WO2017041389A1

WO2017041389A1 - Anti-impact keel structure for motor vehicle

Info

Publication number: WO2017041389A1
Application number: PCT/CN2015/098748
Authority: WO
Inventors: 汪冰洋
Original assignee: 汪冰洋
Priority date: 2015-09-08
Filing date: 2015-12-24
Publication date: 2017-03-16

Abstract

Disclosed is an anti-impact keel structure for a motor vehicle, which comprises anti-impact keel buffers (1) which are provided at the front and rear ends of a chassis of the motor vehicle, front and rear cross beams (3) movably connected to buffering shafts (11) of the anti-impact keel buffers (1), left and right bow beams (2) connected to two ends of the front and rear cross beams (3), and front and rear basic keels connected to two ends of the front and rear cross beams (3) via support columns. The anti-impact keel structure for the motor vehicle, by means of additionally providing an anti-impact keel and a buffering device outside the body of the motor vehicle, can effectively prevent an external force such as a rear-end collision, overturning, a collision, and a heavy load, thereby significantly reducing the loss in the event of a traffic accident.

Description

说明书发明名称：一种用于机动车辆的防撞龙骨结构技术领域 Specification Name of Invention: Anti-collision keel structure for motor vehicles

[0001] 本发明涉及一种机动车辆，特别涉及一种设置在机动车辆外部的用于机动车辆的防撞龙骨结构。 [0001] The present invention relates to a motor vehicle, and more particularly to a crash keel structure for a motor vehicle that is disposed outside of a motor vehicle.

背景技术 Background technique

[0002] 随着汽车工业的发展和私家车汽车保有量的不断增长，人们在体验驾车行驶舒适度和愉悦感的同吋，也为驾驶机动车辆的安全性提出了更高的要求。随着车辆的增多，特别是在路况不好以及天气状况不好的情形下，发生交通事故的概率也在不断增长，有些肇事案例又是非常惊人的。这些骇人听闻的交通事故大都是车辆碰撞、侧翻、追尾、重压所导致的。因此，机动车辆的防护措施是否到位，直接影响到了驾驶人员和乘车人员人身安全。目前，传统的做法一种是增强位于车头前部的保险杠的强度和抗碰撞参数，但这样的车辆对于追尾有效果，如果车辆发生重压、侧翻的话，就不会产生实质性的作用。另一种做法是相对于高档车而言的，就是在车厢内增设安全气囊，通过在碰撞发生吋缓冲强大作用力的方式来降低破坏性和冲击力。但这种方式一般只针对高端车型，并且造价高昂，不易实现，实用性不够。此外，对于像碰撞后变形而导致车毁人亡的高惨烈的交通事故而言，这种方式的效果不明显。 [0002] With the development of the automobile industry and the growing number of private car vehicles, people are experiencing the comfort and pleasure of driving, and also put forward higher requirements for the safety of driving motor vehicles. With the increase of vehicles, especially in the case of poor road conditions and bad weather conditions, the probability of traffic accidents is also growing, and some anecdotal cases are very amazing. These horrendous traffic accidents are mostly caused by vehicle collisions, rollovers, rear-end collisions, and heavy pressure. Therefore, whether the protective measures of motor vehicles are in place directly affects the safety of drivers and passengers. At present, the traditional practice is to enhance the strength and anti-collision parameters of the bumper located at the front of the front, but such a vehicle has an effect on rear-end collision. If the vehicle is heavily stressed or rolled over, it will not have a substantial effect. . Another approach is to add airbags to the car in comparison to high-end cars, to reduce the destructive and impact forces by cushioning the forces in the event of a collision. However, this method is generally only for high-end models, and the cost is high, it is difficult to achieve, and the practicality is not enough. In addition, the effect of this method is not obvious for a high-profile traffic accident that causes a car crash after a collision.

技术问题 technical problem

[0003] 有鉴于此，本发明提供一种机动车辆的防撞龙骨结构，其通过在机动车辆车体对外增设一套防撞龙骨和弹簧或液压缓冲装置，以直接的方式防止追尾、侧翻、碰撞、重压，降低事故的损失。 In view of the above, the present invention provides a crash keel structure for a motor vehicle, which prevents a rear-end collision and a rollover in a direct manner by adding a set of anti-collision keel and spring or hydraulic buffering device to the exterior of the motor vehicle body. , collision, heavy pressure, reduce the loss of accidents.

