CN202863361U - Car tail guardrail with adjustable height - Google Patents
Car tail guardrail with adjustable height Download PDFInfo
- Publication number
- CN202863361U CN202863361U CN2012204896823U CN201220489682U CN202863361U CN 202863361 U CN202863361 U CN 202863361U CN 2012204896823 U CN2012204896823 U CN 2012204896823U CN 201220489682 U CN201220489682 U CN 201220489682U CN 202863361 U CN202863361 U CN 202863361U
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- panel
- car
- connection bracket
- car tail
- fixed
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Abstract
The utility model discloses a car tail guardrail with adjustable height. The car tail guardrail with adjustable height comprises a panel preventing from crashing, two connection devices and a fixed hydraulic cylinder. Two ends of the panel are fixed on a car chassis through the two connection devices, and the connection devices comprise connection brackets. The connection brackets are fixed on the car chassis and are connected with the panel through pull rods and a bearing plate. The connection brackets, the panel, the pull rods and the bearing plate form a four bar mechanism. The two pull rods are connected with each other through a horizontal connecting rod, and the fixed hydraulic cylinder is connected with the horizontal connecting rod at the middle part through a clamp. The height of the protective panel from the ground is adjusted through the four bar mechanism of the car tail guardrail in order to reach the ideal required height with the car tail.
Description
Technical field
The utility model relates to a kind of protection means for automobile, belongs to the automotive safety apparatus field, especially a kind of adjustable for height automobile tail guardrail.
Background technology
The invention of automobile has changed people's the mode of production and life greatly with universal, and the while also provides strong support for the whole mankind's life and production.When but automobile greatly is convenient for people to live, also brought very serious problem, wherein the automotive safety problem has become the important social concern that national governments pay close attention to, also becomes the problem that each automobile vendor must consider when the research and development new model.
Cause excessive loss for fear of auto against or when knocking into the back, usually at automobile tail protective device is installed, reduce or eliminate the impact that produces when knocking into the back.At present; the protective device of full-sized car afterbody normally adopts channel-section steel and plate to be formed by connecting by welding and bolt on the home market; with being connected of vehicle body crossbeam also be with bolts; this apparatus structure is simple; with low cost; need not safeguard or seldom need and safeguard; and higher rigidity and intensity can prevent effectively that rear car rear-end impact from piercing (anti-drilling); but the shortcoming of this device is just can not regulate easily terrain clearance once installing; when the dilly speed that knocks into the back is larger; dilly front bumper or other protective device respective heights that can not match will be unfavorable for protecting the vehicle crew's of knocking into the back life security.
In addition, according to Institutes Of Technology Of Changsha " research of crank block type CST type lorry protecting device for rear lower part ", proposition utilizes screw thread shearing type energy absorption device (CST) can change traditional crushing type energy-absorbing mechanism, utilizes the punching threaded process to absorb collision energy.But we also can see; such device just acts on bringing into play as passive safety feature; can not be different because of car; can only protect best specific vehicle when being installed at truck tail; 70% of crash energy will be absorbed by vehicle frame when the data demonstration bumps, if guard rail can not contact with the desirable force part of vehicle, the effect of this design apparatus performance is less with making; therefore, need further in addition improvement and bring new ideas.
The utility model content
The technical problems to be solved in the utility model provides a kind of adjustable for height automobile tail guardrail; this guardrail terrain clearance is regulated automatically according to the specific features of back vehicle; the bumper height that makes terrain clearance and rear trail dilly is complementary; the buffer action of the parts such as anti-drilling and performance dilly energy-absorbing bumper, vehicle body to greatest extent during in case bump; the protection operator's compartment is not encroached on, and the personnel in the dilly are effectively protected.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of adjustable for height automobile tail guardrail, comprise for crashproof panel, the two ends of described panel are fixed by two set of connection devices and car chassis, it is characterized in that described connecting device comprises connection bracket, described connection bracket and car chassis are fixed, be connected with force bearing plate by pull bar between connection bracket and the panel, and connection bracket, panel, pull bar and force bearing plate form four-bar linkage, connect by tranverse connecting rod between two pull bars, the middle part of described tranverse connecting rod is connected with the hydraulic actuating cylinder of fixing by holding card.
Said structure is further limited, is laid with the LED lamp on the outside face of described panel, to do the caution of rear end collision signal or out of Memory prompting.
