A trunk with enhanced sealing

Abstract

This utility model discloses a reinforced sealing car trunk, including a trunk body, a top cover, a sealing groove ring, and an expansion seal. The trunk body and top cover are joined by a connecting edge and a cover edge, respectively. The sealing groove ring is fixed to the inner side of the trunk body, forming a groove and a sliding wedge surface, and is equipped with several elastic elements. Its bottom end is fixedly connected to the top surface of the expansion seal. The expansion seal includes a guide wedge and an arc-shaped cover strip. The guide wedge slides along the sliding wedge surface, and the arc-shaped cover strip, when the top cover is closed, adheres to the connecting edge surface and elastically deforms within the groove, forming a multi-segment seal. It automatically resets under the rebound of the elastic elements. This structure, through multi-point guided sealing, elastic energy storage, and reset functions, effectively improves the sealing reliability and durability of the car trunk under weathering and long-term use conditions, and is suitable for optimizing the sealing structure of the trunk compartment in various car models.

Description

Technical Field

[0001] This utility model relates to the field of automotive trunk technology, specifically to a sealed and reinforced automotive trunk. Background Technology

[0002] Currently, as the main storage structure of a vehicle, the sealing performance of the trunk directly affects the vehicle's waterproof, dustproof, and noise-reducing capabilities in rainy, snowy, or complex road conditions. Existing car trunks generally achieve a seal between the top cover and the trunk body using rubber sealing strips or a single compression structure. Typical structures are as follows: Common luggage sealing relies on a single-layer rubber sealing strip fixed to the top cover or edge of the luggage body. The seal is formed by pressing the sealing strip against the edge of the cover. While this structure is simple, the sealing strip is prone to permanent deformation after prolonged use, leading to a decrease in sealing effectiveness.

[0003] Some vehicle models feature shallow grooves or embedded sealing grooves along the edge of the trunk lid to increase the sealing contact area when the lid is closed. However, these seals are generally single-piece rubber strips lacking guiding and self-resetting designs. When the vehicle travels on bumpy roads or is subjected to prolonged pressure, the sealing strips are prone to wear or displacement, affecting their service life. Furthermore, the lack of multi-angle fitting design at the joint between the sealing strip and the trunk body makes the sealing performance susceptible to failure under high-pressure water washing or high-speed driving.

[0004] In summary, existing car trunks still have shortcomings in terms of sealing enhancement, dust and water resistance, and durability. There is an urgent need for a trunk sealing enhancement solution with a reasonable structure, multi-point guided sealing, and automatic reset functions to significantly improve sealing performance and service life. Utility Model Content

[0005] This invention aims to address the shortcomings of existing car trunks in terms of sealing performance and long-term reliability. Traditional car trunks typically rely solely on a single-point seal between the top cover and the edge of the trunk body. When the vehicle is traveling at high speed, encounters wind and rain, or the seal ages due to prolonged use, problems such as poor sealing, water accumulation, or dust seepage can easily occur, severely affecting the user experience and durability of the trunk.

[0006] Therefore, this utility model proposes a sealed and enhanced car trunk. Through an innovative synergistic structure of sealing ring and expansion seal strip, it achieves multi-point guidance, elastic deformation sealing, and automatic reset functions when the top cover closes, thereby significantly improving the sealing reliability and service life of the trunk. The overall solution adopts the following technical design: This utility model discloses a sealed and reinforced car trunk, comprising a trunk body, a top cover, a sealing groove ring, and an expansion seal. The trunk body and the top cover have corresponding connecting edges and cover edges at their joint. The sealing groove ring is fixed to the inner side of the trunk body and forms a groove and a sliding wedge surface on its inner side for cooperation with the expansion seal to achieve an elastic seal. The expansion seal includes a guide wedge and an arc-shaped cover strip. The guide wedge slides along the sliding wedge surface during the closing of the top cover, allowing the expansion seal to enter the groove and form a multi-segment seal. Under the action of the elastic element, it automatically resets, ensuring long-term sealing performance.

