted with the object, the roller is approximately perpendicular to the motion direction of the collided object and is converted into the direction approximately parallel to the collided object, so that the deformation of the cabin is reduced in a high-speed collision accident, the deformation amount and the maintenance cost of the cabin can be reduced, meanwhile, the invasion of parts in the cabin to a cab and a copilot can be reduced, and the effective protection is provided for personnel in the automobile.

Further, the driving mechanism comprises an electromagnet and a permanent magnet;

the electromagnet is arranged on the energy absorption box, and the permanent magnet is arranged on the swinging arm;

when the electromagnet is electrified, the electromagnet is repelled with the permanent magnet.

The driving mechanism is a first structure and is composed of an electromagnet and a permanent magnet. When the electromagnet is not electrified, the swinging arm is kept at the initial position, when the electromagnet is electrified, the electromagnet is repelled with the permanent magnet, so that the swinging arm is driven to rotate forwards, and the swinging arm swings to the front side of the anti-collision cross beam and penetrates out of a front decorative plate of the automobile.

Furthermore, the driving mechanism is a servo mechanism, the servo mechanism is installed on the energy absorption box, and a piston rod of the servo mechanism is hinged to the swing arm.

This is a second configuration of the drive mechanism, which is a servo mechanism. When the servo mechanism is not operated, the piston rod is contracted, the swing arm is kept at the initial position, and when the servo mechanism is operated, the piston rod is extended out, so that the swing arm is driven to rotate forwards, and the swing arm swings to the front side of the anti-collision cross beam and penetrates out of a front decorative plate of the automobile.

Further, the driving mechanism comprises a motor, a motor gear and a transmission tooth part;

the motor is installed on the energy absorption box, the motor gear is installed on the output end of the motor, the transmission tooth part is installed on the swing arm, and the motor gear is meshed with the transmission tooth part.

The driving mechanism is of a third structure and consists of a motor, a motor gear and a transmission tooth part. When the motor does not work, the swing arm is kept at the initial position, and when the motor works, the motor gear rotates and drives the transmission tooth part to rotate, so that the swing arm is driven to rotate forwards, swings to the front side of the anti-collision cross beam and penetrates out of a front decorative plate of the automobile.

Further, an arc-shaped guide groove is formed in one side, facing the swing arm, of the anti-collision cross beam;

a limiting pin is arranged on one side, facing the guide groove, of the swinging arm;

the limiting pin is inserted into the guide groove, and the limiting pin can slide in the guide groove.

The guide groove and the limiting pin are arranged to guide and limit the swinging of the swinging arm.

Further, the front end of the guide groove is provided with a guide groove pit;

the positioning pin comprises a sleeve fixedly connected with the swing arm, a sliding pin connected with the sleeve in a sliding mode and an elastic piece used for driving the sliding pin to move towards the guide groove;

the elastic piece is connected between the sleeve and the sliding pin;

the slide pin is clearance-fitted in the guide groove and is insertable in the guide groove recess.

The sliding pin can be inserted into the guide groove pit and cannot automatically separate from the guide groove pit, and the swinging arm can be prevented from swinging backwards.

Further, a vertically extending sleeve opening is provided on the sleeve;

and a handle is arranged on the sliding pin, penetrates through the sleeve opening and can slide up and down in the sleeve opening.

The swing arm can be repositioned by pulling the handle upward so that the sliding pin is pulled out of the guide slot recess and the sliding pin is returned to the guide slot.

Further, a swing arm groove is arranged on the front side of the swing arm;

the roller is mounted in the groove of the swing arm through a roller rotating shaft, and the roller rotating shaft extends along the vertical direction;

the diameter of the roller is larger than the groove depth of the groove of the swing arm, and at least part of the roller protrudes out of the front side of the groove of the swing arm.

Through installing the gyro wheel in the swing arm recess, it is too many to avoid the gyro wheel to stand out in the swing arm, and the installation stability of easy to assemble gyro wheel, promotion gyro wheel can also reduce the size of swing arm fore-and-aft direction.

Furthermore, the anti-collision beam is provided with two sets of impact protection assemblies which are symmetrically arranged left and right, so that the front part of the engine room can be protected in an all-round manner.

