Sealing strip
By setting through holes and gaps on the skeleton of the sealing strip and injecting glue to enhance the connection strength, the existing sealing strips are solved by easily falling off the glue in high-temperature environment and consuming human resources during the production process, achieving environmental protection, cost reduction and matching improvement effects.
Patent Information
- Application Number
- CN202422021357.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-20
AI Technical Summary
During the production and use of existing seal strips, there are problems such as inconsistent environmental protection requirements, poor processability, high matching requirements, and difficult cost control. Especially in high-temperature environments, the glue is prone to falling off and needs to bending, which consumes manpower and resources.
A sealing strip is designed, and its skeleton is set as a U-shaped structure. The bottom wall is equipped with a plurality of through holes arranged at intervals in the length direction. The left and right walls are provided with a plurality of left gaps and right gaps arranged at intervals in the length direction. The through holes, left gaps and right gaps all penetrate the inner and outer sides of the skeleton. The glue is wrapped around the peripheral part of the skeleton and injected into the through holes, left gaps and right gaps.
Through the through holes, left gaps and right gaps of the rubber, the connection strength between the rubber and the skeleton is enhanced, the rubber is prevented from falling off, carbon emissions are reduced, environmental protection requirements are met, material costs are reduced, and the flexibility of the sealing strip is improved through the gaps of the skeleton, adapting to the deformation of the car body sheet metal arc, reducing the need for bending treatment, and reducing production costs.
Smart Images
Figure CN222875919U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing, in particular to a sealing strip. Background Art
[0002] Sealing strips are widely used in sound insulation, dust prevention and waterproofing of various products. For example, the outer water cut, inner water cut, glass guide groove, first and second door sealing strips, tailgate sealing strips, door dividing strips and other parts in automobiles. Sealing strips generally include rubber and frame. The frame plays a role in strengthening the structural strength, and the rubber plays a role in elastic sealing. During the production process of sealing strips, glue, coating, composite agent and other adhesive layers are first coated on the surface of the frame, and then bonded with the rubber in a high temperature environment to ensure that the rubber does not fall off.
[0003] However, the current sealing strips have some shortcomings. For example, they do not meet environmental protection requirements, process requirements, matching requirements, and cost control requirements. The adhesive of the sealing strips has an adverse effect on the increasingly required carbon emissions. During the production process, the sealing strips need to be stretched and bent, which consumes manpower and resources. During the assembly and use of the sealing strips, the body sheet metal has different curvature requirements depending on the shape. In order to meet the matching requirements, the stretching and bending requirements are further improved, and the material requirements and process requirements further increase the cost.
[0004] Therefore, a sealing strip is urgently needed to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a sealing strip, wherein a through hole, a left gap and a right gap are arranged on a frame, so that adhesive can be injected into the through hole, the left gap and the right gap to ensure the connection strength between the adhesive and the frame.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] Sealing strip, including:
[0008] The frame is set as a U-shaped structure, the bottom wall of the frame is provided with a plurality of through holes arranged at intervals along the length direction of the frame, the left side wall of the frame is provided with a plurality of left slits arranged at intervals along the length direction of the frame, and the right side wall of the frame is provided with a plurality of right slits arranged at intervals along the length direction of the frame, and the through holes, the left slits and the right slits all penetrate the inner side and the outer side of the frame;
[0009] The adhesive material is coated on the periphery of the frame, and the through hole, the left gap and the right gap are all filled with the adhesive material.
[0010] As an optional technical solution, a plurality of left slits are arranged in parallel and at equal intervals; and / or
[0011] The plurality of right side walls are arranged in parallel and at equal intervals.
[0012] As an optional technical solution, the extension direction of the left slit is perpendicular to the length direction of the skeleton; and / or
[0013] The extension direction of the right slit is perpendicular to the length direction of the frame.
[0014] As an optional technical solution, the plurality of left slits correspond one-to-one to the plurality of right slits, and the corresponding left slits and right slits are located in the cross section of the skeleton.
