Stably assembled garland rivet

Abstract

The utility model relates to the technical field of rivets, in particular to a garland rivet stable in assembly. A garland rivet stable in assembly comprises a rivet core and a rivet shell, the rivet core comprises a rivet core body, a snapping section, a riveting section and a rivet head, the snapping section is connected between the rivet core body and the riveting section, the rivet head is connected to the end, away from the rivet core body, of the riveting section, and the rivet core body is connected with the rivet shell. A plurality of blooming edges are uniformly distributed on the nail head along the circumferential direction at intervals; first annular protruding lines and vertical teeth are arranged on the peripheral face of the rivet core body, and the first annular protruding lines are arranged around the peripheral face of the rivet core body. According to the stably-assembled garland rivet, the assembling stability of the rivet core and the rivet shell can be effectively improved, the rivet shell is evenly bloomed, the stability of a riveted structure after riveting is improved, and the riveted structure after riveting is more attractive; the garland rivet solves the problems that when an existing garland rivet is assembled, a rivet core and a rivet shell are easy to separate and fall off, the assembling stability of the rivet core and the rivet shell is poor, and the blooming uniformity is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of rivets, in particular to a stably assembled pattern rivet. Background Art

[0002] Rivets are a type of fastener, and they are one of the important basic parts of various types of mechanical equipment. As a branch of rivets, pattern rivets have unique uses and characteristics. Pattern rivets are suitable for decorative fixation and connection inside closed spaces, and are widely used in decoration, packaging, advertising and other industries. After riveting, the pattern rivet's nail core will pull the end of the nail shell into a petal shape, thereby clamping the two riveted workpieces without crushing the surface of the workpiece. This design not only ensures the firmness of the connection, but also increases the aesthetics of the product. Existing pattern rivets mainly focus on the tightness of the connection between the nail core and the nail shell after riveting, but ignore the stability during assembly. During assembly, the nail shell and the nail core are easy to separate and fall off, and the assembly stability of the nail core and the nail shell is poor, and the uniformity of flowering is poor. Utility Model Content

[0003] In view of the problems raised by the background technology, the purpose of the utility model is to propose a stably assembled rivet, which can effectively improve the assembly stability of the nail core and the nail shell, make the nail shell bloom evenly, improve the stability of the riveted structure after riveting, and make the riveted structure more beautiful after riveting, thereby solving the problems of the existing rivet that the nail core and the nail shell are easy to separate and fall off during assembly, the assembly stability of the nail core and the nail shell is poor, and the blooming uniformity is poor.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A stably assembled flower rivet, comprising a nail core and a nail shell, wherein the nail core comprises a nail core body, a breaking section, a riveting section and a nail head, wherein the breaking section is connected between the nail core body and the riveting section, the nail head is connected to the end of the riveting section away from the nail core body, and the nail head has a plurality of flower ridges evenly distributed along the circumferential direction;

[0006] The outer circumference of the nail core body is provided with a first annular convex pattern and vertical teeth, the first annular convex pattern is arranged around the outer circumference of the nail core body, and the first annular convex pattern is distributed at intervals along the length direction of the nail core body; the vertical teeth are arranged along the length direction of the nail core body, and the vertical teeth are distributed at intervals along the circumference of the nail core body; the first annular convex pattern is arranged at one end of the nail core body away from the nail head;

[0007] The outer circumferential surface of the riveted section is provided with a second annular convex pattern, the second annular convex pattern is arranged around the outer circumferential surface of the riveted section, and the second annular convex pattern is distributed at intervals along the length direction of the riveted section;

[0008] A through hole for the nail core to pass through is formed inside the nail shell. When the nail core is assembled with the nail shell, the vertical teeth abut against the inner wall of the nail shell.

[0009] Further description, a transition surface is provided between two adjacent flower-shaped edges, the transition surface is an arc surface, and the flower-shaped edge is in the shape of a sharp angle protruding toward the direction of the nail core body.

[0010] To further explain, there are three flowering ridges, and the angle A between two adjacent flowering ridges is 120°.

