Front wall buffering structure, front wall outer plate assembly and vehicle
By designing a front closure buffer structure including a main body part, a connecting part and a guide part, the assembly difficulties in the prior art are solved, and stable clamping connection and efficient assembly are achieved.
Patent Information
- Application Number
- CN202420583664.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-25
AI Technical Summary
In the prior art, there are problems of high friction and high installation plug-in and pull-out during the assembly process between the front closure buffer block and the component to be assembled, resulting in difficulty in assembly.
A front cushion structure is designed, including a main body part, a connecting part and a guide part. The main body part is clamped and assembled with the component to be assembled, and a plurality of guide parts and a connecting part are provided on the guide part to facilitate the assembly worker to pull with his bare hands and realize the installation without auxiliary tools.
The stable clamping connection between the front closure buffer structure and the components to be assembled is realized, which simplifies the assembly process, reduces installation difficulty, and improves assembly efficiency.
Smart Images

Figure CN222591600U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle buffer structures, and in particular to a front wall buffer structure, a front wall outer panel assembly and a vehicle. Background Art
[0002] With the continuous updating and iteration of the exterior styling of commercial vehicles at home and abroad, the size of the block structure of the front outer panel assembly has gradually increased, which means that the weight of the front outer panel has increased accordingly. Therefore, the design of the buffer block that plays a buffering role during the opening and closing process of the front outer panel assembly is particularly important.
[0003] In the related art, the front bumper block is usually made of black rubber EPDM material, and the buffer force of this material can be adjusted by adjusting the Shore D hardness. During assembly, the front bumper block and the component to be assembled (such as the front bumper outer panel) are generally connected by interference fit.
[0004] However, the surface of the black rubber EPDM material is rough, and during the assembly process, there are problems such as large friction between the front bumper block and the component to be assembled, and high installation and insertion force, which makes assembly difficult. Utility Model Content
[0005] Based on this, it is necessary to provide a front bumper structure, a front bumper outer panel assembly and a vehicle to address the problems of high installation and insertion force and difficult assembly during the interference fit assembly between the front bumper block and the component to be assembled in the related technology.
[0006] In a first aspect, the present application provides a front wall buffer structure, which adopts the following technical solution:
[0007] A front bumper structure comprises a main body, a connecting part and a guide part, wherein the main body extends along a first direction, and the main body is used to contact the surface of a component to be assembled; the connecting part is connected to the main body along the first direction, and the connecting part can be passed through the component to be assembled; the guide part is connected to a side of the connecting part facing away from the main body along the first direction, and the guide part can pass through the component to be assembled along the first direction; wherein, in the second direction, the size of the connecting part is smaller than that of the main body, and the size of the connecting part is smaller than or equal to that of the guide part; the first direction is the assembly direction of the front bumper structure, and the second direction is perpendicular to the first direction.
[0008] By adopting the above technical solution, the main body is provided to realize the clamping assembly with the component to be assembled. At the same time, a guide part is provided at the end for the assembly worker to pull by hand, and the installation can be successfully completed without the use of auxiliary tools during the assembly process. The overall structural design is simple and the assembly is convenient.
[0009] In one embodiment, the main body includes a buffer cavity, and the buffer cavity penetrates the end surface of the guide portion facing away from the connecting portion along the first direction.
[0010] By adopting the above technical solution, a buffer cavity is provided on the main body, so that the main body can undergo a larger range of elastic deformation in the first direction when impacted, thereby improving the buffering effect. In addition, the provision of the buffer cavity can also effectively solve the impact of the inertial force on the front outer panel (component to be assembled) and the matching parts when the front outer panel assembly is closed, and can also buffer the shaking generated during driving, reduce the abnormal noise during the driving of the vehicle, and meet the use requirements of the vehicle.
[0011] In one embodiment, the main body further includes a draft chamfer, which is disposed on a side of the main body facing away from the connecting portion, and the draft chamfer is arranged along the periphery of the main body and smoothly connected to the inner wall of the buffer cavity.