[0007] This utility model discloses a sealed and reinforced car trunk, comprising a trunk body, a top cover, and a sealing groove ring fixed to the inside of the trunk body. The trunk body and top cover have a joint edge and a cover edge at their joint, forming a preliminary sealing contact surface. Several elastic elements are provided on the inner side of the sealing groove ring, with their bottom ends fixedly connected to the top surface of an expansion seal. A sliding wedge surface is provided on one side of the inner wall of the sealing groove ring, which cooperates with the groove cavity, allowing the expansion seal to be guided into the groove when the top cover is closed, achieving multi-stage sealing.

[0008] Specifically, this structure achieves multi-point sealing through deformation guidance during the top cover closing process, significantly improving the sealing performance and reliability of the suitcase under wind and rain impacts and long-term use.

[0009] In a preferred embodiment, the inner cavity shape of the cover edge is adapted to the shape of the arc-shaped cover strip and the surface shape of the connecting edge; when the top cover is closed, the sealing ring can cover the top surface of the connecting edge to achieve a reliable connection between the luggage compartment body and the top cover.

[0010] Specifically, the design ensures the overall fit of the sealing structure, allowing the expansion seal to fully compress the joint edge when closed, thereby forming a stable and continuous sealing interface that effectively prevents moisture or dust from seeping in.

[0011] In another preferred embodiment, the guide wedge and the arc cover strip are further configured as follows: the guide wedge and the arc cover strip are integrally molded, preferably made of thermoplastic elastomer (TPE) or ethylene propylene diene monomer (EPDM) rubber, so as to take into account good deformation elasticity, aging resistance and weather resistance.

[0012] Specifically, the integrated elastic component not only simplifies the assembly structure, but also maintains its elasticity and sealing performance under high and low temperatures, long-term vibration and environmental corrosion, significantly improving the service life and durability of the suitcase.

[0013] In a preferred example, the configuration is further as follows: several parallel deformation gaps are opened on the bottom surface of the guide wedge, and the arc cover strip is arched; when the top cover is closed and in contact with the edge, the expansion seal strip retracts along the sliding wedge surface to the inside of the groove cavity to complete elastic deformation.

[0014] Specifically, the deformation gap releases local stress, and the arched structure of the cover strip increases the energy storage space, achieving flexible buffering and sealing simultaneously, thus ensuring the long-term reliability of the seal and its reset performance after multiple openings.

[0015] In another preferred example, the top surface of the guide wedge is inclined, forming a sliding contact with the sliding wedge surface, and the sliding wedge surface gradually approaches the cover edge sidewall from bottom to top.

[0016] Specifically, through the cooperation of the guide ramp and the sliding wedge, the expansion seal can be smoothly slid into the groove when the top cover is closed, forming a progressive pressing and sealing effect, avoiding wear or jamming problems caused by direct hard extrusion.

[0017] In another preferred example, the elastic element is arranged inside the cavity to push the arc cover strip back to its original position after the top cover is opened.

[0018] Specifically, the elastic element's rebound action allows the expansion seal to quickly return to its initial position, ensuring long-term stable operation of the sealing structure and facilitating multiple opening and closing operations of the top cover.

[0019] In summary, this utility model, through the multi-level collaborative design of the trunk body, top cover, sealing groove ring, and expansion seal strip, achieves multi-point guided sealing, elastic energy storage, and automatic reset functions, significantly enhancing the sealing performance and durability of the car trunk. It can be widely applied to the trunk structure of various car models.

[0020] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, by setting a sealing groove ring and an expansion sealing strip at the joint between the suitcase body and the top cover, and designing an elastic element, a sliding wedge surface and a groove cavity inside the sealing groove ring, a multi-point sealing structure is achieved, in which the expansion sealing strip is guided downward along the sliding wedge surface when the top cover is closed, and the sealing pad layer is tightly fitted with the joint edge, which significantly improves the waterproof, dustproof and shockproof performance of the suitcase.

[0021] 2. In this utility model, the elastic element can push the arc cover strip back into the groove after the top cover is opened, so as to realize the automatic reset of the expansion seal strip and avoid the seal from fatigue deformation due to long-term pressure. With the design of guide wedge and deformation gap, the durability and reliability of the sealing component can be improved, the service life of the whole vehicle can be extended and the maintenance cost can be reduced. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a cross-sectional structural diagram of one embodiment of the present invention; Figure 3 This is one embodiment of the present utility model. Figure 2 A schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the cross-sectional structure of the sealing groove ring and the expansion seal strip according to an embodiment of the present invention.

