Vehicle body structure

Abstract

The utility model relates to a vehicle body structure which comprises a front girder and an anti-collision beam, the front girder is provided with a first cavity, the anti-collision beam is located on one side of the front girder, a traction hook nut is installed on the anti-collision beam, a connecting support is arranged in the first cavity, and one end of the connecting support is fixedly connected with the traction hook nut in the height direction of the vehicle body structure. And the other end of the connecting bracket is fixedly connected with the cavity wall of the first cavity. The towing hook nut is used for installing a towing hook, the towing hook nut is connected with the front girder through the connecting support, and when a vehicle is towed, acting force borne by the towing hook nut can be transmitted to the front girder through the connecting support, so that the position, where the towing hook nut is arranged, of the anti-collision beam can bear large loads. Therefore, the strength of the installation position of the towing hook is improved, the installation stability and reliability of the towing hook are improved, and the outside can conveniently tow a vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle body, in particular to a vehicle body structure. BACKGROUND

[0002] A towing hook is usually installed on the vehicle body of a vehicle to facilitate towing of the vehicle. However, the installation position of the towing hook is low in strength, which affects the reliability of the towing hook. CONTENT

[0003] Therefore, the present application provides a vehicle body structure to solve the problem of low strength of the installation position of the towing hook on the vehicle body in the prior art.

[0004] The present application provides a vehicle body structure, comprising a front girder and a crash beam, wherein the front girder has a first cavity; the crash beam is located on one side of the front girder, and a towing hook nut is installed on the crash beam; wherein a connecting bracket is arranged in the first cavity, one end of the connecting bracket is fixedly connected with the towing hook nut along the height direction of the vehicle body structure, and the other end of the connecting bracket is fixedly connected with the cavity wall of the first cavity.

[0005] In a possible implementation, the connecting bracket comprises a body part; the body part has a recessed part recessed towards one side close to the bottom wall of the first cavity, and one end of the towing hook nut is located in the recessed part and fixedly connected with the recessed part.

[0006] In a possible implementation, the connecting bracket comprises a first connecting part; the first connecting part is connected to one side of the body part along the height direction of the vehicle body structure, and the first connecting part is fixedly connected with the bottom wall of the first cavity.

[0007] In a possible implementation, the connecting bracket comprises a second connecting part; the second connecting part is connected to at least one side of the body part along the width direction of the vehicle body structure, and the second connecting part is fixedly connected with the side wall of the first cavity.

[0008] In a possible implementation, a fixing bracket is arranged in the first cavity; the fixing bracket has an accommodation space, at least part of the structure of the connecting bracket is located in the accommodation space, and the fixing bracket is connected with the cavity wall of the first cavity.

[0009] In a possible implementation, the fixing support comprises a main body part, a first fixing part and a second fixing part, the main body part, the first fixing part and the second fixing part enclosing the accommodation space; along the height direction of the vehicle body structure, the first fixing part is connected to one side of the main body part, and the first fixing part is connected to the bottom wall of the first cavity; along the width direction of the vehicle body structure, the second fixing part is connected to at least one side of the main body part, and the second fixing part is connected to the side wall of the first cavity.

[0010] In a possible implementation, the anti-collision beam comprises a first beam body and a second beam body arranged oppositely along the height direction of the vehicle body structure, and a third beam body and a fourth beam body arranged oppositely along the length direction of the vehicle body structure; the first beam body, the second beam body, the third beam body and the fourth beam body are connected to each other to enclose a second cavity.

[0011] In a possible implementation, along the width direction of the vehicle body structure, one side of the front main beam is connected with a lower bending beam connecting plate, both ends of the lower bending beam connecting plate along the height direction of the vehicle body structure are connected with an upper bending beam and a lower bending beam respectively; the anti-collision beam is connected with the lower bending beam connecting plate through a first fastener.

[0012] In a possible implementation, one side of the front main beam away from the lower bending beam connecting plate is provided with a mounting support; the mounting support is fixedly connected with the front main beam, and the mounting support is connected with the anti-collision beam through a second fastener.

[0013] In a possible implementation, the vehicle body structure further comprises a protection rod; the protection rod is located at one side of the anti-collision beam and is connected with the anti-collision beam through a connecting piece.

