CN219325798U - Automobile body head collision buffer structure and automobile body head system - Google Patents

Abstract

The utility model relates to an automobile body head collision buffer structure and an automobile body head system, comprising: the vehicle body comprises a connecting plate, at least two telescopic assemblies, a bumper, a plurality of spring limiting plates, a plurality of first springs, a plurality of diagonal rods, a first limiting plate and a vehicle body head. The automobile body head system can ensure that the distance between the first limiting plate and the bumper is reduced when the first limiting plate is impacted in the running process of an automobile. The inclined rod connected with the first limiting plate rotates relative to the first limiting plate, the first spring is pushed to shrink along the second direction, and the collision impact is primarily released and buffered. The telescopic component can be contracted, so that the collision impact is further subjected to preliminary pressure release buffering, the inclined rod is prevented from deforming and failing due to the fact that the inclined rod is subjected to large downward gravity, and meanwhile the collision impact can be sufficiently buffered through the contraction of the first spring and the telescopic component.

Description

Automobile body head collision buffer structure and automobile body head system

Technical Field

The utility model relates to the technical field of automobiles, in particular to an automobile body head collision buffer structure and an automobile body head system.

Background

When a traffic accident occurs in the running process of the automobile, the head of the automobile body has a high probability of collision. In order to protect the automobile structure, a bumper is often mounted at the head of the automobile body, and the front end of the automobile is protected by the bumper. However, since the bumper is often made of a rigid material, when the head of the automobile body to which the bumper is attached is impacted, the bumper cannot be pressure-release-buffered, resulting in impact damage to the bumper.

In the prior art (for example, patent document CN 102837655B), an automobile bumper with collision energy dissipation function is formed by connecting a plurality of diamond mechanisms in parallel. When collision occurs in any one diamond mechanism, collision energy can be transmitted to other diamond mechanisms and drive the other diamond mechanisms to move or deform, so that synchronous movement of all the diamond mechanisms is caused, all the dampers work synchronously, and energy generated by the collision is buffered and released.

However, the automobile bumper with the collision energy dissipation function is characterized in that the diamond-shaped mechanism is parallel to the ground, and the front protection plate is arranged on the outer side of the bumper, so that the diamond-shaped mechanism is subjected to downward gravity, the pressure applied to the joint of the diamond-shaped mechanism and the bumper is increased, and finally the problem that the diamond-shaped mechanism is damaged in bending and is insufficient in buffering is finally caused.

Disclosure of Invention

Based on the above, it is necessary to provide an automobile body head collision buffer structure and an automobile body head system, aiming at the problems that in the prior art, the diamond mechanism receives downward gravity, so that the pressure received by the joint of the diamond mechanism and a bumper is increased, and finally the diamond mechanism is damaged in bending and is insufficient in buffering.

An embodiment of the present application provides a car body head collision buffer structure for buffer car body head's collision, car body head collision buffer structure includes: the device comprises a connecting plate, at least two telescopic components, a bumper, a plurality of spring limiting plates, a plurality of first springs, a plurality of diagonal rods and a first limiting plate;

the connecting plate is connected with the head of the automobile body; one end of the telescopic component is connected with the connecting plate, the other end of the telescopic component is connected with the bumper, and the connecting plate, the telescopic component, the bumper and the first limiting plate are sequentially arranged in parallel along a first direction;

the spring limiting plate is connected with the connecting plate; one end of the inclined rod is rotatably connected with the first limiting plate; one end of the first spring is connected with one end of the inclined rod, which is away from the first limiting plate, the other end of the first spring is fixedly connected with the spring limiting plate, and the expansion direction of the first spring is along the second direction;

the inclined rods are sequentially arranged along the second direction, and the inclination directions of any two adjacent inclined rods are opposite;

the first direction is the advancing direction of the automobile, the second direction is the width direction of the automobile, and the third direction is the height direction of the automobile.

In one embodiment, the telescoping assembly comprises: two support plates and two telescopic sleeves;

the one end of flexible cover is the blind end, and the other end is the open end, the blind end with the bumper is connected, the open end movable sleeve is located the backup pad is kept away from the one end of connecting plate, just the backup pad with flexible cover sealing fit to form the cavity in flexible cover inside.

