Auxiliary frame bottom guard plate, auxiliary frame assembly and vehicle

Abstract

The utility model relates to the field of vehicles, aims to solve the problems of poor universality and high development cost of a known auxiliary frame bottom guard plate, and provides an auxiliary frame bottom guard plate, an auxiliary frame assembly and a vehicle. The auxiliary frame bottom protection plate is used for being connected to the bottom of an auxiliary frame of the vehicle. The auxiliary frame bottom guard plate comprises a main plate body and a plurality of connecting parts, and the connecting parts are distributed on the main plate body at intervals. Each connecting part is provided with a hole group, and each hole group comprises a first connecting hole and a second connecting hole; wherein the first connecting hole is constructed to be suitable for being connected with a first auxiliary frame, and the second connecting hole is constructed to be suitable for being connected with a second auxiliary frame. The auxiliary frame bottom protection plate has the beneficial effects that the auxiliary frame bottom protection plate can be suitable for different auxiliary frames, and the development cost is saved.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and more particularly, to a subframe bottom guard plate, a subframe assembly, and a vehicle. Background Art

[0002] The subframe bottom guard plate is a plate-like structure connected to the bottom of the subframe. In the known art, in order to adapt to subframes of different shapes or sizes, it is often necessary to match different subframe bottom guard plates, which results in a high development cost of the subframe bottom guard plate. Summary of the Utility Model

[0003] The present application provides a subframe bottom guard plate, a subframe assembly, and a vehicle to solve the problems of poor versatility and high development cost of the known subframe bottom guard plate.

[0004] In a first aspect, the present application provides a subframe bottom guard plate for connecting to the subframe of a vehicle. The subframe bottom guard plate includes a main board body and a plurality of connecting portions, and the plurality of connecting portions are distributed on the main board body at intervals from each other. Each connecting portion is respectively provided with a set of holes, and each set of holes respectively includes a plurality of different connecting holes; wherein, the plurality of connecting holes are configured to be adapted to connect with a variety of different subframes.

[0005] The subframe bottom guard plate in the present application respectively adapts and connects a variety of different subframes through the different connecting holes of each set of holes, has better versatility, and does not need to design subframe bottom guard plates for a variety of different subframes respectively, saving design and manufacturing costs.

[0006] In a possible implementation manner, the plurality of different connecting holes at least include a first connecting hole and a second connecting hole; the variety of different subframes at least include a first type of subframe and a second type of subframe.

[0007] In a possible implementation manner, at least part of the plurality of connecting portions are first connecting portions; the first connecting portion includes a cup-shaped portion recessed from the main board body toward the side close to the subframe, and the set of holes is provided on the bottom wall of the cup-shaped portion; and / or, at least part of the plurality of connecting portions are second connecting portions; the second connecting portion includes two cup-shaped portions recessed from the main board body toward the side close to the subframe, the first connecting hole of the set of holes is provided on the bottom wall of one of the cup-shaped portions, and the second connecting hole of the set of holes is provided on the bottom wall of the other cup-shaped portion.

[0008] In a possible implementation manner, the subframe bottom guard plate further includes a plurality of common connecting portions, and the common connecting portions are configured to be adapted to connect with the first type of subframe and the second type of subframe. The plurality of common connecting portions and the plurality of connecting portions are sequentially distributed at intervals along the outer periphery of the main board body.

[0009] In a possible implementation, at least one of the plurality of common connection parts includes a cup-shaped part that is concave from the main board body toward the side close to the subframe. The subframe bottom guard plate further includes a cover plate that covers the opening of the cup-shaped part, and the cover plate is coplanar with the main board body.

[0010] In a possible implementation, the cup-shaped part of the common connection part includes a bottom wall and a surrounding wall, and a clamping groove is provided on the surrounding wall. The cover plate includes a covering part and a clamping hook; the covering part covers the opening of the cup-shaped part, and the clamping hook is clamped in the clamping groove.

[0011] In a possible implementation, the included angle between one side wall of the surrounding wall and the bottom wall is greater than or equal to 135°.

[0012] In a second aspect, the present application provides a subframe assembly, which includes a subframe, a plurality of connection structures, and the aforementioned subframe bottom guard plate. The subframe is one of a variety of subframes. The subframe bottom guard plate is provided below the subframe. Wherein, when the subframe is one of a variety of subframes, the plurality of connection structures respectively connect the subframe bottom guard plate to this type of subframe through the corresponding connection holes of a plurality of hole groups.