[0014] The embodiment of the present application provides a vehicle body structure, which comprises a front main beam and an anti-collision beam, the front main beam has a first cavity, the anti-collision beam is located at one side of the front main beam, and the anti-collision beam is provided with a towing hook nut, wherein a connecting support is arranged in the first cavity, one end of the connecting support is fixedly connected with the towing hook nut along the height direction of the vehicle body structure, and the other end of the connecting support is fixedly connected with the cavity wall of the first cavity. The towing hook nut is used for mounting a towing hook, and in the embodiment of the present application, the towing hook nut is connected with the front main beam through the connecting support. When the vehicle is towed, the force acting on the towing hook nut can be transmitted to the front main beam through the connecting support, so that the position of the anti-collision beam where the towing hook nut is arranged can bear a larger load, thereby improving the strength of the mounting position of the towing hook, and further improving the stability and reliability of the towing hook installation, and facilitating the towing of the vehicle by the outside world.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a partial schematic diagram of a vehicle body structure in one embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of a vehicle body structure in one embodiment of the present application;

[0019] Figure 3 This is a partial schematic diagram of a vehicle body structure in another embodiment of the present application;

[0020] Figure 4 This is a partial schematic diagram of a vehicle body structure in another embodiment of the present application;

[0021] Figure 5 This is a partial schematic diagram of a vehicle body structure in another embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of a fixing bracket in one embodiment of the present application;

[0023] Figure 7 This is a schematic diagram of an anti-collision beam in one embodiment of the present application;

[0024] Figure 8 This is a schematic diagram of a protection bar connected to an anti-collision beam through a connecting piece in one embodiment of the present application.

[0025] Reference numerals:

[0026] 1-Front beam;

[0027] 11- first cavity;

[0028] 2-anti-collision beam;

[0029] 21- first beam;

[0030] 22- second beam;

[0031] 23- the third beam;

[0032] 24- fourth beam;

[0033] 25- second cavity;

[0034] 3-traction hook nut;

[0035] 4-Connect the bracket;

[0036] 41 - body part;

[0037] 411 - recessed part;

[0038] 42 - first connecting part;

[0039] 43 - second connecting part;

[0040] 5 - fixing support;

[0041] 51 - accommodating space;

[0042] 52 - body part;

[0043] 53 - first fixing part;

[0044] 54 - second fixing part;

[0045] 61 - lower bent beam connecting plate;

[0046] 62 - lower bent beam;

[0047] 63 - upper bent beam support plate;

[0048] 64 - upper bent beam;

[0049] 7 - mounting support;

[0050] 71 - second fastener;

[0051] 8 - guard bar;

[0052] 9 - connecting piece. DETAILED DESCRIPTION

[0053] In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the drawings.

[0054] It should be clear that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0055] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0056] It should be understood that the term "and / or" as used herein merely describes association between associated objects, and it is possible to have three cases, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0057] As shown in Figure 1 The embodiment of the application provides a vehicle body structure, which comprises a front beam 1 and a crash beam 2, the front beam 1 is provided with a first cavity 11, the crash beam 2 is located at one side of the front beam 1, and a towing hook nut 3 is installed on the crash beam 2, wherein a connecting bracket 4 is arranged in the first cavity 11, one end of the connecting bracket 4 is fixedly connected with the towing hook nut 3 along the height direction Z of the vehicle body structure, and the other end of the connecting bracket 4 is fixedly connected with the cavity wall of the first cavity 11.

[0058] The crash beam 2 in the embodiment of the application is a front crash beam of the front part of the vehicle body. The crash beam 2 is an important component in the vehicle body, and when the vehicle is subjected to a collision, the crash beam 2 can effectively decompose and transmit the impact force to the front beam 1 and other structures, so as to improve the safety of the vehicle. The crash beam 2 can be provided with a mounting hole, the towing hook nut 3 is fixed on the crash beam 2 through the mounting hole, and the towing hook nut 3 can be welded with the crash beam 2, so as to improve the stability of the installation of the towing hook nut 3. The towing hook nut 3 can be connected with a towing hook (not shown in the figure), so as to facilitate the towing of the vehicle by the outside world. The connecting bracket 4 is accommodated in the first cavity 11 of the front beam 1 and is fixedly connected with the front beam 1 (i.e., fixedly connected with the cavity wall of the cavity), for example, the connecting bracket 4 can be welded with the front beam 1, so as to improve the stability of the arrangement of the connecting bracket 4 in the first cavity 11. One end of the towing hook nut 3 can be located in the first cavity 11 and fixedly connected with the connecting bracket 4, so as to realize the connection between the towing hook nut 3 and the front beam 1.