One end of the supporting plate is connected with the connecting plate, and the inclination directions of the two supporting plates are opposite.

In an embodiment, the telescopic assembly further comprises a second spring, one end of the second spring is connected with a corresponding telescopic sleeve, and the other end of the second spring is connected with the bumper.

In one embodiment, the telescoping assembly further comprises: one end of the first limiting block is connected with the bumper, one end of the second limiting block is connected with one of the telescopic sleeves, the surfaces of the first limiting block and the second limiting block opposite to each other are parallel and perpendicular to the telescopic direction of the second spring, and one sides, close to each other, of the first limiting block and the second limiting block are respectively connected with two ends of the second spring;

the telescopic direction of the second spring is inclined to the bumper.

In one embodiment, the telescoping assembly further comprises a connector;

the connecting piece comprises two connecting parts and buffer parts, one ends of the two connecting parts are connected with the bumper and are arranged at an angle with the bumper, the other ends of the two connecting parts are respectively connected with two ends of the buffer parts, and the buffer parts are arranged in parallel with the bumper;

one end of the telescopic sleeve, which is far away from the supporting plate, is connected with the buffer part.

In one embodiment, the automobile body head collision buffer structure further comprises a plurality of damping pushing plates, wherein the damping pushing plates are connected with the bumper in a sliding manner and can slide along the second direction;

one side of the first spring is connected with the damping pushing plate, the other side of the first spring is connected with the spring limiting plate, and one side of the damping pushing plate, which is away from the spring connected with the damping pushing plate, is connected with the inclined rod.

In one embodiment, the automotive body head impact-attenuating structure further includes a second limiting plate and a fastener;

a first through groove and a second through groove are formed in one side, far away from the connecting plate, of the bumper, the first through groove and the second through groove penetrate through in the third direction, and the distance between the groove walls of the first through groove is smaller than the distance between the groove walls of the second through groove so as to form a first step groove;

the second limiting plate is positioned in the first stepped groove, first protruding parts are respectively arranged on two sides of the second limiting plate along the second direction, the first protruding parts are positioned in the second through groove, and the second limiting plate is fixed on the bumper through the fastening piece;

the damping pushing plate is in sliding connection with the second limiting plate, and the spring limiting plate is connected with the second limiting plate.

In one embodiment, the automobile body head impact buffering structure further comprises a limiting sleeve, wherein the limiting sleeve is arranged on the second limiting plate;

a third through groove and a fourth through groove are formed in one side, far away from the bumper, of the limiting sleeve, the third through groove and the fourth through groove are communicated in the second direction, and the distance between the groove walls of the third through groove is smaller than the distance between the groove walls of the fourth through groove so as to form a second step groove;

the damping pushing plate slides in the second step groove along the second direction, and the spring limiting plate is connected with the limiting sleeve.

In an embodiment, the first limiting plate further includes a limiting protrusion and a penetrating member, the limiting protrusion is disposed on the first limiting plate, a protrusion through groove is formed on a side of the limiting protrusion, which is away from the first limiting plate, the protrusion through groove is penetrated along the second direction, and two protrusion through holes with coaxial lines are respectively formed on two side walls of the protrusion through groove;

one end of the inclined rod, which is close to the first limiting plate, is provided with an inclined rod through hole;

one end of each inclined rod, provided with an inclined rod through hole, between two adjacent spring limiting plates is positioned in the corresponding convex block through groove, and the penetrating piece penetrates through the convex block through hole and the inclined rod through hole.

An embodiment of the present application further provides an automotive body head system including an automotive body head and an automotive body head crash cushion structure.