[0012] By adopting the above technical solution, the draft chamfer is arranged along the periphery of the main body and can be smoothly connected to the inner wall of the buffer cavity, thereby facilitating the demoulding operation of the front wall buffer structure.
[0013] In one embodiment, the Shore D hardness of the front cushion structure is 60±5HD.
[0014] By adopting the above technical solution and reasonably setting the Shore D hardness of the front buffer structure, the front buffer structure can have a certain structural strength and structural support while also having good elastic deformation ability to meet the buffering requirements.
[0015] In one of the embodiments, the front buffer structure is made of elastic material, and the guide portion can be stretched by external force during the insertion process, thereby reducing the size in the second direction.
[0016] By adopting the above technical solution, during the assembly process, the front bumper structure can be elastically deformed under the action of external force. Generally, the external force refers to the tensile force applied by the assembler along the first direction. Under the action of the external force, the guide part of the front bumper structure is stretched, so that the size of the guide part in the second direction is reduced, so that the guide part can smoothly pass through the component to be assembled.
[0017] After the front cushioning structure is put into place, the assembler stops applying external force to the front cushioning structure, and the guide part returns to its original state, that is, the dimension in the second direction returns to its original state, and cooperates with the main body to achieve a snap-on connection with the structure to be assembled, thereby ensuring the stability of the snap-on connection.
[0018] In one of the embodiments, the front cushion structure is formed by an injection molding process.
[0019] By adopting the above technical solution and using the injection molding process to manufacture the front cushion structure, the front cushion structure is injection molded as a whole, thereby ensuring the integrity of the front cushion structure and helping to improve the overall structural strength of the front cushion structure.
[0020] In one embodiment, the guide portion and the connecting portion are provided in plurality, all the guide portions are connected to the connecting portions along the first direction, all the connecting portions are connected to the main body portion along the first direction, adjacent guide portions are arranged at intervals, and adjacent connecting portions are also arranged at intervals.
[0021] By adopting the above technical solution, the area of the part to be designed for buffering can be changed according to the need, such as the main body can be constructed into a structure with an elliptical or irregular cross-section, and the size of the main body for buffering can also be changed. A plurality of connecting parts and guide parts are connected to a main body, so that the front wall buffer structure has more connection points with the component to be assembled, thereby enhancing the installation stability.
[0022] In one embodiment, the guide portion includes a first end connected to the connecting portion, and a second end arranged opposite to the first end along the first direction, and the size of the guide portion in the second direction gradually decreases from the first end to the second end; in the second direction, the size of the guide portion at the first end is larger than the size of the connecting portion, and the size of the guide portion at the second end is smaller than or equal to the size of the connecting portion.
[0023] By adopting the above technical solution, the size of the guide portion in the second direction gradually decreases from the first end to the second end, so as to play a guiding role during the assembly process.
[0024] In a second aspect, the present application provides a front outer panel assembly, which adopts the following technical solution:
[0025] A front panel outer panel assembly includes a component to be assembled and the above-mentioned front panel buffer structure, wherein the component to be assembled includes a fixing hole, and along the first direction, the component to be assembled includes a first abutment surface and a second abutment surface arranged relatively to each other; the front panel buffer structure is penetrated through the fixing hole along the first direction, and the end surface of the guide portion and the main body portion close to the connecting portion can contact the first abutment surface and the second abutment surface respectively.
[0026] By adopting the above technical solution, the front panel buffer structure can be assembled on the component to be assembled along the first direction, thereby effectively solving the impact of the inertial force on the front panel outer panel (component to be assembled) and the matching parts when the front panel outer panel assembly is closed. At the same time, it can also buffer the shaking generated during driving and reduce abnormal noise during vehicle driving to meet the vehicle's use requirements.
[0027] In a third aspect, the present application provides a vehicle, which adopts the following technical solution:
[0028] A vehicle comprises the above-mentioned front wall buffer structure.
