Engine hood and vehicle

Abstract

The utility model discloses an engine hood and a vehicle, the engine hood comprises a first hood, a second hood and a plurality of buffer pieces, the second hood and the first hood are arranged at intervals along the thickness direction of the first hood, a plurality of through holes are formed in the second hood, a groove is formed in the inner wall surface of each through hole, and the buffer pieces are arranged in the through holes. The groove spirally extends in the circumferential direction of the through hole; the buffering pieces are arranged between the first hood and the second hood, matching protrusions are arranged on the peripheral face of one end of each buffering piece, the matching protrusions spirally extend in the circumferential direction of the buffering pieces, and the matching protrusions of the multiple buffering pieces are arranged in the grooves of the multiple through holes in a matched mode respectively. According to the engine hood, the matching protrusion at the lower end of the buffer piece is matched with the groove of the through hole, the use stability of the buffer piece is improved, the buffer piece is convenient to assemble and separate, and the assembly efficiency of the engine hood is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an engine hood and a vehicle. Background Art

[0002] According to the data statistics of road traffic accidents, pedestrian collision accidents account for about 80%. Among them, the head of a pedestrian is the body part with the highest fatality rate when a pedestrian collides with a vehicle. Therefore, the protection of the pedestrian's head has received wide attention. When a pedestrian collides with a vehicle, the part of the pedestrian's head that comes into contact the most is the engine hood of the vehicle.

[0003] In the related art, a buffer is provided between the inner plate and the outer plate of the engine hood. The buffer absorbs energy to reduce the injury value of the pedestrian's head. However, one end of the buffer is bonded to the inner plate, which is complex in operation, reduces the assembly rate of the buffer and the inner plate, and thus reduces the assembly efficiency of the engine hood. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, one object of the utility model is to provide an engine hood. The matching protrusion at the lower end of the buffer is matched with the groove of the through hole, which improves the use stability of the buffer and is also convenient for the assembly and separation of the buffer, thus improving the assembly efficiency of the engine hood.

[0005] Another object of the utility model is to provide a vehicle using the above engine hood.

[0006] The engine hood according to the first aspect embodiment of the utility model includes: a first hood; a second hood, the second hood and the first hood are arranged at intervals along the thickness direction of the first hood, a plurality of through holes are formed in the second hood, a groove is formed on the inner wall surface of each through hole, and the groove extends spirally along the circumferential direction of the through hole; a plurality of buffers, the buffers are arranged between the first hood and the second hood, a matching protrusion is arranged on the outer peripheral surface of one end of the buffer, the matching protrusion extends spirally along the circumferential direction of the buffer, and the matching protrusions of the plurality of buffers are respectively matched in the grooves of the plurality of through holes.

[0007] According to the engine hood of the present utility model, when the head of a human body presses down on the engine hood, the buffer member is squeezed and deformed, increasing the downward deformation amount of the first hood and increasing the displacement amount during the head collision of a pedestrian, thereby further reducing the head collision injury value of the pedestrian. In addition, the inner wall surface of the groove is in threaded cooperation with the outer peripheral surface of the mating protrusion, strengthening the connection stability between the buffer member and the second hood, preventing the buffer member from shifting after being squeezed, thereby improving the use stability of the buffer member and also improving the buffering effect. Moreover, it facilitates the separation and assembly of the buffer member and the second hood, improves the assembly efficiency of the engine hood, and also facilitates the replacement of the buffer member, thereby extending the service life of the engine hood.

[0008] According to some embodiments of the present utility model, the second hood includes: a body, on which a plurality of openings are formed; a plurality of bosses, which are provided on a side of the body away from the first hood, and the plurality of bosses are respectively opposite to the plurality of openings, and through holes are formed on the bosses, and the through holes and the openings jointly define the through holes.

