Stud riveting structure

Abstract

The utility model discloses a stud riveting structure which comprises a thin workpiece with a riveting position and a stud riveted with the riveting position, and the riveting position comprises a riveting groove formed in the upper end of the thin workpiece and a riveting protruding part fixedly arranged in the middle of the riveting groove. The stud comprises a stud body with a connecting cavity, a riveting part arranged at the lower end of the stud body and connected with the riveting groove and a riveting cavity arranged in the riveting part, communicated with the connecting cavity and used for being connected with the riveting protrusion in a matched mode, and the riveting groove does not penetrate through the thin workpiece, so that the stud or stamping marks can be prevented from being exposed on the appearance surface; the riveting protruding part in the middle of the riveting groove is connected with the riveting cavity in the stud, the pulling force acting on the stud can be dispersed to a larger area, when the pulling force acts on the stud, the pulling force is not only concentrated on the contact face of the riveting part and the riveting groove any more, and the anti-drawing capacity is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of notebook thin exterior parts processing technology, specifically relating to a stud riveting structure. Background Technology

[0002] Laptops contain numerous internal components, such as the motherboard, hard drive, memory, and heatsink. These components typically require screws for fastening. Riveting studs to the metal exterior parts provides a reliable screwing point. Compared to directly tapping (machined internal threads) the metal exterior parts, riveting studs can withstand greater tightening forces, preventing damage to the threads on the exterior parts from repeated screw removal and ensuring the stability and reliability of component installation.

[0003] One traditional riveting structure involves creating a through-hole in the thin outer component and riveting the stud into the hole by extrusion. However, this structure often results in the stud or stamping marks being visible on the outer surface, failing to meet the aesthetic requirements of laptop components. Another traditional riveting structure involves creating a recessed flat groove in the thin outer component and riveting the stud into the groove by extrusion. However, this structure is prone to loosening or separation at the joint between the stud and the outer component under tensile stress. This results in insufficient tensile strength, failing to provide adequate and reliable support for screw insertion. After repeated tightening forces or screw removal, the stud may loosen or even fall off, affecting the stability and reliability of internal laptop components (such as the motherboard, hard drive, memory, and heatsink), thus reducing the product's lifespan and quality. Utility Model Content

[0004] In view of the technical problems existing in the prior art, this utility model provides a stud riveting structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stud riveting structure includes a thin workpiece having a riveting position and a stud riveted to the riveting position. The riveting position includes a riveting groove disposed at the upper end of the thin workpiece and a riveting protrusion fixed in the middle of the riveting groove. The stud includes a column having a connecting cavity, a riveting portion disposed at the lower end of the column and connected to the riveting groove, and a riveting cavity disposed in the riveting portion and communicating with the connecting cavity for engaging with the riveting protrusion.

[0007] Furthermore, the riveting groove includes a first riveting groove recessed in a direction away from the upper end face of the thin workpiece and a second riveting groove adjacent to the upper end of the first riveting groove for positioning the riveting part. The first riveting groove includes an inclined sidewall with its upper end inclined toward the riveting protrusion and a first vertical sidewall with one end connected to the lower end of the inclined sidewall and the other end connected to the bottom surface of the first riveting groove.

[0008] Furthermore, the second riveting groove is a stepped groove. The second riveting groove includes a horizontal support surface connected to the upper end of the inclined sidewall and a vertical positioning surface connected to the horizontal support surface. A plurality of V-shaped tooth grooves connected end to end are provided on the vertical positioning surface. A plurality of V-shaped teeth adapted to the V-shaped tooth grooves are provided on the outer periphery of the riveting part. The V-shaped tooth grooves and the V-shaped teeth are connected to prevent the stud from rotating in the horizontal direction around its own axis.

[0009] Furthermore, the riveting part has a notch, the notch including a horizontal top wall, a first inclined surface that is connected to the horizontal top wall at one end and can also be adapted to be connected to the inclined side wall, and a vertical surface that is adapted to be connected to the first vertical side wall, and the bottom surface of the V-shaped tooth is adjacent to the horizontal top wall.

