WO2017083997A1 - 内设多重缓冲吸能屏障的汽车保险杠 - Google Patents

内设多重缓冲吸能屏障的汽车保险杠 Download PDF

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Publication number
WO2017083997A1
WO2017083997A1 PCT/CN2015/000792 CN2015000792W WO2017083997A1 WO 2017083997 A1 WO2017083997 A1 WO 2017083997A1 CN 2015000792 W CN2015000792 W CN 2015000792W WO 2017083997 A1 WO2017083997 A1 WO 2017083997A1
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energy absorbing
bumper
pier
energy
built
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PCT/CN2015/000792
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English (en)
French (fr)
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陈达兵
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陈达兵
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Priority to PCT/CN2015/000792 priority Critical patent/WO2017083997A1/zh
Publication of WO2017083997A1 publication Critical patent/WO2017083997A1/zh

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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
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact

Definitions

  • the invention relates to an accessory in the field of automobile manufacturing, in particular to an automobile bumper with a multi-buffered energy absorption barrier, which belongs to the technical field of passive safety of automobiles.
  • the Chinese government refers to the car insurance.
  • the international standard for bumpers has established the national standard for GB17354-1998 automotive front and rear protection devices. According to this standard, in 2003, the flat-head mini-van was forced to improve the car body design and bumper measures. Under the mandatory policy, some manufacturers adopted measures to install external bumpers. These are various. External bumpers, some of which are bent by steel plates or steel pipes. When there is a collision, there is a certain buffering effect, but it is far from the national standard.
  • the object of the present invention is to overcome the deficiencies of the prior art and provide a bumper with multiple buffer positions and multiple energy absorption functions, which can effectively cope with low-speed and low-speed collision accidents, and can effectively reduce the medium-speed collision accident.
  • the utility model relates to a car bumper with a multi-bubble energy absorption barrier, which is composed of an inner bar tire 1, a buffer energy absorption inner tank 2, a reinforcing bracket 3, a fastener 4 and a peripheral plate 5, and is mounted on the left and right side steel beams of the automobile chassis.
  • the built-in bar tire 1 is composed of an upper casing 6, a lower casing 7 and a plurality of pulling rods 8.
  • the buffering energy-absorbing inner tank 2 is locked by a pulling rod 8 at a central position between the upper and lower casings, if necessary. Extending to both ends, the pulling rod is disposed opposite to the sides from the center point of the housing, and the inclination is 40° ⁇ 5°.
  • the pulling rods are two groups before and after, and the two groups are equally arranged.
  • Each pier pile is attached with two pier supports, the pier support is in the shape of an arc, and the two pier supports are symmetrically standing on both sides of the pier pile, and the top side is on the vertical shell, and the inner side is connected with the pier pile.
  • the buffered energy absorption inner tank 2 is made of an aluminum alloy ultra-thin sheet, and has a regular hexagonal honeycomb shape, and the buffered energy absorption inner liner is made of an aluminum alloy sheet material, and the structure is a honeycomb structure; each grid is made of an aluminum alloy.
  • the sheet is made of a hexagonal shape, the sheet is thicker at 0.03 mm to 0.08 mm, and the aperture is 10 mm to 18 mm.
  • the buffered energy absorbing liner has a certain height.
  • the buffered energy absorbing inner tank in the built-in bar can also be extended from the middle position to the left and right sides or at the left and right ends of the built-in bar. Until the left and right side corners of the front and rear ends of the car are protected. Because of its large internal surface area, each hexagonal tube hole is relatively independent and firmly connected to each other, and the buffer energy absorption inner edge hardness is greater than the inner cell hardness, and the hexagonal inner space is softly and hardly spaced from top to bottom.
  • the cushioning energy absorption inner edge hardness is greater than the inner cell hardness, and the hexagonal inner space is from top to bottom soft and hard intervals.
  • a cork is interposed in the cell of the buffered energy absorbing inner tank; the height and thickness of the cork correspond to the aperture and height of the buffered energy inner cell.