[0029] By adopting the above technical solution, the assembly efficiency of the front buffer structure is improved, thereby accelerating the production and assembly process of the vehicle.
[0030] In summary, the present application includes at least one of the following beneficial technical effects:
[0031] 1. The front wall buffer structure realizes the clamping assembly with the components to be assembled through the setting of the main body. At the same time, a guide part is set at the end for the assembly worker to pull by hand. During the assembly process, the installation can be completed smoothly without the use of auxiliary tools. The overall design of the structure is simple and easy to assemble;
[0032] 2. By reasonably setting the Shore D hardness of the front wall buffer structure, the front wall buffer structure has a certain structural strength and structural support, and can also have good elastic deformation ability to meet the actual buffering needs;
[0033] 3. The front panel buffer structure can be assembled on the component to be assembled along the first direction, thereby effectively solving the impact of the inertial force on the front panel outer panel (component to be assembled) and the matching parts when the front panel outer panel assembly is closed. At the same time, it can also buffer the shaking generated during driving and reduce abnormal noise during vehicle driving to meet the vehicle's use requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 It is a cross-sectional view of a front outer panel assembly in one embodiment of the present application.
[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the front buffer structure in one embodiment of the present application.
[0036] Figure 3 It is a cross-sectional view of the front buffer structure in one embodiment of the present application.
[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the front buffer structure in another embodiment of the present application.
[0038] Notes on the attached drawings:
[0039] 1. Front bumper structure; 11. Main body; 111. Buffer cavity; 112. Draft chamfer; 12. Connecting portion; 13. Guide portion; 131. First end; 132. Second end; 2. Component to be assembled; 21. Fixing hole; 22. First abutting surface; 23. Second abutting surface; 3. Matching part; F1. First direction; F2. Second direction. DETAILED DESCRIPTION
[0040] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0041] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0042] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0043] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0044] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0045] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method. Among them, the "first direction" may be the direction of the central axis of the front buffer structure, and the "second direction" may be the radial direction of the front buffer structure.
[0046] With the continuous updating and iteration of the exterior styling of commercial vehicles at home and abroad, the size of the block structure of the front outer panel assembly has gradually increased, which means that the weight of the front outer panel has increased accordingly. Therefore, the design of the buffer block that plays a buffering role during the opening and closing process of the front outer panel assembly is particularly important.
[0047] In the related art, the buffer block is generally made of black rubber EPDM material, which can change the buffer force by adjusting the Shore D hardness. However, the finished buffer block made of black rubber EPDM material has a rough surface and high friction, which correspondingly brings the problem of difficult assembly.
[0048] Generally, interference design is adopted in design, which is relatively easy for the installation of thin body panels. However, for non-metallic products, especially when the base material thickness of non-metallic products is more than 3mm, while meeting a certain interference amount, the installation and insertion force of the buffer block will be significantly increased, making the assembly process on site very difficult for workers, seriously affecting the production rhythm.
[0049] Based on the above problems, the present application designs a front panel buffer structure that can be pulled. The front panel buffer structure can meet the requirements of reliable function and low production cost. At the same time, it has the effect of convenient assembly, can effectively improve work efficiency, optimize production rhythm and increase production capacity.
[0050] See also Figure 1 , Figure 1 A cross-sectional view of a front outer panel assembly in an embodiment of the present application is shown. An embodiment of the present application provides a front buffer structure 1, comprising a main body 11, a connecting portion 12 and a guide portion 13 connected in sequence along a first direction F1. In the embodiment of the present application, the front buffer structure 1 can be specifically constructed by an injection molding process, and the main body 11, the connecting portion 12 and the guide portion 13 are injection molded into an integrated structure by injection molding, so that the front buffer structure 1 has a stronger integrity.
