CN112109650A - Anti-collision protection device for automobile backing and control method thereof - Google Patents
Anti-collision protection device for automobile backing and control method thereof Download PDFInfo
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- CN112109650A CN112109650A CN202011040138.6A CN202011040138A CN112109650A CN 112109650 A CN112109650 A CN 112109650A CN 202011040138 A CN202011040138 A CN 202011040138A CN 112109650 A CN112109650 A CN 112109650A
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- protection mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/023—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/36—Combinations of yieldable mounting means of different types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/38—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles
- B60R19/40—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles in the direction of an obstacle before a collision, or extending during driving of the vehicle, i.e. to increase the energy absorption capacity of the bumper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R2019/026—Buffers, i.e. bumpers of limited extent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to the technical field of automobile parts, in particular to an anti-collision protection device for automobile backing and a control method thereof.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to an anti-collision protection device for automobile backing and a control method thereof.
Background
The invention of the automobile brings great convenience to people for going out; with the continuous development of the automobile industry, people are not forbidden to require the safety and comfort of driving automobiles, and simultaneously require the multifunctionality of the automobiles; however, when an automobile is backed and stored and/or parked laterally, scraping and collision often occur, and although existing automobiles are equipped with functions of a backing image, a parking radar and the like, people cannot observe emergency situations in all directions simultaneously in the using process, and once the distance is not controlled well, scraping and collision occur, and the image automobile is attractive, and meanwhile property loss is caused.
Disclosure of Invention
The invention aims to provide an anti-collision protection device with a reverse protection function for a vehicle to reverse and a control method, so as to solve the problems in the background technology.
The technical scheme of the invention is as follows: an anti-collision protection device for backing a car comprises an installation mechanism, wherein the installation mechanism is arranged on a car chassis and is used for connecting an anti-collision protection mechanism;
the anti-collision protection mechanism is arranged on the mounting mechanism in a sliding mode, and can exceed the tail of the automobile when the automobile backs, so that the automobile can be protected in an anti-collision mode; when the automobile is in rear-end collision, the anti-collision protection mechanism can increase damping;
the controller, the controller with installation mechanism electric connection, the controller with anticollision protection mechanism electric connection.
The mounting mechanism comprises two connecting frames, and the two connecting frames are symmetrically and fixedly arranged on the automobile chassis; the electromagnetic slide rails are fixedly arranged below the connecting frames, sliding grooves are formed in the electromagnetic slide rails, the sliding grooves are formed in the length direction of the electromagnetic slide rails, a through hole is formed in the bottom surfaces of the sliding grooves, and the through hole is formed in the length direction of the sliding grooves; the limiting mechanism is arranged on the side wall of the electromagnetic slide rail and arranged at one end of the electromagnetic slide rail close to the tail of the automobile, and the limiting mechanism enables the automobile to be matched with the anti-collision protection mechanism when the automobile is in rear-end collision, so that the damping of the anti-collision protection mechanism is increased; and a distance sensor is also arranged on the connecting frame.
The limiting mechanism comprises a mounting cavity formed in the side wall of the electromagnetic slide rail, the mounting cavity is convex, and a protruding part of the mounting cavity faces the through hole and is communicated with the through hole; the electromagnetic sliding block comprises a convex electromagnetic sliding block body, wherein the convex electromagnetic sliding block body is arranged in the installation cavity, the convex electromagnetic sliding block body is elastically connected with the installation cavity through a connecting spring, a guide rod is further arranged between the convex electromagnetic sliding block body and the installation cavity, the connecting spring is sleeved on the guide rod, one end of the connecting spring is fixedly arranged on the convex electromagnetic sliding block body, the other end of the connecting spring is fixedly arranged on the installation cavity, and a protruding part of the convex electromagnetic sliding block body can stretch into the through hole when the electromagnetic sliding block body is used.
The anti-collision protection mechanism comprises a connecting mechanism, and the connecting mechanism is connected with the mounting mechanism; the primary protection mechanism is hydraulic damping protection and is arranged inside the connecting mechanism; the secondary protection mechanism is used for air protection and is connected with the primary protection mechanism in a matching way; the rubber protection pad is arranged at one end, close to the tail part of the automobile, of the secondary protection mechanism.
The connecting mechanism comprises a connecting shell, the connecting shell is rectangular, connecting blocks are further arranged on two side walls of the connecting shell close to one end of the tail of the automobile, electromagnetic sliding blocks are fixedly arranged on two side walls of the connecting shell respectively, the electromagnetic sliding blocks are arranged in sliding grooves in the electromagnetic sliding rails, connectors are further arranged on two side walls of the connecting shell, and the direction of each connector opening is perpendicular to the side walls of the connecting shell.