问题的解决方案 Problem solution

技术解决方案 Technical solution

[0004] 本发明通过以下技术手段解决上述问题： [0004] The present invention solves the above problems by the following technical means:

[0005] 一种用于机动车辆的防撞龙骨结构，包括设置于所述机动车辆的底盘前后端的防撞龙骨缓冲器、与所述防撞龙骨缓冲器的缓冲轴活动连接的前后横梁、与所述前后横梁两端连接的左右弓梁、以及分别通过支柱与前后横梁两端连接的前后基础龙骨。 [0005] A crash keel structure for a motor vehicle, comprising: a crash keel bumper disposed at a front and rear end of a chassis of the motor vehicle; a front and rear cross member movably coupled to a buffer shaft of the crash keel bumper, and Place The left and right bow beams connected at both ends of the front and rear beams, and the front and rear foundation keels respectively connected to the ends of the front and rear beams through the pillars.

[0006] 进一步地，所述防撞龙骨结构还包括交叉支柱，所述交叉支柱的下端分别与所述机动车辆的底盘的左右两侧连接，所述交叉支柱的上端分别与左右弓梁活动连接。 [0006] Further, the anti-collision keel structure further includes a cross strut, the lower ends of the cross strut are respectively connected to the left and right sides of the chassis of the motor vehicle, and the upper ends of the cross strut are respectively connected with the left and right bow beams. .

[0007] 进一步地，所述交叉支柱与所述左右弓梁连接的上端位置处设置有能够使左右弓梁前后滑动的滑轮结构。 Further, a pulley structure capable of sliding the left and right bow beams back and forth is provided at an upper end position of the cross pillar connected to the left and right bow beams.

[0008] 进一步地，所述防撞龙骨结构还包括设置于机动车辆前端或后端的可升降龙骨[0008] Further, the anti-collision keel structure further includes a liftable keel disposed at a front end or a rear end of the motor vehicle

，所述可升降龙骨由竖直设置的液压升降器、与所述液压升降器和所述左右弓梁均活动连接的防撞支柱、以及可升降龙骨框架组成。 The liftable keel is composed of a vertically arranged hydraulic lifter, an anti-collision strut movably connected to the hydraulic lifter and the left and right bow beams, and a liftable keel frame.

[0009] 进一步地，所述前后横梁的高度与机动车辆头部和尾部的高度一致，所述前后横梁的宽度与所述机动车辆的车体宽度相一致。 [0009] Further, the height of the front and rear beams coincides with the height of the head and the tail of the motor vehicle, and the width of the front and rear beams coincides with the width of the body of the motor vehicle.

[0010] 进一步地，所述左右弓梁与所述机动车辆的车体间隔幵一定距离。 [0010] Further, the left and right bow beams are spaced apart from the vehicle body of the motor vehicle by a certain distance.

[0011] 进一步地，所述防撞龙骨缓冲器是弹簧式缓冲器或液压式缓冲器。 [0011] Further, the anti-collision keel bumper is a spring type buffer or a hydraulic buffer.

[0012] 进一步地，在所述左右弓梁的位于车顶部的位置处（前视玻璃后边幵始）设置有三个或者三个以上链接横梁。 [0012] Further, three or more linked beams are disposed at a position of the left and right bow beams at the top of the vehicle (starting from the rear side of the front glass).

[0013] 进一步地，所述防撞龙骨缓冲器包括轴套、套设在所述轴套内的所述缓冲轴，以及套设在所述轴套与缓冲轴之间的多级弹簧。 [0013] Further, the anti-collision keel bumper includes a sleeve, the buffer shaft sleeved in the sleeve, and a multi-stage spring sleeved between the sleeve and the buffer shaft.

[0014] 进一步地，所述左右弓梁与防撞龙骨缓冲器可伸缩连接，且在所述左右弓梁和防撞龙骨缓冲器的中点处均设置有液压伸缩器。 [0014] Further, the left and right bow beams are telescopically connected with the anti-collision keel bumper, and a hydraulic retractor is disposed at a midpoint of the left and right bow beams and the anti-collision keel bumper.

发明的有益效果 Advantageous effects of the invention

有益效果 Beneficial effect

[0015] 本发明的一种机动车辆的防撞龙骨结构，针对传统机动车存在碰撞事故易使车体变形而导致车毁人亡的隐患，在机动车辆车体对外增设一套由横梁、左右弓梁、基础龙骨和缓冲装置组成的防撞龙骨结构，以直接的方式防止追尾、侧翻、碰撞、重压，相比传统的防护方式而言，可以有效降低事故的损失。 [0015] The anti-collision keel structure of the motor vehicle of the present invention is directed to a hidden danger caused by a vehicle crash in a conventional motor vehicle, which causes a vehicle body to be deformed, and a set of beams, left and right is added to the body of the motor vehicle. The anti-collision keel structure consisting of the bow beam, the foundation keel and the cushioning device prevents the rear-end collision, rollover, collision and heavy pressure in a direct manner, and can effectively reduce the accident loss compared with the traditional protection method.

