CN215398562U - Vehicle active rear-end collision prevention safety protection system - Google Patents
Vehicle active rear-end collision prevention safety protection system Download PDFInfo
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- CN215398562U CN215398562U CN202121858061.3U CN202121858061U CN215398562U CN 215398562 U CN215398562 U CN 215398562U CN 202121858061 U CN202121858061 U CN 202121858061U CN 215398562 U CN215398562 U CN 215398562U
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Abstract
The utility model relates to a vehicle active rear-end collision prevention safety protection system, and belongs to the technical field of vehicle safety. The technical scheme is as follows: an energy absorption device (2) is arranged between the protective cross beam (1) and the auxiliary protective cross beam (5), a rear lower protective frame is integrally formed and arranged below the rear part of the vehicle main longitudinal beam (10), the end part of the guide rod (7) is fixed on the auxiliary protective cross beam (5), a guide sleeve (6) is arranged on the guide rod (7), a cylinder fixing seat (11) and a connecting plate which are arranged front and back are arranged on the lower end face of the vehicle main longitudinal beam (10), the upper end face of the guide sleeve is connected with the lower end of the connecting plate (9), the head part of the buffer cylinder (8) is connected with the auxiliary protective cross beam (5), and the tail part of the buffer cylinder is connected with the cylinder fixing seat (11); the main air cylinder of the main vehicle controls the cylinder rod of the buffer cylinder to stretch and retract in a reversing way through a two-position five-way electromagnetic valve. The utility model realizes the special construction of roads or the detection of vehicles, and effectively reduces the personal injury and property loss caused by rear-end collision of vehicles.
Description
Technical Field
The utility model relates to a vehicle active rear-end collision prevention safety protection system, and belongs to the technical field of vehicle safety.
Background
At present, when a special construction or detection vehicle for a road works, due to the fact that the vehicle is static or the working speed is low, a rear vehicle often has no time to brake and avoid when the rear vehicle finds that the working vehicle does not normally run, rear-end accidents occur, and serious personal injuries and property losses are caused.
According to the current national standard of the protection requirements of the side surfaces and the rear lower parts of automobiles and trailers, the rear lower part protection of the traditional special vehicle mostly adopts a rectangular pipe or a circular pipe with high strength and rigidity to be rigidly connected with a main beam of the vehicle, so that the special vehicle can only ensure that the special vehicle cannot be penetrated under a front vehicle when a small vehicle knocks into the rear, does not have any energy absorption or buffer device, and has great damage to the rear-end vehicle, especially the small vehicle.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a vehicle active rear-end collision prevention safety protection system, which reduces personal injury of drivers and passengers of rear-end vehicles when special construction for roads or detection of rear-end collision of vehicles is realized, reduces damage of the vehicles of both sides, and solves the problems in the background technology.
The technical scheme of the utility model is as follows:
a vehicle active rear-end collision prevention safety protection system comprises a main protection cross beam, an energy absorption device, an auxiliary protection cross beam, a guide sleeve, a guide rod, a buffer cylinder, a connecting plate, a cylinder fixing seat, a main vehicle air cylinder, an oil-water separator, a pressure regulating valve, an atomizer and a two-position five-way electromagnetic valve, wherein the energy absorption device is arranged between the protection cross beam and the auxiliary protection cross beam, the energy absorption device integrally forms a rear lower protection frame which is arranged below the rear part of a vehicle main longitudinal beam; the main air cylinder arranged on the vehicle is sequentially connected with an oil-water separator, a pressure regulating valve, an atomizer and a two-position five-way electromagnetic valve through an air outlet pipe, and the two-position five-way electromagnetic valve controls the cylinder rod of the buffer cylinder to stretch in a reversing way.
And an adjustable silencer is arranged on the buffer cylinder.
The main protection crossbeam and the auxiliary protection crossbeam are arranged in parallel, the energy absorption device is composed of a plurality of collapse structures, the plurality of collapse structures are arranged between the main protection crossbeam and the auxiliary protection crossbeam, two opposite ends of the main protection crossbeam and the auxiliary protection crossbeam are respectively provided with a buffer spring fixing seat, and the buffer springs are arranged on the buffer spring fixing seats.
The guide rod and the buffer cylinder are perpendicular to the auxiliary protection cross beam, and the guide rod and the buffer cylinder are parallel to the main longitudinal beam of the vehicle.
The length of the guide rod is larger than the maximum telescopic distance of the cylinder rod of the buffer cylinder.