[0059] In the embodiment of the application, the towing hook nut 3 is connected with the front beam 1 through the connecting bracket 4, when the vehicle is towed, the force acting on the towing hook nut 3 can be transmitted to the front beam 1 through the connecting bracket 4, so that the position where the towing hook nut 3 is arranged on the crash beam 2 can bear a larger load, thereby improving the strength of the towing hook installation position, and further improving the stability and reliability of the towing hook installation, so as to facilitate the towing of the vehicle by the outside world.

[0060] As shown in Figure 2As shown, the vehicle body structure in the embodiment of the present application includes two front beams 1 described above, and the two front beams 1 are symmetrically arranged along the length direction X of the vehicle body structure (i.e., the vehicle body structure has a left front beam and a right front beam). The towing hook nut 3 described above can be arranged at the end of the bumper beam 2, and the first cavity 11 of the front beam 1 corresponding to the position of the towing hook nut 3 is provided with the connecting bracket 4 described above. For example, along the width direction Y of the vehicle body structure, the towing hook nut 3 is arranged at the left end of the bumper beam 2, and the first cavity 11 of the front beam 1 on the left side of the vehicle body structure is provided with the connecting bracket 4 described above.

[0061] As shown in Figure 3 and Figure 4 In a possible implementation, the connecting bracket 4 includes a body portion 41, and the body portion 41 has a recessed portion 411 recessed toward one side of the bottom wall of the first cavity 11. One end of the towing hook nut 3 is located in the recessed portion 411 and fixedly connected with the recessed portion 411.

[0062] The body portion 41 can stand in the first cavity 11, and the recessed portion 411 is located at the upper end of the body portion 41. The end of the towing hook nut 3 can be welded with the recessed portion 411. Specifically, the recessed portion 411 can be a U-shaped groove to match the shape of the end of the towing hook nut 3, thereby improving the stability of the connection between the towing hook nut 3 and the connecting bracket 4. By arranging the recessed portion 411, a stable and reliable connection relationship between the connecting bracket 4 and the towing hook nut 3 is achieved, thereby improving the stability of the connection between the towing hook nut 3 and the front beam 1.

[0063] As shown in Figure 3 and Figure 5 In a possible implementation, the connecting bracket 4 includes a first connecting portion 42, which is connected to one side of the body portion 41 along the height direction Z of the vehicle body structure, and the first connecting portion 42 is fixedly connected with the bottom wall of the first cavity 11.

[0064] The body portion 41 and the first connecting portion 42 can be connected to form a structure similar to an "L" shape. By arranging the first connecting portion 42, the contact area between the connecting bracket 4 and the front beam 1 is increased, thereby improving the stability and reliability of the connection between the connecting bracket 4 and the front beam 1. In turn, the force acting on the towing hook nut 3 can be stably transmitted to the front beam 1 through the connecting bracket 4, so as to improve the strength of the towing hook mounting position.

[0065] As shown in Figure 5 In a possible implementation, the connecting bracket 4 includes a second connecting portion 43, which is connected to at least one side of the body portion 41 along the width direction Y of the vehicle body structure, and the second connecting portion 43 is fixedly connected with the side wall of the first cavity 11.

[0066] Among them, the connecting bracket 4 may include a second connecting portion 43. The second connecting portion 43 and the main body portion 41 may be connected into a structure approximately in the shape of an "L". Specifically, along the width direction Y of the vehicle body structure, the second connecting portion 43 may be connected to the left side of the main body portion 41 and connected to the left side wall of the first cavity 11. Alternatively, the second connecting portion 43 may be connected to the right side of the main body portion 41 and connected to the right side wall of the first cavity 11.

[0067] The connecting bracket 4 may also include two second connecting portions 43. The two second connecting portions 43 and the main body portion 41 may be connected into a structure approximately in the shape of a "匚". Specifically, along the width direction Y of the vehicle body structure, the two second connecting portions 43 are respectively connected to both sides of the main body portion 41 and respectively connected to the left side wall and the right side wall of the first cavity 11.

[0068] By providing the second connecting portion 43, the contact area between the connecting bracket 4 and the front beam 1 is increased, thereby improving the stability and reliability of the connection between the connecting bracket 4 and the front beam 1. Furthermore, the force received by the towing hook nut 3 can be stably transmitted to the front beam 1 through the connecting bracket 4, so as to improve the strength of the towing hook installation position.

