Rivet structure

Abstract

The utility model relates to a blind rivet structure which comprises a pull rod, the pull rod comprises a rod body and an impact head, the impact head comprises an impact part, a positioning part and a connecting part which are sequentially connected, a positioning groove is formed in the end, connected with the connecting part, of the positioning part, and the connecting part is connected with the rod body. A pre-breaking groove is formed in the side wall of the end, connected with the connecting portion, of the rod body, the blind rivet structure further comprises a hollow sleeve, one end of the sleeve extends outwards in the radial direction to form a blocking piece, an annular protruding ring is arranged on the inner side wall of the sleeve, and after an impact head of the pull rod deforms the upper edge of the sleeve, the blocking piece is clamped in the annular protruding ring. The rod body and the impact head are broken at the position of the pre-breaking groove when the rod body is pulled continuously, and the impact head is clamped in the sleeve through the positioning groove, so that the impact head is prevented from falling into a component or outside two plates, and the project and time for recovering broken objects such as the falling head are saved.

Description

Technical Field

[0001] This utility model relates to the field of rivets, and more specifically, to a rivet structure. Background Technology

[0002] There are many ways to join boards together, the most common being welding, screw fastening, gluing, or rivet fixing. Among them, rivets are installed in a nail gun and used to rivet two boards together. The nail gun is used to pierce the two boards first, and then the rod of the rivet is pulled out, which deforms the sleeve of the rivet to rivet the two boards together, thus making the two boards firmly joined together.

[0003] However, when using rivets to fix two plates, the impact head of the rivet structure impacts the sleeve, causing the upper edge of the sleeve to deform, thus completing the rivet connection. After the upper edge of the sleeve is deformed, if the rod is pulled further, the impact head will break, allowing the rod to be removed. The impact head will fall inside the component or outside the two plates, requiring extra manpower and time to retrieve it, causing additional trouble and waste. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, a zipper structure is provided.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a pull rivet structure, including a pull rod, the pull rod including a rod body and an impact head, the impact head including an impact part, a positioning part and a connecting part connected in sequence, a positioning groove is provided at one end of the positioning part and the connecting part, the connecting part is connected to the rod body, a pre-cutting groove is provided on the side wall of the end of the rod body connected to the connecting part, the pull rivet structure also includes a hollow sleeve, a baffle extending radially outward at one end of the sleeve, an annular convex ring is provided on the inner side wall of the sleeve, the convex ring is inserted into the positioning groove after the sleeve is deformed.

[0006] Preferably, the impact part is a cylindrical structure, and the end of the impact part connected to the positioning part is provided with an impact chamfer to guide the deformation of the sleeve. The positioning part and the connecting part are also cylindrical structures.

[0007] Preferably, the diameters of the impact portion, the positioning portion, and the connecting portion decrease sequentially, and the inner diameter of the convex ring is not less than the diameter of the connecting portion.

[0008] Preferably, the positioning part has a chamfer at the end connected to the connecting part, and the connecting part has a chamfer at the end connected to the positioning part. The chamfer of the positioning part and the chamfer of the connecting part together form a positioning groove with a triangular cross-section.

[0009] Preferably, an annular groove is provided on the outer wall of the sleeve, and the annular groove is concentric with the convex ring.

[0010] Preferably, the connection between the baffle and the outer wall of the sleeve is a chamfered structure, with one end of the chamfered structure extending to the edge of the baffle.

[0011] Preferably, the depth of the pre-break groove is greater than the depth of the positioning groove.

[0012] The beneficial effects of this utility model are as follows: When using this pull stud to fix two plates, after the impact head of the pull rod deforms the upper edge of the sleeve, the deformation of the inner wall of the sleeve and the protruding ring are inserted into the positioning groove. Then, the rod body is pulled, and the rod body and the impact head break at the pre-break groove position, thereby pulling out the rod body. The impact head is then stuck in the sleeve through the positioning groove, thus preventing the impact head from falling into the component or outside the two plates, saving the project and time of recovering the fallen head and other broken objects. At the same time, the impact head fills the inner wall of the sleeve, preventing the sleeve from continuing to deform inward and causing a gap between the sleeve and the two sheet materials, thereby making the two plates fixed by this pull stud more secure. Attached Figure Description

[0013] Figure 1 This is a schematic cross-sectional view of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the overall cross-sectional structure after riveting according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the overall external structure of an embodiment of this utility model.

[0016] Reference numerals: 1 rod body, 2 impact head, 20 impact part, 200 impact chamfer, 21 positioning part, 22 connecting part, 3 positioning groove, 30 positioning part chamfer, 31 connecting part chamfer, 4 pre-break groove, 5 sleeve, 50 annular groove, 6 baffle, 60 chamfered structure, 7 convex ring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In addition, the directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. The directional terms are used to better and more clearly explain and understand this utility model, and are not intended to indicate or imply the necessary orientation of this utility model. Therefore, they should not be construed as limitations on this utility model.

