Connecting structure of chassis pipeline protection plate and rear auxiliary frame

Abstract

The utility model discloses a chassis pipeline protection plate and rear auxiliary frame connecting structure which comprises an adapting support, a rear auxiliary frame is provided with a vehicle body connecting assembly, the vehicle body connecting assembly comprises a lining, a lining baffle and a vehicle body connecting bolt, the lining baffle and the vehicle body connecting bolt are arranged on the lining, and the chassis pipeline protection plate is fixedly connected with the lining baffle through the adapting support. The connecting structure of the chassis pipeline protection plate and the rear auxiliary frame can be beneficial to reducing the risk of tension fracture and failure of the chassis pipeline protection plate, can be suitable for installation of the chassis pipeline protection plate of an injection molding structure, can be beneficial to reducing the quality requirement for the chassis pipeline protection plate, and is beneficial to cost control.

Description

TECHNICAL FIELD

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

[0002] Due to the complex and changeable ground conditions, the automobile is easy to knock the outside object and cause the chassis damage when driving, so the chassis pipeline guard plate is generally arranged on the automobile chassis. In the load-bearing body structure with the rear subframe, the part of the chassis pipeline guard plate close to the rear subframe is not directly connected with the body frame. In order to ensure the installation stability of the chassis pipeline guard plate, the mounting point needs to be arranged on the rear subframe for the installation of the chassis pipeline guard plate. In the past, the chassis pipeline guard plate is generally rigidly connected with the frame of the rear subframe through the connecting support. This way has little influence on the chassis pipeline guard plate of sheet metal structure, but is not suitable for the chassis pipeline guard plate of injection molding structure. Since the rear subframe jumps in multiple directions and has large displacement during the driving of the automobile, the chassis pipeline guard plate is subjected to a certain pulling and tearing effect. The quality requirement of the chassis pipeline guard plate of injection molding structure is high, which is not conducive to cost control; and the long-term pulling effect has a high risk of tearing failure of the chassis pipeline guard plate.

[0003] Therefore, it is necessary to provide a new chassis pipeline guard plate and rear subframe connecting structure, which is expected to reduce the tearing failure risk of the chassis pipeline guard plate by adopting the structure, can be applied to the installation of the chassis pipeline guard plate of injection molding structure, can reduce the quality requirement of the chassis pipeline guard plate, and is conducive to cost control. SUMMARY

[0004] Therefore, it is necessary to provide a new chassis pipeline guard plate and rear subframe connecting structure, which is expected to reduce the tearing failure risk of the chassis pipeline guard plate by adopting the structure, can be applied to the installation of the chassis pipeline guard plate of injection molding structure, can reduce the quality requirement of the chassis pipeline guard plate, and is conducive to cost control.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a chassis pipeline guard plate and rear subframe connecting structure, including adapter support, the rear subframe has body connection component, the body connection component includes bushing and bushing baffle and body connection bolt arranged in bushing, the chassis pipeline guard plate is fixedly connected with bushing baffle through adapter support.

[0006] Further, the adapter support and the bushing baffle are detachably fixedly connected, and the adapter support and the chassis pipeline guard plate are detachably fixedly connected.

[0007] Further, the chassis pipeline guard plate is fixedly connected to the bottom of the adapter support through the first fastener.

[0008] Further, the chassis pipeline guard plate is provided with a connecting hole for mounting the first fastener, and the axis of the connecting hole is coaxial with the axis of the vehicle body connecting bolt.

[0009] Further, the chassis pipeline guard plate is provided with a protruding part protruding upward, and the connecting hole is arranged on the protruding part.

[0010] Further, the protruding part has a hollow cavity with an open bottom, and the outer wall of the protruding part is provided with a plurality of reinforcing ribs.

[0011] Further, the bottom edge of the bushing baffle extends radially outward to form at least two lug parts, and the adapter bracket is fixedly connected with each lug part through a second fastener.

