Rear bottom guard plate mounting structure and automobile

Abstract

The utility model discloses a rear bottom guard plate installation structure which is used for installing a rear bottom guard plate on a vehicle, the vehicle comprises a vehicle body and a rear auxiliary frame, and the rear portion of the rear bottom guard plate is connected with the vehicle body. The rear auxiliary frame is provided with a left rear vehicle body connecting bolt and a right rear vehicle body connecting bolt, and the front portion of the rear bottom protection plate is fixedly connected with the left rear vehicle body connecting bolt and the right rear vehicle body connecting bolt. The utility model further discloses an automobile which comprises the rear bottom guard plate installation structure. According to the rear bottom protection plate mounting structure and the automobile, it can be guaranteed that the rear bottom protection plate has good mounting stability; meanwhile, the method can be suitable for installation of the plastic bottom protection plate, the risk of pull crack failure of the plastic bottom protection plate can be reduced advantageously, the quality requirement for the plastic bottom protection plate can be lowered advantageously, and cost control is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile chassis structure design, specifically relates to a rear bottom guard plate mounting structure and automobile. BACKGROUND

[0002] The main role of automobile chassis guard plate (abbreviation bottom guard plate) is to protect the chassis from the damage of stone, soil and other objects, and also can reduce the wind resistance, improve the stability and fuel economy of the vehicle. In the automobile chassis structure, the bottom guard plate is usually provided as a plurality of pieces, wherein the rear bottom guard plate refers to a guard plate close to the rear part of the chassis. At present, in the load-bearing body structure with rear subframe, the rear part of the rear bottom guard plate is usually connected with the automobile body-in-white through the mounting bracket, and the part close to the rear subframe in the front part of the rear bottom guard plate is connected with the frame body of the rear subframe through the connecting bracket, so as to ensure that the rear bottom guard plate has good connection stability and prevent the bottom guard plate from shaking to produce noise. This structure can meet the installation and use requirements of the sheet metal structure bottom guard plate, but it is not suitable for the plastic bottom guard plate. This is because the jumping of the rear subframe during the driving of the automobile will have a certain pulling and tearing effect on the rear bottom guard plate, thereby causing the rear bottom guard plate to be pulled and cracked, and if the plastic bottom guard plate is used, the quality requirement of the plastic bottom guard plate is higher, which is not conducive to cost control.

[0003] Therefore, it is necessary to develop and design a new rear bottom guard plate mounting structure and automobile, which can ensure that the rear bottom guard plate has good installation stability, and can be suitable for the installation of the plastic bottom guard plate, can help to reduce the risk of pulling and cracking of the plastic bottom guard plate, can help to reduce the quality requirement of the plastic bottom guard plate, and is conducive to cost control. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at providing a rear bottom guard plate mounting structure and automobile, which can ensure that the rear bottom guard plate has good installation stability, and can be suitable for the installation of the plastic bottom guard plate, can help to reduce the risk of pulling and cracking of the plastic bottom guard plate, can help to reduce the quality requirement of the plastic bottom guard plate, and is conducive to cost control.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a rear bottom guard plate mounting structure is used for the installation of the rear bottom guard plate on a vehicle, the vehicle comprises a vehicle body and a rear subframe, and the rear part of the rear bottom guard plate is connected with the vehicle body;Wherein, the rear subframe is provided with a left rear vehicle body connecting bolt and a right rear vehicle body connecting bolt, and the front part of the rear bottom guard plate is fixedly connected with the left rear vehicle body connecting bolt and the right rear vehicle body connecting bolt respectively.

[0006] Further, the front part of the rear bottom guard plate extends into the rear sub-frame bottom part, and the first and second protruding parts are upwardly protruding from the front part of the rear bottom guard plate, the first protruding part is detachably connected with the left rear body connecting bolt, and the second protruding part is detachably connected with the right rear body connecting bolt.

[0007] Further, the bottom part of the left rear body connecting bolt is coaxially fixed with the first adapter rod, and the first protruding part is fixedly connected with the first adapter rod through the first fastener; the bottom part of the right rear body connecting bolt is coaxially fixed with the second adapter rod, and the second protruding part is fixedly connected with the second adapter rod through the second fastener.

[0008] Further, the first and second protruding parts are columnar structures, and the first and second protruding parts are both provided with hollow cavities with open bottoms.

[0009] Further, the first protruding part is coaxial with the axis of the left rear body connecting bolt, and the second protruding part is coaxial with the axis of the right rear body connecting bolt.

