Self-plugging rivet with high sealing performance and vibration resistance

Abstract

The utility model relates to the technical field of self-plugging rivets, and discloses a self-plugging rivet with high sealing performance and vibration resistance, which comprises a rivet body, a lock ring fixedly arranged on the side wall of the rivet body, a core rod arranged on the inner wall of the lock ring, and a sealing assembly arranged on the lateral position of the rivet body, the sealing assembly comprises a sealing mechanism arranged on the side of the rivet body, an auxiliary mechanism is arranged on the inner wall of the rivet body, the sealing mechanism comprises a sealing gasket, the sealing gasket is slidably installed on the side wall of the rivet body, a limiting block is arranged on the inner wall of the sealing gasket in a contact mode, and a positioning rod is fixedly installed on the side wall of the limiting block. One end of the positioning rod movably penetrates through the inner wall of the positioning hole formed in the side wall of the lock ring. The self-plugging rivet solves the problems that an existing self-plugging rivet is poor in sealing performance in some environments with high sealing performance requirements, and leakage is prone to occurring when the self-plugging rivet is subjected to external environment pressure change or internal medium pressure.

Description

Technical Field

[0001] This utility model relates to the field of blind rivet technology, specifically to blind rivets with high sealing performance and vibration resistance. Background Technology

[0002] Blind rivets are a type of rivet used for single-sided riveting, but require a special tool—a rivet gun (manual, electric, or pneumatic)—for riveting. During riveting, the rivet core is pulled by the rivet gun, causing the rivet body to expand and achieve the riveting effect. These rivets are particularly suitable for riveting situations where it is inconvenient to use ordinary rivets (which require riveting from both sides), and are therefore widely used in construction, automobiles, ships, aircraft, machinery, electrical appliances, furniture, and other products. Among them, open-head flat-round head blind rivets are the most widely used, countersunk head blind rivets are suitable for riveting situations where a smooth surface is required, and closed-head blind rivets are suitable for riveting situations requiring higher load capacity and a certain degree of sealing performance.

[0003] Existing blind rivets have poor sealing performance in some environments with high sealing requirements, and are prone to leakage when subjected to changes in external environmental pressure or internal medium pressure. Utility Model Content

[0004] The purpose of this invention is to provide a core-pulling rivet with high sealing performance and vibration resistance, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-sealing and vibration-resistant blind rivet, comprising a rivet body,

[0006] A locking ring is fixedly installed on the side wall of the rivet body;

[0007] A core rod installed on the inner wall of the locking ring;

[0008] And a sealing assembly disposed on the side of the rivet body;

[0009] The sealing assembly includes a sealing mechanism disposed on the side of the rivet body;

[0010] An auxiliary mechanism is provided on the inner wall of the rivet body.

[0011] Preferably, the sealing mechanism includes a sealing gasket, which is slidably mounted on the side wall of the rivet body. A limit block is provided in contact with the inner wall of the sealing gasket. A positioning rod is fixedly mounted on the side wall of the limit block. One end of the positioning rod movably penetrates the inner wall of the locking ring side wall through a positioning hole. A nut is installed on one end of the positioning rod.

[0012] Preferably, the inner wall of the nut is threaded to the side wall of the positioning rod, and the side wall of the nut is in contact with the side wall of the locking ring.

[0013] Preferably, the sidewall of the sealing gasket is in contact with the sidewall of the locking ring, and there are two limiting blocks, both of which are equal in shape and size.

[0014] Preferably, the side wall diameter of the positioning rod is the same as the inner wall diameter of the positioning hole on the side wall of the locking ring, and the side wall of the positioning rod is slidably connected to the inner wall of the positioning hole.

[0015] Preferably, the auxiliary mechanism includes a strength material, which is fixedly installed on the inner wall of the rivet body, and a sealing material is fixedly installed on the inner wall of the strength material.

[0016] Preferably, the strength material is a titanium alloy, and the sealing material is fluororubber.

[0017] This invention provides a blind rivet with high sealing performance and vibration resistance. It has the following beneficial effects:

[0018] (1) When the operator uses the rivet body, the sealing gasket is first slidably fitted onto the side wall of the rivet body, so that one side of the sealing gasket contacts the side wall of the locking ring. Then, one end of the positioning rod can be inserted into the inner wall of the locking ring with the positioning hole, so that the side wall of the limiting block fits into the inner wall of the sealing gasket. Then, the position of the nut can be directly rotated to limit the position of the limiting block. The limiting block further stabilizes the position of the sealing gasket. The sealing gasket can effectively improve the sealing performance after the rivet is installed, and solve the problem that the existing blind rivets have poor sealing performance in some environments with high sealing requirements. When subjected to changes in external environmental pressure or internal medium pressure, leakage is likely to occur.

[0019] (2) The present invention uses titanium alloy as the strength material, which has good strength and corrosion resistance and is not easily damaged when subjected to vibration. The sealing material is fluororubber, which is an elastic sealing material. After the rivets are installed, the inner sealing material can fill the tiny gaps between the connecting parts and play a sealing role. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a partially unfolded schematic diagram of the sealing mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the sealing mechanism of this utility model;

[0023] Figure 4 This is a partial structural schematic diagram of the auxiliary mechanism of this utility model.

