Stably-mounted high-strength automobile threshold

Abstract

The utility model discloses a steadily-installed high-strength automobile doorsill which comprises a doorsill body, the doorsill body comprises a composite base plate layer, a buffer layer is arranged on the inner side of the composite base plate layer, hemispherical buffer blocks which are transversely and tightly arranged are arranged in the buffer layer, and a waterproof protective layer is arranged on the upper side of the composite base plate layer. A first protection plate inclining downwards is arranged on the left side of the doorsill body, a 7-shaped first installation edge portion is arranged at the bottom of the first protection plate, a second protection plate inclining downwards is arranged on the right side of the doorsill body, and a second installation edge portion inclining outwards is arranged at the bottom of the second protection plate. The doorsill body is arranged and comprises the composite substrate layer, the buffer layer and the waterproof protective layer, so that the strength and the waterproof performance of the doorsill body are better enhanced, and the service life is prolonged; the first protection plate and the second protection plate are arranged to be attached to the automobile frame more tightly, and the automobile doorsill is better fixed by arranging the first installation edge part and the second installation edge part.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts, specifically, it relates to a high-strength automotive door sill that is securely installed. Background Technology

[0002] With the rapid development of the automotive industry, the performance optimization of automotive body structures has received increasing attention. As a crucial protective component at the bottom of the vehicle body, the door sill not only needs to withstand the mechanical loads and impacts of daily use but also requires excellent sealing performance to prevent the intrusion of corrosive substances such as moisture and mud. Traditional door sills mostly use a single-layer metal structure, which, while possessing a certain strength, suffers from insufficient cushioning performance and weak resistance to deformation. In side impacts, it is prone to plastic deformation, affecting the integrity of the vehicle body structure. Furthermore, existing door sill structures often employ a flat mounting edge design, resulting in limited fit with the chassis. Under complex operating conditions, this can easily lead to assembly gaps, causing vibration, abnormal noise, and seal failure. Some improved products enhance corrosion resistance by adding a coating to the substrate surface, but the poor stress matching between multi-layer structures can lead to delamination and peeling over long-term use. Therefore, developing an automotive door sill structure that combines high strength, excellent cushioning performance, long-lasting waterproof sealing, and stable installation characteristics is of great significance for improving vehicle safety performance and extending the service life of components. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide a stable and high-strength car door sill. By setting the door sill body as a composite substrate layer, a buffer layer and a waterproof protective layer, the strength and waterproof performance of the door sill body are better enhanced, and the service life is increased. By setting the first guard plate and the second guard plate, the door sill is more tightly attached to the car frame. Furthermore, by setting the first mounting edge and the second mounting edge, the car door sill is better fixed.

[0004] To solve the above-mentioned technical problems, this utility model discloses a stable and high-strength car door sill, comprising: a door sill body, the door sill body including a composite substrate layer, a buffer layer provided on the inner side of the composite substrate layer, a hemispherical buffer block arranged in a horizontally close manner in the buffer layer, a waterproof protective layer provided on the upper side of the composite substrate layer, a downwardly inclined first guard plate provided on the left side of the door sill body, a first mounting edge in the shape of a number 7 provided at the bottom of the first guard plate, and a downwardly inclined second guard plate provided on the right side of the door sill body, a second mounting edge inclined outwardly at the bottom of the second guard plate.

[0005] According to one embodiment of the present invention, the threshold body is provided with a fixing hole.

[0006] According to one embodiment of the present invention, the thickness of the composite substrate layer accounts for 30-40% of the total height.

[0007] According to one embodiment of the present invention, the aforementioned waterproof protective layer is an engineering plastic.

[0008] Compared with the prior art, the present invention can achieve the following technical effects:

[0009] 1) By setting the door sill body as a composite substrate layer, buffer layer and waterproof protective layer, the strength and waterproof performance of the door sill body are better enhanced, and the service life is increased; by setting the first guard plate and the second guard plate, the door sill is more tightly attached to the car frame, and by setting the first mounting edge and the second mounting edge, the car door sill is better fixed.