[0011] Further, the nail shell includes a nail shell body and a nail cap, the nail cap is connected to the end of the nail shell body, the nail cap is bowl-shaped, and the nail cap is provided with an abutment surface, and the abutment surface is used to abut against the surface of the workpiece to be fixed;

[0012] When the nail core is assembled with the nail shell, the abutting surface is arranged toward the nail head.

[0013] Further, the through hole includes a first inner hole and a second inner hole that are connected to each other, the second inner hole is arranged close to the nail cap, and the diameter of the first inner hole is larger than the diameter of the second inner hole;

[0014] When the nail core and the nail shell are riveted together, the second annular convex pattern is interference-fitted with the wall surface of the second inner hole.

[0015] To further explain, an annular groove is provided between two adjacent second annular convex patterns.

[0016] Further explained, the nail shell body is cylindrical.

[0017] Further, the through hole is arranged through the nail shell body, and the through hole extends to the interior of the nail cap;

[0018] A countersunk hole is further provided at one end of the nail cap away from the nail head, and the countersunk hole is communicated with the through hole.

[0019] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0020] 1. By arranging vertical teeth on the nail core body, the vertical teeth can increase the diameter of the nail core body. When the nail core is passed through the nail shell for assembly, the vertical teeth can abut against the inner wall of the nail shell, so that the nail shell and the nail core are tightly combined, avoiding the separation and falling of the nail shell and the nail core in the assembled state, effectively improving the assembly stability of the nail core and the nail shell, and then making the cutting stability of the flower ridge high when cutting the nail shell, ensuring the cutting effect.

[0021] 2. By coordinating multiple evenly distributed blooming edges, the blooming edges can make the nail shell bloom evenly during cutting, thereby improving the stability of the riveted structure after riveting and making the riveted structure more beautiful after riveting.

[0022] 3. By setting the second annular convex pattern on the riveting section, the diameter of the riveting section can be increased, so that the nail core can be stuck in the nail shell after riveting and will not fall off, effectively increasing the shear resistance of the rivet after riveting. By setting the first annular convex pattern on the nail core, it is convenient for the nail core to engage with the gripping part of the riveting tool, avoiding sliding during riveting, improving work efficiency, and further ensuring the uniformity of riveting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a nail core of a stably assembled rivet according to an embodiment of the utility model.

[0024] Figure 2 It is a structural schematic diagram of a nail core of a stably assembled rivet according to an embodiment of the utility model.

[0025] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at B.

[0026] Figure 4 It is a bottom view of a mandrel of a stably assembled rivet according to an embodiment of the utility model.

[0027] Figure 5 It is a cross-sectional view of a nail shell of a stably assembled rivet according to an embodiment of the utility model.

[0028] Figure 6 It is a structural schematic diagram of a stably assembled rivet according to an embodiment of the utility model (when the rivet core and the rivet shell are assembled).

[0029] Figure 7 It is a structural schematic diagram of an embodiment of the utility model in which an assembled rivet is passed through preset holes of two workpieces to be fixed.

[0030] Figure 8 It is a partial cross-sectional view of the blooming process of a stably assembled flower rivet according to an embodiment of the utility model.

[0031] Fig. 9 It is a partial cross-sectional view of a completed riveting of a stably assembled pattern rivet according to an embodiment of the utility model.

[0032] Fig.10 It is a top view of a stable assembled pattern rivet after riveting is completed in one embodiment of the utility model.

[0033] Among them: nail core 1, nail core body 11, first annular convex pattern 111, vertical teeth 112, breaking section 12, riveting section 13, second annular convex pattern 131, annular groove 132, nail head 14, flower ridge 141, transition surface 142, nail shell 2, through hole 21, first inner hole 211, second inner hole 212, nail shell body 22, nail cap 23, abutment surface 231, countersunk hole 232, workpiece 10. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0036] like Figures 1 to 5 As shown, a stably assembled flower rivet comprises a nail core 1 and a nail shell 2, wherein the nail core 1 comprises a nail core body 11, a breaking section 12, a riveting section 13 and a nail head 14, wherein the breaking section 12 is connected between the nail core body 11 and the riveting section 13, and the nail head 14 is connected to the end of the riveting section 13 away from the nail core body 11, and the nail head 14 has a plurality of flower ridges 141 evenly distributed along the circumferential direction;

