Hollow rivet fastener

Abstract

The utility model relates to the technical field of rivets, and discloses a hollow rivet fastener which comprises a rivet head part, the bottom end of the rivet head part is fixedly connected with a rivet rod part, a plurality of tail opening ends are installed at the bottom end of the rivet rod part, an elastic spring is arranged on the surface of the rivet rod part in a sleeved mode, and the tail opening ends are connected with the elastic spring. The top end of the elastic spring is fixedly connected with the bottom end of the rivet head part, a contact plate is installed at the tail end of the elastic spring, a plurality of metal barbs are installed on the surface of the rivet rod part, and the barb direction of the metal barbs is opposite to the insertion direction of the rivet rod part. According to the hollow rivet fastener, through the design of the elastic spring and the contact plate, when a connecting piece connected with a hollow rivet has tiny size or shape change due to the conditions of temperature change, stress deformation and the like, the elastic spring can adapt to the change through stretching and retracting, so that the contact plate always keeps good contact with the connecting piece, and stable connecting force is maintained; and looseness is not easy to generate.

Description

TECHNICAL FIELD

[0001] The utility model relates to rivet technical field especially relates to a hollow rivet fastener. BACKGROUND

[0002] Rivets are metal products used to connect two or more components, usually composed of a head and a shank, hollow rivets are a special type of rivet that have the basic functions and structural characteristics of rivets, both use their own deformation to achieve the connection between components, however, hollow rivets differ from ordinary rivets in structure, their shanks are hollow, which gives them unique advantages in some specific application scenarios, such as lighter weight, easy to install, suitable for connecting some thin materials, etc.

[0003] In the prior art, the connection force of the installed hollow rivet is usually fixed, which is difficult to adapt to the slight size and shape changes of the connecting piece caused by various factors during use, this limitation may lead to connection failure or additional stress concentration, thereby shortening the service life of the connecting piece and the rivet, in addition, it may also cause the loosening problem of the hollow rivet. SUMMARY

[0004] The technical problem to be solved by the utility model is that in the prior art, the installed hollow rivet cannot adapt to the slight size changes of the connecting piece, which may easily cause loosening, therefore, we propose a hollow rivet fastener.

[0005] In order to achieve the above purpose, the following technical scheme is adopted in the present application: a hollow rivet fastener, comprising a rivet head, the bottom end of the rivet head is fixedly connected with a rivet shank, the bottom end of the rivet shank is installed with a plurality of tail opening ends, the surface of the rivet shank is sleeved with an elastic spring, the top end of the elastic spring is fixedly connected with the bottom end of the rivet head, and the end of the elastic spring is installed with a contact plate.

[0006] Preferably, a plurality of metal barbs are installed on the surface of the rivet shank, the barb direction of the metal barb is opposite to the insertion direction of the rivet shank.

[0007] Preferably, a guide piece is installed on the surface of the rivet head, the number of the guide piece is several and evenly distributed on the surface of the rivet head.

[0008] Preferably, a slot is opened at the top end of the rivet head, and a magnetic round plate is installed in the slot.

[0009] Preferably, a weak groove is opened on the surface of the tail opening end.

[0010] Preferably, the edge part of the rivet head, the rivet shank and the tail opening end are all designed with a round corner.

[0011] Preferably, the rivet head and the surface of the rivet shank are coated with an acrylic anticorrosion coating.

[0012] The technical effects and advantages of the present application are as follows:

[0013] In the present application, when the connecting piece connected with the hollow rivet changes slightly in size or shape due to temperature change, stress deformation or other conditions, the elastic spring can adapt to such changes through expansion and contraction, so that the contact plate always maintains good contact with the connecting piece and maintains stable connection force, and is not prone to looseness. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the hollow rivet main structure of the present application;

[0015] Figure 2 It is a schematic view of the hollow rivet bottom structure of the present application;

[0016] Figure 3 It is a schematic view of the hollow rivet internal structure of the present application;

[0017] Figure 4 It is a schematic view of the metal barb and guide piece structure of the present application.