[0010] Furthermore, the riveting protrusion includes a first vertical segment, an inclined segment, a second vertical segment, and a third vertical segment arranged sequentially from the bottom of the first riveting groove toward a direction away from the first riveting groove. The cross-sectional area of ​​the inclined segment gradually increases from the end connected to the first vertical segment to the other end. The outer diameter of the second vertical segment is smaller than the outer diameter of the third vertical segment, and the second vertical segment and the third vertical segment are perpendicularly connected to form an inverted L-shaped connection.

[0011] Furthermore, the riveting cavity includes an L-shaped support that matches the shape of the connecting part, a second inclined surface fixed to the L-shaped support at one end, and a second vertical sidewall fixed to the other end of the second inclined surface. The second inclined surface is adapted to the inclined segment, and the second vertical sidewall is adapted to the first vertical segment.

[0012] Furthermore, the connecting cavity is provided with internal threads.

[0013] In summary, the beneficial effects of this utility model are as follows: 1. The riveting groove does not penetrate the thin workpiece, thus preventing studs or stamping marks from being exposed on the surface after riveting, meeting the aesthetic requirements of products such as laptops. 2. Improved pull-out resistance: The inclined section of the riveting protrusion fits tightly with the second inclined surface of the riveting cavity, increasing the contact area and generating greater friction; the inverted L-shaped connecting part adapts to the L-shaped support, further enhancing connection stability. The interaction of each part disperses the tensile force, improving pull-out resistance. The connection between the riveting protrusion and the riveting cavity disperses the tensile force to more parts of the thin workpiece, reducing local stress concentration, enabling it to withstand greater tensile force and preventing damage. The notch of the riveting part and the corresponding protrusion of the thin workpiece form a mechanical interlocking structure, increasing the difficulty of stud removal. 3. Enhanced connection stability: The inclined sidewall of the first riveting groove exerts inward pressure on the riveting part, firmly fixing the riveting part in the riveting groove. The V-shaped groove of the second riveting groove meshes with the V-shaped teeth of the riveting part to prevent the stud from rotating horizontally around its own axis, ensuring positional stability and avoiding loosening of the connection or displacement of the parts. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a stud riveting structure provided by this utility model.

[0015] Figure 2 yes Figure 1 Front view of a medium-thin workpiece.

[0016] Figure 3 yes Figure 2 A three-dimensional structural diagram of the central riveting position.

[0017] Figure 4 yes Figure 1 Front view of the stud.

[0018] In the figure, 100-thin workpiece, 110-riveting position, 111-riveting groove, 1111-first riveting groove, 1111A-inclined sidewall, 1111B-first vertical sidewall, 1112-horizontal support surface, 1113-V-shaped toothed groove, 112-riveting protrusion, 112A-first vertical section, 112B-inclined section, 112C-second vertical section, 112D-third vertical section, 200-stud, 210-pillar, 211-connecting cavity, 220-riveting part, 221-V-shaped toothed part, 222-first inclined surface, 223-vertical surface, 224-horizontal top wall, 230-riveting cavity, 231-L-shaped support, 232-second inclined surface, 233-second vertical sidewall. Detailed Implementation

[0019] The present invention will be further illustrated below with reference to specific figures.