[0037] The outer circumference of the nail core body 11 is provided with a first annular convex pattern 111 and a vertical tooth 112. The first annular convex pattern 111 is arranged around the outer circumference of the nail core body 11, and the first annular convex pattern 111 is spaced along the length direction of the nail core body 11; the vertical teeth 112 are arranged along the length direction of the nail core body 11, and the vertical teeth 112 are spaced along the circumference of the nail core body 11; the first annular convex pattern 111 is arranged at the end of the nail core body 11 away from the nail head 14;

[0038] The outer circumference of the riveted section 13 is provided with a second annular convex pattern 131, the second annular convex pattern 131 is arranged around the outer circumference of the riveted section 13, and the second annular convex pattern 131 is distributed at intervals along the length direction of the riveted section 13;

[0039] The nail shell 2 is provided with a through hole 21 for the nail core 1 to pass through. When the nail core 1 is assembled with the nail shell 2 , the vertical teeth 112 abut against the inner wall of the nail shell 2 .

[0040] When using the assembled stable pattern rivet, the nail core 1 is passed through the through hole of the nail shell 2 to complete the assembly of the nail core 1 and the nail shell 2, and then the assembled pattern rivet is passed through the preset holes of two workpieces 10 to be fixed, and riveting is performed by a riveting tool such as a nail gun. During the riveting process, the flower edge 141 cuts the nail shell 2, and the structure on the upper part of the nail shell 2 is cut into a petal shape to complete the riveting.

[0041] like Figure 6 As shown, the nail core 1 is passed through the through hole of the nail shell 2 to complete the assembly of the nail core 1 and the nail shell 2; Figure 7 As shown, the assembled rivet is passed through the preset holes of the two workpieces 10 to be fixed, and the rivet is installed into the workpiece 10. Figure 8 As shown, under the action of the riveting tool, the nail core 1 moves toward the nail shell 2, and under the cutting action of the flower edge, the end area of ​​the nail shell 2 flowers. Fig. 9 and Fig.10 As shown, the breaking section of the nail core 1 has been broken, the nail core body 11 has been broken and detached, and the nail shell 2 has completed opening and abutted against the surface of the workpiece 10, thereby completing the fixation of the two workpieces 10.

[0042] It is worth noting that in the present assembly-stable flower rivet, by providing the vertical teeth 112 on the nail core body 11, the vertical teeth 112 can increase the diameter of the nail core body 11. When the nail core 1 is passed through the nail shell 2 for assembly, the vertical teeth 112 can abut against the inner wall of the nail shell 2, so that the nail shell 2 and the nail core 1 are tightly combined, avoiding the separation and fall-off of the nail shell 2 and the nail core 1 in the assembled state, effectively improving the assembly stability of the nail core 1 and the nail shell 2, and thus making the cutting stability of the flower ridge 141 high when cutting the nail shell 2, ensuring the cutting effect. In addition, by cooperating with a plurality of evenly distributed flower ridges 141, the flower ridge 141 can make the nail shell 2 evenly flower when cutting, improving the stability of the riveted structure after riveting, and making the riveted structure more beautiful after riveting.

[0043] Further, by providing the second annular convex pattern 131 on the riveting section 13, the diameter of the riveting section 13 can be increased, so that the nail core 1 will not fall off after riveting, and the shear resistance of the rivet after riveting is effectively increased. By providing the first annular convex pattern 111 on the nail core 1, it is convenient for the nail core 1 to mesh with the gripping part of the riveting tool, avoiding sliding during riveting, improving work efficiency, and further ensuring the uniformity of riveting.