[0018] Legend: 1, rivet head; 2, rivet shank; 3, tail opening end; 4, elastic spring; 5, contact plate; 6, metal barb; 7, guide piece; 8, slot; 9, magnetic round plate; 10, weak groove. DETAILED DESCRIPTION

[0019] The present application will now be further described in detail with reference to the accompanying drawings and preferred embodiments, which are all simplified schematic views and only illustrate the basic structure of the present application in a schematic manner, and therefore only show the components related to the present application.

[0020] Referring to Figures 1-3 The present application provides a technical solution: a hollow rivet fastener, comprising a rivet head 1, the bottom end of the rivet head 1 is fixedly connected with a rivet shank 2, the bottom end of the rivet shank 2 is installed with a plurality of tail opening ends 3, the surface of the rivet shank 2 is sleeved with an elastic spring 4, the top end of the elastic spring 4 is fixedly connected with the bottom end of the rivet head 1, the end of the elastic spring 4 is installed with a contact plate 5, through the design of the elastic spring 4 and the contact plate 5, when the connecting piece connected with the hollow rivet changes slightly in size or shape due to temperature change, stress deformation or other conditions, the elastic spring 4 can adapt to such changes through expansion and contraction, so that the contact plate 5 always maintains good contact with the connecting piece, maintains stable connection force, and is not prone to looseness.

[0021] Referring toFigure 2 With Figure 4 As shown in the figure, in the embodiment: the surface of the rivet shaft 2 is provided with a plurality of metal barbs 6, the barb direction of the metal barb 6 is opposite to the insertion direction of the rivet shaft 2, by installing the metal barb 6 opposite to the insertion direction of the rivet shaft 2 on the surface of the rivet shaft 2, the metal barb 6 can be embedded into the material of the connector after the rivet shaft 2 is inserted into the connector, preventing the rivet shaft 2 from being pulled out, enhancing the firmness of the connection, and making the rivet shaft 2 more suitable for use in occasions requiring one-way fastening.

[0022] Referring to Figure 2 With Figure 4 As shown in the figure, in the embodiment: the surface of the rivet head 1 is provided with a guide piece 7, the number of the guide piece 7 is several and uniformly distributed on the surface of the rivet head 1, by the setting of the plurality of guide pieces 7, when the rivet head 1 and the rivet shaft 2 need to be installed into the connector, the guide piece 7 will be clamped on the edge of the hole of the connector, playing a role of precise positioning, preventing the rivet head 1 and the rivet shaft 2 from tilting during fastening, improving the installation accuracy and ensuring the connection quality.

[0023] Referring to Figure 3 As shown in the figure, in the embodiment: the top end of the rivet head 1 is provided with a slot 8, and a magnetic circular plate 9 is installed inside the slot 8, by the design of the slot 8 and the magnetic circular plate 9, the worker can conveniently use the magnetic tool to grab and install when installing the rivet head 1 and the rivet shaft 2, improving the installation efficiency, and at the same time, in some occasions where metal contact needs to be avoided, non-contact positioning of the rivet head 1 and the rivet shaft 2 can be realized by magnetic adsorption.

[0024] Referring to Figure 2 As shown in the figure, in the embodiment: the surface of the tail opening end 3 is provided with a weak groove 10, by designing the weak groove 10 on the surface of the tail opening end 3, when it is needed to fasten the position of the rivet shaft 2, the tail opening end 3 can be more easily opened and processed, effectively saving the effort of the worker during fastening, and improving the convenience.

[0025] Referring to Figure 1 With Figure 2 As shown in the figure, in the embodiment: the edge part of the rivet head 1, the rivet shaft 2 and the tail opening end 3 are all designed with round corners, by designing a plurality of round corners on the surface of the fastener, it can have a more smooth touch experience during use, thereby effectively preventing scratches and other situations during later touch or disassembly, effectively improving the safety during use.

