High-waiting-resistance train door waterproof injection molding cover plate

Abstract

The utility model relates to a high-waiting-resistance waterproof injection molding cover plate for a vehicle door, which comprises a cover plate body, a circle of sealing strip is arranged on the edge part of the inner side of the cover plate body, a plurality of buckles are arranged on the inner side of the cover plate body, and a circle of first waterproof flange and a circle of second waterproof flange are arranged on the edge part of the outer side of the cover plate body. The first waterproof flange and the second waterproof flange are located on the back side of the sealing strip, a plurality of metal plate mounting holes are formed in the cover plate body in a penetrating mode, and a plurality of hexagonal reinforcing ribs are arranged on the cover plate body. The two independent waterproof flanges form double waterproof barriers, so that water is effectively prevented from permeating into the automobile door; the diversion trenches guide rainwater and accumulated water to be discharged quickly by gravity, accumulated water retention is reduced, and waterproof efficiency is improved; due to the design of the hexagonal reinforcing ribs, the overall structural strength of the cover plate is enhanced, and the attractiveness of the product is improved; and due to the arrangement of the buckles, the automobile door sealing structure is firmer when being assembled with the automobile door sheet metal part, looseness caused by vibration or external force is effectively prevented, and the durability of waterproof sealing is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle door sealing and waterproofing, in particular to a highly weather-resistant vehicle door waterproof injection molding cover plate. Background Art

[0002] Currently, automotive door waterproofing panels face limitations in terms of weather resistance, impact resistance, and waterproofing. Extreme weather conditions, such as high temperatures, low temperatures, and humidity, can significantly degrade performance, leading to aging, cracking, and leaks. This is primarily due to the fact that traditional materials, such as PE, HDPE, XPE, and IXPE, often provide low structural strength. Furthermore, the panels' inherent structural design has flaws. Furthermore, their sealing performance needs to be improved.

[0003] Therefore, a highly weather-resistant and waterproof injection-molded cover plate for vehicle doors is needed to solve the above technical problems. Utility Model Content

[0004] The utility model aims to solve the technical problems existing in the prior art and provides a highly weather-resistant waterproof injection-molded cover plate for a vehicle door.

[0005] The technical solution of the utility model to solve the above-mentioned technical problems is as follows: a highly weather-resistant waterproof injection-molded cover plate for a vehicle door, comprising a cover plate body, a circle of sealing strips being installed on the inner edge of the cover plate body, a plurality of buckles being provided on the inner side of the cover plate body, a circle of first waterproof ribs and a circle of second waterproof ribs being provided on the outer edge of the cover plate body, the first waterproof ribs and the second waterproof ribs being located on the back side of the sealing strip, a plurality of sheet metal mounting holes being passed through the cover plate body, and a plurality of hexagonal reinforcing ribs being provided on the cover plate body.

[0006] Preferably, in the above-mentioned highly weather-resistant waterproof injection-molded cover plate for vehicle doors, the hexagonal reinforcement ribs are located on the outside of the cover plate body.

[0007] Preferably, in the above-mentioned highly weather-resistant vehicle door waterproof injection molded cover plate, a guide groove is formed between the first waterproof rib and the second waterproof rib, and a plurality of cross beams are arranged at intervals inside the guide groove.

[0008] Preferably, in the above-mentioned highly weather-resistant waterproof injection-molded cover plate for vehicle doors, a plurality of first ribs are provided on the inner side surface of the cover plate body, and the first ribs are perpendicular to the sealing strips adjacent thereto.

[0009] Preferably, in the above-mentioned highly weather-resistant waterproof injection-molded cover plate for vehicle doors, a second rib is vertically provided on the back side of the buckle.

[0010] Preferably, in the above-mentioned highly weather-resistant waterproof injection-molded cover for vehicle doors, the cover body is made of a composite material of polypropylene + EPDM rubber + 20% talc.

[0011] Preferably, the above-mentioned highly weather-resistant vehicle door waterproof injection-molded cover plate, wherein the sealing strip includes an integrally formed rib and a sealing portion, the sealing portion is diamond-shaped, and both sides of the sealing portion have wrinkles, and when the top of the sealing portion is squeezed, the two sides bend along the wrinkles, the bottom of the rib is arc-shaped, and an arc-shaped groove is provided on the cover plate body, and the bottom of the rib is embedded in the arc-shaped groove.

[0012] Preferably, in the above-mentioned highly weather-resistant waterproof injection-molded cover plate for vehicle doors, an internal support member is embedded in the interior of the ribs.