[0013] In a possible implementation, some of the plurality of connection structures are snap-fasteners. The subframe includes a first plate part, the first plate part is superposed with the corresponding connection part, and they are clamped with each other through the snap-fasteners; and / or, some of the plurality of connection structures are locking screws. The subframe includes a second plate part, the second plate part is superposed with the corresponding connection part, and they are tightly connected with each other through the locking screws; and / or, some of the plurality of connection structures include an L-shaped bracket, a locking bolt, and a locking screw. The L-shaped bracket plate includes a first side plate and a second side plate; the subframe includes a third plate part, the third plate part is perpendicular to the plate surface of the subframe bottom guard plate, the first side plate is superposed with the corresponding connection part and is tightly connected through the locking bolt, and the second side plate is superposed with the third plate part and is tightly connected through the locking screw.

[0014] In a possible implementation, the end of the snap-fastener close to the subframe is spaced from the subframe.

[0015] In a third aspect, the present application provides a vehicle, which includes the aforementioned subframe assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 Shows a vehicle according to an embodiment of the present application;

[0018] Figure 2 This is a top view of the subframe assembly in this embodiment, where the subframe is the first type of subframe;

[0019] Figure 3 is Figure 2 the bottom view of the subframe assembly;

[0020] Figure 4 This is a top view of the subframe assembly in this embodiment, where the subframe is the second type of subframe;

[0021] Figure 5 is Figure 4 the bottom view of the subframe assembly;

[0022] Figure 6 This is a three-dimensional view of the subframe bottom guard plate in this embodiment;

[0023] Figure 7 This is another three-dimensional view of the subframe bottom guard plate in this embodiment;

[0024] Figure 8 is Figure 6 the three-dimensional view of the subframe bottom guard plate with a cover plate installed;

[0025] Figure 9 is Figure 8 the sectional view along the G-G line;

[0026] Figure 10 is Figure 3 the sectional view of the subframe assembly along the B-B line;

[0027] Figure 11 is Figure 3 the sectional view of the subframe assembly along the A-A line;

[0028] Figure 12 is Figure 3 the sectional view of the subframe assembly along the C-C line;

[0029] Figure 13 is Figure 5 the sectional view of the subframe assembly along the E-E line;

[0030] Figure 14 is Figure 5 the sectional view of the subframe assembly along the D-D line;

[0031] Figure 15 is Figure 5 the sectional view of the subframe assembly along the F-F line;

[0032] Figure 16 is Figure 5 the sectional view along the K-K line.

[0033] Description of main component symbols:

[0034] Vehicle 100

[0035] Subframe assembly 110

[0036] Subframes 111, 111a, 111b

[0037] First plate part 1111

[0038] Second plate part 1112

[0039] Third plate part 1113

[0040] Subframe bottom guard plate 112

[0041] Connection structure 113

[0042] Snap part 1131

[0043] Locking screw 1132

[0044] Screw seat 1133

[0045] L-shaped bracket 1134

[0046] First side plate 11341

[0047] Second side plate 11342

[0048] Locking bolt 1135

[0049] Connection bracket 1138

[0050] Main board body 10

[0051] Connection part 20

[0052] First connection part 20a

[0053] Second connection part 20b

[0054] Shared connection part 30

[0055] Cover plate 40

[0056] Covering part 41

[0057] Hook 42

[0058] Cup-shaped part 80

[0059] Bottom wall 81

[0060] Enclosing wall 82

[0061] Side wall 821

[0062] Reinforcing rib 91

[0063] Mesh reinforcing rib 92

[0064] Reinforced flanging 93

[0065] Hole group K0

[0066] First connection hole K1

[0067] Second connection hole K2

[0068] Third connection hole K3

[0069] Engaging groove C1 Specific implementation manner

[0070] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0071] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. When an element is considered to be "disposed on" another element, it can be directly disposed on the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the description of the present application herein are only for the purpose of describing specific implementation manners and are not intended to limit the present application. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0073] Some implementation manners of the present application will be described in detail. Without conflict, the following implementation manners and the features in the implementation manners can be combined with each other.

[0074] Embodiment

[0075] Figure 1 A vehicle 100 according to an embodiment of the present application is shown.

[0076] The vehicle 100 can be, for example, a fuel vehicle (such as a gasoline vehicle, a diesel vehicle, etc.), an electric vehicle (such as a pure electric vehicle, a fuel cell vehicle) or a hybrid vehicle.