The guide rods are two and are respectively arranged below the corresponding main longitudinal beams of the vehicle, and each guide rod is provided with a guide sleeve in a matching mode.
The two buffer cylinders are respectively arranged below the corresponding main longitudinal beams of the vehicle.
The utility model has the following positive effects: the construction method realizes the special construction of roads or the detection of vehicles, and effectively reduces the personal injury and property loss caused by rear-end collision of vehicles.
Drawings
FIG. 1 is a partial schematic view of the mechanical structure of the present invention;
FIG. 2 is a schematic view of the gas circuit control portion of the present invention;
FIG. 3 is a side view of the vehicle of the present invention in a normal driving condition;
FIG. 4 is a top plan view of the vehicle of the present invention during normal operation;
FIG. 5 is a side view of the vehicle of the present invention in operation;
FIG. 6 is a top plan view of the vehicle of the present invention in operation;
in the figure: the energy-absorbing device comprises a main protection cross beam 1, an energy-absorbing device 2, a buffer spring 3, a buffer spring fixing seat 4, an auxiliary protection cross beam 5, a guide sleeve 6, a guide rod 7, a buffer cylinder 8, a connecting plate 9, a vehicle main longitudinal beam 10, a cylinder fixing seat 11, a main vehicle air cylinder 12, an oil-water separator 13, a pressure regulating valve 14, an atomizer 15, a two-position five-way electromagnetic valve 16 and an adjustable silencer 17.
Detailed Description
The utility model is further described with reference to the following figures and examples:
a vehicle active rear-end collision prevention safety protection system comprises a main protection cross beam 1, an energy absorption device 2, an auxiliary protection cross beam 5, a guide sleeve 6, a guide rod 7, a buffer cylinder 8, a connecting plate 9, a cylinder fixing seat 11, a main vehicle air cylinder 12, an oil-water separator 13, a pressure regulating valve 14, an atomizer 15 and a two-position five-way solenoid valve 16, wherein the energy absorption device 2 is arranged between the protection cross beam 1 and the auxiliary protection cross beam 5 to integrally form a rear lower protection frame which is arranged below the rear part of a vehicle main longitudinal beam 10, the end part of the guide rod 7 is fixed on the auxiliary protection cross beam 5, the guide sleeve 6 is arranged on the guide rod 7, the cylinder fixing seat 11 and the connecting plate 9 which are arranged in the front and back are arranged on the lower end surface of the vehicle main longitudinal beam 10, the upper end surface of the guide sleeve 6 is connected with the lower end of the connecting plate 9, the head part of the buffer cylinder 8 is connected with the auxiliary protection cross beam 5, and the tail part is connected with the cylinder fixing seat 11; the main air cylinder 12 arranged on the vehicle is sequentially connected with an oil-water separator 13, a pressure regulating valve 14, an atomizer 15 and a two-position five-way electromagnetic valve 16 through an air outlet pipe, and the two-position five-way electromagnetic valve controls the cylinder rod of the buffer cylinder 8 to stretch in a reversing way.
An adjustable silencer 17 is arranged on the buffer cylinder 8.
The main protection crossbeam 1 and the vice protection crossbeam 5 are parallel to each other, and energy-absorbing device 2 comprises a plurality of collapse structures, and a plurality of collapse structures set up between main protection crossbeam 1 and vice protection crossbeam 5, and two tip opposite sides of main protection crossbeam 1 and vice protection crossbeam 5 all are equipped with buffering spring fixing base 4, and buffering spring 3 sets up on buffering spring fixing base 4.
The guide rod 7 and the buffer cylinder 8 are perpendicular to the auxiliary protection cross beam 5, and the guide rod 7 and the buffer cylinder 8 are parallel to the main longitudinal beam 10 of the vehicle.
The length of the guide rod 7 is larger than the maximum telescopic distance of the cylinder rod of the buffer cylinder 8.
The number of the guide rods 7 is two, the two guide rods are respectively arranged below the corresponding main longitudinal beams 10 of the vehicle, and each guide rod 7 is provided with one guide sleeve 6 in a matched mode.
The number of the buffer cylinders 8 is two, and the two buffer cylinders are respectively arranged below the corresponding main longitudinal beam 10 of the vehicle.
The utility model comprises a mechanical structure and a gas circuit control part. The mechanical structure part is shown as attached figure 1 and comprises a main protection beam, an energy absorption device, a buffer spring fixing seat, an auxiliary protection beam, a guide sleeve, a guide rod, a buffer cylinder and the like. The gas circuit control part is shown in figure 2 and comprises a main air storage cylinder, an oil-water separator, a pressure regulating valve, an atomizer, a two-position five-way electromagnetic valve, an adjustable silencer and the like.
