Open type stainless steel blind rivet with sealing effect

Abstract

The utility model discloses an open type stainless steel blind rivet with sealing effect, comprising: a nail core, comprising a crimping section, a nail cap connected to one end of the crimping section, a smooth rod section connected to the other end of the crimping section, and a threaded section, the surface of the crimping section is provided with straight teeth and is coated with sealant; a rivet body, comprising a deformation part, a connecting part connected to the deformation part, and a rivet body cap, the deformation part, the connecting part, and the rivet body cap are sleeved with the crimping section, one side of the rivet body cap adjacent to the connecting part is provided with sealant or a sealing ring; by coating the surface of the crimping section with sealant, the sealant will uniformly fill the contact gap between the crimping section and the deformation part during riveting, and secondly, sealant or a sealing ring is arranged on the side of the rivet body cap that is attached to the target object, the double structure can effectively block water vapor, dust, or fluid from penetrating, and can be adapted to scenes that require sealing, such as humid and dusty environments.

Description

Technical Field

[0001] This invention relates to the field of rivet technology, and more particularly to an open-type stainless steel blind rivet with a sealing effect. Background Technology

[0002] The working principle of blind rivets is to pull the rivet core. With the help of an inward force, when the blind rivet is riveted, the rivet core is pulled by a special rivet gun, causing the rivet body to expand and achieve the riveting effect. The advent of blind rivets has made single-sided operation a simple and easy process, improving our work efficiency.

[0003] Chinese patent CN221482355U discloses a blind rivet, in which a rivet ring is fitted onto the outside of the rivet shank and attached to the bottom of the rivet head. The rivet ring increases the force-bearing area after the rivet head is fixed, avoiding the situation where the rivet cannot be used due to a groove at the installation position, and also strengthens the clamping structure of the blind rivet, improving the overall stability. However, in practical applications, the connection is achieved solely by mechanical fitting after the rivet body deforms, without a dedicated sealing structure for the gap. In humid, dusty, or fluid-contact scenarios, moisture and dust can easily seep in or the medium can leak, failing to meet the sealing requirements for waterproofing and dustproofing.

[0004] Therefore, it is necessary to develop an open-type stainless steel blind rivet with a sealing effect to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an open-type stainless steel blind rivet with a sealing effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an open-type stainless steel blind rivet with a sealing effect, comprising: The nail core includes a crimping section, a nail head connected to one end of the crimping section, a smooth rod section and a threaded section connected to the other end of the crimping section, and the surface of the crimping section is provided with straight teeth and coated with sealant; The rivet body includes a deformable part, a connecting part connecting the deformable part, and a rivet cap. The deformable part, the connecting part, and the rivet cap are fitted onto the crimping section. The side of the rivet cap adjacent to the connecting part is provided with sealant or a sealing ring.

[0007] Furthermore, the sealant is applied from one end of the crimping section to the other end, adjacent to the nail head and the smooth rod section respectively.

[0008] Furthermore, the straight teeth are formed by recessing or protruding inward from the surface of the crimping section, extending axially from one end of the crimping section along the surface of the crimping section to the other end, and are adjacent to the nail head and the smooth rod section respectively.

[0009] Furthermore, the number of straight teeth is only one pair, and the pair of straight teeth are arranged in parallel relative to each other.

[0010] Furthermore, the rivet body has a mounting through hole that sequentially penetrates the deformed part, the connecting part, and the rivet body cap. The diameter of the mounting through hole is larger than the diameter of the crimping section, the smooth rod section, and the threaded section, but smaller than the diameter of the rivet cap.

[0011] Furthermore, when the nail core and the rivet body are connected, the crimping section, the smooth rod section and the threaded section pass through the mounting through hole, and the nail head abuts against the end face of the deformed part.

[0012] Furthermore, the strength of the deformed portion is less than that of the connecting portion.

[0013] Furthermore, the diameter of the nail head is larger than the diameter of the crimping section.

[0014] Furthermore, a breakable ring groove is provided at the connection between the crimping section and the smooth rod section.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is an open-type stainless steel blind rivet with a sealing effect. By applying sealant to the surface of the crimping section, the sealant will evenly fill the contact gap between the crimping section and the deformed part during riveting. Secondly, a sealant or sealing ring is set on the side of the rivet cap that is in contact with the target object. The double structure can effectively prevent moisture, dust or fluid from seeping in, and can be adapted to humid, dusty and other scenarios that require sealing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is a schematic diagram of an open-type stainless steel blind rivet structure with a sealing effect according to the present invention. Figure 2 for Figure 1 The diagram shows the core structure of an open-type stainless steel blind rivet with a sealing effect. Figure 3 This is a schematic diagram of an open-type stainless steel blind rivet with a sealing effect after riveting according to this utility model.