[0077] The vehicle 100 includes a subframe assembly 110, and the subframe assembly 110 includes a subframe 111 and a subframe bottom guard plate 112 connected to the subframe 111.

[0078] Figure 2 It is a top view of the subframe assembly 110 in this embodiment, Figure 3 It is a bottom view of the subframe assembly 110 in this embodiment.

[0079] Refer to Figure 2 and Figure 3 . In the subframe assembly 110, the subframe bottom guard plate 112 is connected to the bottom of the subframe 111 through a plurality of connection structures 113 (such as screws, etc.) for providing protection for the subframe 111.

[0080] Figure 2 and Figure 3 The subframe 111 in is the first type of subframe 111a, for example, a single-motor type subframe suitable for installing a single-motor vehicle model. At this time, the subframe bottom guard plate 112 is connected to the subframe 111 through the Figure 3 shown connection structures 113.

[0081] Figure 4 and Figure 5 The subframe 111 in is the second type of subframe 111b, for example, a dual-motor type subframe suitable for installing a dual-motor vehicle model. The main difference between it and the single-motor type subframe is that there are certain differences in size. At this time, the subframe bottom guard plate 112 is connected to the subframe 111 through the Figure 5 shown connection structures 113.

[0082] That is, the subframe bottom guard plate 112 in this embodiment is respectively adapted to the aforementioned first type of subframe 111a and the second type of subframe 111b, having better versatility. There is no need to design subframe bottom guard plates 112 for the two types of subframes 111 respectively, saving development costs. The subframe bottom guard plate 112 of this embodiment will be specifically introduced below.

[0083] Of course, the subframe bottom guard plate 112 in this embodiment can also be adaptively set to be adaptable to three or more different types of subframes 111, which is not limited here.

[0084] Figure 6 It is a three-dimensional view of the subframe bottom guard plate 112 in this embodiment, mainly showing the bottom side of the subframe bottom guard plate 112 (i.e., the side facing the bottom of the vehicle 100), Figure 7 It is another three-dimensional view of the subframe bottom guard plate 112 in this embodiment, mainly showing the top side of the subframe bottom guard plate 112 (i.e., the side facing the top of the vehicle 100).

[0085] Refer to Figure 6 andFigure 7 , the subframe bottom guard plate 112 includes a main board body 10 and a plurality of connecting parts 20. The main board body 10 is generally in a flat plate shape, and the plurality of connecting parts 20 are distributed at different positions on the plate surface of the main board body 10 at intervals from each other. Each connecting part 20 is respectively provided with a hole group K0, and each hole group K0 respectively includes a first connecting hole K1 and a second connecting hole K2. The first connecting hole K1 and the second connecting hole K2 of each hole group K0 are in adjacent positions (for example, the distance is less than 3 cm). Among them, the first connecting hole K1 is configured to be adapted to be connected to the first type of subframe 111a through a set of connecting structures 113 (seen in Figure 3 ), and the plurality of second connecting holes K2 are configured to be adapted to be connected to the second type of subframe 111b through another set of connecting structures 113 (seen in Figure 5 ).

[0086] It should be noted that when there are more types of subframes 111 to be adapted, each hole group K0 includes more connecting holes. For example, when three different subframes 111 need to be adapted, each hole group K0 can have three different connecting holes, such as including a first connecting hole K1, a second connecting hole K2, and a third connecting hole.

[0087] Still, the case where the hole group K0 includes two connecting holes (that is, the first connecting block K1 and the second connecting hole K2) will be described below.

[0088] In this embodiment, some of the plurality of connecting parts 20 are first connecting parts 20a. For example Figure 6 and Figure 7 the connecting part 20 at the middle position on the left side of the subframe bottom guard plate 112 in

[0089] is the first connecting part 20a. Among them, the first connecting part 20a includes a cup-shaped part 80 formed by concave inward from the main board body 10 toward the side close to the subframe 111 (visible in Figure 7 ). The cup-shaped part 80 includes a connected surrounding wall 82 and a bottom wall 81. The first connecting hole K1 and the second connecting hole K2 of the hole group K0 are both opened on the bottom wall 81 of the cup-shaped part 80. The cup-shaped part 80 can be formed by stamping or stretching. Optionally, the bottom wall 81 of the cup-shaped part 80 is generally in an oval shape, and the first connecting hole K1 and the second connecting hole K2 of the hole group K0 are opened on the bottom wall 81 at intervals along the length direction of the bottom wall 81. The first connecting hole K1 and the second connecting hole K2 of the hole group K0 share the same cup-shaped part 80, which simplifies the structure and is beneficial to making the first connecting hole K1 and the second connecting hole K2 of the hole group K0 closer to each other to simultaneously adapt to the connecting points with a relatively short distance on the first type of subframe 111a and the second type of subframe 111b.

