High-pressure-resistant sealing riveting bolt
By designing high-pressure resistant sealing riveting bolts for the support surface and rod structure, the problem of poor sealing performance under high pressure was solved, achieving high sealing performance and stable fastening effect.
Patent Information
- Application Number
- CN202520666623.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-04-09
AI Technical Summary
Existing high-pressure resistant sealing bolts have poor sealing performance under high-pressure conditions and are difficult to pass the 0.5MPa@30s test.
A high-pressure resistant sealing riveting bolt is designed, including a support surface and a rod body. The support surface has a recess in the center of the left side, and the rod body is fixed on the left side. The support surface has an annular protrusion and a radiating protrusion on the left side. The surface of the rod body has a spiral strip and a threaded groove. The support surface has an arc-shaped surface and a limiting block on the right side. The limiting block has a folding piece and a cutting point. The folding piece can cover the washer to prevent displacement.
It achieves high sealing performance, prevents gas leakage, improves tightening ability, avoids bolt loosening, and enhances bolt stability and fixing effect.
Smart Images
Figure CN223781848U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to riveting bolt technical field, concretely is a kind of high-pressure sealed riveting bolt. BACKGROUND
[0002] High-pressure sealed riveting bolt is a kind of structure used to rivet technology to combine fastener body, and the fastener is riveted on the accessory of component, and riveting bolt is generally applied to the component of industrial metal plane sheet metal profile etc.
[0003] High-pressure sealed riveting bolt is applied to the scene needing special sealing, such as battery pack, energy storage box, high-pressure container.
[0004] When using installation, the shank end of bolt needs to be extruded into component base material by stamping or other ways, and then metal sheet material is extruded back to the gap between bolt to generate interference connection, and the sealing performance of the riveting bolt of the prior art is poor in high-pressure scene, and it is difficult to pass the test of air 0.5MPa@30s.
[0005] Now, a new type of high-pressure sealed riveting bolt is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0006] The utility model aims at providing a kind of high-pressure sealed riveting bolt to solve the problem of poor sealing performance in the above background art.
[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of high-pressure sealed riveting bolt, including support surface and stem, the left side center of support surface is provided with recess, and the left side of recess is fixed with stem, the left side of support surface is fixed with annular protrusion, and the outer edge of annular protrusion is arranged with scattering protrusion, and groove is formed between scattering protrusion.
[0008] As a further technical scheme of the utility model, helical strip is fixed between the left and right of the surface of stem, and thread groove is formed between helical strip and stem.
[0009] As a further technical scheme of the utility model, the pitch and angle of scattering protrusion are same, and scattering protrusion is located on the two sides adjacent to groove.
[0010] As a further technical scheme of the utility model, the right side of stem is fixed with convex ring, and annular groove is formed between convex ring and recess.
[0011] As a further technical scheme of the utility model, convex ring and stem are arranged in concentric circles, and convex ring is located on the left side outside recess.
[0012] As a further technical scheme of the utility model, the right surface of the supporting surface is provided with an arc surface, four groups of limiting blocks are fixed on the right side of the arc surface, a clamping groove is formed between the limiting blocks, a folding piece is fixed in the clamping groove, a cutting point is arranged at the center of the folding piece, and an opening can be formed at the cutting point.
[0013] As a further technical scheme of the utility model, the cutting point can separate the folding piece into two pieces, and the folding piece can be attached to the arc surface.
[0014] As a further technical scheme of the utility model, the limiting blocks are symmetrically attached to the two sides of the folding piece, and the opening can be enlarged when the folding piece is flattened.
[0015] Compared with the prior art, the utility model has the beneficial effects that the high-pressure-resistant sealing riveting bolt not only realizes the sealing effect, firmly fixes the bolt, and is convenient for fixing the washer.
[0016] (1) The annular protrusion is fixed on the left side of the supporting surface, when the fastener is riveted on the interface, the annular protrusion is completely embedded in the interface, the gas or liquid is blocked from flowing from the head to the rod, the bolt is prevented from being passively rotated when the assembly is assembled and screwed, the gas leakage is avoided during riveting, the high sealing performance of the riveting structure is maintained, and the stability of the riveting structure is high.
[0017] (2) The recess is arranged at the center of the left side of the supporting surface, the recess of the supporting surface can be pressed into the mold for a certain time during riveting of the fastener, the interface material is forced to flow and is extruded into the groove, the convex ring on the surface of the rod body is located outside the recess, the bolt can be firmly fixed on the interface by the convex ring, the bolt is prevented from falling off during fastening and installation, the fastening capacity is improved, the process influencing factors are few, and the stability is high.
[0018] (3) The folding piece is fixed in the clamping groove, the washer is arranged on the surface of the arc surface and is sleeved outside each folding piece, the folding piece is bent in advance during pressing of the supporting surface, the folding piece is cracked from the cutting point at the center in this process, and then covers the washer, the supporting surface is continuously pressed until it enters the inside, the displacement of the washer can be avoided, and the overall sealing effect of the bolt is improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a front view of the utility model;
[0020] Figure 2 It is a left view of the utility model;
[0021] Figure 3 It is a front view of the utility model;
[0022] Figure 4 The right angle structure schematic view of the utility model.