  • the ultra-thin sheet has the advantages of squeezing, stretching, curling, tearing and the like which are difficult to be obtained by other materials, and the impact strength is high in response to the impact, and the above deformation is advantageous for absorbing and releasing energy in a large amount.
  • the reinforcing brackets are shaped like bridge piers, and screw holes are arranged on the pier piles on both sides.
  • the pier type reinforcement bracket improves the strength of the bumper and the overall impact resistance.
  • Each pier pile is attached with two pier supports, the pier support is in the shape of an arc, and the two pier supports are symmetrically standing on both sides of the pier pile, and the top side is on the vertical shell, and the inner side is connected with the pier pile.
  • Said The fasteners 4 are used for the connection between the components of the bumper and between the components and the chassis of the vehicle.
  • the assembly sequence of the components of the automobile bumper is: first, the assembly of the built-in bar tire 1 is completed, and the assembly of the built-in bar tire 1 involves the upper casing 6, the lower casing 7, the pulling rod 8, the fastener 4, and the tire tire. 5 parts of the buffering energy tank 2, etc., the position of the upper and lower casings is fixed in the assembly step, then the upper and lower casings are edge-locked with two pulling rods, and the buffering energy tank 2 is placed, and the rest is used.
  • the pulling rod and the fastener integrally lock the upper and lower housings.
  • the utility model relates to a bumper with a multi-buffered energy absorption barrier, which has three obvious buffer energy absorption zones.
  • the first buffer energy absorption zone is between the upper and lower casings of the built-in bar tire 1 , and the pipe hole structure of the buffer energy absorption inner tank 2 is a second buffer energy absorption zone, which is composed of a reinforcing bracket, an upper and a lower casing and a pulling rod.
  • the stress structure is a third buffer energy absorption zone.
  • the above areas constitute multiple safety barriers.
  • Figure 1 shows the car bumper with multiple buffering energy barriers.
  • Figure 2 shows the structure of the built-in bar tire
  • FIG. 3 Schematic diagram of the deformation of the buffered energy absorption liner after impact
  • serial numbers in the figure are: built-in bar tire 1, buffer energy absorbing inner tube 2, reinforcing bracket 3, fastener 4, peripheral plate 5, upper casing 6, lower casing 7, and pulling rod 8.
  • an automobile bumper reinforcement device with a plurality of buffer performance zones is composed of a built-in bar tire, a buffer energy absorber, a reinforcing bracket and a fastener, and a plurality of vehicles with buffer performance zones are arranged therein.
  • the bumper reinforcement device is installed in the peripheral plate of the front and rear bumper of the automobile, and is connected with the left and right side steel beams of the automobile chassis through fasteners, and the built-in bar tire is provided with a buffer energy absorber, and the buffer energy absorber is fixed on the built-in bar tire.
  • the buffer absorber is composed of an aluminum alloy ultra-thin plate, and has a shape of a regular hexagonal honeycomb.
  • the hexagonal honeycomb has a large internal surface area, and each of the hexagonal tube holes is relatively independent and firmly coupled with each other. Because it is made of ultra-thin aluminum alloy sheet, it also has the advantages of squeezing, stretching, curling, tearing and deformation which are difficult to obtain by other materials. When the front side responds to impact, the above deformation can be absorbed in a large amount. And releasing energy, the regular hexagonal honeycomb buffer absorber is installed in the middle position of the built-in bar tire, and the built-in bar tire is composed of an upper casing, a lower casing and a plurality of pulling rods, and the pulling rod is self-shelled.
  • the heart points are reversely set to the sides, the inclination is 40° ⁇ 5°, and the pulling rods are two groups before and after, and the two groups are equally arranged.
  • the built-in bar tire is fixed on the steel beam of the automobile chassis through the reinforcing bracket, and the reinforcing bracket is a pier type, which is composed of the pier piles on both sides, and the screw holes are installed on the pier pile.
  • the pier type reinforcement bracket improves the strength of the bumper and the overall impact resistance.
  • the pier pile is connected with the steel plate of the automobile chassis through fasteners, and the reinforcement bracket securely locks the built-in bar tire on the pier pile through the fastener.