[0009] According to some embodiments of the present utility model, the buffer member includes: a mating portion, on the outer peripheral surface of which the mating protrusion is provided; a buffer portion, one end of the buffer portion is connected to one end of the mating portion facing the first hood, and the other end surface of the buffer portion is connected to a side surface of the first hood facing the second hood, and the buffer portion is telescopic along the thickness direction of the first hood.

[0010] According to some embodiments of the present utility model, the buffer portion includes a plurality of buffer groups connected to each other, and the plurality of buffer groups are arranged along the thickness direction of the first hood. Each buffer group includes: a first buffer section, on which a first open end is formed; a second buffer section, on which a second open end is formed, and the second open end is opposite to the first open end, and the outer peripheral edge of the second buffer section is connected to the outer peripheral edge of the first buffer section, and a telescopic space is jointly defined between the second buffer section and the first buffer section, and the inner peripheral edge of the second buffer section and the inner peripheral edge of the first buffer section can approach and move away from each other.

[0011] According to some embodiments of the present utility model, the outer peripheral cross-sectional area of the mating portion is smaller than the outer peripheral cross-sectional area of the buffer portion.

[0012] According to some embodiments of the present utility model, a plurality of transmission elements are provided on the outer peripheral side of each of the buffer members. The plurality of transmission elements are arranged at intervals along the circumferential direction of the buffer member. One ends of the plurality of transmission elements are respectively connected to the buffer portion, and the other ends of the plurality of transmission elements are respectively in contact with one side surface of the first engine cover facing the second engine cover; during the process of compression of the buffer portion, the other ends of the plurality of transmission elements move in a direction away from the central axis of the buffer portion.

[0013] According to some embodiments of the present utility model, the other end of the transmission element extends obliquely in a direction from one end of the transmission element toward the other end and in a direction away from the central axis of the buffer member.

[0014] According to some embodiments of the present utility model, the second engine cover includes: a first guard plate, and the through hole is formed on the first guard plate; a second guard plate, the second guard plate is arranged on the outer peripheral side of the first guard plate, one side of the second guard plate is connected to the outer peripheral edge of the first guard plate, the other side of the second guard plate extends in a direction away from the center of the first guard plate along the thickness direction of the first guard plate, and a plurality of holes are formed on the second guard plate. The plurality of holes are arranged at intervals along the circumferential direction of the first guard plate.

[0015] According to some embodiments of the present utility model, the cross-sectional shape of the hole is a polygon.

[0016] A vehicle according to an embodiment of the second aspect of the present utility model includes an engine cover according to the above-mentioned first aspect embodiment of the present utility model.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of an engine cover according to an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 an enlarged view of part A circled in ;

[0021] Figure 3 is a schematic diagram of the engine cover from another angle according to an embodiment of the present utility model;

[0022] Figure 4 is Figure 3 an enlarged view of part B circled in ;

[0023] Figure 5 It is a schematic diagram of a buffer member of an engine hood according to an embodiment of the present invention;

[0024] Figure 6 It is a schematic diagram of a buffer group of a buffer member of an engine hood according to an embodiment of the present invention;

[0025] Figure 7 It is an assembly schematic diagram of a buffer member of an engine hood and a transmission element according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] 100, engine hood;

[0028] 1, second hood; 11, through hole; 111, groove;

[0029] 12, body; 121, opening; 13, boss; 131, perforation;

[0030] 14, first guard plate; 15, second guard plate; 151, hole;

[0031] 2, buffer member; 21, fitting portion; 211, fitting protrusion; 22, buffer portion;

[0032] 221, buffer group; 2211, first buffer section; 2211a, first open end;

[0033] 2212, second buffer section; 2212a, second open end; 223, telescopic space;

[0034] 3, transmission element. Detailed implementation manners

[0035] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the drawings are exemplary. Below, reference is made to Figures 1-7 Describe the engine hood 100 according to the first aspect embodiment of the present invention. The engine hood 100 can be used in a vehicle (not shown in the figure). In the following description of the present application, the engine hood 100 is used in a vehicle as an example for illustration.

