Automobile bumper

Abstract

The utility model discloses an automobile bumper which comprises a first energy absorption box and an energy absorption connecting piece, the first energy absorption box is sleeved with a second energy absorption box, and when the bumper is collided, the second energy absorption box slides in a cavity of the first energy absorption box so that the energy absorption connecting piece can slide on the outer surface of the first energy absorption box in a friction mode. When the bumper continues to be collided, the second energy absorption box continues to slide, the energy absorption connecting piece is broken off and abuts against the beam plate, and when the bumper continues to be collided, the first energy absorption box and the second energy absorption box are extruded and deformed, and the distance between the bumper and the beam plate is shortened. The utility model solves the problem that the excessive impact force is transmitted into the vehicle because the impact force cannot be uniformly filtered during the collision due to the design limitation of the bumper and the unicity of the energy absorption means.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile bumpers, in particular to an automobile bumper with a multi-layer energy absorption function. Background Art

[0002] Car bumpers play a vital role in vehicle collisions, and are designed to reduce the damage caused by collisions to the vehicle and its occupants. Bumpers are usually made of external plastic or metal materials, and their structure is designed to absorb energy and reduce the direct impact of the impact force on the vehicle during a collision. When a collision occurs, the bumper first absorbs part of the impact force and then disperses it to other body parts or the vehicle chassis. The design of the bumper usually includes internal energy-absorbing structures, such as foam plastics or compressible materials, which can effectively absorb energy and reduce the damage to the vehicle and its occupants in a collision;

[0003] However, in the existing design, due to the limited installation space of the bumper and the single energy absorption method, the impact force cannot be filtered evenly and multiple times during a collision, causing excessive impact force to be transmitted to the interior of the car. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the problem that the impact force cannot be evenly filtered during a collision due to the design limitation of the bumper and the singleness of the energy absorption means, thereby causing excessive impact force to be transmitted to the interior of the vehicle, the utility model provides the following technical solution: an automobile bumper, comprising a bumper characterized in that: the bumper is connected to the anti-collision beam through an energy absorption component beam plate;

[0006] The energy absorbing assembly includes a first energy absorbing box and an energy absorbing connecting piece. The first energy absorbing box is provided with a second energy absorbing box, and the energy absorbing connecting piece is connected between the first energy absorbing box and the second energy absorbing box. When the bumper is hit, the second energy absorbing box slides in the chamber of the first energy absorbing box so that the energy absorbing connecting piece slides frictionally on the outer surface of the first energy absorbing box. The second energy absorbing box continues to slide, the energy absorbing connecting piece breaks, and conflicts with the beam plate. When the bumper continues to be hit, the first energy absorbing box and the second energy absorbing box are squeezed and deformed, and the distance between the bumper and the beam plate is shortened.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] As a preferred solution of the automobile bumper of the utility model, the second energy absorbing box is completely sleeved in the internal cavity of the first energy absorbing box.

[0009] As a preferred solution of the automobile bumper described in the utility model, wherein: a waist-shaped hole is opened on the first energy absorbing box, and a round hole is opened on the second energy absorbing box. The round hole and the waist-shaped hole are matched to set an energy absorbing connecting piece, and a nut is set on the energy absorbing connecting piece. After the nut is tightened, it is squeezed by friction with the outer surface of the first energy absorbing box.

[0010] As a preferred solution of the automobile bumper of the utility model, the waist-shaped holes are arranged at equal intervals on the first energy absorption box, and the round holes are arranged at equal intervals on the second energy absorption box.

[0011] As a preferred solution of the automobile bumper of the utility model, the energy absorbing connecting parts all correspond to the round holes and the waist-shaped holes one by one.

[0012] As a preferred solution of the automobile bumper of the utility model, wherein: a tooth-shaped energy absorption groove is opened on the first energy absorption box.

[0013] As a preferred solution of the automobile bumper of the utility model, the second energy absorption box is provided with a strip-shaped energy absorption groove.