  • the reinforcing bracket is made of high quality steel.
  • the fasteners are used for connecting between the components of the bumper reinforcement device, the components and the chassis of the automobile, and the front and rear peripheral panels of the automobile bumper.
  • the assembly sequence of each component of the automobile bumper reinforcement device is as follows: first, the assembly of the built-in bar tire (1) is completed, and the assembly of the built-in bar tire (1) involves the upper casing (6), the lower casing (7), and the pulling rod. (8), fasteners (4) and the built-in buffer absorber (2) of the bar tires, etc., the position of the upper and lower casings is fixed in the assembly step, and then the upper and lower casings are made by two pulling rods.
  • the edge is locked, placed in the buffer absorber, and the upper and lower housings are integrally locked by the remaining pulling rods and fasteners.
  • the bumper reinforcement device for improving the anti-impact performance of the automobile has three distinct buffer regions.
  • the built-in bar tire (1) is the first buffer zone between the upper and lower casings, and the tube hole structure of the aluminum "honeycomb" core material is the second buffer zone, which is composed of the reinforcing bracket, the upper and lower casings and the pulling rod.
  • the structure is the third buffer.
  • the above three buffers form three lines of defense against impact.
  • the invention is in accordance with the requirements for inspection and testing of auto parts specified by the state. Static collision and dynamic collision tests were completed. The static test was carried out in the Collision Laboratory of Jiangsu University. The dynamic test was carried out at the China Automotive Quality Monitoring Center in Tianjin. The live DVD disc and video tape of the comparison impact test recorded by the center's high-speed camera and video camera were provided. The School of Automotive and Transportation Engineering of Jiangsu University wrote an analysis and evaluation report based on the data of dynamic crash tests.
  • test curve is shown in Figure 5-8.
  • this kind of automobile bumper with multiple buffering energy absorption barrier is composed of built-in bar tire, inner liner, reinforcing bracket, fasteners and peripheral plates, which are fixed on the steel beam of the automobile chassis.
  • the front and rear beam heads are tightly connected to the car body to form a complete stress structure.
  • the stress structure as a whole undertakes the task of transmitting, buffering, absorbing and releasing energy.
  • the peripheral panel first contacts the impact, and then through the upper and lower housings of the built-in bar tire and the buffered energy absorbing inner casing in the housing, the impact force rapidly shifts the wide surface and depth until it is transferred to the entire vehicle body through the bracket.
  • the process of energy transfer and diffusion is the process of energy release. The energy is smoothly transferred and released smoothly, and the damage degree of the impact accident is greatly reduced.
  • the buffer zone and the energy absorption zone are reserved, so that each buffer zone and energy absorption zone become a strong defense line against impact.
  • this kind of car bumper with multiple buffering energy-absorbing barriers not only pays attention to the strength of the material, but also considers its energy absorption and buffering effect, buffering energy-absorbing liner.
  • the aluminum alloy honeycomb core material is selected, and its special structure and material properties enable it to exert a special buffering energy absorption effect. It also has light weight, can accept the "wire cutting" process, has good heat dissipation performance, and does not affect the advantages of front and rear end ventilation of the car.
  • the upper and lower casings and the pulling rods of the built-in bar tires are also made of light metal materials such as aluminum or aluminum alloy, which have both strength and press processing.
  • this kind of bumper with multiple buffering energy-absorbing barriers makes full use of the limited space of the front and rear ends of the car body. It has strict layout and adopts “bridge” shape.
  • the built-in bar tire is "Bridge surface”
  • the reinforcement bracket is a "bridge pier”
  • the parts between the components are tightly locked and interlocked. This shape not only increases the force surface, improves the stability, but also increases the pulling force.
  • the present invention has practical application value and broad market development prospects.

