Novel self-tapping screw column structure

Abstract

The embodiment of the utility model provides a novel self-tapping screw column structure. The novel self-tapping screw column structure comprises a first component and a second component which are connected in a fastened mode through a self-tapping screw. The first part is provided with the turned-over edge which is turned over towards the back face of the visual appearance face of the first part, the self-tapping screw column is fixedly connected to the turned-over edge, the visual appearance of the parts cannot be affected even if shrinkage occurs during fastening, glue does not need to be reduced in the material thickness of the connecting position, and the connecting strength of the parts is not weakened while the fastening function of the parts is guaranteed. The second part is bent to form an inserting groove for the flange to be inserted in, the side wall of the inserting groove is bent to form a limiting groove for the self-tapping screw column to be embedded in, the inserting groove and the limiting groove can position the flange and the self-tapping screw column, connection is convenient, and meanwhile the connection strength is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a novel self-tapping screw column structure. Background Art

[0002] The self-tapping screw column is a connection structure that is screwed into by a self-tapping screw to achieve a fastening effect. The self-tapping screw passes through one component and then taps into the screw column on another component to fasten the two components together. The self-tapping screw column structure is widely used in plastic and metal components in the fields of automobiles, electrical appliances, medical treatment, furniture, machinery, construction, etc., and is one of the important connection structures in modern industrial production. For some plastic products that have high requirements on the appearance of components (such as vehicle exterior panels), traditional screw columns are usually connected to the back of the visible appearance surface of the component. Whether it is directly connected to the component or connected through the doghouse root reduction thickness, it is impossible to completely avoid the visible shrinkage of the outer surface corresponding to the connection. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides a novel self-tapping screw column structure to solve the technical problem that the traditional self-tapping screw column structure easily causes the visible appearance surface of the component to shrink.

[0004] A new self-tapping screw column structure provided by an embodiment of the utility model includes a first component and a second component fastened together by a self-tapping screw, the first component is provided with a flange folded toward the back side of its visible appearance, and the self-tapping screw column is fixedly connected to the flange; the second component is bent to form a slot for the flange to be inserted, and the side wall of the slot is bent to form a limiting groove for the self-tapping screw column to be embedded; the limiting groove is provided with a connecting platform that fits with the end face of the self-tapping screw column, and the self-tapping screw passes through the connecting platform to tap into the self-tapping screw column.

[0005] Optionally, the self-tapping screw column is fixedly connected to the flange via a connecting rib; the connecting rib includes two oppositely arranged side ribs and a bottom rib connected between the two side ribs, and the two ends of the side ribs and the bottom ribs are fixedly connected to the flange and the self-tapping screw column respectively.

[0006] Optionally, the self-tapping screw column, the connecting rib and the flange are integrally injection molded.

[0007] The embodiments of the present utility model have the following beneficial effects:

[0008] 1. The self-tapping screw column is fixedly connected to the flange of the first component. Since the flange is located in the invisible area of ​​the component, even if shrinkage occurs during tightening, it will not affect the visible appearance of the component. The thickness of the material at the connection of the self-tapping screw column does not need to be reduced, and its fastening function is ensured without weakening its connection strength;

[0009] 2. The second component is bent to form a slot for inserting the flange, and the side wall of the slot is bent to form a limiting slot for embedding the self-tapping screw column. The slot and the limiting slot are used to position the flange and the self-tapping screw column respectively, which facilitates the connection and further ensures the connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0011] Figure 1 This is a schematic diagram of the connection structure of an embodiment of the utility model;

[0012] Figure 2 This is a schematic diagram of the split structure of an embodiment of the utility model;

[0013] Figure 3 A cross-sectional view of an embodiment of the utility model;

[0014] The numbers in the figure represent:

[0015] 1. Self-tapping screws; 2. First component; 3. Second component; 4. Flanging; 5. Self-tapping screw column; 6. Side ribs; 7. Bottom ribs; 8. Slots; 9. Limiting grooves; 10. Connection platform. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. The terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more features.

[0017] See also Figure 1-Figure 3As shown, an embodiment of the utility model provides a novel self-tapping screw column structure, comprising a first component 2 and a second component 3 fastened together by a self-tapping screw 1, wherein the first component 2 is provided with a flange 4 folded toward the back side of its visible appearance surface, and the self-tapping screw column 5 is fixedly connected to the flange 4. Since the flange 4 is located in the invisible area of ​​the appearance of the first component 2, even if shrinkage occurs during fastening, it will not affect the visible appearance of the components. Therefore, the material thickness of the connection of the self-tapping screw column 5 does not need to be reduced, thereby ensuring its fastening function without weakening its connection strength.

[0018] For example, when the traditional self-tapping screw column 5 is connected to the back of the visible appearance surface of the component through the Doghouse structure, it is usually necessary to reduce the material thickness at the root of the connection to about 0.8mm, and there is a risk of tearing when the self-tapping screw 1 is screwed in. The self-tapping screw column 5 in the embodiment of the utility model can be directly fixedly connected to the flange 4 through a connecting rib with a normal material thickness (usually about 2-3mm), which effectively ensures the connection strength of the self-tapping screw column 5. Specifically, the connecting rib in the embodiment of the utility model includes two oppositely arranged side ribs 6 and a bottom rib 7 connected between the two side ribs 6. The two ends of the side ribs 6 and the bottom rib 7 are fixedly connected to the flange 4 and the self-tapping screw column 5 respectively. In order to ensure the connection strength, the self-tapping screw column 5 and the connecting rib are preferably integrally injection molded with the flange 4.

[0019] The second component 3 is bent to form a slot 8 for inserting the flange 4, and the side wall of the slot 8 is bent to form a limiting slot 9 for inserting the self-tapping screw column 5. The slot 8 and the limiting slot 9 can respectively position the flange 4 and the self-tapping screw column 5 to avoid positional deviation in the connection between the first component 2 and the second component 3, which facilitates the connection and further ensures the connection strength. The limiting slot 9 is provided with a connection platform 10 that fits the end surface of the self-tapping screw column 5, and the connection platform 10 is provided with a through hole for the self-tapping screw 1 to pass through. The self-tapping screw 1 is passed through the connection platform 10 and tapped into the self-tapping screw column 5 to fasten the first component 2 and the second component 3.

[0020] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A novel self-tapping screw column structure, comprising a first component and a second component fastened and connected by a self-tapping screw, characterized in that: The first component is provided with a flange folded toward the back side of its visible appearance surface, and a self-tapping screw column is fixedly connected to the flange; the second component is bent to form a slot for the flange to be inserted into, and the side wall of the slot is bent to form a limiting groove for the self-tapping screw column to be embedded in; the limiting groove is provided with a connecting platform that fits with the end face of the self-tapping screw column, and the self-tapping screw passes through the connecting platform and taps into the self-tapping screw column.

2. A novel self-tapping screw column structure according to claim 1, characterized in that: The self-tapping screw column is fixedly connected to the flange via a connecting rib; the connecting rib comprises two oppositely arranged side ribs and a bottom rib connected between the two side ribs, and the two ends of the side ribs and the bottom rib are fixedly connected to the flange and the self-tapping screw column respectively.

3. A novel self-tapping screw column structure according to claim 2, characterized in that: The self-tapping screw column, the connecting rib and the flange are integrally injection-molded.

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