[0069] The above-mentioned main body portion 41, the first connecting portion 42 and the second connecting portion 43 may be integrally formed to improve the structural stability of the connecting bracket 4 itself. In some embodiments, the first connecting portion 42 may be directly connected to the bottom wall of the first cavity 11, and the second connecting portion 43 may be directly connected to the side wall of the first cavity 11. In some other embodiments, the first connecting portion 42 and the second connecting portion 43 may be connected to the cavity wall of the first cavity 11 through a fixing bracket 5. The structure of the fixing bracket 5 will be specifically described below.

[0070] As Figure 3 、 Figure 5 and Figure 6 shown, in a possible implementation manner, a fixing bracket 5 is provided in the first cavity 11. The fixing bracket 5 has an accommodation space 51. At least part of the structure of the connecting bracket 4 is located in the accommodation space 51 and is connected to the cavity wall of the first cavity 11 through the fixing bracket 5.

[0071] The fixing bracket 5 is fixedly connected to the front beam 1, such as by welding. Part of the structure of the connecting bracket 4 may be housed in the accommodation space 51 of the fixing bracket 5. For example, the lower end of the connecting bracket 4 is housed in the accommodation space 51; or, the entire structure of the connecting bracket 4 may also be housed in the accommodation space 51. The connecting bracket 4 is fixedly connected to the fixing bracket 5, for example, by a fastener, so as to be connected to the front beam 1 through the fixing bracket 5.

[0072] When the vehicle is being towed, the towing hook nut 3, the connecting bracket 4 and the front beam 1 all need to bear a large load, and at this time the connecting position of the connecting bracket 4 and the front beam 1 needs to have sufficient strength. The embodiment of the application improves the strength of the connecting position of the connecting bracket 4 and the front beam 1 by arranging the fixing bracket 5, thereby improving the stability and reliability of the connection of the connecting bracket 4 and the front beam 1, and reducing the possibility of bending deformation of the connecting position of the two.

[0073] As shown in Figures 3 to 6 , in a possible implementation, the fixing bracket 5 includes a main body part 52, a first fixing part 53 and a second fixing part 54, the main body part 52, the first fixing part 53 and the second fixing part 54 enclose an accommodation space 51, along the height direction Z of the vehicle body structure, the first fixing part 53 is connected to one side of the main body part 52, the first fixing part 53 is connected to the bottom wall of the first cavity 11, along the width direction Y of the vehicle body structure, the second fixing part 54 is connected to at least one side of the main body part 52, and the second fixing part 54 is connected to the side wall of the first cavity 11.

[0074] As shown in Figure 4 , the main body part 52 of the fixing bracket 5 can be fixedly connected with the body part 41 of the connecting bracket 4. As shown in Figure 5 , one end of the first fixing part 53 of the fixing bracket 5 is connected to the bottom wall of the first cavity 11, and the other end is connected to the first connecting part 42 of the connecting bracket 4. The second fixing part 54 of the fixing bracket 5 can be arranged correspondingly with the second connecting part 43 of the connecting bracket 4, for example, when the connecting bracket 4 has one second connecting part 43, the fixing bracket 5 can have one second fixing part 54, one end of the second fixing part 54 is connected with the second connecting part 43, and the other end is connected with the side wall of the first cavity 11. Correspondingly, as shown in Figure 5 , when the connecting bracket 4 has two second connecting parts 43, the fixing bracket 5 can have two second fixing parts 54, and each second connecting part 43 is connected with the side wall of the first cavity 11 through the corresponding second fixing part 54.

[0075] The above design enables the connecting bracket 4 to be stably and reliably connected with the front beam 1 through the fixing bracket 5, thereby meeting the strength requirement of the connecting position of the connecting bracket 4 and the front beam 1, and reducing the possibility of bending deformation of the connecting position of the two.

[0076] As shown in Figure 7 , in a possible implementation, the anti-collision beam 2 includes a first beam body 21 and a second beam body 22 arranged opposite to each other along the height direction Z of the vehicle body structure, and a third beam body 23 and a fourth beam body 24 arranged opposite to each other along the length direction X of the vehicle body structure, the first beam body 21, the second beam body 22, the third beam body 23 and the fourth beam body 24 are connected with each other to enclose a second cavity 25.

