Plastic bottom shell with supporting and limiting assembly structure

Abstract

The utility model relates to the technical field of injection molding parts, in particular to a plastic bottom shell with a supporting and limiting assembly structure, which comprises a bottom shell body formed by integral injection molding, the bottom shell body comprises a base plate, a fixed supporting seat, a connecting rib and a supporting and limiting column, the base plate is provided with two groups of connecting arms, the two connecting arms are oppositely arranged on the two sides of the base plate, the fixed supporting seat is arranged on the upper surface of the base plate, one end of the connecting rib is connected with the fixed supporting seat, and the other end of the connecting rib is connected with the connecting arms. The supporting limiting column comprises the lower surface arranged on the base plate and comprises a front end connecting column and a rear end connecting column, the front end connecting column is located on the lower side of the connecting arm, and the rear end connecting column is located on the lower side of the fixed supporting base. The bottom shell body is formed through integral injection molding, has the advantages of being high in integrity and stable in structure, can effectively support and fix a steering wheel steering mechanism, and improves overall stability and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molded parts, in particular to a plastic bottom shell with a support and limit assembly structure. Background Art

[0002] An injection molded housing refers to a plastic housing component produced by an injection molding process. Injection molding is a common plastic processing method. By injecting molten plastic material into a mold and cooling and solidifying it under a certain pressure and temperature, a product or component of the desired shape is finally formed. During the injection molding process, the plastic material is injected into the mold and fills the mold cavity fully. After cooling, the formed housing component can be taken out.

[0003] In the use of plastic shells for some steering structures, generally, the strength requirements for the support structure are relatively high. The existing support structure and assembly limit structure are difficult to control. Therefore, new improvements need to be made to the structure of the existing plastic shell. Summary of the Utility Model

[0004] To solve the above problems, the bottom shell body of the utility model is formed by integral injection molding, with the characteristics of strong integrity and stable structure. It is a plastic bottom shell with a support and limit assembly structure that can effectively support and fix the steering wheel steering mechanism, improving the overall stability and reliability.

[0005] The technical solution adopted by the utility model is as follows: A plastic bottom shell with a support and limit assembly structure for fixing a steering wheel steering mechanism, including a bottom shell body formed by integral injection molding. The bottom shell body includes a substrate, a fixed support seat, connecting rib strips, and support and limit columns. The substrate is provided with connecting arms. There are two groups of the connecting arms, and the two groups of connecting arms are oppositely arranged on both sides of the substrate. The fixed support seat is arranged on the upper surface of the substrate. One end of the connecting rib strip is connected to the fixed support seat, and the other end is connected to the connecting arm. The support and limit column is arranged on the lower surface of the substrate. The support and limit column includes a front connecting column and a rear connecting column. The front connecting column is located below the connecting arm, and the rear connecting column is located below the fixed support seat.

[0006] For further improvement of the above solution, an extension platform is arranged on one side of the substrate where the fixed support seat is located. The extension platform is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are connected to the fixed support seat.

[0007] For further improvement of the above solution, a weight reduction groove is arranged between the plurality of reinforcing ribs. A first through groove and a second through groove are arranged in the weight reduction groove. The first through groove penetrates the substrate, and the second through groove penetrates the fixed support seat.

[0008] A further improvement to the above solution is that a thickening platform is provided on one side of the substrate located at the reinforcing rib, and a through hole is provided on the thickening platform.

[0009] A further improvement to the above solution is that the fixed support seat is provided with an inclined platform on the upper surface, a plurality of support connection columns are provided on the inclined platform, and support connection holes are provided on the support connection columns.

[0010] A further improvement to the above solution is that support ribs are provided between the plurality of support connection columns to connect them to each other.

[0011] A further improvement to the above solution is that the upper surface of the connecting rib is inclined toward the end of the connecting arm.

[0012] A further improvement to the above solution is that the front connecting column is provided with a front connecting shaft, and the front connecting shaft is an axial structural member made of metal and is connected to the front connecting column by threads.

