Automobile low-speed alarm dust cover device

Abstract

The utility model provides an automobile low-speed alarm dust cover device. The automobile low-speed alarm dust cover device comprises a side wall gluing face, a torsion clamping groove, a central convex sound transmission plane, a central sound transmission round hole, a convex sound transmission plane, a sound transmission round hole, a concave sound transmission groove, a concave sound transmission long seam, a concave-convex sound transmission transition L plate, a concave square sound transmission large hole and reinforcing ribs. The automobile low-speed alarm dust cover is a cylindrical short U-shaped injection molding part with an opening in one end, a concave-convex sound transmission transition L plate is connected with a convex sound transmission plane and a concave sound transmission groove to form a three-dimensional design, and the three-dimensional design is distributed in a circumferential array mode. Preferably, the short U-shaped opening end of the cylinder is provided with a square flange face and a gluing groove. Preferably, threaded through holes are formed in the four corners of the square flange face. According to the utility model, a three-dimensional multilayer design of non-metal injection molding materials is adopted, the strength is high, the noise can be absorbed, the sound can be clearly transmitted, and the problems of rusting, long production period and high cost of a metal dust cover are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile low-speed alarm devices, and in particular relates to an automobile low-speed alarm dust cover device. Background Art

[0002] The car low-speed alarm device is a type of automotive electronic product. The low-speed alarm device requires a dust cover to protect the sounding device and allow the volume of the sound source to pass through and be transmitted clearly, warning pedestrians and attracting the attention of other vehicles, thereby improving traffic safety.

[0003] For example, the Chinese utility model patent with the authorization announcement number CN218830491U discloses a highly sound-transparent and wear-resistant automobile metal speaker mesh cover, which protects the automobile speaker through a fixed protective net and a dustproof net in a detachable speaker cover. The fixed protective net made of stainless steel metal can strengthen the surface strength of the detachable speaker cover to prevent damage to the automobile speaker caused by impact, and the dustproof net can prevent dust from entering the speaker. The automobile metal speaker mesh cover of this invention needs to connect the fixed protective net and the detachable speaker cover with fasteners to achieve the protection function. The manufacturing process is complicated, there are many parts, the production cycle is long, and the cost is high. At the same time, the metal fixed protective net is generated by stamping, and the mesh structure is a filament structure cut by a stamping machine. Ordinary surface treatment methods cannot meet the requirements of the 200-hour salt spray test of the filament structure, so it is necessary to select stainless steel materials to make the fixed protective net. Utility Model Content

[0004] The technical problem to be solved by the utility model is to improve the automobile low-speed alarm dust cover device in view of the shortcomings of the above-mentioned prior art, adopt a three-dimensional multi-layer structure design, and enhance the product strength from the structural point of view, so that the non-metallic injection molded dust cover can protect the speaker from damage due to collision. The sound-transmitting holes of the dust cover adopt a three-dimensional multi-layer design, and the speaker holes have various shapes, good sound-transmitting effect, and can absorb and digest noise. The one-piece injection molding process is adopted, and a combined structure composed of multiple parts is replaced by one part.

[0005] In order to solve the above technical problems, the technical solution of the utility model provides a car low-speed alarm dust cover device, whose components include a side wall glue surface, a torsion slot, a central convex sound-transmitting plane, a central sound-transmitting circular hole, a convex sound-transmitting plane, a sound-transmitting circular hole, a concave sound-transmitting groove, a concave sound-transmitting long seam, a concave-convex sound-transmitting transition L-plate, a concave square sound-transmitting large hole, and reinforcing ribs. The automobile low-speed alarm dust cover is a cylindrical short U-shaped injection molded part with an opening at one end, and the outer side wall of the cylindrical short U-shape is provided with a side wall glue surface; the side wall of the cylindrical short U-shape is provided with a torsion slot, and more than one torsion slot can be provided; a central convex sound-transmitting plane and a central sound-transmitting circular hole are provided in the center of the non-open end of the cylindrical short U-shape, and reinforcing ribs are provided on the inner cavity side of the cylindrical short U-shape of the central convex sound-transmitting plane; a convex sound-transmitting plane in a fan shape and distributed in an array in a circumferential direction is provided at the non-open end of the cylindrical short U-shape away from the center, and each convex sound-transmitting plane is provided with a sound-transmitting circular hole; a concave-convex sound-transmitting transition L-plate is provided between two adjacent convex sound-transmitting planes, and the concave-convex sound-transmitting transition L-plate and the two adjacent convex sound-transmitting planes are combined to form a concave sound-transmitting groove, a concave sound-transmitting long seam and a concave square sound-transmitting large hole, which are distributed in a circular array.