[0014] The beneficial effects of the utility model are as follows: in order to enhance the energy absorption effect of the bumper, the first energy absorption box and the second energy absorption box are set in a sleeve manner, the second energy absorption box is fixed on the first energy absorption box by a connecting piece, and a breakable material is used to resist impact force. When the bumper is impacted, the connecting piece allows the second energy absorption box to slide in the first energy absorption box and remain intact through friction, and excessive impact force will cause the connecting piece to break, further enhancing the energy absorption effect. When the impact force is further increased, the second energy absorption box is completely stored in the first energy absorption box, and the two are mutually deformed and squeezed. During the whole process, especially when subjected to severe impact, the various energy absorption forms of the first energy absorption box and the second energy absorption box can offset the reaction force of the impact force on the vehicle, significantly enhancing the energy absorption effect.

[0015] Moreover, the energy absorption box has a simple structure, does not take up space, and can be applied to bumpers of various models. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1It is a stereogram of the whole embodiment.

[0018] Figure 2 For this embodiment Figure 1 Rear view of.

[0019] Figure 3 It is a three-dimensional diagram of the energy absorbing component of this embodiment.

[0020] Figure 4 For this embodiment Figure 3 A partial schematic diagram of .

[0021] Figure 5 This is an assembly diagram of the energy absorbing component of this embodiment.

[0022] In the figure; main body 100, beam plate 101;

[0023] Energy absorbing assembly 200, first energy absorbing box 201, chamber 201a, waist-shaped hole 201b, tooth-shaped energy absorbing groove 201c;

[0024] The second energy absorption box 202, the circular hole 202a, and the strip-shaped energy absorption groove 202b;

[0025] Energy absorbing connector 203, nut 203a. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example

[0030] Reference Figures 1 to 5 , is an embodiment of the utility model, which provides an automobile bumper, including a main body 100, the main body 100 is connected to the anti-collision beam through an energy absorption component 200 beam plate 101;

[0031] The energy absorbing assembly 200 includes a first energy absorbing box 201 and an energy absorbing connecting piece 203. The first energy absorbing box 201 and the energy absorbing connecting piece 203 are provided with a second energy absorbing box 202, and the energy absorbing connecting piece 203 is connected between the first energy absorbing box 201 and the second energy absorbing box 202. When the main body 100 is hit, the second energy absorbing box 202 slides in the chamber 201a of the first energy absorbing box 201, so that the energy absorbing connecting piece 203 slides frictionally on the outer surface of the first energy absorbing box 201. The second energy absorbing box 202 continues to slide, and the energy absorbing connecting piece 203 breaks and conflicts with the beam plate 101. When the main body 100 continues to be hit, the first energy absorbing box 201 and the second energy absorbing box 202 are squeezed and deformed, and the distance between the main body 100 and the beam plate 101 is shortened.

[0032] The function of the automobile bumper is to absorb and disperse the collision energy in the event of a minor collision, and reduce the damage caused by the collision to the vehicle and passengers. The bumper is generally installed at the front and rear of the vehicle. The anti-collision beam is usually installed at the front and rear of the vehicle to enhance the structural strength of the vehicle, reduce the degree of damage to the vehicle in the event of a collision, and protect the safety of the vehicle passengers. The A-pillar refers to the pillars on both sides of the front windshield of the vehicle, connecting the roof and bottom structure of the vehicle, and plays a role in supporting and stabilizing the vehicle. The A-pillar also bears the role of partially dispersing and absorbing the collision energy, which helps to protect the safety of the vehicle passengers. In vehicle design, the bumper, anti-collision beam and A-pillar are usually coordinated with each other to jointly ensure the safety performance of the vehicle in the event of a collision. In order to enhance the energy absorption effect of the main body 100, the first energy absorption box 201 and the second energy absorption box 202 are set in a sleeve manner. During the sleeve process, the connecting member 203 fixes the second energy absorption box 202 on the first energy absorption box 201, and the connecting member 203 uses a breakable material to cope with a certain impact force. When the main body 100 is impacted, the connector 203 uses friction resistance to make the second energy absorption box 202 slide a short distance inside the first energy absorption box 201 and remain intact. If the impact force is too large, the connector 203 will break, further enhancing the energy absorption effect. When the impact force increases further, the second energy absorption box 202 is completely received inside the first energy absorption box 201, and the two interact with each other during the deformation and extrusion process. Throughout the process, especially when subjected to severe impact, the reaction force of the impact force on the vehicle itself is offset by the various energy absorption forms of the first energy absorption box 201 and the second energy absorption box 202, significantly enhancing the energy absorption effect. Due to its simple structure and no space occupation, it is suitable for bumpers of various models.

