CN110733319A

CN110733319A - novel automobile C-pillar frame sealing structure

Info

Publication number: CN110733319A
Application number: CN201911148257.0A
Authority: CN
Inventors: 陈红伟; 尤敏杰; 王荣华; 马庆; 王金龙; 彭亮亮; 张振科
Original assignee: Jianxin Zhaos Technology Co Ltd
Current assignee: Jianxin Zhaos Technology Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-01-31

Abstract

The invention discloses a novel sealing structure of a C-shaped pillar frame of an automobile, which comprises a sealing strip body and a buckle, wherein the sealing strip body consists of a framework, an upper soft edge and a lower soft edge, the buckle consists of a lower body, an end cover and an upper body, the upper soft edge of the sealing strip is parallel to a rear and an automobile body side wall and plays a role in beautifying and sealing, the framework is provided with a protruding rib in the length direction and plays a role in enhancing the strength of the sealing strip, the lower soft edge extends out of the protruding rib to cover the buckle and plays a role in beautifying and enhancing the strength, and the sealing strip is fixed to the rear through the buckle.

Description

novel automobile C-pillar frame sealing structure

Technical Field

The invention relates to the field of automobile sealing, in particular to a sealing structure on automobile frames.

Background

, there is a gap between the belt line region of most car C post on the market at present, namely rear car and the side wall, there is not any sealing measure, make the sealing performance of the whole car greatly reduced, has seriously influenced passenger's comfort level, and the sealing mode of some high-end car types is as shown in figure 1, fix the sealing strip body to the circumference of back through the buckle, paste closely and play the sealing effect through the extrusion of sealing strip body and car body side wall.

Disclosure of Invention

The invention aims to provide automobile C-pillar frame sealing structures which can eliminate gaps between a rear automobile and side walls and do not influence the overall attractiveness of an automobile body.

The C-pillar frame sealing structure of the automobile comprises a sealing strip body and a buckle, wherein the sealing strip body consists of a framework, an upper soft edge and a lower soft edge, and preferably, the sealing strip body is formed by injection molding through a double-color injection molding process.

The cross section of the framework is of an inverted L-shaped structure, the upper end of the framework is fixedly connected with an upper soft edge, the lower end of the framework is fixedly connected with a lower soft edge, protruding ribs in the length direction are arranged in the middle of the framework, sections of clearance distance are arranged between the framework and a rear , through holes for installing buckles are formed in the positions, close to a rear , of the side edges and evenly distributed in the length direction of the periphery, the framework is made of hard materials, preferably PP, the cross section of the upper soft edge is of an inverted Z-shaped structure, the upper end of the upper soft edge is parallel to a rear and the side wall of the vehicle body, the end close to the rear and the end close to the side wall of the vehicle body are both extruded, the lower end of the upper soft edge is fixed with the framework, preferably TPV, the cross section of the lower soft edge is of an inverted T-shaped structure, the middle end of the upper soft edge is fixed with the framework, the end close to the rear is provided with an extruded side wall, the end of the upper body of the buckle, the lower soft edge.

The buckle is formed by injection molding of bodies, and preferably, hard material PA66 is adopted.

The sealing strip comprises a lower body, an upper body, a sealing strip framework, a lower body, a middle end cover, a rectangular straight rod and a rectangular straight rod, wherein;

the distance from the grooves at the tail ends of the two sides of the upper body of the buckle to the end cover is smaller than the thickness of the sealing strip framework, namely the buckle and the sealing strip framework are connected in an interference fit mode, the grooves at the tail ends of the two sides of the lower body of the buckle extend to the end cover and are lower than the outer edge of the end cover, namely the buckle and the rear are connected in an interference fit mode.

Thirdly, compared with the prior art, the invention has the advantages that:

and fourthly, the soft edge on the sealing strip is parallel to the rear and the side wall, and compared with the step difference in the prior art, the connection between the vehicle and the side wall is smoother and more attractive.