[0026] Referring to Figure 1As shown, in the present embodiment: the surface of the rivet head 1 and the rivet rod 2 is coated with an acrylic anticorrosive coating. By coating the surface of the rivet head 1 and the rivet rod 2 with an acrylic anticorrosive coating, rust and corrosion of the rivet head 1 and the rivet rod 2 can be effectively prevented, the corrosion resistance in harsh environments can be improved, the service life can be prolonged, and the maintenance cost can be reduced.

[0027] Working principle: through the design of elastic spring 4 and contact plate 5, when the connecting piece connected with the hollow rivet changes slightly in size or shape due to temperature change, stress deformation and other conditions, the elastic spring 4 can adapt to such changes by stretching and contracting, so that the contact plate 5 always maintains good contact with the connecting piece, maintains stable connection force, and is not easy to loosen. By installing metal barbs 6 opposite to the insertion direction of the rivet rod 2 on the surface of the rivet rod 2, the metal barbs 6 can be embedded into the material of the connecting piece after the rivet rod 2 is inserted into the connecting piece, preventing the rivet rod 2 from being pulled out and enhancing the firmness of the connection, so that the rivet rod 2 is more suitable for use in occasions requiring one-way fastening. Through the setting of multiple guide pieces 7, when the rivet head 1 and the rivet rod 2 need to be installed into the connecting piece, the guide pieces 7 will be clamped on the edge of the hole of the connecting piece, playing the role of precise positioning and preventing the rivet head 1 and the rivet rod 2 from tilting during fastening, improving installation accuracy and ensuring connection quality. Through the design of slot 8 and magnetic circular plate 9, workers can conveniently use magnetic tools to grab and install the rivet head 1 and the rivet rod 2 during installation, improving installation efficiency. Meanwhile, in some occasions where metal contact needs to be avoided, magnetic adsorption can be used to realize non-contact positioning of the rivet head 1 and the rivet rod 2. By designing a weak groove 10 on the surface of the tail opening end 3, when the position of the rivet rod 2 needs to be fastened, the tail opening end 3 can be more easily opened and processed, effectively saving the effort of workers during fastening and improving convenience. By designing several rounded corners on the surface of the fastener, a smoother touch experience can be achieved during use, thereby effectively preventing scratches and other situations during later touching or disassembly, effectively improving safety during use. By coating the surface of the rivet head 1 and the rivet rod 2 with an anticorrosive coating, rust and corrosion of the rivet head 1 and the rivet rod 2 can be effectively prevented, the corrosion resistance in harsh environments can be improved, the service life can be prolonged, and the maintenance cost can be reduced.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A hollow rivet fastener, comprising a rivet head (1), characterized in that: The bottom end of the rivet head (1) is fixedly connected to the rivet rod (2), and the bottom end of the rivet rod (2) is equipped with several tail opening ends (3). A spring spring (4) is sleeved on the surface of the rivet rod (2), the top end of the spring spring (4) is fixedly connected to the bottom end of the rivet head (1), and a contact plate (5) is installed at the end of the spring spring (4).

2. A hollow rivet fastener according to claim 1, characterized in that: The surface of the rivet shank (2) is provided with a plurality of metal barbs (6), the barbs (6) being in the opposite direction to the insertion direction of the rivet shank (2).

3. A hollow rivet fastener according to claim 1, characterized in that: The rivet head (1) is provided with a guide plate (7), and the guide plate (7) is a plurality of plates and is evenly distributed on the surface of the rivet head (1).

4. A hollow rivet fastener according to claim 1, characterized in that: The top of the rivet head (1) is provided with a slot (8), and a magnetic circular plate (9) is installed inside the slot (8).

5. A hollow rivet fastener according to claim 1, characterized in that: The surface of the tail opening end (3) is provided with a weak groove (10).

6. A hollow rivet fastener according to claim 1, characterized in that: The edges of the rivet head (1), rivet shank (2), and tail opening end (3) are all designed with rounded corners.

7. A hollow rivet fastener according to claim 1, characterized in that: The surfaces of the rivet head (1) and the rivet shank (2) are coated with an acrylic anti-corrosion coating.

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