[0013] A further improvement to the above solution is that the rear end connecting column is provided with a rear end connecting shaft, and the rear end connecting shaft is an axial structural member made of metal and is connected to the rear end connecting column by threads.

[0014] A further improvement to the above solution is that a front end limit platform is formed between the front end connecting shaft and the front end connecting column, and a rear end limit platform is formed between the rear end connecting shaft and the rear end connecting column.

[0015] The beneficial effects of the utility model are:

[0016] Compared with the existing steering wheel fixed bottom shell, the bottom shell body of the utility model is formed by integral injection molding, has the characteristics of strong integrity and stable structure, can effectively support and fix the steering wheel steering mechanism, and improve the overall stability and reliability. The design of the fixed support seat and the connecting ribs can effectively support the steering mechanism, provide sufficient support force during the steering process, and ensure that the steering operation is smooth and does not loosen or shake. The support limit column is set on the lower surface of the bottom shell. Through the design of the front connecting column and the rear connecting column, the limiting effect on the steering mechanism is realized, and the steering mechanism is prevented from exceeding the set range during the movement process, ensuring the accuracy and stability of the steering stroke. The design of the connecting arm, the fixed support seat and the connecting ribs makes the bottom shell body easy to install and disassemble, improves the convenience and efficiency of installation, and saves the time cost of maintenance and replacement. The design of the connecting arm and the support limit column is reasonable, and the space of the bottom shell is fully utilized, so that the bottom shell body can achieve stable support and limit functions while reducing the volume as much as possible, meeting the requirements of compact design. The bottom shell body made of plastic material has good wear resistance and corrosion resistance, can be used for a long time without being easily damaged by the external environment, and prolongs the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic three-dimensional view of the plastic bottom shell with a support and limit assembly structure according to the present utility model;

[0018] Figure 2 is Figure 1 Schematic three-dimensional view of another perspective of the plastic bottom shell with a support and limit assembly structure in

[0019] Figure 3 is Figure 1 Schematic three-dimensional view of another perspective of the plastic bottom shell with a support and limit assembly structure in

[0020] Description of reference numerals: Bottom shell body 10, substrate 1, extension table 11, reinforcing rib 12, weight reduction groove 13, first through groove 131, second through groove 132, thickening table 14, through hole 141, fixed support seat 2, inclined table 21, support connection column 22, support connection hole 221, support rib 222, connection rib 3, support limit column 4, front end connection column 41, front end connection shaft 411, front end limit table 412, rear end connection column 42, rear end connection shaft 421, rear end limit table 422, connection arm 5. Detailed implementation manners

[0021] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0024] Such as Figures 1 to 3As shown, in one embodiment of the utility model, a plastic bottom shell with a support and limit assembly structure is involved, which is used for fixing a steering wheel steering mechanism, and includes a bottom shell body 10 formed by integral injection molding, the bottom shell body 10 includes a base plate 1, a fixed support seat 2, a connecting rib 3 and a support and limit column 4, the base plate 1 is provided with a connecting arm 5, the connecting arm 5 is provided with two groups, and the two groups of connecting arms 5 are relatively arranged on both sides of the base plate 1, the fixed support seat 2 is arranged on the upper surface of the base plate 1, one end of the connecting rib 3 is connected to the fixed support seat 2, and the other end is connected to the connecting arm 5; the support and limit column 4 includes a front connecting column 41 and a rear connecting column 42 arranged on the lower surface of the base plate 1, the front connecting column 41 is located at the lower side of the connecting arm 5, and the rear connecting column 42 is located at the lower side of the fixed support seat 2. The bottom shell body 10 of this embodiment is formed by integral injection molding, has the characteristics of strong integrity and stable structure, can effectively support and fix the steering wheel steering mechanism, and improve the overall stability and reliability. The design of the fixed support seat 2 and the connecting rib 3 can effectively support the steering mechanism, provide sufficient support force during the steering process, and ensure that the steering operation is smooth and does not loosen or shake. The support limit column 4 is set on the lower surface of the bottom shell. Through the design of the front connecting column 41 and the rear connecting column 42, the limiting effect on the steering mechanism is realized, so as to prevent the steering mechanism from exceeding the set range during the movement, and ensure the accuracy and stability of the steering stroke. The design of the connecting arm 5, the fixed support seat 2 and the connecting rib 3 makes the bottom shell body 10 easy to install and disassemble, improves the convenience and efficiency of installation, and saves the time cost of maintenance and replacement. The design of the connecting arm 5 and the support limit column 4 is reasonable, and the space of the bottom shell is fully utilized, so that the bottom shell body 10 can achieve stable support and limit functions while reducing the volume as much as possible, meeting the requirements of compact design. The bottom shell body 10 made of plastic material has good wear resistance and corrosion resistance, can be used for a long time without being easily damaged by the external environment, and prolongs the service life of the product.