The mechanical structure part of the utility model is fixedly connected with a vehicle through a connecting plate and a cylinder fixing seat, as shown in figures 3 and 4. The attached figures 3 and 4 show the normal driving state of the vehicle, at the moment, the two-position five-way electromagnetic valve is powered off, the air cylinder retracts, and the mechanical part retracts to the shortest position, so that the safety during normal driving is ensured.
When the vehicle protection device is used for vehicle construction or detection operation, the two-position five-way electromagnetic valve is electrified, the air cylinder extends out, and the mechanical part extends to the farthest position, so that the vehicle is protected.
In this embodiment, referring to fig. 1-6, a vehicle active rear-end collision prevention safety protection system includes a main protection beam 1, an energy absorber 2, and an auxiliary protection beam 5 welded into an integral rear lower protection frame, wherein the main protection beam 1, the energy absorber 2, and the auxiliary protection beam 5 have individual structural strengths meeting the standard requirements of the national requirements of protection of the side surfaces and rear lower portions of automobiles and trailers. The energy absorption device 2 is composed of a plurality of collapsing structures, and gradually bends and deforms after the rear-end collision impact force exceeds a rated value, so that the impact buffering time is effectively prolonged, and the impact force is reduced. The opposite sides of the two ends of the main protection beam 1 and the auxiliary protection beam 5 are respectively welded with a buffer spring fixing seat 4, and a buffer spring 3 is fixed between the main protection beam 1 and the auxiliary protection beam 5, so that a certain buffer effect can be achieved on rear-end impact force. A guide rod 7 is welded on the auxiliary protection cross beam 5, a guide sleeve 6 and a connecting plate 9 fixed on a vehicle main longitudinal beam 10 are welded into a whole, the tail part of a buffer cylinder 8 is connected with a cylinder fixing seat 11 fixed on the vehicle main longitudinal beam 10, and the head part of the buffer cylinder is connected with the auxiliary protection cross beam 5.
In the gas path control part, a gas pipe is led out from a main air storage cylinder 12, moisture in air is filtered by an oil-water separator 13, pressure is reduced by a pressure regulating valve 14, lubricating oil mist is added to the gas by an atomizer 15, a cylinder rod of a buffer cylinder 8 is controlled to stretch in a reversing way by a two-position five-way electromagnetic valve 16, the maximum impact force borne by the buffer cylinder 8 is controlled by the pressure regulating valve 14, and the contraction time of the buffer cylinder 8 is regulated by an adjustable silencer 17 to control the buffer time.
The working process is as follows:
when the vehicle normally runs, the two-position five-way electromagnetic valve 16 is powered off, the gas in the main vehicle air storage cylinder 12 enters the rod cavities of the 2 buffer air cylinders 8 through reversing, and the cylinder rods contract to drive the mechanical structure part to contract to the shortest position. The state can meet the standard requirements of the national protection requirements of the side surfaces and the rear lower parts of the automobile and the trailer, and a set of energy absorption device 2 is added compared with the standard, so that the damage degree of accidents can be effectively reduced when rear-end collision occurs.
When the vehicle works, the two-position five-way electromagnetic valve 16 is electrified, the gas in the main vehicle air storage cylinder 12 enters the rodless cavities of the 2 buffer air cylinders 8 through reversing, and cylinder rods extend out to drive the mechanical structure part to extend to the longest position. When the rear-end collision happens, under the action of impact force, the gas in the rodless cavities of the 2 buffer cylinders 8 is gradually compressed, the cylinder rods are shortened, and meanwhile, the gas enters the rod cavities from the adjustable silencer 17 under the action of negative pressure. The pressure regulating valve 14 regulates the pressure of the gas path, controls the maximum impact force borne by the buffer cylinder 8, and regulates the air input of a rod cavity of the buffer cylinder 8 according to the opening degree of the adjustable silencer 17, thereby controlling the buffering time. When the rear-end collision happens, the 2 buffer air cylinders 8 buffer the rear-end collision, and the impact force is gradually reduced. The guide rod and the guide sleeve ensure that the mechanical structure can retract smoothly when the buffer cylinder 8 contracts. When the cylinder rods of the 2 buffer cylinders 8 are compressed to the shortest position by impact force, the residual impact force is absorbed by the collapse of the energy absorption device 2 and the compression of the buffer springs 3. And finally, the main protection beam 1 and the auxiliary protection beam 5 have rigid protection effect, so that the rear-end vehicle is prevented from entering the rear-end vehicle.