[0006] Preferably, the above-mentioned automobile low-speed warning dust cover device is provided with a square flange surface on the short U-shaped opening end of the cylinder, and glue grooves are respectively provided at the four corners of the square on the surface of the square flange surface facing the opening end.

[0007] Preferably, in the above-mentioned automobile low-speed warning dust cover device, glue grooves are respectively provided at the four corners of the square on the surface of the square flange surface facing the open end.

[0008] The beneficial effects of the utility model are:

[0009] The three-dimensional multi-layer sound-transmitting design and the combination of various shapes of sound-transmitting holes can absorb noise and improve the sound quality. The hole design of various structural products can allow the sound to be superimposed and enhance the effect of three-dimensional sound quality. The three-dimensional multi-layer injection molding of non-metallic materials is selected to improve the strength of the dust cover from the structural point of view and protect the speaker from damage. The one-piece injection molding process is adopted to replace the combined structure composed of multiple parts with one part, which shortens the assembly process and reduces the production cost. The use of non-metallic material injection molding avoids the problem of choosing stainless steel materials due to the requirements of the 200-hour salt spray test; and non-metallic injection molded parts do not need surface coating to meet the 200-hour salt spray test. The production process is reduced from six processes of stamping, packaging, transportation to the surface treatment unit, surface treatment, packaging, and transportation back to the production unit to one injection molding process, and the production cycle is reduced from several days to a few minutes, with significant cost reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Schematic diagram of the automobile low-speed warning dust cover device of Example 1 (circular);

[0011] Figure 2Schematic diagram of the automobile low-speed warning dust cover device of Example 1 (circular partial enlarged view);

[0012] Figure 3 This is a schematic diagram of the automobile low-speed warning dust cover device of Example 2 (square flange);

[0013] Figure 4 This is a schematic diagram of the automobile low-speed warning dust cover device of Example 3 (the square flange is provided with threaded holes).

[0014] Reference numerals:

[0015] 1. Glue the side wall;

[0016] 2. Twist the card slot;

[0017] 3. Central convex sound-transmitting plane;

[0018] 4. Central sound-transmitting round hole;

[0019] 5. Convex sound-transmitting plane;

[0020] 6. Sound-transmitting round hole;

[0021] 7. Concave sound-transmitting groove;

[0022] 8. Concave sound-transmitting long seam;

[0023] 9. Concave and convex sound-transmitting transition L-board;

[0024] 10. Concave sound-permeable large hole;

[0025] 11. Strengthen the ribs;

[0026] 12. Square flange surface;

[0027] 13. Glue tank;

[0028] 14. Threaded hole. DETAILED DESCRIPTION

[0029] In order to make the present invention more clearly understood, preferred embodiments are described below in conjunction with the accompanying drawings. It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict.

[0030] In the description of the present invention, the directions or positional relationships indicated by terms such as "center", "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. 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. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] Example 1