The automobile body head collision buffer structure and the automobile body head system can ensure that the distance between the first limiting plate and the bumper is reduced when the first limiting plate is collided in the running process of an automobile. Because the spring limiting plate is connected with the connecting plate, a plurality of inclined rods are sequentially arranged along the second direction, and the inclination directions of any two adjacent inclined rods are opposite, so that the inclined rods rotationally connected with the first limiting plate rotate relative to the first limiting plate, and the first spring fixedly connected with the spring limiting plate at the other end is pushed to shrink along the second direction, and the initial pressure release and buffering are carried out on collision impact. One end of the telescopic component is connected with the connecting plate, the other end of the telescopic component is connected with the bumper, and the telescopic component can be contracted, so that the initial pressure release buffering is further carried out on collision impact, the inclined rod is prevented from deforming and failing due to the fact that the inclined rod is subjected to large downward gravity, and meanwhile the collision impact can be sufficiently buffered through the contraction of the first spring and the telescopic component.

Drawings

FIG. 1 is a schematic view of an automotive body head impact buffering structure according to an embodiment;

FIG. 2 is a cross-sectional view of FIG. 1 along a first direction and a second direction;

fig. 3 is an enlarged view at a in fig. 1;

fig. 4 is an enlarged view at B in fig. 2.

Reference numerals:

100-a car body head impact buffering structure;

110-connecting plates;

120-telescoping assembly; 121-a support plate; 1211-support plate through slots; 122-telescoping sleeve; 123-open end; 124-cavity; 125-a second spring; 126-a first limiting block; 127-a second limiting block; 128-connectors; 1281-a connection; 1282-a buffer;

130-a bumper; 131-first step groove; 132-a first through slot; 133-a second through slot;

140-spring defining plate; 141-damping push plate;

150-a first spring;

160-diagonal bars; 161-diagonal bar through holes;

170-a first limiting plate; 171-define the bump; 172-penetrating members; 173-bump through grooves; 174-bump vias;

180-a second limiting plate; 181-a first boss;

190-defining a sleeve; 191-second stepped slot; 192-third through slots; 193-fourth pass through slot.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and 4, an embodiment of the present utility model provides an automobile body head collision buffer structure 100 for buffering a collision of an automobile body head, where the automobile body head collision buffer structure 100 includes: a connecting plate 110, at least two telescoping assemblies 120, a bumper 130, a plurality of spring defining plates 140, a plurality of first springs 150, a plurality of diagonal rods 160, and a first defining plate 170. The connection plate 110, the telescopic assembly 120, the bumper 130, and the first limiting plate 170 are sequentially arranged in parallel in the first direction X. The first direction X, the second direction Y, and the third direction Z are described below for convenience of description. The first direction X is the forward or backward direction of the automobile, the second direction Y is the width direction of the automobile, and the third direction Z is the height direction of the automobile, wherein the front, rear, upper, lower, left, right and other azimuth words are all based on the normal running direction of the automobile.

The connecting plate 110 in the above-mentioned car body head collision buffer structure 100 is connected to the head of the car body, one end of the telescopic assembly 120 is connected to the connecting plate 110, and the other end is connected to the bumper 130. The spring limiting plate 140 is connected with the connecting plate 110, one end of the inclined rod 160 is rotatably connected with the first limiting plate 170, one end of the first spring 150 is connected with one end of the inclined rod 160, which is away from the first limiting plate 170, the other end of the first spring 150 is fixedly connected with the spring limiting plate 140, and the expansion and contraction direction of the first spring 150 is along the second direction Y.

When the first limiting plate 170 is impacted during the traveling of the automobile, the distance between the first limiting plate 170 and the bumper 130 is reduced. Since the spring defining plate 140 is connected to the connection plate 110 while the plurality of diagonal rods 160 are sequentially arranged in the second direction Y, the diagonal directions of any adjacent two diagonal rods 160 are opposite, so that the diagonal rods 160 rotatably connected to the first defining plate 170 rotate relative to the first defining plate 170 and push the first spring 150 fixedly connected to the spring defining plate 140 at the other end to contract in the second direction Y, thereby performing preliminary pressure relief and buffering of the collision impact. One end of the telescopic assembly 120 is connected with the connecting plate 110, and the other end is connected with the bumper 130, the telescopic assembly 120 can be contracted, so that the collision impact is further relieved and buffered, the deformation failure of the inclined rod 160 caused by the large downward gravity of the inclined rod 160 is prevented, and meanwhile, the collision impact can be sufficiently buffered through the contraction of the first spring 150 and the telescopic assembly 120.

