CN109649293B - Three-section type single-tooth sealing strip - Google Patents
Three-section type single-tooth sealing strip Download PDFInfo
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- CN109649293B CN109649293B CN201811627049.4A CN201811627049A CN109649293B CN 109649293 B CN109649293 B CN 109649293B CN 201811627049 A CN201811627049 A CN 201811627049A CN 109649293 B CN109649293 B CN 109649293B
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- groove
- clamping lip
- edge
- sealing strip
- lip edge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/06—Sealing strips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/20—Sealing arrangements characterised by the shape
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seal Device For Vehicle (AREA)
- Gasket Seals (AREA)
Abstract
The invention provides a three-section type single-tooth sealing strip, which belongs to the field of automobile sealing strips and comprises a sealing strip body, wherein a groove for a metal plate to be inserted into is arranged in the middle of the sealing strip body, and a clamping lip edge for limiting the metal plate to be pulled out is arranged on the inner wall of the groove; the edge part of the free edge of one surface of the clamping lip edge facing the notch is a plane, and the inclination angle is larger than the integral inclination angle of the clamping lip edge; and a deformation groove for accommodating the overturning deformation of the clamping lip edge to the bottom of the groove is arranged on one side of the clamping lip edge facing to the bottom of the groove along the length direction of the clamping lip edge. The invention has the advantage of good plugging performance.
Description
Technical Field
The invention relates to the field of automobile sealing strips, in particular to a single-tooth sealing strip.
Background
With the development of the times, the objective requirements of the shortage crisis of traditional energy and environmental protection, the dependence of China on foreign oil is promoted year by year, at the moment, the positive automobile industry is in the stage of direction adjustment, and the development of new energy automobiles is the demand of the whole industry. The government of China also follows new situations, and relevant policies are formulated to encourage and support the development of new energy vehicles. Compared with the traditional automobile, the new energy automobile has new requirements on the weight of the automobile body, so that the material of the automobile body sheet metal is changed from steel to aluminum with lighter weight; however, due to the consideration of material characteristics, process limitations, and vehicle body strength and stability, the thickness of the aluminum sheet metal is improved compared with that of the steel sheet metal, and the thickness difference of sheet metal rabbets of different vehicle types is also changed correspondingly.
The thickness of a conventional steel vehicle body sheet metal seam allowance is 1.5mm-4.5mm, and the thickness variation is generally less than 3 mm; the thickness of the aluminum automobile body metal plate seam allowance is between 3mm and 9mm, the thickness variation can reach 6mm, the maximum thickness far exceeds the thickness of the conventional steel automobile body metal plate seam allowance, and the new requirement is provided for the automobile sealing strip. In order to satisfy the pull-out force performance that the product is easy to be loaded and difficult to be pulled out, the clamping lip edge has to have an interference amount of more than 1mm with the radius under the condition of the maximum radius, and meanwhile, enough deformation space is ensured under the condition of the maximum thickness so that the product can be smoothly assembled and inserted. Present grip ring limit cross-section is enclosed by two circular arcs, be used for on the orientation sealing strip with panel beating complex recess bottom setting, the atress is less smooth and easy when inserting, it is great to extract to give opposite power, as shown in fig. 2 and fig. 3 (the arrow indicates partial moving direction and atress direction), traditional automobile body uses the double tooth relatively easily in order to satisfy under the different panel beating thickness circumstances the power requirement of inserting, aluminium system automobile body is compared in traditional automobile body, its depth of insertion is close, but insert 2 times that its maximum width is traditional automobile body, produce easily between two teeth when adopting the double tooth structure and interfere and lead to unable smooth assembly, as shown in fig. 2. When the single-tooth structure is adopted, the two sides cannot be considered due to large variation, so that the pulling-out is easy when the width is minimum, and the insertion is difficult when the width is maximum.
Disclosure of Invention
The invention aims to solve the problem that the three-section type single-tooth sealing strip is provided aiming at the defects in the prior art, and solves the problem that the plugging performance of the sealing strip is insufficient when the thickness of an aluminum automobile body metal plate is large and the variation range between the maximum thickness and the minimum thickness is large.
In order to achieve the purpose, the invention adopts the following technical scheme:
the three-section type single-tooth sealing strip comprises a sealing strip body, a clamping lip edge and a sealing strip body, wherein the middle of the sealing strip body is provided with a groove for a metal plate to be inserted into, the clamping lip edge is arranged on the inner wall of the groove and used for limiting the metal plate to be pulled out, one side of the clamping lip edge is fixed on the side wall of the groove, and the other side of the clamping; the edge part of the free edge of one side of the clamping lip edge facing the notch is a plane, and the inclination angle is larger than the integral inclination angle of the clamping lip edge; planar set up the position make the panel beating when inserting not with the plane contact, the clamping lip limit is equipped with the deformation groove that holds clamping lip limit to recess bottom upset deflection along its length direction to one side of recess bottom.