[0013] Preferably, in the above-mentioned highly weather-resistant waterproof injection-molded cover plate for vehicle doors, the top of the rib is in an arc shape.

[0014] Preferably, in the above-mentioned highly weather-resistant waterproof injection-molded cover plate for vehicle doors, a plurality of moldings are provided on the outer side of the sealing portion, the moldings are oriented toward the folded portions at both ends, and the moldings and the sealing portion are an integrally formed structure.

[0015] The beneficial effects of the present invention are: two independent waterproof ribs form a double waterproof barrier, effectively preventing moisture from penetrating into the interior of the vehicle door; the guide groove uses gravity to guide rainwater and accumulated water to drain quickly, reducing water retention and improving waterproof efficiency; the design of hexagonal reinforcement ribs not only enhances the overall structural strength of the cover, but also improves the aesthetics of the product; the setting of the buckle is more secure when assembled with the vehicle door sheet metal, effectively preventing loosening due to vibration or external force, and ensuring the durability of the waterproof seal; the unique design of the sealing strip can form an effective waterproof barrier to ensure a good waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the inner structure of the cover body of the utility model;

[0017] Figure 2 This is a schematic diagram of the outer structure of the cover body of the utility model;

[0018] Figure 3 For this utility model Figure 1 A partial enlarged view of the middle part;

[0019] Figure 4 Schematic diagram of the cross-sectional structure of the sealing strip.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Cover body, 2. Sheet metal mounting hole, 3. Buckle, 4. First rib, 5. Sealing strip, 51. Rib, 52. Internal support, 53. Sealing part, 54. Pressure strip, 6. Second rib, 7. Hexagonal reinforcement rib, 8. First waterproof rib, 9. Second waterproof rib, 10. Crossbeam. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] like Figures 1 to 3 The following figure shows a highly weather-resistant, injection-molded waterproof door cover. The cover includes a cover body 1, which is made from a composite material of polypropylene, EPDM, and 20% talc. The PP+EPDM+TD20 material is a modified plastic composed of polypropylene (PP), EPDM, and 20% talc (TD20). It offers excellent weather resistance, impact resistance, and low shrinkage, meeting the requirements for waterproof door covers in extreme climates. The base material is PP (polypropylene) for its excellent processing properties and mechanical strength. EPDM (ethylene propylene diene monomer) is added to enhance the material's weather resistance, aging resistance, and sealing properties. TD20 (the specific ingredients can be adjusted based on actual needs and may include toughening agents, antioxidants, and UV absorbers) to further enhance the material's overall performance. The cover body is injection molded to ensure dimensional stability and precise shape. During the injection molding process, by adjusting parameters such as injection temperature, pressure and speed, we ensure that the PP+EPDM+TD20 material is fully melted and evenly fills the mold, thereby improving the density and strength of the cover body.

[0024] The inner edge of the cover body 1 is fitted with a sealing strip 5. Made of an elastic material, it fits tightly against the door frame, forming an effective waterproof barrier. Multiple clips 3 are positioned on the inner side of the cover body 1. Secondary ribs 6 are positioned perpendicularly to the back of these clips to enhance their structural strength. These clips, including cantilevered and single-sided, provide a more secure fit to the door sheet metal, effectively preventing loosening due to vibration or external forces and ensuring a durable waterproof seal.

[0025] The outer edge of the cover body 1 is provided with a first waterproof rib 8 and a second waterproof rib 9. These two independent waterproof ribs form a double waterproof barrier, effectively preventing moisture from penetrating into the interior of the vehicle door. A diversion trough is formed between the first waterproof rib 8 and the second waterproof rib 9. The diversion trough uses gravity to guide rainwater and accumulated water to drain quickly, reducing water retention and improving waterproofing efficiency. Multiple crossbeams 10 are provided at intervals within the diversion trough to enhance its structural strength. In addition, the first waterproof rib 8 and the second waterproof rib 9 are located on the back side of the sealing strip 5 to facilitate support and support of the sealing strip 5.

[0026] The cover body 1 is penetrated by multiple sheet metal mounting holes 2 for securing it to the door sheet metal. Several hexagonal reinforcing ribs 7 are installed on the cover body 1, enhancing its overall structural strength and aesthetics, achieving a perfect combination of function and aesthetics. These ribs 7 are located on the outside of the cover body 1. Multiple first ribs 4 are installed on the inside of the cover body 1, perpendicular to the adjacent sealing strips 5 to enhance structural strength.