[0036] As Figure 1 shown, the engine hood 100 according to the first aspect embodiment of the present invention includes a first hood (not shown in the figure), a second hood 1, and a plurality of buffer members 2.

[0037] Specifically, the second hood 1 and the first hood are arranged at intervals in the thickness direction of the first hood. A plurality of through holes 11 are formed in the second hood 1, and grooves 111 are formed on the inner wall surfaces of each of the through holes 11. The grooves 111 extend spirally along the circumferential direction of the through holes 11. In the description of the present invention, the meaning of "a plurality of" is two or more than two.

[0038] For example, in Figure 1 example, the through holes 11 penetrate through the second hood 1 in the thickness direction of the second hood 1. The plurality of through holes 11 are arranged at intervals in the middle area of the second hood 1. With such an arrangement, the setting of the through holes 11 on the second hood 1 reduces the local stiffness of the second hood 1. When a pedestrian's head hits the engine hood 100, the middle area of the second hood 1 is likely to be deformed, thereby buffering the reverse force received by the pedestrian's head and reducing the collision injury value of the pedestrian's head.

[0039] Combined with Figure 1 、 Figure 2 and Figure 5 , the buffer member 2 is arranged between the first hood and the second hood 1. A fitting protrusion 211 is provided on the outer peripheral surface of one end of the buffer member 2. The fitting protrusion 211 extends spirally along the circumferential direction of the buffer member 2. The fitting protrusions 211 of the plurality of buffer members 2 are respectively fitted in the grooves 111 of the plurality of through holes 11. For example, in Figure 1 、 Figure 2 and Figure 5 embodiment, the fitting protrusion 211 is formed on the outer peripheral surface of the lower end of the buffer member 2. The fitting protrusion 211 is in threaded fit with the groove 111, that is, the outer peripheral surface of the fitting protrusion 211 is attached to the inner wall surface of the groove 111. Among them, the lower end of the buffer member 2 can be of a bottle cap type structure, and the inner wall of the through hole 11 can be of a bottle mouth type structure, with a threaded fit between the bottle cap and the bottle mouth.

[0040] With such a setting, when the human head presses down on the engine hood 100, the buffer member 2 is squeezed and deformed downward, increasing the downward deformation amount of the first hood, thereby increasing the displacement amount during the head collision of the pedestrian. The buffer member 2 buffers and absorbs energy, further reducing the head collision injury value of the pedestrian. Moreover, the buffer member 2 effectively utilizes the space between the first hood and the second hood 1, which is conducive to energy absorption. In addition, the inner wall surface of the groove 111 is in threaded cooperation with the outer peripheral surface of the mating projection 211, strengthening the connection stability between the buffer member 2 and the second hood 1, preventing the buffer member 2 from displacing relative to the second hood 1 after being squeezed, thereby improving the use stability of the buffer member 2 and also improving the energy absorption effect. Also, the separation and assembly of the buffer member 2 and the second hood 1 can be achieved through a knob, reducing the difficulty of separating and assembling the buffer member 2 and the second hood 1, improving the efficiency of separating and assembling the buffer member 2 and the second hood 1, thus improving the assembly efficiency of the engine hood 100, and facilitating the replacement of the buffer member 2 after the buffer member 2 is damaged, extending the service life of the engine hood 100. It should be noted that the first hood can be the outer panel of the engine hood 100, and the second hood 1 can be the inner panel of the engine hood 100.

[0041] For the engine hood 100 according to the present invention, when the human head presses down on the engine hood 100, the buffer member 2 is squeezed and deformed, increasing the downward deformation amount of the first hood and the displacement amount during the head collision of the pedestrian, thereby further reducing the head collision injury value of the pedestrian. In addition, the inner wall surface of the groove 111 is in threaded cooperation with the outer peripheral surface of the mating projection 211, strengthening the connection stability between the buffer member 2 and the second hood 1, preventing the buffer member 2 from displacing after being squeezed, thereby improving the use stability of the buffer member 2 and also improving the buffering effect. Also, it is convenient for the separation and assembly of the buffer member 2 and the second hood 1, improving the assembly efficiency of the engine hood 100 and also facilitating the replacement of the buffer member 2, thus extending the service life of the engine hood 100.