The first-stage protection mechanism comprises a connecting seat, the connecting seat is cylindrical, the section of the connecting seat is an inscribed circle of the section of the connecting shell, the connecting seat is fixedly arranged inside the connecting shell, a damping protective shell is fixedly arranged inside the connecting seat, the damping protective shell is divided into two sections, the upper end of the damping protective shell has a large diameter and a short length, the lower end of the damping protection shell has small diameter and long length, so that the damping protection shell is in a T-shaped cylindrical shape, the outer diameter of the upper end of the damping protective shell is in clearance fit with the inner diameter of the connecting seat, the damping protective shell is elastically connected with the connecting seat through a damping spring, one end of the damping spring is fixedly arranged on the inner bottom surface of the connecting seat, and the other end of the damping spring is fixedly arranged on the lower end surface of the larger diameter part of the upper end of the damping protective shell; a first piston is arranged at one end in the damping protection shell, a second piston is arranged in the middle of the damping protection shell, the first piston and the second piston are annular, and the first piston and the second piston divide the interior of the damping protection shell into a first oil cavity and a second oil cavity; a first oil inlet and a second oil inlet are formed in the second piston respectively, and hydraulic oil can circulate in the first oil cavity and the second oil cavity through the first oil inlet and the second oil inlet; the connecting cylinder, first piston and second piston are passed to the one end of connecting cylinder, a through-hole has been seted up to the position department that the connecting cylinder is close to the second piston, the terminal surface department elastic connection that the connecting cylinder is close to the second piston has the dog, the shape of dog is the convex, and protruding position is cylindrical, protruding position one end of dog is passed the through-hole and is located the inside of connecting cylinder, the dog protruding position of dog is located the cover is equipped with the extension spring on the part in the connecting cylinder outside, the one end of extension spring is fixed to be set up on the outer wall of connecting cylinder, the other end of extension spring is fixed to be set up on the non-protruding position of dog, the dog with the terminal surface of second piston is laminated mutually, just the dog with the second inlet port is relative.
The secondary anti-collision protection mechanism comprises a first connecting box, the first connecting box is arranged at one end inside the connecting shell in a sliding mode, push rods are fixedly arranged on two outer side walls of the first connecting box respectively, and one end of each push rod extends out of a connecting port in the connecting shell and is arranged on the through port in a sliding mode; a driving rod is fixedly arranged on the outer bottom wall of the first connecting box, the free end of the driving rod is positioned inside the connecting cylinder, and the free end of the driving rod is wedge-shaped; the second connecting box is convex, the convex part extends into the first connecting box, one end of the side wall of the second connecting box, which extends into the first connecting box, is provided with an outward flange, and the upper end of the side wall of the first connecting box is provided with an inward flange, so that the second connecting box and the first connecting box form a closed cavity and can slide relatively; connecting holes are also formed in the two side walls of the first connecting box; one end of the corrugated pipe is fixedly connected with the connecting hole, and the other end of the corrugated pipe is fixedly connected with an automobile air pump; the rubber protection pad is fixedly arranged on the outer end face of the second connecting box.
And the joint of the corrugated pipe and the connecting hole is also provided with an electromagnetic valve and an air pressure detection sensor.
A fastening mechanism is further arranged between the second connecting box and the connecting shell; the fastening mechanism comprises an inserting rod arranged on the second connecting box, and one end of the inserting rod is magnetically connected with the push rod through a through hole in a connecting block on the connecting shell; the connecting base stations are respectively fixedly arranged on the upper end surface and the lower end surface of the second connecting box and the connecting shell, the two connecting base stations on the same end surface are fixedly connected through a U-shaped connecting pipe, and the U-shaped connecting pipe is made of brittle plastics; the second connecting box is located be provided with the pressure spring on the outside terminal surface of first connecting box, the one end of pressure spring with the terminal surface fixed connection of second connecting box, the other end of pressure spring with the terminal surface fixed connection of the connecting block on the connection shell, just the pressure spring is in the inserted bar with be in compression state under the effect of U type connecting pipe.
In addition, the invention also provides a control method of the anti-collision protection device for reversing the automobile, which comprises the following steps:
s1, when an automobile normally runs, a distance sensor is in a normally open state, and when a rear automobile is sensed to have a rear-end collision trend, a controller sends an instruction to start a limiting mechanism;
s2, sending an instruction through a controller, controlling the anti-collision protection mechanism to move along the electromagnetic slide rail and extend out of the outer side of the tail of the automobile, so that the limiting mechanism can limit a secondary protection mechanism in the anti-collision protection mechanism, and the damping of the primary protection mechanism is increased;
s3, when the air pressure detection sensor detects that the air pressure of the air storage cavity is reduced, the controller sends an instruction to open the electromagnetic valve, so that air generated in the automobile air pump is filled into the air storage cavity through the corrugated pipe, and the secondary protection mechanism works;
s4, when the automobile backs, the controller sends out an instruction to close the distance sensor, and meanwhile, the anti-collision protection mechanism is controlled to move along the electromagnetic slide rail and extend out of the outer side of the tail of the automobile, at the moment, the rubber protection pad and the primary protection mechanism play a main buffering role, and the primary protection mechanism is in a small-damping protection state.