Compared with the prior art, the invention has the following beneficial effects:
one side of the clamping lip edge is fixed on the groove, the edge of the free edge at one side facing the groove opening is a plane, the plane is connected with the fixed position by a conventional circular arc surface, and the plane inclination angle is larger relative to the clamping lip edge as a whole; the clamping lip faces to one side of the bottom of the groove, and a deformation groove is arranged at a position close to the fixed position; the joint of the plane and the arc surface and the deformation groove are two turning points to divide the clamping lip edge into three sections. When the thin spanner is inserted, the clamping lip edge is subjected to inward friction force, the plane part is upwards jacked and is not contacted with the spanner, and the arc surface of the second section is linearly stressed and is easy to insert; when the clamping lip edge is pulled out, the clamping lip edge is subjected to outward friction force, is pulled out to the plane and is subjected to stress with the metal plate, and meanwhile, the clamping lip edge integrally plays a supporting role, so that the clamping lip edge is difficult to pull out. When the thick metal plate is inserted, the pulling-out force is no longer a problem, and when the thick metal plate is inserted, the metal plate is warped upwards from the deformation groove and is easy to insert. Thereby meeting the requirements of inserting and pulling force on the thin and thick metal plates and adapting to the metal plates with larger thickness variation.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a matching sectional view of a double-tooth sealing strip when a steel sheet metal is thin;
FIG. 2 is an insertion cross-sectional view of a double-tooth sealing strip when a steel sheet metal is thick;
FIG. 3 is a drawing-out sectional view of a double-tooth sealing strip steel sheet metal with a thicker thickness;
FIG. 4 is an interference sectional view of an aluminum metal plate with double-tooth sealing strips;
FIG. 5 is a cross-sectional view of a conventional single-tooth sealing strip with a thinner aluminum sheet;
FIG. 6 is a cross-sectional view of the conventional single-tooth sealing strip with thicker aluminum sheet;
FIG. 7 is a cross-sectional view of the structure of the present invention;
FIG. 8 is a cross-sectional view of the thinner sheet metal of the present invention as it is inserted;
FIG. 9 is an enlarged sectional view taken at E of FIG. 8;
FIG. 10 is a cross-sectional view of the thinner sheet metal of the present invention when pulled out;
FIG. 11 is a cross-sectional view of the thicker sheet metal of the present invention as it is inserted;
FIG. 12 is a partial stressed cross-sectional view of the thicker sheet metal pull-out of the present invention;
fig. 13 is a bottom view, partially broken away, of the present invention.
The sealing strip comprises a sealing strip body 1, a clamping lip edge 2, a metal plate 3, a plane 4, a deformation groove 5, a friction edge 6, a framework 7 and a groove 8.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:
first, to facilitate the demonstration of the fit and stress conditions, fig. 1-12 of the present invention are cross-sectional views of the sealing strip, and fig. 13 is a top view of the lip in a free state, please note the length and width description. As shown in fig. 7-12, the present invention provides a three-stage single-tooth sealing strip, which includes a sealing strip body 1 having a groove 8 for inserting a metal plate 3 in the middle, and a clamping lip 2 disposed on the inner wall of the groove 8 for limiting the metal plate 3 to be pulled out, wherein one side of the clamping lip 2 is fixed to the side wall of the groove 8, and the other side is disposed to be inclined toward the bottom of the groove 8; the edge part of the free edge of one surface of the clamping lip edge 2 facing the opening of the groove 8 is a plane 4, and the inclination angle is larger than that of the whole clamping lip edge 2; and one side of the clamping lip edge 2 facing the bottom of the groove 8 is provided with a deformation groove 5 for accommodating the overturning deformation of the clamping lip edge 2 to the bottom of the groove 8 along the length direction.
According to the scheme, one side of the clamping lip edge 2 is fixed on the groove 8, the edge of the free edge of one side facing the opening of the groove 8 is a plane 4, the plane 4 is connected with the fixed position through a conventional circular arc surface, and the inclined angle of the plane 4 is larger than that of the clamping lip edge 2; a deformation groove 5 is arranged on one side of the clamping lip edge 2 facing the bottom of the groove 8 and close to the fixed position; the joint of the plane 4 and the arc surface and the deformation groove 5 are two turning points to divide the clamping lip edge 2 into three sections.