[0042] According to some embodiments of the present invention, referring to Figure 3 and Figure 4 , the second hood 1 includes a body 12 and a plurality of bosses 13. A plurality of openings 121 are formed on the body 12. The bosses 13 are provided on the side of the body 12 away from the first hood. The plurality of bosses 13 are respectively opposite to the plurality of openings 121. A through hole 131 is formed on the boss 13. The through hole 131 and the opening 121 together define a through hole 11.

[0043] For example, in Figure 3 and Figure 4In the example, the opening 121 penetrates through the second hood 1 along the thickness direction of the second hood 1. The plurality of bosses 13 are respectively opposite to the plurality of openings 121 along the thickness direction of the second hood 1, and the through holes 131 are opposite to the openings 121. With such an arrangement, the through holes 131 on the bosses 13 increase the contact area between the lower end of the buffer member 2 and the inner wall surface of the groove 111 on the inner wall of the through hole 11, and also increase the distance of the cooperation between the mating protrusions 211 and the grooves 111 along the thickness direction of the second hood 1, thereby further strengthening the connection stability between the buffer member 2 and the second hood 1, avoiding the displacement of the buffer member 2 relative to the second hood 1 after the buffer member 2 is squeezed, and further improving the use stability of the buffer member 2 and also improving the buffering effect.

[0044] Among them, the boss 13 and the body 12 are of an integral structure, which strengthens the structural strength and stability of the boss 13 and improves the use performance of the boss 13. The cross-sectional shape of the through hole 11 is circular, and the diameters of the plurality of through holes 11 are the same. The plurality of through holes 11 are staggered, which is beneficial to balancing the weights of different regions of the second hood 1 of the engine hood 100, so that the load transmitted by the first hood of the engine hood 100 can be evenly distributed. When a pedestrian's head hits the engine hood 100, the whole engine hood 100 collapses and absorbs energy, which is beneficial to reducing the injury degree of the pedestrian's head. However, it is not limited to this. It should be noted that the sizes or arrangement manners of the plurality of through holes 11 can be optimally designed according to the strength and impact resistance of the second hood 1 of different vehicle models.

[0045] According to some embodiments of the present invention, with reference to Figure 5 , the buffer member 2 includes a mating portion 21 and a buffer portion 22, and mating protrusions 211 are provided on the outer peripheral surface of the mating portion 21. One end of the buffer portion 22 is connected to one end of the mating portion 21 facing the first hood, the other end surface of the buffer portion 22 is connected to one side surface of the first hood facing the second hood 1, and the buffer portion 22 is telescopable along the thickness direction of the first hood. For example, in Figure 5 's example, the mating portion 21 is located at the lower end of the buffer member 2, the lower end of the buffer portion 22 is connected to the upper end of the mating portion 21, the upper end of the buffer portion 22 is connected to the lower side surface of the first hood, and the buffer portion 22 can extend in the up and down direction.

[0046] With such a setting, after the engine hood 100 is impacted, the buffer part 22 contracts downward, which can absorb part of the impact force, thereby weakening the reverse force when the pedestrian's head hits the engine hood 100 and reducing the degree of damage to the pedestrian's head. In addition, after the buffer member 2 is subjected to a small impact force, after the buffer part 22 is compressed downward, it can automatically move upward and return to its original position, facilitating the next use of the buffer member 2 and improving the utilization rate of the buffer member 2. In addition, the upper end of the buffer member 2 is connected to the first hood, and the lower end of the buffer member 2 is detachably connected to the second hood 1, which also strengthens the stiffness of the engine hood 100, thereby improving the performance of the engine hood 100. Among them, the upper end of the buffer part 22 is connected to the first hood by gluing or welding, but not limited to this, and the connection method can be selected according to the actual use situation.