[0032] like Figure 1 , Figure 2 As shown, the automobile low-speed alarm dust cover device includes a side wall glue surface 1, a torsion slot 2, a central convex sound-transmitting plane 3, a central sound-transmitting circular hole 4, a convex sound-transmitting plane 5, a sound-transmitting circular hole 6, a concave sound-transmitting groove 7, a concave sound-transmitting long seam 8, a concave-convex sound-transmitting transition L-plate 9, a concave square sound-transmitting large hole 10, and a reinforcing rib 11. The automobile low-speed alarm dust cover is a cylindrical short U-shaped injection molded part with an opening at one end, and the outer side wall of the cylindrical short U-shape is provided with a side wall glue surface 1; the side wall of the cylindrical short U-shape is provided with a torsion slot 2, and more than one torsion slot 2 can be provided. In this embodiment, four torsion slots are provided and distributed in an array in the circumferential direction; a central convex sound-transmitting plane 3 is provided near the center of the non-open end of the cylindrical short U-shape, and a central sound-transmitting circular hole 4 is provided on the central convex sound-transmitting plane 3, and a reinforcing rib 11 is provided in the direction of the central convex sound-transmitting plane 3 toward the inner cavity of the cylindrical short U-shape; a convex sound-transmitting plane 5 is provided in a fan-shaped and circumferentially arrayed manner away from the center of the non-open end of the cylindrical short U-shape, and each convex sound-transmitting plane 5 is provided with a sound-transmitting circular hole 6; a concave-convex sound-transmitting transition L plate 9 is provided between two adjacent convex sound-transmitting planes 5, and the concave-convex sound-transmitting transition L plate 9 and the two adjacent convex sound-transmitting planes 5 are combined to form a concave sound-transmitting groove 7, a concave sound-transmitting long seam 8 and a concave square sound-transmitting large hole 10, which are distributed in a circular array.

[0033] Example 2

[0034] Figure 3 Schematic diagram of the automobile low speed warning dust cover device (square flange) of Example 2. Different from Example 1, a square flange surface 12 is provided on the short U-shaped opening end of the cylinder, and glue grooves 13 are provided at the four corners of the square on the surface of the square flange surface 12 facing the opening end.

[0035] Example 3

[0036] Figure 4 Schematic diagram of the automobile low speed warning dust cover device (square flange with threaded holes) of Example 3. Different from Example 2, threaded holes 14 are respectively provided at the four corners of the square flange surface 12.

[0037] Technical features not described in the present invention can be implemented by existing technologies and will not be described here. The above description is not intended to limit the present invention, and any modifications that do not deviate from the spirit and scope of the present invention are still included in the patent protection scope of the present invention.

Claims

1. A low-speed warning dust cover device for an automobile, characterized in that: Its components include a side wall glued surface (1), a torsion groove (2), a central convex sound-transmitting plane (3), a central sound-transmitting circular hole (4), a convex sound-transmitting plane (5), a sound-transmitting circular hole (6), a concave sound-transmitting groove (7), a concave sound-transmitting long seam (8), a concave-convex sound-transmitting transition L-plate (9), a concave square sound-transmitting large hole (10), and a reinforcing rib (11); the automobile low-speed alarm dust cover is a cylindrical short U-shaped injection molded part with an opening at one end, and the outer side wall of the cylindrical short U-shaped part is provided with a side wall glued surface (1); the side wall of the cylindrical short U-shaped part is provided with a torsion groove (2), and more than one torsion groove (2) can be provided; the center of the non-open end of the cylindrical short U-shaped part is provided with A central convex sound-transmitting plane (3) and a central sound-transmitting circular hole (4) are provided, and a reinforcing rib (11) is provided on the inner cavity side of the cylindrical short U-shaped central convex sound-transmitting plane (3); a convex sound-transmitting plane (5) arranged in a fan shape and arranged in an array in a circumferential direction is provided at the non-open end of the cylindrical short U-shaped central portion away from the central portion, and each convex sound-transmitting plane (5) is provided with a sound-transmitting circular hole (6); a concave-convex sound-transmitting transition L-plate (9) is provided between two adjacent convex sound-transmitting planes (5), and the concave-convex sound-transmitting transition L-plate (9) and the two adjacent convex sound-transmitting planes (5) are combined to form a concave sound-transmitting groove (7), a concave sound-transmitting long slit (8) and a concave square sound-transmitting large hole (10), which are arranged in a circumferential array.

2. The automobile low speed warning dust cover device according to claim 1, characterized in that: A square flange surface (12) is provided at the short U-shaped opening end of the cylinder, and glue grooves (13) are respectively provided at the four corners of the square on the surface of the square flange surface (12) facing the opening end.

3. The automobile low speed warning dust cover device according to claim 2, characterized in that: The four corners of the square flange surface (12) are respectively provided with threaded through holes (14).

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