[0012] Further, the two lug parts are symmetrically arranged along the axis of the vehicle body connecting bolt.

[0013] Further, the adapter bracket is a metal connecting plate.

[0014] Further, the metal connecting plate is provided with a concave reinforcing part in the middle.

[0015] Compared with the prior art, the chassis pipeline guard plate and rear subframe connecting structure has the following beneficial effects:

[0016] The chassis pipeline guard plate and rear subframe connecting structure can reduce the risk of cracking failure of the chassis pipeline guard plate, can be applied to the installation of the injection molded chassis pipeline guard plate, can reduce the quality requirements for the chassis pipeline guard plate, and is conducive to cost control.

[0017] Other advantages, objects and features of the present application will be set forth in part in the following specification taken in conjunction with the accompanying drawings, and in part will become apparent to those skilled in the art upon examination of the following specification and drawings. The objects and other advantages of the present application can be realized and attained by means of the instrumentalities and combinations particularly pointed out in the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The utility model discloses a whole structure schematic diagram.

[0019] Figure 2 The utility model discloses a cross section structure schematic diagram.

[0020] Figure 3 It is adapter support and bush baffle connecting structure schematic diagram.

[0021] The figure mark: 1 - adapter support;101 - concave reinforcing portion;2 - rear subframe;3 - bush;4 - bush baffle;401 - lug portion;5 - car body connecting bolt;6 - chassis pipeline guard plate;601 - connecting hole;602 - protruding portion;602a - hollow chamber;602b - reinforcing rib;7 - first fastener;8 - second fastener. DETAILED DESCRIPTION

[0022] The following through specific concrete example explains the embodiment of the utility model, and the person skilled in the art can easily understand the other advantages and efficacy of the utility model from the content disclosed in the specification. The utility model can also be implemented or applied through another different specific embodiment, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the drawings provided in the following examples are only used to illustrate the basic concept of the utility model, and the following examples and features in the examples can be combined with each other without conflict.

[0023] Please refer to Figures 1-3 In the embodiment, a chassis pipeline guard plate and rear subframe connecting structure is disclosed, which comprises an adapter support 1. The rear subframe 2 has a car body connecting assembly, which comprises a bush 3, a bush baffle 4 arranged on the bush 3, and a car body connecting bolt 5. The chassis pipeline guard plate 6 is fixedly connected with the bush baffle 4 through the adapter support 1. It can be understood that the car body connecting assembly is used to connect the rear subframe 2 with the car body frame (body in white). Generally, the rear subframe 2 has four connecting parts with the car body frame, and each part is provided with a corresponding car body connecting assembly. The bush baffle 4 is arranged at the bottom of the bush 3, the car body connecting bolt 5 is fixedly connected with the car body frame after penetrating through the bush baffle 4 and the bush 3, and the elastic bush 3 is used to complete the buffering function of the rear subframe. This part can be designed according to the existing rear subframe mounting structure, and details are not described here. Figure 1The chassis pipeline guard plate 6 in the automobile rear pipeline guard plate is connected with the left rear bushing baffle and the right rear bushing baffle of the rear subframe 1 respectively, that is, the rear subframe 1 can provide two mounting points for the chassis pipeline guard plate 6, thereby ensuring the installation stability of the chassis pipeline guard plate 6. Of course, in actual application, the chassis pipeline guard plate 6 also needs to be provided with a connection point with the vehicle body structure at other positions, and this part can be designed with reference to the connection structure of the existing chassis pipeline guard plate 6 and the vehicle body, which will not be described herein.