[0033] Specifically, the second energy absorbing box 202 is completely set in the internal cavity of the first energy absorbing box 201, so that the main body 100 can be more stable and the whole body can be more stable;

[0034] Specifically, a waist-shaped hole 201b is provided on the first energy absorbing box 201, and a round hole 202a is provided on the second energy absorbing box 202. The round hole 202a and the waist-shaped hole 201b are matched to set an energy absorbing connector 203. A nut 203a is set on the energy absorbing connector 203. After the nut 203a is tightened, it is squeezed by friction with the outer surface of the first energy absorbing box 201. The waist-shaped hole 201b and the round hole 202a have the characteristic of misalignment during installation. When impacted, the maximum friction energy absorption distance of the second energy absorbing box 202 while maintaining a complete structure depends on the length of the waist-shaped hole 201b. In theory, a longer waist-shaped hole 201b has a better energy absorption effect.

[0035] The waist-shaped holes 201b are evenly spaced on the first energy absorbing box 201, and the round holes 202a are evenly spaced on the second energy absorbing box 202. The energy absorbing connectors 203 correspond to the round holes 202a and the waist-shaped holes 201b one by one. The more waist-shaped holes 201b there are, the greater the friction force provided by the energy absorbing connectors 203, and the better the energy absorbing effect.

[0036] In order to enable the first energy absorption box 201 and the second energy absorption box 202 to be squeezed and deformed during the energy absorption process, specifically, a tooth-shaped energy absorption groove 201c is opened on the first energy absorption box 201, and a strip-shaped energy absorption groove 202b is opened on the second energy absorption box 202. In this way, the two energy absorption boxes can be squeezed more instead of being bent, and extrusion obviously has a better energy absorption effect.

[0037] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0039] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A car bumper, comprising a main body (100) characterized in that: The main body (100) is connected to the anti-collision beam through the energy absorption component (200) beam plate (101); The energy absorbing assembly (200) comprises a first energy absorbing box (201) and an energy absorbing connecting piece (203); the first energy absorbing box (201) is sleeved with a second energy absorbing box (202), and the energy absorbing connecting piece (203) is connected between the first energy absorbing box (201) and the second energy absorbing box (202); when the main body (100) is subjected to a collision, the second energy absorbing box (202) slides in the chamber (201a) of the first energy absorbing box (201) so that the energy absorbing connecting piece (203) slides frictionally on the outer surface of the first energy absorbing box (201); the second energy absorbing box (202) continues to slide so that the energy absorbing connecting piece (203) breaks and contacts the beam plate (101); when the main body (100) continues to be subjected to a collision, the first energy absorbing box (201) and the second energy absorbing box (202) are squeezed and deformed, and the distance between the main body (100) and the beam plate (101) is completely shortened.

2. The automobile bumper according to claim 1, characterized in that: The second energy absorbing box (202) is completely sleeved in the internal cavity of the first energy absorbing box (201).

3. The automobile bumper according to claim 1, characterized in that: The first energy absorbing box (201) is provided with a waist-shaped hole (201b), and the second energy absorbing box (202) is provided with a round hole (202a). The round hole (202a) and the waist-shaped hole (201b) are matched to be sleeved with an energy absorbing connecting piece (203). A nut (203a) is sleeved on the energy absorbing connecting piece (203). When the nut (203a) is tightened, it is squeezed by friction with the outer surface of the first energy absorbing box (201).

4. The automobile bumper according to claim 3, characterized in that: The waist-shaped holes (201b) are arranged at equal intervals on the first energy absorption box (201), and the round holes (202a) are arranged at equal intervals on the second energy absorption box (202).

5. The automobile bumper according to any one of claims 3 and 4, characterized in that: The energy absorbing connecting pieces (203) correspond one-to-one to the round holes (202a) and the waist-shaped holes (201b).

6. The automobile bumper according to any one of claims 1, 2, 3 and 4, characterized in that: The first energy absorption box (201) is provided with a tooth-shaped energy absorption groove (201c).

7. The automobile bumper according to any one of claims 1, 2, 3 and 4, characterized in that: The second energy absorption box (202) is provided with a strip-shaped energy absorption groove (202b).

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