Wheel cover with sound-absorbing cotton original positioning structure
By setting up a boss and hot runner glue port on the wheel cover body, combined with hot runner injection molding technology, the native positioning of sound-absorbing cotton is achieved, the problem of material waste in the existing technology is solved, and positioning stability and material utilization are improved.
Patent Information
- Application Number
- CN202422605103.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-27
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-27
AI Technical Summary
The sound-absorbing cotton positioning structure on existing car wheel covers requires additional cross ribs, resulting in waste of material.
Hot runner injection molding technology is used to set up a boss and a hot runner rubber port on the wheel cover body, and position holes are set in the concave cavity of the sound absorbing cotton. The hot runner rubber port is plugged into to achieve the positioning of the sound absorbing cotton, avoiding the use of cross ribs.
It saves materials and improves the positioning stability and material utilization of sound-absorbing cotton.
Smart Images
Figure CN223132175U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wheel covers, and particularly relates to a wheel cover with a sound-absorbing cotton native positioning structure. Background Art
[0002] Automobile parts are the various units that make up the overall automobile parts processing, as well as the products serving the automobile parts processing. The automobile wheel cover is a very important part of the automobile parts, which is installed on the body sheet metal above the wheel. The automobile wheel cover can not only play a decorative role for the wheel, but also prevent stones and mud from splashing onto the body and causing damage to the body sheet metal, and at the same time play a role in sound absorption and noise reduction.
[0003] Nowadays, the automobile wheel cover generally installs sound-absorbing cotton to play a role in sound absorption and noise reduction. The positioning structure of the sound-absorbing cotton on the automobile wheel cover is mostly cross ribs to position the sound-absorbing cotton, and sometimes additional sliders are needed, which results in waste of raw materials. Content of the Utility Model
[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a wheel cover with a sound-absorbing cotton native positioning structure to solve the problems put forward in the above background art.
[0005] A wheel cover with a sound-absorbing cotton native positioning structure includes:
[0006] A wheel cover body, on the surface of which there is a convex platform formed by injection molding in one piece, and a hot runner gate is integrally arranged on the surface of the convex platform;
[0007] Sound-absorbing cotton, behind which there is a concave cavity, the convex platform is inserted into the concave cavity, positioning holes are opened in the concave cavity, and the hot runner gate is inserted into the positioning holes.
[0008] Further, a glue layer is coated on the rear end of the sound-absorbing cotton.
[0009] Further, the glue layer is composed of silicone glue.
[0010] Further, the glue layer is composed of polyurethane glue.
[0011] Further, an outer film layer is bonded to the rear part of the glue layer.
[0012] Further, the outer film layer is release paper.
[0013] Advantages of the present utility model: For the wheel cover with a sound-absorbing cotton original positioning structure, by providing a boss and a hot runner gate on the wheel cover body, the wheel cover body is formed by hot runner injection molding, and the hot runner gate is the gate generated during hot runner injection molding and is cylindrical. After a corresponding positioning hole is opened inside the concave cavity of the sound-absorbing cotton, when the concave cavity of the sound-absorbing cotton is inserted into the boss, the hot runner gate will be inserted into the positioning hole, so as to position the sound-absorbing cotton. In this way, using the gate generated during hot runner injection molding as the positioning structure of the sound-absorbing cotton does not require adding cross ribs, saving materials. Description of the Drawings
[0014] Figure 1 It is a schematic diagram of the whole of the present utility model;
[0015] Figure 2 It is a schematic diagram of the wheel cover body of the present utility model;
[0016] Figure 3 It is a schematic diagram of the sound-absorbing cotton of the present utility model;
[0017] Figure 4 It is a partial sectional schematic diagram of the sound-absorbing cotton of the present utility model.
[0018] In the figure: 1 - wheel cover body, 11 - boss, 12 - hot runner gate, 2 - sound-absorbing cotton, 21 - concave cavity, 22 - positioning hole, 23 - adhesive layer, 24 - outer film layer. Specific Embodiments
[0019] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present utility model. Therefore, the drawings and descriptions are considered to be exemplary in nature rather than restrictive.
[0020] To better understand the purpose, structure and function of the present utility model, the following further describes in detail a wheel cover with a sound-absorbing cotton original positioning structure of the present utility model in conjunction with the drawings.
