Miniature bus aluminum body frame structure

Abstract

The invention relates to the field of automobile structure design, in particular to a miniature bus aluminum body frame structure which comprises a top cover, a front wall, a rear wall, a left side wall and a right side wall and is characterized in that the top cover, the front wall, the rear wall, the left side wall and the right side wall are all formed by connecting a plurality of profiles, and the section of each profile is provided with a first cavity, a second cavity and a third cavity which are sequentially arranged; the profiles are provided with grooves, the profiles are connected through the connecting pieces, the connecting parts of the connecting pieces and the profiles are embedded in the corresponding grooves, the two adjacent profiles are riveted through the connecting pieces, failure factors such as pseudo soldering and false soldering are avoided, the vehicle body framework is assembled through the connecting pieces in a riveting mode, operation is easy and fast, and the assembly efficiency is improved. And the assembled vehicle body is high in reliability and strength.

Description

Technical Field

[0001] The invention relates to the field of automobile structure design, and in particular to an aluminum body frame structure of a mini bus. Background Art

[0002] Due to the rapid development of minibuses, the body frame, as one of the important components of minibuses, is also in urgent need of miniaturization design to adapt to the rapid development of the market. Currently, the body frames of minibuses on the market are mostly steel frames or larger aluminum frames. Since the overall model of minibuses is small and the precision requirements are relatively high, the current minibus body structure has the following problems: 1. The entire body frame is welded, and the welding process is difficult to control, and it is easy to have defects such as false welding and false welding. The workload is large and the anti-corrosion is difficult to ensure. The welding deformation is difficult to control and the body accuracy is difficult to ensure, which is not conducive to the high-precision design of the minibus; 2. Limited by the material properties of aluminum profiles, in order to meet the requirements of body structure strength, the aluminum profiles used in the body of the aluminum micro-circulation bus on the market are generally larger in size. The larger aluminum profile structure occupies the thickness of the body and compresses the space inside the vehicle, which is not conducive to miniaturization design; 3. The heads of conventional rivet connections are exposed, affecting the installation of interior and exterior decorations.

[0003] In short, the two structures currently on the market, whether steel frame or aluminum frame, are difficult to apply to the current minibus body structure in terms of strength, precision, lightweight design, etc. The traditional body structure is difficult to adapt to the development of minibuses. Therefore, there is an urgent need for a minibus aluminum body frame structure to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a minibus aluminum body frame structure to solve the problems raised in the above background technology.

[0005] A mini bus aluminum body frame structure, including a top cover, a front enclosure, a rear enclosure, a left enclosure, and a right enclosure, characterized in that the top cover, the front enclosure, the rear enclosure, the left enclosure, and the right enclosure are all formed by connecting a plurality of profiles, the profile cross-section includes a first cavity, a second cavity, and a third cavity arranged in sequence, the profiles are all provided with grooves, the profiles are connected by connectors, the connectors and the profiles are connected by riveting, and the connecting parts of the connectors and the profiles are embedded in the corresponding grooves.

[0006] Preferably, each of the grooves is provided with a mounting hole, and each of the mounting holes is provided on the cavity wall of the second cavity on a side close to the connecting piece.

[0007] Preferably, a rivet penetrates each of the mounting holes, and the connecting piece is provided with a matching hole matching the mounting hole. The rivet penetrates the matching hole and the mounting hole in sequence to rivet the connecting piece into the groove.

[0008] Preferably, the cross-sections of the first cavity, the second cavity and the third cavity are all rectangular.

[0009] Preferably, when the number of the profiles is two and the two profiles intersect, the connector at the connection between the two profiles is an angle connector.

[0010] Preferably, when the angle between the two profiles is 90 degrees, the angle of the angle connector is a right angle.

[0011] Preferably, when there are two profiles and the two profiles are parallel to each other, the connector is a plate-type connector, which includes a first support plate, a first connecting plate is fixedly provided at the connection between the first support plate and the profile, and the two first connecting plates are riveted to the corresponding profiles respectively.

[0012] Preferably, the number of the profiles is three, and when the two profiles are parallel to each other and intersect with another profile, the connecting piece is a concave connecting piece, and the concave connecting piece includes a second support plate, and a second connecting plate is fixedly provided at the connection between the second support plate and the profile, and the three second connecting plates are respectively riveted to the corresponding profiles.

[0013] Preferably, the top cover, the front enclosure, the rear enclosure, the left enclosure and the right enclosure are connected by connecting pieces.