[0025] On one side of the fixed support base 2, the substrate 1 is provided with an extension platform 11. The extension platform 11 is provided with a plurality of reinforcing ribs 12, and the plurality of reinforcing ribs 12 are connected to the fixed support base 2. Specifically, a weight-reducing groove 13 is provided between the plurality of reinforcing ribs 12. A first through groove 131 and a second through groove 132 are provided in the weight-reducing groove 13. The first through groove 131 penetrates the substrate 1, and the second through groove 132 penetrates the fixed support base 2. On one side of the substrate 1 where the reinforcing ribs 12 are located, a thickening platform 14 is provided, and a through hole 141 is provided on the thickening platform 14. In this embodiment, through the arrangement of the extension platform 11 and the reinforcing ribs 12, the stiffness and load-bearing capacity of the substrate 1 can be effectively enhanced, and the overall stability and durability of the bottom shell can be improved. The design of the weight-reducing groove 13 between the plurality of reinforcing ribs 12 can reduce the total weight of the bottom shell on the premise of ensuring the structural strength, meeting the requirements of lightweight design, and contributing to improving the fuel economy and power performance of the vehicle. The through hole 141 provided on the thickening platform 14 can be used to connect other components or for fixing, with good versatility and flexibility, which is conducive to the connection between the bottom shell and other components and the stability of the overall structure. The arrangement of the first through groove 131 and the second through groove 132 forms a channel between the substrate 1 and the fixed support base 2, which helps with the layout and conduction of pipelines or other components, makes full use of the internal space of the bottom shell, and improves the overall integration and compactness.

[0026] On the upper surface of the fixed support base 2, an inclined platform 21 is provided. A plurality of support connection columns 22 are provided on the inclined platform 21, and support connection holes 221 are provided on the support connection columns 22. Specifically, support rib strips 222 are provided between the plurality of support connection columns 22 to connect them to each other. In this embodiment, the inclined platform 21 and the support connection columns 22 are provided on the fixed support base 2. Through the design of the support connection holes 221 and the support rib strips 222, the stability and load-bearing capacity of the support part of the bottom shell can be effectively increased, and the fixing effect of the steering mechanism can be improved. The connection design between the support connection columns 22 and the support rib strips 222 makes the overall structure more solid and stable, can effectively resist external vibrations and impacts, and ensures the stability and safety of the steering mechanism under various road conditions. The arrangement of the support connection columns 22 and the support rib strips 222 can effectively reduce the vibrations and noises generated by the bottom shell during the steering process, improving the driving comfort and handling feel.

[0027] The upper surface of the connecting rib strip 3 is inclined towards the end of the connecting arm 5. In this embodiment, an inclined structure is formed to better conform to the usage environment and ergonomics during the operation of the steering wheel.

