Stainless steel flange nut

Abstract

The utility model relates to the technical field of flange nuts, and discloses a stainless steel flange nut which comprises a nut body, a flange plate is arranged at the bottom of the nut body, an anti-skid layer is arranged at the bottom of the flange plate, a sealing ring is arranged at the top of the nut body, and a first sealing groove is formed in the sealing ring. According to the stainless steel flange nut, the second sealing gasket is tightly attached to the surface of a workpiece, so that the second sealing gasket seals the end, close to the workpiece, of the joint of the nut and the bolt, and the sealing cover is inserted into the first sealing groove, so that the sealing cover is matched with the first sealing gasket to seal the end, away from the workpiece, of the joint of the nut and the bolt; according to the flange nut and bolt sealing device, the connecting position between a flange nut and a bolt can be sealed, the connecting position between the nut and the bolt is prevented from being exposed in a humid or corrosive environment for a long time, the situation that the bolt is corroded is prevented, and the connecting strength between the nut and the bolt is guaranteed; and the effect of stability of connection between the nut and the bolt is improved.

Description

Technical Field

[0001] This application relates to the field of flange nut technology, specifically a stainless steel flange nut. Background Technology

[0002] Flange nuts and regular hexagonal nuts have basically the same dimensions and thread specifications. However, unlike regular hexagonal nuts, flange nuts have a washer and nut integrated, and have anti-slip teeth on the bottom. This increases the surface area contact between the nut and the workpiece, making it more secure and with greater tensile strength than a combination of a regular nut and washer.

[0003] Existing flange nuts cannot seal the connection between the flange nut and bolt during use. The connection between the nut and bolt is exposed to a humid or corrosive environment, which can easily cause corrosion to the bolt, leading to a decrease in connection strength and affecting the stability of the connection between the nut and bolt. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a stainless steel flange nut that can seal the connection between the flange nut and bolt, preventing the connection from being exposed to a humid or corrosive environment for extended periods, thus preventing bolt corrosion, ensuring the connection strength between the nut and bolt, and improving the stability of the connection. This solves the problem that existing flange nuts cannot seal the connection between the flange nut and bolt during use, leaving the connection exposed to a humid or corrosive environment, which easily leads to bolt corrosion, reduced connection strength, and compromised stability of the connection.

[0005] To achieve the aforementioned goal of sealing the connection between the flange nut and bolt, preventing long-term exposure of the connection to a humid or corrosive environment, thus preventing bolt corrosion, ensuring the connection strength between the nut and bolt, and improving the stability of the connection, this application provides the following technical solution: A stainless steel flange nut, comprising a nut, a flange plate at the bottom of the nut, an anti-slip layer at the bottom of the flange plate, a sealing ring at the top of the nut, a first sealing groove inside the sealing ring, a first sealing gasket on the bottom wall of the first sealing groove, a sealing cap inserted into the first sealing groove, a second sealing groove at the bottom of the flange plate extending downward and penetrating the anti-slip layer, a second sealing gasket inside the second sealing groove, wherein the nut, flange plate, and anti-slip layer are all made of stainless steel.

[0006] The above solution involves placing the second sealing gasket tightly against the surface of the workpiece to seal the end of the nut-bolt connection closest to the workpiece. A sealing cap is then inserted into the first sealing groove, working in conjunction with the first sealing gasket to seal the end of the nut-bolt connection furthest from the workpiece. This achieves a seal between the flange nut and bolt, preventing long-term exposure to humid or corrosive environments, thus preventing bolt corrosion, ensuring the connection strength between the nut and bolt, and improving the stability of the connection.

[0007] Furthermore, a guide cap is provided on the top of the nut, the top of the guide cap is arc-shaped, and the arc surface of the guide cap extends to the edge of the top of the nut.

[0008] With the above solution, the guide cover allows the socket wrench to be easily placed on the outside of the nut via the guide sleeve on the top arc surface of the guide cover, making it easy to connect the socket wrench to the nut without having to carefully align the socket wrench with the nut.

[0009] Furthermore, the bottom edge of the inner wall in the middle of the flange is provided with a rounded corner.