[0023] Figure label: 100. Suitcase body; 110. Top cover; 101. Seam edge; 111. Cover edge; 200, Sealing ring; 210, Elastic element; 201, Sliding wedge surface; 202, Groove cavity; 300, Expansion seal; 310, Guide wedge; 320, Arc cover strip; 311, Deformation gap; 321, Sealing gasket. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0025] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0026] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a sealed and enhanced car trunk.

[0027] Combination Figures 1-4 As shown, the present invention provides a sealed and reinforced car trunk, including a trunk body 100, a top cover 110, and a sealing groove ring 200 fixed to the inside of the trunk body 100.

[0028] The junction of the luggage compartment body 100 and the top cover 110 is provided with oppositely arranged connecting edges 101 and cover edges 111, which are used to form a preliminary sealing contact surface when the top cover 110 is closed. The sealing groove ring 200 is fixed to the inside of the luggage compartment body 100, and a plurality of elastic elements 210 are provided on the inside of the sealing groove ring 200. The bottom end of each elastic element 210 is fixedly connected to the top surface of the expansion seal strip 300, which is used to provide support and rebound force when the expansion seal strip 300 deforms and returns to its original position.

[0029] The inner side of the sealing ring 200 is further provided with a cavity 202. One inner wall of the cavity 202 is provided with a sliding wedge surface 201. The sliding wedge surface 201 gradually approaches the side wall of the cover edge 111 from bottom to top. It is used to guide the expansion seal strip 300 to deform and slide into the cavity 202 during the process of the top cover 110 being pressed down and closed, thereby realizing multi-point sealing and deformation energy storage.

[0030] The expansion seal 300 includes a guide wedge 310 and an arc-shaped cover strip 320. The top surface of the guide wedge 310 slides against the sliding wedge surface 201 of the inner wall of the sealing groove ring 200, guiding the expansion seal 300 downwards along the sliding wedge surface 201 during the closing of the top cover 110. One side of the arc-shaped cover strip 320 is connected to the guide wedge 310, and the other end slides against the inner wall of the sliding wedge surface 201. A sealing gasket 321 is provided on the bottom surface, which abuts against the surface of the joint 101 to form a reliable seal. Through this structure, the top cover 110 can achieve multi-angle guided fit during the closing process and rebound to its original position under the action of the elastic element 210, improving sealing performance and durability.

[0031] In a preferred embodiment of the present invention, the inner cavity shape of the cover edge 111 and the outer shape of the arc cover strip 320 are adapted to the surface shape of the connecting edge 101, so that when the top cover 110 is joined with the luggage body 100, the sealing groove ring 200 can cover the top surface of the connecting edge 101, ensuring that the sealing expansion strip 300 and the connecting edge 101 are fully fitted, and a reliable seal is achieved.

[0032] In one optional embodiment of this utility model, the guide wedge 310 and the arc cover strip 320 can be integrally molded, preferably using thermoplastic elastomer (TPE) or ethylene propylene diene monomer (EPDM) rubber components to ensure sufficient deformation elasticity, aging resistance and environmental resistance.

[0033] Furthermore, the bottom surface of the guide wedge 310 is provided with several parallel deformation gaps 311, which are used to release local stress and increase elastic recovery space during the deformation of the expansion seal strip 300; the arc cover strip 320 has an arched structure, and when the top cover 110 is closed and engaged with the top surface of the connecting edge 101, the expansion seal strip 300 can retract into the inner side of the groove cavity 202 to complete elastic deformation, thereby realizing multi-stage sealing and energy storage reset functions.

[0034] In this embodiment, the top surface of the guide wedge 310 has an inclined structure for sliding contact with the sliding wedge surface 201, thereby enabling the expansion seal strip 300 to slide into the groove cavity 202 along the inclined surface during the closing process of the top cover 110. The sliding wedge surface 201 gradually approaches the side wall of the cover edge 111 from bottom to top, which is conducive to forming a smooth sealing guide path.