Referring to fig. 1 and 2, in one embodiment, the telescopic assembly 120 includes: two support plates 121 and two telescopic sleeves 122. One end of the telescopic sleeve 122 is a closed end, the other end is an open end 123, the closed end is connected with the bumper 130, the open end 123 is movably sleeved at one end of the supporting plate 121 far away from the connecting plate 110, the supporting plate 121 is in sealing fit with the telescopic sleeve 122, a cavity 124 is formed in the telescopic sleeve 122, and certain gas is arranged in the cavity 124, so that when the telescopic sleeve 122 receives impact from the bumper 130 and contracts relative to the supporting plate 121, the compressed gas presses and buffers the impact.

One end of the support plate 121 is connected with the connection plate 110, and the inclination directions of the two support plates 121 are opposite, so that stability of the telescopic assembly 120 is increased during installation through the triangle stability principle, and collision impact can be buffered more fully.

Specifically, the support plate 121 is at 110 ° with respect to the connection plate 110, and the telescopic sleeve 122 is at 110 ° with respect to the connection plate 110.

In another embodiment, the interior of the cavity 124 may be liquid, so that the telescopic sleeve 122 compresses the liquid when it contracts relative to the support plate 121, and the collision impact is more sufficiently buffered.

Preferably, the distance between the two support plates 121 in the telescopic assembly 120 is greater than the distance between the two telescopic sleeves 122, so that the collision impact from the bumper 130 is relieved along the telescopic sleeves 122 and the support plates 121 to the connection plates 110 on both sides of the two support plates 121, and the collision impact is fully relieved by utilizing the triangle stability principle.

Referring to fig. 1, further, a support plate through groove 1211 is formed on a side of the support plate 121 near the connection plate 110, and the support plate through groove 1211 is penetrated along the third direction Z, so that the support plate 121 forms a Y-shaped structure, and the collision impact is fully relieved by utilizing the triangle stability principle.

Referring to fig. 1 and 2, in an embodiment, the telescopic assembly 120 further includes a second spring 125, one end of the second spring 125 is connected to a corresponding one of the telescopic sleeves 122, and the other end of the second spring 125 is connected to the bumper 130, so that when the telescopic sleeve 122 cannot be contracted relative to the support plate 121, the second spring 125 contracts, and the movement of the bumper 130 close to the connection plate 110 is further buffered, so as to fully release the collision impact.

Referring to fig. 1 and 2, in an embodiment, the telescopic assembly 120 further includes: the first stopper 126 and the second stopper 127, the one end of the first stopper 126 is connected with the bumper 130, the one end of the second stopper 127 is connected with one of the telescopic sleeves 122, the surfaces of the first stopper 126 and the second stopper 127 opposite to each other are parallel and perpendicular to the telescopic direction of the second spring 125, one sides of the first stopper 126 and the second stopper 127 close to each other are respectively connected with two ends of the second spring 125, and the telescopic direction of the second spring 125 is inclined to the bumper 130. The impact from the bumper 130 is transferred to the second spring 125 along the first limiting block 126 and transferred to the second limiting block 127, so that the second spring 125 contracts between two planes, which are parallel to each other and are close to the first limiting block 126 and the second limiting block 127, and therefore the situation that the second spring 125 is directly connected between the bumper 130 and the telescopic sleeve 122 in an inclined manner, and the contraction direction of the second spring 125 is inclined from the collision impact direction, so that the second spring 125 fails due to the fact that the second spring 125 cannot contract along the contraction direction of the second spring 125 is avoided.

Preferably, the distance between two adjacent first stoppers 126 is smaller than the distance between two adjacent second stoppers 127, so that the two second springs 125 form a triangle structure, and the second springs 125 can sufficiently cushion the collision impact from the bumper 130.