[0051] In addition, during the production process, the mold used to manufacture the front panel buffer structure 1 can be constructed into a one-mold multi-cavity structure, so that the same mold can produce multiple front panel buffer structures 1 at one time, thereby improving production efficiency and further ensuring the production loading rate.
[0052] Combination Figure 2 and Figure 3 As shown, Figure 2 It shows a three-dimensional structural diagram of the front buffer structure 1 in an embodiment of the present application, Figure 3 A cross-sectional view of a front wall buffer structure 1 in an embodiment of the present application is shown. Specifically, the guide portion 13 can pass through the component to be assembled 2 along the first direction F1. After the guide portion 13 passes through the component to be assembled 2, the connecting portion 12 is inserted into the component to be assembled 2 and is engaged with the component to be assembled 2. The main body 11 is used to abut against the surface of the component to be assembled 2, thereby forming a structure similar to a "barb" to achieve an engaged fixation with the component to be assembled 2.
[0053] In the first direction F1, the dimension L1 of the connecting portion 12 is smaller than the dimension L2 of the main portion 11, and the dimension L2 of the main portion 11 is smaller than the dimension L3 of the guide portion 13, so as to improve the grip comfort and clamping stability of the assembler. In the embodiment of the present application, L1 can be 3 mm, L2 can be 8 mm, and L3 can be 25 mm, so as to meet the assembly requirements of the component 2 to be assembled with a thickness of 3 mm.
[0054] Continue reading Figures 1 to 3 As shown, specifically, in the second direction F2, the size R2 of the connecting portion 12 is smaller than the size R4 of the main body 11, and the size R2 of the connecting portion 12 is smaller than or equal to the size of the guide portion 13, so as to facilitate the clamping between the front buffer structure 1 and the component to be assembled 2. The second direction F2 and the first direction F1 are perpendicular to each other.
[0055] In the embodiment of the present application, the main body 11, the connecting portion 12 and the guide portion 13 are all configured as cylindrical structures, so the first direction F1 is actually the axial direction of the front buffer structure 1, and the second direction F2 is actually the radial direction of the front buffer structure 1. In some other embodiments, the main body 11, the connecting portion 12 and the guide portion 13 can also be configured as square columnar structures, then the first direction F1 actually refers to the longitudinal direction of the front buffer structure 1, and the second direction F2 actually refers to the width direction of the front buffer structure 1.
[0056] In the embodiment of the present application, the front buffer structure 1 is made of a material with certain elasticity, and the elastic material can be a black rubber EPDM material. Specifically, the Shore D hardness of the black rubber EPDM material used to construct the front buffer structure 1 shown in the present application is (60±5) HD.
[0057] During the assembly process, the front bumper structure 1 can undergo elastic deformation under the action of external force. Normally, the external force refers to the tensile force along the first direction F1 applied by the assembler. Under the action of the external force, the guide portion 13 of the front bumper structure 1 is stretched, so that the size of the guide portion 13 in the second direction F2 is reduced, so that the guide portion 13 can smoothly pass through the component 2 to be assembled.
[0058] After the front cushioning structure 1 is put into place, the assembler stops applying external force to the front cushioning structure 1, and the guide part 13 returns to its original state, that is, the dimension in the second direction F2 returns to the original state, and cooperates with the main body 11 to achieve a snap-on connection with the structure to be assembled, thereby ensuring the snap-on stability.
[0059] See also Figure 4 As shown, Figure 4 A schematic diagram of the three-dimensional structure of the front cushioning structure 1 in another embodiment is shown. It can be understood that in some other embodiments, the size of the main body 11 for cushioning may also change depending on the change in the area of the part where the cushioning design is required, such as the main body 11 may be constructed as a structure with an elliptical or irregular cross-section.
[0060] According to the change in the size of the main body 11, in order to ensure the overall installation stability of the front buffer structure 1, the guide portion 13 and the connecting portion 12 are both provided in multiples. In the embodiment of the present application, for the convenience of explanation, the guide portion 13 and the connecting portion 12 are provided as a fixed component, and all the fixed components are integrally formed on the main body 11 along the first direction F1, and adjacent fixed components are spaced apart from each other, so that the front buffer structure 1 has more connection points with the component to be assembled 2 after being installed in place, thereby enhancing the installation stability of the front buffer structure 1.