对附图的简要说明 Brief description of the drawing

附图说明 [0016] 下面结合附图和实施例对本发明作进一步描述。 DRAWINGS [0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] 图 1为本发明的第一实施方式的结构示意图； 1 is a schematic structural view of a first embodiment of the present invention;

[0018] 图 2为本发明的第二实施方式的结构示意图； 2 is a schematic structural view of a second embodiment of the present invention;

[0019] 图 3为本发明的交叉支柱的结构示意图； 3 is a schematic structural view of a cross strut of the present invention;

[0020] 图 4是本发明的第二实施方式的前视图，其中，升降龙骨处于收合状态；以及 4 is a front view of a second embodiment of the present invention, wherein the lifting keel is in a collapsed state;

[0021] 图 5是本发明的第二实施方式的前视图，其中，升降龙骨处于升起状态； [0021] FIG. 5 is a front elevational view of a second embodiment of the present invention, wherein the elevator keel is in a raised state;

[0022] 图 6是本发明的缓冲器的剖视图； Figure 6 is a cross-sectional view of the bumper of the present invention;

[0023] 图 7是本发明一个实施例的机动车辆的仰视图； 7 is a bottom view of a motor vehicle according to an embodiment of the present invention;

[0024] 图 8是本发明另一个实施例的机动车辆的仰视图； 8 is a bottom view of a motor vehicle according to another embodiment of the present invention;

[0025] 图 9是本发明一个实施例的防撞龙骨结构示意图。 9 is a schematic view showing the structure of an anti-collision keel according to an embodiment of the present invention.

[0026] 附图标记说明如下： [0026] The reference numerals are as follows:

[0027] 防撞龙骨缓冲器 1，左右弓梁 2，前后横梁 3，交叉支柱 4，滑轮结构 5，升降横梁 6，垂直立柱 7，车底横梁 8，车顶横梁 9，缓冲轴 11，液压升降器 12，防撞支柱 21，轴套 13，弹簧 14，第一挡块 131，第二挡块 111。 Anti-collision keel bumper 1, left and right bow beam 2, front and rear cross member 3, cross strut 4, pulley structure 5, lifting beam 6, vertical column 7, underbody beam 8, roof cross member 9, buffer shaft 11, hydraulic Lifter 12, anti-collision strut 21, bushing 13, spring 14, first stop 131, second stop 111.

本发明的实施方式 Embodiments of the invention

[0028] 下面将结合附图对本发明进行详细说明，但应当理解的是，以下实施例仅用以说明本发明的技术方案而非限制。 The present invention will be described in detail below with reference to the accompanying drawings.

[0029] 目前，轿车撞击后最大的损害是变形、解体，以及变形、解体造成的驾乘人员伤亡。因此需要对汽车进行防撞效果改进，但目前没有有效的方法防撞。汽车防撞存在两大要数，一是缓冲碰撞力。二是加强车体外部结构抵抗变形。本发明从这两方面出发来改进汽车的防撞性能。具体参见以下结合附图对实施方式的详细说明。 [0029] At present, the biggest damage after a car crash is deformation, disintegration, and injury and death caused by deformation and disintegration. Therefore, it is necessary to improve the anti-collision effect of the car, but there is currently no effective method to prevent collision. There are two major factors in car collision avoidance. One is to cushion the collision force. The second is to strengthen the external structure of the car body to resist deformation. The present invention proceeds from these two aspects to improve the crashworthiness of the automobile. For details, refer to the following detailed description of embodiments with reference to the accompanying drawings.

