CN203237301U - Vehicle body torsional rigidity reinforcing structure - Google Patents

Abstract

The utility model provides a torsional rigidity strengthening structure of a vehicle body, comprising: a side reinforcement member, one end of which is provided with a first positioning connection part, the lower surface of which is used to connect with the side wall of the vehicle body; a floor beam, at least one end of which is provided with a second positioning connection part, the lower surface of which is used to connect with the body floor; the connecting part is used to connect the side wall reinforcement and the floor beam, one end is provided with a third positioning connection part corresponding to the first positioning part, and the other end is provided with a third positioning connection part corresponding to the first positioning part. The second positioning connection part corresponds to the fourth positioning connection part. The torsional rigidity strengthening structure of the vehicle body of the utility model positions and connects the side wall reinforcement and the connector, and the floor beam and the connector through the positioning connection part, thereby completing the precise positioning between the connector, the side wall reinforcement and the floor beam, There is no need for welding fixtures, the operation is more convenient, and at the same time, the torsional rigidity of the car body is greatly improved.

Description

body torsional rigidity reinforcement structure

technical field

The utility model relates to the technical field of vehicle body structure, in particular to a body torsional rigidity strengthening structure.

Background technique

The car body is one of the most critical assemblies of the car. The car body should have sufficient torsional rigidity. Insufficient torsional rigidity will cause large deformation in some areas of the car body, and abnormal noise will be generated during driving; and a vehicle with high torsional rigidity, its collision Performance, strength performance and handling performance will all have better performance.

Therefore, improving the torsional rigidity of the car body has always been the focus of design by engineers in the industry, especially for the design of the body structure of hatchbacks. Due to the large space at the back door, there is often a problem of insufficient torsional rigidity.

In the prior art, the torsional rigidity of the vehicle body is often improved by using a bridging piece. One end of the bridging piece is welded together with the side panel assembly of the vehicle body, and the other end is welded together with the floor assembly of the vehicle body.

Generally speaking, the lap joint will be welded with the body side panel assembly first, and then welded with the body floor assembly. However, when the lap joint is welded to the body side panel assembly, in order to ensure accurate positioning and welding quality, it is necessary to use a welding fixture to complete the operation. Due to the complex structure of the body side panel assembly, the structure of the corresponding welding jig is also very complicated. During welding, the operation is very inconvenient, and the welding quality is not easy to control.

Utility model content

Features and advantages of the invention are set forth in part in the description which follows, or may be obvious from the description, or may be learned by practicing the invention.

In order to overcome the problems of the prior art, the utility model provides a torsional rigidity strengthening structure of the vehicle body, which positions and connects the side wall reinforcement and the connecting part, as well as the floor beam and the connecting part through the positioning connection part, thereby completing the connection between the connecting part and the side wall Precise positioning between reinforcements and floor beams, and no welding jigs are required, making the operation more convenient.

The technical solution adopted by the utility model to solve the problems of the technologies described above is as follows:

According to one aspect of the present invention, there is provided a vehicle body torsional rigidity strengthening structure, comprising: a side wall reinforcement, one end of which is provided with a first positioning connection part, the lower surface of which is used to connect with the vehicle body side wall; floor beams, at least one end of which is provided with There is a second positioning connection part, the lower surface of which is used to connect with the body floor; the connecting piece is used to connect the side wall reinforcement and the floor beam, and a third positioning connection part corresponding to the first positioning part is provided at one end, The other end is provided with a fourth positioning connection portion corresponding to the second positioning connection portion.

According to an embodiment of the present invention, it further includes a first bolt and a second bolt, the first bolt passes through the first positioning connection part and the third positioning connection part, and is used for fixing the side wall reinforcement and the connecting part; The second bolt passes through the second positioning connection part and the fourth positioning connection part, and is used for fixing the floor beam and the connecting piece.

According to an embodiment of the present invention, both ends of the floor beam are provided with second positioning connection parts, and the connecting piece forms a U-shaped structure with the side wall reinforcement and the floor beam.

According to an embodiment of the present invention, at least one end of the connecting piece is provided with a welding edge for welding with the side wall reinforcement or the floor beam.