[0020] Please see Figure 1This utility model provides a stud riveting structure, including a thin workpiece 100 with a riveting position 110 and a stud 200 riveted to the riveting position 110. The riveting position 110 includes a riveting groove 111 located at the upper end of the thin workpiece 100 and a riveting protrusion 112 fixed in the middle of the riveting groove 111. The stud 200 includes a column 210 with a connecting cavity 211, a riveting portion 220 located at the lower end of the column 210 and connected to the riveting groove 111, and a riveting cavity 230 located in the riveting portion 220 and communicating with the connecting cavity 211 for engaging with the riveting protrusion 112. The riveting groove 111 does not penetrate the thin workpiece 100, therefore, after the riveting groove 111 and the riveting portion 220 are riveted, the stud or stamping marks can be avoided from being exposed on the appearance surface, thus meeting the aesthetic requirements of the laptop's exterior components. The riveting protrusion 112 in the middle of the riveting groove 111 connects to the riveting cavity 230 in the stud 200, which can disperse the tensile force acting on the stud 200 to a larger area. When the tensile force acts on the stud 200, it is no longer concentrated only on the contact surface between the riveting part 220 and the riveting groove 111, but is transmitted to more parts of the thin workpiece 100 through the riveting protrusion 112. This method of dispersing tensile force reduces the stress concentration in local areas, allowing the entire riveting structure to withstand greater tensile force without damage, effectively improving its pull-out resistance.

[0021] Please see Figure 2 and Figure 3 The riveting groove 111 includes a first riveting groove 1111 recessed in a direction away from the upper end face of the thin workpiece 100, and a second riveting groove adjacent to the upper end of the first riveting groove 1111 for positioning the riveting part 220. The first riveting groove 1111 includes an inclined sidewall 1111A with its upper end inclined towards the riveting protrusion 112, and a first vertical sidewall 1111B with one end connected to the lower end of the inclined sidewall 1111A and the other end connected to the bottom surface of the groove of the first riveting groove 1111. When the stud 200 is pressed and riveted, the inclined sidewall 1111A will generate an inward pressure on the riveting part 220, which helps to firmly fix the riveting part 220 in the riveting groove 111, further enhancing the connection stability between the stud 200 and the thin workpiece 100 and improving the tensile strength of the structure. One end of the first vertical sidewall 1111B is connected to the lower end of the inclined sidewall 1111A, and the other end is connected to the bottom surface of the first riveting groove 1111. This vertical sidewall configuration increases the structural strength of the riveting groove 111. When the stud 200 is subjected to tensile force, the vertical sidewall can bear part of the tensile force, dispersing the stress acting on the riveting structure and reducing the possibility of structural damage due to stress concentration. At the same time, the connection between the first vertical sidewall 1111B and the bottom surface of the groove also provides a stable support surface for the riveting part 220, making the riveting part 220 less prone to deformation or damage when subjected to tensile force, thereby improving the strength and reliability of the entire riveting structure.

[0022] Please continue reading. Figure 3 The second riveting groove is a stepped groove, comprising a horizontal support surface 1112 connected to the upper end of the inclined sidewall 1111A and a vertical positioning surface perpendicularly connected to the horizontal support surface 1112. Several V-shaped grooves 1113 connected end-to-end are formed on the vertical positioning surface. Several V-shaped teeth 221 adapted to the V-shaped grooves 1113 are provided on the outer periphery of the riveting part 220. The V-shaped grooves 1113 and the V-shaped teeth 221 are connected to prevent the stud 200 from rotating horizontally around its own axis. When the stud 200 is subjected to an external force attempting to rotate, the meshing between the V-shaped grooves 1113 and the V-shaped teeth 221 generates significant resistance, preventing the stud 200 from rotating and ensuring the positional stability of the stud 200 during use. This is particularly important for components requiring precise installation and fixation (such as some key components inside a laptop), avoiding problems such as loose connections or component misalignment caused by the rotation of the stud 200. In addition, this toothed structure can also disperse stress to a certain extent, reduce local stress concentration, improve the fatigue resistance of the riveted structure, and extend its service life.