[0027] like Figure 4 As shown, in order to improve its sealing performance, the sealing strip 5 in the present invention can be designed as follows: the sealing strip 5 includes an integrally formed rib 51 and a sealing portion 53. The sealing portion 53 is in a diamond shape, and there are wrinkles on both sides of the sealing portion 53. When the top of the sealing portion 53 is squeezed, the two sides are bent along the wrinkles, and after squeezing, they are flat. The bottom of the rib 51 is in an arc shape, and the top of the rib 51 is also in an arc shape. After squeezing, the inner side of the top of the sealing portion 53 is against the top of the rib 51, and the arc-shaped top can play a better sealing role. In this structure, the sealing pressure decreases linearly from the top of the sealing portion 53 to both sides during sealing, which increases the sealing width while also ensuring the sealing effect on both sides. A hard internal support member 52 is embedded in the interior of the rib 51, and an arc-shaped groove is provided on the cover body 1. The bottom of the rib 51 is embedded in the arc-shaped groove. Furthermore, a plurality of moldings 54 are provided on the outside of the sealing portion 53. The moldings 54 face the folded parts at both ends. The moldings 54 and the sealing portion 53 are an integrally formed structure. The moldings can improve the sealing strength on both sides of the middle part of the sealing portion 53 during sealing. The sealing strength is nonlinear from the middle part of the sealing portion 53 to both sides. The sealing strength at the moldings 54 will be higher, and the sealing is multiple-guaranteed and the sealing effect is better.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation. Therefore, it cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A highly weather-resistant waterproof injection molded cover for a vehicle door, characterized by: The invention comprises a cover body (1), wherein a circle of sealing strips (5) are installed on the inner side edge of the cover body (1), a plurality of buckles (3) are provided on the inner side of the cover body (1), a circle of first waterproof retaining edges (8) and a circle of second waterproof retaining edges (9) are provided on the outer side edge of the cover body (1), the first waterproof retaining edges (8) and the second waterproof retaining edges (9) are located at the back side of the sealing strip (5), a plurality of sheet metal mounting holes (2) are passed through the cover body (1), and a plurality of hexagonal reinforcing ribs (7) are provided on the cover body (1).

2. The highly weather-resistant waterproof injection molded cover plate for vehicle doors according to claim 1, characterized in that: The hexagonal reinforcement ribs (7) are located outside the cover plate body (1).

3. The highly weather-resistant waterproof injection molded cover plate for vehicle doors according to claim 1, characterized in that: A guide groove is formed between the first waterproof retaining edge (8) and the second waterproof retaining edge (9), and a plurality of cross beams (10) are arranged at intervals inside the guide groove.

4. The highly weather-resistant waterproof injection molded cover plate for vehicle doors according to claim 1, characterized in that: A plurality of first ribs (4) are provided on the inner side surface of the cover plate body (1), and the first ribs (4) are perpendicular to the sealing strips (5) adjacent thereto.

5. The highly weather-resistant waterproof injection molded cover plate for vehicle doors according to claim 1, characterized in that: A second rib (6) is vertically arranged on the back side of the buckle (3).

6. The highly weather-resistant waterproof injection molded cover plate for vehicle doors according to claim 1, characterized in that: The cover plate body (1) is made of a composite material of polypropylene + EPDM rubber + 20% talc powder.

7. The highly weather-resistant waterproof injection molded cover plate for vehicle doors according to claim 1, characterized in that: The sealing strip (5) comprises an integrally formed rib (51) and a sealing portion (53). The sealing portion (53) is in a diamond shape, and both sides of the sealing portion (53) are wrinkled. When the top of the sealing portion (53) is squeezed, the two sides bend along the wrinkled portion. The bottom of the rib (51) is in an arc shape. An arc-shaped groove is provided on the cover plate body (1), and the bottom of the rib (51) is embedded in the arc-shaped groove.

8. The highly weather-resistant waterproof injection molded cover plate for vehicle doors according to claim 7, characterized in that: An internal support member (52) is embedded in the rib (51).

9. The highly weather-resistant waterproof injection molded cover plate for vehicle doors according to claim 8, characterized in that: The top of the rib (51) is in an arc shape.

10. The highly weather-resistant waterproof injection molded cover plate for vehicle doors according to claim 7, characterized in that: A plurality of pressure strips (54) are provided on the outside of the sealing portion (53), the pressure strips (54) facing the folded portions at both ends, and the pressure strips (54) and the sealing portion (53) are an integrally formed structure.

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