According to an embodiment of the present invention, the cross section of the connecting piece is U-shaped, the third positioning connecting portion and the fourth positioning connecting portion are arranged at the bottom of the U-shape, and the connecting piece is bent longitudinally to form an arc shape.

According to an embodiment of the present invention, flange structures are provided on the two ends of the U-shape for connecting with the side wall of the vehicle body and the floor of the vehicle body.

According to an embodiment of the present invention, the cross section of the side wall reinforcement is U-shaped, the first positioning connection part is arranged at the bottom of the U shape, and the side wall reinforcement is provided with one end of the first positioning connection part. The U-height is greater than the U-height at the other end.

According to an embodiment of the present invention, flange structures are provided on the two ends of the U-shape for connecting with the side wall of the vehicle body; or the side wall reinforcement is not provided with the first positioning connection part One end of the U-shaped bottom is provided with a protrusion for connecting with the side wall of the vehicle body.

According to one embodiment of the present invention, the cross-section of the floor beam is U-shaped, the second positioning connection part is arranged at the bottom of the U-shaped, flange structures are provided on the two ends of the U-shaped, and connected to the body floor.

According to an embodiment of the present invention, the bottom or side of the U-shape is provided with a weight-reducing portion for reducing the weight of the floor beam.

The utility model provides a torsional rigidity strengthening structure of a vehicle body, which uses a positioning connection part to position the side wall reinforcement and the connecting part, as well as the floor beam and the connecting part, so that the connecting part and the side wall assembly of the vehicle body can be completed without using a welding fixture. Accurate positioning between the body floor assemblies, and the fixed connection between the side wall reinforcement and the connecting part and between the floor beam and the connecting part are completed by bolts passing through the positioning connection part, which makes the operation more convenient and greatly improves the stability of the car body. torsional stiffness.

Those of ordinary skill in the art will better understand the features and contents of these technical solutions by reading the description.

Description of drawings

The utility model is specifically described below with reference to the accompanying drawings and in conjunction with examples. The advantages and implementation methods of the present utility model will be more obvious. Limitations of any sense, in the attached drawings:

Fig. 1 is a specific structural schematic diagram of the torsional rigidity strengthening structure of the vehicle body according to the first embodiment of the present invention.

Fig. 2 is a specific structural diagram of the torsional rigidity strengthening structure of the vehicle body according to the second embodiment of the present invention.

Fig. 3 is a front view of the side wall reinforcement of the embodiment of the present invention.

Fig. 4 is a side view of the side wall reinforcement of the embodiment of the present invention.

Fig. 5 is a front view of the floor beam of the embodiment of the present invention.

Fig. 6 is a schematic perspective view of the three-dimensional structure of the connector of the embodiment of the present invention.

Detailed ways

As shown in FIG. 1 , the utility model provides a torsional rigidity reinforcement structure for a vehicle body, including: a side wall reinforcement 10 , a floor beam 30 , and a connecting piece 20 for connecting the side wall reinforcement 10 and the floor beam 30 .

Please also refer to FIG. 3 , one end of the side wall reinforcement 10 is provided with a first positioning connection portion 11 , which can be a bolt hole; In this embodiment, the cross section of the side wall reinforcement is U-shaped, the first positioning connection part 11 is arranged at the bottom of the U-shape, and flange structures 13 are provided on the two ends of the U-shape. It is used to be connected with the side wall 40 of the vehicle body; in order to better connect with the side wall 40 of the vehicle body, a protrusion 12 can also be set at the U-shaped bottom of the side wall reinforcement 11 without the first connecting portion 11, the protrusion 12 The riser 12 is also used to be connected to the side wall 40 of the vehicle body. Please refer to FIG. 4 again. FIG. 4 is a side view of the side wall reinforcement of the embodiment of the present invention. The U-shaped height of one end of the side wall reinforcement 10 provided with the first positioning connection portion 11 is greater than the U-shaped height of the other end, so that the weight of the side wall reinforcement 10 can be effectively reduced, and the cost can be reduced at the same time.