Referring to fig. 1 and 2, in one embodiment, the telescopic assembly 120 further includes a connector 128. The connecting member 128 includes two connecting portions 1281 and a buffer portion 1282, one ends of the two connecting portions 1281 are connected with the bumper 130 and are arranged at an angle to the bumper 130, the other ends of the two connecting portions 1281 are connected with two ends of the buffer portion 1282 respectively, the buffer portion 1282 is arranged parallel to the bumper 130, one end of the telescopic sleeve 122, which is far away from the support plate 121, is connected with the buffer portion 1282, so that the two connecting portions 1281 which are arranged at an angle to the bumper 130 and the buffer portion 1282 which is arranged parallel to the bumper 130 form a triangle structure, and the stability of the automobile body head collision buffer structure 100 during installation is increased.

Referring to fig. 1 and 4, in an embodiment, the head collision buffer structure 100 of the automobile body further includes a plurality of damping push plates 141, the damping push plates 141 are slidably connected with the bumper 130 and can slide along the second direction Y, one side of the first spring 150 is connected with the damping push plates 141, the other side of the first spring 150 is connected with the spring limiting plate 140, and one side of the damping push plates 141 facing away from the first spring 150 connected with the damping push plates 141 is connected with the diagonal rod 160, so that the first limiting plate 170 approaches the bumper 130, and when the diagonal rod 160 rotates relative to the first limiting plate 170, the damping push plates 141 are pushed to slide along the second direction Y and drive the first spring 150 to contract along the damping push plates 141 and the spring limiting plates 140, so that the first spring 150 can stably contract along the second direction Y, and the first spring 150 is prevented from being contracted and failing due to the first spring 150 being directly connected with the diagonal rod 160.

Referring to fig. 1 and 3, in one embodiment, the vehicle body head impact buffering structure 100 further includes a second limiting plate 180 and a fastener (not shown). The bumper 130 is far away from the side of the connecting plate 110 and is provided with a first through groove 132 and a second through groove 133, the first through groove 132 and the second through groove 133 are communicated along a third direction Z, the distance between the groove walls of the first through groove 132 is smaller than the distance between the groove walls of the second through groove 133, so as to form a first stepped groove 131, the second limiting plate 180 is positioned in the first stepped groove 131, two sides of the second limiting plate 180 along a second direction Y are respectively provided with a first protruding portion 181, and the first protruding portion 181 is positioned in the second through groove 133, so that the second limiting plate 180 cannot move along the first direction X. Since the second limiting plate 180 is fixed to the bumper 130 by the fastening members, the second limiting plate 180 can be removed from the bumper 130 by moving the second limiting plate 180 in the third direction Z by releasing the fastening members, thereby facilitating the disassembly and maintenance. The damping push plate 141 is slidably connected to the second limiting plate 180 and the spring limiting plate 140 is connected to the second limiting plate 180, so that the first spring 150 is still ensured to contract in the second direction Y on the second limiting plate.

Referring to fig. 1 and 3, in an embodiment, the head collision buffer structure 100 further includes a limiting sleeve 190, the limiting sleeve 190 is disposed on the second limiting plate 180, a third through slot 192 and a fourth through slot 193 are formed on a side of the limiting sleeve 190 away from the bumper 130, the third through slot 192 and the fourth through slot 193 are penetrated along the second direction Y, and a distance between walls of the third through slot 192 is smaller than a distance between walls of the fourth through slot 193 to form a second step slot 191. The damping push plate 141 slides in the second stepped groove 191 along the second direction Y, and the spring limiting plate 140 is connected with the limiting sleeve 190, so that limiting of the damping push plate 141 in the first direction X and the third direction Z is achieved, the damping push plate 141 can only slide relative to the limiting sleeve 190 in the second direction Y after being mounted, stable shrinkage of the first spring 150 in the second direction Y is guaranteed, and further the first spring 150 can buffer collision impact stably.

Preferably, the damping push plates 141 are provided with second protrusions (not shown) at both sides in the third direction Z, respectively, which are located in the fourth grooves 193, so that the damping push plates 141 can stably slide in the second direction Y.