[0024] The above structure design can reduce the risk of tensile failure of the chassis pipeline guard plate 6, can be applied to the installation of the injection molded chassis pipeline guard plate, can reduce the quality requirement for the chassis pipeline guard plate 6, and is conducive to cost control. Specifically, since the chassis pipeline guard plate 6 is connected to the bushing baffle 4 through the adapter bracket 1 instead of being directly connected to the main frame of the rear subframe 2, the bounce of the rear subframe 2 during driving will not be directly transmitted to the chassis pipeline guard plate 6, thereby effectively reducing the risk of tensile failure of the chassis pipeline guard plate 6, and the installation of the injection molded chassis pipeline guard plate can be better applied. The quality requirement for the chassis pipeline guard plate 6 can be reduced to a certain extent, which is conducive to cost control. Of course, in the present structure design, the adapter bracket 1 is used to complete the connection, which is conducive to ensuring the simplicity of the structure, without the need to change the structure of the bushing baffle 4 of the original rear subframe 2, which is conducive to space layout design. Of course, it is also conducive to reducing the NVH of the whole vehicle.

[0025] In the present embodiment, the adapter bracket 1 and the bushing baffle 4 are detachably fixedly connected, and the adapter bracket 1 and the chassis pipeline guard plate 6 are detachably fixedly connected. Specifically, the detachable fixed connection here adopts a bolt connection structure, but in other embodiments, connection forms such as clamping, pin connection, etc. are also allowed. The detachable connection of the adapter bracket 1, the bushing baffle 4 and the chassis pipeline guard plate 6 can facilitate overall assembly and improve assembly, such as facilitating the assembly of the vehicle body connection bolt 5 and the vehicle body. At the same time, it is conducive to the disassembly, replacement and maintenance of the chassis pipeline guard plate 6 in the later stage. The separate processing and manufacturing of each component can simplify the structure of each component, thereby reducing production costs.

[0026] In the present embodiment, the chassis pipeline guard plate 6 is fixedly connected to the bottom of the adapter bracket 1 by the first fastener 7. Specifically, the first fastener 7 here is a connecting bolt, and a locking nut is welded on the top of the adapter bracket 1. The connecting bolt is fixed with the locking nut after passing through the chassis pipeline guard plate 6 and the adapter bracket 1, thereby completing the fastening of the chassis pipeline guard plate 6 and the adapter bracket 1. The connection is convenient and reliable by using the first fastener 7. The fixed connection to the bottom of the adapter bracket 1 has good compactness of the arrangement position, which is conducive to space layout.

[0027] In the embodiment, the chassis pipeline guard plate 6 is provided with a connecting hole 601 for mounting the first fastener 7, and the axis of the connecting hole 601 is coaxial with the axis of the vehicle body connecting bolt 5. By coaxially arranging the axis of the connecting hole 601 and the axis of the vehicle body connecting bolt 5, the assemblability can be further improved. Specifically, since the two are coaxial, the positional deviation caused by the rotation of the bushing baffle 4 can be reduced. That is, regardless of the circumferential angular position of the bushing baffle 4, the hole alignment of the chassis pipeline guard plate 6 will not be affected. Of course, it can be understood that the adapter bracket 1 will also be designed with a corresponding mounting hole, which is coaxially arranged with the connecting hole 601.

[0028] In the embodiment, the chassis pipeline guard plate 6 is provided with a protruding portion 602 protruding upward, and the connecting hole 601 is arranged on the protruding portion 602. By arranging the protruding portion 602, the distance between the chassis pipeline guard plate 6 and the bushing baffle 4 can be shortened, thereby simplifying the structure of the adapter bracket 1. At the same time, the protruding portion 602 has good structural strength, which can further improve the connection reliability of the connecting portion.

[0029] In the embodiment, the protruding portion 602 has a hollow cavity 602a with an open bottom, and the outer wall of the protruding portion 602 is provided with a plurality of reinforcing ribs 602b. Here, the hollow cavity 602a with an open bottom refers to the portion of the bottom of the protruding portion 602 corresponding to the chassis pipeline guard plate 6. By arranging the hollow cavity 602a with an open bottom, the first fastener 7 can be assembled from the lower part, and the length of the first fastener 7 does not need to be designed too long. By arranging a plurality of reinforcing ribs 602b on the outer wall, the structural strength of the protruding portion 602 can be further improved, and the lightweight design is also facilitated. Here, the protruding portion 602, the reinforcing ribs 602b, and the chassis pipeline guard plate 6 are integrally injection molded.