[0023] In the figure: 1, support surface; 2, scattering protrusion; 3, groove; 4, convex ring; 5, spiral strip; 6, thread groove; 7, rod body; 8, annular groove; 9, annular protrusion; 10, recess; 11, arc surface; 12, folding piece; 13, cutting point; 14, limiting block; 15, opening; 16, clamping groove. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0025] Please refer to Figures 1-4 The utility model provides an embodiment: a high pressure resistant sealed riveting bolt, including support surface 1 and rod body 7, the left side center of support surface 1 is provided with recess 10, and the left side of recess 10 is fixed with rod body 7, the left side of support surface 1 is fixed with annular protrusion 9, and the outer edge of annular protrusion 9 is arranged with scattering protrusion 2, and groove 3 is formed between scattering protrusion 2;
[0026] The left and right between the surface of rod body 7 is fixed with spiral strip 5, and thread groove 6 is formed between spiral strip 5 and rod body 7, the interval and angle of scattering protrusion 2 are same, and scattering protrusion 2 is located on the adjacent two sides of groove 3;
[0027] Specifically, as Figure 1 , Figure 2 and Figure 3 shown, when fastener riveting is on the interface, this annular protrusion 9 will be completely embedded in the interface, and the gas or liquid is blocked from the head to the rod, because a plurality of scattering protrusions 2 are arranged at annular protrusion 9, the bolt can be prevented from passive rotation when the assembly is assembled and screwed, and gas leakage can be avoided during riveting, and the high sealing performance of itself is maintained.
[0028] The right side of rod body 7 is fixed with convex ring 4, and annular groove 8 is formed between convex ring 4 and recess 10, convex ring 4 and rod body 7 are arranged in concentric circles, and convex ring 4 is located on the left side outside recess 10;
[0029] Specifically, as Figure 1 , Figure 2 and Figure 3As shown, the recess 10 at the support surface 1 can be forced into the groove by the mold pressing time during fastener riveting, and the interface material is forced to flow and be squeezed into this groove. The protruding ring 4 on the surface of the rod body 7 is located outside the recess 10. This protruding ring 4 can firmly fix the bolt on the interface, prevent the bolt from falling off during the fastening installation process, and improve the fastening ability.
[0030] The right surface of the support surface 1 is provided with an arc-shaped surface 11, and four sets of limiting blocks 14 are fixed on the right side of the arc-shaped surface 11. A slot 16 is formed between the limiting blocks 14. A folding piece 12 is fixed in the slot 16, and a cutting point 13 is provided at the center of the folding piece 12. An opening 15 can be formed at the cutting point 13.
[0031] Cutting point 13 can divide the folding piece 12 into two pieces. The folding piece 12 can be attached to the arc surface 11. The limiting block 14 is symmetrically attached to both sides of the folding piece 12. When the folding piece 12 is flattened, the opening 15 can be enlarged.
[0032] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the washer is placed around the surface of the arc-shaped surface 11 and fitted onto the outside of each folded piece 12. When pressing the support surface 1, the folded pieces 12 are pre-bent. During this process, the folded pieces 12 will split from the central cutting point 13 and then cover the washer. The support surface 1 is pressed until it enters the interior, which can prevent the washer from shifting.
[0033] Working principle: When using this utility model, the washer is first placed around the arc surface 11 and sleeved on the outside of each folding piece 12. When pressing the support surface 1, the folding piece 12 is pre-bent. During this process, the folding piece 12 will split from the central cutting point 13 and then cover the washer. The support surface 1 is pressed until it enters the interface. When the fastener is riveted to the interface, the annular protrusion 9 will be completely embedded in the interface, blocking the flow of gas or liquid from the head to the rod. Because the annular protrusion 9 is provided with multiple scattering protrusions 2, it can prevent the bolt from being passively rotated when the nut is tightened during assembly. It can also prevent gas leakage during riveting. The recess 10 at the support surface 1 can be forced into the groove by the mold pressing time during fastener riveting. The convex ring 4 on the surface of the rod 7 is located outside the recess 10. This convex ring 4 can firmly fix the bolt to the interface, prevent the bolt from falling off during the fastening installation process, and improve the fastening ability.
[0034] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.
Claims
1. A high pressure resistant sealed rivet bolt comprising a support face (1) and a shank (7), characterized in that: The left center of the support surface (1) is provided with a recess (10), and the left side of the recess (10) is fixed with a rod body (7); the left side of the support surface (1) is fixed with an annular protrusion (9), and the outer edge of the annular protrusion (9) is arranged with scattering protrusions (2); the scattering protrusions (2) are arranged between the grooves (3).
2. A high pressure resistant sealed press-in bolt according to claim 1, characterized in that: The left and right sides of the surface of the rod body (7) are fixed with spiral strips (5), and the spiral strips (5) and the rod body (7) form threaded grooves (6) therebetween.
3. A high pressure resistant sealed press-in bolt according to claim 1, characterized in that: The scattering protrusions (2) have the same spacing and angle, and the scattering protrusions (2) are located on the two sides adjacent to the groove (3).
4. A high pressure resistant sealed press-in bolt according to claim 1, characterized in that: The right side of the rod body (7) is fixed with a convex ring (4), and the convex ring (4) and the recess (10) form an annular groove (8) therebetween.
5. A high pressure resistant sealed press-in bolt according to claim 4, characterized in that: The convex ring (4) and the rod body (7) are arranged in concentric circles, and the convex ring (4) is located on the left side outside the recess (10).
6. A high pressure resistant sealed press bolt as claimed in claim 1, wherein: The right surface of the support surface (1) is provided with an arc surface (11), and the right side of the arc surface (11) is fixed with four sets of limiting blocks (14), and the limiting blocks (14) form clamping grooves (16) therebetween; the clamping grooves (16) are fixed with folding pieces (12), and the center of the folding pieces (12) is provided with cutting points (13); the cutting points (13) can form openings (15).
7. A high pressure resistant sealed press bolt according to claim 6, characterized in that: The cutting point (13) can separate the folding piece (12) into two pieces, and the folding piece (12) can be attached to the arc surface (11).
8. A high pressure resistant sealed press bolt according to claim 6, characterized in that: The limiting blocks (14) are symmetrically attached to the two sides of the folding piece (12), and the folding piece (12) can expand the opening (15) when it is flattened.