CN203497024U

CN203497024U - Reinforcing structure for lower sill beam of automotive body

Info

Publication number: CN203497024U
Application number: CN201320371531.2U
Authority: CN
Inventors: 黄勇; 曹伟中; 贺志杰; 高庆林; 李启斌
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2013-06-26
Filing date: 2013-06-26
Publication date: 2014-03-26
Anticipated expiration: 2023-06-26

Abstract

The utility model relates to a lower sill beam structure of a vehicle, in particular to a reinforcing structure for a lower sill beam of an automotive body. The reinforcing structure comprises a framework approximately fitted with the inner wall of an inner cavity, and reinforcing adhesive arranged between the framework and the inner wall of the inner cavity and is heated and expanded to fix the framework in the inner cavity. By the technical scheme, the reinforcing structure is arranged in the inner cavity of the lower sill beam, the adjustment on the structural layout of the lower sill beam is avoided, and the reinforcing structure is conveniently mounted in the lower sill beam by matching the framework with the reinforcing adhesive.

Description

Under auto body, sill strip is with strengthening structure

Technical field

The utility model relates to threshold girder construction under a kind of vehicle, relates in particular to sill strip reinforcement structure under a kind of auto body.

Background technology

Development along with auto trade, the safety of automobile is progressively paid attention to by the more consumer group, the reinforcement of automotive body structure becomes one of principal element affecting vehicle safety, yet be subject to the structural limitations of Automobile Body Modeling and all parts, under vehicle body, the many places of sill strip can not be strengthened or be difficult for strengthening.Existing adding in strong method sill strip under vehicle body, some sheet metal components of increase that adopt are strengthened more, the enforcement of which needs production scene to be synchronously equipped with the installation that frock clamp could be realized parts, frock and personnel's running cost have been increased, and productive temp be difficult for to ensure, in addition, also have to adopt and adjust local structure and realize stiffening effect, the change of its structure certainly will affect the change to sill strip manufacturing process or flow process under vehicle body, has caused equally the waste in cost and man-hour.

Utility model content

The purpose of this utility model be to provide a kind of under not affecting, under the prerequisite of sill strip layout structure, strengthen under under the auto body of threshold beam strength sill strip with strengthening structure.

For achieving the above object, under auto body of the present utility model, sill strip is with strengthening structure, be arranged in the inner chamber of lower sill strip, it is characterized in that: it comprises the skeleton identical with the inwall of inner chamber, and be arranged between skeleton and the inwall of inner chamber, skeleton is fixed on to the strong rubber that adds in inner chamber after expanded by heating, on skeleton, be fixed with fixing screw, the described strong rubber that adds is interconnected to constitute by a plurality of striped cell that take at skeleton outside face.

As structure qualification of the present utility model, the inwall free-running fit of described skeleton and inner chamber.

As the restriction to aforesaid way, the gap between skeleton and the inwall of inner chamber is 2.5mm.

As the improvement to aforesaid way, on skeleton, be provided with the positioning groove embedding for striped cell.

Adopt the technical solution of the utility model, by set up reinforcement structure in the inner chamber of lower sill strip, avoided the adjustment to lower threshold girder construction layout, and strengthen structure by skeleton, add the fit system of strong rubber, be convenient to reinforcement structure of the present utility model to be arranged in lower sill strip; By setting up fixing screw, realized the installation location of skeleton in lower sill strip; The inwall free-running fit of skeleton and inner chamber, especially gap is set as 2.5mm, and the inner wall shape of the gabarit of skeleton and lower sill strip is coincide substantially, has guaranteed the homogeneity in gap between skeleton and lower sill strip, and sill strip electrophoresis liquid in electrophoresis process under vehicle body is fully circulated; Adding strong rubber is connected and composed by a plurality of striped cell, guaranteeing to add strong rubber to the firm installation of skeleton simultaneously, actv. has been saved the consumption that adds strong rubber, saved cost, set up positioning groove, guarantee the precision that is connected of striped cell and skeleton, further guaranteed the installation stability of skeleton in lower sill strip.