[0015] As an optional technical solution, the left slit and the through hole are not on the cross section of the skeleton, and the right slit and the through hole are not on the cross section of the skeleton.
[0016] As an optional technical solution, the width of the left gap is 0.3 mm to 3 mm; and / or the width of the right gap is 0.3 mm to 3 mm.
[0017] As an optional technical solution, the left slit extends to an edge of the left side wall away from the bottom wall; and / or
[0018] The right slit extends to an edge of the right side wall away from the bottom wall.
[0019] As an optional technical solution, the extension length of each of the left slits is a first preset value, and the extension length of each of the right slits is a second preset value.
[0020] As an optional technical solution, the U-shaped length of the skeleton is a third preset value, the sum of the first preset value and the second preset value is a fourth preset value, and the ratio of the fourth preset value to the third preset value ranges from one-fifth to two-thirds.
[0021] As an optional technical solution, the sealing strip is any one of an automobile outer water cut, an automobile inner water cut, an automobile cover strip, a glass run channel, a door first line, a second line sealing strip, a tailgate sealing strip and a door dividing strip.
[0022] Beneficial effects of the utility model:
[0023] The utility model provides a sealing strip, which includes a frame and a rubber material. The frame is set as a U-shaped structure. The bottom wall of the frame is provided with a plurality of through holes spaced apart along the length direction of the frame. The left side wall of the frame is provided with a plurality of left slits spaced apart along the length direction of the frame. The right side wall of the frame is provided with a plurality of right slits spaced apart along the length direction of the frame. The through holes, the left slits and the right slits all penetrate the inside and outside of the frame. The rubber material is coated on the periphery of the frame, and the through holes, the left slits and the right slits are all filled with the rubber material. When producing the sealing strip, the rubber material can be injected into the through holes, the left slits and the right slits, thereby ensuring the connection strength between the rubber material and the frame, preventing the rubber material from falling off, eliminating the adhesive, lowering the carbon emission, meeting the environmental protection requirements, and lowering the material cost. The left side wall and the right side wall of the frame are both provided with slits, so that the sealing strip has a certain flexibility, deforms with the curvature of the body sheet metal during the assembly process, improves the matching, does not require additional stretching and bending treatment, and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a cross-sectional view of the outer water section of the automobile of the utility model;
[0025] Figure 2 It is a cross-sectional view of the automobile cover strip of the utility model;
[0026] Figure 3 It is a cross-sectional view of the second sealing strip of the utility model;
[0027] Figure 4 is a cross-sectional view of a tailgate sealing strip of the utility model;
[0028] Figure 5 It is a metal material with a sheet structure of the utility model.
[0029] In the figure:
[0030] 1. frame; 11. bottom wall; 12. left side wall; 121. left gap; 13. right side wall; 131. right gap;
[0031] 2. Rubber. DETAILED DESCRIPTION
[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0035] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0036] like Figures 1 to 4 As shown, the sealing strip provided in this embodiment includes a frame 1 and a rubber material 2. The frame 1 is set to a U-shaped structure. The bottom wall 11 of the frame 1 is provided with a plurality of through holes arranged at intervals along the length direction of the frame 1. The left side wall 12 of the frame 1 is provided with a plurality of left slits 121 arranged at intervals along the length direction of the frame 1. The right side wall 13 of the frame 1 is provided with a plurality of right slits 131 arranged at intervals along the length direction of the frame 1. The through holes, the left slits 121 and the right slits 131 all pass through the inner and outer sides of the frame 1; the rubber material 2 is coated on the periphery of the frame 1, and the through holes, the left slits 121 and the right slits 131 are all filled with the rubber material 2.
[0037] Specifically, when producing the sealing strip, the rubber 2 can be injected into the through hole, the left gap 121 and the right gap 131, thereby ensuring the connection strength between the rubber 2 and the frame 1, preventing the rubber 2 from falling off, eliminating adhesives, lowering carbon emissions, meeting environmental protection requirements, and lowering material costs. The left side wall 12 and the right side wall 13 of the frame 1 are both provided with gaps, so that the sealing strip has a certain flexibility, and deforms with the curvature of the body sheet metal during the assembly process, thereby improving matching, and no additional bending treatment is required, thereby reducing production costs.
