CN213892682U

CN213892682U - Connecting structure of threshold beam and floor

Info

Publication number: CN213892682U
Application number: CN202023220761.8U
Authority: CN
Inventors: 雷飞; 邱志锋; 张天昊; 栗睿
Original assignee: Hunan University
Current assignee: Hunan University
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-06
Anticipated expiration: 2030-12-28

Abstract

The utility model provides a connection structure on threshold roof beam and floor, include with threshold roof beam fixed connection's first overlap edge and buckle the second overlap edge that forms by the floor, first overlap edge and floor overlap joint, second overlap edge and threshold roof beam overlap joint. Through setting up first overlap edge and second overlap edge, increased the overlap area between threshold roof beam and the bottom plate for transmission moment and bending moment that can be better between threshold roof beam and the floor can reduce the bending and the deformation that threshold roof beam and floor formed because of the collision.

Description

Connecting structure of threshold beam and floor

Technical Field

The utility model relates to an automobile body design, concretely relates to connection structure on threshold roof beam and floor.

Background

In an automobile body, a flange is often arranged on a floor to be welded with a threshold beam when the threshold beam and the floor are connected, and the existence of the flange can increase the contact area of the floor and the threshold beam so as to enhance the connection strength, but the connection strength is still not high. Utility model patent with publication number CN209904885U discloses a vehicle that is used for connection structure of front floor and threshold roof beam and has it, include: a connection structure body, the connection structure body includes: the energy absorption device comprises a main energy absorption plate and side energy absorption plates, wherein the main energy absorption plate is constructed into a fold line shape, and the side energy absorption plates are connected to two sides of the main energy absorption plate and define an energy absorption cavity with the main energy absorption plate. According to the utility model discloses a connection structure for preceding floor and threshold roof beam, simple structure when lightening its weight and reduce cost, promotes automobile body crash safety performance. The connecting structure needs to be additionally provided with a connecting structure body to connect the threshold beam and the bottom plate, and the structure is complex.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the specific technical scheme is as follows.

The utility model provides a connection structure on threshold roof beam and floor, includes the first overlap edge with threshold roof beam fixed connection and the second overlap edge that forms by the floor is buckled, first overlap edge and floor overlap joint, second overlap edge and threshold roof beam overlap joint.

Further, the threshold roof beam includes the slope limit, the first contained angle that the slope limit formed with first overlap joint limit is the obtuse angle, the floor with the second contained angle that the second overlap joint limit formed equals with first contained angle.

Furthermore, a reinforcing rib is arranged between the doorsill beam and the first lap edge, and the reinforcing rib is positioned on one side, far away from the inclined edge, of the first lap edge.

Furthermore, the radial section of the reinforcing rib is a right-angled triangle, and two right-angled edges of the reinforcing rib are respectively fixedly connected with the sill beam and the floor.

Furthermore, the side of first overlap joint board with the first side of threshold roof beam is perpendicular, just the side of first overlap joint board with the second side coplane of threshold roof beam, the side of second overlap joint limit with the laminating of the third side of threshold roof beam, first side is relative with the third side, the second side is adjacent with first side, third side respectively.

Further, the joint of the first lap joint edge and the floor is connected through FDS flow drilling screws or SPR self-piercing riveting; and the joint of the second lap edge and the threshold beam is connected through an FDS flow drilling screw or SPR self-piercing riveting.

Further, structural adhesive is filled between the first lap joint edge and the floor; and structural adhesive is filled between the second lap joint edge and the sill beam.

Has the advantages that: the utility model discloses a connection structure on threshold roof beam and floor, threshold roof beam pass through first overlap edge and floor overlap joint, and the floor passes through second overlap plate and threshold roof beam overlap joint for overlap area between threshold roof beam and the floor can effectively increase, and threshold roof beam and bottom plate support mutually in two directions, and this simple structure makes to have better joint strength and twist reverse, bending stiffness between threshold roof beam and the bottom plate.

Drawings

Fig. 1 is a schematic view of a connection structure between a sill beam and a bottom plate in embodiment 1 of the present invention;

fig. 2 is a schematic view of a connection structure between a sill beam and a bottom plate in embodiment 2 of the present invention.

Reference numerals: 1-a threshold beam; 2-floor board; 3-a first overlapping edge; 4-a second overlapping edge; 5-a beveled edge; 6-reinforcing rib.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1, the present embodiment provides a connecting structure of a rocker beam and a floor, including a first overlap edge 3 fixedly connected to the rocker beam 1 and a second overlap edge 4 formed by bending the floor 2, the first overlap edge 3 is overlapped with the floor 2, and the second overlap edge 4 is overlapped with the rocker beam 1.

Particularly, first overlap edge 3 can adopt welded mode and 1 fixed connection of threshold roof beam, also can adopt cast mode and 1 integrated into one piece of threshold roof beam, and first overlap edge 3 stretches out to the outside along the side of threshold roof beam 1, threshold roof beam 1 still includes a tilt edge 5, tilt edge 5 with it connects to buckle the limit and form into obtuse first contained angle with tilt edge 5, by 2 floor buckle the second overlap edge 4 that forms with the angle of the second contained angle that the bottom plate formed equals with the angle of first contained angle.

