Front bumper structure for light truck

Abstract

The utility model relates to the technical field of light trucks, and discloses a front bumper structure for a light truck, the front bumper structure comprises a bumper inner plate, a bumper body arranged on the outer side of the bumper inner plate and an energy absorption box, the bumper body is provided with a dismounting opening for the energy absorption box to penetrate through, and the energy absorption box comprises a main body and a connecting part protruding out of the side portion of the main body. The bumper inner plate is provided with a mounting hole, the main body penetrates through the bumper inner plate through the mounting hole and is in contact with a vehicle frame, the connecting part is located on the outer side of the bumper inner plate and is detachably connected to the bumper inner plate, and the energy absorption box can be taken out through the dismounting opening, so that the situation that a cab cannot be overturned due to the existence of the energy absorption box is avoided; and on the premise that the collision energy absorption performance of the front bumper structure is guaranteed, the effect of conveniently overhauling the light truck is achieved, so that the front bumper structure and a cab are arranged to be of an integrated structure, the appearance attractiveness of the light truck is greatly improved, and the wind resistance coefficient of the light truck is greatly reduced.

Description

Technical Field

[0001] This application belongs to the technical field of light trucks, and particularly relates to a front bumper structure for a light truck. Background Art

[0002] An energy absorption box, also known as a collision box or a crush box, is an important part of an automotive safety system, especially playing a key role in collision protection. For the convenience of repairing a light truck, the cab of the light truck can be flipped over the frame; the energy absorption box of a traditional light truck is first installed on the frame and then fixedly connected to the bumper. This installation method is applicable to a split bumper, that is, the bumper is independent of the cab and there is a large flipping gap reserved between the bumper and the cab to ensure that the bumper can avoid it when the cab is flipped.

[0003] With the increasing number of new energy vehicle models, in order to ensure the beautiful appearance of the light truck and reduce the wind resistance coefficient of the light truck, our company has designed an integral bumper, which cancels the flipping gap between the front bumper and the cab. That is to say, the front bumper and the cab are designed as an integral body and can follow the cab to flip. As a result, the traditional installation method of the energy absorption box is not applicable to the integral bumper, which will cause the entire cab unable to flip, thus greatly increasing the repair difficulty of the light truck. Therefore, how to install the energy absorption box of the integral bumper to reduce the repair difficulty of the light truck has become an urgent technical problem to be solved. Utility Model Content

[0004] This application provides a front bumper structure for a light truck to reduce the repair difficulty of the light truck.

[0005] The technical solution adopted by this application is as follows:

[0006] A front bumper structure for a light truck includes an inner bumper panel, a bumper body disposed outside the inner bumper panel, and an energy absorption box. The bumper body is provided with a disassembly opening for the energy absorption box to pass through. The energy absorption box includes a main body and a connecting portion protruding from the side of the main body. The inner bumper panel is provided with an installation hole. The main body passes through the inner bumper panel via the installation hole and contacts the frame. The connecting portion is located outside the inner bumper panel and is detachably connected to the inner bumper panel.

[0007] By adopting the above technical solution, when overhauling a light truck equipped with the front bumper structure of the present application, first separate the energy-absorbing box from the bumper inner panel, and then take out the energy-absorbing box through the disassembly opening to complete the disassembly of the energy-absorbing box. Then, turn over the cab. Since the energy-absorbing box has been removed, the situation where the cab cannot be turned over due to the presence of the energy-absorbing box is avoided. Furthermore, on the premise of ensuring the collision energy-absorbing performance of the front bumper structure, the effect of facilitating the overhaul of the light truck is achieved. In order to set the front bumper structure as an integral structure with the cab, the aesthetic appearance of the light truck is greatly improved and the wind resistance coefficient of the light truck is reduced.

[0008] In addition, compared with the prior art solution in which connection parts are provided at both ends of the energy-absorbing box, the energy-absorbing box in the present application reduces the consumption of materials of the energy-absorbing box, thereby reducing the production cost of the energy-absorbing box.

[0009] Optionally, the main body has an outer end close to the bumper body and an inner end opposite to the outer end. The connection part is a connecting piece provided at the outer end. The connecting piece has a protruding section protruding from the side of the main body. The protruding section is detachably connected to the bumper inner panel through a bolt pair.

[0010] By adopting the above technical solution, since the connection part is a connecting piece provided at the outer end of the main body, on the premise of ensuring the connection stability between the energy-absorbing box and the bumper inner panel, the weight of the energy-absorbing box is reduced to achieve the effect of lightweight, and at the same time, the production cost of the energy-absorbing box is also reduced.