[0038] Optionally, the skeleton 1 is made of metal material, such as carbon steel, stainless steel, aluminum alloy, etc.
[0039] like Figure 5 As shown, the skeleton 1 is a sheet structure before forming. The two side edges of the sheet structure are processed by rolling, cutting or stamping to obtain gaps, and the middle area of the sheet structure is processed to obtain through holes. The through holes are arranged in a plurality of rows along the second direction, such as 1 row, 2 rows, or 3 rows. The specific number can be set according to actual needs. The two side edges of the sheet structure are stretched along the second direction to increase the width of the gap. The width of the gap is in the first direction, and the first direction is perpendicular to the second direction. The skeleton 1 is then bent to form a U-shaped structure. The length direction of the skeleton 1 is in the first direction. In a high temperature environment, the rubber material 2 is coated on the periphery of the skeleton 1, and the rubber material 2 is injected into the through holes, the left gap 121, and the right gap 131 to obtain a sealing strip.
[0040] In this embodiment, the material of the rubber compound 2 is specifically TPV or EPDM elastic material.
[0041] Optionally, a plurality of left slits 121 are arranged in parallel and at equal intervals; and / or a plurality of right side walls 13 are arranged in parallel and at equal intervals.
[0042] In this embodiment, the number of left gaps 121 on the left side wall 12 and the number of right gaps 131 on the right side wall 13 are set according to the length of the sealing strip. The longer the length of the sealing strip, the greater the number of left gaps 121 and the number of right gaps 131. The distance between two adjacent left gaps 121 and the distance between two adjacent right gaps 131 are also set according to actual needs.
[0043] In this embodiment, a plurality of left slits 121 are arranged in parallel and at equal intervals, and a plurality of right side walls 13 are arranged in parallel and at equal intervals, so as to ensure that the performance of each part of the skeleton 1 in the length direction remains consistent.
[0044] In some other embodiments, two adjacent gaps are arranged at an angle.
[0045] Optionally, the extension direction of the left slit 121 is perpendicular to the length direction of the skeleton 1 ; and / or the extension direction of the right slit 131 is perpendicular to the length direction of the skeleton 1 .
[0046] The metal material of the sheet structure is processed from the side to the middle area along the second direction to obtain the gap, which reduces the process requirements and has high precision.
[0047] In some other embodiments, the metal material of the sheet structure is processed from the side toward the middle area along a third direction to obtain a gap, and the third direction is set at an angle to the second direction.
[0048] In some other embodiments, the left slit 121 does not extend to the side edge of the left side wall 12 , and the right side wall 13 does not extend to the side edge of the right side wall 13 .
[0049] Optionally, the plurality of left slits 121 correspond one-to-one to the plurality of right slits 131 , and the corresponding left slits 121 and right slits 131 are located in the cross section of the skeleton 1 .
[0050] In this embodiment, the plurality of left slits 121 correspond to the plurality of right slits 131 one by one, and the corresponding left slits 121 and right slits 131 are located in the cross section of the skeleton 1 , thereby improving the flexibility of the skeleton 1 .
[0051] In some other embodiments, the plurality of left slits 121 and the plurality of right slits 131 are staggered.
[0052] Optionally, the left slit 121 and the through hole are not on the cross section of the skeleton 1 , and the right slit 131 and the through hole are not on the cross section of the skeleton 1 .
[0053] After processing the sheet-like metal material to obtain gaps and through holes, the gaps on both sides are aligned in the second direction to improve the toughness of the metal material, and the through holes and gaps are misaligned in the second direction to prevent the metal material from being easily broken along the extension direction of the gaps.
[0054] Optionally, the width of the left slit 121 is 0.3 mm to 3 mm; and / or, the width of the right slit 131 is 0.3 mm to 3 mm. The width of the left slit 121 can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, and the width of the right slit 131 can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm.