[0028] The front connecting column 41 is provided with a front connecting shaft 411. The front connecting shaft 411 is a shaft-shaped structural member made of metal and is threadedly connected to the front connecting column 41. The rear connecting column 42 is provided with a rear connecting shaft 421. The rear connecting shaft 421 is a shaft-shaped structural member made of metal and is threadedly connected to the rear connecting column 42. Specifically, a front limiting platform 412 is formed between the front connecting shaft 411 and the front connecting column 41, and a rear limiting platform 422 is formed between the rear connecting shaft 421 and the rear connecting column 42. In this embodiment, by providing the front connecting shaft 411 and the rear connecting shaft 421 made of metal and threadedly connecting them to the front connecting column 41 and the rear connecting column 42, the front limiting platform 412 and the rear limiting platform 422 are formed, which can effectively realize the limiting function of the steering mechanism and ensure the accuracy and stability of the steering stroke. The metal connecting shaft structural member has good wear resistance and corrosion resistance, can be used for a long time without being easily damaged by the external environment, and extends the service life of the bottom shell. The settings of the front limiting platform 412 and the rear limiting platform 422 enable the steering mechanism to be accurately positioned within the specified stroke range, avoiding abnormalities or damages caused by exceeding the design range. Through the design of threaded connection, the front connecting shaft 411 and the rear connecting shaft 421 can be conveniently installed and disassembled, improving the convenience of maintenance and replacement and saving the time cost of maintenance and replacement.

[0029] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A plastic bottom shell with a support and limit assembly structure, used for fixing a steering wheel steering mechanism, characterized in that: It includes a bottom shell body formed by integral injection molding, the bottom shell body includes a base plate, a fixed support seat, connecting ribs and a support limiting column, the base plate is provided with a connecting arm, the connecting arm is provided with two groups, the two groups of connecting arms are relatively arranged on both sides of the base plate, the fixed support seat is arranged on the upper surface of the base plate, one end of the connecting rib is connected to the fixed support seat, and the other end is connected to the connecting arm; the support limiting column includes a lower surface of the base plate, the support limiting column includes a front connecting column and a rear connecting column, the front connecting column is located on the lower side of the connecting arm, and the rear connecting column is located on the lower side of the fixed support seat.

2. The plastic bottom shell with a support and limit assembly structure according to claim 1, characterized in that: An extension platform is arranged on one side of the base plate located at the fixed support seat, and the extension platform is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are connected to the fixed support seat.

3. The plastic bottom shell with a support and limit assembly structure according to claim 2, characterized in that: A plurality of the reinforcing ribs are spaced apart with weight-reducing grooves, wherein the weight-reducing grooves are provided with a first through groove and a second through groove, wherein the first through groove passes through the base plate, and the second through groove passes through the fixed support seat.

4. The plastic bottom shell with a support and limit assembly structure according to claim 3, characterized in that: A thickening platform is arranged on one side of the substrate located at the reinforcing rib, and a through hole is arranged on the thickening platform.

5. The plastic bottom shell with a support and limit assembly structure according to claim 1, characterized in that: The fixed support seat has an inclined platform on its upper surface, a plurality of support connection columns are arranged on the inclined platform, and support connection holes are arranged on the support connection columns.

6. The plastic bottom shell with a support and limit assembly structure according to claim 5, characterized in that: Support ribs are arranged between the plurality of support connection columns to connect them to each other.

7. The plastic bottom shell with a support and limit assembly structure according to claim 1, characterized in that: The upper surface of the connecting rib is inclined toward the end of the connecting arm.

8. The plastic bottom shell with a support and limit assembly structure according to claim 1, characterized in that: The front end connecting column is provided with a front end connecting shaft, and the front end connecting shaft is an axial structural member made of metal and is connected to the front end connecting column through threads.

9. The plastic bottom shell with a support and limit assembly structure according to claim 8, characterized in that: The rear end connecting column is provided with a rear end connecting shaft, and the rear end connecting shaft is an axial structural member made of metal and is connected to the rear end connecting column through threads.

10. The plastic bottom shell with a support and limit assembly structure according to claim 9, characterized in that: A front end limit platform is formed between the front end connecting shaft and the front end connecting column, and a rear end limit platform is formed between the rear end connecting shaft and the rear end connecting column.

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