[0010] Further, the outer wall surfaces of the first and second protruding parts are respectively provided with a plurality of reinforcing ribs along the circumferences.

[0011] Further, the first adapter rod is threadedly connected with the left rear body connecting bolt, and the second adapter rod is threadedly connected with the right rear body connecting bolt.

[0012] Further, the first and second protruding parts and the rear bottom guard plate are an integral structure.

[0013] Further, the rear edge of the rear bottom guard plate is detachably connected with a plurality of mounting brackets, and each mounting bracket is fixedly connected with the rear crash beam of the vehicle body.

[0014] The application further provides an automobile comprising the rear bottom guard plate mounting structure.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] The rear bottom guard plate mounting structure and the automobile provided by the utility model can guarantee that the rear bottom guard plate has good mounting stability; meanwhile, the mounting structure can be suitable for the installation of the plastic bottom guard plate, can help reduce the risk of the plastic bottom guard plate being pulled apart, can help reduce the quality requirement for the plastic bottom guard plate, and is beneficial to cost control; specifically, the rear part of the rear bottom guard plate is connected with the vehicle body, and the front part is fixedly connected with the left rear vehicle body connecting bolt and the right rear vehicle body connecting bolt of the rear subframe, so that a stable mounting structure is formed, the mounting stability of the rear bottom guard plate can be effectively guaranteed, and noise caused by the shaking of the bottom guard plate during the operation of the automobile can be prevented; meanwhile, since the left rear vehicle body connecting bolt and the right rear vehicle body connecting bolt are connected with the vehicle body, the bounce of the rear subframe cannot be transmitted to the rear bottom guard plate, so that the risk of the rear bottom guard plate being pulled apart can be effectively reduced, the installation and use requirements of the plastic bottom guard plate can be met, the quality requirement for the plastic bottom guard plate is reduced to a certain extent, and the production cost is reduced.

[0017] Other advantages, objects, and features of the present utility model will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following specification or can be learned by practice of the present utility model. The objects and other advantages of the present utility model can be realized and obtained by means of the embodiments described in the following description. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structural schematic view of an embodiment of the present utility model

[0019] Figure 2 It is a sectional view of the left rear vehicle body connecting bolt part of an embodiment of the present utility model

[0020] Figure 3 It is a sectional view of the right rear vehicle body connecting bolt part of an embodiment of the present utility model

[0021] Figure 4 It is an axonometric view of the rear bottom guard plate of an embodiment of the present utility model

[0022] The reference signs are as follows: 1-rear bottom guard plate; 101-first protruding part; 101a-hollow cavity; 101b-stiffener; 102-second protruding part; 2-rear subframe; 201-left rear vehicle body connecting bolt; 201a-first adapter rod; 201b-first fastener; 202-right rear vehicle body connecting bolt; 202a-second adapter rod; 202b-second fastener; 3-mounting support; 4-rear anti-collision beam. DETAILED DESCRIPTION

[0023] The implementation manners of the present application are described below through specific examples. Other advantages and functions of the present application can be easily understood by those skilled in the art from the disclosure of the present application. The present application can also be implemented or applied through different specific implementation manners, and various modifications or changes can be made to the details in the present application based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the drawings provided in the following examples are only used to illustrate the basic concept of the present application, and the features in the following examples and embodiments can be combined with each other without conflict.