[0055] Optionally, the left slit 121 extends to an edge of the left side wall 12 away from the bottom wall 11 ; and / or the right slit 131 extends to an edge of the right side wall 13 away from the bottom wall 11 .
[0056] Optionally, the extension length of each left slit 121 is a first preset value, and the extension length of each right slit 131 is a second preset value.
[0057] In this embodiment, the extension length of each left slit 121 is equal, and the extension length of each right slit 131 is equal, so as to ensure that the performance of each part of the skeleton 1 in the length direction remains consistent.
[0058] Optionally, the U-shaped length of the skeleton 1 is a third preset value, the sum of the first preset value and the second preset value is a fourth preset value, and the ratio of the fourth preset value to the third preset value ranges from one fifth to two thirds.
[0059] When processing metal materials with sheet structures, the total length of two gaps located on the same straight line is one-fifth to two-thirds of the total length of the metal material along the second direction, which ensures a certain structural strength while also having a certain flexibility.
[0060] Optionally, the sealing strip is any one of an automobile outer water cut, an automobile inner water cut, an automobile cover strip, a glass run channel, a first-line sealing strip for a car door, a second-line sealing strip for a car door, a tailgate sealing strip, and a car door dividing strip.
[0061] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. A sealing strip, characterized in that: include: The frame (1) is set as a U-shaped structure, the bottom wall (11) of the frame (1) is provided with a plurality of through holes arranged at intervals along the length direction of the frame (1), the left side wall (12) of the frame (1) is provided with a plurality of left slits (121) arranged at intervals along the length direction of the frame (1), and the right side wall (13) of the frame (1) is provided with a plurality of right slits (131) arranged at intervals along the length direction of the frame (1), and the through holes, the left slits (121) and the right slits (131) all penetrate the inner side and the outer side of the frame (1); The adhesive (2) is coated on the periphery of the frame (1), and the through hole, the left slit (121) and the right slit (131) are all filled with the adhesive (2).
2. The sealing strip according to claim 1, characterized in that: The plurality of left slits (121) are arranged in parallel and at equal intervals; and / or The plurality of right side walls (13) are arranged in parallel and at equal distances.
3. The sealing strip according to claim 2, characterized in that: The extension direction of the left slit (121) is perpendicular to the length direction of the frame (1); and / or The extension direction of the right slit (131) is perpendicular to the length direction of the frame (1).
4. The sealing strip according to claim 3, characterized in that: The plurality of left slits (121) correspond one-to-one to the plurality of right slits (131), and the corresponding left slits (121) and right slits (131) are located in the cross section of the skeleton (1).
5. The sealing strip according to claim 3, characterized in that: The left slit (121) and the through hole are not on the cross section of the frame (1), and the right slit (131) and the through hole are not on the cross section of the frame (1).
6. The sealing strip according to any one of claims 1 to 5, characterized in that: The width of the left slit (121) is 0.3 mm to 3 mm; and / or the width of the right slit (131) is 0.3 mm to 3 mm.
7. The sealing strip according to any one of claims 1 to 5, characterized in that: The left slit (121) extends to an edge of the left side wall (12) away from the bottom wall (11); and / or The right slit (131) extends to an edge of the right side wall (13) away from the bottom wall (11).
8. The sealing strip according to claim 7, characterized in that: The extension length of each of the left slits (121) is a first preset value, and the extension length of each of the right slits (131) is a second preset value.
9. The sealing strip according to claim 8, characterized in that: The U-shaped length of the skeleton (1) is a third preset value, the sum of the first preset value and the second preset value is a fourth preset value, and the ratio of the fourth preset value to the third preset value ranges from one fifth to two thirds.
10. The sealing strip according to any one of claims 1 to 5, characterized in that: The sealing strip is any one of an automobile outer water cut, an automobile inner water cut, an automobile cover strip, a glass run channel, a first-line sealing strip, a second-line sealing strip, a tailgate sealing strip, and a door dividing strip.