[0035] In this embodiment, the elastic element 210 is preferably arranged inside the cavity 202 to push the arc cover strip 320 upward to reset when the top cover 110 is opened, thereby restoring the expansion seal strip 300 to its original position, thus realizing the automatic reset function and maintaining the long-term stability and reliability of the sealing structure.

[0036] Through the above structural design, this utility model realizes the functions of multi-point guidance, multi-level elastic sealing and automatic reset when the top cover of the suitcase is closed, which not only significantly improves the sealing effect, but also enhances the durability of the structure and its resistance to environmental interference.

[0037] Working principle and usage process of this utility model: When the top cover 110 is closed to the luggage compartment 100, the cover edge 111 gradually presses against the connecting edge 101. At this time, the expansion seal 300 deforms under the guidance of the sliding wedge surface 201: the guide wedge 310 slides inward along the sliding wedge surface 201, causing the arc cover strip 320 to press down against the connecting edge 101. The sealing pad layer 321 at its bottom is in close contact with the connecting edge 101, forming a multi-point sealing surface, which significantly improves the sealing performance of the luggage compartment. The elastic element 210 stores elastic potential energy after being compressed, which is used to push the expansion seal 300 to automatically reset when the luggage compartment is opened. When the top cover 110 is opened, the cover edge 111 separates from the connecting edge 101, the elastic element 210 releases its stored energy, and pushes the arc cover strip 320 back into the groove cavity 202, realizing the reset of the expansion seal 300, thereby avoiding fatigue deformation caused by long-term pressure on the sealing strip.

[0038] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A reinforced, sealed car trunk, characterized in that, include: The luggage includes a suitcase body (100), a top cover (110), and a sealing ring (200) fixed to the inside of the suitcase body (100). The joint between the suitcase body (100) and the top cover (110) is provided with opposing connecting edges (101) and cover edges (111). The inner side of the sealing ring (200) is provided with several elastic elements (210), and the bottom ends of the elastic elements (210) are fixedly connected to the top surface of the expansion seal strip (300). The inner side of the sealing ring (200) is provided with a groove (202). The sealing ring (200) has a sliding wedge surface (201) on one side of its inner wall. The expansion sealing strip (300) includes a guide wedge (310) and an arc cover strip (320). The top surface of the guide wedge (310) slides against the bottom surface of the sliding wedge surface (201). One side of the arc cover strip (320) is connected to the guide wedge (310) and the other end slides against the inner wall of the sliding wedge surface (201). The bottom surface of the arc cover strip (320) is provided with a sealing gasket layer (321) for contacting the surface of the joint edge (101).

2. The reinforced sealing car trunk according to claim 1, characterized in that, The inner cavity shape of the cover edge (111) and the shape of the arc cover strip (320) are adapted to the surface shape of the connecting edge (101). The top cover (110) and the sealing ring (200) are used to cover the top surface of the connecting edge (101) to realize the joint between the luggage box body (100) and the top cover (110).

3. A reinforced sealing car trunk according to claim 1, characterized in that, The guide wedge (310) and the arc cover strip (320) are integrally formed structures, and the guide wedge (310) and the arc cover strip (320) are flexible elastic rubber or thermoplastic elastomer (TPE) material components, which have good deformation elasticity and aging resistance.

4. A sealed and reinforced car trunk according to claim 1, characterized in that, The bottom surface of the guide wedge (310) is provided with several parallel deformation gaps (311), and the arc cover strip (320) is arched and is used to deform the expansion seal strip (300) into the inner side of the groove cavity (202) during the engagement with the top surface of the connecting edge (101).

5. A reinforced sealing car trunk according to claim 1, characterized in that, The top surface of the guide wedge (310) is inclined and is used to slide in contact with the surface of the sliding wedge (201). The sliding wedge (201) gradually approaches the side wall of the cover edge (111) from bottom to top.

6. A sealed and reinforced car trunk according to claim 1, characterized in that, The elastic element (210) is arranged inside the groove (202) to push the arc cover strip (320) downward to reset.

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