[0024] Please refer to Figures 1-4 In the embodiment, a rear bottom guard plate mounting structure is disclosed, which is used for mounting the rear bottom guard plate on a vehicle, the vehicle comprising a vehicle body and a rear subframe 2, the rear part of the rear bottom guard plate 1 being connected with the vehicle body; wherein the rear subframe 2 is provided with a left rear vehicle body connecting bolt 201 and a right rear vehicle body connecting bolt 202, and the front part of the rear bottom guard plate 1 is fixedly connected with the left rear vehicle body connecting bolt 201 and the right rear vehicle body connecting bolt 202 respectively; here, the front part refers to the part of the rear bottom guard plate 1 close to the front side of the vehicle, and the rear part refers to the part of the rear bottom guard plate 1 close to the rear side of the vehicle; wherein the form of connection between the rear part of the rear bottom guard plate 1 and the vehicle body is not limited, and generally the rear part of the rear bottom guard plate 1 is fixedly connected with the vehicle body through a connecting bracket; of course, it can be understood that the left rear vehicle body connecting bolt 201 and the right rear vehicle body connecting bolt 202 are respectively arranged to pass through the bushings in the rear part of the rear subframe 2 to fixedly connect the rear subframe 2 to the vehicle body chassis, and this part is the connection structure between the existing rear subframe 2 and the vehicle body, which will not be described here; the left rear vehicle body connecting bolt 201 and the right rear vehicle body connecting bolt 202 provide two mounting points for the front part of the rear bottom guard plate 1, and in combination with the structure form of the connection between the rear part of the rear bottom guard plate 1 and the vehicle body, the stability of the overall mounting of the rear bottom guard plate 1 is ensured; the above rear bottom guard plate mounting structure can ensure that the rear bottom guard plate 1 has good mounting stability; at the same time, it can be applied to the mounting of a plastic bottom guard plate, can help to reduce the risk of cracking failure of the plastic bottom guard plate, can help to reduce the quality requirements for the plastic bottom guard plate, and is conducive to cost control; specifically, in the present rear bottom guard plate mounting structure, the rear part of the rear bottom guard plate 1 is connected with the vehicle body, and the front part is fixedly connected with the left rear vehicle body connecting bolt 201 and the right rear vehicle body connecting bolt 202 of the rear subframe 2, so as to form a stable mounting structure, which can effectively ensure the mounting stability of the rear bottom guard plate 1 and prevent the bottom guard plate from shaking and producing noise during the operation of the vehicle; at the same time, since the left rear vehicle body connecting bolt 201 and the right rear vehicle body connecting bolt 202 are connected with the vehicle body, the bounce of the rear subframe 2 will not be transmitted to the rear bottom guard plate 1, so as to effectively reduce the risk of cracking failure of the rear bottom guard plate 1, to help meet the installation and use requirements of the plastic bottom guard plate, and to reduce the quality requirements for the plastic bottom guard plate to a certain extent and reduce the production cost.

[0025] In the embodiment, the front part of the rear bottom guard plate 1 extends into the bottom part of the rear subframe 2, and the first protruding part 101 and the second protruding part 102 are arranged on the front part of the rear bottom guard plate 1 and protrude upward, the first protruding part 101 is detachably connected with the left rear body connecting bolt 201, and the second protruding part 102 is detachably connected with the right rear body connecting bolt 202; the "protrude upward" mentioned here refers to upward in the vertical direction; by extending the front part of the rear bottom guard plate 1 into the bottom part of the rear subframe 2, good protection for the rear part of the vehicle body chassis is formed; the first protruding part 101 and the second protruding part 102 are simple and reliable in structure, are reasonably arranged, have high space utilization, and are beneficial to ensuring reliable connection with the body connecting bolts; the detachable connection is generally bolt connection; the detachable connection is beneficial to ensuring the assembly and maintenance convenience of the overall structure.

[0026] In the embodiment, the bottom part of the left rear body connecting bolt 201 is coaxially and fixedly provided with a first adapter rod 201a, the first protruding part 101 is fixedly connected with the first adapter rod 201a through a first fastener 201b, here, the first adapter rod 201a is screw-fixed with the left rear body connecting bolt 201, of course, in other embodiments, it can also be welded fixed or adopt an integrated structure; the bottom part of the right rear body connecting bolt 202 is coaxially and fixedly provided with a second adapter rod 202a, the second protruding part 102 is fixedly connected with the second adapter rod 202a through a second fastener 202b, here, the second adapter rod 202a is screw-fixed with the right rear body connecting bolt 202, of course, in other embodiments, it can also be welded fixed or adopt an integrated structure; here, the first fastener 201b and the second fastener 202b are both connecting bolts; by arranging the first adapter rod 201a and the second adapter rod 202a, the height of the first protruding part 101 and the second protruding part 102 is reduced, the space utilization is improved, and the arrangement difficulty is reduced; by using the fastener to complete the connection, the connection reliability and the connection convenience are ensured.

[0027] In the embodiment, the first protruding part 101 and the second protruding part 102 are both columnar structures, and the first protruding part 101 and the second protruding part 102 are both provided with a bottom-opened hollow cavity 101a; more specifically, the first protruding part 101 and the second protruding part 102 both adopt a structure similar to a cylinder; this structure design is simple, and is beneficial to processing and molding; at the same time, the structure strength of the protruding part is good, and the connection reliability is ensured; at the same time, the bottom-opened hollow cavity 101a is arranged, and the first fastener 201b and the second fastener 202b are arranged and installed.

[0028] In the embodiment, the first protruding part 101 is coaxial with the axis of the left rear body connecting bolt 201, and the second protruding part 102 is coaxial with the axis of the right rear body connecting bolt 202; the coaxial arrangement is conducive to improving the assembly property and reducing the influence of assembly error.