Under the combined action of the buffer cylinder 8, the energy absorption device 2 and the buffer spring 3, two buffer functions of gas compression and mechanical structure collapse are utilized, and compared with the traditional pure rigid protection, the personal injury of drivers and passengers of rear-end vehicles and the property loss of vehicles of both sides are reduced to the maximum extent. The utility model does not affect the overall dimension of the vehicle and the national vehicle safety standard, and has very low cost.
Claims (7)
1. The utility model provides a vehicle initiative is prevented knocking into back safety protection system which characterized in that: comprises a main protective cross beam (1), an energy absorption device (2), an auxiliary protective cross beam (5), a guide sleeve (6), a guide rod (7), a buffer cylinder (8), a connecting plate (9), a cylinder fixing seat (11), a main vehicle air cylinder (12), an oil-water separator (13), a pressure regulating valve (14), an atomizer (15) and a two-position five-way solenoid valve (16), wherein the energy absorption device (2) is arranged between the protective cross beam (1) and the auxiliary protective cross beam (5) to integrally form a rear lower protective frame which is arranged below the rear part of a vehicle main longitudinal beam (10), the end part of the guide rod (7) is fixed on the auxiliary protective cross beam (5), the guide sleeve (6) is arranged on the guide rod (7), the cylinder fixing seat (11) and the connecting plate (9) which are arranged front and back are arranged on the lower end surface of the vehicle main longitudinal beam (10), and the upper end surface of the guide sleeve (6) is connected with the lower end of the connecting plate (9), the head of the buffer cylinder (8) is connected with the auxiliary protection beam (5), and the tail of the buffer cylinder is connected with the cylinder fixing seat (11); the main air storage cylinder (12) arranged on the vehicle is sequentially connected with an oil-water separator (13), a pressure regulating valve (14), an atomizer (15) and a two-position five-way electromagnetic valve (16) through an air outlet pipe, and the two-position five-way electromagnetic valve controls the cylinder rod of the buffer cylinder (8) to stretch in a reversing way.
2. The active rear-end collision prevention safety protection system for the vehicle as claimed in claim 1, wherein: and an adjustable silencer (17) is arranged on the buffer cylinder (8).
3. The active rear-end collision prevention safety protection system for the vehicle according to claim 1 or 2, characterized in that: main protection crossbeam (1) and vice protection crossbeam (5) parallel arrangement each other, energy-absorbing device (2) are a plurality of collapse structures and constitute, and a plurality of collapse structures set up between main protection crossbeam (1) and vice protection crossbeam (5), and two tip opposite sides of main protection crossbeam (1) and vice protection crossbeam (5) all are equipped with buffering spring fixing base (4), and buffering spring (3) set up on buffering spring fixing base (4).
4. The active rear-end collision prevention safety protection system for the vehicle according to claim 1 or 2, characterized in that: the guide rod (7) and the buffer cylinder (8) are perpendicular to the auxiliary protection cross beam (5), and the guide rod (7) and the buffer cylinder (8) are parallel to the main longitudinal beam (10) of the vehicle.
5. The active rear-end collision prevention safety protection system for the vehicle according to claim 1 or 2, characterized in that: the length of the guide rod (7) is larger than the maximum telescopic distance of the cylinder rod of the buffer cylinder (8).
6. The active rear-end collision prevention safety protection system for the vehicle according to claim 1 or 2, characterized in that: the two guide rods (7) are respectively arranged below the corresponding main longitudinal beam (10) of the vehicle, and each guide rod (7) is provided with one guide sleeve (6) in a matched mode.
7. The active rear-end collision prevention safety protection system for the vehicle according to claim 1 or 2, characterized in that: the two buffer cylinders (8) are respectively arranged below the corresponding main longitudinal beam (10) of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121858061.3U CN215398562U (en) | 2021-08-10 | 2021-08-10 | Vehicle active rear-end collision prevention safety protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121858061.3U CN215398562U (en) | 2021-08-10 | 2021-08-10 | Vehicle active rear-end collision prevention safety protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215398562U true CN215398562U (en) | 2022-01-04 |
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ID=79659292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121858061.3U Active CN215398562U (en) | 2021-08-10 | 2021-08-10 | Vehicle active rear-end collision prevention safety protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215398562U (en) |
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2021
- 2021-08-10 CN CN202121858061.3U patent/CN215398562U/en active Active
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