Abstract

一种内设多重缓冲吸能屏障的汽车保险杠，包括内置杠胎（1）、缓冲吸能内胆（2）、加强支架（3）、紧固件（4）和外围板（5）。内置杠胎（1）中设有缓冲吸能内胆（2），内置杠胎（1）由上壳体（6）、下壳体（7）和数根牵拉杆（8）组成。缓冲吸能内胆（2）由铝合金超薄片材制成，呈正六边形蜂窝状，安装在内置杠胎（1）的中间位置。内置杠胎（1）通过加强支架（3）固定在汽车底盘钢梁上，形成了一个完整的应力结构，由应力结构整体承担传递、缓冲、吸收和释放能量的任务。充分利用了汽车前后端有限的区位空间，严谨布局，预留了多个缓冲吸能区，部件之间件件紧锁，环环相扣，铝质缓冲吸能内胆体表面积大，释放能量快。还具有加工安装方便、结构稳定和通用性强等优点。

Description

内设多重缓冲吸能屏障的汽车保险杠 技术领域
本发明涉及汽车制造领域的一种配件，具体说，该配件涉及一种内设多重缓冲吸能屏障的汽车保险杠，属于汽车被动安全技术领域。
技术背景
汽车作为人类的一种快捷方便的代步工具和运输工具，在许多国家已成普及之势。中国自改革开放以来，汽车的保有量以每年10％左右的速度增长。目前仅轿车已达3500万辆以上。但与此同时，汽车交通事故也出现了快速的增长趋势。据中国公安部交通管理局统计：中国因交通事故伤亡人数，以每年21％的速度在增长。保险公司也为此赔付了巨额费用。为减少和规避汽车交通事故，一方面要靠提高全民的安全防患意识，从主观方面减少事故，另一方面要靠提高汽车自身的安全性能，尤其是要提高汽车安全部件的性能，保险杠属于汽车被动安全系统的重要构件，它由前杠、后杠、侧杠组成，担负着来自各个方向撞击力的防护责任，是汽车对付突发交通事故的第一道防线。但目前有些保险杠只由一块注塑围板和一对简易支架组成，围板后边没有像样的钢质杠胎，既无一定的强度，又没有可缓冲的区域和吸能材料。
中国政府根据汽车保险杠的上述现实状况，参照汽车保 险杠国际标准，制订了GB17354-1998汽车前后端保护装置的国家标准。根据这一标准，2003年对平头式的微型面包车采取了强制性改进车体设计和保险杠的措施，在这一强制政策推动下，一些厂家采取了加装外保险杠的措施，这些五花八门的外置式保险杠，有的用钢板或钢管弯折而成，发生碰撞时，有一定的缓冲效应，但与国家标准还相距甚远。
长期以来，汽车保险杠没有理想的更新换代产品，提高汽车保险杠的安全防护性能为全社会所关注。
发明内容
本发明的目的是为了克服现有技术的不足，提供一种具有多个缓冲区位、多重吸能功效的汽车保险杠，它能有效应对中低速、低速碰撞事故，能有效降低中速碰撞事故对车辆及乘员的伤害程度。
本发明的目的是通过以下技术方案实现的：
下面结合附图和实施例对本发明的内容和具体实施方式作进一步的详细描述：
一种内设多重缓冲吸能屏障的汽车保险杠，由内置杠胎1、缓冲吸能内胆2、加强支架3和紧固件4和外围板5组成，安装在汽车底盘左右侧钢梁上。所述内置杠胎1由上壳体6、下壳体7和数根牵拉杆8组成，缓冲吸能内胆2通过牵拉杆8锁定在上下壳体之间的中部位置，必要时可向两端延伸，牵拉杆采用自壳体中心点向两侧反向设置，斜度为40°±5°， 牵拉杆为前后两组，两组均等配置。所述的每根墩桩附有两个墩托，墩托呈弧形状，两个墩托对称的立于墩桩两侧，顶端立壳体上，内侧面与墩桩连体。