[0061] Continue reading Figure 3As shown, the guide portion 13 includes a first end 131 connected to the connecting portion 12. Along the first direction F1, the guide portion 13 also includes a second end 132 arranged opposite to the first end 131. From the first end 131 to the second end 132, the size of the guide portion 13 in the second direction F2 gradually decreases, so as to play a guiding role during the assembly process.
[0062] Specifically, in the second direction F2, the dimension R1 of the guide portion 13 at the first end 131 is greater than the dimension R2 of the connecting portion 12, and the dimension R3 of the guide portion 13 at the second end 132 is less than or equal to the dimension R2 of the connecting portion 12. In the embodiment of the present application, R1 can be 8 mm, R2 can be 5.8 mm, R3 can be 5 mm, and R4 can be 15 mm. It is understandable that in some other embodiments, R1-R4 can also take other values as long as the above-mentioned dimensional relationship is satisfied.
[0063] Combination Figure 2 and Figure 3 As shown, in some embodiments, the main body 11 includes a buffer cavity 111, and the buffer cavity 111 penetrates the end surface of the guide portion 13 on the side facing away from the connecting portion 12 along the first direction F1, so that the main body 11 can undergo a larger range of elastic deformation in the first direction F1 when impacted, thereby improving the buffering effect.
[0064] In the embodiment of the present application, in the second direction F2, the inner diameter R5 of the buffer cavity 111 is 10 mm, so that the main body 11 is configured as a circular ring structure with a wall thickness of 2.5 mm, which can effectively buffer the impact of the front outer panel (the component to be assembled 2) and the matching part 3 under the influence of inertia when the front outer panel assembly is closed. At the same time, it can also buffer the shaking generated during driving and reduce the abnormal noise during the driving of the vehicle to meet the use requirements of the vehicle.
[0065] Furthermore, the main body 11 also includes a draft chamfer 112, which is arranged on the side of the main body 11 facing away from the connecting portion 12. The draft chamfer 112 is arranged along the periphery of the main body 11 and can be smoothly connected to the inner wall of the buffer cavity 111, so as to facilitate the demolding operation of the front buffer structure 1. In the embodiment of the present application, the draft angle of the draft chamfer 112 is set to 3°, and the measuring angle θ is set to 93°.
[0066] Combination Figures 1 to 4As shown, in some embodiments, the present application also provides a front panel assembly, including a component to be assembled 2 and a front panel buffer structure 1 as shown in any of the above embodiments, the front panel buffer structure 1 can be assembled on the component to be assembled 2 along a first direction F1, thereby effectively solving the impact of the inertial force on the front panel (component to be assembled 2) and the matching part 3 when the front panel assembly is closed, and at the same time can also buffer the shaking generated during driving, reduce the abnormal noise generated during the driving of the vehicle, so as to meet the use requirements of the vehicle.
[0067] Specifically, the component 2 to be assembled includes a fixing hole 21 arranged along the first direction F1, and along the first direction F1, the component 2 to be assembled includes a first abutting surface 22 and a second abutting surface 23 arranged opposite to each other. After assembly, the end surface of the guide portion 13 close to the connecting portion 12 can abut against the first abutting surface 22, and the end surface of the main body portion 11 close to the connecting portion 12 can abut against the second abutting surface 23, thereby achieving the clamping fixation between the front buffer structure 1 and the component 2 to be assembled, and improving the connection stability.