[0047] According to some embodiments of the present invention, referring to Figure 5 and Figure 6 , the buffer part 22 includes a plurality of buffer groups 221 connected to each other, and the plurality of buffer groups 221 are arranged along the thickness direction of the first hood. Each buffer group 221 includes a first buffer section 2211 and a second buffer section 2212. A first opening 2211a is formed on the first buffer section 2211. A second opening 2212a is formed on the second buffer section 2212. The second opening 2212a is opposite to the first opening 2211a. The outer peripheral edge of the second buffer section 2212 is connected to the outer peripheral edge of the first buffer section 2211. A telescopic space 223 is jointly defined between the second buffer section 2212 and the first buffer section 2211. The inner peripheral edges of the second buffer section 2212 and the first buffer section 2211 can approach and move away from each other.

[0048] For example, in the Figure 5 example, there are three buffer groups 221, and the three buffer groups 221 are arranged in sequence in the up and down direction. The first buffer section 2211 and the second buffer section 2212 are arranged in the up and down direction. The first opening 2211a is formed at the upper end of the first buffer section 2211. The second opening 2212a is formed at the lower end of the second buffer section 2212. The outer peripheral edge of the lower end of the first buffer section 2211 is connected to the outer peripheral edge of the upper end of the second buffer section 2212. Both the first buffer section 2211 and the second buffer section 2212 are substantially trumpet-shaped.

[0049] With such a setting, when a pedestrian's head hits the engine hood 100 and the buffer part 22 is squeezed, the inner peripheries of the second buffer section 2212 and the first buffer section 2211 approach each other, the telescopic space 223 decreases to absorb energy, reducing the reverse action of the engine hood 100 on the pedestrian's head, thereby reducing the degree of damage to the pedestrian's head. After the squeezing force on the buffer member 2 disappears, the inner peripheries of the second buffer section 2212 and the first buffer section 2211 move away from each other, the telescopic space 223 increases, and the buffer part 22 returns to its original position, facilitating the next use of the buffer member 2. In addition, the structures of the first buffer section 2211 and the second buffer section 2212 are simple and easy to produce, thereby improving the production efficiency of the buffer part 22 and the production efficiency of the buffer member 2. However, it is not limited thereto. It should be noted that the number of buffer groups 221 of the buffer part 22 can be flexibly adjusted according to the gap between the first hood and the second hood 1, which is beneficial to further fully utilize the energy absorption space between the first hood and the second hood 1, thereby reducing the injury value of the pedestrian's head.

[0050] Furthermore, referring to Figure 5 , the outer peripheral cross-sectional area of the fitting part 21 is smaller than the outer peripheral cross-sectional area of the buffer part 22. Thus, the telescopic space 223 in the buffer group 221 is increased, thereby further improving the buffering ability of the buffer member 2 and helping to further reduce the injury value of the pedestrian's head. In addition, during the assembly process of the fitting part 21 and the through hole 11, the buffer part 22 can limit the fitting part 21 to prevent the fitting part 21 from moving further downward.

[0051] According to some embodiments of the present invention, referring to Figure 7 , a plurality of transmission elements 3 are provided on the outer peripheral side of each buffer member 2, the plurality of transmission elements 3 are arranged at intervals along the circumferential direction of the buffer member 2, one ends of the plurality of transmission elements 3 are respectively connected to the buffer part 22, and the other ends of the plurality of transmission elements 3 are respectively in contact with one side surface of the first hood facing the second hood 1. During the process of compression of the buffer part 22, the other ends of the plurality of transmission elements 3 move in a direction away from the central axis of the buffer part 22.