Referring to fig. 1 and 4, in an embodiment, the first limiting plate 170 further includes a limiting protrusion 171 and a penetrating member 172, the limiting protrusion 171 is disposed on the first limiting plate 170, a protrusion through groove 173 is formed on a side of the limiting protrusion 171 facing away from the first limiting plate 170, the protrusion through groove 173 is penetrated along the second direction Y, two coaxial protrusion through holes 174 are respectively formed on two side walls of the protrusion through groove 173, a diagonal rod through hole 161 is disposed at one end of the diagonal rod 160 near the first limiting plate 170, one end of the diagonal rod 160 between two adjacent spring limiting plates 140, which is provided with the diagonal rod through hole 161, is disposed in the protrusion through groove 173, the penetrating member 172 is penetrated through the protrusion through hole 174 and the diagonal rod through hole 161, so that the two diagonal rods 160 between two adjacent spring limiting plates 140 can rotate along the same penetrating member 172 relative to the first limiting plate 170, the two diagonal rods 160 between the two adjacent spring limiting plates 140 and the bumper 130 form a triangle structure, the stability of installation is increased, and the buffer structure composed of the diagonal rods 160 and the first spring 150 can buffer impact from the first limiting plate 170.

In another embodiment, the penetrating member 172 has limiting protrusions at two ends, the limiting protrusion 171 is provided with a protrusion through hole 174, and the penetrating member 172 passes through the protrusion through hole 174 and the diagonal member through hole 161, so that the diagonal member 160 can rotate along the penetrating member 172.

In yet another embodiment, the diagonal bars 160 are in one-to-one correspondence with the defining projections 171.

Preferably, the inclined bars 160 of the first limiting plate 170 on both sides of the center line in the first direction X are in one-to-one correspondence with the limiting projections 171.

An embodiment of the present application also provides an automotive body head system including an automotive body head and an automotive body head crash cushion structure 100.

The above-described vehicle body head system can ensure that the distance between the first limiting plate 170 and the bumper 130 is reduced when the first limiting plate 170 is impacted during the traveling of the vehicle. Since the spring defining plate 140 is connected to the connection plate 110 while the plurality of diagonal rods 160 are sequentially arranged in the second direction Y, the diagonal directions of any adjacent two diagonal rods 160 are opposite, so that the diagonal rods 160 rotatably connected to the first defining plate 170 rotate relative to the first defining plate 170 and push the first spring 150 fixedly connected to the spring defining plate 140 at the other end to contract in the second direction Y, thereby performing preliminary pressure relief and buffering of the collision impact. One end of the telescopic assembly 120 is connected with the connecting plate 110, and the other end is connected with the bumper 130, and the telescopic assembly 120 can be contracted, so that the initial pressure release buffering is further carried out on the collision impact, the deformation failure of the diagonal rod 160 caused by the large downward gravity of the diagonal rod 160 is prevented, and meanwhile, the collision impact can be sufficiently buffered through the contraction of the first spring 150 and the telescopic assembly 120.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An automobile body head crash cushion structure for cushioning a crash of an automobile body head, the automobile body head crash cushion structure comprising: the device comprises a connecting plate, at least two telescopic components, a bumper, a plurality of spring limiting plates, a plurality of first springs, a plurality of diagonal rods and a first limiting plate;

the connecting plate is connected with the head of the automobile body; one end of the telescopic component is connected with the connecting plate, the other end of the telescopic component is connected with the bumper, and the connecting plate, the telescopic component, the bumper and the first limiting plate are sequentially arranged in parallel along a first direction;

the spring limiting plate is connected with the connecting plate; one end of the inclined rod is rotatably connected with the first limiting plate; one end of the first spring is connected with one end of the inclined rod, which is away from the first limiting plate, the other end of the first spring is fixedly connected with the spring limiting plate, and the expansion direction of the first spring is along the second direction;

the inclined rods are sequentially arranged along the second direction, and the inclination directions of any two adjacent inclined rods are opposite;

the first direction is the advancing direction of the automobile, the second direction is the width direction of the automobile, and the third direction is the height direction of the automobile.