In this embodiment, because with threshold roof beam 1 welding or integrated into one piece's first overlap edge 3 and floor 2 overlap joint, the second overlap edge 4 that floor 2 buckles and form overlaps joint with threshold roof beam 1, the overlap area between threshold roof beam 1 and the floor 2 has been increased on the one hand, make the joint strength between threshold roof beam 1 and the floor 2 increase, on the other hand threshold roof beam 1 and floor 2 form the support each other in two directions, make transmission moment and bending moment that can be better between threshold roof beam 1 and the floor 2, can reduce the bending and the deformation that threshold roof beam 1 and floor 2 formed because of the collision.

Specifically, the connection part of the first overlapping edge 3 and the floor 2 is connected through FDS flow drilling screws or SPR self-piercing riveting; the second overlapping edge 4 is connected with the threshold beam 1 through FDS flow drilling screw connection or SPR self-piercing riveting. The connecting strength between the threshold beam 1 and the floor 2 can be guaranteed through the FDS flow drilling screw process or the SPR self-piercing riveting process, more overlapping areas are formed between the threshold beam 1 and the floor 2 through the arrangement of the first overlapping edge 3 and the second overlapping edge 4, and connecting positions are provided for the FDS flow drilling screw process or the SPR self-piercing riveting process.

Specifically, structural adhesive is filled between the first overlapping edge 3 and the floor 2; and structural adhesive is filled between the second overlap edge 4 and the sill beam 1. The connection strength between the rocker beam 1 and the floor 2 can be further improved by filling the structural adhesive.

In particular, a reinforcing rib 6 is provided between the rocker beam 1 and the first overlapping edge 3, said reinforcing rib 6 being located on the side of the first overlapping edge 3 remote from the sloping edge 5. The radial section of the reinforcing rib 6 is a right triangle, and two right-angle sides of the reinforcing rib 6 are respectively fixedly connected with the sill beam 1 and the floor 2. The first lap joint edges 3 are supported through the reinforcing ribs 6, the threshold beam 1 can be guaranteed to support the floor 2 in the vertical direction, and the connecting strength between the threshold beam 1 and the floor 2 is further enhanced.

Example 2

As shown in fig. 2, the present embodiment provides a connecting structure of a rocker beam and a floor, including a first overlap edge 3 fixedly connected to the rocker beam 1 and a second overlap edge 4 formed by bending the floor 2, the first overlap edge 3 is overlapped with the floor 2, and the second overlap edge 4 is overlapped with the rocker beam 1.

Specifically, threshold roof beam 1 has four sides, the side of first overlap joint board is perpendicular with the first side of threshold roof beam 1, the side of first overlap joint board with the second side coplane of threshold roof beam 1, the side of second overlap joint limit 4 with the laminating of the third side of threshold roof beam 1, first side is relative with the third side, the second side is adjacent with first side, third side respectively. Specifically, the first overlap edge 3 is located at the intersection position of the first side surface and the second side surface of the threshold beam 1, when the floor 2 is overlapped with the threshold beam 1, the floor 2 is respectively attached to the second side surface of the threshold beam 1 and the side surface of the first overlap edge 3, the threshold beam 1 and the first overlap edge 3 respectively support the floor 2, and the connection strength between the floor 2 and the threshold beam 1 is enhanced. And the second overlapping edge 4 formed by bending the floor 2 is overlapped with the third side surface of the threshold beam 1, so that the connection relation between the threshold beam 1 and the floor 2 is further strengthened.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the technical field of the utility model belongs to the prerequisite without departing from the utility model discloses the utility model, can also make a plurality of equal substitution or obvious variant, and performance or usage are the same moreover, all should regard as belonging to within the scope of protection of the utility model.

Claims

1. The utility model provides a connection structure on threshold roof beam and floor, its characterized in that, includes first overlap edge (3) with threshold roof beam (1) fixed connection and buckles second overlap edge (4) that form by floor (2), first overlap edge (3) and floor (2) overlap joint, second overlap edge (4) and threshold roof beam (1) overlap joint.

2. A sill beam to floor connection according to claim 1, characterized in that the sill beam (1) comprises a sloping edge (5), that the first angle formed by the sloping edge (5) and the first overlapping edge (3) is an obtuse angle, and that the second angle formed by the floor (2) and the second overlapping edge (4) is equal to the first angle.

3. A rocker beam to floor connection according to claim 2, characterised in that a reinforcing rib (6) is arranged between the rocker beam (1) and the first overlapping edge (3), which reinforcing rib (6) is located on the side of the first overlapping edge (3) remote from the tilting edge (5).

4. A sill beam to floor connection according to claim 3, characterized in that the radial cross-section of the reinforcement rib (6) is a right triangle and that the two right-angled sides of the reinforcement rib (6) are fixedly connected to the sill beam (1) and the floor (2), respectively.

5. A sill beam to floor connection according to claim 1, characterized in that the side of the first lap strap is perpendicular to the first side of the sill beam (1) and coplanar with the second side of the sill beam (1), the side of the second lap strap (4) is attached to the third side of the sill beam (1), the first side being opposite to the third side, the second side being adjacent to the first and third sides, respectively.

6. The sill beam to floor connection according to any one of claims 1 to 5, characterized in that the connection of the first overlap edge (3) to the floor (2) is by FDS flow drill screw connection or SPR self piercing riveting; the second lap joint edge (4) is connected with the junction of the sill beam (1) through FDS flow drilling screws or SPR self-piercing riveting.

7. A sill beam to floor connection according to any of the claims 1 to 5, characterized in that a structural glue is filled between the first overlap edge (3) and the floor (2); structural adhesive is filled between the second overlapping edge (4) and the sill beam (1).