[0052] For example, in Figure 7In the example, the lower end of the transmission element 3 is connected to the outer peripheral edge of the buffer group 221 at the lower end of the buffer part 22 (i.e., the above-mentioned one end). After the pedestrian's head collides with the engine hood 100, the buffer part 22 is compressed. At the same time, the upper ends of the plurality of transmission elements 3 (i.e., the above-mentioned other end) move in a direction away from the central axis of the buffer part 22, and the plurality of transmission elements 3 adsorb on the first hood, so that the buffer member 2 can absorb energy in the up and down direction, and the plurality of transmission elements 3 can also absorb energy in the direction perpendicular to the up and down direction, further improving the energy absorption effect of the engine hood 100 and further reducing the injury value of the pedestrian's head. Among them, when the energy absorption intensity of the buffer member 2 and the plurality of transmission elements 3 between the first hood and the second hood 1 of the engine hood 100 cannot be satisfied, the cooperation of the mating part 21 and the through hole 11 can perform the final energy absorption. It should be noted that the above different energy absorption methods can be determined according to the degree of extrusion of the engine hood 100 of the vehicle, so as to play a role in meeting the reduction of the pedestrian's head injury. It also effectively improves the overall energy absorption of the engine hood 100 during a collision, which is beneficial to solving the problem of a high casualty rate when a pedestrian's head collides with a vehicle.

[0053] According to some embodiments of the present invention, referring to Figure 7 , it extends obliquely from one end of the transmission element 3 towards the other end and from the other end of the transmission element 3 towards a direction away from the central axis of the buffer member 2. For example, in Figure 7 's example, it extends obliquely from the lower end to the upper end and from the upper end of the transmission element 3 towards a direction away from the central axis of the buffer member 2. The transmission element 3 is spaced from the outer peripheral surface of the buffer group 221 in the middle and upper parts of the buffer part 22. With such a setting, after the transmission element 3 is squeezed, it effectively ensures that the upper end of the transmission element 3 can move in a direction away from the central axis of the transmission member, thereby effectively ensuring the energy absorption of the transmission element 3. In addition, the structure of the transmission element 3 is simple and easy to produce, thus improving the production efficiency of the transmission element 3 and the production rate of the engine hood 100. Among them, through simulation verification, several collision points are selected on the engine hood 100 to compare the collision safety valve values of HIC15. Under the same collision point, the HIC15 of the engine hood 100 of the present application is about half of the safety valve value of the HIC15 of the traditional engine hood, showing a significant difference and obvious effect.

[0054] According to some embodiments of the present invention, referring to Figure 1, the second hood 1 includes a first guard plate 14 and a second guard plate 15, and a through hole 11 is formed in the first guard plate 14. The second guard plate 15 is provided on the outer peripheral side of the first guard plate 14. One side of the second guard plate 15 is connected to the outer peripheral edge of the first guard plate 14, and the other side of the second guard plate 15 extends in a direction away from the center of the first guard plate 14 along the thickness direction of the first guard plate 14. A plurality of holes 151 are formed in the second guard plate 15, and the plurality of holes 151 are arranged at intervals along the circumferential direction of the first guard plate 14.

[0055] For example, in Figure 1 's example, the holes 151 penetrate through the second guard plate 15 along the thickness direction of the second hood 1, and the four holes 151 are arranged at intervals on one side along the circumferential direction of the first guard plate 14. Thus, the arrangement of the holes 151 increases the deformation force of the second guard plate 15, thereby avoiding the deformation and fracture of the second guard plate 15, further reducing the reverse force received by the pedestrian's head, and also extending the service life of the second guard plate 15 and the service life of the second hood 1. However, it is not limited thereto. It should be noted that the number and arrangement of the holes 151 can be specifically set according to the actual use situation to better meet the actual use.

[0056] According to some embodiments of the present invention, referring to Figure 1 , the cross-sectional shape of the hole 151 is a polygon. For example, in Figure 1 's example, the cross-sectional shape of the hole 151 is a rectangle. With such an arrangement, the side wall edges of the hole 151 are prone to deformation, thereby further increasing the deformation force at the second guard plate 15 and effectively preventing the deformation and fracture of the second guard plate 15. In addition, the cross-sectional shape structure of the hole 151 is simple and easy to form, thereby improving the production efficiency of the hole 151.