The cross section of the floor beam 30 is also U-shaped, please refer to FIG. 5 , which is a front view of the floor beam according to the embodiment of the present invention. At least one end of the floor beam 30 is provided with a second positioning connection portion 31 , which can be a bolt hole and is disposed at the bottom of the U shape; the lower surface of the floor beam 30 is used for connecting with the vehicle body floor 50 . In this embodiment, at least one end of the floor beam 30 is provided with two second positioning connecting parts 31 , so that the positioning with the connecting member 20 can be better realized. However, the present invention does not limit the number of the second positioning connection parts 31 on the floor beam 30 . In order to better realize the connection between the floor beam 30 and the vehicle body floor 50 , flange structures 33 may be provided at the two ends of the U shape to increase the connection area with the vehicle body floor 50 . Simultaneously, in order to reduce the weight of the floor beam 30, the bottom or side of the U-shape can be provided with a weight-reducing portion 32. It is a through-hole structure directly, and the weight-reducing portion 32 is provided on the bottom and side of the U-shape at the same time.

Please refer to FIG. 6 for the structure of the connecting piece 20 , the cross section of the connecting piece 20 is U-shaped, and the connecting piece 20 is bent longitudinally to form an arc shape. A third positioning connecting portion 21 corresponding to the first positioning portion 11 is provided on the U-shaped bottom at one end of the connector 20, and a third positioning connecting portion 21 corresponding to the second positioning connecting portion 31 is provided on the U-shaped bottom at the other end. Four positioning connection parts 22; similarly, the third positioning connection part 21 and the fourth positioning connection part 22 may be bolt holes. In this embodiment, the side wall reinforcement 10 is provided with a first connecting portion 11, so only one third connecting portion 21 needs to be provided on the connecting member 20, while the floor beam 3 is provided with two second connecting portions. Positioning the connecting part 31, so the connecting part 20 is also provided with two fourth connecting parts 22, and the above three positioning connecting parts on the connecting part 20 are not in a straight line, so the connecting part 20 can be more stable The connection with the side wall reinforcement 10 and the floor cross member 30 is realized in a fast manner.

In this embodiment, the connecting piece 20 is further provided with a welding edge 23 on the end provided with the third positioning connecting portion 21, and the welding edge 23 is used for welding with the side wall reinforcement 10, so as to strengthen the connecting piece 20 and the side wall. The connection strength of the reinforcing member 10. Of course, although not shown in the figure, a welding edge may also be provided at the end of the connecting member 20 provided with the fourth positioning portion 22 to enhance the connection strength between the connecting member 20 and the floor beam 30 .

When using the connecting piece 20 to connect the side wall reinforcement 10 and the floor beam 30, the first bolt 61 can be used to pass through the first positioning connection part 11 and the third positioning connection part 21 to connect the side wall reinforcement 10 to the floor beam 30. 20 is positioned and connected; at the same time, the second bolt 62 is used to pass through the second positioning connection part 31 and the fourth positioning connection part 22 to position and connect the floor beam 30 and the connecting part 20. Of course, in this embodiment , one first bolt 61 and two second bolts 62 are required. In order to further strengthen the connecting effect of the connector 20, flange structures 24 and 25 are provided on the two ends of the connector 20U, wherein the flange structure 25 is used to connect with the body side wall 40, and the flange structure 24 is used to It is connected with the body floor 50 .

In specific implementation, the side wall reinforcement 10 can be connected to the body side wall 40 by means of welding first, and the floor beam 30 can be connected to the body floor 50 at the same time, and finally the first bolt 61, the second bolt 62 and the connecting piece can be used 20. Connect the side wall reinforcement 10 and the floor beam 30; weld the flange structure 24 of the connector 20 to the body side wall 40; weld the flange structure 25 of the connector 20 to the body floor 50; The welded edge 23 of the member 20 is welded to the side wall reinforcement 10 .

Please refer to FIG. 2 again. FIG. 2 is a specific structural diagram of the torsional rigidity strengthening structure of the vehicle body according to the second embodiment of the present invention. In this embodiment, the two ends of the floor beam 30 are provided with the second positioning connection portion 31, that is, the two ends of the floor beam 30 are connected with the connecting piece 20 and the side reinforcement 10, so the connection The member 20 forms a U-shaped structure with the side wall reinforcement member 10 and the floor beam 30, which can greatly improve the torsional rigidity of the vehicle body. The remaining parts are the same as those in the above-mentioned embodiments, and will not be repeated here.