Advantageous effects
The invention provides an automobile tire pit escaping device convenient to mount and a using method thereof through improvement, compared with the prior art, the automobile tire pit escaping device has the following improvement and advantages:
by arranging the connecting mechanism, the primary protection mechanism, the secondary protection mechanism, the rubber protection pad, the connecting shell, the electromagnetic slider, the connecting port, the connecting seat, the damping protection shell, the damping spring, the first piston, the second piston, the first oil cavity, the second oil cavity, the first oil inlet hole, the second oil inlet hole, the connecting cylinder, the stop block, the tension spring, the first connecting box, the push rod, the driving rod, the second connecting box, the connecting hole, the corrugated pipe, the fastening mechanism, the inserted rod, the connecting base platform, the U-shaped connecting pipe and the pressure spring, so that when the automobile is in a reversing state, the rubber protective pad and the primary protective mechanism in a small damping protective state can effectively play the role of anti-collision protection, when the automobile is in a rear-end collision state, the damping can be increased by the first-stage protection mechanism, and the second-stage protection mechanism can be started, so that the automobile has multi-stage protection, and the automobile is prevented from being damaged due to collision.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic isometric view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a schematic cross-sectional view of the isometric step at A-A of FIG. 2;
FIG. 5 is a schematic cross-sectional view of the isometric step shown in FIG. 3 at B-B;
FIG. 6 is an isometric view of a crash protection mechanism according to the present invention;
FIG. 7 is an enlarged view at C of FIG. 4;
fig. 8 is an enlarged view of fig. 5 at D.
In the drawing, the mounting mechanism 1, the anti-collision protection mechanism 2, the connecting frame 11, the electromagnetic slide rail 12, the sliding groove 121, the through opening 122, the mounting cavity 123, the convex electromagnetic slider 124, the distance sensor 111, the connecting spring 125, the guide rod 126, the connecting mechanism 21, the primary protection mechanism 23, the secondary protection mechanism 24, the rubber protection pad 22, the connecting housing 211, the electromagnetic slider 213, the connecting port 214, the connecting seat 231, the damping protection housing 232, the damping spring 236, the first piston 233, the second piston 234, the first oil chamber 2321, the second oil chamber 2322, the first oil inlet 2341, the second oil inlet 2342, the connecting cylinder 235, the stopper 2351, the tension spring 2352, the first connecting box 241, the push rod 2411, the driving rod 2412, the second connecting box 242, the connecting hole 3, the bellows 26, the fastening mechanism 25, the inserting rod 244, the connecting base 251, the U-shaped connecting pipe 252, and the compression spring 2412 are.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 8, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, the anti-collision protection device for automobile backing comprises an installation mechanism 1, wherein the installation mechanism 1 is arranged on an automobile chassis and is used for connecting an anti-collision protection mechanism 2;
the anti-collision protection mechanism 2 is arranged on the mounting mechanism 1 in a sliding mode, and when the automobile backs, the anti-collision protection mechanism 2 can exceed the tail of the automobile to perform anti-collision protection on the automobile; when the automobile is in rear-end collision, the anti-collision protection mechanism 2 can increase damping;
the controller, the controller with installation mechanism 1 electric connection, the controller with collision avoidance mechanism 2 electric connection.
Further, the mounting mechanism 1 comprises two connecting frames 11, and the two connecting frames 11 are symmetrically and fixedly arranged on the automobile chassis; the electromagnetic slide rail 12 is fixedly arranged below each connecting frame 11, a slide groove 121 is formed in the electromagnetic slide rail 12, the slide groove 121 is formed along the length direction of the electromagnetic slide rail 12, a through hole 122 is formed in the bottom surface of the slide groove 121, and the through hole 122 is formed along the length direction of the slide groove 121; the limiting mechanism is arranged on the side wall of the electromagnetic slide rail 12, the limiting mechanism is arranged at one end, close to the tail of the automobile, of the electromagnetic slide rail 12, the limiting mechanism enables the automobile to be matched with the anti-collision protection mechanism 2 when the automobile is in a rear-end collision, the damping of the anti-collision protection mechanism 2 is increased, and the distance sensor 111 is further arranged on the connecting frame 11;
when the car is backing a car, through the controller, make collision avoidance mechanism 2 stretch out the car afterbody along electromagnetism slide rail 12, thereby make when the car backs a car and puts in storage, collision avoidance mechanism 2 can prevent that the car afterbody from touching wall body and/or crash bar etc. avoids the car afterbody to cause the damage because of the collision, perhaps falls the lacquer and influences the pleasing to the eye of car, and when stopping in side, can avoid the car afterbody to collide the rear car, and cause the damage of self vehicle and rear car, reduce loss of property.
