Novel front hatch cover sealing strip section structure
By adopting a new type of front hood sealing strip with TPV material and a specific structural design, the problems of compatibility and adhesion of electric vehicle sealing strips have been solved, achieving low-temperature sealing and recyclability, and reducing production costs.
Patent Information
- Application Number
- CN202520414605.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing hood sealing strips are not suitable for the low-temperature environment of electric vehicles, and their elastic clamping posts are prone to sticking together, resulting in poor sealing performance. At the same time, they are costly to produce and are not recyclable.
A tubular connecting section made of TPV material is combined with symmetrically arranged first and second snap-fit feet, fixed brackets, first and second elastic pillars, and symmetrical first and second elastic clamping pillars. The U-shaped fixed bracket is designed with notches on the pillars to avoid mutual contact, combined with a new sealing strip structure made of TPV material.
It achieves effective sealing in low-temperature environments, avoids adhesion of elastic supports, reduces production costs and improves sealing performance, and is also recyclable.
Smart Images

Figure CN223850557U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the front hatch seal strip field especially relates to a novel front hatch seal strip section structure. BACKGROUND
[0002] The prior art (application number CN202221899281.5, application date 2022.07.22) discloses a hatch for reducing the wind resistance of an automobile, the machine compartment sealing rubber strip disclosed in the specification and the specification attached figure 2 disclose the commonly used front hatch seal strip structure, because the fuel car in the process of driving, the temperature in the front compartment of the car will rise, resulting in that the front hatch seal strip needs to be made of temperature-resistant material, specifically, EPDM is used to form a metal skeleton by co-extrusion, this front hatch seal strip will have rubber vulcanization and pollute the environment in the production process, and it is not recyclable itself, and the production cost is also relatively high.
[0003] With the development of electric vehicles, the front compartment of the electric vehicle does not generate heat, and the front compartment of the electric vehicle will not have such a high temperature environment, the existing front hatch seal strip has been unable to meet the needs of electric vehicles, secondly, in order to ensure the sealing effect, at least two symmetrical elastic clamping columns will be arranged in the front hatch seal strip, and the ends of the two elastic clamping columns will be as close as possible to each other or even abut each other, which is easy to cause the two elastic clamping columns to adhere to each other. UTILITY MODEL CONTENTS
[0004] The purpose of the present application is to provide a novel front hatch seal strip section structure to solve the problems that the existing front hatch seal strip cannot be adapted to electric vehicles and the two elastic clamping columns of the front hatch seal strip are easy to adhere to each other, and the specific technical solutions are as follows:
[0005] A novel front hatch seal strip section structure, the seal strip comprises a tubular connecting section made of TPV, the side of the tubular connecting section protrudes outward to form symmetrically arranged first and second buckle feet, the first and second buckle feet cooperate with the tubular connecting section to form a groove, the inner wall of the groove is connected with a fixed support, the inner wall of the fixed support is connected with first and second elastic struts with opposite bending directions, and the first and second elastic struts partially overlap.
[0006] As one of the improvements of the above technical solutions, the fixed support is in the shape of U, the first and second elastic struts are respectively connected to the two opposite inner walls of the fixed support, the first elastic strut has a first connecting point with the fixed support, the second elastic strut has a second connecting point with the fixed support, and the first and second connecting points are at the same height.
[0007] As one of the improvements of the above technical solutions, the first elastic support is provided with a first notch on the side surface towards the inside of the groove, and the second elastic support is provided with a second notch on the side surface towards the inside of the groove.
[0008] As one of the improvements of the above technical solutions, the first elastic support is provided with a first notch on the side surface towards the inside of the groove, and the second elastic support is provided with a second notch on the side surface towards the inside of the groove.
[0009] As one of the improvements of the above technical solutions, the first elastic support is provided with a first notch on the side surface towards the inside of the groove, and the second elastic support is provided with a second notch on the side surface towards the inside of the groove.
[0010] As one of the improvements of the above technical solutions, the first elastic support is provided with a first notch on the side surface towards the inside of the groove, and the second elastic support is provided with a second notch on the side surface towards the inside of the groove.
[0011] The beneficial effects of the present application: the existing elastic clamping column is improved, the first elastic support and the second elastic support are partially overlapped and the bending directions are opposite, the first elastic support and the second elastic support are prevented from being in contact with each other and adhered to each other while the sealing effect is ensured, the sealing strip is mainly made of TPV material, and the production cost is low compared with the cabin sealing rubber strip, and the sealing strip can be recycled.
[0012] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application, of course, any product or method of the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor under the premise of not paying.
[0014] Figure 1 is a structural schematic diagram of the present application.
[0015] In the figure: 1, sealing strip; 2, first buckle support; 3, second buckle support; 4, first elastic support; 5, second elastic support; 6, fixed support; 7, first elastic clamping column; 8, second elastic clamping column; 41, first notch; 51, second notch. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0017] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. Those skilled in the art will appreciate that embodiments described herein can be combined with other embodiments in various ways.