Design of the present utility model utilizes four-bar linkage to realize the movement of crashproof panel when mainly conceiving collision.As everyone knows, four-bar linkage structure is simple, with low cost and have a good motion characteristics.The design has utilized the four-bar linkage that waits brachium, and when a bar fixedly the time, relative rod member is regardless of all parallel with fixed link in any shift position, and the motion credibility of four-bar linkage is high.
Panel is as main stress deformation parts, effect for whole mechanism is most important, in the utility model, counter plate has been done suitable improvement, mainly concentrate on: (1) changes to be welded to connect and is that bolt connects, main benefit is the convenience of dismounting, also prevents from causing fracture because weld stress increases severely in the process that bumps, and has influence on crashproof effect; (2) increase arc transition at two ends, can actv. avoid when the trailing flank collision occurs the injury of the formula of invading is avoided in the protection of rear car.
The design realizes cost and practical situations are considered in the constraint of motion by four-bar linkage, adopts hydraulic actuating cylinder as propulsion source, but cost saving and do not affect dead weight of vehicle, dynamic property, fuel economy etc.
The beneficial effect that adopts technique scheme to produce is: the principal feature of (1) the utility model device, the anti-formula guard rail that pierces that changes in the past is the guard rail of real-time variable gap initiatively, the effectively effect of the collision protection endergonic structure of performance collision vehicle self.Although this device is less from the energy-absorbing effect, it can fully play the collision energy-absorbing effect of dilly.So than the rear lower guard rail of existing lorry, anti-drilling effect is more outstanding; (2) another characteristics of the design are exactly the introducing of LED caution system, and the driver can open two the sudden strain of a muscle with the vehicle around the caution in abnormal condition in the past, but such way is too simple, and the information of transmission is too single.The introducing of caution system, can according to the distance of front vehicle, point out on one's own initiative the chaufeur of front vehicle to drive with caution, thereby can avoid the generation of rear-end collision.Caution system can also be issued much information in addition, can be used as the acquisition of information approach of other vehicles, has also promoted the traffic safety of surrounding vehicles in assurance self traffic safety.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model;
Fig. 3 is the structural representation of holding card;
Wherein: 1, connection bracket, 2, holding card, 3, pull bar, 4, force bearing plate, 5, panel, 6, hydraulic actuating cylinder, 7, tranverse connecting rod.
The specific embodiment
1 and 2 as can be known with reference to the accompanying drawings, the utility model is specially a kind of adjustable for height automobile tail guardrail, comprise for crashproof panel 5, the two ends of panel 5 are fixed by two set of connection devices and car chassis, connecting device comprises connection bracket 1, connection bracket 1 is fixed with car chassis, are connected with force bearing plate by pull bar 3 between connection bracket 1 and the panel 5 and are connected, and connection bracket 1, panel 5, pull bar 3 and force bearing plate 4 form four-bar linkage, about connect by tranverse connecting rod 7 between two pull bars 3, the middle part of tranverse connecting rod 7 is connected with the hydraulic actuating cylinder 6 of fixing by holding card 2.
The utility model mainly is the adjustability that realizes the protection face board terrain clearance by four-bar linkage, reaching the most Utopian requirement with the collision energy-absorbing device with the afterbody vehicle highly is complementary, realize the active of protecting device for rear lower part, and introduced on this basis rear portion LED caution system, more be conducive to the prevention for rear-end collision.The designing requirement of mechanics is take GB as foundation, and main purpose is that traditional protecting device for rear lower part is improved, and makes its ability with motion, carries out in conjunction with to form a complete system with electric-control system again.
Electric-control system in the utility model is similar to ACC (Adaptive Cruise Control) system; place the spacing acquisition radar of truck tail incessantly the rear to be scanned; and read the speed information of this car; when the vehicle spacing at rear less than safety distance the time; system will send information warning at crashproof panel warning screen; communicate by letter with front vehicle simultaneously and determine the model of its vehicle; in the information of vehicles storehouse of self; read corresponding information to regulate the terrain clearance of protecting device for rear lower part; make two cars when rear-end collision occurs, front vehicle is carried out the actv. protection.In the time of after front vehicle reduces the speed of a motor vehicle or overtakes other vehicles, returning to safety distance, the caution prompting disappears, protecting device for rear lower part automatically match with the corresponding terrain clearance of front vehicle after, the LED display system can be worked independently, plays the effect of out of Memory prompting.