Further, in another embodiment of the present invention, when the distance sensor 111 senses that the rear vehicle has a rear-end collision tendency, the controller sends an instruction to control the anti-collision protection mechanism 2 to move along the electromagnetic sliding rail 12, so that the anti-collision protection mechanism 2 extends out of the rear portion of the vehicle, and the limiting mechanism is started, and under the cooperation of the limiting mechanism and the anti-collision protection mechanism 2, the damping of the anti-collision protection mechanism 2 is increased, so that a larger buffer can be obtained when the rear vehicle collides with the rear vehicle, thereby preventing the rear portion of the vehicle from being damaged by the rear vehicle colliding with the rear vehicle, and reducing the damage to the head of the rear vehicle and the property loss caused by the rear vehicle colliding with the rear vehicle.
Further, as shown in fig. 1, the limiting mechanism includes a mounting cavity 123 formed in a side wall of the electromagnetic sliding rail 12, the mounting cavity 123 is convex, and a protruding portion of the mounting cavity 123 faces the through opening 122 and is communicated with the through opening 122; the electromagnetic slider 124 is a convex electromagnetic slider 124, the convex electromagnetic slider 124 is arranged in the installation cavity 123, the convex electromagnetic slider 124 is elastically connected with the installation cavity 123 through a connecting spring 125, a guide rod 126 is further arranged between the convex electromagnetic slider 124 and the installation cavity 123, the connecting spring 125 is sleeved on the guide rod 126, one end of the connecting spring 125 is fixedly arranged on the convex electromagnetic slider 124, the other end of the connecting spring 125 is fixedly arranged on the installation cavity 123, and the convex part of the convex electromagnetic slider 124 can extend into the through hole 122 when in use. When sensing the trend that the back car has the rear-end collision apart from inductor 111, through the controller, make protruding type electromagnetism slider 124 downstream, and then protruding type electromagnetism slider 124's bulge is located opening 122, at this moment, when crashproof protection mechanism 2 stretches out car afterbody rear end, protruding type electromagnetism slider 124 plays limiting displacement to second grade protection mechanism 24 in crashproof protection mechanism 2, thereby can increase crashproof protection mechanism 2's damping, when the car is by the rear-end collision, can provide great damped shock attenuation.
Further, as shown in fig. 4 to 6, the collision protection mechanism 2 includes a connecting mechanism 21, and the connecting mechanism 21 is connected to the mounting mechanism 1; the primary protection mechanism 23, the primary protection mechanism 23 is a hydraulic damping protection, and the primary protection mechanism 23 is arranged inside the connecting mechanism 21; the secondary protection mechanism 24 is used for air protection, and the secondary protection mechanism 24 is connected with the primary protection mechanism 23 in a matching manner; and the rubber protection pad 22 is arranged at one end of the secondary protection mechanism 24 close to the tail of the automobile.
Further, coupling mechanism 21 is including connecting shell 211, the shape of connecting shell 211 is the rectangle, still be provided with the connecting block on the both sides wall that connects shell 211 and be close to car afterbody one end, it is provided with electromagnetism slider 213 to connect respectively fixedly on the both sides wall of shell 211, electromagnetism slider 213 sets up in the spout 121 on the electromagnetism slide rail 12, connector 214 has still been seted up on the both sides wall of connecting shell 211, connector 214 open-ended direction perpendicular to connect the lateral wall of shell 211. The controller sends out a driving instruction, so that the electromagnetic slider 213 moves in the sliding groove 121 of the electromagnetic sliding rail 12, and the anti-collision protection mechanism 2 can extend out of the tail of the automobile during operation, thereby performing anti-collision protection on the automobile.
The first-stage protection mechanism 23 comprises a connection seat 231, the connection seat 231 is cylindrical, the cross section of the connection seat 231 is an inscribed circle of the cross section of the connection shell 211, the connection seat 231 is fixedly arranged inside the connection shell 211, a damping protection shell 232 is fixedly arranged inside the connection seat 231, the damping protection shell 232 is divided into two sections, the diameter of the upper end of the damping protection shell 232 is large and short in length, the diameter of the lower end of the damping protection shell 232 is small and long in length, so that the damping protection shell 232 is in a T-shaped cylindrical shape, the outer diameter of the upper end of the damping protection shell 232 is in clearance fit with the inner diameter of the connection seat 231, the damping protection shell 232 is elastically connected with the connection seat 231 through a damping spring 236, one end of the damping spring 236 is fixedly arranged on the inner bottom surface of the connection seat 231, and the other end of the damping spring 236 is fixedly arranged at the position where the diameter of the upper end of The lower end surface is arranged on the lower end surface; a first piston 233 is arranged at one end inside the damping protection shell 232, a second piston 234 is arranged at the middle position inside the damping protection shell 232, the first piston 233 and the second piston 234 are annular, and the first piston 233 and the second piston 234 divide the inside of the damping protection shell 232 into a first oil chamber 2321 and a second oil chamber 2322; a first oil inlet hole 2341 and a second oil inlet hole 2342 are respectively formed in the second piston 234, and hydraulic oil can flow through the first oil chamber 2321 and the second oil chamber 2322 through the first oil inlet hole 2341 and the second oil inlet hole 2342; the connecting cylinder 235, first piston 233 and second piston 234 are passed to the one end of connecting cylinder 235, a through-hole has been seted up in the position department that the connecting cylinder 235 is close to second piston 234, the end face elastic connection that the connecting cylinder 235 is close to second piston 234 has dog 2351, dog 2351's shape is convex, and protruding position is cylindrical, dog 2351's protruding position one end is passed the through-hole and is located the inside of connecting cylinder 235, dog 2351 protruding position is located the cover is equipped with extension spring 2352 on the part in the connecting cylinder 235 outside, extension spring 2352's one end is fixed to be set up on the outer wall of connecting cylinder 235, extension spring 2352's other end is fixed to be set up on dog 2351's non-protruding position, dog 2351 with the terminal surface of second piston 234 is laminated mutually, just dog 2351 with second inlet port 2342 is relative.