[0057] A vehicle (not shown in the figure) according to an embodiment of the second aspect of the present invention includes the engine hood 100 according to the above-mentioned first aspect embodiment of the present invention.

[0058] According to the vehicle of the embodiment of the present invention, by adopting the above-mentioned engine hood 100, when a pedestrian collides with the vehicle, the injury value of the pedestrian's head is reduced.

[0059] The other components and operations of the engine hood 100 and the vehicle according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0060] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An engine hood, characterized in that, Comprising: A first hood; A second hood, the second hood and the first hood are spaced apart in the thickness direction of the first hood, a plurality of through holes are formed in the second hood, and grooves are formed on the inner wall surfaces of each of the through holes, and the grooves extend spirally along the circumferential direction of the through holes; A plurality of buffer members, the buffer members are arranged between the first hood and the second hood, a mating projection is provided on the outer peripheral surface of one end of the buffer member, the mating projection extends spirally along the circumferential direction of the buffer member, and the mating projections of the plurality of buffer members are respectively fitted in the grooves of the plurality of through holes.

2. The engine hood according to claim 1, characterized in that, The second hood includes: A body, a plurality of openings are formed in the body; A plurality of bosses, the bosses are arranged on the side of the body away from the first hood, the plurality of bosses are respectively opposite to the plurality of openings, and through holes are formed in the bosses, and the through holes and the openings jointly define the through holes.

3. The engine hood according to claim 1, characterized in that, The buffer member includes: A mating portion, the mating projection is provided on the outer peripheral surface of the mating portion; A buffer portion, one end of the buffer portion is connected to the end of the mating portion facing the first hood, the end surface of the other end of the buffer portion is connected to the side surface of the first hood facing the second hood, and the buffer portion is telescopable in the thickness direction of the first hood.

4. The engine hood according to claim 3, characterized in that, The buffer portion includes a plurality of buffer groups connected to each other, the plurality of buffer groups are arranged in the thickness direction of the first hood, and each buffer group includes: A first buffer section, a first open end is formed on the first buffer section; A second buffer section, a second open end is formed on the second buffer section, the second open end is opposite to the first open end, the outer peripheral edge of the second buffer section is connected to the outer peripheral edge of the first buffer section, a telescopic space is jointly defined between the second buffer section and the first buffer section, and the inner peripheral edge of the second buffer section and the inner peripheral edge of the first buffer section can approach and move away from each other.

5. The engine hood according to claim 3, characterized in that, The outer peripheral cross-sectional area of the mating portion is smaller than the outer peripheral cross-sectional area of the buffer portion.

6. The engine hood according to claim 3, characterized in that, A plurality of transmission elements are provided on the outer peripheral side of each buffer member, the plurality of transmission elements are spaced apart along the circumferential direction of the buffer member, one ends of the plurality of transmission elements are respectively connected to the buffer portion, and the other ends of the plurality of transmission elements are respectively in contact with the side surface of the first hood facing the second hood; During the process of compression of the buffer portion, the other ends of the plurality of transmission elements move in a direction away from the central axis of the buffer portion.

7. The engine hood according to claim 6, characterized in that, It extends obliquely from one end of the transmission element towards the other end and in a direction in which the other end of the transmission element is away from the central axis of the buffer member.

8. The engine hood according to claim 1, characterized in that, The second hood includes: A first guard plate, the through holes are formed in the first guard plate; A second guard plate, the second guard plate is arranged on the outer peripheral side of the first guard plate, one side of the second guard plate is connected to the outer peripheral edge of the first guard plate, the other side of the second guard plate extends in a direction away from the center of the first guard plate in the thickness direction of the first guard plate, and a plurality of holes are formed in the second guard plate, and the plurality of holes are spaced apart along the circumferential direction of the first guard plate.

9. The engine hood according to claim 8, characterized in that, The cross-sectional shape of the hole is polygonal.

10. A vehicle, characterized in that, Comprising an engine hood according to any one of claims 1-9.

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