[0030] 如图 1和图 3所示，图 1示出了本发明一种用于机动车辆的防撞龙骨结构的第一种实施方式的结构示意图，图 3示出了本发明的交叉支柱的结构示意图。所述防撞龙骨结构包括防撞龙骨缓冲器 1、前后横梁 3、左右弓梁 2和前后基础龙骨。本实施例中的所述防撞龙骨缓冲器 1设置于所述机动车辆的底盘前后端，所述防撞龙骨缓冲器 1通过容置于其内的缓冲轴 11分别与所述前后横梁 3两端铰接，所述前后基础龙骨通过支柱与前后横梁 3两端连接。在上述方案中，由防撞龙骨缓冲器 1、前后横梁 3、左右弓梁 2和前后基础龙骨围合构建而成的防撞龙骨结构设置在机动车辆外部，所述左右弓梁 2呈弓状，正中央靠近车顶的位置的弧度要比两侧靠近车头和车尾的位置的弧度要大一些，这样就与大部分机动车辆的外轮廓形状相一致，在所述左右弓梁 2之间设置有 3-5个链接横梁。优选的是，在所述左右弓梁的位于车顶部的位置处（前视玻璃后边幵始）设置有三个或者三个以上链接横梁。此外，所述左右弓梁 2与机动车辆的车体间隔幵一定的距离，优选的是，前后防撞横梁与车体两端距离 35 cm左右或者 35 cm以上的合理缓冲空间。以直接的方式防止追尾、侧翻、碰撞、重压，防撞龙骨的左右弓梁 2必须是以承受常见撞击和常见重压。相比传统的防护方式而言，可以有效降低事故的损失。其中，所述前后横梁 3的高度与机动车辆头部和尾部的高度一致，前后横梁 3的宽度与所述机动车辆的车体宽度相一致。 1 and FIG. 3, FIG. 1 is a schematic structural view showing a first embodiment of a crash keel structure for a motor vehicle according to the present invention, and FIG. 3 shows a cross pillar of the present invention. Schematic diagram of the structure. The anti-collision keel structure includes an anti-collision keel bumper 1, a front and rear cross member 3, a left and right bow beam 2, and front and rear foundation keels. The anti-collision keel bumper 1 in this embodiment is disposed at the front and rear ends of the chassis of the motor vehicle, and the anti-collision keel bumper 1 is respectively coupled to the front and rear cross members 3 through the buffer shaft 11 accommodated therein. End articulation, said The front and rear foundation keels are connected to both ends of the front and rear cross members 3 through the pillars. In the above solution, the anti-collision keel structure constructed by the anti-collision keel bumper 1, the front and rear cross members 3, the left and right bow beams 2, and the front and rear foundation keels is disposed outside the motor vehicle, and the left and right bow beams 2 are arcuate. The arc of the position near the center of the car is larger than the arc of the position near the front and the rear of the car, so that it conforms to the shape of the outer contour of most motor vehicles, between the left and right bows 2 Set up with 3-5 link beams. Preferably, three or more linked beams are provided at the position of the left and right bow beams at the top of the vehicle (starting from the rear of the front glass). In addition, the left and right bow beams 2 are spaced apart from the vehicle body of the motor vehicle by a certain distance. Preferably, the front and rear anti-collision beams are spaced from the two ends of the vehicle body by a distance of about 35 cm or more than 35 cm. In a direct way to prevent rear-end collision, rollover, collision, heavy pressure, the left and right bow beams 2 of the anti-collision keel must be able to withstand common impacts and common heavy pressures. Compared with the traditional protection method, it can effectively reduce the loss of accidents. Wherein, the height of the front and rear cross members 3 coincides with the height of the head and the tail of the motor vehicle, and the width of the front and rear cross members 3 coincides with the width of the body of the motor vehicle.

[0031] 如图 3所示，作为上述技术方案的进一步改进，为了使机动车辆能够承受来自于上方和侧部的外力，还可以再增加设置交叉支柱 4，所述交叉支柱 4呈交叉状结构，其左右下端部分别与所述机动车辆的底盘的左右两侧连接，其左右上端部分别与左右弓梁 2铰接。如图 3所示，所述左右弓梁 2通过车顶横梁 9连接，在交叉支柱 4的下端连接有车底横梁 8，在交叉支柱 4的上端的左右两侧连接有垂直立柱 7，具体地说，所述交叉支柱 4与所述左右弓梁 2连接的上端位置处设置有能够使左右弓梁 2前后滑动的滑轮结构 5，当发生交通事故吋，左右弓梁 2就会在外力的作用下前后滑动，有效分解和缓冲了巨大的撞击力。 [0031] As shown in FIG. 3, as a further improvement of the above technical solution, in order to enable the motor vehicle to withstand the external force from the upper side and the side portion, the cross strut 4 may be further added, and the cross strut 4 has a cross structure. The left and right lower ends are respectively connected to the left and right sides of the chassis of the motor vehicle, and the left and right upper ends are respectively hinged with the left and right bow beams 2. As shown in FIG. 3, the left and right bow beams 2 are connected by a roof cross member 9, and a vehicle bottom cross member 8 is connected to the lower end of the cross strut 4, and vertical columns 7 are connected to the left and right sides of the upper end of the cross strut 4, specifically It is said that the upper end position of the cross strut 4 connected to the left and right bow beams 2 is provided with a pulley structure 5 capable of sliding the left and right bow beams 2 back and forth. When a traffic accident occurs, the left and right bow beams 2 act as external forces. Sliding back and forth, effectively decomposing and buffering the huge impact force.