The secondary anti-collision protection mechanism 24 comprises a first connection box 241, the first connection box 241 is slidably disposed at one end inside the connection housing 211, push rods 2411 are fixedly disposed on two outer side walls of the first connection box 241, and one end of each push rod 2411 extends out of the connection port 214 on the connection housing 211 and is slidably disposed on the through port 122; a driving rod 2412 is fixedly arranged on the outer bottom wall of the first connecting box 241, the free end of the driving rod 2412 is positioned inside the connecting cylinder 235, and the free end of the driving rod 2412 is wedge-shaped; the shape of the second connection box 242 is convex, a convex part of the second connection box 242 extends into the first connection box 241, an outward flange is arranged at one end of the side wall of the second connection box 242 extending into the first connection box 241, and an inward flange is arranged at the upper end of the side wall of the first connection box 241, so that a closed cavity is formed by the second connection box 242 and the first connection box 241, and the second connection box 242 and the first connection box 241 can slide relatively; two side walls of the first connecting box 241 are also provided with connecting holes 2413; one end of the corrugated pipe 26 is fixedly connected with the connecting hole 2413, and the other end of the corrugated pipe 26 is fixedly connected with an automobile air pump; the rubber protection pad 22 is fixedly disposed on an outer end surface of the second connection box 242. The turn-ups on the first connecting box 241 can play the restriction effect to the motion of second connecting box 242, thereby make second connecting box 242 and first connecting box 241 cause the problem that drops, in order to solve the installation problem of first connecting box 241 and second connecting box 242, consequently first connecting box 241 adopts the welding to assemble and forms, and when the installation, embolia first connecting box 241 along turn-ups tensile direction with second connecting box 242 in earlier, then weld the curb plate of first connecting box 241, thereby make first connecting box 241 and second connecting box 242 form a confined and relative slip's cavity.
The bellows 26 is retractable, so that the bellows 26 does not fall off from the air pump of the vehicle when the entire anti-collision protection mechanism 2 extends out of the outer side of the rear portion of the vehicle.
The joint of the bellows 26 and the connection hole 2413 is further provided with an electromagnetic valve and an air pressure detection sensor.
A fastening mechanism 25 is further arranged between the second connection box 242 and the connection housing 211; the fastening mechanism 25 includes an insertion rod 244 disposed on the second connection box 242, and one end of the insertion rod 244 is magnetically connected to the push rod 2411 through a through hole on a connection block on the connection housing 211; the connecting bases 251 are respectively and fixedly arranged on the upper end surface and the lower end surface of the second connecting box 242 and the connecting shell 211, the two connecting bases 251 on the same end surface are fixedly connected through a U-shaped connecting pipe 252, and the U-shaped connecting pipe 252 is made of brittle plastics; a pressure spring 243 is arranged on the end face of the second connection box 242, which is located outside the first connection box 241, one end of the pressure spring 243 is fixedly connected with the end face of the second connection box 242, the other end of the pressure spring 243 is fixedly connected with the end face of the connection block on the connection housing 211, and the pressure spring 243 is in a compressed state under the action of the insertion rod 244 and the U-shaped connection pipe 252.
In an embodiment of the present invention, when the vehicle is in a reverse state, the controller sends out a command to close the distance sensor 111, and at the same time, controls the anti-collision protection mechanism 2 to move along the electromagnetic slide rail 12 and extend out of the outer side of the tail of the vehicle, at this time, the rubber protection pad 22 and the primary protection mechanism 23 play a main role in buffering, and the primary protection mechanism 23 is in a low-damping protection state, because the vehicle speed is slow during the reverse process, and therefore even if collision occurs, the vehicle is light, so that the anti-collision protection can be effectively achieved through the rubber protection pad 22 and the primary protection mechanism 23 in the low-damping protection state.