所述缓冲吸能内胆2由铝合金超薄片板制成，呈正六边形蜂窝状，缓冲吸能内胆用铝合金薄片材制成，结构为蜂窝结构；每一格均由铝合金薄片制成，且每一格呈六边形，薄片厚在0.03毫米-0.08毫米；孔径10毫米-18毫米，缓冲吸能内胆有一定的高度。根据需要内置杠胎中的缓冲吸能内胆也可以自中部位置向左右侧延伸或在内置杠胎左右两端设置。直至将汽车前后端左右侧角保护起来。由于其内表面积大，每一个六边形管孔既相对独立又相互牢固联结，缓冲吸能内胆边缘硬度大于内格硬度，所述的六角内格的由上至下软硬间隔。所述的缓冲吸能内胆边缘硬度大于内格硬度，所述的六角内格的由上至下软硬间隔。在缓冲吸能内胆的蜂窝格内间隔插有软木塞；软木塞的高度、粗细与缓冲吸能内胆蜂窝格的孔径与高度相应。加上超薄片材具有其它材料难以具备的可挤压、延展、卷曲、撕裂等形变优点，在应对撞击时，抗击强度高，上述形变有利于大量地吸收并释放能量。
所述加强支架形似桥墩，两侧墩桩上有安装螺孔。桥墩式加强支架提高了保险杠的强度与整体抵御撞击的性能。所述的每根墩桩附有两个墩托，墩托呈弧形状，两个墩托对称地立于墩桩两侧，顶端立壳体上，内侧面与墩桩连体。所述 的紧固件4用于保险杠各部件之间，各部件与汽车底盘之间的连接。汽车保险杠各部件的组装顺序为：首先完成内置杠胎1的组装，内置杠胎1的组装涉及到上壳体6、下壳体7、牵拉杆8、紧固件4及杠胎内置缓冲吸能内胆2等5个部件，组装步骤上先固定好上下壳体的位置，然后用两根牵拉杆对上下壳体作边缘锁定，放入缓冲吸能内胆2，用其余的牵拉杆及紧固件对上下壳体作整体锁定。所述的一种内设多重缓冲吸能屏障的保险杠，它有3个明显的缓冲吸能区。内置杠胎1上下壳体之间为第一缓冲吸能区，缓冲吸能内胆2的管孔结构为第二缓冲吸能区，由加强支架、上下壳体及牵拉杆等共同组成的应力结构为第三缓冲吸能区。上述区域组成了多道安全防护屏障。
说明书附图
图1内设多重缓冲吸能屏障的汽车保险杠示意图
图2内置杠胎结构示意图
图3抗撞后缓冲吸能内胆形变示意图
图4未抗撞缓冲吸能内胆结构图
图5加装内置杠胎后“普桑”保险杠碰撞时杠体左侧加速度传感器加速度时间历程曲线图
图6加装内置杠胎后“普桑”保险杠碰撞时杠体右侧加速度传感器加速度时间历程曲线图
图7“普桑”保险杠碰撞后杠体右侧加速度传感器加速度时间历程曲线图
图8“普桑”保险杠碰撞后杠体左侧加速度传感器加速度时间历程曲线图
图中序号标注为：内置杠胎1、缓冲吸能内胆2、加强支架3、紧固件4、外围板5、上壳体6、下壳体7和牵拉杆8。
具体实施方式
下面将结合附图和实施例对本发明专利的实质性内容作进一步的详细描述：
如图1所示为一种内设多个缓冲性能区的汽车保险杠加强装置，由内置式杠胎、缓冲吸能器、加强支架和紧固件组成，内设多个缓冲性能区的汽车保险杠加强装置安装在汽车前后端保险杠外围板内，通过紧固件与汽车底盘左右侧钢梁相联，内置式杠胎内部设有缓冲吸能器，缓冲吸能器固定在内置式杠胎的中间位置，缓冲吸能器由铝合金超薄片板组成，形状呈正六边形蜂窝状，六边形蜂窝状具有内表面积大，它的每一个六边形管孔既相对独立又相互牢固联结，由于它是用铝合金超薄板材制作而成，还具有其它材料难以具备的可挤压、延展、可卷曲、可撕裂和形变等优点，在正面应对撞击时，上述形变可以大量地吸收并释放能量，正六边形蜂窝状缓冲吸能器安装在内置式杠胎的中间位置，内置式杠胎由上壳体、下壳体和数根牵拉杆组成，牵拉杆采用自壳体中 心点向两侧反向设置，斜度为40°±5°，牵拉杆为前后两组，两组均等配置。