The technical scheme of the invention also provides an automobile which comprises a traveling computer, an automobile battery, an engine room, a front decorative plate and the automobile front anti-collision beam device in any one technical scheme;

the front decorative plate is arranged at the front end of the engine room;

the automobile front anti-collision beam device is arranged in the cabin;

a weakened area is arranged on the front decorative plate at a position corresponding to the swing arm;

the driving mechanism is electrically connected with the automobile battery, an automatic control switch is arranged on a lead between the driving mechanism and the automobile battery, and the automatic control switch is in communication connection with the traveling crane computer;

at least a portion of the swing arm protrudes from the weakened area to a front side of the nacelle when the swing arm is in the swing position.

When the front side of the automobile collides with an object, the swing arm can be driven by the driving mechanism to forwards pop out of a front decorative plate of the automobile, the roller can be contacted with the object, the roller is approximately perpendicular to the motion direction of the collided object and is converted into the direction approximately parallel to the collided object, so that the deformation of the cabin is reduced in a high-speed collision accident, the deformation amount and the maintenance cost of the cabin can be reduced, meanwhile, the invasion of parts in the cabin to a cab and a copilot can be reduced, and the effective protection is provided for personnel in the automobile.

By adopting the technical scheme, the method has the following beneficial effects:

according to the automobile front anti-collision beam device and the automobile, when the front side of the automobile collides with an object, the swing arm can be popped forwards, the roller can be contacted with the object, the roller is converted into the direction approximately parallel to the collided object from the direction approximately perpendicular to the motion direction of the collided object, so that the deformation of an engine room is reduced in a high-speed collision accident, the deformation amount and the maintenance cost of the engine room can be reduced, meanwhile, the parts in the engine room can be prevented from invading a cab and a passenger cab, and effective protection is provided for the personnel in the automobile.

Drawings

Fig. 1 is a perspective view of a front impact beam apparatus for an automobile according to an embodiment of the present invention;

FIG. 2 is a front view of a front impact beam assembly for a vehicle according to an embodiment of the present invention;

FIG. 3 is a perspective view of the swing arm;

FIG. 4 is a top view of the swing arm mounted to the bumper beam;

FIG. 5 is a schematic view of a guide slot and guide slot pocket disposed in an impact beam;

FIG. 6 is a schematic structural view of a spacing pin;

FIG. 7 is a schematic view of the swing arm swinging forward with the roller in contact with the object;

FIG. 8 is a schematic view of the servo mechanism connected between the crash box and the swing arm;

FIG. 9 is a schematic view of the arrangement of the driving mechanism being a motor, motor gears and transmission gears;

FIG. 10 is a schematic view of an automobile according to an embodiment of the present invention;

FIG. 11 is a schematic view of the swing arm extending from the front fascia;

FIG. 12 is a schematic view of the swing arm extending from the front fascia with the roller in contact with an object;

FIG. 13 is a schematic view of a front fascia with a weakened area provided thereon.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 4 and fig. 7, a front impact beam apparatus for an automobile according to an embodiment of the present invention includes an impact beam 1 and an impact protection module 2 mounted on the impact beam 1.

The anti-collision beam 1 comprises two energy absorption boxes 11 arranged at left and right intervals and an anti-collision beam 12 arranged on the two energy absorption boxes 11.

The crash protection assembly 2 comprises a swing arm 21 which is pivotably connected to the crash cross member 12 and a drive mechanism 22 for driving the swing arm 21 to swing toward the front side of the crash cross member 12.

The oscillating arm 21 has an initial position and an oscillating position on the crash cross member 11.

When the swing arm 21 is in the initial position, the swing arm 21 is positioned between the front and rear surfaces of the impact beam 12.

When the oscillating arm 21 is in the oscillating position, at least part of the oscillating arm 21 is oscillated to the front side of the impact beam 12.

At least one roller 23 is mounted on the oscillating arm 21, the roller 23 at least partially protruding from the front side of the oscillating arm 21.

The driving mechanism 22 is mounted on the crash box 11, and the swing arm 21 is connected to an output end of the driving mechanism 22.

The automobile front anti-collision beam device provided by the invention is mainly characterized in that the anti-collision beam 1 is additionally provided with the collision protection component 2, and the anti-collision beam 1 still adopts the existing structure and has the crumpling function. The crash protection assembly 2 can be ejected forwards as required to contact the object 7 to change the force direction of the vehicle head.