[0021] Example 1, please refer to Figures 1 - 3 , a wheel cover with a sound-absorbing cotton original positioning structure, including:
[0022] A wheel cover body 1, on the surface of the wheel cover body 1, there is an integrally injection-molded boss 11, and a hot runner gate 12 is integrally provided on the surface of the boss 11. The wheel cover body 1 is formed by hot runner injection molding, and the boss 11 is also formed by hot runner injection molding. The hot runner gate 12 is the gate generated during hot runner injection molding and can be used as a positioning structure;
[0023] Sound-absorbing cotton 2, with a concave cavity 21 provided behind the sound-absorbing cotton 2. The convex platform 11 is inserted into the concave cavity 21. A positioning hole 22 is opened in the concave cavity 21, and the hot runner gate 12 is inserted into the positioning hole 22. The concave cavity 21 of the sound-absorbing cotton 2 is for corresponding to the convex platform 11, so that the convex platform 11 can be inserted into the concave cavity 21. And a positioning hole 22 is opened inside the concave cavity 21. After the convex platform 11 is inserted into the concave cavity 21, the hot runner gate 12 can be inserted into the positioning hole 22 to play a role in positioning the sound-absorbing cotton 2.
[0024] In summary, by providing the convex platform 11 and the hot runner gate 12 on the wheelhouse body 1, the wheelhouse body 1 is formed by hot runner injection molding, and the hot runner gate 12 is the gate generated during hot runner injection molding and is cylindrical. After a corresponding positioning hole 22 is opened inside the concave cavity 21 of the sound-absorbing cotton 2, with the concave cavity 21 of the sound-absorbing cotton 2 inserted into the convex platform 11, the hot runner gate 12 will be inserted into the positioning hole 22 to position the sound-absorbing cotton 2 in this way. Using the gate generated during hot runner injection molding as the positioning structure of the sound-absorbing cotton 2 does not require adding cross ribs and saves materials.
[0025] Example 2, please refer to Figure 4 , a glue layer 23 is coated on the rear end of the sound-absorbing cotton 2. The glue layer 23 is composed of silicone glue. An outer film layer 24 is bonded to the rear of the glue layer 23. The outer film layer 24 is a release paper. When installing the sound-absorbing cotton 2 onto the wheelhouse body 1, by tearing off the outer film layer 24 and then pasting the sound-absorbing cotton 2 on the wheelhouse body 1, the glue layer 23 can be used to stick to the wheelhouse body 1. The glue layer 23 uses silicone glue, and silicone glue can stick well to plastics. In this way, after positioning the sound-absorbing cotton 2, the positioning stability of the sound-absorbing cotton 2 can be further ensured.
[0026] Example 3, please refer to Figure 4 , a glue layer 23 is coated on the rear end of the sound-absorbing cotton 2. The glue layer 23 is composed of polyurethane glue. An outer film layer 24 is bonded to the rear of the glue layer 23. The outer film layer 24 is a release paper. When installing the sound-absorbing cotton 2 onto the wheelhouse body 1, by tearing off the outer film layer 24 and then pasting the sound-absorbing cotton 2 on the wheelhouse body 1, the glue layer 23 can be used to stick to the wheelhouse body 1. The glue layer 23 uses polyurethane glue, and polyurethane glue can stick well to plastics. In this way, after positioning the sound-absorbing cotton 2, the positioning stability of the sound-absorbing cotton 2 can be further ensured.
[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A wheel cover with a primary positioning structure of sound-absorbing cotton, characterized in that, Including: A wheel housing body (1), on the surface of the wheel housing body (1) there is a convex platform (11) integrally formed by injection molding, and on the surface of the convex platform (11) there is a hot runner gate (12) integrally arranged; A sound-absorbing cotton (2), behind the sound-absorbing cotton (2) there is a concave cavity (21), the convex platform (11) is inserted into the concave cavity (21), a positioning hole (22) is opened in the concave cavity (21), and the hot runner gate (12) is inserted into the positioning hole (22).
2. The wheel housing with a primary positioning structure with sound-absorbing cotton according to claim 1, characterized in that: A glue layer (23) is coated on the rear end of the sound-absorbing cotton (2).
3. The wheel cover with a sound-absorbing cotton original positioning structure according to claim 2, characterized in that: The glue layer (23) is composed of silicone glue.
4. The wheel housing with a sound-absorbing cotton primary positioning structure according to claim 2, characterized in that: The glue layer (23) is composed of polyurethane glue.
5. A wheel housing with a sound-absorbing cotton original positioning structure according to any one of claims 3 or 4, characterized in that: An outer film layer (24) is bonded to the rear part of the glue layer (23).
6. The wheel housing with a sound-absorbing cotton original positioning structure according to claim 5, characterized in that: The outer film layer (24) is a release paper.