[0010] Of course, any product implementing this utility model does not necessarily need to achieve all of the above technical effects at the same time. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of a stable and high-strength car door sill according to an embodiment of the present invention.

[0013] Figure 2 This is an embodiment of the present utility model. Figure 1 Cross-sectional view of the middle threshold body.

[0014] Attached Figure Labels

[0015] Threshold body 10, fixing hole 11, composite substrate layer 20, buffer layer 30, hemispherical buffer block 40, waterproof protective layer 50, first guard plate 60, first mounting edge 70, second guard plate 80, second mounting edge 90. Detailed Implementation

[0016] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.

[0017] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a stable and high-strength car door sill according to an embodiment of the present invention. Figure 2 This is an embodiment of the present utility model. Figure 1A cross-sectional view of the sill body 10. As shown in the figure, a stable and high-strength car sill includes: a sill body 10, the sill body 10 including a composite substrate layer 20, a buffer layer 30 provided inside the composite substrate layer 20, hemispherical buffer blocks 40 arranged laterally and closely inside the buffer layer 30, and a waterproof protective layer 50 provided on the upper side of the composite substrate layer 20.

[0018] In detail, the door sill body 10 includes a composite substrate layer 20, the thickness of which accounts for 30-40% of the total height. Then, a buffer layer 30 is provided inside the composite substrate layer 20. The buffer layer 30 has hemispherical buffer blocks 40 arranged laterally and closely to buffer the large external pressure and enhance the overall pressure resistance of the door sill body 10. Finally, a waterproof protective layer 50 is provided on the upper side of the composite substrate layer 20. The waterproof protective layer 50 is made of engineering plastic, which makes the surface of the car door sill waterproof.

[0019] Furthermore, the left side of the threshold body 10 is provided with a downwardly inclined first guard plate 60, the bottom of the first guard plate 60 is provided with a 7-shaped first mounting edge 70, the right side of the threshold body 10 is provided with a downwardly inclined second guard plate 80, the bottom of the second guard plate 80 is provided with an outwardly inclined second mounting edge 90.

[0020] In detail, a downwardly inclined first guard plate 60 is provided on the left side of the sill body 10, and a downwardly inclined second guard plate 80 is provided on the right side of the sill body 10. By setting the first guard plate 60 and the second guard plate 80, they fit more closely to the car frame. The bottom of the first guard plate 60 is provided with a 7-shaped first mounting edge 70, and the bottom of the second guard plate 80 is provided with an outwardly inclined second mounting edge 90. By setting the first mounting edge 70 and the second mounting edge 90, the car sill is better secured.

[0021] Furthermore, a fixing hole 11 is provided on the threshold body 10 for installation.

[0022] In summary, this utility model enhances the strength and waterproof performance of the door sill body 10 by setting it as a composite substrate layer 20, a buffer layer 30, and a waterproof protective layer 50, thereby extending its service life. Furthermore, by setting the first guard plate 60 and the second guard plate 80, the door sill fits more tightly to the car frame. Additionally, by setting the first mounting edge 70 and the second mounting edge 90, the door sill is better secured.

[0023] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A high-strength car door sill with stable installation, characterized in that, include: The threshold body includes a composite substrate layer, a buffer layer on the inner side of the composite substrate layer, a hemispherical buffer block arranged in close order in the buffer layer, a waterproof protective layer on the upper side of the composite substrate layer, a first guard plate that slopes downward on the left side of the threshold body, a first mounting edge in the shape of a number 7 at the bottom of the first guard plate, and a second guard plate that slopes downward on the right side of the threshold body, a second mounting edge that slopes outward at the bottom of the second guard plate.

2. The high-strength, securely installed car door sill as described in claim 1, characterized in that, The threshold body is provided with fixing holes.

3. The high-strength, securely installed car door sill as described in claim 1, characterized in that, The thickness of the composite substrate layer accounts for 30-40% of the total height.

4. The high-strength, securely installed car door sill as described in claim 1, characterized in that, The waterproof protective layer is made of engineering plastic.

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