[0014] Beneficial Effects (1) Two adjacent profiles are riveted with connectors to avoid failure factors such as cold welding and false welding. The connection between the connector and the profile is embedded in the groove to facilitate the subsequent installation of interior and exterior decoration.

[0015] (2) The body frame is assembled by riveting the connectors, which is simple and quick to operate, and the assembled body is reliable and strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the minibus body frame; Figure 2 It is a schematic diagram of the structure when two profiles intersect; Figure 3 for Figure 2 A schematic diagram of the structure of the center angle connector; Figure 4 It is a structural schematic diagram when two profiles are parallel; Figure 5 for Figure 4 Structural schematic diagram of the middle plate type connector; Figure 6 It is a schematic diagram of the structure when three profiles are connected; Figure 7 for Figure 6 A schematic diagram of the structure of a concave connector; Figure 8 is a schematic diagram of the cross-sectional structure of the profile; Fig. 9 It is a schematic diagram of the structure when four profiles are connected; Fig.10 It is a schematic diagram of the structure of the connection between the left side panel and the top cover; In the figure: 1. profile, 101. first cavity, 102. second cavity, 103. third cavity, 2. corner connector, 201. arc structure, 3. plate connector, 301. first connecting plate, 302. hollow structure, 303. first support plate, 4. concave connector, 401. second connecting plate, 402. concave structure, 403. second support plate, 5. matching hole, 6. groove, 7. top cover, 8. front enclosure, 9. rear enclosure, 10. left enclosure, 11. right enclosure, 12. rivet. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it is necessary to understand that the terms "middle", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] like Figure 1As shown, a mini bus aluminum body frame structure includes a top cover 7, a front enclosure 8, a rear enclosure 9, a left enclosure 10, and a right enclosure 11. The top cover, the front enclosure, the rear enclosure, the left enclosure, and the right enclosure are all connected by a plurality of profiles 1. The profile cross section includes a first cavity 101, a second cavity 102, and a third cavity 103 arranged in sequence. The profiles are all provided with grooves 6. The grooves are formed by cutting the profiles by the operator. The profiles are connected by connecting pieces. The connecting parts of the connecting pieces and the profiles are all embedded in the corresponding grooves. Each groove is provided with a mounting hole (not shown in the figure), and each mounting hole is provided on the cavity wall of the second cavity close to the connecting piece. Each mounting hole is penetrated by a rivet 12. The connecting piece is provided with a matching hole 5 matching the mounting hole. The rivet penetrates the matching hole and the mounting hole in sequence to rivet the connecting piece in the groove. The cross sections of the first cavity, the second cavity, and the third cavity are all rectangular. The profiles used in the body frame are all aluminum profiles.

[0020] When there are two profiles and the two profiles intersect, the connector at the connection of the two profiles is an angle connector 2. When the angle between the two profiles is 90 degrees, the angle of the angle connector is a right angle. When there are two profiles and the two profiles are parallel to each other, the connector is a plate connector 3, which includes a first support plate 303, and a first connecting plate 301 is fixedly provided at the connection between the first support plate and the profile, and the two first connecting plates are riveted to the corresponding profiles respectively. When there are three profiles and the two profiles are parallel to each other and intersect with another profile, the connector is a concave connector 4, and the concave connector includes a second support plate 403, and a second connecting plate 401 is fixedly provided at the connection between the second support plate and the profile, and the three second connecting plates are riveted to the corresponding profiles respectively.

[0021] like Figure 2 and 3 As shown, when there are two profiles and the two profiles intersect, the connector at the connection of the two profiles is an angle connector, which is embedded in two corresponding grooves. An arc 201 structure is provided at the connection of the angle connector. When the angle between the two profiles is 90 degrees, the angle of the angle connector is a right angle.

[0022] like Figure 4 and Figure 5 As shown, when there are two profiles and the two profiles are parallel to each other, the connector is a plate-type connector 3, which includes a first support plate, a first connecting plate is fixed at the connection between the first support plate and the profile, the two first connecting plates are riveted to the corresponding profiles respectively, the two first connecting plates are embedded in the corresponding grooves respectively, and the first support plate is provided with a hollow structure 302 to make the structure lighter.

[0023] like Figure 6 and Figure 7As shown, there are three profiles and two of them are parallel to each other, and the other profile intersects with the two parallel profiles. The connecting member is a concave connecting member, and the concave connecting member includes a second support plate. A second connecting plate is fixed at the connection between the second support plate and the profile. The three second connecting plates are riveted to the corresponding profiles respectively, and the three second connecting plates are embedded in the corresponding grooves. An inner concave structure 402 is provided on the side of the second support plate that is not connected to the profile to make the structure lighter.