[0018] Examples of embodiments of this utility model Figures 1 to 3 As shown, a pull stud structure includes a pull rod, which includes a rod body 1 and an impact head 2. The impact head 2 includes an impact part 20, a positioning part 21, and a connecting part 22 connected in sequence from top to bottom. A positioning groove 3 is provided at the end where the positioning part 21 and the connecting part 22 are connected. The connecting part 22 is connected to the rod body 1, and the rod body 1 is connected to the bottom end of the connecting part 22. A pre-break groove 4 is provided on the side wall of the end where the rod body 1 is connected to the connecting part 22. The pre-break groove 4 connects the rod body 1 and the connecting part 22. The force is sufficient to withstand the deformation of the upper edge of the sleeve 5 caused by the impact head 2. The rivet structure also includes a hollow sleeve 5, which is a cylindrical structure. One end of the sleeve 5 extends radially outward with a baffle 6. After the upper edge of the sleeve 5 is deformed, it works with the baffle 6 to fix the two plates. An annular protruding ring 7 is provided on the inner side wall of the sleeve 5. The protruding ring 7 is integrally formed with the sleeve 5. After the sleeve 5 is deformed, the protruding ring 7 is inserted into the positioning groove 3. The protruding ring 7 fills the positioning groove 3 after the sleeve 5 is deformed, which makes the sleeve 5 more firmly connected to the impact head 2 through the positioning groove 3 and the protruding ring 7.

[0019] When using this rivet to fix two plates, after the impact head 2 of the rivet deforms the upper edge of the sleeve 5, the deformation of the inner wall of the sleeve 5 and the protruding ring 7 are engaged in the positioning groove 3. Then, the rod body 1 is pulled, and the rod body 1 and the impact head 2 break at the position of the pre-break groove 4, thereby pulling out the rod body 1. The impact head 2 is then engaged in the sleeve 5 through the positioning groove 3, thus preventing the impact head 2 from falling into the component or outside the two plates, saving the work and time of recovering the broken head and other broken parts. At the same time, the impact head 2 fills the inner wall of the sleeve 5, preventing the sleeve 5 from continuing to deform inward and causing a gap between the sleeve 5 and the two sheet materials, thus making the two plates fixed by this rivet more secure.

[0020] Further improvements, such as Figure 1 and Figure 2 As shown, the impact part 20 has a cylindrical structure. One end of the impact part 20 connected to the positioning part 21 is provided with an impact chamfer 200 to guide the deformation of the sleeve 5. The positioning part 21 and the connecting part 22 are also cylindrical structures. The impact chamfer 200 guides the deformation shape of the sleeve, thereby fixing the two plates.

[0021] Further improvements, such as Figure 1 and Figure 2 As shown, the diameters of the impact part 20, the positioning part 21, and the connecting part 22 decrease sequentially, so that the positioning part 21 and the connecting part 22 do not affect the impact part 21 in deforming the sleeve. The inner diameter of the convex ring 7 is not less than the diameter of the connecting part 22, thereby avoiding affecting the connecting part 22 passing through the convex ring 7.

[0022] Further improvements, such as Figure 1 and Figure 2 As shown, the positioning part 21 has a positioning chamfer 30 at the end connected to the connecting part 22, and the connecting part 22 has a connecting chamfer 31 at the end connected to the positioning part 21. The positioning chamfer 30 and the connecting chamfer 31 form a positioning groove 3 with a triangular cross-section, and the positioning groove 3 is also a ring structure.

[0023] Further improvements, such as Figure 1 and Figure 2 As shown, an annular groove 50 is provided on the outer wall of the sleeve 5. The annular groove 50 is concentric with the convex ring 7. The annular groove 50 makes it easier for the inner wall of the sleeve 5 at the location of the convex ring 7 to deform, so that the inner wall of the sleeve 5 and the convex ring 7 fill the positioning groove 3, and complete the snap-fit ​​between the sleeve 5 and the impact head 20.

[0024] Further improvements, such as Figure 1 and Figure 2 As shown, the depth of the pre-break groove 4 is greater than the depth of the positioning groove 3, which makes the connection strength of the pre-break groove 4 lower. The pre-break groove 4 will break first, avoiding the positioning groove 3 from breaking and causing the impact head 2 to fall out of the sleeve 5.

[0025] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A rivet structure, comprising a tie rod, characterized in that, The pull rod includes a rod body and an impact head; the impact head includes an impact part, a positioning part, and a connecting part connected in sequence; a positioning groove is provided at the end where the positioning part and the connecting part are connected; the connecting part is connected to the rod body; a pre-break groove is provided on the side wall of the end where the rod body is connected to the connecting part; the pull rod structure also includes a hollow sleeve; a baffle extends radially outward from one end of the sleeve; an annular convex ring is provided on the inner side wall of the sleeve, and the convex ring is engaged in the positioning groove after the sleeve is deformed.

2. The rivet structure according to claim 1, characterized in that, The impact part is a cylindrical structure; the end of the impact part connected to the positioning part is provided with an impact chamfer to guide the deformation of the sleeve; the positioning part and the connecting part are also cylindrical structures.

3. The rivet structure according to claim 2, characterized in that, The diameters of the impact part, the positioning part, and the connecting part decrease sequentially; the inner diameter of the convex ring is not less than the diameter of the connecting part.

4. The rivet structure according to claim 1, characterized in that, The positioning part has a chamfer at the end connected to the connecting part; the connecting part has a chamfer at the end connected to the positioning part; the chamfer of the positioning part and the chamfer of the connecting part form a positioning groove with a triangular cross-section.

5. A rivet structure according to claim 1, characterized in that, An annular groove is provided on the outer wall of the sleeve; the annular groove is concentric with the convex ring.

6. The rivet structure according to claim 1, characterized in that, The connection between the baffle and the outer wall of the sleeve is a chamfered structure; one end of the chamfered structure extends to the edge of the baffle.

7. A rivet structure according to claim 1, characterized in that, The depth of the pre-break groove is greater than the depth of the positioning groove.

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