[0090] In this embodiment, another part of the plurality of connecting parts 20 are second connecting parts 20b. For example Figure 6 andFigure 7 On the upper and lower sides of the subframe bottom guard plate 112 in

[0091] Among them, each second connecting portion 20b includes two cup-shaped portions 80 recessed from the main board body 10 toward the side close to the subframe 111. The first connecting hole K1 of the hole group K0 is opened on the bottom wall 81 of one of the cup-shaped portions 80, and the second connecting hole K2 of the hole group K0 is opened on the bottom wall 81 of the other cup-shaped portion 80. The first connecting hole K1 and the second connecting hole K2 of the hole group K0 are respectively arranged on different cup-shaped portions 80, and their relative positions can be set farther apart to simultaneously adapt to the relatively far connecting points on the first subframe 111a and the second subframe 111b.

[0092] Continuing to refer to Figure 6 and Figure 7 , in this embodiment, the subframe bottom guard plate 112 further includes a plurality of common connecting portions 30, and the common connecting portions 30 are configured to be suitable for connecting to both the first subframe 111a and the second subframe 111b. That is, for the first subframe 111a and the second subframe 111b, connecting points are provided at the positions corresponding to the common connecting portions 30 of both.

[0093] In this embodiment, the plurality of common connecting portions 30 and the plurality of connecting portions 20 (including each first connecting portion 20a and second connecting portion 20b) are spaced apart along the outer periphery of the main board body 10. In this way, the subframe bottom guard plate 112 can be more reliably fastened to the subframe 111.

[0094] Refer to Figure 7 and Figure 8 , at least one of the plurality of common connecting portions 30 includes a cup-shaped portion 80 recessed from the main board body 10 toward the side close to the subframe 111. The subframe bottom guard plate 112 further includes a cover plate 40 (see Figure 8 ), the cover plate 40 covers the opening of the cup-shaped portion 80, and the cover plate 40 is coplanar with the main board body 10. For example Figure 7 and Figure 8 shown in, three common connecting portions 30 on the right side of the subframe bottom guard plate 112 are set as cup-shaped portions 80, and three cover plates 40 respectively cover the openings of the three cup-shaped portions 80. By providing the cover plate 40 to cover the opening of the cup-shaped portion 80, the surface of the subframe bottom guard plate 112 can be made flatter, thereby reducing the wind resistance of the subframe bottom guard plate 112 and increasing the endurance; at the same time, the subframe bottom guard plate 112 can also be made more beautiful.

[0095] Refer to Figure 9, optionally, in the common connection portion 30, the cup-shaped portion 80 includes a bottom wall 81 and a surrounding wall 82, and a clamping groove C1 is formed in the surrounding wall 82. The cover plate 40 includes a covering portion 41 and a hook 42. The covering portion 41 covers the opening of the cup-shaped portion 80, and the hook 42 is clamped in the clamping groove C1. When needed, the cover plate 40 is detachable.

[0096] Refer to again Figure 7 , in this embodiment, between the outer surfaces of the surrounding walls 82 of the cup-shaped portions 80 of each first connection portion 20a, the second connection portion 20b and the common connection portion 30 and the main board body 10 of the subframe bottom guard plate 112, they are all strengthened and connected by the reinforcing ribs 91. At the same time, a criss-cross mesh-shaped reinforcing rib 92 is arranged on one side surface of the main board body 10 close to the subframe 111 to strengthen the structural strength of the main board body 10. Reinforcing flanges 93 are also provided at the edges of some relief holes on the main board body 10 to strengthen the structure.

[0097] Figures 10 - 12 Exemplarily, several connection nodes between the subframe bottom guard plate 112 and the first type of subframe 111a are given. They will be introduced and explained separately below.

[0098] Refer to Figure 10 , the connection structure 113 is a snap-fastener 1131. The subframe 111 includes a first plate portion 1111. The first plate portion 1111 is superposed with the corresponding connection portion 20 and is mutually clamped through the snap-fastener 1131. For example, an opening is formed in the first plate portion 1111, and the snap-fastener 1131 is simultaneously inserted into the first connection hole K1 of the connection portion 20 and the opening of the first plate portion 1111, so as to realize the pre-positioning of the subframe bottom guard plate 112 and the subframe 111.