[0024] like Fig. 9 As shown, four profiles are connected by an angle connector. The operator cuts a groove matching the angle connector on the profile. The groove is provided with a mounting hole matching the angle connector. The angle connector is embedded in the groove. Rivets are used to rivet the connector to the corresponding profile, thereby connecting multiple profiles. The rivets and connectors will not be exposed from the profile, ensuring the installation of interior and exterior decoration. Riveting can also avoid adverse phenomena such as cold welding and false welding during the welding process.

[0025] like Fig.10 As shown, the top cover and the left side enclosure or the top cover and the right side enclosure are connected by a plate-type connector and a concave connector. The structures of the left side enclosure and the right side enclosure are basically the same. Taking the top cover and the left side enclosure as an example, the plate-type connector is arranged between the top cover and the left side enclosure. The first connecting plates at both ends of the plate-type connector are respectively connected to the top cover and the left side enclosure. The first connecting plates are both embedded in the corresponding profiles connected to the two ends of the plate-type connector. The concave connector is also arranged between the top cover and the left side enclosure. The second connecting plate at the connection between the concave connector and the top cover is embedded in the top cover. The second connecting plate at the connection between the concave connector and the left side enclosure is embedded in the left side enclosure. The connection method between the top cover and the right side enclosure is the same as above and will not be repeated here.

[0026] Methods of using the present invention When the profiles are connected by connectors, a groove is cut at the connection, the connecting part of the connector and the profile is embedded in the groove, and the connector and the profile are riveted to fix the connected profile. The cutting of the groove is determined according to the position between the profiles. An angle connector, a plate connector or a concave connector is selected according to the position between the profiles. Multiple profiles are connected by connectors to form a skeleton structure of a top cover, a front enclosure, a rear enclosure, a left enclosure and a right enclosure. The top cover, the front enclosure, the rear enclosure, the left enclosure and the right enclosure are also connected by connectors, which can effectively avoid cold welding and false welding between the profiles. The body frame is assembled by riveting through the connectors, which saves production time and improves the strength of the body frame.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A mini bus aluminum body frame structure, including a top cover, a front enclosure, a rear enclosure, a left enclosure, and a right enclosure, characterized in that: The top cover, front enclosure, rear enclosure, left enclosure and right enclosure are all formed by connecting a plurality of profiles, the cross section of the profile includes a first cavity, a second cavity and a third cavity arranged in sequence, the profiles are all provided with grooves, the profiles are connected by connecting pieces, the connecting piece and the profile are connected by riveting, and the connecting part between the connecting piece and the profile is embedded in the corresponding groove.

2. A minibus aluminum body frame structure as claimed in claim 1, characterized in that: A mounting hole is arranged in each of the grooves, and each of the mounting holes is arranged on the cavity wall of the second cavity close to the connecting piece.

3. A minibus aluminum body frame structure as claimed in claim 1, characterized in that: A rivet is passed through each of the mounting holes, and a matching hole matching the mounting hole is provided on the connecting piece. The rivet passes through the matching hole and the mounting hole in sequence to rivet the connecting piece into the groove.

4. The aluminum body frame structure of a minibus as claimed in claim 1, characterized in that: The cross sections of the first cavity, the second cavity and the third cavity are all rectangular.

5. The aluminum body frame structure of a minibus as claimed in claim 1, characterized in that: When the number of the profiles is two and the two profiles intersect, the connector at the connection of the two profiles is an angle connector.

6. A minibus aluminum body frame structure as claimed in claim 5, characterized in that: When the angle between the two profiles is 90 degrees, the angle of the angled connector is a right angle.

7. The aluminum body frame structure of a minibus as claimed in claim 1, characterized in that: When there are two profiles and the two profiles are parallel to each other, the connector is a plate-type connector, which includes a first support plate, a first connecting plate is fixedly provided at the connection between the first support plate and the profile, and the two first connecting plates are riveted to the corresponding profiles respectively.

8. The aluminum body frame structure of a minibus as claimed in claim 1, characterized in that: There are three profiles, and when two profiles are parallel to each other and intersect with another profile, the connecting piece is a concave connecting piece, and the concave connecting piece includes a second supporting plate, and a second connecting plate is fixedly provided at the connection between the second supporting plate and the profile, and the three second connecting plates are riveted to the corresponding profiles respectively.

9. The aluminum body frame structure of a minibus as claimed in claim 1, characterized in that: The top cover, the front enclosure, the rear enclosure, the left enclosure and the right enclosure are connected via connecting pieces.

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