Lengthening rod opening type self-plugging rivet
By designing an extended rod open-type blind rivet, and utilizing a longer rivet rod and locking ring structure, the instability of existing rivets in thicker materials or with large connection distances is solved, achieving a stable and sealed connection effect.
Patent Information
- Application Number
- CN202422164066.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-09-04
AI Technical Summary
Existing rivets are prone to connection instability and affect tightness when dealing with thicker materials or when a large connection distance is required.
An extended-rod open-type blind rivet has been designed, including a rivet body, a rivet end cap, a rivet rod, an expansion head, a rivet sleeve, a locking ring, and a spring block. The longer rivet rod and the locking ring work together to ensure the stability and sealing of the connection.
It achieves a stable connection in situations involving thicker materials or large connection distances, enhancing the strength and reliability of the connection and adapting to the fastening needs of different materials.
Smart Images
Figure CN223767871U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blind rivet technology, specifically to an extended rod open-type blind rivet. Background Technology
[0002] Open-type blind rivets are fasteners that allow the rivet core to fall into the equipment through slight hammering or pressing, thus completing the riveting process. They are suitable for riveting workpieces with a solid material base and a certain thickness.
[0003] Existing rivets typically involve a specific operation to drop the rivet core during the connection process. Due to the length of the rivet shank, this can easily lead to instability in the connection when dealing with thicker materials or situations requiring a larger connection distance, thus affecting the tightness of the connection. Utility Model Content
[0004] The purpose of this utility model is to provide an extended-rod open-type blind rivet to solve the problem mentioned in the background art, where the length of the rivet rod easily leads to connection instability when dealing with thicker materials or situations requiring a larger connection distance, thus affecting the tightness of the connection. To achieve the above objective, this utility model provides the following technical solution: an extended-rod open-type blind rivet, comprising a rivet body, a rivet end cap fixedly connected to the top of the rivet body, the rivet end cap having a threaded interior, a limiting hole formed at the top of the rivet end cap, a rivet rod fixedly connected inside the limiting hole, a sealing ring fixedly connected to the bottom of the rivet rod, and an expansion head fixedly connected to the top of the rivet rod. By installing the rivet rod, the rivet can be used with a longer rivet rod than ordinary blind rivets, allowing it to be used with thicker materials or situations requiring a larger connection distance, making it adaptable to fastening connections between different materials, thereby giving the rivet wide applicability.
[0005] More preferably, the expansion head is fitted with a rivet sleeve, the top of the rivet sleeve is fixedly connected to a top plate, the bottom of the rivet sleeve has a groove, and a locking ring is fixedly connected inside the groove. The locking ring is fitted into the groove so that when the rivet is pulled in and out, the locking ring will not deform and will lock the rivet rod and the rivet sleeve, thereby ensuring the stability of the connection. At the same time, the locking ring fills the groove at the end of the rivet sleeve to form a safety lock, making the rivet more stable in use.
[0006] In a further preferred embodiment, a necking groove is provided on one side of the rivet shank, and a shearing ring is fixedly connected inside the necking groove. The outer wall of the shearing ring is provided with a protective layer. By installing the necking groove and the shearing ring, they work together during the riveting process to ensure the firmness and reliability of the connection. The necking groove allows the rivet to be installed on one side, that is, the connection can be completed by simply inserting the rivet from one side of the riveting workpiece. The shearing ring, through compression, causes the rivet sleeve to drill into the inner hole of the rivet sleeve, forming a blind end upset head. This causes the rivet sleeve to expand during compression, generating a clamping force with the structure, thereby enhancing the stability of the connection.
[0007] More preferably, the internal part of the nail sleeve is movably connected to an elastic block, which is movably connected to the outside of the expansion head. The outer wall of the nail sleeve is provided with an anti-corrosion layer. By installing the elastic block inside the nail sleeve, the elastic block can be deformed and filled in conjunction with the locking ring under the force inside the nail sleeve, thereby improving the stability and sealing of the connection.
