High strength closed double-drum rivet

Abstract

The utility model discloses a high -strength closed double -drum rivet, including rivet, the rivet outside is equipped with four groups of intercommunication groove, the intercommunication groove inside slidingly connected has the enclosure board, the enclosure board inside is equipped with the recess, the intercommunication groove inside rotationally connected has the rotation axis, the rotation axis outside fixedly connected with the rotation board, the rotation board and intercommunication groove between fixedly connected with torsional spring, the torsional spring is equipped with in the rotation axis outside, thereby increases rivet and the adhesion of mounting hole inner wall, avoids rivet to shake, can effectively restrain the radial shaking after rivet installation, reduces the wear and tear and the fatigue risk of connecting portion.

Description

Technical Field

[0001] This utility model relates to the field of rivet technology, specifically a high-strength closed double-drum rivet. Background Technology

[0002] Rivets are a common mechanical connection component, widely used in scenarios requiring rapid assembly and high-strength fixation.

[0003] In existing technologies, traditional closed rivets are mostly connected by single or double drum deformation, but the connection strength is insufficient. They rely solely on the compressive force of the drum deformation, and are prone to loosening under vibration, impact and other working conditions. They are particularly unstable in the connection of thick plates or high-strength materials. They also have weak anti-shaking performance. After the rivet is installed, it is prone to radial shaking due to external force or its own deformation rebound, which leads to wear or fatigue fracture of the connection part.

[0004] Therefore, there is an urgent need for a high-strength closed double-drum rivet that can simultaneously improve strength, anti-shake performance, and be easy to install, in order to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength closed double-drum rivet to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength closed double-drum rivet, comprising a rivet, four sets of connecting grooves are provided on the outer side of the rivet, a retaining plate is slidably connected inside the connecting groove, a groove is provided on the inner side of the retaining plate, a rotating shaft is rotatably connected inside the connecting groove, a rotating plate is fixedly connected to the outer side of the rotating shaft, a torsion spring is fixedly connected between the rotating plate and the connecting groove, and the torsion spring is sleeved on the outer side of the rotating shaft.

[0007] Preferably, a pull frame is fixedly connected to the upper side inside the restraining plate.

[0008] Preferably, two sets of springs are fixedly connected to the upper part of the inner side of the groove, and a push plate is fixedly connected to the lower part of the springs.

[0009] Preferably, two sets of rubber bushings are fixedly connected between the push plate and the inner wall of the groove, and the rubber bushings are sleeved on the outside of the spring.

[0010] Preferably, the connecting groove has limiting grooves on both sides, and limiting rods are fixedly connected to the upper and lower inner sides of the limiting grooves. A limiting plate is slidably connected to the outer side of the limiting rod on the same side, and the limiting plate is fixedly connected to the restraining plate.

[0011] Preferably, the outer side of the restraining plate has longitudinal grooves, and the lower side of the rivet head has axial grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model inserts a rivet gun into the rivet, which pushes a rotating plate to rotate vertically. The retaining plate can move inward along the connecting groove, inserting the rivet into the mounting hole of the workpiece, so that the rivet head fits against the surface of the workpiece. The rivet gun disengages from the rivet, and a torsion spring drives the rotating plate to rotate. The rotating plate pushes the groove on the inner side of the retaining plate, causing the retaining plate to move outward. This increases the adhesion force between the rivet and the inner wall of the mounting hole, preventing the rivet from shaking. It can effectively suppress radial shaking after the rivet is installed and reduce the wear and fatigue risk of the connection part. 2. This utility model also features a mechanism that, when the rotating plate rotates vertically, its upper part pushes the pulling frame, causing the restraining plate to move inward, thereby automatically retracting the restraining plate and preventing operational difficulties caused by manually pressing the restraining plate. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the present invention; Figure 3 This is a three-dimensional structural cross-sectional view of the present invention; Figure 4 This is an enlarged view of the structure at point A of this utility model; Figure 5 This is an enlarged view of the structure at point B of this utility model.