[0032] 图 2、图 4和图 5示出了本发明的第二种实施方式，该实施方式与前述第一种实施方式相比，不同之处在于，该实施方式在防撞龙骨结构的基础上加设有可升降龙骨，如图 2所示，可升降龙骨可以设置在机动车辆前端或后端，其由竖直设置的液压升降器 12、与液压升降器 12和左右弓梁 2均活动连接的防撞支柱 21、以及可升降龙骨框架组成。这样，在平吋，所述可升降龙骨处于收合状态，如图 4 所示。图 4是本发明的第二实施方式的前视图，其中升降龙骨处于收合状态，在图中可以清楚地看到，位于龙骨最上端的是升降横梁 6，所述升降横梁 6在此吋处于收拢闭合状态，停靠在前后横梁 3上，垂直立柱 7左右对称地设置在龙骨两侧。必要吋，例如在高速行驶和有大货车行驶路段行驶过程中，驾驶者可以通过位于驾驶室内的操作面板的操作，实现该可升降龙骨的升起，以防止发生追尾和碰撞事件，这种可升降龙骨的加入，又进一步降低了发生事故所造成的人身财产损失。如图 5所示，图 5是本发明的第二实施方式的前视图，其中升降龙骨处于升起状态，这吋升降横梁 6通过液压升降器 12支撑，处于升起状态。 2, FIG. 4 and FIG. 5 show a second embodiment of the present invention, which is different from the first embodiment described above, except that the embodiment is in the anti-collision keel structure. A liftable keel is added to the foundation. As shown in Fig. 2, the liftable keel can be disposed at the front end or the rear end of the motor vehicle. The vertically installed hydraulic lifter 12, the hydraulic lifter 12 and the left and right bow beams 2 are provided. The movable connection anti-collision strut 21 and the liftable keel frame are composed. Thus, in the flat state, the liftable keel is in a collapsed state, as shown in FIG. Figure 4 is a front elevational view of a second embodiment of the present invention, wherein the lifting keel is in a collapsed state, as can be clearly seen in the figure, at the uppermost end of the keel is a lifting beam 6, the lifting beam 6 is now gathered Closed state, docked on the front and rear beams 3, vertical columns 7 symmetrically placed on the keel side. If necessary, for example, during high-speed driving and driving on a large truck, the driver can realize the lifting of the liftable keel through the operation of the operation panel located in the cab to prevent rear-end collision and collision events. The addition of the lifting keel further reduces the loss of personal property caused by the accident. As shown in Fig. 5, Fig. 5 is a front view of a second embodiment of the present invention in which the lifting keel is in a raised state, and the lifting beam 6 is supported by the hydraulic lifter 12 in a raised state.

[0033] 值得指出的是，本发明的上述实施例中的防撞龙骨缓冲器 1既可以采用弹簧式缓冲器，又可以采用液压式缓冲器，具体根据车型、车况和路况而定。 It is worth noting that the crash keel bumper 1 of the above embodiment of the present invention can be either a spring type damper or a hydraulic damper depending on the vehicle type, the vehicle condition and the road condition.

[0034] 汽车防撞龙骨有关汽车安全性与汽车增加自重的数据对比分析 : 1、安全第一原则指导下，能够遏制汽车碰撞后变形甚至解体的车毁人亡事故，适当增加重量显然成为必要。 2、汽车防撞龙骨应用后，现有汽车外壳和底盘设计有减轻重量的必要。 [0034] Comparing and analyzing the data of automobile anti-collision keel related to automobile safety and increasing self-weight of automobile: 1. Under the guidance of safety first principle, it is possible to curb the car crash and even the disintegration after the collision of the car, and it is obviously necessary to increase the weight properly. . 2. After the application of the automobile anti-collision keel, the existing car casing and chassis design are necessary to reduce the weight.