[0011] Optionally, a fixing piece is provided at the inner end. The size of the fixing piece is smaller than the size of the mounting hole and smaller than the size of the connecting piece. The fixing piece is connected to the vehicle frame through a bolt pair.

[0012] By adopting the above technical solution, since the fixing piece is smaller than the size of the mounting hole and the size of the connecting piece, when disassembling the energy-absorbing box, the fixing piece can pass through the mounting hole to ensure the normal disassembly of the energy-absorbing box. And since the fixing piece is connected to the vehicle frame through a bolt pair, on the one hand, it can ensure the energy-absorbing performance of the energy-absorbing box during the side collision of the light truck, and on the other hand, it can increase the stability of the energy-absorbing box and avoid the situation where the energy-absorbing box may exert a downward pressure on the bumper inner panel due to the lack of restraint of the vehicle frame.

[0013] Optionally, the connecting piece is provided with a communication hole for the bolt to pass through.

[0014] By adopting the above technical solution, since the connecting piece is provided with a communication hole for the bolt to pass through, the bolt for connecting the main body and the vehicle frame can enter the interior of the main body through the communication hole, so as to achieve the effect of facilitating the fixing of the main body.

[0015] Optionally, an elastic guide body is disposed inside the main body, and the elastic guide body is provided with a through hole for the bolt to pass through.

[0016] By adopting the above technical solution, since an elastic guide body is disposed inside the main body, the energy absorption performance of the energy absorption box is further increased, so as to improve the collision energy absorption performance of the front bumper structure; and since the elastic guide body is provided with a through hole for the bolt to pass through, when the bolt is used to fix the main body, the hole wall of the through hole can guide the bolt, so as to achieve the effect of quickly installing the bolt in place, thereby greatly reducing the installation difficulty of the energy absorption box and improving the installation efficiency of the energy absorption box.

[0017] Optionally, a maintenance cover for shielding the energy absorption box is detachably connected to the disassembly port.

[0018] By adopting the above technical solution, since a maintenance cover is provided at the disassembly port, the maintenance cover can shield the energy absorption box, so as to increase the aesthetic property of the front bumper structure and avoid the situation that non-staff can disassemble the energy absorption box.

[0019] Optionally, the bumper inner panel is provided with a strengthening area surrounding the mounting hole, and the thickness of the strengthening area is greater than the thickness of other positions of the bumper inner panel.

[0020] By adopting the above technical solution, since the bumper inner panel is provided with a strengthening area surrounding the mounting hole, the connection strength between the connecting piece and the bumper inner panel is increased, and the situation that the connecting position between the connecting piece and the bumper inner panel is easily torn is avoided, so as to ensure the collision energy absorption performance of the front bumper structure.

[0021] Optionally, it further includes a positioning portion disposed on the vehicle frame for positioning the main body.

[0022] By adopting the above technical solution, since the positioning portion is used for positioning the main body, the installation difficulty of the main body is greatly reduced, thereby further improving the installation efficiency of the energy absorption box and greatly improving the maintenance efficiency of the light truck.

[0023] Optionally, the positioning portion is an annular rib disposed on the vehicle frame.

[0024] By adopting the above technical solution, since the positioning portion is an annular rib disposed on the vehicle frame, the positioning portion can not only position the main body, but also limit the main body, so as to improve the energy absorption effect when the front bumper structure is side-collided.

[0025] Optionally, the positioning portion is a magnetic sheet disposed on the vehicle frame.

[0026] By adopting the above technical solution, since the positioning part is a magnetic sheet provided on the vehicle frame, the positioning part can not only position the main body, but also, when installing the energy absorption box, the magnetic sheet can apply a magnetic force towards the vehicle frame to the energy absorption box to assist in the installation of the energy absorption box, thus achieving the effect of facilitating the installation of the energy absorption box.

[0027] Due to the adoption of the above technical solution, the beneficial effects obtained by this application are as follows:

[0028] 1. The front bumper structure in this application includes a bumper inner panel, a bumper body provided on the outer side of the bumper inner panel, and an energy absorption box. The bumper body is provided with a disassembly opening for the energy absorption box to pass through. The energy absorption box includes a main body and a connecting portion protruding from the side portion of the main body. The bumper inner panel is provided with an installation hole. The main body passes through the bumper inner panel via the installation hole and contacts the vehicle frame. The connecting portion is located outside the bumper inner panel and is detachably connected to the bumper inner panel. When overhauling a light truck equipped with the front bumper structure in this application, first separate the energy absorption box from the bumper inner panel, and then take out the energy absorption box through the disassembly opening to complete the disassembly of the energy absorption box. Then, turn over the cab. Since the energy absorption box has been removed, the situation where the cab cannot be turned over due to the presence of the energy absorption box is avoided. Furthermore, on the premise of ensuring the collision energy absorption performance of the front bumper structure, the effect of facilitating the overhaul of the light truck is achieved, so that the front bumper structure can be set as an integral structure with the cab to greatly improve the styling aesthetics of the light truck and reduce the wind resistance coefficient of the light truck.