内置式杠胎通过加强支架固定在汽车底盘钢梁上，加强支架呈桥墩式，由两侧墩桩组成，墩桩上有安装螺孔。桥墩式加强支架提高了保险杠的强度与整体抵御撞击的性能，墩桩通过紧固件与汽车底盘钢梁连接，加强支架通过紧固件将内置杠胎牢固地锁定在墩桩之上。加强支架选用优质钢材加工制作。所述的紧固件用于保险杠加强装置各部件之间，各部件与汽车底盘、汽车保险杠前后外围板之间的连接。汽车保险杠加强装置各部件的组装顺序为：首先完成内置杠胎(1)的组装，内置杠胎(1)的组装涉及到上壳体(6)、下壳体(7)、牵拉杆(8)、紧固件(4)及杠胎内置缓冲吸能器(2)等5个部件，组装步骤上先固定好上下壳体的位置，然后用两根牵拉杆对上下壳体作边缘锁定，放入缓冲吸能器，用其余的牵拉杆及紧固件对上下壳体作整体锁定。所述的这种用于提高汽车抗撞击性能的保险杠加强装置，它有3个明显的缓冲区域。内置杠胎(1)上下壳体之间为第一缓冲区，铝质“蜂窝”芯材的管孔结构为第二缓冲区，由加强支架、上下壳体及牵拉杆等共同组成的应力结构为第三缓冲区。上述3个缓冲区形成了抵御撞击的三道防线。
具体实施例：
本发明按照国家规定的汽车零部件检验检测要求，先后 完成了静态碰撞与动态碰撞试验。静态试验在江苏大学碰撞试验室进行，动态试验在天津市中国汽车质量监测中心进行，并提供了由该中心高速摄像机与录相机摄录的比对撞击试验的现场实况的DVD光盘和录相带，江苏大学汽车与交通工程学院依据动态碰撞试验数据写出了分析评估报告。
报告指出：天津中国汽车质量监测中心碰撞试验室对万元坤先生提供的用于跟“普桑”轿车配套的新型保险杠进行了比对性检测。这次检测所选择的碰撞速度为8km/h(一般检测速度为4km/h)，所选用的比对杠体是“普桑”原保险杠。下面是两次破坏性碰撞试验的加速度与时间历程处理数据：
Figure PCTCN2015000792-appb-000001
试验曲线如图5-8
根据上述加速度时间历程曲线以及碰撞试验处理数据分析如下：
(1)为“普桑”轿车配套的新保险杠与“普桑”原保险 杠比较，最大减速度均值由1.13g增加到1.41g，即最大动载荷由10.0kN增加到12.4kN，吸能效果约为“普桑”原保险杠的150％，增加吸能效果明显；
(2)“普桑”保险杠在第170ms时即开始达到试验装置所允许的变形，即与保险杠后的试验台车相接触，此时保险杠已不起吸能作用。而为“普桑”轿车配套的新保险杠一直到试验终了时也未与试验台车相接触，由此说明其吸能效果比“普桑”原保险杠要好得多。
(3)为“普桑”轿车配套的新保险杠吸能曲线平缓，符合汽车吸能的要求。
本发明的优点是：
1、从总体设计上看，这种内设多重缓冲吸能屏障的汽车保险杠，它由内置杠胎、内胆、加强支架、紧固件和外围板组成，固装在汽车底盘钢梁的前后端梁头上，与车体紧紧相连，形成了一个完整的应力结构。发生碰撞时，由应力结构整体承担传递、缓冲、吸收和释放能量的任务。外围板首先接触撞击，然后通过内置杠胎的上下壳体和壳体内的缓冲吸能内胆，撞击力迅速地进行宽面与深度转移，直至通过支架转移至整个车体。能量转移扩散的过程就是能量释放的过程，能量顺利转移，顺利释放，撞击事故的危害程度就会大大减轻。在总体设计上还尽可能多地预留了缓冲区与吸能区，使每一个缓冲区、吸能区都成为抵御撞击的坚固防线。