Accompanying drawing explanation

Fig. 1 is the perspective view of the utility model embodiment;

Fig. 2 is the structural representation under Fig. 1 disassembled form;

Fig. 3 is the structural representation after sill strip assembling under the utility model and vehicle;

Fig. 4 be in Fig. 3 A-A to schematic diagram.

In figure: 1, skeleton; 11, positioning groove; 2, add strong rubber; 21, striped cell; 3, fixing screw; 4, lower sill strip inner panel; 5, lower sill strip brace panel.

The specific embodiment

Under the auto body that the present embodiment relates to, sill strip is with strengthening structure, and it is arranged in the inner chamber of lower sill strip, and by Fig. 1, in conjunction with shown in Fig. 2, it comprises skeleton 1, and be arranged on skeleton 1 outside face, be heated after the inflatable strong rubber 2 that adds.

Wherein, skeleton 1 has and the inwall of lower sill strip inner chamber as described below identical shape substantially, and it adopts the materials such as nylon through injection mo(u)lding.Add strong rubber 2 for skeleton 1 being fixed in the inner chamber of lower sill strip, it is inflatable when being heated, after so that expand add strong rubber 2 for skeleton 1 provide one with the fixing expanding force of lower sill strip inner chamber, in the present embodiment, adding strong rubber 2 is interconnected to constitute by a plurality of striped cell 21 that take at skeleton 1 outside face, as seen from Figure 2, each striped cell 21 is carried out layout setting along a periphery of skeleton 1, and whole close up skeleton 1 is taken on.Accordingly, for realizing the installation location of striped cell 21 on skeleton 1, on skeleton 1, be provided with accordingly the positioning groove 11 embedding for striped cell 21.

On skeleton 1, be fixed with fixing screw 3, in the present embodiment, fixing screw 3 is two, corresponding, is provided with the mounting hole inserting for fixing screw 3 on lower sill strip.During fabrication, add strong rubber 2 and adopt quadric injection mould and skeleton 1 to form an integral body, then carry out secondary assembling with fixing screw 3, form a total member.

In use, by Fig. 3 in conjunction with shown in Fig. 4, there is shown the keystone configuration of the lower sill strip of vehicle, it comprises mutual fastening and forms lower sill strip inner panel 4 and the lower sill strip brace panel 5 of inner chamber, and reinforcement structure of the present utility model is fixed in the inner chamber that said two devices forms, wherein, free-running fit between skeleton 1 and the inwall of inner chamber, and gap width is defined as 2.5mm, the gap homogeneity while guaranteeing between the two, make the abundant circulation of sill strip electrophoresis liquid in electrophoresis process under vehicle body.By the skeleton 1 with adding strong rubber 2 by after being inserted into fixing screw 3 in positioning groove and being positioned in inner chamber, during hyperthermia drying vehicle body, add strong rubber 2 expanded by heating, the inwall of sill strip inner chamber under skeleton 1 and vehicle body is pasted together, and then play and strengthen lower threshold beam action.

Claims

1. under an auto body, sill strip use is strengthened structure, be arranged in the inner chamber of lower sill strip, it is characterized in that: it comprises the skeleton identical with the inwall of inner chamber, and be arranged between skeleton and the inwall of inner chamber, skeleton is fixed on to the strong rubber that adds in inner chamber after expanded by heating, on skeleton, be fixed with fixing screw, the described strong rubber that adds is interconnected to constitute by a plurality of striped cell that take at skeleton outside face.

2. under auto body according to claim 1, sill strip, with strengthening structure, is characterized in that: the inwall free-running fit of described skeleton and inner chamber.

3. under auto body according to claim 2, sill strip, with strengthening structure, is characterized in that: the gap between described skeleton and the inwall of inner chamber is 2.5mm.

4. under auto body according to claim 1, sill strip, with strengthening structure, is characterized in that: on skeleton, be provided with the positioning groove embedding for striped cell.