The inner wall of the groove 8 opposite to the clamping lip edge 2 is provided with a plurality of friction ribs 6, and the friction ribs 6 are arranged towards the bottom of the groove 8. When the metal strip is inserted, one side of the metal strip is in contact with the clamping lip edge 2, the other side of the metal strip is in contact with the side wall of the groove 8 opposite to the clamping lip edge 2, the friction between the side wall and the metal strip is larger than that between the side wall of the clamping lip edge 2 and the metal strip when the metal strip is inserted, and the metal strip is relatively smaller when the metal strip is pulled out. A friction edge 6 is arranged on the side wall of the clamping lip 2, the friction edge 6 also being arranged toward the bottom of the recess 8. When the wedge is inserted, the friction edge 6 and the clamping lip edge 2 are separated towards two sides respectively because the wedge pushes upwards. When pulled out, the two sides are folded downwards due to friction force, so that the two sides are more difficult to pull out when forming a supporting structure, as shown in figures 7-12.
The thickness of the part of the sizing material, which is contacted with the sheet metal 3, at the bottom of the groove 8 is larger than that at other positions, which is shown in a position H in figure 10. The side of the bottom of the groove 8 close to the friction edge 6 is inserted by the metal plate 3 and is pressed when the vehicle body shakes, so that the position is thicker than the position without being pressed beside. The lateral thinness allows to save a part of the material while giving a certain deformation space to the bottom of the recess 8.
A layer of framework 7 is arranged around a groove 8 in the sealing strip body 1, and the clamping lip edge 2 and the friction edge 6 are both within the reinforcing range of the framework 7. The section of the framework 7 is U-shaped to match the shape of the groove 8, and the clamping lip edge 2 and the friction edge 6 are brought into the range to ensure that the clamping lip edge and the friction edge are pulled out, and the side wall of the groove 8 cannot make large allowance towards two sides to ensure support.
Compared with a conventional vehicle body, the aluminum vehicle body has an insertion depth close to that of the conventional vehicle body, but the maximum insertion width is 2 times that of the conventional vehicle body, the width of the groove 8 and the width of the clamping lip 2 are increased in design, and when a double-tooth structure is adopted, interference (at a position B) is easily generated between two teeth, so that smooth assembly cannot be realized, as shown in fig. 4, and therefore, the conventional double-tooth structure is no longer feasible. The length of the clamping lip 2 in the W direction (W in fig. 4) is slightly smaller than the groove 8 because of the requirement that a certain interference amount (a cross section portion at a in fig. 1) of 1mm or more is required for the thin sheet metal 3. With a single tooth, the clamping lip 2 spans an increased extent due to the increased width of the groove 8. When the sheet metal 3 is thin, the interference of the clamping lip edge 2 is insufficient (at the position C), and the pull-out force is insufficient, as shown in figure 5; when panel beating 3 is thick, the clamping lip limit 2 is crowded tight to one side that faces the recess 8 bottom, and the space of warping is little, and D's position in figure 6 leads to the insertion force to need great, especially when wanting to overcome the not enough problem of interference through increasing clamping lip limit 2 thickness, even causes the condition of lip limit damage. In the three-section structure adopted by the invention, when the thinner metal plate 3 is inserted, the first section plane 4 is upwards jacked by the top of the metal plate 3 and is not in frictional contact with the side wall of the metal plate 3, and the second section arc part is in contact with the metal plate 3 and is convenient to insert, as shown in the E positions of figures 8 and 9; when the clamping lip edge is pulled out, the clamping lip edge 2 is pulled down by friction, the first section plane 4 is in contact with the side wall of the metal plate 3, and the line contact is changed into surface contact, as shown in fig. 10, force is transmitted along the width direction of the clamping lip edge 2 through the F position and the surface contact is kept, along with the downward pulling-out position, the upward extrusion force of the width is larger, and further, the friction force is larger, so that the good pulling-inserting characteristic is embodied. When a thicker sheet metal 3 is inserted, the upper end of the clamping rack is piled up and extruded, the deformation groove 5 provides deformation space to accommodate deformation, as shown in a G position of a figure 12, the insertion becomes relatively easy, as shown in a figure 11, just because of the arrangement of the deformation groove 5, the clamping lip edge 2 is integrally thicker compared with the traditional lip edge, and the problem that the clamping force when the sheet metal is thinner cannot be ensured by thickening the traditional clamping lip edge is solved to a certain extent; when the pulling-out is carried out, friction force is provided by the supporting structures at the two sides, the stress point is close to the fixed position, the yielding deformation is not easy to occur, the extrusion force is kept large, the required pulling-out force is large, and the stress condition is shown in figure 12; therefore, the plug-in connector has better plug-in and pull-out characteristics.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (4)
1. The three-section type single-tooth sealing strip is characterized by comprising a sealing strip body and a clamping lip edge, wherein the middle of the sealing strip body is provided with a groove for a metal plate to be inserted into, the clamping lip edge is arranged on the inner wall of the groove and used for limiting the metal plate to be pulled out, one side of the clamping lip edge is fixed on the side wall of the groove, and the other side of the clamping lip edge is obliquely arranged; the edge part of the free edge of one surface of the clamping lip edge facing the opening part of the groove is a plane, and the inclination angle is larger than the integral inclination angle of the clamping lip edge; planar set up the position make the panel beating when inserting not with the plane contact, the clamping lip limit is equipped with the deformation groove that holds clamping lip limit to recess bottom upset deflection along its length direction to one side of recess bottom.