[0099] Refer to Figure 11 , the connection structure 113 is a locking screw 1132. The subframe 111 includes a second plate portion 1112. The second plate portion 1112 is superposed with the corresponding connection portion 20 and is mutually locked and connected through the locking screw 1132. For example, a screw seat 1133 is arranged on the second plate portion 1112, and the locking screw 1132 passes through the first connection hole K1 and is threadedly connected to the screw seat 1133, thereby locking and connecting the subframe bottom guard plate 112 to the subframe 111.

[0100] Refer to Figure 12, the connecting structure 113 includes an L-shaped bracket 1134, a locking bolt 1135 and a locking screw 1132. The L-shaped bracket 1134 plate includes a first side plate 11341 and a second side plate 11342. The subframe 111 includes a third plate portion 1113, and the third plate portion 1113 is perpendicular to the plate surface of the subframe bottom guard plate 112. The first side plate 11341 overlaps with the corresponding connecting portion 20 and is tightly connected by the locking bolt 1135. The second side plate 11342 overlaps with the third plate portion 1113 and is tightly connected by the locking screw 1132. In this way, the subframe bottom guard plate 112 can be firmly installed at the third plate portion 1113 of the subframe 111 through the L-shaped bracket 1134. Among them, the locking bolt 1135 passes through the first connection hole K1 on the corresponding connecting portion 20.

[0101] In other embodiments, the subframe bottom guard plate 112 and the first type of subframe 111a can also adopt other suitable connection nodes (such as snap connection, etc.) to realize the mutual connection between the two, which is not limited here.

[0102] Figures 13 - 15 Exemplarily, several connection nodes of the subframe bottom guard plate 112 and the second type of subframe 111b are given. They will be introduced and explained separately below.

[0103] See Figure 13 , the connecting structure 113 is a buckle 1131, and the buckle 1131 is buckled to the second connection hole K2 of the corresponding connecting portion 20 and a connection bracket 1138 fixed to the subframe 111, so as to realize the pre-positioning of the subframe bottom guard plate 112 and the subframe 111. Optionally, the distance d1 between the buckle 1131 and the subframe 111 is greater than 5 mm to prevent the subframe 111 from affecting the installation of the buckle 1131.

[0104] See Figure 14 , the connecting structure 113 is a locking screw 1132. The subframe 111 includes a second plate portion 1112. The second plate portion 1112 directly or indirectly overlaps with the corresponding connecting portion 20 and is tightly connected to each other through the locking screw 1132. For example, a screw seat 1133 is provided on the second plate portion 1112. After the locking screw 1132 passes through the second connection hole K2, it is threadedly connected to the screw seat 1133, thereby tightly connecting the subframe bottom guard plate 112 to the subframe 111.

[0105] See Figure 15, the connecting structure 113 includes an L-shaped bracket 1134, a locking bolt 1135 and a locking screw 1132. The L-shaped bracket 1134 plate includes a first side plate 11341 and a second side plate 11342. The subframe 111 includes a third plate portion 1113 which is perpendicular to the plate surface of the subframe bottom guard plate 112. The first side plate 11341 is overlapped with the corresponding connecting portion 20 and is tightly connected by the locking bolt 1135. The second side plate 11342 is overlapped with the third plate portion 1113 and is tightly connected by the locking screw 1132. In this way, the subframe bottom guard plate 112 can be firmly installed at the third plate portion 1113 of the subframe 111 through the L-shaped bracket 1134. Among them, the locking bolt 1135 passes through the second connection hole K2 on the corresponding connecting portion 20.

[0106] In other embodiments, the subframe bottom guard plate 112 and the second subframe 111b can also adopt other suitable connection nodes (such as snap connection, etc.).

[0107] Figure 16 For Figure 5 the cross-sectional view along the K-K line, which shows a connection node between the common connecting portion 30 and the subframe 111.

[0108] Refer to Figure 16 , the common connecting portion 30 is provided with a third connection hole K3. The connecting structure 113 is a snap member 1131. The snap member 1131 realizes the connection between the subframe bottom guard plate 112 and the subframe 111 by simultaneously engaging with the third connection hole K3 and a connection bracket 1138 fixedly connected to the subframe 11.

[0109] Optionally, the end of the snap member 1131 close to the subframe 111 is spaced from the subframe 111, and the spacing distance d2 is greater than 5 mm to prevent the subframe 111 from hindering the installation of the snap member 1131.