[0029] 2. The main body in this application has an outer end close to the bumper body and an inner end opposite to the outer end. The connecting portion is a connecting piece provided at the outer end. The connecting piece has a protruding section protruding from the side portion of the main body. The protruding section is detachably connected to the bumper inner panel through a bolt pair. Thus, on the premise of ensuring the connection stability between the energy absorption box and the bumper inner panel, the weight of the energy absorption box is reduced to achieve the effect of lightweight, and at the same time, the production cost of the energy absorption box is also reduced.

[0030] 3. The inner end in this application is provided with a fixing piece. The size of the fixing piece is smaller than the size of the installation hole and smaller than the size of the connecting piece. Thus, when disassembling the energy absorption box, the fixing piece can pass through the installation hole to ensure the normal disassembly of the energy absorption box. The fixing piece is connected to the vehicle frame through a bolt pair. On the one hand, it can ensure the energy absorption performance of the energy absorption box during a side collision of the light truck. On the other hand, it can increase the stability of the energy absorption box and avoid the situation where the energy absorption box may exert a downward pressure on the bumper inner panel due to the lack of restraint of the vehicle frame. Brief Description of the Drawings

[0031] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0032] Figure 1 is an exploded schematic view of the front bumper structure described in an embodiment of the present application;

[0033] Figure 2 is a schematic view of the structure of the energy absorption box described in an embodiment of the present application;

[0034] Figure 3 is a cross-sectional view of the front bumper structure described in an embodiment of the present application;

[0035] Figure 4 is a schematic view of the front bumper structure from another perspective described in an embodiment of the present application.

[0036] Reference numerals:

[0037] 1, inner bumper panel; 11, mounting hole; 2, bumper body; 21, disassembly opening; 3, energy absorption box; 31, connecting piece; 311, communication hole; 32, main body; 33, fixing piece; 4, inspection cover; 5, vehicle frame. Detailed embodiments

[0038] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0039] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of the present application and the features in each embodiment may be combined with each other.

[0040] In addition, in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application 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 application.

[0041] In this application, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In this application, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one embodiment", "some 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 this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] Refer to Figures 1 to 4 , a front bumper structure for a light truck is disclosed, which includes a bumper inner panel 1, a bumper body 2 arranged outside the bumper inner panel 1, and an energy absorption box 3. The bumper body 2 is provided with a disassembly opening 21 for the energy absorption box 3 to pass through. The energy absorption box 3 includes a main body 32 and a connecting portion protruding from the side of the main body 32. The bumper inner panel 1 is provided with an installation hole 11. The main body 32 passes through the bumper inner panel 1 via the installation hole 11 and contacts the vehicle frame 5. The connecting portion is located outside the bumper inner panel 1 and is detachably connected to the bumper inner panel 1.

[0044] It should be noted that the outside of the bumper inner panel 1 refers to the side of the bumper inner panel 1 facing away from the vehicle frame 5.

[0045] When overhauling a light truck equipped with the front bumper structure of this application, first separate the energy absorption box 3 from the bumper inner panel 1, and then take out the energy absorption box 3 through the disassembly opening 21 to complete the disassembly of the energy absorption box 3. Then, turn over the cab. Since the energy absorption box 3 has been removed, the situation where the cab cannot be turned over due to the presence of the energy absorption box 3 is avoided. Furthermore, on the premise of ensuring the collision energy absorption performance of the front bumper structure, the effect of facilitating the overhaul of the light truck is achieved. In order to set the front bumper structure as an integrated structure with the cab, the styling aesthetics of the light truck can be greatly improved and the wind resistance coefficient of the light truck can be reduced.

[0046] In addition, compared with the solution in the prior art in which both ends of the energy absorption box 3 are provided with connecting parts, the energy absorption box 3 in the present application reduces the amount of consumables of the energy absorption box 3, thereby reducing the production cost of the energy absorption box 3.

[0047] This application does not specifically limit the structure of the connecting portion. Preferably, refer to Figure 2 and Figure 3 The main body 32 has an outer end close to the bumper body 2 and an inner end opposite to the outer end. The connecting part is a connecting piece 31 provided at the outer end. The connecting piece 31 has a protruding section protruding from the side of the main body 32. The protruding section is detachably connected to the bumper inner plate 1 by a bolt pair.