And fifthly, the middle of the sealing strip framework is provided with the convex rib, so that compared with the prior art, the structural strength of the sealing strip is improved.

Sixthly, the lower soft edge of the sealing strip extends to form a protruding rib to cover the buckle, so that the influence on the appearance caused by the exposure of the buckle can be prevented.

Compared with the single-layer buckle structure in the prior art, the buckle upper body, the end cover and the lower body structure can be used for facilitating the disassembly and assembly of the sealing strip and enhancing the fixing effect of the sealing strip.

Description of the drawings

Fig. 1 is a sectional structural view of a conventional seal structure;

FIG. 2 is a cross-sectional structural view of the seal structure of the present invention;

FIG. 3 is a front view of the buckle of the present invention;

FIG. 4 is a side view of the clasp of the present invention;

FIG. 5 is a top view of the clasp of the present invention.

The figure shows that the sealing strip comprises a framework 11, an upper soft edge 12, a lower soft edge 13, a framework protruding rib 111, a framework through hole 112, an upper soft edge left end face 121, an upper soft edge right end face 122, a lower soft edge right end face 131, a lower soft edge left end face 132, a sealing strip body 2, a buckle 3, a buckle lower body 31, a buckle end cover 32, a buckle upper body 33, a vehicle 4 and a vehicle body side wall 5.

Detailed Description

The invention is further illustrated in by the following detailed description.

The invention provides technical schemes, and the novel automobile C-pillar frame sealing structure comprises a sealing strip body 2 and a buckle 3, wherein the sealing strip body 2 comprises a framework 11, an upper soft edge 12 and a lower soft edge 13, and the buckle 3 comprises a lower body 31, an end cover 32 and an upper body 33.

The novel sealing strip can be further steps, the cross section of the framework 11 is of an inverted L-shaped structure, the upper end of the framework is fixedly connected with an upper soft edge 12, the lower end of the framework is fixedly connected with a lower soft edge 13, convex ribs 111 in the length direction are arranged in the middle of the framework, sections of clearance distance are arranged between the convex ribs and the rear section of the convex ribs and are used for increasing the overall strength of the sealing strip framework, through holes 112 for installing buckles are formed in positions where the side edges are tightly attached to the rear , the through holes 112 are evenly distributed in the length direction of the periphery (the through holes 112 are evenly distributed in the extending direction of the frame of the vehicle) and are used for installing the buckles 3 and are fixed to the rear , the cross section of the upper soft edge 12 is of an inverted Z-shaped structure, the upper end of the upper soft edge is parallel to the rear and the side wall of the vehicle body, the lower end of the framework 11 is fixed, the cross section of the lower soft edge is of an inverted T-shaped structure, the middle end of the lower soft edge is fixed with.

The adverse phenomena of heavy closing , lip protrusion, depression and the like caused by poor sheet metal manufacturing and worker assembly tolerance are considered, CAE analysis and verification are used for solving the problems that the left end surface 121 tightly attached to the upper soft edge 12 and the rear 4 and the right end surface 122 tightly attached to the side wall 5 of the automobile body are designed to be in extruded interference fit, the tight attachment and the no gap between the upper soft edge 12 of the sealing strip and the rear 4 and the side wall 5 of the automobile body are guaranteed, and the left end surface 132 tightly attached to the lower soft edge 13 and the rear 4 is designed to be in extruded interference fit, so that the tight attachment and the sealing between the lower soft edge 13 of the sealing strip and the rear 4 are guaranteed.

In order to , the sealing effect of the sealing structure is enhanced, the novel use can also be set in steps, the framework 11 is made of hard materials, preferably PP, so that the overall strength of the framework is improved, the upper soft edge and the lower soft edge are made of flexible soft materials, preferably TPV, so that the overall sealing effect is improved, and the upper soft edge 13, the lower soft edge 12 and the framework 11 are preferably molded through injection molding by adopting a double-shot injection molding process , so that the overall strength and the sealing effect are improved.