[0010] The above solution guides the nut as it is placed on the bolt by using the rounded corners on the flange, making it easier and smoother to put the nut on the bolt and improving the efficiency of nut installation and tightening.

[0011] Furthermore, the top of the sealing cap is provided with a screw cap, which is hexagonal in shape.

[0012] The above design allows the hexagonal screw cap to be rotated using a wrench or manual tool, facilitating its installation and removal. Furthermore, the hexagonal structure of the screw cap is compatible with standard tools, enhancing ease of operation and versatility.

[0013] Furthermore, the sidewall of the first sealing groove is provided with a plurality of L-shaped limiting grooves, the inner walls of the plurality of L-shaped limiting grooves are slidably connected to the outer surface of the middle part of a plurality of limiting blocks, and the plurality of limiting blocks are arranged in a ring array on the outer surface of the middle part of the sealing cover.

[0014] The above design, which combines the L-shaped limiting groove and the limiting block, ensures that the sealing cap can be accurately positioned when inserted into the first sealing groove and is locked in place after rotation. This prevents the sealing cap from loosening due to vibration or external force during use, thus ensuring the stability of the sealing structure.

[0015] Furthermore, the longitudinal side of the L-shaped limiting groove extends to the opening of the first sealing groove, the lateral side height of the L-shaped limiting groove is adapted to the height of the first sealing gasket, and the size of the L-shaped limiting groove is adapted to the size of the limiting block.

[0016] The design of extending the longitudinal side of the L-shaped limiting groove to the opening of the first sealing groove facilitates the insertion of the limiting block. The matching of the height of the transverse side with the height of the first sealing gasket ensures that the sealing cover can uniformly compress the first sealing gasket after rotation and snapping, forming a reliable sealing effect. The matching of the size of the L-shaped limiting groove and the limiting block ensures a tight fit between the limiting block and the L-shaped limiting groove, preventing loosening.

[0017] Furthermore, an anti-slip strip is provided in the mounting groove opened on the inner wall of the internal thread of the nut, and the anti-slip strip is made of rubber anti-slip material.

[0018] The above design increases the friction between the bolt and nut threads, preventing the bolt from loosening under vibration or external force, thus improving the stability of the connection between the nut and bolt. The rubber anti-slip strip has good elasticity and wear resistance, meeting the needs of long-term use.

[0019] Furthermore, both the first and second sealing gaskets are made of deformable rubber material. The normal thickness of the second sealing gasket is greater than the height of the second sealing groove, and the bottom surface of the second sealing gasket is located below the anti-slip layer under normal conditions.

[0020] Through the above scheme, the first and second sealing gaskets made of deformable rubber material can deform according to the shape of the contact surface, thereby forming a tight sealing effect. The normal thickness design of the second sealing gasket ensures that it can fully fill the gap between the second sealing groove and the workpiece surface after compression, ensuring full contact between the second sealing gasket and the workpiece surface and improving sealing reliability.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This stainless steel flange nut uses a second sealing gasket that is tightly attached to the surface of the workpiece to seal the end of the nut-bolt connection closest to the workpiece. A sealing cap is inserted into a first sealing groove, which, in conjunction with the first sealing gasket, seals the end of the nut-bolt connection furthest from the workpiece. This achieves a seal between the flange nut and bolt, preventing long-term exposure to humid or corrosive environments and thus preventing bolt corrosion. This ensures the connection strength between the nut and bolt and improves the stability of the connection. Attached Figure Description

[0023] Figure 1This is a three-dimensional structural diagram of this application;

[0024] Figure 2 This is a schematic diagram of the exploded structure of this application;

[0025] Figure 3 This is a three-dimensional sectional view of the structure of this application;

[0026] Figure 4 This is a schematic diagram of the front sectional view of the structure of this application;

[0027] Figure 5 This is an exploded structural diagram of the flange and the second sealing gasket in this application;

[0028] Figure 6 This is a schematic diagram showing the location of the L-shaped limiting groove in this application.