[0023] The riveting part 220 has a notch, which includes a horizontal top wall 224, a first inclined surface 222 connected to the horizontal top wall 224 at one end and also adaptable to the inclined side wall 1111A, and a vertical surface 223 adapted to the first vertical side wall 1111B. The bottom surface of the V-shaped tooth 221 is adjacent to the horizontal top wall 224, and the horizontal top wall 224 is in contact with the horizontal support surface 1112. After riveting, the thin workpiece 100 forms a protrusion corresponding to the position of the notch. The protrusion is equivalent to being adapted and embedded in the notch, forming a mechanical interlocking structure. To make the stud 200 detach from the thin workpiece 100, it is necessary to overcome the mutual interlocking effect between the protrusion and the notch of the thin workpiece, thereby increasing the difficulty of pulling out the stud 200 and improving the pull-out resistance.

[0024] The riveting protrusion 112 includes a first vertical segment 112A, an inclined segment 112B, a second vertical segment 112C, and a third vertical segment 112D, arranged sequentially from the bottom of the first riveting groove 1111 towards a direction away from the first riveting groove 1111. The cross-sectional area of ​​the inclined segment 112B gradually increases from the end connected to the first vertical segment 112A to the other end. The outer diameter of the second vertical segment 112C is smaller than the outer diameter of the third vertical segment 112D, and the second vertical segment 112C and the third vertical segment 112D are perpendicularly connected to form an inverted L-shaped connection. Please refer to [link / reference]. Figure 4The riveting cavity 230 includes an L-shaped support 231 adapted to the shape of the connecting part, a second inclined surface 232 fixed to the L-shaped support 231 at one end, and a second vertical sidewall 233 fixed to the other end of the second inclined surface 232. The second inclined surface 232 is adapted to and connected to the inclined section 112B, and the second vertical sidewall 233 is adapted to and connected to the first vertical section 112A. The cross-sectional area of ​​the inclined section 112B of the riveting protrusion 112 gradually increases, adapting to and connecting with the second inclined surface 232 of the riveting cavity 230. This design allows the two to fit tightly together during the riveting process, increasing the contact area. According to the principle of friction, an increased contact area generates greater friction, thereby improving the firmness of the connection between the stud 200 and the thin workpiece 100. Meanwhile, the inverted L-shaped connecting portions (second vertical section 112C and third vertical section 112D) of the riveting protrusion 112 are adapted to the L-shaped support 231 of the riveting cavity 230, further enhancing the stability of the connection and making it less likely for the stud 200 to come out of the riveting groove 111 when subjected to external force. When the stud 200 is subjected to tension, the various parts of the riveting protrusion 112 interact with the corresponding parts of the riveting cavity 230, dispersing the tension. For example, the first vertical section 112A is adapted to the second vertical sidewall 233 and can withstand a portion of the tension; the cooperation between the inclined section 112B and the second inclined surface 232 can transfer the tension to a larger area, reducing local stress concentration; the connection between the inverted L-shaped connecting portion and the L-shaped support 231 provides additional support in the vertical direction, effectively improving the pull-out resistance of the entire riveting structure and ensuring the reliability of the connection between the stud 200 and the thin workpiece 100. This structural design allows for a more even distribution of stress between the riveting protrusion 112 and the riveting cavity 230. Because the shapes and dimensions of each part are mutually compatible, stress does not concentrate at a single point or area under load, but is instead dispersed throughout the entire connection structure through the synergistic effect of the parts. This reduces the risk of structural damage due to stress concentration and improves the durability and service life of the riveted structure.

[0025] The connecting cavity 211 has an internal thread, which can be engaged with a connecting part with an external thread (such as a bolt or screw). The friction generated by the helix angle of the thread can firmly connect two or more parts together, ensuring the tightness and stability of the connection. This makes the connection less likely to loosen or fall off when subjected to certain tensile, compressive, or vibration loads.