[0068] In the embodiment of the present application, the inner diameter R6 of the fixing hole 21 is set to 6 mm, and the dimension R2 of the connecting portion 12 in the second direction F2 is 5.8 mm, which ensures that the hole-pin matching clearance between the connecting portion 12 and the fixing hole 21 is set to 0.1 mm. If an interference fit is adopted, the dimension R2 of the connecting portion 12 in the second direction F2 is set to 8 mm (not shown), and the interference is designed to be 1 mm along the circumference of the connecting portion 12, so that the connecting portion 12 and the fixing hole 21 are closely matched to improve the firmness after assembly.
[0069] Based on the convenience of assembly, for non-metallic thick plate parts, the general opening thickness is 3mm. For rubber products, the interference fit will cause installation difficulties and inconvenient operation. The front buffer structure 1 adopting the above structural design, based on its unique guide part 13 design, constructs a "long tail" structure that is easy for assemblers to grasp. This design structure is set with a 25mm long tail structure, which is used for the assemblers to pass it through the fixing hole 21 and pull it by hand during installation, so that the connecting part 12 just fits into the fixing hole 21 without other tools. The operation is extremely convenient, effectively improving the production assembly rhythm.
[0070] In some other embodiments, the present application further provides a vehicle (not shown), which may specifically be a commercial vehicle, and the vehicle includes a front bumper structure 1 as shown in any of the above embodiments.
[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0072] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.
Claims
1. A front wall buffer structure, characterized in that: The front buffer structure comprises: A main body portion extending along a first direction, the main body portion being used to contact the surface of a component to be assembled; a connecting portion connected to the main body along the first direction, the connecting portion being capable of passing through the component to be assembled; and a guide portion connected to a side of the connecting portion facing away from the main body portion along the first direction, and the guide portion can pass through the component to be assembled along the first direction; Among them, in the second direction, the size of the connecting part is smaller than that of the main body part, and the size of the connecting part is smaller than or equal to that of the guide part; the first direction is the assembly direction of the front buffer structure, and the second direction is perpendicular to the first direction.
2. The front wall buffer structure according to claim 1, characterized in that: The main body portion includes a buffer cavity, and the buffer cavity penetrates the end surface of the guide portion on a side facing away from the connecting portion along the first direction.
3. The front wall buffer structure according to claim 2, characterized in that: The main body also includes a draft chamfer, which is arranged on a side of the main body facing away from the connecting portion. The draft chamfer is arranged along the periphery of the main body and smoothly connected to the inner wall of the buffer cavity.
4. The front wall buffer structure according to claim 1, characterized in that: The Shore D hardness of the front buffer structure is 60±5HD.
5. The front wall buffer structure according to claim 1, characterized in that: The front buffer structure is made of elastic material, and the guide portion can be stretched by external force during the insertion process, thereby reducing the size in the second direction.
6. The front wall buffer structure according to claim 1, characterized in that: The front buffer structure is formed by an injection molding process.
7. The front wall buffer structure according to claim 1, characterized in that: The guide parts and the connecting parts are both provided in plurality, all the guide parts are connected to the connecting parts along the first direction, all the connecting parts are connected to the main body along the first direction, adjacent guide parts are arranged at intervals, and adjacent connecting parts are also arranged at intervals.
8. The front cushioning structure according to claim 1 or 7, characterized in that: The guide portion includes a first end connected to the connecting portion, and a second end arranged opposite to the first end along the first direction, and the size of the guide portion in the second direction gradually decreases from the first end to the second end; in the second direction, the size of the guide portion at the first end is larger than the size of the connecting portion, and the size of the guide portion at the second end is smaller than or equal to the size of the connecting portion.
9. A front outer panel assembly, characterized in that: include: The component to be assembled comprises a fixing hole, and along the first direction, the component to be assembled comprises a first abutting surface and a second abutting surface arranged opposite to each other; and The front bumper structure as described in any one of claims 1 to 8 is penetrated through the fixing hole along the first direction, and the end faces of the guide portion and the main body portion close to the connecting portion can contact the first abutment surface and the second abutment surface respectively.
10. A vehicle, characterized in that: It comprises a front cushioning structure as described in any one of claims 1 to 8.