CN115008985A - Frameless sealing strip corner wrapping structure - Google Patents

Abstract

The invention belongs to the technical field of automotive sealing strips, and specifically discloses a frameless sealing strip corner wrapping structure, comprising a corner and a sealing strip, the corner is provided with a accommodating groove for the end of the sealing strip to be inserted into and interference fit, After the sealing strip is inserted into the accommodating groove, the corner end and the surface of the sealing strip smoothly transition. By adopting the solution of the present invention, the problem of high cost of integral processing of the corner and the sealing strip can be solved.

Description

Frameless sealing strip corner wrapping structure

technical field

The invention belongs to the technical field of automobile sealing strips, and particularly relates to a frameless sealing strip corner wrapping structure.

Background technique

The door sealing strip assembly is used to fill various gaps between the components of the car body, and plays the role of shock absorption, waterproof, dustproof, sound insulation, etc., and improves the comfort of the driving experience. The door sealing strip assembly is installed on the perimeter of the door and window frame. Position, the door sealing strip assembly generally includes a plurality of sealing strips. At the corners of the door and window frames, different sealing strips need to be connected through the corners to form a closed ring. The corners need to seal, hide the ugly, and beautify the appearance. .

In the prior art, the door sealing strip assembly is usually processed in one piece, that is, the door sealing strip in the form of a closed ring is directly processed, but the integrated processing has the problems of long processing flow and complicated processing technology caused by the complex structure, resulting in processing costs. higher.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the present invention provides a frameless sealing strip corner wrapping structure, so as to solve the problems of long processing flow and complicated processing technology caused by complex structure in integrated processing.

To achieve the above object, the present invention has adopted the following technical solutions:

The frameless sealing strip corner wrapping structure includes a corner and a sealing strip. The corner is provided with an accommodating groove for the end of the sealing strip to be inserted into and interference fit. After the sealing strip is inserted into the accommodating groove, the end of the corner and the sealing strip are Smooth transition of surfaces.

Compared with the prior art, the present invention has the following beneficial effects:

In this scheme, the corners and the sealing strip are processed separately and assembled after the processing is completed. When assembling, insert the end of the sealing strip into the accommodating groove opened on the corner to complete the connection between the corner and the sealing strip. In addition, by controlling the depth of the sealing strip inserted into the accommodating groove, the connection stability of the sealing strip and the corner can be ensured.

When the end of the sealing strip is inserted into the accommodating groove, a step is formed between the end face of the corner end and the surface of the sealing strip. When the corner and the sealing strip are squeezed, if they are squeezed to the end face of the corner end, they will The movement of the joint angle relative to the sealing strip may result in a gap between the joint end of the joint corner and the sealing strip, resulting in insufficient sealing. Therefore, in this solution, through the smooth transition between the corner end and the surface of the sealing strip, extrusion to the corner end is avoided, and the fitting effect of the corner and the sealing strip is better and more beautiful.

Further, the wall thickness of one end of the accommodating groove where the sealing strip is inserted is less than 3 mm.

Beneficial effect: By reducing the wall thickness of the end of the accommodating groove, the end of the accommodating groove and the surface of the sealing strip can more easily meet the requirement of smooth transition.

Further, the accommodating groove is provided with an opening along the length direction of the sealing strip, and both sides of the free end of the accommodating groove are provided with limiting parts for limiting the sealing strip; one end of the sealing strip inserted into the accommodating groove is installed with The buckle for automobile sheet metal connection, the opening is for the buckle to extend.

Beneficial effects: the sealing strip is connected to the door sheet metal through the buckle, and the depth of the sealing strip inserted into the accommodating groove is positioned by the position of the buckle. The setting of the limiting portion can, on the one hand, limit the separation of the sealing strip from the accommodating groove, and on the other hand, also have a certain limiting effect on the buckle.

Further, a clamping strip is fixed on the inner wall of the accommodating groove, and a clamping groove in which the clamping strip is embedded is opened on the sealing strip.

Beneficial effects: after the sealing strip is inserted into the accommodating groove, the clamping strip is clamped into the clamping groove, thereby improving the connection strength of the sealing strip and the joint angle by means of clamping. Sealing effect between corner joints.

Further, the cross-section of the clipping strip is a right triangle or a right-angled trapezoid, the wedge surface of the clipping strip is arranged on the side of the clipping strip facing away from the inner wall of the accommodating slot, and the side wall of the clipping slot is matched with the side wedge surface of the clipping strip.

Beneficial effects: When the sealing strip is inserted into the accommodating groove, the sealing strip needs to pass through the clamping strip, and the wedge surface has a certain guiding effect, which is convenient for the sealing strip to be inserted into the accommodating groove. The right-angle edge of the strip can better clamp the sealing strip, and improve the connection strength between the sealing strip and the corner. In addition, even if water enters the gap between the sealing strip and the corner, the water is blocked by the clip and cannot enter deeper, and at the same time, when the corner is squeezed, the clip squeezes the slot, and the gap between the two The wedge surfaces squeeze each other, which will also provide a certain guiding effect for the water, and squeeze out the water entering the snap groove.