In particular, the impact beam 1 comprises two crash boxes 11 and one impact beam 12. The two crash boxes 11 are arranged at left and right intervals, and the anti-collision beam 12 is connected to the front ends of the two crash boxes 11. The crash box 11 is used for connecting with a longitudinal beam on a vehicle body. The energy absorption box 11 is of a box body structure, and can be collapsed to absorb energy when a vehicle collides. The anti-collision beam 12 is also called an anti-collision main beam and is arranged at the front side of the energy absorption box 11, and the anti-collision beam 12 can also be collapsed to absorb energy during vehicle collision. The front end of the energy absorption box 11 is welded with the rear surface of the anti-collision cross beam 12, and the rear end of the energy absorption box can be connected with a longitudinal beam on a vehicle body through a bolt.

The collision protection assembly 2 comprises a swing arm 21, a drive mechanism 22 and a roller 23. The oscillating arm 21 is connected to the bumper beam 12 by an oscillating arm pivot shaft 20, and the oscillating arm pivot shaft 20 is arranged in the vertical direction. The swing arm pivot 20 is located close to the crash box 11 in the direction along the extending direction of the impact beam 12 or the vehicle width direction, and the swing arm and the pivot 20 are located outside the crash box 11. So that the swing arm 21 can swing forwardly and outwardly from the middle of the impact beam 12 centering on the swing arm rotary shaft 20.

The roller 23 is mounted on the swing arm 21 by a roller shaft extending in the vertical direction. The roller 23 is rotatable in a horizontal direction, a part of the edge of the roller 23 is located on the front side of the swing arm 21, and a part of the roller 23 is protruded for contact with an object to change the force direction of the vehicle.

A torsion spring 25 is sleeved on the swing arm shaft 20, and the torsion spring 25 is connected with the swing arm 21. The torsion spring 25 is provided to act on the swing arm 21, and can enable the swing arm 21 to be held at the initial position.

A baffle 13 is provided on the crash box 11 for limiting the swing arm 21 at an initial position so that the swing arm 21 cannot swing backward.

The driving mechanism 22 is installed on the crash box 11, and the driving mechanism 22 is used for driving the swing arm 21 to swing towards the front side of the anti-collision beam 12, so that the swing arm 21 drives the roller 23 thereon to swing forwards and outwards, and finally the front decorative plate of the automobile can be broken and extends out of the front decorative plate, so that the roller 23 is in contact with the object 7. The object 7 may be a guardrail on a road side, an obstacle on the road, etc.

The driving mechanism 22 may be a motor driving mechanism, a servo driving mechanism, an electromagnetic driving mechanism, etc., and the swing arm 21 is connected to an output end of the driving mechanism 22.

The automobile front anti-collision beam device is arranged in an engine room of an automobile, and the engine room is a cabin of an automobile head and can be used for installing an engine or a motor and the like.

The drive mechanism 22 is controlled by the vehicle's driving computer. The vehicle computer can obtain information such as vehicle speed, barrier distance, barrier type and the like through a sensor and the like on the vehicle body, and estimate the impact force generated when the vehicle collides with the object 7. The information such as the vehicle speed, the obstacle distance, the obstacle type and the like can be realized by the technologies such as a sensor, a camera and the like in the prior art, and the detailed description is not needed.

The impact force F is (MV1-MV2)/T, where M is the mass of the vehicle, V1 is the current speed, V2 is the speed at impact, T is the impact contact time, and the contact time can be estimated as a range from the vehicle speed. The above formula can approximately calculate the impact force generated at the time of collision.

A crash safety force F0 is set in advance in the vehicle computer. If when the vehicle runs at a low speed, when F is estimated to be smaller than F0, the collision damage is small, the requirement can be met by the energy absorption of the anti-collision beam 1, the driving mechanism 22 does not work, the swing arm 21 does not pop up, and the secondary damage to pedestrians can be avoided.