[0044] The stably assembled pattern rivet can effectively improve the assembly stability of the nail core 1 and the nail shell 2, and cooperate with the evenly distributed multiple pattern ridges 141 to make the nail shell 2 evenly patterned, thereby improving the stability of the riveted structure after riveting, making the riveted structure more beautiful after riveting, and solving the problems of the existing pattern rivet that the nail core 1 and the nail shell 2 are easy to separate and fall off during assembly, the nail core 1 and the nail shell 2 have poor assembly stability, and poor pattern uniformity.

[0045] To further explain, a transition surface 142 is disposed between two adjacent opening edges 141 , and the transition surface 142 is an arc surface. The opening edges 141 are in a sharp angle shape protruding toward the nail core body 11 .

[0046] By providing the transition surface 142 between two adjacent opening edges 141, and the transition surface 142 is a curved surface, when the opening edge 141 contacts the nail shell 2 and cuts the nail shell 2, the transition surface 142 can adapt to the curvature of the nail shell 2 when opening. Figure 8 As shown, when the nail core 1 moves toward the nail shell 2, the flowering ridge 141 cuts the nail shell 2, and the transition surface 142 contacts the "petal" position of the flowering, and can adapt to the curvature of the "petal", avoiding the collision between the nail head 14 and the "petal" position of the nail shell 2 during the flowering process, ensuring the stability of the riveted structure, and the structure obtained by flowering is more beautiful. In addition, the flowering ridge 141 is sharp, ensuring the cutting effect of the flowering ridge 141 on the nail shell 2.

[0047] Specifically, three flowering ridges 141 are provided, and the included angle A between two adjacent flowering ridges 141 is 120°.

[0048] By setting the included angle A between two adjacent flower-opening edges 141 to 120°, the flower-opening petals of the nail shell 2 are made uniform during riveting, thereby ensuring the performance and appearance of the product after riveting.

[0049] Preferably, the nail core 2 is processed by a cold heading machine, and the obtained product has good mechanical properties and can effectively ensure the accuracy of the product. The breaking section 12 is formed by thread rolling to ensure that the breaking force of the nail core 1 is balanced and consistent and the breaking position is consistent, thereby improving the quality of the rivet.

[0050] Further, the nail shell 2 includes a nail shell body 22 and a nail cap 23, the nail cap 23 is connected to the end of the nail shell body 22, the nail cap 23 is bowl-shaped, and the nail cap 23 is provided with an abutment surface 231, and the abutment surface 231 is used to abut against the surface of the workpiece 10 to be fixed;

[0051] When the nail core 1 is assembled with the nail shell 2 , the abutting surface 231 is disposed toward the nail head 14 .

[0052] By arranging the nail shell body 22 and the nail cap 23 in the nail shell 2, the nail shell body 22 is used to be inserted into the preset hole of the workpiece 10 to be fixed. Since the abutting surface 231 abuts against the surface of the workpiece 10 to be fixed, when the riveting is completed, the abutting surface 231 is tightly combined with the surface of the workpiece 10, effectively ensuring the stability of the riveting structure.

[0053] Preferably, the nail shell 2 is made of high aluminum-magnesium alloy (in compliance with the provisions of GB / T 3190-2008 standard for 5056 alloy), so that the rivet has higher tensile and shear resistance and can bear a larger load.

[0054] Further, the through hole 21 includes a first inner hole 211 and a second inner hole 212 which are connected to each other. The second inner hole 212 is arranged close to the nail cap 23. The diameter of the first inner hole 211 is larger than the diameter of the second inner hole 212.

[0055] When the nail core 1 and the nail shell 2 are riveted together, the second annular convex pattern 131 and the wall surface of the second inner hole 212 are interference fit.

[0056] By designing the nail shell 2 to have a stepped inner hole with different diameters, the second inner hole 212 can form an interference fit with the nail core 1. After riveting, the nail core 1 of the rivet is stuck in the nail shell 2 and will not fall off, thereby avoiding abnormal noise in the workpiece 10 (or equipment).

[0057] To further explain, an annular groove 132 is disposed between two adjacent second annular convex patterns 131 .