Further, a drainage groove is communicated with the bottom of the clamping groove, and the drainage groove is communicated with the outside of the sealing strip.

Beneficial effects: through the setting of the drainage groove, if water enters the clamping groove, it can be discharged to the outside through the drainage groove, so as to avoid the accumulation of water in the clamping groove.

Further, the outer side of the sealing strip is provided with a thickened part, and the end of the thickened part protrudes from the surface of the sealing strip and is used to abut against the end surface of the accommodating groove.

Beneficial effect: by setting the thickened part, it is more convenient to meet the requirement of smooth transition between the corner end and the surface of the sealing strip, reducing the requirement for the wall thickness of the accommodating groove, making the processing easier, and avoiding too small wall thickness of the accommodating groove. Problems with damage or movement relative to the seal.

Further, the end face of the thickened portion and the end face of the accommodating groove are wedge-fitted.

Beneficial effects: when the joint angle is squeezed, the wedge surfaces of the joint corner and the thickened part are pressed against each other, so as to improve the fit between the joint corner and the sealing strip, thereby improving the sealing effect.

Further, the wedge surface of the thickened portion is set such that the end of the end surface of the thickened portion facing away from the sealing strip is inclined toward the end away from the accommodating groove.

Beneficial effect: The setting of the wedge surface can also provide a certain guiding effect for the water, and prevent the water from entering deeper along the wedge surface on the surface of the sealing strip.

Description of drawings

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a rear view of the embodiment of the present invention.

FIG. 3 is a cross-sectional view of an embodiment of the present invention.

FIG. 4 is an enlarged view of part A in FIG. 3 .

FIG. 5 is a cross-sectional view of another arrangement of the embodiment of the present invention.

FIG. 6 is an enlarged view of part B in FIG. 5 .

FIG. 7 is a cross-sectional view of another arrangement of the embodiment of the present invention.

In the figure: 1. Corner; 2. Sealing strip; 3. Receiving slot; 4. Buckle; 5. Limiting part; 6. Clipping strip; 7. Drainage groove;

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings, and specific embodiments will be given.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, the frameless sealing strip corner wrapping structure includes a corner 1 and a sealing strip 2. The corner 1 is provided with an end portion of the sealing strip 2 for insertion and interference In the matching accommodating groove 3, after the sealing strip 2 is inserted into the accommodating groove 3, the end of the corner 1 and the surface of the sealing strip 2 smoothly transition, and the wall thickness of the end of the accommodating groove 3 where the sealing strip 2 is inserted is less than 3 mm.

When assembling, insert the sealing strip 2 into the accommodating groove 3, the joint corner 1 and the sealing strip 2 are made of deformable rubber, so when inserting the sealing strip 2, you can squeeze the sealing strip 2 or pull the joint corner 1 to To make the entrance of the accommodating groove 3 larger, insert the sealing strip 2 into the accommodating groove 3. After the sealing strip 2 is inserted into the accommodating groove 3, the sealing strip 2 and the contact angle 1 are reset to form an interference fit, so that the contact angle 1 can be It is more closely attached to the surface of the sealing strip 2 to improve the sealing effect.

Through the smooth transition between the end of the corner 1 and the surface of the sealing strip 2, extrusion to the end of the corner 1 is avoided, and the fitting effect of the corner 1 and the sealing strip 2 is better and more beautiful. The wall thickness of the end makes it easier for the end of the accommodating groove 3 and the surface of the sealing strip 2 to meet the requirement of smooth transition.

In another embodiment of the present invention, as shown in FIG. 2 , the accommodating groove 3 is provided with an opening along the length direction of the sealing strip 2 , and the accommodating groove 3 is located on both sides of the free end of the opening for limiting the sealing strip 2 . In the limiting part 5 of the position, the end of the sealing strip 2 inserted into the accommodating groove 3 is installed with a buckle 4 for connecting with the sheet metal of the automobile, and the opening is for the buckle 4 to extend.

When assembling, first insert the sealing strip 2 into the accommodating groove 3, and then assemble the corner 1 and the sealing strip 2 to the door sheet metal. The strip 2 carries out certain restrictions to prevent the sealing strip 2 from being separated from the accommodating groove 3 . The sealing strip 2 is connected to the door sheet metal through the buckle 4 , and the depth of the sealing strip 2 inserted into the accommodating groove 3 is positioned by the position of the buckle 4 .