In another embodiment of the present invention, during normal driving of the vehicle, when the distance sensor 111 senses that the rear vehicle has a rear-end collision tendency, the controller causes the convex electromagnetic slider 124 to move downward, so that the convex portion of the convex electromagnetic slider 124 is located in the through opening 122, and the electromagnetic slider 213 moves in the sliding slot 121 of the electromagnetic sliding rail 12, the push rod 2411 is limited by the convex portion of the convex electromagnetic slider 124, at this time, the first connection box 241 moves in a direction away from the second connection box 242 with respect to the second connection box 242, so that the driving rod 2412 moves in the direction close to the second piston 234 in the connection cylinder 235, the wedge-shaped free end of the driving rod 2412 pushes up the free end of the convex portion of the stopper 2351, so that the tension spring 2352 stretches, at this time, the non-convex portion of the stopper 2351 can block the opening of the second oil inlet 2342, and at this time, the opening of the second oil inlet 2352 is at a minimum state, when the hydraulic oil passes through the second piston 234 and flows between the first oil storage chamber 2321 and the second oil storage chamber 2322, the resistance is large, so that the primary protection mechanism 23 is in a large damping shock absorption state at the moment, so that the anti-collision protection mechanism 2 is in a large damping shock absorption state, and the damage to the tail of the automobile caused by a large rear-end collision impact force can be effectively prevented;
meanwhile, when the first connection box 241 is far away from the second connection box 242, the volume of the air storage cavity formed between the first connection box 241 and the second connection box 242 is increased, the air pressure in the air storage cavity is reduced, and when the air pressure detection sensor detects that the air pressure in the air storage cavity is reduced, the controller sends an instruction to open the electromagnetic valve, so that the air generated in the automobile air pump is filled into the air storage cavity through the corrugated pipe 26; and when the push rod 2411 on the first connection box 241 is limited by the convex part of the convex electromagnetic slider 124, the insertion rod 244 and the push rod 2411 are separated from each other under the thrust action of the electromagnetic slider 213, at this time, the magnetism between the insertion rod 244 and the push rod 2411 is weakened due to a long distance, meanwhile, after the gas is continuously filled in the gas storage cavity, the internal gas pressure is increased, because the other end of the push rod 2411 is limited by the side wall of the connection port 214, so that the first connection box 241 is limited, at this time, under the action of the gas pressure, the second connection box 242 has a movement trend in the direction away from the first connection box 241, and the pressure spring 243 has a resetting trend, under the action of the two trends, the U-shaped connection pipe 252 is broken, so that the pressure spring 243 is reset, at this time, the gas pressure in the gas storage cavity reaches a certain value, the electromagnetic valve is closed, at this time, the gas is not filled in the gas storage cavity any more, when the rear-end collision occurs, the gas in the gas storage cavity is compressed, so that the energy generated by the collision is absorbed, a large damping effect is achieved, and the pressure spring 243 is in a reset state, so that the pressure spring 243 can be compressed when colliding, the energy generated by the collision is absorbed, and a certain damping effect is achieved. And after the collision, when needing to maintain, only need to change U type connecting pipe 252 and can realize the maintenance, other parts of this device can not receive the damage when normal use, reduce manufacturing cost, are favorable to promoting.
The controller, the electromagnetic valve, the air pressure detection sensor, the electromagnetic slide rail, the electromagnetic slider, the circuit connection and other parts in the invention are the prior art and are not described in detail.
Claims (10)
1. The utility model provides an automobile is backed a car and is used collision avoidance device which characterized in that: the anti-collision protection device comprises an installation mechanism (1), wherein the installation mechanism (1) is arranged on an automobile chassis and is used for connecting an anti-collision protection mechanism (2);
the anti-collision protection mechanism (2) is arranged on the mounting mechanism (1) in a sliding mode, and when the automobile backs, the anti-collision protection mechanism (2) can exceed the tail of the automobile to perform anti-collision protection on the automobile; when the automobile is in rear-end collision, the anti-collision protection mechanism (2) can increase damping;
the controller, the controller with installation mechanism (1) electric connection, the controller with anticollision protection mechanism (2) electric connection.
2. The anti-collision protection device for the reversing of the automobile according to claim 1, characterized in that: the mounting mechanism (1) comprises two connecting frames (11), and the two connecting frames (11) are symmetrically and fixedly arranged on an automobile chassis; the electromagnetic slide rail (12) is fixedly arranged below each connecting frame (11), a slide groove (121) is formed in each electromagnetic slide rail (12), each slide groove (121) is formed in the length direction of each electromagnetic slide rail (12), a through hole (122) is formed in the bottom surface of each slide groove (121), and each through hole (122) is formed in the length direction of each slide groove (121); the limiting mechanism is arranged on the side wall of the electromagnetic sliding rail (12), the limiting mechanism is arranged at one end, close to the tail of the automobile, of the electromagnetic sliding rail (12), and the limiting mechanism enables the automobile to be matched with the anti-collision protection mechanism (2) when the automobile is in a rear-end collision, so that the damping of the anti-collision protection mechanism (2) is increased; and a distance sensor (111) is further arranged on the connecting frame (11).