[0018] Please refer to Figure 1 In the embodiments of the present application, a novel front hatch seal strip cross-section structure, the seal strip 1 comprises a tubular connecting section made of TPV. Specifically, the seal strip 1 of the present embodiment is made of a TPV bubble structure cooperated with a TPV sliding material co-extrusion molding. The side surface of the tubular connecting section protrudes outward to form symmetrically arranged first and second buckle feet 2 and 3. The first and second buckle feet 2 and 3 cooperate with the tubular connecting section to form a groove. The inner wall of the groove is connected with a fixing bracket 6. The inner wall of the fixing bracket 6 is connected with first and second elastic struts 4 and 5 with opposite bending directions. The first and second elastic struts 4 and 5 partially overlap. The first and second elastic struts 4 and 5 can clamp the vehicle body or front hatch bracket, thereby effectively preventing external factors such as water and dust from entering the vehicle and improving the sealing performance.
[0019] Specifically, the vehicle body or front hatch bracket will form a corresponding protruding structure. Please refer to the description of the prior art (application number CN202221899281.5) and the accompanying drawings. The protruding structure will be inserted between the first and second buckle feet 2 and 3, or the protruding structure will be inserted into the groove. During the process of inserting the protruding structure into the groove, the first and second elastic struts 4 and 5 will bend inwardly into the groove, and the first and second elastic struts 4 and 5 will press the protruding structure to achieve a sealing effect.
[0020] In some embodiments, the fixed support 6 is in a U-shaped form, the fixed support 6 is made of PP, the first elastic support 4 and the second elastic support 5 are respectively connected to the opposite two inner walls of the fixed support 6, the first elastic support 4 and the fixed support 6 have a first connecting point, the second elastic support 5 and the fixed support 6 have a second connecting point, the first connecting point and the second connecting point are at the same height, preferably, the first elastic support 4 is provided with a first notch 41 on the side surface facing the inside of the groove, the second elastic support 5 is provided with a second notch 51 on the side surface facing the inside of the groove, it should be noted that the material of the first elastic support 4 and the second elastic support 5 is also TPV, and the first notch 41 and the second notch 51 provided on the first elastic support 4 and the second elastic support 5 can provide a deformation space for the first elastic support 4 and the second elastic support 5, and the first notch 41 and the second notch 51 can also make the first elastic support 4 and the second elastic support 5 more easily bent.
[0021] In order to further improve the sealing effect, the utility model also provides some embodiments, specifically further including the first elastic clamping column 7 and the second elastic clamping column 8 arranged symmetrically, the first elastic clamping column 7 and the second elastic clamping column 8 are respectively connected to the opposite two inner walls of the fixed support 6, the gap between the end of the first elastic clamping column 7 and the end of the second elastic clamping column 8 is matched, preferably, the first elastic support 4 and the second elastic support 5 are arranged close to the notch of the groove, and the first elastic clamping column 7 and the second elastic clamping column 8 are arranged close to the bottom surface of the groove, and the first elastic clamping column 7 and the second elastic clamping column 8 are arranged obliquely to guide the vehicle body or the front cabin support to form a corresponding convex structure to enter, in the embodiment, the sealing strip 1 clamped on the convex structure will first directly contact the vehicle body or the front cabin support by the first buckle supporting leg 2 and the second buckle supporting leg 3 to serve as a first layer sealing structure, the convex structure is clamped by the first elastic support 4 and the first elastic support 4 to serve as a second layer sealing structure, and finally, the convex structure is clamped by the first elastic clamping column 7 and the second elastic clamping column 8 to serve as a third layer sealing structure.
[0022] It should be noted that the terms "first", "second" and the like in the present document are only used for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features.
[0023] The terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like as used herein to indicate an orientation or positional relationship are based on the orientation or positional relationship as shown in the drawings, and are used only to facilitate the description of the present application and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.
[0024] It is obvious to a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalency of the essential elements of the claims are intended to be embraced therein.
Claims
1. A novel cross-sectional structure of a front hood weatherstrip, characterized by, The sealing strip comprises a tubular connecting section made of TPV, the side of the tubular connecting section is outwardly convex to form symmetrically arranged first and second clamping legs, the first and second clamping legs cooperate with the tubular connecting section to form a groove, the inner wall of the groove is connected with a fixing support, the inner wall of the fixing support is connected with first and second elastic supports with opposite bending directions, and the first and second elastic supports partially overlap.
2. A novel cross-section of a front hood weatherstrip according to claim 1, characterized in that: The fixing support is in U-shaped form, the first and second elastic supports are respectively connected to the two opposite inner walls of the fixing support, the first elastic support has a first connecting point with the fixing support, the second elastic support has a second connecting point with the fixing support, and the first connecting point and the second connecting point are at the same height.
3. A novel cross-section of a front hood weatherstrip according to claim 1, characterized in that: The side of the first elastic support facing the inside of the groove is provided with a first notch, and the side of the second elastic support facing the inside of the groove is provided with a second notch.
4. A novel cross-section of a front hood weatherstrip according to claim 2, characterized in that: The first and second elastic supports are respectively connected to the two opposite inner walls of the fixing support, and the gap between the ends of the first and second elastic supports is in clearance fit.
5. A novel cross-section of a front hood weatherstrip according to claim 4, characterized in that: The first and second elastic supports are arranged obliquely.
6. A novel cross-section of a front hood weatherstrip according to claim 4, characterized in that: The first and second elastic supports are arranged close to the groove opening.
Citation Information
Patent Citations
Hatch cover capable of reducing wind resistance of automobile
CN218112783U