2. The automotive body-head impact buffering structure of claim 1, wherein the telescopic assembly comprises: two support plates and two telescopic sleeves;

one end of the telescopic sleeve is a closed end, the other end of the telescopic sleeve is an open end, the closed end is connected with the bumper, the open end is movably sleeved at one end, far away from the connecting plate, of the supporting plate, the supporting plate is in sealing fit with the telescopic sleeve, and a cavity is formed in the telescopic sleeve;

one end of the supporting plate is connected with the connecting plate, and the inclination directions of the two supporting plates are opposite.

3. The vehicle body head impact buffering structure according to claim 2, wherein the telescopic assembly further comprises a second spring having one end connected to a corresponding one of the telescopic sleeves and the other end connected to the bumper.

4. The automotive body-head impact buffering structure of claim 3, wherein the telescopic assembly further comprises: one end of the first limiting block is connected with the bumper, one end of the second limiting block is connected with one of the telescopic sleeves, the surfaces of the first limiting block and the second limiting block opposite to each other are parallel and perpendicular to the telescopic direction of the second spring, and one sides, close to each other, of the first limiting block and the second limiting block are respectively connected with two ends of the second spring;

the telescopic direction of the second spring is inclined to the bumper.

5. The automotive body-head impact buffering structure of claim 3, wherein the telescopic assembly further comprises a connecting member;

the connecting piece comprises two connecting parts and buffer parts, one ends of the two connecting parts are connected with the bumper and are arranged at an angle with the bumper, the other ends of the two connecting parts are respectively connected with two ends of the buffer parts, and the buffer parts are arranged in parallel with the bumper;

one end of the telescopic sleeve, which is far away from the supporting plate, is connected with the buffer part.

6. The vehicle body head impact buffering structure of claim 1, further comprising a plurality of damping push plates slidably connected to the bumper and slidable in the second direction;

one side of the first spring is connected with the damping pushing plate, the other side of the first spring is connected with the spring limiting plate, and one side of the damping pushing plate, which is away from the spring connected with the damping pushing plate, is connected with the inclined rod.

7. The automotive body-head impact buffering structure of claim 6, further comprising a second limiting plate and a fastener;

a first through groove and a second through groove are formed in one side, far away from the connecting plate, of the bumper, the first through groove and the second through groove penetrate through in the third direction, and the distance between the groove walls of the first through groove is smaller than the distance between the groove walls of the second through groove so as to form a first step groove;

the second limiting plate is positioned in the first stepped groove, first protruding parts are respectively arranged on two sides of the second limiting plate along the second direction, the first protruding parts are positioned in the second through groove, and the second limiting plate is fixed on the bumper through the fastening piece;

the damping pushing plate is in sliding connection with the second limiting plate, and the spring limiting plate is connected with the second limiting plate.

8. The automotive body-head impact buffering structure according to claim 7, further comprising a restraining sheath provided to the second restraining plate;

a third through groove and a fourth through groove are formed in one side, far away from the bumper, of the limiting sleeve, the third through groove and the fourth through groove are communicated in the second direction, and the distance between the groove walls of the third through groove is smaller than the distance between the groove walls of the fourth through groove so as to form a second step groove;

the damping pushing plate slides in the second step groove along the second direction, and the spring limiting plate is connected with the limiting sleeve.

9. The automobile body head collision buffer structure according to claim 1, wherein the first limiting plate further comprises limiting lugs and penetrating members, the limiting lugs are arranged on the first limiting plate, lug through grooves are formed in one sides of the limiting lugs, which are away from the first limiting plate, the lug through grooves penetrate in the second direction, and two coaxial lug through holes are formed in two side walls of the lug through grooves respectively;

one end of the inclined rod, which is close to the first limiting plate, is provided with an inclined rod through hole;

one end of each inclined rod, provided with an inclined rod through hole, between two adjacent spring limiting plates is positioned in the corresponding convex block through groove, and the penetrating piece penetrates through the convex block through hole and the inclined rod through hole.

10. An automotive body-head system, characterized in that it comprises an automotive body head and an automotive body-head crash cushion structure according to any one of claims 1 to 9.

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