[0110] Refer to again Figure 16 , in the cup-shaped portion 80 of the common connecting portion 30, the included angle between one side wall 821 of the surrounding wall 82 and the bottom wall 81 of the cup-shaped portion 80 is greater than or equal to 135°, so that it is convenient for the disassembly tool to operate.

[0111] In summary, the subframe bottom guard plate 112 in this embodiment can be adapted to different subframes 111 at the same time, which is beneficial to reducing the development cost of the subframe bottom guard plate 112.

[0112] The above embodiments are only used to illustrate the technical solutions of the present application rather than to limit them. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A subframe bottom guard plate, used to be connected to a subframe of a vehicle, characterized in that: The sub-frame bottom guard plate comprises a main body and a plurality of connecting parts, wherein the plurality of connecting parts are distributed on the main body at intervals from each other; Each of the connecting parts is provided with a hole group, and each of the hole groups includes a plurality of different connecting holes; wherein the plurality of connecting holes are configured to be suitable for connecting with a plurality of different sub-frames.

2. The subframe bottom guard plate according to claim 1, characterized in that: The multiple different connection holes include at least a first connection hole and a second connection hole; the multiple different sub-frames include at least a first sub-frame and a second sub-frame.

3. The subframe bottom guard plate according to claim 2, characterized in that: At least part of the plurality of connecting parts is a first connecting part; the first connecting part comprises a cup-shaped part which is concave from the main body toward a side close to the sub-frame, and the hole group is provided on the bottom wall of the cup-shaped part; and / or, At least part of the multiple connecting parts are second connecting parts; the second connecting part includes two cup-shaped parts that are concave from the main body to the side close to the sub-frame, the first connecting hole of the hole group is opened on the bottom wall of one of the cup-shaped parts, and the second connecting hole of the hole group is opened on the bottom wall of the other cup-shaped part.

4. The subframe bottom guard plate according to claim 2, characterized in that: The subframe bottom guard plate further includes a plurality of common connection portions, wherein the common connection portions are configured to be suitable for connection with the first subframe and the second subframe; The plurality of common connection parts and the plurality of connection parts are sequentially spaced and distributed along the outer circumference of the main board body.

5. The subframe bottom guard plate according to claim 4, characterized in that: At least one of the plurality of common connection portions comprises a cup-shaped portion that is recessed from the main body toward a side close to the sub-frame; The sub-frame bottom guard plate also includes a cover plate, which covers the opening of the cup-shaped portion, and the cover plate is coplanar with the main body.

6. The subframe bottom guard plate according to claim 5, characterized in that: The cup-shaped portion of the common connection portion comprises a bottom wall and a surrounding wall, and the surrounding wall is provided with a locking groove; The cover plate includes a covering portion and a hook; the covering portion covers the opening of the cup-shaped portion, and the hook is engaged with the engaging groove.

7. A subframe assembly, characterized in that: include: A subframe, wherein the subframe is one of multiple subframes; The subframe bottom guard plate according to any one of claims 1 to 6 is arranged below the subframe; as well as, Multiple connection structures; Wherein, when the sub-frame is one of multiple sub-frames, the multiple connecting structures respectively connect the sub-frame bottom guard plate to the sub-frame of the multiple sub-frames through the corresponding connecting holes of the multiple hole groups.

8. The subframe assembly according to claim 7, characterized in that: Some of the connection structures among the plurality of connection structures are snap fasteners, the sub-frame comprises a first plate portion, the first plate portion is overlapped with the corresponding connection portion, and the first plate portion is snap-connected to each other through the snap fasteners; and / or, Some of the connection structures among the plurality of connection structures are locking screws, the sub-frame comprises a second plate portion, the second plate portion overlaps with the corresponding connection portion, and the second plate portion is locked and connected to each other by the locking screws; and / or, Some of the multiple connecting structures include an L-shaped bracket, a locking bolt and a locking screw, the L-shaped bracket plate includes a first side plate and a second side plate; the subframe includes a third plate portion, the third plate portion is perpendicular to the plate surface of the subframe bottom guard plate, the first side plate is overlapped with the corresponding connecting portion and is locked and connected by the locking bolt, and the second side plate is overlapped with the third plate portion and is locked and connected by the locking screw.

9. The subframe assembly according to claim 8, characterized in that: The buckle component is spaced apart from the sub-frame at one end close to the sub-frame.

10. A vehicle, characterized in that: include: The subframe assembly according to any one of claims 7 to 9.

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