[0029] In the picture:

[0030] 1. Nut; 2. Flange; 3. Anti-slip layer; 4. Sealing ring; 5. First sealing groove; 6. First sealing gasket; 7. Sealing cap; 8. Second sealing groove; 9. Second sealing gasket; 10. L-shaped limiting groove; 11. Limiting block; 12. Anti-slip strip; 13. Guide cap; 14. Rounded corner; 15. Tightening cap. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a stainless steel flange nut includes a nut 1, a flange 2 at the bottom of the nut 1, an anti-slip layer 3 at the bottom of the flange 2, a sealing ring 4 at the top of the nut 1, a first sealing groove 5 inside the sealing ring 4, a first sealing gasket 6 at the bottom wall of the first sealing groove 5, a sealing cap 7 inserted into the first sealing groove 5, a second sealing groove 8 at the bottom of the flange 2, the second sealing groove 8 extending downward and penetrating through the anti-slip layer 3, and a second sealing gasket 9 inside the second sealing groove 8. The nut 1, flange 2, and anti-slip layer 3 are all made of stainless steel.

[0033] Please see Figure 1 , Figure 2 and Figure 4The top of the nut 1 is provided with a guide cover 13. The top of the guide cover 13 is arc-shaped and the arc surface of the guide cover 13 extends to the edge of the top of the nut 1. The guide cover 13 allows the socket wrench to be easily placed on the outside of the nut 1 through the guide arc surface of the top of the guide cover 13. The socket wrench can be easily connected to the nut 1 without carefully aligning the socket wrench with the nut 1.

[0034] Please see Figure 3 , Figure 4 and Figure 5 The bottom edge of the inner wall of the flange 2 is provided with a rounded corner 14. The rounded corner 14 on the flange 2 can guide the nut 1 when it is put on the bolt, so that the nut 1 can be put on the bolt easily and smoothly, which improves the efficiency of the installation and tightening of the nut 1.

[0035] Please see Figure 1 , Figure 2 and Figure 3 The top of the sealing cover 7 is provided with a screw cap 15, which is hexagonal. The hexagonal screw cap 15 makes it easy to rotate the sealing cover 7 with a wrench or hand tool, which facilitates the installation and removal of the sealing cover 7. At the same time, the hexagonal structure of the screw cap 15 can be adapted to standard tools, improving the convenience and versatility of operation.

[0036] Please see Figure 2 , Figure 4 and Figure 6 The side wall of the first sealing groove 5 is provided with multiple L-shaped limiting grooves 10. The inner wall of the multiple L-shaped limiting grooves 10 is slidably connected to the outer surface of the middle part of multiple limiting blocks 11. The multiple limiting blocks 11 are arranged in a ring array on the outer surface of the middle part of the sealing cover 7. The matching design of the L-shaped limiting grooves 10 and the limiting blocks 11 can ensure that the sealing cover 7 can be accurately positioned when inserted into the first sealing groove 5, and can be locked after rotation, preventing the sealing cover 7 from loosening due to vibration or external force during use, thereby ensuring the stability of the sealing structure.

[0037] Please see Figure 2 , Figure 4 and Figure 6 The longitudinal side of the L-shaped limiting groove 10 extends to the opening of the first sealing groove 5. The height of the transverse side of the L-shaped limiting groove 10 is adapted to the height of the first sealing gasket 6. The size of the L-shaped limiting groove 10 is adapted to the size of the limiting block 11. The design of the longitudinal side of the L-shaped limiting groove 10 extending to the opening of the first sealing groove 5 facilitates the insertion of the limiting block 11. The adaptation of the transverse side height to the height of the first sealing gasket 6 ensures that the sealing cover 7 can uniformly compress the first sealing gasket 6 after rotation and snapping, forming a reliable sealing effect. The adaptation of the size of the L-shaped limiting groove 10 and the limiting block 11 ensures a tight fit between the limiting block 11 and the L-shaped limiting groove 10, preventing loosening.

[0038] Please see Figure 2 , Figure 3 and Figure 4 An anti-slip strip 12 is installed in the mounting groove on the inner wall of the internal thread of the nut 1. The anti-slip strip 12 is made of rubber and its design increases the friction between the bolt and the thread of the nut 1, preventing the bolt from loosening under vibration or external force, thereby improving the connection stability between the nut 1 and the bolt. The rubber anti-slip strip 12 has good elasticity and wear resistance, and can meet the needs of long-term use.

