Dustproof and noise-proof self-plugging rivet

Abstract

The utility model relates to the technical field of rivets, in particular to a dustproof and noise-proof self-plugging rivet which comprises a rivet rod, a rivet sleeve arranged on the rivet rod in a sleeving mode and a rubber sleeve arranged on the rivet sleeve in a sleeving mode. A rivet head is fixedly arranged at the top end of the rivet rod, and a riveting groove and a snapping groove are sequentially formed in the outer wall, close to the rivet head, of the rivet rod; the dustproof and noise-proof self-plugging rivet comprises a rivet rod and a rivet sleeve, a rivet head is fixedly arranged on the rivet rod, a plurality of pull-apart grooves are formed in the rivet head, a plurality of positioning grooves are formed in the outer wall of the rivet sleeve, a riveting protrusion and a locking protrusion are sequentially and fixedly arranged on the inner wall of the rivet sleeve, and a chamfer is formed in the end, away from the rivet head, of the rivet rod. And in combination with an adaptive structure of the rubber sleeve, the mounting precision and the connection reliability can be remarkably improved, the sealing performance, the damping performance and the corrosion resistance are enhanced through close fit of the rubber sleeve and the positioning groove, and meanwhile the dustproof and noise-proof effects are achieved.

Description

Technical Field

[0001] This utility model relates to the field of rivet technology, specifically to a dustproof and noise-reducing pull rivet. Background Technology

[0002] Blind rivets (also known as pop rivets) are a type of mechanical fastener that is installed from one side. They consist of a hollow rivet sleeve and an internal rivet core. The core principle is to use a special riveting tool (such as a rivet gun) to pull the rivet core, causing the tail of the rivet sleeve to expand and deform, thereby clamping the connected plates to achieve permanent fixation. Compared to traditional rivets that require operation from both sides, blind rivets can be installed in one side only. They are particularly suitable for assembly scenarios in enclosed structures or confined spaces, such as aerospace, automobile manufacturing, and building curtain walls.

[0003] Blind rivets offer advantages such as quick installation, shock resistance, and excellent sealing, but they still have certain drawbacks: 1) In humid or corrosive environments, insufficient sealing can lead to liquid penetration or electrochemical corrosion; 2) They lack dust and noise protection, or their dust and noise protection is poor; 3) Under stress, they are prone to localized cracking or deformation due to stress concentration. Therefore, in light of these issues, there is an urgent need to develop dustproof and noise-reducing blind rivets to overcome the shortcomings in current applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a dustproof and noise-proof pull rivet to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dustproof and noise-proof pull rivet, comprising a rivet rod, a rivet sleeve fitted on the rivet rod, and a rubber sleeve fitted on the rivet sleeve;

[0006] In practical use, the rubber sleeve can improve sealing and shock absorption performance, effectively prevent liquid penetration and reduce vibration transmission; the superimposed structure of the rivet sleeve and the rubber sleeve enhances the overall tensile strength and deformation resistance, while reducing wear on the substrate surface during installation; the outer layer of the rubber sleeve can be adapted to substrates of different materials, avoiding electrochemical corrosion problems caused by metal contact and extending the service life of the rivet in complex environments.

[0007] A nail head is fixed at the top of the rivet rod, and a riveting groove and a pull-out groove are sequentially formed on the outer wall of the rivet rod adjacent to the nail head;

[0008] The outer wall of the rivet sleeve has several positioning grooves, and the inner wall of the rivet sleeve is fixed with riveting protrusions and locking protrusions in sequence.

[0009] Preferably, the end of the rivet rod away from the rivet head has a chamfer.

[0010] Preferably, the rubber sleeve is adapted to the positioning groove.

[0011] In practical use, the tight fit between the rubber sleeve and the positioning groove ensures accurate positioning during installation, preventing the rubber sleeve from shifting or tilting, and improving the stability of the sealing and shock absorption effects. The positioning groove's limiting effect on the rubber sleeve can disperse stress during the riveting process, avoiding local deformation or damage, and enhancing the reliability of the overall structure. The adaptive design simplifies the installation process, reduces manual adjustment steps, improves assembly efficiency, and reduces the risk of seal failure or material wear caused by misalignment.

[0012] Preferably, the riveting protrusion is adapted to the riveting groove.

[0013] In practical use, the fit between the riveting protrusion and the riveting groove can enhance the tensile strength and shear resistance after riveting, while also evenly distributing stress and preventing local cracking.

[0014] Preferably, the locking protrusion is adapted to the pull-off groove.

[0015] In practical use, the locking protrusion and the pull-off groove can be matched to precisely control the pull-off position, ensuring that the sleeve and the base material are tightly attached after the rivet rod breaks, reducing the risk of loosening.

[0016] Compared with the prior art, this utility model provides a dustproof and noise-reducing blind rivet, which has the following beneficial effects:

[0017] This dustproof and noise-reducing blind rivet, through the coordinated design of the rivet head, riveting groove, and breakaway groove of the rivet shank, and the positioning groove, riveting protrusion, and locking protrusion of the rivet sleeve, combined with the adaptable structure of the rubber sleeve, can significantly improve installation accuracy and connection reliability. The tight fit between the rubber sleeve and the positioning groove enhances sealing performance, shock absorption, and corrosion resistance, while also providing dustproof and noise-reducing effects. The mechanical interlock between the riveting protrusion and the riveting groove optimizes tensile and shear strength, and the adaptation between the locking protrusion and the breakaway groove precisely controls the fracture position, ensuring that the sleeve and the substrate are tightly fitted after the rivet shank breaks, reducing the risk of loosening. At the same time, the stress distribution uniformity design reduces the probability of local deformation, and the positioning groove further disperses stress and simplifies the installation process. The overall structure takes into account the requirements of efficient assembly, environmental adaptability, and long service life, and is suitable for high-strength fastening scenarios under complex working conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0020] Figure 2 This is an exploded view of the entire utility model;

[0021] Figure 3 This is a cross-sectional view of the present invention;

[0022] Figure 4 This is a side longitudinal sectional view of the entire utility model;

[0023] Figure 5 This is a schematic diagram of the rivet rod structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the rivet sleeve structure of this utility model;

[0025] Figure 7 This is a cross-sectional view of the rivet sleeve of this utility model.