In another embodiment of the present invention, as shown in FIG. 5 , a clipping strip 6 is fixed on the inner wall of the accommodating slot 3 , a clipping slot in which the clipping strip 6 is embedded is opened on the sealing strip 2 , and the sealing strip 2 is inserted into the accommodating slot. 3, the clipping strip 6 is clipped into the clipping groove, and the connection strength between the sealing strip 2 and the joint angle 1 is improved by means of clipping. The specific setting of the clamping strip 6 is as follows: as shown in FIG. 6 , the cross section of the clamping strip 6 is a right-angled triangle or a right-angled trapezoid. In this embodiment, the cross-section of the clamping strip 6 is a right-angled trapezoid as an example. It is consistent with the cross-sectional shape of the clip strip 6 . The wedge surface of the clamping strip 6 is arranged on the side of the clamping strip 6 that faces away from the inner wall of the accommodating groove 3, that is, taking the direction shown in FIG. , the left side is the inner wall of the accommodating groove 3, the wedge surface of the clamping strip 6 is arranged on the lower side of the clamping strip 6 and faces to the right side, the side wall of the clamping groove and the side wedge surface of the clamping strip 6 cooperate to seal After the strip 2 is inserted into the accommodating groove 3 , the sealing strip 2 can be better clamped by the right-angled edge of the clipping strip 6 , thereby improving the connection strength between the sealing strip 2 and the joint angle 1 . The bottom of the clamping groove is connected with a drainage groove 7, and the drainage groove 7 is connected to the outside of the sealing strip 2. Through the setting of the drainage groove 7, if water enters the clamping groove, it can be discharged to the outside through the drainage groove 7 to avoid water in the clamping groove. accumulated inside.

In another embodiment of the present invention, as shown in FIG. 7 , a thickened part 8 is provided on the outer side of the sealing strip 2 , and the end of the thickened part 8 protrudes from the surface of the sealing strip 2 and is used to abut against the end surface of the accommodating groove 3 , Through the arrangement of the thickened portion 8, it is more convenient to meet the requirement of smooth transition between the end of the corner 1 and the surface of the sealing strip 2, which reduces the requirement for the wall thickness of the accommodating groove 3, makes the processing easier, and avoids the excessive wall thickness of the accommodating groove 3. Small problem of easy damage or movement relative to the sealing strip 2. The end face of the thickened portion 8 is matched with the wedge surface of the end face of the accommodating groove 3. The wedge surface of the thickened portion 8 is specifically set as follows: the end of the end face of the thickened portion 8 facing away from the sealing strip 2 is inclined toward the end away from the accommodating groove 3, as shown in Fig. The direction shown in 7 is taken as an example, the upper end of the thickened part 8 is matched with the end face of the accommodating groove 3, and the upper end of the thickened part 8 is in a state of being inclined from left to low and right to high. The wedge surfaces of the thickened part 8 squeeze each other to improve the fit between the corner 1 and the sealing strip 2, and also provide a certain guiding effect for the water, and prevent the water from entering deeper along the wedge surface of the thickened part 8 surface.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (9)

1. Frameless sealing strip connects angle clad structure, its characterized in that: including connecing angle and sealing strip, set up on the connecing angle and supply the sealing strip tip to insert and interference fit's holding tank, after the sealing strip inserts the holding tank, connect angle tip and sealing strip surface smooth transition.

2. The rimless weatherstrip corner-joint cladding structure according to claim 1, wherein: the wall thickness of one end of the accommodating groove for inserting the sealing strip is smaller than 3 mm.

3. The rimless weatherstrip corner-joint cladding structure according to claim 1, wherein: an opening is formed in the accommodating groove along the length direction of the sealing strip, and limiting parts used for limiting the sealing strip are arranged on two sides of the free end of the accommodating groove, which is located at the opening; the buckle that is used for with car sheet metal connection is installed to the one end that the sealing strip inserted in the holding tank, and the opening supplies the buckle to stretch out.

4. The rimless weatherstrip corner-joint cladding structure according to claim 1, wherein: the holding tank inner wall is fixed with the joint strip, sets up the joint groove of joint strip embedding on the sealing strip.

5. The rimless weatherstrip corner wrap according to claim 4, wherein: the cross-section of joint strip is right triangle or right trapezoid, and the scarf setting of joint strip is in the one side of joint strip holding tank inner wall dorsad, and the lateral wall in joint groove cooperates with the side scarf of joint strip.

6. The rimless weatherstrip corner wrap according to claim 4, wherein: the bottom of the clamping groove is communicated with a water drainage groove, and the water drainage groove is communicated with the outside of the sealing strip.

7. The rimless weatherstrip corner-joint cladding structure according to claim 1, wherein: the sealing strip outside is equipped with the thickening portion, and the tip of thickening portion is outstanding sealing strip surface and is used for offseting with the terminal surface of holding tank.

8. The rimless weatherstrip corner wrap according to claim 7, wherein: the end face of the thickened part is matched with the end face wedge surface of the accommodating groove.

9. The rimless weatherstrip corner wrap according to claim 8, wherein: the wedge surface of the thickened part is arranged as follows: the end face of the thickened portion, which faces away from the sealing strip, is inclined towards the end far away from the accommodating groove.

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