3. The anti-collision protection device for the reversing of the automobile according to claim 2, characterized in that: the limiting mechanism comprises a mounting cavity (123) formed in the side wall of the electromagnetic slide rail (12), the mounting cavity (123) is convex, and a protruding part of the mounting cavity (123) faces the through opening (122) and is communicated with the through opening (122); the electromagnetic sliding block structure comprises a convex electromagnetic sliding block (124), wherein the convex electromagnetic sliding block (124) is arranged in an installation cavity (123), the convex electromagnetic sliding block (124) is elastically connected with the installation cavity (123) through a connecting spring (125), a guide rod (126) is further arranged between the convex electromagnetic sliding block (124) and the installation cavity (123), the connecting spring (125) is sleeved on the guide rod (126), one end of the connecting spring (125) is fixedly arranged on the convex electromagnetic sliding block (124), the other end of the connecting spring (125) is fixedly arranged on the installation cavity (123), and a protruding part of the convex electromagnetic sliding block (124) can extend into a through hole (122) when in use.
4. The anti-collision protection device for the reversing of the automobile according to claim 2, characterized in that: the anti-collision protection mechanism (2) comprises a connecting mechanism (21), and the connecting mechanism (21) is connected with the mounting mechanism (1); the primary protection mechanism (23), the primary protection mechanism (23) is hydraulic damping protection, and the primary protection mechanism (23) is arranged inside the connecting mechanism (21); the secondary protection mechanism (24) is used for air protection, and the secondary protection mechanism (24) is connected with the primary protection mechanism (23) in a matched mode; the rubber protection pad (22), the rubber protection pad (22) sets up the one end that second grade protection machanism (24) are close to the car afterbody.
5. The anti-collision protection device for the reversing of the automobile according to claim 4, characterized in that: coupling mechanism (21) are including connecting shell (211), the shape of connecting shell (211) is the rectangle, it still is provided with the connecting block on the both sides wall that is close to car afterbody one end to connect shell (211), it is provided with electromagnetism slider (213) to connect respectively fixedly on the both sides wall of shell (211), electromagnetism slider (213) set up in spout (121) on electromagnetism slide rail (12), connector (214) have still been seted up on the both sides wall of connecting shell (211), connector (214) open-ended direction perpendicular to connect the lateral wall of shell (211).
6. The anti-collision protection device for the reversing of the automobile according to claim 5, characterized in that: the one-level protection mechanism (23) comprises a connecting seat (231), the connecting seat (231) is cylindrical, the cross section of the connecting seat (231) is an inscribed circle of the cross section of the connecting shell (211), the connecting seat (231) is fixedly arranged in the connecting shell (211), a damping protective shell (232) is fixedly arranged in the connecting seat (231), the damping protective shell (232) is divided into two sections, the diameter of the upper end of the damping protective shell (232) is large and short, the diameter of the lower end of the damping protective shell (232) is small and long, so that the damping protective shell (232) is in a T-shaped cylindrical shape, the outer diameter of the upper end of the damping protective shell (232) is in clearance fit with the inner diameter of the connecting seat (231), and the damping protective shell (232) is elastically connected with the connecting seat (231) through a damping spring (236), one end of the damping spring (236) is fixedly arranged on the inner bottom surface of the connecting seat (231), and the other end of the damping spring (236) is fixedly arranged on the lower end surface of the larger diameter part of the upper end of the damping protective shell (232); a first piston (233) is arranged at one end inside the damping protection shell (232), a second piston (234) is arranged in the middle position inside the damping protection shell (232), the first piston (233) and the second piston (234) are annular, and the first piston (233) and the second piston (234) divide the inside of the damping protection shell (232) into a first oil cavity (2321) and a second oil cavity (2322); a first oil inlet hole (2341) and a second oil inlet hole (2342) are formed in the second piston (234) respectively, and hydraulic oil can flow in the first oil cavity (2321) and the second oil cavity (2322) through the first oil inlet hole (2341) and the second oil inlet hole (2342); a connecting cylinder (235), one end of the connecting cylinder (235) passes through a first piston (233) and a second piston (234), a through hole is formed at a position of the connecting cylinder (235) close to the second piston (234), a stop block (2351) is elastically connected at a position of the connecting cylinder (235) close to the end face of the second piston (234), the stop block (2351) is convex, the convex part is cylindrical, one end of the convex part of the stop block (2351) passes through the through hole and is located in the connecting cylinder (235), the stop block (2351) is sleeved with a tension spring (2352) at the convex part of the stop block (2351) outside the connecting cylinder (235), one end of the tension spring (2352) is fixedly arranged on the outer wall of the connecting cylinder (235), the other end of the tension spring (2352) is fixedly arranged on the non-convex part of the stop block (2351), the stop block (2351) is attached to the end face of the second piston (234), and the block (2351) is opposite to the second oil inlet hole (2342).