If the vehicle is driven at a high speed, when F is estimated to be larger than F0, before the vehicle contacts with the object 7, the vehicle computer firstly sends a signal to the driving mechanism 22, the driving mechanism 22 works to drive the swinging arm 21 to swing forwards, and a front decorative plate or an air inlet grille on the front face of the vehicle is broken and extends out of the front side of the head of the vehicle, so that the roller 23 contacts with the object 7 firstly, and the roller 23 rotates to buffer the impact force with the object 7. After the swing arm 21 swings forwards, the swing arm 21 forms an included angle with the vehicle width direction, as shown in fig. 7, the swing arm 21 is almost vertical to the anti-collision beam 12, rolling friction is formed between the roller 23 and the object 7, the stress direction of the vehicle head can be changed, and the motion direction which is almost vertical to the collided object 7 is converted into the direction which is almost parallel to the collided object 7, so that the deformation of a cabin is reduced in a high-speed collision accident, the deformation amount and the maintenance cost of the cabin can be reduced, meanwhile, the invasion of parts in the cabin to a cab and a passenger cab can be reduced, and effective protection is provided for personnel in the vehicle.

In one embodiment, as shown in FIGS. 1-4, the drive mechanism 22 includes an electromagnet 221 and a permanent magnet 222.

The electromagnet 221 is attached to the crash box 11, and the permanent magnet 222 is attached to the swing arm 21.

When the electromagnet 221 is energized, the electromagnet 221 repels the permanent magnet 222.

This is a first configuration of the drive mechanism 22, which is composed of an electromagnet 221 and a permanent magnet 222. The electromagnet 221 is connected with a power supply of the automobile.

When the electromagnet 221 is not energized, the oscillating arm 21 is held at the initial position by the torsion spring 25. When a driving computer sends a signal to require the driving mechanism 22 to work, a circuit between the electromagnet 221 and the automobile power supply is conducted, and after the electromagnet 221 is electrified, the electromagnet is repelled with the permanent magnet 222, so that the swinging arm 21 is driven to rotate forwards, and the swinging arm 21 swings to the front side of the anti-collision cross beam 12 and penetrates through a front decorative plate or an air inlet grille of the automobile.

If the permanent magnet 222 is an N-pole magnet, the electromagnet 221 is also an N-pole magnet after being energized; if the permanent magnet 222 is an S-pole magnet, the electromagnet 221 is also an S-pole magnet when energized. The magnets with stronger magnetism can be selected and the number of the magnets can be set properly so as to meet the force requirement of driving the swing arm 21 to swing and break the front decorative plate.

For example, an elongated electromagnet 221 may be attached between the two crash boxes 11 via a bracket, and an elongated permanent magnet 222 may be attached to the rear side of the swing arm 21, thereby increasing the repulsive force therebetween.

In this embodiment, the permanent magnet 222 is the output of the drive mechanism 22.

As shown in fig. 10, when the vehicle is installed, the electromagnet 221 is connected to the vehicle power supply 6 through a wire, and an automatic control switch 8 is provided on the wire, and the automatic control switch 8 may be a switch having a starting device and may be controlled by a signal. The automatic control switch 8 is in communication connection with the traveling computer 5, and the automatic control switch and the traveling computer can be in electric signal connection or communication signal connection. The running computer 5 can control the on-off of the automatic control switch 8.

When the driving computer 5 detects that the driving mechanism 22 is not required to be started, the signal is not sent to the automatic control switch 8, the automatic control switch 8 keeps a closed circuit, and the electromagnet 221 is not electrified.

When the driving computer 5 detects that the driving mechanism 22 needs to be started, the driving computer sends a signal to the automatic control switch 8, the automatic control switch 8 starts a circuit, and the electromagnet 221 is electrified.

In one embodiment, as shown in fig. 8, the driving mechanism 22 is a servo 223, the servo 223 is mounted on the crash box, and a piston rod 224 of the servo 223 is hinged with the swing arm 21.

The driving mechanism with the second structure is a servo mechanism, and can adopt an oil cylinder or an air cylinder. When the servo 223 is not operated, the piston rod 224 is contracted, the swing arm 21 is kept at the initial position, when the servo 223 is operated, the piston rod 224 is extended, so that the swing arm 21 is driven to rotate forwards, and the swing arm 21 swings to the front side of the anti-collision beam 12 and penetrates through a front decorative plate or an air inlet grille of the automobile.

The piston rod 224 is connected to the swing arm 21 by a hinge.

In this embodiment, the piston rod 224 is the output end of the drive mechanism 22.