[0014] In the diagram: 1. Rivet; 2. Connecting groove; 3. Restraining plate; 4. Groove; 5. Rotating shaft; 6. Rotating plate; 7. Torsion spring; 8. Pulling frame; 9. Spring; 10. Push plate; 11. Rubber bushing; 12. Restricting groove; 13. Restricting plate; 14. Restricting rod; 15. Longitudinal notch; 16. Axial notch. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5This utility model provides a technical solution: a high-strength closed double-drum rivet, including a rivet 1, four sets of connecting grooves 2 on the outer side of the rivet 1, a retaining plate 3 slidably installed inside the connecting grooves 2, a groove 4 on the inner side of the retaining plate 3, a rotating shaft 5 rotatably installed inside the connecting grooves 2, a rotating plate 6 fixedly welded to the outer side of the rotating shaft 5, and a torsion spring 7 fixedly welded between the rotating plate 6 and the connecting grooves 2. The torsion spring 7 is sleeved on the outer side of the rotating shaft 5. When the rivet gun drives the rivet 1 to connect, the rivet gun is inserted into the rivet 1. The rivet gun pushes the rotating plate 6 to rotate to the vertical direction, so that the retaining plate 3 can move inward along the connecting groove 2, thereby preventing the retaining plate 3 from protruding and preventing the rivet 1 from being inserted into the workpiece. The rivet 1 is inserted into the mounting hole of the workpiece, so that the head of the rivet 1 is in contact with the surface of the workpiece. The rivet gun is disengaged from the inside of the rivet 1. The torsion spring 7 drives the rotating plate 6 to rotate. The rotating plate 6 pushes the groove 4 part on the inner side of the retaining plate 3, so that the retaining plate 3 moves outward, thereby increasing the adhesion force between the rivet 1 and the inner wall of the mounting hole and preventing the rivet 1 from shaking. A pull frame 8 is fixedly welded to the upper side inside the restraining plate 3. When the rotating plate 6 rotates in the vertical direction, its upper part pushes the pull frame 8 to drive the restraining plate 3 to move inward, which can automatically retract the restraining plate 3 and prevent manual pressing of the restraining plate 3 from causing operational difficulties. Two sets of springs 9 are fixedly welded to the upper part of the inner side of the groove 4, and a push plate 10 is fixedly welded to the lower part of the springs 9. The springs 9 drive the push plate 10 to press against the upper edge of the rotating plate 6 to prevent the rotating plate 6 from rotating in the vertical direction under shaking, thereby further improving the stability of the restraining plate 3. Two sets of rubber bushings 11 are fixedly welded between the push plate 10 and the inner wall of the groove 4. The rubber bushings 11 are sleeved on the outside of the spring 9. When the shaking causes the restraining plate 3 to move into the connecting groove 2, the groove 4 pushes the rotating plate 6 to rotate in the vertical direction, thereby causing the push plate 10 to move upward and compress the spring 9. The elasticity of the rubber bushings 11 to the spring 9 can absorb the lateral shaking energy, and at the same time, its friction can suppress high-frequency oscillation. Limiting grooves 12 are provided on both sides of the connecting groove 2. Limiting rods 14 are fixedly welded to the upper and lower inner sides of the limiting grooves 12. Limiting plates 13 are slidably installed on the outer side of the limiting rods 14 on the same side. The limiting plates 13 are fixedly welded to the restraining plates 3 to limit the movement direction of the restraining plates 3 and ensure that the restraining plates 3 do not detach from the connecting groove 2. The outer side of the retaining plate 3 has a longitudinal groove 15, and the lower side of the head of the rivet 1 has an axial groove 16. The retaining plate 3 moves and contacts the inner wall of the mounting hole. The longitudinal groove 15 increases the friction to initially fix it, and the axial groove 16 on the head of the rivet 1 enhances the fit stability with the workpiece, and finally completes a high-strength, sealed and anti-shaking connection.

[0017] Working principle: When using this utility model, the rivet gun is inserted into the rivet 1. The rivet gun pushes the rotating plate 6 to rotate vertically, and the pulling frame 8 causes the retaining plate 3 to move inward along the connecting groove 2, thereby preventing the retaining plate 3 from protruding and preventing the rivet 1 from being inserted into the workpiece. The rivet 1 is then inserted into the mounting hole of the workpiece, so that the head of the rivet 1 is in contact with the surface of the workpiece. The rivet gun is disengaged from the inside of the rivet 1. The torsion spring 7 drives the rotating plate 6 to rotate. The rotating plate 6 pushes the groove 4 on the inner side of the retaining plate 3, causing the retaining plate 3 to move outward, thereby increasing the contact force between the rivet 1 and the inner wall of the mounting hole and preventing the rivet 1 from shaking. When shaking occurs and causes the retaining plate 3 to move inward into the connecting groove 2, the groove 4 pushes the rotating plate 6 to rotate vertically, thereby causing the pushing plate 10 to move upward and compress the spring 9. The elasticity of the rubber bushing 11 to the spring 9 can absorb the lateral shaking energy, and its friction can suppress high-frequency oscillation.

[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength closed double-drum rivet, comprising a rivet (1), characterized in that: The rivet (1) has four sets of connecting grooves (2) on its outer side. A retaining plate (3) is slidably connected inside the connecting groove (2). A groove (4) is opened on the inner side of the retaining plate (3). A rotating shaft (5) is rotatably connected inside the connecting groove (2). A rotating plate (6) is fixedly connected to the outer side of the rotating shaft (5). A torsion spring (7) is fixedly connected between the rotating plate (6) and the connecting groove (2). The torsion spring (7) is sleeved on the outer side of the rotating shaft (5).

2. The high-strength closed double-drum rivet according to claim 1, characterized in that: A pull frame (8) is fixedly connected to the upper side inside the confinement plate (3).

3. The high-strength closed double-drum rivet according to claim 1, characterized in that: Two sets of springs (9) are fixedly connected to the upper part of the inner side of the groove (4), and a push plate (10) is fixedly connected to the lower part of the springs (9).

4. The high-strength closed double-drum rivet according to claim 1, characterized in that: Two sets of rubber bushings (11) are fixedly connected between the push plate (10) and the inner wall of the groove (4), and the rubber bushings (11) are sleeved on the outside of the spring (9).

5. A high-strength closed double-drum rivet according to claim 1, characterized in that: The connecting groove (2) has a limiting groove (12) on both sides. A limiting rod (14) is fixedly connected to the upper and lower inner sides of the limiting groove (12). A limiting plate (13) is slidably connected to the outer side of the limiting rod (14) on the same side. The limiting plate (13) is fixedly connected to the restraining plate (3).

6. The high-strength closed double-drum rivet according to claim 1, characterized in that: The outer side of the restraint plate (3) has longitudinal grooves (15), and the lower side of the head of the rivet (1) has axial grooves (16).

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