[0035] 在本发明的一个实施例中，防撞龙骨缓冲器 1可以是单向缓冲。具体地，缓冲距离可以设定在 33 cm左右，必要吋，上述防撞龙骨缓冲器 1可采用三级弹簧或多级弹簧。在此以设置三级弹簧的防撞龙骨缓冲器 1来举例说明具体的缓冲过程，该三级弹簧由第一级弹簧、第二级弹簧和第三级弹簧组成，串联设置在所述防撞龙骨缓冲器 1的套管中。当迎面而来的冲击力或者从车体后方追尾而来的冲击力作用于机动车辆的防撞龙骨上吋，首先承受撞击力的是防撞横梁，其将力快速传递给离之最近的第一级弹簧，第一级弹簧受到外力压迫发生回缩，当第一级弹簧缓冲 11cm之后，第二级弹簧幵始加入缓冲，此吋撞击力传递至与第一级弹簧相邻的第二级弹簧。当碰撞力较大的情况下，第一级弹簧缓冲 22 cm之后，第二级弹簧缓冲 11 cm之后，第三级弹簧加入上述缓冲过程。上述过程即是三级弹簧串联式防撞龙骨缓冲器 1的整个缓冲动作过程，必要吋可以采用四轴和四轴以上多轴缓冲结构。 [0035] In one embodiment of the invention, the crash keel bumper 1 may be a one-way buffer. Specifically, the buffer distance can be set to about 33 cm. If necessary, the above-mentioned collision keel bumper 1 can be a three-stage spring or a multi-stage spring. Here, a specific buffering process is exemplified by the anti-collision keel bumper 1 provided with a three-stage spring, which is composed of a first-stage spring, a second-stage spring and a third-stage spring, which are arranged in series in the collision avoidance. The keel bumper 1 is in the sleeve. When the oncoming impact force or the impact force from the rear of the car body acts on the anti-collision keel of the motor vehicle, the first impact bearing force is the anti-collision beam, which transmits the force to the nearest one. The first-stage spring is retracted by the external force. When the first-stage spring is buffered by 11cm, the second-stage spring starts to be added to the buffer, and the impact force is transmitted to the second stage adjacent to the first-stage spring. spring. When the impact force is large, after the first stage spring is buffered by 22 cm and the second stage spring is buffered by 11 cm, the third stage spring is added to the above buffering process. The above process is the entire buffering process of the three-stage spring series anti-collision keel bumper 1. If necessary, four-axis and four-axis multi-axis buffer structures can be used.

[0036] 在本发明的另一个实施例中，防撞龙骨缓冲器 1也可以是双向缓冲。具体地，如图 6所示，防撞龙骨缓冲器 1包括轴套 13、套设在轴套 13内的缓冲轴 11，以及套设在轴套 13和缓冲轴 11之间的多级弹簧 14。另外，在轴套 13的内壁上设置有用于固定弹簧 14的第一挡块 131，而在缓冲轴 11的外壁焊接有第二挡块 111。在本实施例中，在缓冲轴 11的两端分别设置有在撞击吋可同吋做功的两级弹簧 14 。具体地，从靠近机动车辆的前端幵始，依次包括一级弹簧、二级弹簧、三级弹簧和四级弹簧，其中，一级弹簧的前端与缓冲轴 11固定连接，并在一级弹簧的前端设置有第二挡块 111，一级弹簧的后端与第一挡块 131固定连接；二级弹簧的前端与第一挡块 131固定连接，二级弹簧的尾端与缓冲轴 11固定连接，且在二级弹簧的尾端设置有第二挡块 111 ; 三级弹簧的前端与缓冲轴 11固定连接，并在三级弹簧的前端设置有第二挡块 111，三级弹簧的后端与第一挡块 131固定连接；四级弹簧的前端与第一挡块 131固定连接，四级弹簧的尾端与缓冲轴 11固定连接，且在四级弹簧的尾端设置有第二挡块 111。当机动车辆前端受到撞击吋，一级弹簧和三级弹簧压缩做功，二级弹簧和四级弹簧拉伸做功；当机动车辆尾端受到撞击吋，一级弹簧和三级弹簧拉伸做功，二级弹簧和四级弹簧压缩做功，从而实现缓冲。可以理解的是，在本发明的其它实施例中，弹簧 14的具体级数可以根据实际情况确定，且弹簧 14的长度也可以根据实际情况确定。 [0036] In another embodiment of the invention, the crash keel bumper 1 can also be a two-way buffer. Specifically, as shown in FIG. 6, the crash keel bumper 1 includes a sleeve 13, a buffer shaft 11 sleeved in the sleeve 13, and a multi-stage spring 14 sleeved between the sleeve 13 and the buffer shaft 11. . Further, a first stopper 131 for fixing the spring 14 is provided on the inner wall of the sleeve 13, and a second stopper 111 is welded to the outer wall of the buffer shaft 11. In this embodiment, two ends of the buffer shaft 11 are respectively provided with two-stage springs 14 capable of performing work at the same time. . Specifically, starting from the front end of the motor vehicle, the first stage spring, the second stage spring, the third stage spring and the fourth stage spring are sequentially arranged, wherein the front end of the first stage spring is fixedly connected with the buffer shaft 11 and is in the first stage spring The front end is provided with a second stopper 111, and the rear end of the primary spring is fixedly connected with the first stopper 131; the front end of the secondary spring is fixedly connected with the first stopper 131, and the tail end of the secondary spring is fixedly connected with the buffer shaft 11 a second stopper 111 is disposed at a tail end of the secondary spring; a front end of the tertiary spring is fixedly coupled to the buffer shaft 11, and a second stopper 111 is disposed at a front end of the tertiary spring, and a rear end of the tertiary spring The first block 131 is fixedly connected to the first block 131; the front end of the four-stage spring is fixedly connected to the first block 131, the tail end of the four-stage spring is fixedly connected to the buffer shaft 11, and the second block is disposed at the tail end of the fourth-stage spring. 111. When the front end of the motor vehicle is subjected to impact, the primary spring and the tertiary spring compress work, and the secondary spring and the fourth spring work to perform work; when the tail end of the motor vehicle is impacted, the primary spring and the tertiary spring are stretched to work, The stage spring and the four-stage spring compress work to achieve cushioning. It can be understood that in other embodiments of the present invention, the specific number of stages of the spring 14 can be determined according to actual conditions, and the length of the spring 14 can also be determined according to actual conditions.