[0077] The anti-collision beam 2 in the embodiments of the present application can be made of a metal profile or a metal alloy profile, for example, an aluminum profile or an aluminum alloy profile. The cross-sectional shape of the profile can be a closed ring structure, for example, the first beam body 21, the second beam body 22, the third beam body 23, and the fourth beam body 24 can enclose a rectangular cavity. This design makes the anti-collision beam 2 have greater torsional stiffness, reduces the possibility of bending deformation of the anti-collision beam 2 when the vehicle is subjected to a frontal impact, and improves the reliability of the anti-collision beam 2. On the other hand, the length of the anti-collision beam used in different vehicle models is not required. Compared with the related art scheme of manufacturing the anti-collision beam by using a stamping process, the embodiments of the present application only need to change the length of the profile during the production of the anti-collision beam 2, so that the anti-collision beam 2 can be adapted to different vehicle models, without the need to design different anti-collision beam stamping dies for each vehicle model, thereby reducing the overall production cost of the vehicle and improving the overall production efficiency of the vehicle body structure.

[0078] As shown in Figures 1 to 3 In a possible implementation, along the width direction Y of the vehicle body structure, one side of the front beam 1 is connected with a lower beam connecting plate 61, both ends of the lower beam connecting plate 61 along the height direction Z of the vehicle body structure are connected with the upper beam 64 and the lower beam 62 respectively, and the anti-collision beam 2 is connected with the lower beam connecting plate 61 through a first fastener (not shown in the figure).

[0079] The upper beam 64, the lower beam connecting plate 61, and the lower beam 62 can be arranged along the height direction Z of the vehicle body structure, one end of the lower beam connecting plate 61 is connected with the lower beam 62, and the other end can be connected with the upper beam 64 through the upper beam support plate 63. Along the width direction Y of the vehicle body structure, the lower beam connecting plate 61 can be connected at both ends of the lower beam 62, that is, the lower beam 62 can be connected with the corresponding upper beam support plate 63 through the lower beam connecting plates 61 at both ends. As mentioned above, the vehicle body structure includes two front beams 1 (i.e., left and right front beams), and the lower beam connecting plates 61 at both ends of the lower beam 62 are connected with the corresponding front beams 1.

[0080] The first fastener mentioned above can be a bolt. Specifically, corresponding mounting holes are formed on the anti-collision beam 2 and the lower beam connecting plate 61, so that the anti-collision beam 2 can be fixedly connected with the lower beam connecting plate 61 through the bolt, thereby improving the stability and reliability of the installation of the anti-collision beam 2.

[0081] As shown in Figure 1 and Figure 3 In a possible implementation, the side of the front beam 1 away from the lower beam connecting plate 61 is provided with a mounting bracket 7, the mounting bracket 7 is fixedly connected with the front beam 1, and the mounting bracket 7 is connected with the anti-collision beam 2 through a second fastener 71.

[0082] Along the width direction Y of the vehicle body structure, one side of the front beam 1 is connected with the lower bending beam connecting plate 61, and the other side of the front beam 1 is connected with the mounting bracket 7. The crash beam 2 is connected with the mounting bracket 7 through the second fastener 71, and specifically, the second fastener 71 can be a bolt, and the mounting bracket 7 and the crash beam 2 are both provided with corresponding mounting holes, so that the crash beam 2 can be fixedly connected with the mounting bracket 7 through the bolt. By arranging the mounting bracket 7, the connection between the crash beam 2 and the front beam 1 is realized, so that the stability and reliability of the crash beam 2 arranged in the entire vehicle body are improved, and the possibility of the crash beam 2 falling off from the vehicle body when the vehicle is hit is reduced.

[0083] Both of the front beams 1 in the vehicle body structure can be connected with the mounting bracket 7, that is, along the width direction Y of the vehicle body structure, both ends of the crash beam 2 can be connected with the corresponding front beams 1 through the corresponding mounting brackets 7.

[0084] As shown in Figure 2 and Figure 8 In a possible implementation, the vehicle body structure further includes a protection rod 8, which is located on one side of the crash beam 2 and connected with the crash beam 2 through a connecting piece 9.