[0026] This stud riveting structure offers several advantages: 1. The riveting groove 111 does not penetrate the thin workpiece 100, preventing the stud 200 or stamping marks from being exposed on the surface after riveting, thus meeting the aesthetic requirements of products like laptops. 2. Improved pull-out resistance: The inclined section 112B of the riveting protrusion 112 closely fits the second inclined surface 232 of the riveting cavity 230, increasing the contact area and generating greater friction. The inverted L-shaped connecting part adapts to the L-shaped support 231, further enhancing connection stability. The interaction of these parts disperses tensile force, improving pull-out resistance. The connection between the riveting protrusion 112 and the riveting cavity 230 disperses tensile force to more parts of the thin workpiece 100, reducing local stress concentration, enabling it to withstand greater tensile force and reducing the risk of damage. The notch of the riveting part 220 forms a mechanical interlocking structure with the corresponding protrusion of the thin workpiece 100, increasing the difficulty of pulling out the stud 200. 3. Enhanced connection stability: The inclined sidewall 1111A of the first riveting groove 1111 exerts inward pressure on the riveting part 220, firmly fixing the riveting part 220 within the riveting groove 111. The V-shaped toothed groove 1113 of the second riveting groove meshes with the V-shaped toothed part 221 of the riveting part 220, preventing the stud 200 from rotating horizontally around its own axis, ensuring positional stability, and preventing loosening of the connection or displacement of components.

[0027] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. A stud riveted structure, characterized by: The device includes a thin workpiece with a riveting position and a stud riveted to the riveting position. The riveting position includes a riveting groove at the upper end of the thin workpiece and a riveting protrusion fixed in the middle of the riveting groove. The stud includes a column with a connecting cavity, a riveting part at the lower end of the column and connected to the riveting groove, and a riveting cavity in the riveting part and communicating with the connecting cavity for engaging with the riveting protrusion.

2. The stud riveting structure according to claim 1, characterized by: The riveting groove includes a first riveting groove recessed in a direction away from the upper end face of the thin workpiece and a second riveting groove adjacent to the upper end of the first riveting groove for positioning the riveting part. The first riveting groove includes an inclined sidewall with its upper end inclined toward the riveting protrusion and a first vertical sidewall with one end connected to the lower end of the inclined sidewall and the other end connected to the bottom surface of the first riveting groove.

3. The stud riveting structure according to claim 2, characterized by: The second riveting groove is a stepped groove. The second riveting groove includes a horizontal support surface connected to the upper end of the inclined sidewall and a vertical positioning surface connected to the horizontal support surface. A plurality of V-shaped tooth grooves connected end to end are provided on the vertical positioning surface. A plurality of V-shaped teeth adapted to the V-shaped tooth grooves are provided on the outer periphery of the riveting part. The V-shaped tooth grooves and the V-shaped teeth are connected to prevent the stud from rotating in the horizontal direction around its own axis.

4. The stud riveting structure according to claim 3, characterized by: The riveting part has a notch, which includes a horizontal top wall, a first inclined surface that is connected to the horizontal top wall at one end and can also be adapted to be connected to an inclined side wall, and a vertical surface that is adapted to be connected to the first vertical side wall. The bottom surface of the V-shaped tooth is adjacent to the horizontal top wall.

5. The stud riveting structure according to claim 2, characterized by: The riveting protrusion includes a first vertical segment, an inclined segment, a second vertical segment, and a third vertical segment arranged sequentially from the bottom of the first riveting groove toward a direction away from the first riveting groove. The cross-sectional area of ​​the inclined segment gradually increases from the end connected to the first vertical segment to the other end. The outer diameter of the second vertical segment is smaller than the outer diameter of the third vertical segment, and the second vertical segment and the third vertical segment are perpendicularly connected to form an inverted L-shaped connection.

6. The stud riveting structure according to claim 5, characterized by: The riveting cavity includes an L-shaped support that matches the shape of the connecting part, a second inclined surface fixed to the L-shaped support at one end, and a second vertical sidewall fixed to the other end of the second inclined surface. The second inclined surface is adapted to the inclined segment, and the second vertical sidewall is adapted to the first vertical segment.

7. The stud riveted structure according to any one of claims 1 to 6, characterized in that: The connecting cavity has internal threads.

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