[0018] In the diagram: 1. Nail core; 11. Crimping section; 12. Smooth section; 13. Threaded section; 14. Nail head; 15. Sealant; 16. Straight teeth; 2. Rivet body; 21. Deformation part; 22. Connecting part; 23. Rivet head; 24. Mounting through hole; 3. Mounting hole. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, provides a detailed account of the specific implementation methods, structures, features, and effects proposed according to this utility model. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0021] The following description, in conjunction with the accompanying drawings, details the specific solution of the open-type stainless steel blind rivet with sealing effect provided by this utility model.

[0022] Please refer to Figures 1 to 3 This utility model is an open-type stainless steel blind rivet with a sealing effect, which includes a rivet core 1 and a rivet body 2 that fits the rivet core 1.

[0023] Please refer to Figures 1 to 2 The nail core 1 includes a crimping section 11, a smooth rod section 12, and a threaded section 13. The crimping section 11, the smooth rod section 12, and the threaded section 13 are integrally formed and have the same diameter.

[0024] One end of the crimping section 11 is fixedly connected to a nail head 14, the diameter of which is larger than the diameter of the crimping section 11. The other end of the crimping section 11 is connected to a smooth rod section 12. A breakable ring groove (not shown) is provided at the connection between the crimping section 11 and the smooth rod section 12. This breakable ring groove provides uniform resistance when the rivet gun pulls the nail core 1, making it easier for the crimping section 11 and the smooth rod section 12 to break, and allowing the crimping section 11 and the smooth rod section 12 to completely separate when broken.

[0025] The surface of the crimped section 11 is evenly coated with sealant 15. Specifically, the sealant 15 is applied from one end of the crimped section 11 to the other end, adjacent to the nail head 14 and the smooth rod section 12 respectively.

[0026] Preferably, the crimping section 11 is provided with a plurality of straight teeth 16, which are formed by recesses or protrusions from the surface of the crimping section 11, extending axially from one end of the crimping section 11 along its surface to the other end, and are adjacent to the nail head 14 and the smooth rod section 12 respectively. Further, the plurality of straight teeth 16 are arranged in parallel relative to each other.

[0027] One end of the smooth rod section 12 is connected to the crimping section 11, and the other end is connected to the threaded section 13. The threaded section 13 can increase the friction between the nail core 1 and the rivet gun.

[0028] Please refer to Figure 1 and Figure 3 The rivet body 2 includes a deformable part 21, a connecting part 22, and a rivet cap 23. The deformable part 21, the connecting part 22, and the rivet cap 23 are integrally formed.

[0029] The rivet body 2 has a mounting through hole 24, which passes through the deformation part 21, the connecting part 22, and the rivet body cap 23 in sequence. The diameter of the mounting through hole 24 is larger than the diameter of the crimping section 11, the smooth section 12, and the threaded section 13, but smaller than the diameter of the nail head 14. When the nail core 1 and the rivet body 2 are mated, the crimping section 11, the smooth section 12, and the threaded section 13 pass through the mounting through hole 24, and the nail head 14 abuts against the end face of the deformation part 21.

[0030] Specifically, one end of the connecting part 22 is fixedly connected to the deformable part 21, and the other end is fixedly connected to the rivet cap 23. The strength of the deformable part 21 is less than that of the connecting part 22. The diameter of the rivet cap 23 is larger than that of the connecting part 22, and a sealant 15 or a sealing ring is provided on the side of the rivet cap 23 near the connecting part 22.

[0031] When using the open-type stainless steel blind rivet with sealing effect, the two or more target objects to be connected are aligned, and the mounting holes 3 matching the rivet body 2 are drilled at the preset positions. The deformable part 21 of the rivet body 2 is oriented towards the mounting hole 3, so that the entire rivet body 2 passes through the mounting hole 3 of the target object until the rivet cap 23 is in close contact with the surface of the target object. The sealant 15 or sealing ring provided on the rivet cap 23 is attached to the surface of the target object.