[0085] The protection rod 8 can extend along the width direction Y of the vehicle body structure. Along the length direction X of the vehicle body structure, the protection rod 8 is located on the side of the crash beam 2 away from the front beam 1, that is, the protection rod 8 is located on the outside of the front end face of the crash beam 2. When the front end of the vehicle collides with a pedestrian, the protection rod 8 can first contact the pedestrian to play a certain protection role for the pedestrian. Along the height direction Z of the vehicle body structure, the protection rod 8 can be located below the crash beam 2, and the connecting piece 9 is arranged between the protection rod 8 and the crash beam 2, and the protection rod 8 is connected with the crash beam 2 through the connecting piece 9.

[0086] By arranging the connecting piece 9, the stability of the connection between the protection rod 8 and the crash beam 2 is improved, so that the stability of the installation of the protection rod 8 in the vehicle body is improved to reliably protect the pedestrian.

[0087] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle body structure characterized by comprising: The utility model relates to a front beam (1) has first cavity (11); The utility model relates to a front beam (1) has first cavity (11); Wherein, the first cavity (11) is provided with the connecting support (4), along the height direction of the vehicle body structure, one end of the connecting support (4) is fixedly connected with the towing hook nut (3), the other end of the connecting support (4) is fixedly connected with the cavity wall of the first cavity (11). The connecting support (4) includes a body portion (41); 2. The vehicle body structure according to claim 1, characterized by The body portion (41) has a recessed portion (411) recessed towards the side close to the bottom wall of the first cavity (11), one end of the towing hook nut (3) is located in the recessed portion (411) and is fixedly connected with the recessed portion (411). The connecting support (4) includes a first connecting portion (42); 3. The vehicle body structure according to claim 2, characterized by Along the height direction of the vehicle body structure, the first connecting portion (42) is connected to one side of the body portion (41), and the first connecting portion (42) is fixedly connected with the bottom wall of the first cavity (11). The connecting support (4) includes a second connecting portion (43); 4. The vehicle body structure according to claim 2, characterized by Along the width direction of the vehicle body structure, the second connecting portion (43) is connected to at least one side of the body portion (41), and the second connecting portion (43) is fixedly connected with the side wall of the first cavity (11). The first cavity (11) is provided with a fixing support (5); 5. The vehicle body structure according to claim 1, characterized by The fixing support (5) has an accommodation space (51), at least part of the structure of the connecting support (4) is located in the accommodation space (51), and the fixing support (5) is connected with the cavity wall of the first cavity (11). The fixing support (5) includes a main body portion (52), a first fixing portion (53), and a second fixing portion (54), the main body portion (52), the first fixing portion (53), and the second fixing portion (54) enclose the accommodation space (51); 6. The vehicle body structure according to claim 5, characterized by Along the height direction of the vehicle body structure, the first fixing portion (53) is connected to one side of the main body portion (52), and the first fixing portion (53) is connected with the bottom wall of the first cavity (11); Along the width direction of the vehicle body structure, the second fixing portion (54) is connected to at least one side of the main body portion (52), and the second fixing portion (54) is connected with the side wall of the first cavity (11). The front beam (1) includes a first beam body (21) and a second beam body (22) arranged opposite along the height direction of the vehicle body structure, and a third beam body (23) and a fourth beam body (24) arranged opposite along the length direction of the vehicle body structure; 7. The vehicle body structure according to any one of claims 1 to 6, characterized by, The first beam body (21), the second beam body (22), the third beam body (23), and the fourth beam body (24) are connected to each other to enclose a second cavity (25). ​ 8. The vehicle body structure according to any one of claims 1 to 6, characterized by A lower bending beam connecting plate (61) is connected to one side of the front beam (1) along the width direction of the vehicle body structure, and two ends of the lower bending beam connecting plate (61) along the height direction of the vehicle body structure are connected to an upper bending beam (64) and a lower bending beam (62) respectively; The anti-collision beam (2) is connected to the lower bending beam connecting plate (61) through a first fastener.

9. The vehicle body structure according to claim 8, characterized by A mounting bracket (7) is arranged on the side of the front beam (1) away from the lower bending beam connecting plate (61); The mounting bracket (7) is fixedly connected to the front beam (1), and the mounting bracket (7) is connected to the anti-collision beam (2) through a second fastener (71).

10. The vehicle body structure according to any one of claims 1 to 6, characterized by The vehicle body structure further comprises a protection rod (8); The protection rod (8) is arranged on one side of the anti-collision beam (2) and connected to the anti-collision beam (2) through a connecting piece (9).

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