[0026] In the diagram: 10, rivet rod; 110, rivet head; 120, riveting groove; 130, breakaway groove; 140, chamfer; 20, rivet sleeve; 210, positioning groove; 220, riveting protrusion; 230, locking protrusion; 30, rubber sleeve. Detailed Implementation

[0027] 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.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example:

[0030] Please see Figures 1-7 This utility model provides a technical solution: a dustproof and noise-proof pull rivet, including a rivet rod 10, a rivet sleeve 20 sleeved on the rivet rod 10, and a rubber sleeve 30 sleeved on the rivet sleeve 20.

[0031] In practical use, the rubber sleeve 30 can improve sealing and shock absorption performance, effectively prevent liquid penetration and reduce vibration transmission; the superimposed structure of the rivet sleeve 20 and the rubber sleeve 30 enhances the overall tensile strength and deformation resistance, while reducing wear on the substrate surface during installation; the outer layer of the rubber sleeve 30 can be adapted to substrates of different materials, avoiding electrochemical corrosion problems caused by metal contact and extending the service life of the rivet in complex environments.

[0032] The top end of the rivet rod 10 is fixed with a nail head 110, and the outer wall of the rivet rod 10 adjacent to the nail head 110 is provided with a riveting groove 120 and a breakage groove 130 in sequence.

[0033] The outer wall of the rivet sleeve 20 is provided with several positioning grooves 210, and the inner wall of the rivet sleeve 20 is provided with riveting protrusions 220 and locking protrusions 230 in sequence.

[0034] Preferably, the end of the rivet rod 10 away from the rivet head 110 has a chamfer 140.

[0035] Preferably, the rubber sleeve 30 is adapted to the positioning groove 210.

[0036] In practical use, the tight fit between the rubber sleeve 30 and the positioning groove 210 ensures accurate positioning during installation, prevents the rubber sleeve 30 from shifting or tilting, and improves the stability of sealing and shock absorption. The positioning groove 210's limiting effect on the rubber sleeve 30 can disperse stress during the riveting process, avoid local deformation or damage, and enhance the reliability of the overall structure. The adaptive design simplifies the installation process, reduces manual adjustment steps, improves assembly efficiency, and reduces the risk of sealing failure or material wear caused by misalignment.

[0037] Preferably, the riveting protrusion 220 is adapted to the riveting groove 120.

[0038] In practical use, the fit between the riveting protrusion 220 and the riveting groove 120 can enhance the tensile strength and shear resistance after riveting, while uniformly dispersing stress and avoiding local cracking.

[0039] Preferably, the locking protrusion 230 is adapted to the pull-off groove 130.

[0040] In practical use, the locking protrusion 230 and the pull-off groove 130 are matched to precisely control the pull-off position, ensuring that the sleeve 20 and the substrate are tightly attached after the rivet rod 10 breaks, reducing the risk of loosening.

[0041] Working principle: During installation, the rivet rod 10, together with the rivet sleeve 20, is inserted into the pre-drilled hole to be riveted. The rivet rod 10 is pulled axially using a special tool, and the rivet head 110 provides a reverse support force, forcing the rivet sleeve 20 to expand radially within the hole of the substrate. The riveting protrusion 220 and the riveting groove 120 engage to form a mechanical interlock, evenly distributing the load to resist tensile and shear forces. When the tensile force reaches the preset value, the breakage groove 130 breaks precisely under the stress concentration of the locking protrusion 230, ensuring that the residual length of the rivet rod 10 is controllable, and allowing the sleeve 20 to be fully compacted with the substrate. At the same time, the rubber sleeve 30 is uniformly deformed by the positioning groove 210, filling the gap in the substrate to enhance the sealing performance, and absorbing vibration energy through elastic deformation. Its non-metallic properties isolate metal contact and avoid electrochemical corrosion. The overall design achieves a balance between ease of installation, connection strength, and adaptability to working conditions through structural adaptation and stress control.

[0042] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A dustproof and noise-proof blind rivet, characterized in that: Includes a rivet rod (10), a rivet sleeve (20) sleeved on the rivet rod (10), and a rubber sleeve (30) sleeved on the rivet sleeve (20). The top end of the rivet rod (10) is fixed with a nail head (110), and the outer wall of the rivet rod (10) adjacent to the nail head (110) is sequentially provided with a riveting groove (120) and a pull-out groove (130). The outer wall of the rivet sleeve (20) is provided with a plurality of positioning grooves (210), and the inner wall of the rivet sleeve (20) is provided with riveting protrusions (220) and locking protrusions (230) in sequence.

2. The dustproof and noise-reducing blind rivet according to claim 1, characterized in that: The rivet rod (10) has a chamfer (140) at the end away from the rivet head (110).

3. The dustproof and noise-reducing blind rivet according to claim 1, characterized in that: The rubber sleeve (30) is adapted to the positioning groove (210).

4. The dustproof and noise-reducing blind rivet according to claim 1, characterized in that: The riveting protrusion (220) is adapted to the riveting groove (120).

5. The dustproof and noise-reducing blind rivet according to claim 1, characterized in that: The locking protrusion (230) is adapted to the pull-off groove (130).

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