2. A three-piece, single tooth seal according to claim 1 wherein said retaining lip has a plurality of friction ribs on the interior wall of the groove opposite the retaining lip, said friction ribs being disposed toward the bottom of the groove.
3. The three-section single tooth sealing strip of claim 1, wherein the thickness of the portion of the sizing material contacting the sheet metal at the bottom of the groove is greater than other portions.
4. A three-piece, single-tooth strip as claimed in claim 2 in which the strip body has a framework of "U" cross-section around the groove, the retaining lip and the friction rib being within the framework reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627049.4A CN109649293B (en) | 2018-12-28 | 2018-12-28 | Three-section type single-tooth sealing strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811627049.4A CN109649293B (en) | 2018-12-28 | 2018-12-28 | Three-section type single-tooth sealing strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109649293A CN109649293A (en) | 2019-04-19 |
| CN109649293B true CN109649293B (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811627049.4A Active CN109649293B (en) | 2018-12-28 | 2018-12-28 | Three-section type single-tooth sealing strip |
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| CN (1) | CN109649293B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3579835B2 (en) * | 2001-07-03 | 2004-10-20 | 西川ゴム工業株式会社 | Automotive weather strip and continuous extrusion equipment |
| JP5027730B2 (en) * | 2008-04-25 | 2012-09-19 | 西川ゴム工業株式会社 | Automotive door structure |
| CN203186049U (en) * | 2013-04-09 | 2013-09-11 | 武汉东海敏实汽车零部件有限公司 | Sealing strip of automobile door |
| CN204623092U (en) * | 2015-05-20 | 2015-09-09 | 建新赵氏集团有限公司 | A kind of sealing band with dentalation |
| CN205059161U (en) * | 2015-09-25 | 2016-03-02 | 比亚迪股份有限公司 | Waterproof sealing structure of sealing strip and automobile body side wall |
| CN206264770U (en) * | 2016-11-10 | 2017-06-20 | 北京汽车研究总院有限公司 | A kind of automobile door opening sealing strip, automobile door opening sealing strip assembly and automobile |
| CN206568864U (en) * | 2017-03-28 | 2017-10-20 | 长城汽车股份有限公司 | Sealing strip for door frame and vehicle body sealing structure and vehicle |
| CN207207717U (en) * | 2017-08-15 | 2018-04-10 | 北京汽车股份有限公司 | Sealing strip and the vehicle with the sealing strip |
| CN207579560U (en) * | 2017-11-29 | 2018-07-06 | 常州荣南橡胶科技有限公司 | A kind of automobile door and window sealing strip of good airproof performance |
| CN208118914U (en) * | 2018-01-04 | 2018-11-20 | 上汽通用汽车有限公司 | A kind of window gland strip and door sash |
| CN208134050U (en) * | 2018-05-10 | 2018-11-23 | 河北伟斯特汽配科技有限公司 | A kind of sealing strip for door |
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- 2018-12-28 CN CN201811627049.4A patent/CN109649293B/en active Active
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| CN109649293A (en) | 2019-04-19 |
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Address after: 401121 office 3, 3 / F, building 1, No.7, middle section of Huangshan Avenue, Renhe street, Yubei District, Chongqing Patentee after: SAARGUMMI (CHINA) INVESTMENT Co.,Ltd. Patentee after: SAARGUMMI YUJIN (CHONGQING) RUBBER & PLASTIC PRODUCT Co.,Ltd. Address before: 401121 a-17-1-a-17-9, Hanguo center, No. 85, Jinyu Avenue, new North District, Chongqing Patentee before: SAARGUMMI (CHINA) INVESTMENT Co.,Ltd. Patentee before: SAARGUMMI YUJIN (CHONGQING) RUBBER & PLASTIC PRODUCT Co.,Ltd. |
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