[0008] More preferably, a top piece block is fixedly connected to the upper surface of the top piece, and wear-resistant layers are respectively provided on the upper surfaces of the top piece and the top piece block. By providing wear-resistant layers on the upper surfaces of the top piece and the top piece block, the strength and rigidity of the top piece can be increased during use, ensuring that a stable reference surface for riveting force can be provided during the riveting process, while improving the wear resistance and service life of the top piece.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] In this invention, by installing a rivet rod, the rivet can be used in thicker materials or in situations requiring a larger connection distance, thanks to the longer rivet rod compared to ordinary blind rivets. This allows the rivet to adapt to fastening connections between different materials, thus making it widely applicable.
[0011] In this invention, a locking ring is fitted into the groove, so that the locking ring will not deform when the rivet is pulled in and out, and at the same time locks the rivet rod and the rivet sleeve, thereby ensuring the stability of the connection. At the same time, the locking ring fills the groove at the end of the rivet sleeve to form a safety lock, making the rivet more stable during use.
[0012] In this invention, by installing an elastic block inside the nail sleeve, the elastic block can be deformed and filled in conjunction with the force on the locking ring inside the nail sleeve, thereby improving the stability and sealing of the connection. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0014] Figure 2 This utility model Figure 1Enlarged 3D structural diagram at point A;
[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0016] Figure 4 This is a schematic cross-sectional view of the present invention.
[0017] Figure 5 This utility model Figure 4 Enlarged cross-sectional structural diagram at point B.
[0018] In the diagram: 1. Rivet body; 2. Rivet end cap; 3. Thread; 4. Limiting hole; 5. Rivet shank; 6. Sealing ring; 7. Expansion head; 8. Rivet sleeve; 9. Top plate; 10. Groove; 11. Locking ring; 12. Neck break groove; 13. Shear ring; 14. Protective layer; 15. Elastic block; 16. Anti-corrosion layer; 17. Top plate block; 18. Wear-resistant layer. Detailed Implementation
[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1 - Figure 5 This utility model provides a technical solution: an extended rod open-type blind rivet, including a rivet body 1, a rivet end cap 2 fixedly connected to the top of the rivet body 1, a thread 3 provided inside the rivet end cap 2, a limiting hole 4 opened at the top of the rivet end cap 2, a rivet rod 5 fixedly connected inside the limiting hole 4, a sealing ring 6 fixedly connected to the bottom of the rivet rod 5, and an expansion head 7 fixedly connected to the top of the rivet rod 5. By installing the rivet rod 5, in use, the rivet rod 5 is fixed to the top of the rivet end cap 2 through the limiting hole 4, the rivet body 1 is inserted into the pre-drilled hole, the rivet rod 5 is inserted into the pull head of the rivet gun, and the rivet rod 5 is pulled by the pull head, causing displacement between the rivet rod 5 and the rivet sleeve 8. By using a rivet rod 5 that is longer than that of a regular blind rivet, the rivet rod 5 can be used in thicker materials or in situations requiring a larger connection distance.
[0021] In this embodiment, as Figure 3 , Figure 4 and Figure 5As shown, a rivet sleeve 8 is fitted onto the outside of the expansion head 7. A top plate 9 is fixedly connected to the top of the rivet sleeve 8. A groove 10 is provided at the bottom of the rivet sleeve 8. A locking ring 11 is fixedly connected inside the groove 10. The locking ring 11 fits into the groove 10, so that when the rivet rod 5 is riveted, the locking ring 11 will not deform and will lock the rivet rod 5 and the rivet sleeve 8, thereby ensuring the stability of the connection. At the same time, the locking ring 11 fills the groove 10 at the end of the rivet sleeve 8 to form a safety lock, making the rivet rod 5 more stable during use.
[0022] In this embodiment, as Figure 3 , Figure 4 and Figure 5 As shown, a necking groove 12 is provided on one side of the rivet rod 5. A shearing ring 13 is fixedly connected inside the necking groove 12. A protective layer 14 is provided on the outer wall of the shearing ring 13. By installing the necking groove 12 and the shearing ring 13, they work together during the riveting process to ensure the firmness and reliability of the connection. The necking groove 12 allows the rivet rod 5 to be constructed on one side, that is, the connection can be completed by simply inserting the rivet from one side of the riveting workpiece. The shearing ring 13, through compression, causes the rivet sleeve 8 to be drilled into the inner hole of the rivet sleeve 8, forming a blind end upset head. This causes the rivet sleeve 8 to expand during compression and generate clamping force with the structure.