[0030] In the embodiment, the bottom edge of the bushing baffle 4 extends radially outward to form at least two ear portions 401, and the adapter bracket 1 is fixedly connected with each ear portion 401 by a second fastener 8. Specifically, the second fastener 8 is a connecting bolt. By arranging at least two ear portions 401, the connection reliability of the bushing baffle 4 and the adapter bracket 1 can be ensured. The use of fasteners for connection facilitates disassembly and assembly.

[0031] In the embodiment, there are two ear portions 401, and the two ear portions 401 are symmetrically arranged along the axis of the vehicle body connecting bolt 5. This structure design is simple in component structure, can ensure connection reliability, structural simplicity, and assembly efficiency.

[0032] In the embodiment, the adapter bracket 1 is a metal connecting plate. The use of a metal connecting plate has good structural strength, which can ensure connection reliability.

[0033] In the embodiment, the metal connecting plate is provided with a concave reinforcing part 101 in the middle, which is concave downward, and the concave reinforcing part 101 is beneficial to further improve the structural strength of the adapter support 1, and meanwhile, the concave reinforcing part 101 and the bushing baffle 4 can form a certain reinforcing cavity structure, which is good for improving the structural reliability.

[0034] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A connection structure between a chassis piping guard plate and a rear subframe, characterized in that: The rear subframe (2) includes a frame adapter (1), and the frame includes a body connection assembly. The body connection assembly includes a bushing (3), a bushing baffle (4) disposed on the bushing (3), and a body connection bolt (5). The chassis pipe guard plate (6) is fixedly connected to the bushing baffle (4) via the frame adapter (1).

2. The connection structure between the chassis piping guard plate and the rear subframe according to claim 1, characterized in that: The adapter bracket (1) is detachably and fixedly connected to the bushing baffle (4), and the adapter bracket (1) is detachably and fixedly connected to the chassis pipeline guard plate (6).

3. The connection structure between the chassis piping guard plate and the rear subframe according to claim 2, characterized in that: The chassis pipeline guard plate (6) is fixedly connected to the bottom of the adapter bracket (1) by the first fastener (7).

4. The connection structure between the chassis piping guard plate and the rear subframe according to claim 3, characterized in that: The chassis pipe guard plate (6) is provided with a connection hole (601) for the installation of the first fastener (7), and the axis of the connection hole (601) is coaxial with the axis of the body connecting bolt (5).

5. The connection structure between the chassis piping guard plate and the rear subframe according to claim 4, characterized in that: The chassis pipeline guard plate (6) is provided with an upward protrusion (602), and the connection hole (601) is provided on the protrusion (602).

6. The connection structure between the chassis piping guard plate and the rear subframe according to claim 5, characterized in that: The protrusion (602) has a hollow cavity (602a) with a bottom opening, and the outer wall of the protrusion (602) is provided with a plurality of reinforcing ribs (602b).

7. The connection structure between the chassis piping cover and the rear subframe according to any one of claims 2-6, characterized in that: The bottom edge of the bushing baffle (4) extends radially outward to form at least two support ears (401), and the adapter bracket (1) is fixedly connected to each support ear (401) by a second fastener (8).

8. The connection structure between the chassis piping guard plate and the rear subframe according to claim 7, characterized in that: There are two support ears (401), and the two support ears (401) are symmetrically arranged along the axis of the vehicle body connecting bolt (5).

9. The connection structure between the chassis piping guard plate and the rear subframe according to claim 1, characterized in that: The adapter bracket (1) is a metal connecting plate.

10. The connection structure between the chassis piping guard plate and the rear subframe according to claim 9, characterized in that: The metal connecting plate has a recessed reinforcing part (101) in the middle.

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