7. The anti-collision protection device for the reversing of the automobile according to claim 6, characterized in that: the secondary anti-collision protection mechanism (24) comprises a first connecting box (241), the first connecting box (241) is arranged at one end inside the connecting shell (211) in a sliding mode, push rods (2411) are fixedly arranged on two outer side walls of the first connecting box (241) respectively, and one end of each push rod (2411) extends out of a connecting port (214) in the connecting shell (211) and is arranged on the through port (122) in a sliding mode; a driving rod (2412) is fixedly arranged on the outer bottom wall of the first connecting box (241), the free end of the driving rod (2412) is positioned inside the connecting cylinder (235), and the free end of the driving rod (2412) is wedge-shaped; the shape of the second connecting box (242) is convex, the convex part of the second connecting box (242) extends into the first connecting box (241), one end, extending into the first connecting box (241), of the side wall of the second connecting box (242) is provided with an outward flange, the upper end of the side wall of the first connecting box (241) is provided with an inward flange, so that the second connecting box (242) and the first connecting box (241) form a closed cavity, and the second connecting box (242) and the first connecting box (241) can slide relatively; two side walls of the first connecting box (241) are also provided with connecting holes (2413); one end of the corrugated pipe (26) is fixedly connected with the connecting hole (2413), and the other end of the corrugated pipe (26) is fixedly connected with an automobile air pump; the rubber protection pad (22) is fixedly arranged on the outer end face of the second connecting box (242).
8. The anti-collision protection device for the reversing of the automobile according to claim 7, characterized in that: and the joint of the corrugated pipe (26) and the connecting hole (2413) is also provided with an electromagnetic valve and an air pressure detection sensor.
9. The anti-collision protection device for the reversing of the automobile according to claim 7, characterized in that: a fastening mechanism (25) is further arranged between the second connecting box (242) and the connecting shell (211); the fastening mechanism (25) comprises an inserting rod (244) arranged on the second connecting box (242), and one end of the inserting rod (244) is magnetically connected with the push rod (2411) through a through hole in a connecting block on the connecting shell (211); the connecting base platforms (251) are respectively and fixedly arranged on the upper end surface and the lower end surface of the second connecting box (242) and the connecting shell (211), the two connecting base platforms (251) on the same end surface are fixedly connected through a U-shaped connecting pipe (252), and the U-shaped connecting pipe (252) is made of brittle plastics; the second connecting box (242) is located and is provided with a pressure spring (243) on the end face of the outside of the first connecting box (241), one end of the pressure spring (243) is fixedly connected with the end face of the second connecting box (242), the other end of the pressure spring (243) is fixedly connected with the end face of a connecting block on the connecting shell (211), and the pressure spring (243) is in a compression state under the action of the inserting rod (244) and the U-shaped connecting pipe (252).
10. A control method of a crash protection device for vehicle reversing according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
s1, when an automobile runs normally, a distance sensor (111) is in a normally open state, and when a rear automobile is sensed to have a rear-end collision trend, a controller sends an instruction to start a limiting mechanism;
s2, sending an instruction through a controller, controlling the anti-collision protection mechanism (2) to move along the electromagnetic slide rail (12) and extend out of the outer side of the tail of the automobile, and enabling the limiting mechanism to limit a secondary protection mechanism (24) in the anti-collision protection mechanism (2), so that the damping of a primary protection mechanism (23) is increased;
s3, when the air pressure detection sensor detects that the air pressure of the air storage cavity is reduced, the controller sends an instruction to open the electromagnetic valve, so that air generated in the automobile air pump is filled into the air storage cavity through the corrugated pipe (26), and the secondary protection mechanism (24) works;
s4, when the automobile backs, the controller sends out an instruction to close the distance sensor (111), and meanwhile, the anti-collision protection mechanism (2) is controlled to move along the electromagnetic slide rail (12) and extend out of the outer side of the tail of the automobile, at the moment, the rubber protection pad (22) and the primary protection mechanism (23) play a main buffering role, and the primary protection mechanism (23) is in a small-damping protection state.
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| CN202011040138.6A CN112109650B (en) | 2020-09-28 | 2020-09-28 | Anti-collision protection device for automobile backing and control method thereof |
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| CN202011040138.6A CN112109650B (en) | 2020-09-28 | 2020-09-28 | Anti-collision protection device for automobile backing and control method thereof |
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| CN112109650B CN112109650B (en) | 2021-11-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117404299A (en) * | 2023-12-15 | 2024-01-16 | 田边(福建)智能装备有限公司 | Vacuum pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117404299A (en) * | 2023-12-15 | 2024-01-16 | 田边(福建)智能装备有限公司 | Vacuum pump |
| CN117404299B (en) * | 2023-12-15 | 2024-03-19 | 田边(福建)智能装备有限公司 | Vacuum pump |
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Effective date of registration: 20211021 Address after: 400050 fifth floor, production building, No. 2, Hualong Avenue, Jiulongpo District, Chongqing Applicant after: Chongqing Xianfeng Intelligent Technology Co.,Ltd. Address before: 311404 Ren Ruan, Xiande village, Dongqiao Town, Hangzhou City, Zhejiang Province Applicant before: Hangzhou Huoxi Auto Parts Co.,Ltd. |
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