2、从材料选用上看，这种内设多重缓冲吸能屏障的汽车保险杠，在选用材料上不仅注重材质的的强度，还着重考虑到它的吸能与缓冲效果，缓冲吸能内胆选用铝合金蜂窝芯材，它特殊的结构和材料性能，使之能发挥特殊的缓冲吸能作用。它还具有质轻，可以接受“线切割”的工艺加工，散热性能好，不影响汽车前后端通风等优点。内置杠胎的上、下壳体及牵拉杆等部件也采用铝材或铝合金等轻金属材料，既有强度，又利于冲压加工。
3、从造型特点上看，这种内设多重缓冲吸能屏障的保险杠，充分利用了车体前后端有限的区位空间，既严谨布局，又采用了“桥式”造型，内置杠胎是“桥面”，加强支架是“桥墩”，部件之间件件紧锁，环环相扣。这样的造型不仅增加了受力面，提高了稳固性，也增加了牵拉力。
4、它具有通用性，这种内设多重缓冲吸能屏障的汽车保险杠，可应用于轿车、客货车及其他各种运输车辆。
综上所述，本发明具有实际应用价值与广阔的市场开发前景。

Claims (9)

  1. 一种内设多重缓冲吸能屏障的汽车保险杠，包括内置杠胎、缓冲吸能内胆、加强支架、紧固件和外围板，所述的内设多重缓冲吸能屏障的汽车保险杠，安装在汽车前后端保险杠外围板内，通过紧固件与汽车底盘左右侧钢梁相连，其特征在于：所述内置杠胎内部设有缓冲吸能内胆，缓冲吸能内胆位于内置杠胎中部位置。
  2. 根据权利要求1所述的内设多重缓冲吸能屏障的汽车保险杠，其特征在于：根据需要内置杠胎中的缓冲吸能内胆也可以自中部位置向左右侧延伸或在内置杠胎左右两端设置。
  3. 根据权利要求1所述的内设多重缓冲吸能屏障的汽车保险杠，其特征在于：内置杠胎由上壳体、下壳体和数根牵拉杆组成。
  4. 根据权利要求3所述的内设多重缓冲吸能屏障的汽车保险杠，其特征在于：内置杠胎的长宽高度、上下壳体的间距，视不同车辆的需求与汽车前后端可利用的空间而定，牵拉杆采用自壳体中心点向两侧反向设置，斜度为40°±5°，牵拉杆为前、后两组，在杆数、杆径、杆距均等配置。
  5. 根据权利要求1或2所述的内设多重缓冲吸能屏障的汽车保险杠，其特征在于：缓冲吸能内胆用铝合金薄片材制成，结构为蜂窝结构；每一格呈正六边形，薄片厚度在0.03毫米-0.08毫米；孔径10毫米-18毫米，缓冲吸能内胆的高度 视内置杠胎的上下壳体间距而定。
  6. 根据权利要求1所述的内设多重缓冲吸能屏障的汽车保险杠，其特征在于：加强支架呈桥墩式，由两侧墩桩和墩托组成，墩桩上有安装螺孔连接墩托。
  7. 根据权利要求5所述的内设多重缓冲吸能屏障的汽车保险杠，其特征在于：所述的缓冲吸能内胆边缘硬度大于内格硬度，所述的六角内格的由上至下软硬间隔。
  8. 根据权利要求6所述的内设多重缓冲吸能屏障的汽车保险杠，其特征在于：所述的每根墩桩附有两个墩托，墩托呈弧形状，两个墩托对称地立于墩桩两侧，顶端立壳体上，内侧面与墩桩连体。
  9. 根据权利要求5或7所述的内设多重缓冲吸能屏障的汽车保险杠，其特征在于：在缓冲吸能内胆的蜂窝格内间隔插有软木塞；软木塞的高度、粗细与缓冲吸能内胆蜂窝格的孔径与高度相应。
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