[0023] In this embodiment, as Figure 4 As shown, an elastic block 15 is movably connected inside the nail sleeve 8. The elastic block 15 is movably connected to the outside of the expansion head 7. The outer wall of the nail sleeve 8 is provided with an anti-corrosion layer 16. By installing the elastic block 15 inside the nail sleeve 8, the elastic block 15 can deform and fill in conjunction with the locking ring 11 under the force inside the nail sleeve 8, thereby improving the stability and sealing of the connection.
[0024] In this embodiment, as Figure 1 , Figure 3 and Figure 4 As shown, a top piece 17 is fixedly connected to the upper surface of the top piece 9. Wear-resistant layers 18 are respectively provided on the upper surfaces of the top piece 9 and the top piece 17. By providing wear-resistant layers 18 on the upper surfaces of the top piece 9 and the top piece 17, the strength and rigidity of the top piece 9 can be increased during use, ensuring that a stable reference surface for riveting force can be provided during the riveting process, while also improving the wear resistance and service life of the top piece 9.
[0025] The usage and advantages of this utility model: The extended rod open-type blind rivet operates as follows:
[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in use, first insert the rivet body 1 into the pre-drilled hole, then put the rivet rod 5 into the pull head of the rivet gun, and then start the rivet gun so that the pull head starts to pull the rivet rod 5, causing relative displacement between the rivet rod 5 and the rivet sleeve 8. The rivet sleeve 8 is fixed, and the shearing ring 13 on the rivet rod 5 squeezes the rivet sleeve 8 and drills into the inner hole of the rivet sleeve 8, forming a blind end upset head, and causing the rivet sleeve 8 to expand and generate clamping force with the structure. At the same time, as the pull head continues to pull, the shearing ring 13 is sheared off from the rivet rod 5 as a whole, so that the rivet rod 5 and the locking ring 11 on the rivet rod 5 can continue to move through the rivet sleeve 8. When the locking ring 11 touches the top plate 9, the locking ring 11 is compressed and deformed, forming a "safety lock" that fills the groove at the end of the rivet sleeve 8, ensuring that the rivet rod 5 and the rivet sleeve 8 are completely locked together.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A lengthened open core rivet comprising a rivet body (1) characterised in that: The top of the rivet body (1) is fixedly connected with a rivet end cap (2), the inside of the rivet end cap (2) is provided with a thread (3), the top of the rivet end cap (2) is provided with a limiting hole (4), the inside of the limiting hole (4) is fixedly connected with a rivet rod (5), the bottom of the rivet rod (5) is fixedly connected with a sealing ring (6), and the top of the rivet rod (5) is fixedly connected with an expansion head (7).
2. The open-end, core-pulling rivet of claim 1, wherein: The outside of the expansion head (7) is sleeved with a nail sleeve (8), the top of the nail sleeve (8) is fixedly connected with a top sheet (9), the bottom of the nail sleeve (8) is provided with a groove (10), and the inside of the groove (10) is fixedly connected with a lock ring (11).
3. The open-end, core-pulling rivet of claim 1, wherein: One side of the rivet rod (5) is provided with a neck breaking groove (12), the inside of the neck breaking groove (12) is fixedly connected with a shearing ring (13), and the outer wall of the shearing ring (13) is provided with a protective layer (14).
4. The open-end, core-pulling rivet of claim 2, wherein: The inside of the nail sleeve (8) is movably connected with an elastic block (15), the elastic block (15) is movably connected outside the expansion head (7), and the outer wall of the nail sleeve (8) is provided with a corrosion-resistant layer (16).
5. The open-end, core-pulling rivet of claim 2, wherein: The upper surface of the top sheet (9) is fixedly connected with a top sheet block (17), and the upper surfaces of the top sheet (9) and the top sheet block (17) are respectively provided with wear-resistant layers (18).