[0032] Align the rivet gun tip with the threaded section 13 of the rivet core 1, and start the rivet gun to clamp the threaded section 13. The rivet gun applies axial tension to the rivet core 1 through the threaded section 13, causing the crimping section 11 of the rivet core to move towards the rivet gun. As the rivet core 1 is pulled out, the rivet head 14 at one end of the crimping section 11 will compress the deformable part 21 of the rivet body 2. Under the action of the compressing force, the deformable part 21 will gradually expand and deform outward, tightly adhering to the surface of the target object. During this process, the sealant 15 on the surface of the crimping section 11 will be evenly distributed in the contact gap between the crimping section 11 and the deformable part 21 as the deformable part 21 is compressed, initially forming a sealing structure. At the same time, the straight teeth 16, through the concave or convex structure, engage with the deformable part 21 when it deforms, increasing friction and mechanical resistance, preventing the rivet core 1 from loosening circumferentially, and ensuring the long-term stability of the connection.

[0033] When the rivet gun continues to pull, and the tension of the rivet core 1 reaches the preset value, the fragile ring groove at the connection between the crimp section 11 and the smooth section 12 will break due to concentrated stress. After breakage, the smooth section 12 and the threaded section 13 held by the rivet gun will completely separate from the crimp section 11. At this time, the crimp section 11 is completely encased in the deformed part 21 after deformation, the sealant 15 fills all gaps, the rivet cap 23 is tightly attached to the surface of the target object, and the entire rivet completes the fastening and sealing of the target object.

[0034] This utility model is an open-type stainless steel blind rivet with a sealing effect. By applying sealant to the surface of the crimping section, the sealant will evenly fill the contact gap between the crimping section and the deformed part as the rivet body deforms during riveting. Secondly, a sealant or sealing ring is set on the side of the rivet body cap that is in contact with the target object. The double structure can effectively prevent moisture, dust or fluid from seeping in, and can be adapted to humid, dusty and other scenarios where sealing is required.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An open-type stainless steel blind rivet with a sealing effect, characterized in that, include: The nail core (1) includes a crimping section (11), a nail head (14) connected to one end of the crimping section (11), a smooth rod section (12) and a threaded section (13) connected to the other end of the crimping section (11). The surface of the crimping section (11) is provided with straight teeth (16) and coated with sealant (15). The rivet body (2) includes a deformable part (21), a connecting part (22) connecting the deformable part (21) and a rivet cap (23). The deformable part (21), the connecting part (22) and the rivet cap (23) are fitted onto the crimping section (11). The side of the rivet cap (23) adjacent to the connecting part (22) is provided with sealant (15) or a sealing ring.

2. The open-type stainless steel blind rivet with sealing effect according to claim 1, characterized in that: The sealant (15) is applied from one end of the crimping section (11) to the other end, and is adjacent to the nail head (14) and the smooth rod section (12) respectively.

3. The open-type stainless steel blind rivet with sealing effect according to claim 1, characterized in that: The straight tooth (16) is formed by recessing or protruding from the surface of the crimping section (11), extending axially from one end of the crimping section (11) along the surface of the crimping section (11) to the other end, and is adjacent to the nail head (14) and the smooth rod section (12) respectively.

4. The open-type stainless steel blind rivet with sealing effect according to claim 3, characterized in that: The number of straight teeth (16) is only one pair, and the pair of straight teeth (16) are arranged in parallel relative to each other.

5. The open-type stainless steel blind rivet with sealing effect according to claim 1, characterized in that: The rivet body (2) has a mounting through hole (24), which passes through the deformed part (21), the connecting part (22), and the rivet body cap (23) in sequence. The diameter of the mounting through hole (24) is larger than the diameter of the crimping section (11), the smooth rod section (12), and the threaded section (13), and smaller than the diameter of the nail cap (14).

6. The open-type stainless steel blind rivet with sealing effect according to claim 5, characterized in that: When the nail core (1) and the rivet body (2) are connected, the crimping section (11), the smooth rod section (12) and the threaded section (13) pass through the mounting through hole (24), and the nail head (14) abuts against the end face of the deformed part (21).

7. The open-type stainless steel blind rivet with sealing effect according to claim 1, characterized in that: The strength of the deformable part (21) is less than that of the connecting part (22).

8. The open-type stainless steel blind rivet with sealing effect according to claim 1, characterized in that: The diameter of the nail head (14) is larger than the diameter of the crimping section (11).

9. The open-type stainless steel blind rivet with sealing effect according to claim 1, characterized in that: The connection between the crimping section (11) and the smooth rod section (12) is provided with a breakable ring groove.

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