Ten , use this novel in-process of use, because buckle 3 about the body all has the joint effect, the user can install on back 4 earlier buckle 3, aim at buckle 3 with sealing strip body 2 and install, then can not pull down with buckle 3 when tearing open sealing strip body 2, can pull down sealing strip body 2 alone, buckle 3 still installs on back 4 because the dismouting degree of difficulty between buckle and the sealing strip is far less than between buckle and the back panel beating, it is more laborsaving to play the convenient dismouting in comparison with prior art buckle and sealing strip , and buckle 3 and back panel beating 4 often appear the damage when dismouting, buckle 3 indirectly improved economic nature, can repeatedly with sealing strip body 2 joint, can not appear damaging.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the concept of the present invention, and these modifications and decorations should also be regarded as being within the protection scope of the present invention.

Claims

The novel automobile C-pillar frame sealing structure is characterized by comprising a sealing strip body (2) and a buckle (3), wherein the sealing strip body (2) consists of a framework (11), an upper soft edge (12) and a lower soft edge (13), preferably, the sealing strip body is formed by injection molding through a double-color injection molding process body, and the buckle (3) consists of a lower body (31), an end cover (32) and an upper body (33);

the section of skeleton (11) is the type of falling L structure, and soft limit (12) are connected to its upper end fixed connection, and soft limit (13) are down connected to lower extreme fixed connection, and the intermediate position has protruding muscle (111) on the length direction, and has sections clearance with back (4), has through-hole (112) that are used for installing buckle (3) in the position of side subsides back (4), evenly distributed in the border length direction.
2. The novel automobile C-pillar frame seal structure of claim 1, wherein the skeleton (11) is made of hard material, preferably PP.
3. The novel automobile C-pillar frame seal structure of claim 1, wherein the section of the upper soft edge (12) is an inverted Z-shaped structure, the upper end of the upper soft edge is parallel to the rear (4) and the body side wall (5), the left end face (121) close to the rear (4) and the right end face (122) close to the body side wall (5) are both extruded, the lower end of the upper soft edge is fixed with the framework (11), and the upper soft edge (12) is made of flexible soft materials, preferably TPV.
4. The novel automobile C-pillar frame seal structure of claim 1, wherein the section of the lower soft edge (13) is an inverted T-shaped structure, the middle end of the lower soft edge is fixed with the framework (11), the left end face (132) of the lower soft edge close to the rear (4) is extruded, the right end face (131) of the lower soft edge extends upwards to exceed the buckle upper body (33) and has sections of clearance distance with the buckle upper body (33) and the automobile body side wall (5), and the lower soft edge (13) is made of flexible soft materials, preferably TPV.
5. A novel automobile C-pillar frame sealing structure according to claim 1, wherein said lower body (31) of said clip is a flat arrow structure with grooves at both ends and fixed with a rectangular straight bar at the center and a middle end cap (32), said end cap (32) is a disk-shaped structure with gradually decreasing thickness in radial direction and diameter exceeding the lower body (31) and the upper body (33), said upper body (33) is a flat M-shaped structure with diameter smaller at both sides than the lower body (31) and grooves at both ends where the diameter is equal to the through hole (112) of the seal strip frame (11) and fixed with a rectangular straight bar at the center and a middle end cap (32), said arrow structure of the lower body (31) and the M-shaped structure of the upper body (33) are equal in thickness , said clip (3) is injection molded with , preferably PA 66.
6. The novel automobile C-pillar frame seal structure of claim 1 or 5, characterized in that the distance from the grooves at the two ends of the upper body (33) of the buckle to the end cap (32) is less than the thickness of the seal strip framework (11), namely, the buckle (3) and the seal strip framework (11) are connected in an interference fit manner, the grooves at the two ends of the lower body (31) of the buckle extend to the end cap (32) and are lower than the outer edge of the end cap (32), namely, the buckle (3) and the rear (4) are connected in an interference fit manner.