[0048] It can be understood that the size of the connecting piece 31 is larger than the size of the mounting hole 11, that is, the width and length of the connecting piece 31 are both larger than the corresponding sizes of the mounting hole 11, which makes it impossible for the connecting piece 31 to pass through the mounting hole 11 and stay stably on the side of the bumper inner panel 1 facing away from the frame 5.

[0049] Since the connecting portion is a connecting piece 31 provided at the outer end of the main body 32, the weight of the energy absorbing box 3 is reduced while ensuring the connection stability between the energy absorbing box 3 and the bumper inner panel 1, thereby achieving a lightweight effect. At the same time, the production cost of the energy absorbing box 3 is reduced, and the force on the bumper inner panel 1 can be balanced to increase the supporting stability of the energy absorbing box 3 on the bumper inner panel 1.

[0050] Preferably, there are at least two protruding sections, and the two protruding sections are arranged opposite to each other to increase the connection points between the energy absorption box 3 and the bumper inner panel 1, thereby increasing the connection stability between the energy absorption box 3 and the bumper inner panel 1 to ensure the collision energy absorption performance of the front bumper structure.

[0051] Preferably, the nut of the bolt pair used to connect the protruding section and the bumper inner panel 1 is fixedly connected to the side of the bumper inner panel 1 facing the frame 5, so that when disassembling and assembling the energy absorption box 3, only the bolts of the bolt pair need to be tightened, thereby reducing the difficulty of disassembling and assembling the energy absorption box 3.

[0052] In other embodiments, the connecting portion may also be a block-shaped structure provided at the outer end of the main body 32 .

[0053] Of course, the connecting portion can also be detachably connected to the bumper inner panel 1 through other fasteners.

[0054] In a preferred embodiment, referring to Figure 2 and Figure 3 A fixing plate 33 is provided at the inner end. The size of the fixing plate 33 is smaller than the size of the mounting hole 11, and the size of the fixing plate 33 is smaller than the size of the connecting plate 31. The fixing plate 33 is connected to the frame 5 by a bolt pair.

[0055] It can be understood that the length and width of the fixing plate 33 are both smaller than the corresponding dimensions of the mounting hole 11, so that the fixing plate 33 can pass through the mounting hole 11 to ensure the normal disassembly of the energy absorption box 3; and because the fixing plate 33 is connected to the frame 5 by a bolt pair, on the one hand, it can ensure the energy absorption performance of the energy absorption box 3 during the side collision of the light truck, and on the other hand, it can increase the stability of the energy absorption box 3, avoiding the situation where the energy absorption box 3 may exert downward pressure on the bumper inner panel 1 due to the lack of constraint of the frame 5.

[0056] Preferably, the nut in the bolt pair for connecting the fixing plate 33 and the frame 5 is fixedly connected to the inner wall of the frame 5, so that when disassembling and assembling the energy absorption box 3, it is only necessary to tighten the bolts of the bolt pair, thereby reducing the difficulty of disassembling and assembling the energy absorption box 3.

[0057] Further, refer to Figure 2 The connecting piece 31 is provided with a connecting hole 311 for the bolt to pass through, so that the bolt that the user connects the main body 32 and the frame 5 can enter the interior of the main body 32 through the connecting hole 311, so as to facilitate the fixation of the main body 32.

[0058] Furthermore, an elastic guide body is provided inside the main body 32, and the elastic guide body is provided with a through hole for the bolt to pass through, thereby further increasing the energy absorption performance of the energy absorption box 3, so as to improve the collision energy absorption performance of the front bumper structure; and because the elastic guide body is provided with a through hole for the bolt to pass through, when the bolt is used to fix the main body 32, the hole wall of the through hole can guide the bolt to achieve the effect of quickly installing the bolt into place, thereby greatly reducing the difficulty of installing the energy absorption box 3 and improving the installation efficiency of the energy absorption box 3.

[0059] The present application does not make any specific limitation on the structure of the elastic guide body. Preferably, the elastic guide body is a block structure made of rubber material. In other embodiments, the elastic guide body can also be a structure made of other elastic materials.

[0060] In a preferred embodiment, referring to Figure 1 、 Figure 3 and Figure 4 The disassembly port 21 is detachably connected to an inspection cover 4 for shielding the energy absorption box 3, so as to increase the aesthetics of the front bumper structure and prevent non-staff from disassembling the energy absorption box 3.

[0061] The present application does not specifically limit the manner in which the access cover 4 is detachably connected to the bumper body 2. Preferably, the access cover 4 is detachably connected to the bumper body 2 by screws to increase the stability of the connection between the two. In other embodiments, the access cover 4 can also be detachably connected to the bumper body 2 by a snap-fit structure.