[0058] Since the annular groove 132 is provided between two adjacent second annular convex patterns 131, during the riveting process, the nail core 1 squeezes the second inner hole 212 of the nail shell 2, which is more conducive to the material of the nail shell 2 being embedded in the annular groove 132, further improving the tightness of the connection between the nail core 1 and the nail shell 2, and ensuring that the nail core 1 is stuck in the nail shell 2 and will not fall off after riveting.

[0059] Specifically, the nail shell body 22 is cylindrical.

[0060] By setting the shape of the nail shell body 22 to be cylindrical, it is convenient to insert the nail shell 2 into the preset hole of the workpiece 10 to be fixed, thereby effectively improving the assembly efficiency of the nail shell 2 and the nail core 1 and the overall efficiency of the riveting process.

[0061] Further, the through hole 21 is set through the nail shell body 22, and the through hole 21 extends to the inside of the nail cap 23;

[0062] A countersunk hole 232 is further formed at one end of the nail cap 23 away from the nail head 14 , and the countersunk hole 232 is communicated with the through hole 21 .

[0063] The through hole 21 is provided through the nail shell body 22 , and the countersunk hole 232 is provided in the nail cap 23 , so as to facilitate the insertion of the nail core 1 .

[0064] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A stably assembled rivet, characterized in that: The nail core comprises a nail core and a nail shell, wherein the nail core comprises a nail core body, a breaking section, a riveting section and a nail head, wherein the breaking section is connected between the nail core body and the riveting section, the nail head is connected to the end of the riveting section away from the nail core body, and the nail head has a plurality of flower ridges evenly distributed along the circumferential direction; The outer circumference of the nail core body is provided with a first annular convex pattern and vertical teeth, the first annular convex pattern is arranged around the outer circumference of the nail core body, and the first annular convex pattern is distributed at intervals along the length direction of the nail core body; the vertical teeth are arranged along the length direction of the nail core body, and the vertical teeth are distributed at intervals along the circumference of the nail core body; the first annular convex pattern is arranged at one end of the nail core body away from the nail head; The outer circumferential surface of the riveted section is provided with a second annular convex pattern, the second annular convex pattern is arranged around the outer circumferential surface of the riveted section, and the second annular convex pattern is distributed at intervals along the length direction of the riveted section; A through hole for the nail core to pass through is formed in the nail shell. When the nail core is assembled with the nail shell, the vertical teeth abut against the inner wall of the nail shell.

2. The assembly-stable pattern rivet according to claim 1, characterized in that: A transition surface is provided between two adjacent flower-shaped edges, and the transition surface is an arc surface. The flower-shaped edges are in the shape of sharp corners protruding toward the direction of the nail core body.

3. The assembly-stable pattern rivet according to claim 1, characterized in that: There are three flowering ridges, and the angle A between two adjacent flowering ridges is 120°.

4. The assembly-stable pattern rivet according to claim 1, characterized in that: The nail shell includes a nail shell body and a nail cap, wherein the nail cap is connected to the end of the nail shell body, the nail cap is bowl-shaped, and the nail cap is provided with an abutment surface, and the abutment surface is used to abut against the surface of the workpiece to be fixed; When the nail core is assembled with the nail shell, the abutting surface is arranged toward the nail head.

5. The assembly-stable pattern rivet according to claim 4, characterized in that: The through hole comprises a first inner hole and a second inner hole which are connected to each other, the second inner hole is arranged close to the nail cap, and the diameter of the first inner hole is larger than the diameter of the second inner hole; When the nail core and the nail shell are riveted together, the second annular convex pattern is interference-fitted with the wall surface of the second inner hole.

6. The assembly-stable pattern rivet according to claim 5, characterized in that: An annular groove is provided between two adjacent second annular convex patterns.

7. The assembly-stable pattern rivet according to claim 4, characterized in that: The nail shell body is cylindrical.

8. The assembly-stable pattern rivet according to claim 4, characterized in that: The through hole is arranged through the nail shell body, and the through hole extends to the interior of the nail cap; A countersunk hole is further provided at one end of the nail cap away from the nail head, and the countersunk hole is communicated with the through hole.

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