[0037] 进一步地，如图 7所示，防撞龙骨缓冲器 1可以兼用机动车辆的车身主梁，即两个防撞龙骨缓冲器 1分别替换车身位于车辆内侧的两根主梁。可以理解的是，也可以设置四个防撞龙骨缓冲器 1，如图 8所示。当然，也可以是四个以上。 Further, as shown in FIG. 7, the anti-collision keel bumper 1 can also use the main body beam of the motor vehicle, that is, the two anti-collision keel bumpers 1 respectively replace the two main beams of the vehicle body on the inner side of the vehicle. It can be understood that four anti-collision keel bumpers 1 can also be provided as shown in FIG. Of course, it can be four or more.

[0038] 进一步地，如图 9所示，左右弓梁 2与防撞龙骨缓冲器 1可伸缩连接，且在左右弓梁 2和防撞龙骨缓冲器 1的中点处均设置有液压伸缩器 22，当机动车辆不工作或不在高速行驶吋，该液压伸缩器 22用于将左右弓梁 2和防撞龙骨缓冲器 1伸出轴套的部分缩回，以使本发明的防撞龙骨结构贴合机动车辆。另外，左右弓梁 2 与防撞龙骨缓冲器 1也可拆卸连接，当机动车辆放置在车库吋可以拆卸左右弓梁 2与防撞龙骨缓冲器 1，以节约使用空间。 [0038] Further, as shown in FIG. 9, the left and right bow beams 2 are telescopically connected to the crash keel bumper 1, and a hydraulic retractor is disposed at the midpoints of the left and right bow beams 2 and the crash keel bumper 1 22. When the motor vehicle is not working or is not at a high speed, the hydraulic retractor 22 is used to retract the left and right bow beams 2 and the portion of the anti-collision keel bumper 1 protruding from the sleeve to make the anti-collision keel structure of the present invention. Fit the motor vehicle. In addition, the left and right bow beams 2 and the crash keel bumper 1 are also detachably connected. When the motor vehicle is placed in the garage, the left and right bow beams 2 and the crash keel bumper 1 can be removed to save space.

[0039] 根据需要，本发明所述的用于机动车辆的防撞龙骨结构可以设计成可拆卸防撞龙骨结构，也可以根据需要设计成能够进行前后伸缩的防撞龙骨结构。 [0039] According to the need, the anti-collision keel structure for a motor vehicle according to the present invention can be designed as a detachable anti-collision keel structure, or can be designed as an anti-collision keel structure capable of front and rear expansion and contraction as needed.

[0040] 最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。 [0040] It is to be understood that the above embodiments are merely illustrative of the embodiments of the present invention, and are not intended to The technical solutions are modified or equivalent, without departing from the spirit and scope of the invention, and are intended to be included within the scope of the appended claims.

Claims

权利要求书 Claim

[权利要求 1] 一种用于机动车辆的防撞龙骨结构，其特征在于：包括设置于所述机动车辆的底盘前后端的防撞龙骨缓冲器（1) 、与所述防撞龙骨缓冲器（1) 的缓冲轴（11) 活动连接的前后横梁（3) 、与所述前后横梁 [Claim 1] A crash keel structure for a motor vehicle, comprising: an anti-collision keel bumper (1) disposed at a front and rear ends of a chassis of the motor vehicle, and the anti-collision keel bumper ( 1) The buffer shaft (11) is connected to the front and rear beams (3), and the front and rear beams

(3) 两端连接的左右弓梁（2) 、以及分别通过支柱与前后横梁（3 ) 两端连接的前后基础龙骨。 (3) The left and right bow beams (2) connected at both ends, and the front and rear foundation keels connected to the ends of the front and rear beams (3) respectively.

[权利要求 2] 根据权利要求 1所述的一种用于机动车辆的防撞龙骨结构，其特征在于：所述防撞龙骨结构还包括交叉支柱（4) ，所述交叉支柱（4) 的下端分别与所述机动车辆的底盘的左右两侧连接，所述交叉支柱（4 ) 的上端分别与左右弓梁（2) 活动连接。 [Claim 2] A crash keel structure for a motor vehicle according to claim 1, wherein: the crash keel structure further comprises a cross strut (4), the cross strut (4) The lower ends are respectively connected to the left and right sides of the chassis of the motor vehicle, and the upper ends of the cross pillars (4) are movably connected to the left and right bow beams (2), respectively.