[0024] In the diagram: 1. Rivet body; 2. Locking ring; 3. Core rod; 4. Sealing assembly; 41. Sealing mechanism; 411. Sealing gasket; 412. Limiting block; 413. Positioning rod; 414. Nut; 42. Auxiliary mechanism; 421. Strength material; 422. Sealing material. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this 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] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0030] Example 1: A preferred embodiment of the high-sealing and vibration-resistant blind rivet provided by this utility model is as follows: Figures 1 to 4 As shown: A high-sealing and vibration-resistant blind rivet, including rivet body 1,

[0031] A locking ring 2 is fixedly installed on the side wall of the rivet body 1;

[0032] Core rod 3 installed on the inner wall of lock ring 2;

[0033] And a sealing component 4 located on the side of the rivet body 1;

[0034] The sealing assembly 4 includes a sealing mechanism 41 disposed on the side of the rivet body 1;

[0035] An auxiliary mechanism 42 is provided on the inner wall of the rivet body 1.

[0036] The sealing mechanism 41 includes a sealing gasket 411, which is slidably mounted on the side wall of the rivet body 1. A limit block 412 is provided in contact with the inner wall of the sealing gasket 411. A positioning rod 413 is fixedly mounted on the side wall of the limit block 412. One end of the positioning rod 413 moves through the inner wall of the locking ring 2 where a positioning hole is opened. A nut 414 is installed on one end of the positioning rod 413.

[0037] In this embodiment, the inner wall of the nut 414 is threadedly connected to the side wall of the positioning rod 413, and the side wall of the nut 414 is in contact with the side wall of the locking ring 2.

[0038] Furthermore, the sidewall of the sealing gasket 411 is in contact with the sidewall of the locking ring 2, and there are two limiting blocks 412, both of which are equal in shape and size.

[0039] Furthermore, the side wall diameter of the positioning rod 413 is the same as the inner wall diameter of the positioning hole on the side wall of the locking ring 2, and the side wall of the positioning rod 413 is slidably connected to the inner wall of the positioning hole.

[0040] In the specific implementation process, when the operator uses the rivet body 1, firstly, the sealing gasket 411 is slidably fitted onto the side wall of the rivet body 1, so that one side of the sealing gasket 411 contacts the side wall of the locking ring 2. Then, one end of the positioning rod 413 can be inserted into the inner wall of the locking ring 2 where the positioning hole is opened, so that the side wall of the limiting block 412 fits against the inner wall of the sealing gasket 411. Then, the position of the nut 414 can be directly rotated to limit the position of the limiting block 412. The limiting block 412 further stabilizes the position of the sealing gasket 411. The sealing gasket 411 can effectively improve the sealing performance after the rivet is installed.

[0041] Example 2: Based on Example 1, a preferred embodiment of the high-sealing and vibration-resistant blind rivet provided by this utility model is as follows: Figures 1 to 4 As shown: The auxiliary mechanism 42 includes a strength material 421, which is fixedly installed on the inner wall of the rivet body 1, and a sealing material 422 is fixedly installed on the inner wall of the strength material 421.

[0042] In this embodiment, the strength material 421 is made of titanium alloy, and the sealing material 422 is made of fluororubber.

[0043] In the specific implementation process, titanium alloy is selected as the strength material 421, which has good strength and corrosion resistance. Fluororubber is used as the sealing material 422, which is an elastic sealing material. After the rivets are installed, the inner sealing material can fill the tiny gaps between the connecting parts and play a sealing role.

[0044] 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 the 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.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-sealing and vibration-resistant blind rivet, comprising a rivet body (1). A locking ring (2) is fixedly installed on the side wall of the rivet body (1); Core rod (3) installed on the inner wall of the locking ring (2); and a sealing assembly (4) disposed on the side of the rivet body (1); characterized in that: The sealing assembly (4) includes a sealing mechanism (41) located on the side of the rivet body (1). An auxiliary mechanism (42) is provided on the inner wall of the rivet body (1).

2. The high-sealing and vibration-resistant blind rivet according to claim 1, characterized in that: The sealing mechanism (41) includes a sealing gasket (411), which is slidably installed on the side wall of the rivet body (1). A limit block (412) is provided in contact with the inner wall of the sealing gasket (411). A positioning rod (413) is fixedly installed on the side wall of the limit block (412). One end of the positioning rod (413) moves through the inner wall of the locking ring (2) where a positioning hole is opened. A nut (414) is installed on one end of the positioning rod (413).

3. The high-sealing and vibration-resistant blind rivet according to claim 2, characterized in that: The inner wall of the nut (414) is threadedly connected to the side wall of the positioning rod (413), and the side wall of the nut (414) is in contact with the side wall of the locking ring (2).

4. The high-sealing and vibration-resistant blind rivet according to claim 3, characterized in that: The sidewall of the sealing gasket (411) is in contact with the sidewall of the locking ring (2), and there are two limiting blocks (412), both of which are equal in shape and size.

5. The high-sealing and vibration-resistant blind rivet according to claim 4, characterized in that: The side wall diameter of the positioning rod (413) is the same as the inner wall diameter of the positioning hole on the side wall of the locking ring (2), and the side wall of the positioning rod (413) is slidably connected to the inner wall of the positioning hole.

6. The high-sealing and vibration-resistant blind rivet according to claim 1, characterized in that: The auxiliary mechanism (42) includes a strength material (421), which is fixedly installed on the inner wall of the rivet body (1), and a sealing material (422) is fixedly installed on the inner wall of the strength material (421).

7. The high-sealing and vibration-resistant blind rivet according to claim 6, characterized in that: The strength material (421) is made of titanium alloy, and the sealing material (422) is made of fluororubber.

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