The utility model provides a vehicle body torsional rigidity strengthening structure, which includes a side wall reinforcement, a floor beam and a connecting piece, and the floor beam and the side wall reinforcement are positioned and connected through the bolts and the connecting piece to form a U-shaped structure, which not only A set of fixtures can be saved, and the torsional rigidity of the vehicle body can be greatly improved.

At the same time, the utility model effectively reduces the weight of the torsional rigidity strengthening structure of the vehicle body and reduces the cost through the design of the U-shaped height of the side wall reinforcement and the design of the lightening part on the floor beam.

The preferred embodiment of the utility model has been described above with reference to the accompanying drawings. Those skilled in the art can realize the utility model in various variants without departing from the scope and essence of the utility model. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield a still further embodiment. The above are only preferred and feasible embodiments of the present utility model, and are not intended to limit the scope of rights of the present utility model. All equivalent changes made by using the description and drawings of the utility model are included in the scope of rights of the utility model. Inside.

Claims (10)

1. a body torsional rigdity is strengthened structure, it is characterized in that, comprising:

Gusset reinforcement, an end are provided with first section that is located by connecting, and its lower surface is used for being connected with body side wall;

Floor crossmember, at least one end are provided with second section that is located by connecting, and its lower surface is used for being connected with body platform;

Attaching parts is used for connecting described gusset reinforcement and floor crossmember, and an end is provided with the corresponding with described the first location division the 3rd section that is located by connecting, and the other end is provided with and described second the 4th corresponding section that is located by connecting of section that is located by connecting.

2. body torsional rigdity according to claim 1 is strengthened structure, it is characterized in that, also comprise the first bolt and the second bolt, described the first bolt passes described first section that is located by connecting of section and the 3rd that is located by connecting, and is used for fixing described gusset reinforcement and attaching parts; Described the second bolt passes described second section that is located by connecting of section and the 4th that is located by connecting, and is used for fixing described floor crossmember and attaching parts.

3. body torsional rigdity according to claim 1 is strengthened structure, it is characterized in that, the two ends of described floor crossmember all are provided with second section that is located by connecting, and described attaching parts and described gusset reinforcement and described floor crossmember consist of U-shaped structure.

4. body torsional rigdity according to claim 1 is strengthened structure, it is characterized in that at least one end of described attaching parts is provided with welding edge, is used for and described gusset reinforcement or the welding of described floor crossmember.

5. body torsional rigdity according to claim 1 is strengthened structure, it is characterized in that, the cross-sectional plane of described attaching parts is U-shaped, and the described the 3rd be located by connecting section and the 4th section of being located by connecting is arranged on described U-shaped bottom, and described attaching parts longitudinally is bent to form camber.

6. body torsional rigdity according to claim 5 is strengthened structure, it is characterized in that, is provided with turnup structure in described two U-shaped ends, is used for being connected with described body side wall and body platform.

7. body torsional rigdity according to claim 1 is strengthened structure, it is characterized in that, the cross-sectional plane of described gusset reinforcement is U-shaped, described first section of being located by connecting is arranged on described U-shaped bottom, and described gusset reinforcement is provided with first and is located by connecting the U-shaped height of an end of section greater than the U-shaped height of the other end.

8. body torsional rigdity according to claim 7 is strengthened structure, it is characterized in that, is provided with turnup structure in described two U-shaped ends, is used for linking to each other with described body side wall; Or be provided with projection at described gusset reinforcement in that the described first U-shaped bottom of an end that is located by connecting section is not set, be used for linking to each other with described body side wall.

9. body torsional rigdity according to claim 1 is strengthened structure, it is characterized in that the cross-sectional plane of described floor crossmember is U-shaped, described second section of being located by connecting is arranged on described U-shaped bottom, be provided with turnup structure in described two U-shaped ends, be used for linking to each other with described body platform.

10. body torsional rigdity according to claim 9 is strengthened structure, it is characterized in that described U-shaped bottom or side are provided with loss of weight section, is used for alleviating the weight of described floor crossmember.

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