[0062] In a preferred embodiment, the inner bumper panel 1 is provided with a reinforcing area surrounding the mounting hole 11. The thickness of the reinforcing area is greater than that of other positions of the inner bumper panel 1, thereby increasing the connection strength between the connecting piece 31 and the inner bumper panel 1 and avoiding the situation that the connection position between the connecting piece 31 and the inner bumper panel 1 is easily torn, so as to ensure the collision energy absorption performance of the front bumper structure.

[0063] The present application does not specifically limit the formation method of the reinforcing area. Preferably, the reinforcing area is formed by thickening the peripheral area of the mounting hole 11 of the inner bumper panel 1. In other embodiments, the reinforcing area can also be formed by a gasket provided on the periphery of the mounting hole 11.

[0064] In a preferred embodiment, the front bumper structure further includes a positioning portion provided on the vehicle frame 5 for positioning the main body 32, so as to greatly reduce the installation difficulty of the main body 32, thereby further improving the installation efficiency of the energy absorption box 3 and greatly improving the maintenance efficiency of the light truck.

[0065] The present application does not specifically limit the structure of the positioning portion, and any one of the following embodiments can be adopted:

[0066] Embodiment 1: In this embodiment, the positioning portion is an annular rib provided on the vehicle frame 5. The annular rib surrounds the main body 32, so that the positioning portion can not only position the main body 32, but also limit the main body 32, so as to improve the energy absorption effect when the front bumper structure collides from the side.

[0067] Embodiment 2: In this embodiment, the positioning portion is a magnetic sheet provided on the vehicle frame 5. Thus, the positioning portion can not only position the main body 32, but also when installing the energy absorption box 3, the magnetic sheet can apply a magnetic force towards the vehicle frame 5 to the energy absorption box 3 to assist in the installation of the energy absorption box 3, thereby achieving the effect of facilitating the installation of the energy absorption box 3.

[0068] What is not described in the present application can be realized by adopting or referring to the existing technology.

[0069] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0070] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A front bumper structure for a light truck, characterized in that, It includes an inner bumper panel (1), a bumper body (2) provided on the outer side of the inner bumper panel (1), and an energy absorption box (3). The bumper body (2) is provided with a disassembly opening (21) for the energy absorption box (3) to pass through. The energy absorption box (3) includes a main body (32) and a connecting portion protruding from the side portion of the main body (32). The inner bumper panel (1) is provided with a mounting hole (11). The main body (32) passes through the inner bumper panel (1) via the mounting hole (11) and contacts the vehicle frame (5). The connecting portion is located on the outer side of the inner bumper panel (1) and is detachably connected to the inner bumper panel (1).

2. The front bumper structure for a light truck according to claim 1, characterized in that, The main body (32) has an outer end close to the bumper body (2) and an inner end opposite to the outer end. The connecting portion is a connecting piece (31) provided at the outer end. The connecting piece (31) has a protruding section protruding from the side portion of the main body (32). The protruding section is detachably connected to the inner bumper panel (1) by a bolt pair.

3. The front bumper structure for a light truck according to claim 2, characterized in that, The inner end is provided with a fixing piece (33). The size of the fixing piece (33) is smaller than the size of the mounting hole (11), and the size of the fixing piece (33) is smaller than the size of the connecting piece (31). The fixing piece (33) is connected to the vehicle frame (5) by a bolt pair.

4. The front bumper structure for a light truck according to claim 3, characterized in that, The connecting piece (31) is provided with a through hole (311) for a bolt to pass through.

5. The front bumper structure for a light truck according to claim 3, characterized in that, An elastic guiding body is arranged inside the main body (32). The elastic guiding body is provided with a through hole for a bolt to pass through.

6. The front bumper structure for a light truck according to claim 1, characterized in that, A maintenance cover (4) for shielding the energy absorption box (3) is detachably connected at the disassembly opening (21).

7. The front bumper structure for a light truck according to claim 1, characterized in that, The inner bumper panel (1) is provided with a strengthening area surrounding the mounting hole (11). The thickness of the strengthening area is greater than the thickness of other positions of the inner bumper panel (1).

8. The front bumper structure for a light truck according to claim 1, characterized in that, It also includes a positioning portion provided on the vehicle frame (5) for positioning the main body (32).

9. The front bumper structure for a light truck according to claim 8, characterized in that, The positioning portion is an annular rib provided on the vehicle frame (5).

10. The front bumper structure for a light truck according to claim 8, characterized in that, The positioning portion is a magnetic sheet provided on the vehicle frame (5).

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