[0029] In the embodiment, the outer wall surface of the first protruding part 101 and the second protruding part 102 is respectively provided with a plurality of reinforcing ribs 101b along the circumference; the structural strength of the first protruding part 101 and the second protruding part 102 is improved through the plurality of reinforcing ribs 101b, thereby further improving the structural reliability of the connecting part.

[0030] In the embodiment, the first adapter rod 201a is threadedly connected with the left rear body connecting bolt 201, and the second adapter rod 202a is threadedly connected with the right rear body connecting bolt 202; more specifically, the cross section of the first adapter rod 201a and the second adapter rod 202a is hexagonal, and the first adapter rod 201a and the second adapter rod 202a can be directly screwed with the corresponding body connecting bolt during installation; the threaded connection is conducive to ensuring the assembly property of the overall structure and does not affect the assembly of the original rear subframe and the body.

[0031] In the embodiment, the first protruding part 101, the second protruding part 102 and the rear bottom guard plate 1 are of an integrated structure, and more specifically, the first protruding part 101, the second protruding part 102 and the rear bottom guard plate 1 are of an integrated injection molding structure; the integrated structure has good overall structural strength.

[0032] In the embodiment, the rear edge of the rear bottom guard plate 1 is detachably connected with a plurality of mounting brackets 3, and each mounting bracket 3 is fixedly connected with the rear crash beam 4 of the body; the mounting bracket 3 is a sheet metal bracket, and the two ends of the sheet metal bracket are fixed with the rear bottom guard plate 1 and the rear crash beam 4 through bolts; the plurality of mounting brackets 3 are detachably connected, and have high connection stability and installation convenience.

[0033] The embodiment also discloses an automobile comprising the rear bottom guard plate mounting structure, and the rear bottom guard plate of the automobile has good mounting stability and is conducive to cost control of the automobile.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application rather than limit the present application, and although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A rear underpan mounting arrangement for mounting of a rear underpan on a vehicle, the vehicle comprising a vehicle body and a rear subframe (2), characterized in that: The rear part of the rear bottom guard (1) is connected with the vehicle body; The rear part of the rear bottom guard (1) is connected with the vehicle body; 2. The rear underguard mounting structure according to claim 1, characterized by: The front part of the rear bottom guard (1) extends into the bottom part of the rear sub-frame (2), and the first protruding part (101) and the second protruding part (102) are arranged on the front part of the rear bottom guard (1) and protrude upward, the first protruding part (101) is detachably connected with the left rear vehicle body connecting bolt (201), and the second protruding part (102) is detachably connected with the right rear vehicle body connecting bolt (202).

3. The rear underguard mounting structure according to claim 2, characterized by: The bottom part of the left rear vehicle body connecting bolt (201) is coaxially fixed with the first adapter rod (201a), and the first protruding part (101) is fixedly connected with the first adapter rod (201a) through the first fastener (201b). The bottom part of the right rear vehicle body connecting bolt (202) is coaxially fixed with the second adapter rod (202a), and the second protruding part (102) is fixedly connected with the second adapter rod (202a) through the second fastener (202b).

4. The rear underguard mounting structure according to claim 2, characterized by: The first protruding part (101) and the second protruding part (102) are both columnar structures, and the first protruding part (101) and the second protruding part (102) are both provided with a hollow cavity (101a) with an open bottom part.

5. The rear underguard mounting structure according to claim 2, characterized by: The first protruding part (101) is coaxial with the axis of the left rear vehicle body connecting bolt (201), and the second protruding part (102) is coaxial with the axis of the right rear vehicle body connecting bolt (202).

6. The rear underguard mounting structure according to claim 2, characterized by: The outer wall surface of the first protruding part (101) and the second protruding part (102) is respectively provided with a plurality of reinforcing ribs (101b) in the circumferential direction.

7. The rear underguard mounting structure according to claim 3, characterized by: The first adapter rod (201a) is threadedly connected with the left rear vehicle body connecting bolt (201), and the second adapter rod (202a) is threadedly connected with the right rear vehicle body connecting bolt (202).

8. The rear underguard mounting structure according to claim 2, characterized by: The first protruding part (101), the second protruding part (102) and the rear bottom guard (1) are an integral structure.

9. The rear floor pan mounting arrangement of claim 1, wherein: A plurality of mounting brackets (3) are detachably connected to the rear edge of the rear bottom guard (1), and each mounting bracket (3) is fixedly connected with the rear anti-collision beam (4) of the vehicle body.

10. An automobile comprising the rear bottom guard mounting structure according to any one of claims 1-9.

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