The servo mechanism is provided with a starting device, and when the starting device is electrified, the servo mechanism works, and the oil cylinder or the air cylinder extends out. When the starting device is not electrified when electrified, the servo mechanism stops running, and the oil cylinder or the air cylinder retracts.

When installed, the starting device in the servomechanism is connected to the vehicle power supply 6 by means of a wire, as shown in fig. 10.

When the driving computer 5 detects that the driving mechanism 22 is not required to be started, the signal is not sent to the automatic control switch 8, the automatic control switch 8 keeps a closed circuit, the starting device is not electrified, and the servo mechanism does not run.

When the driving computer 5 monitors that the driving mechanism 22 needs to be started, the driving computer sends a signal to the automatic control switch 8, the automatic control switch 8 starts a circuit, the starting device is electrified, and the servo mechanism works.

In one embodiment, as shown in FIG. 9, the drive mechanism 22 includes a motor 225, a motor gear 226, and gearing teeth 227.

The motor 225 is installed on the crash box 11, the motor gear 226 is installed on the output end of the motor 225, the transmission tooth portion 227 is installed on the swing arm 21, and the motor gear 226 is engaged with the transmission tooth portion 227.

The driving tooth portion 227 may be the entire gear or a part of the gear.

This is a third structure of the drive mechanism 22, which is composed of a motor 225, a motor gear 226, and a transmission gear portion 227. When the motor 225 is not operated, the swing arm 21 is kept at the initial position, and when the motor 225 is operated, the motor gear 226 rotates and drives the transmission tooth portion 226 to rotate, so that the swing arm 21 is driven to rotate forwards, and the swing arm 21 swings to the front side of the anti-collision beam 12 and penetrates through a front decorative plate or an air inlet grille of the automobile.

In this exemplary embodiment, the gearing 227 is an output of the drive 22.

As shown in fig. 10, when installed, the motor 225 is connected to the vehicle power supply 6 by a wire.

When the driving computer 5 detects that the driving mechanism 22 is not required to be started, the signal is not sent to the automatic control switch 8, the automatic control switch 8 keeps a closed circuit, the motor 225 is not electrified, and the motor 225 does not run.

When the driving computer 5 monitors that the driving mechanism 22 needs to be started, the driving computer sends a signal to the automatic control switch 8, the automatic control switch 8 starts a circuit, the motor 225 is electrified, and the motor 225 works.

In one embodiment, as shown in fig. 3-4, an arcuate guide slot 14 is provided on the side of the impact beam 12 facing the swing arm 21. A stopper pin 24 is provided on the swing arm 21 on the side facing the guide groove 14. The stopper pin 24 is inserted into the guide groove 14, and the stopper pin 24 can slide in the guide groove 14.

The clearance fit between the guide slot 14 and the limit pin 24 can provide guidance and limit for the swing of the swing arm 21.

In one embodiment, as shown in fig. 4-6, the leading end of guide slot 14 has a guide slot recess 141.

The positioning pin 24 includes a sleeve 241 fixedly connected to the swing arm 21, a slide pin 242 slidably connected to the sleeve 241, and an elastic member 243 for driving the slide pin 242 to move toward the guide groove 14. The elastic member 243 is connected between the sleeve 241 and the slide pin 242.

The slide pin 242 is clearance-fitted in the guide groove 14 and can be inserted in the guide groove recess 141.

The guide groove recess 141 is deeper than the guide groove 14. The positioning pin 24 is a telescopic pin, and the slide pin 242 thereof can be telescopic with respect to the sleeve 241. The elastic member 243 may be a spring, an elastic piece, or the like, for driving the slide pin 242 downward.

When the swing arm 21 is driven to swing to the maximum angle, the slide pin 242 can be inserted into the guide groove recess 141 without automatically coming out of the guide groove recess 141, and the swing arm 21 can be prevented from swinging backward after the roller 23 comes into contact with the object 7.

In one embodiment, as shown in FIG. 6, a vertically extending sleeve opening 2411 is provided in the sleeve 241. A handle 244 is provided on the slide pin 242, and the handle 244 passes through the sleeve opening 2411 and can slide up and down in the sleeve opening 2411. The swing arm 21 can be repositioned by pulling up on the handle 2411 such that the slide pin 242 is pulled out of the guide slot recess 141 and the slide pin 242 is returned to the guide slot 14.