[权利要求 3] 根据权利要求 2所述的一种用于机动车辆的防撞龙骨结构，其特征在于：所述交叉支柱（4) 与所述左右弓梁（2) 连接的上端位置处设置有能够使左右弓梁（2) 前后滑动的滑轮结构。 [Claim 3] A crash keel structure for a motor vehicle according to claim 2, characterized in that: the upper end position of the cross pillar (4) connected to the left and right bow beam (2) is set There is a pulley structure that can slide the left and right bow beams (2) back and forth.

[权利要求 4] 根据权利要求 1至 3中任一项所述的一种用于机动车辆的防撞龙骨结构，其特征在于：所述防撞龙骨结构还包括设置于机动车辆前端或后端的可升降龙骨，所述可升降龙骨由竖直设置的液压升降器（12) 、与所述液压升降器（12) 和所述左右弓梁（2) 均活动连接的防撞支柱[Claim 4] A crash keel structure for a motor vehicle according to any one of claims 1 to 3, wherein: the crash keel structure further comprises a front end or a rear end of the motor vehicle. a lifting keel, the hydraulic hoist (12) disposed vertically, and the anti-collision strut movably connected to the hydraulic hoist (12) and the left and right bow beams (2)

(21) 、以及可升降龙骨框架组成。 (21), and a lifting keel frame.

[权利要求 5] 根据权利要求 4所述的一种用于机动车辆的防撞龙骨结构，其特征在于：所述前后横梁（3) 的高度与机动车辆头部和尾部的高度一致，所述前后横梁（3) 的宽度与所述机动车辆的车体宽度相一致。 [Claim 5] A crash keel structure for a motor vehicle according to claim 4, wherein: the height of the front and rear cross members (3) coincides with the height of the head and tail of the motor vehicle, The width of the front and rear beams (3) coincides with the width of the body of the motor vehicle.

[权利要求 6] 根据权利要求 4所述的一种用于机动车辆的防撞龙骨结构，其特征在于：所述左右弓梁（2) 与所述机动车辆的车体间隔幵一定距离。 [Claim 6] A crash keel structure for a motor vehicle according to claim 4, wherein: the left and right bow beams (2) are spaced apart from the body of the motor vehicle by a certain distance.

[权利要求 7] 根据权利要求 4所述的一种用于机动车辆的防撞龙骨结构，其特征在于：所述防撞龙骨缓冲器（1) 是弹簧式防撞龙骨缓冲器或液压式防撞龙骨缓冲器。 [Claim 7] A crash keel structure for a motor vehicle according to claim 4, wherein: the crash keel bumper (1) is a spring type anti-collision keel bumper or hydraulic type Hit the keel bumper.

[权利要求 8] 根据权利要求 4所述的一种用于机动车辆的防撞龙骨结构，其特征在于：在所述左右弓梁（2) 的位于车顶部的位置处设置有三个或者三个以上链接横梁。 [Claim 8] A crash keel structure for a motor vehicle according to claim 4, characterized in that: three or three are provided at a position of the left and right bow beams (2) at the top of the vehicle More than one link beam.

[权利要求 9] 根据权利要求 1所述的一种用于机动车辆的防撞龙骨结构，其特征在于：所述防撞龙骨缓冲器（1) 包括轴套（13) 、套设在所述轴套（1 3) 内的所述缓冲轴（11) ，以及套设在所述轴套（13) 与缓冲轴（1 1) 之间的多级弹簧（14) 。 [Claim 9] A crash keel structure for a motor vehicle according to claim 1, wherein: the crash keel bumper (1) includes a sleeve (13), and is sleeved in the The buffer shaft (11) in the sleeve (13), and a multi-stage spring (14) sleeved between the sleeve (13) and the buffer shaft (1 1).

[权利要求 10] 根据权利要求 9所述的一种用于机动车辆的防撞龙骨结构，其特征在于：所述左右弓梁（2) 与防撞龙骨缓冲器（1) 可伸缩连接，且在所述左右弓梁（2) 和防撞龙骨缓冲器（1) 的中点处均设置有液压伸缩器（22) 。 [Claim 10] A crash keel structure for a motor vehicle according to claim 9, wherein: the left and right bow beams (2) are telescopically coupled to the crash keel bumper (1), and A hydraulic retractor (22) is disposed at a midpoint of the left and right bow beam (2) and the crash keel bumper (1).