The design of Hydraulic System aspect, the direct driving of protecting device for rear lower part derives from hydraulic actuating cylinder, its type is selected double acting hydraulic cylinder, for making hydraulic actuating cylinder when collision is stressed, satisfy the requirement of holding capacity, check valve is adopted in left side at hydraulic actuating cylinder, for making hydraulic actuating cylinder freely motion in normal work, be parallel with by pass valve or be aided with damping system at check valve.
Improvement in the utility model has two parts: first is for the improvement of traditional lorry with lower rear bump guard, make it can cooperate active safety system, regulating in real time terrain clearance and rear according to the signal of vehicle-mounted computer or ECU (Electrical Control Unit) (ECU) trails the bumper height of dilly and is complementary, the buffer action of the parts such as energy absorbing bumper, vehicle body of anti-drilling and performance dilly to greatest extent when bumping, the protection operator's compartment is not encroached on, and small-sized occupant is protected effectively; Second portion mainly is the mentality of designing general introduction to the active safety information system, comprises that mainly the information transmission system, the afterbody LED between each car warns the compositions such as display system, spacing monitoring system.
The design's meaning is former passive-type protecting device for rear lower part is modified into proactive active safety system, can effectively protect the traffic safety of lorry ambient environment, and this meets China Automobile Industry trend.The simultaneously development of the communication technology and electronic control technology also provides the failure-free technical guarantee for the design.Can say that the design has at first introduced the thought of active safety in lorry anti-knocked into the back field with effective protection front vehicle safety.
Claims (2)
1. adjustable for height automobile tail guardrail, comprise for crashproof panel (5), the two ends of described panel (5) are fixed by two set of connection devices and car chassis, it is characterized in that described connecting device comprises connection bracket (1), described connection bracket (1) is fixed with car chassis, be connected 4 by pull bar (3) with force bearing plate between connection bracket (1) and the panel (5)) be connected, and connection bracket (1), panel (5), pull bar (3) and force bearing plate (4) form four-bar linkage, connect by tranverse connecting rod (7) between two pull bars (3), the middle part of described tranverse connecting rod (7) is connected with the hydraulic actuating cylinder (6) of fixing by holding card (2).
2. a kind of adjustable for height automobile tail guardrail according to claim 1 is characterized in that being laid with the LED lamp on the outside face of described panel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204896823U CN202863361U (en) | 2012-09-25 | 2012-09-25 | Car tail guardrail with adjustable height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204896823U CN202863361U (en) | 2012-09-25 | 2012-09-25 | Car tail guardrail with adjustable height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202863361U true CN202863361U (en) | 2013-04-10 |
Family
ID=48030107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204896823U Expired - Fee Related CN202863361U (en) | 2012-09-25 | 2012-09-25 | Car tail guardrail with adjustable height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202863361U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600713A (en) * | 2013-11-21 | 2014-02-26 | 上海神舟汽车节能环保有限公司 | Anti-collision device for sweeper truck |
| CN106740602A (en) * | 2016-11-23 | 2017-05-31 | 安徽江淮汽车集团股份有限公司 | Vehicle rear protecting |
| CN107697013A (en) * | 2017-11-09 | 2018-02-16 | 吉林大学 | A kind of commercial car air pressure actively adjusts rear |
| CN113232621A (en) * | 2021-05-06 | 2021-08-10 | 江苏安全技术职业学院 | Rear protection device of engineering vehicle |
-
2012
- 2012-09-25 CN CN2012204896823U patent/CN202863361U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600713A (en) * | 2013-11-21 | 2014-02-26 | 上海神舟汽车节能环保有限公司 | Anti-collision device for sweeper truck |
| CN106740602A (en) * | 2016-11-23 | 2017-05-31 | 安徽江淮汽车集团股份有限公司 | Vehicle rear protecting |
| CN107697013A (en) * | 2017-11-09 | 2018-02-16 | 吉林大学 | A kind of commercial car air pressure actively adjusts rear |
| CN107697013B (en) * | 2017-11-09 | 2023-07-18 | 吉林大学 | Rear protection device for active air pressure adjustment of commercial vehicle |
| CN113232621A (en) * | 2021-05-06 | 2021-08-10 | 江苏安全技术职业学院 | Rear protection device of engineering vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20130925 |