In one of the embodiments, as shown in fig. 3, a swing arm groove 211 is provided on the front side of the swing arm 21.

The roller 23 is installed in the swing arm groove 211 by a roller shaft, which extends in a vertical direction.

The diameter of the roller 23 is larger than the groove depth of the swing arm groove 211, and at least a part of the roller 23 protrudes from the front side of the swing arm groove 211.

Through installing gyro wheel 23 in swing arm recess 211, avoid gyro wheel 23 to outstanding in swing arm 21 too much, facilitate the installation gyro wheel 23, promoted the installation stability of gyro wheel 23, can also reduce the size of swing arm 21 fore-and-aft direction.

A plurality of rollers 23 may be disposed at intervals on the swing arm 21 as needed.

In one embodiment, two sets of impact protection assemblies 2 which are symmetrically arranged left and right are arranged on the anti-collision beam 1, so that the front part of the cabin can be protected in an all-around manner.

As shown in fig. 10 to 13, an embodiment of the present invention provides an automobile, which includes a driving computer 5, an automobile battery 6, an engine room 3, a front bumper 4, and the front bumper device of the automobile according to any of the embodiments.

A front fascia 4 is mounted to the front end of the nacelle 2. The automobile front anti-collision beam device is arranged in the cabin.

A weakened region 41 is provided on the front fender 4 at a position corresponding to the swing arm 21.

The driving mechanism 22 is electrically connected with the automobile battery 6, an automatic control switch 8 is arranged on a lead between the driving mechanism 22 and the automobile battery 6, and the automatic control switch 8 is in communication connection with the traveling computer 5.

At least part of the oscillating arm 21 protrudes from the weakened area 41 to the front side of the nacelle when the oscillating arm 21 is in the oscillating position.

The drive computer 5 is generally installed on the front side of the cab. The car battery 6 is typically mounted in the cabin 3. A front fascia 4 is mounted to the front end of the nacelle 3. The nacelle 3 is a cabin at the head of the vehicle and is used for mounting an engine, a motor, a battery, and the like.

The front impact beam device of the automobile is arranged in the cabin 3, and the swing arm 21 faces the front decorative plate 4. The front decorative plate 4 is a decorative plate on a front bumper and may be a part of an intake grill. A weakened area 41 is provided on the front decorative plate 4, and the connection strength of the weakened area 41 can be weakened by providing grooves, score lines and the like around the weakened area 41, so that the end of the swing arm 21 can conveniently break the weakened area 41 and penetrate through a broken hole corresponding to the broken weakened area 41.

When the traveling computer 5 estimates that F is less than F0 and the driving mechanism 22 does not need to be started, no signal is sent to the automatic control switch 8, the automatic control switch 8 keeps a closed circuit, and the driving mechanism 22 does not operate.

When the traveling computer 5 estimates that F is larger than F0 and detects that the driving mechanism 22 needs to be started, the traveling computer sends a signal to the automatic control switch 8, the automatic control switch 8 starts a circuit, and the driving mechanism 22 operates. The driving mechanism 22 drives the swing arm 21 to swing forwards, breaks the weakened area 41 on the front decorative plate 4 on the front face of the automobile and extends out of the front side of the automobile head, so that the roller 23 is firstly contacted with the object 7, and the roller 23 rotates to buffer the impact force with the object 7. After the swing arm 21 swings forwards, the swing arm 21 forms an included angle with the vehicle width direction, as shown in fig. 7, the swing arm 21 is almost vertical to the anti-collision beam 12, rolling friction is formed between the roller 23 and the object 7, the stress direction of the vehicle head can be changed, and the motion direction which is almost vertical to the collided object 7 is converted into the direction which is almost parallel to the collided object 7, so that the deformation of a cabin is reduced in a high-speed collision accident, the deformation amount and the maintenance cost of the cabin can be reduced, meanwhile, the invasion of parts in the cabin to a cab and a passenger cab can be reduced, and effective protection is provided for personnel in the vehicle.

The sensors, detectors, cameras and the like can be arranged in the locomotive, the engine room and the cab as required to obtain the information of the road condition of the traveling crane for analysis by a traveling crane computer.

The way of analyzing the traffic information by the driving computer can refer to the content in the prior art, and is not described in detail herein.

According to the needs, the above technical schemes can be combined to achieve the best technical effect.

The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.

Claims (10)

1. The front anti-collision beam device of the automobile is characterized by comprising an anti-collision beam and an anti-collision protection assembly arranged on the anti-collision beam;

the anti-collision beam comprises two energy absorption boxes arranged at left and right intervals and an anti-collision cross beam arranged on the two energy absorption boxes;

the collision protection assembly comprises a swing arm which is pivotally connected with the anti-collision cross beam and a driving mechanism which is used for driving the swing arm to swing towards the front side of the anti-collision cross beam;

the swing arm has an initial position and a swing position on the anti-collision beam;

when the swing arm is at the initial position, the swing arm is positioned between the front surface and the rear surface of the anti-collision beam;

when the swing arm is in the swing position, at least part of the swing arm swings to the front side of the anti-collision beam;

at least one roller is arranged on the swing arm, and the roller at least partially protrudes out of the front side of the swing arm;

the driving mechanism is installed on the energy absorption box, and the swinging arm is connected with the output end of the driving mechanism.

2. The front impact beam apparatus for vehicles according to claim 1, wherein the driving mechanism includes an electromagnet and a permanent magnet;

the electromagnet is arranged on the energy absorption box, and the permanent magnet is arranged on the swinging arm;

when the electromagnet is electrified, the electromagnet is repelled with the permanent magnet.

3. The automobile front anti-collision beam device according to claim 1, characterized in that the driving mechanism is a servo mechanism, the servo mechanism is mounted on the energy absorption box, and a piston rod of the servo mechanism is hinged with the swing arm.

4. The automobile front impact beam device according to claim 1, wherein the driving mechanism includes a motor, a motor gear and a transmission gear portion;

the motor is installed on the energy absorption box, the motor gear is installed on the output end of the motor, the transmission tooth part is installed on the swing arm, and the motor gear is meshed with the transmission tooth part.

5. The front impact beam device for automobiles according to claims 1 to 4, wherein an arc-shaped guide groove is provided on a side of said impact beam facing said swing arm;

a limiting pin is arranged on one side, facing the guide groove, of the swinging arm;

the limiting pin is inserted into the guide groove, and the limiting pin can slide in the guide groove.

6. The automobile front impact beam device according to claim 5, wherein a front end of the guide groove has a guide groove recess;

the positioning pin comprises a sleeve fixedly connected with the swing arm, a sliding pin connected with the sleeve in a sliding mode and an elastic piece used for driving the sliding pin to move towards the guide groove;

the elastic piece is connected between the sleeve and the sliding pin;

the slide pin is clearance-fitted in the guide groove and is insertable in the guide groove recess.

7. The automobile front impact beam device according to claim 6, wherein a vertically extending sleeve opening is provided on the sleeve;

and a handle is arranged on the sliding pin, penetrates through the sleeve opening and can slide up and down in the sleeve opening.

8. The front impact beam device for automobiles according to claims 1 to 4, wherein a swing arm groove is provided on a front side of said swing arm;

the roller is mounted in the groove of the swing arm through a roller rotating shaft, and the roller rotating shaft extends along the vertical direction;

the diameter of the roller is larger than the groove depth of the groove of the swing arm, and at least part of the roller protrudes out of the front side of the groove of the swing arm.

9. The automobile front impact beam device according to any one of claims 1 to 4, wherein two sets of the impact protection assemblies are arranged on the impact beam in bilateral symmetry.

10. An automobile, characterized by comprising a traveling computer, an automobile battery, an engine room, a front bumper panel and the automobile front impact beam device according to any one of claims 1 to 9;

the front decorative plate is arranged at the front end of the engine room;

the automobile front anti-collision beam device is arranged in the cabin;

a weakened area is arranged on the front decorative plate at a position corresponding to the swing arm;

the driving mechanism is electrically connected with the automobile battery, an automatic control switch is arranged on a lead between the driving mechanism and the automobile battery, and the automatic control switch is in communication connection with the traveling crane computer;

at least a portion of the swing arm protrudes from the weakened area to a front side of the nacelle when the swing arm is in the swing position.

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