[0039] Please see Figure 3 , Figure 4 and Figure 5 Both the first sealing gasket 6 and the second sealing gasket 9 are made of deformable rubber. The normal thickness of the second sealing gasket 9 is greater than the height of the second sealing groove 8. The bottom surface of the second sealing gasket 9 is located below the anti-slip layer 3 under normal conditions. The first sealing gasket 6 and the second sealing gasket 9, made of deformable rubber, can deform according to the shape of the contact surface, thereby forming a tight sealing effect. The normal thickness design of the second sealing gasket 9 ensures that it can fully fill the gap between the second sealing groove 8 and the workpiece surface after compression, ensuring full contact between the second sealing gasket 9 and the workpiece surface and improving the sealing reliability.

[0040] In this embodiment, a stainless steel flange nut is sealed by a second sealing gasket 9 tightly attached to the surface of the workpiece. The second sealing gasket 9 seals the end of the nut-bolt connection near the workpiece. A sealing cap 7 is inserted into the first sealing groove 5, which, together with the first sealing gasket 6, seals the end of the nut-bolt connection away from the workpiece. This achieves a seal between the flange nut 1 and the bolt, preventing the connection from being exposed to a humid or corrosive environment for a long time, thus preventing bolt corrosion and ensuring the connection strength and stability between the nut 1 and the bolt.

[0041] The working principle of the above embodiment is as follows: Guided by the rounded corner 14, the nut 1 is initially screwed onto the outer surface of the bolt. Using a socket wrench, guided by the arc surface of the guide cover 13, the socket wrench is placed on the outside of the nut 1. The socket wrench drives the nut 1 to rotate on the bolt, causing the nut 1 to push the anti-slip layer 3 tightly against the surface of the workpiece through the flange 2. When the nut 1 is tightened, the second sealing gasket 9 is deformed and tightly adhered to the surface of the workpiece due to the pressure of the workpiece surface, sealing the end of the nut 1 near the workpiece at the connection between the nut 1 and the bolt. After the nut 1 is installed, the limiting block 11 is aligned with the L-shaped... The opening on the longitudinal side of the limiting groove 10 allows the limiting block 11 to be inserted into the L-shaped limiting groove 10, thereby allowing the sealing cover 7 to be inserted into the first sealing groove 5. Continuously pushing the sealing cover 7 causes it to contact the first sealing gasket 6, moving the limiting block 11 to the transverse side of the L-shaped limiting groove 10. Using a tool, the screw cap 15 is rotated, causing the sealing cover 7 to rotate and slide the limiting block 11 into the inner wall of the transverse side of the L-shaped limiting groove 10. This allows the L-shaped limiting groove 10, in conjunction with the limiting block 11, to fix the position of the sealing cover 7, and the sealing cover 7, in conjunction with the first sealing gasket 6, to seal the end of the nut 1 and bolt connection away from the workpiece.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stainless steel flange nut comprising a nut (1), characterized in that: The bottom of the nut (1) is provided with a flange plate (2), the bottom of the flange plate (2) is provided with an anti-skid layer (3), the top of the nut (1) is provided with a sealing ring (4), the inside of the sealing ring (4) is provided with a first sealing groove (5), the bottom wall of the first sealing groove (5) is provided with a first sealing pad (6), the first sealing groove (5) is inserted with a sealing cover (7), the bottom of the flange plate (2) is provided with a second sealing groove (8), the second sealing groove (8) extends downward and penetrates the anti-skid layer (3), the inside of the second sealing groove (8) is provided with a second sealing pad (9), the materials of the nut (1), the flange plate (2) and the anti-skid layer (3) are stainless steel.

2. A stainless steel flange nut as claimed in claim 1, wherein: The top of the nut (1) is provided with a guide cover (13), the top of the guide cover (13) is arc-shaped, and the arc surface of the guide cover (13) extends to the edge of the top of the nut (1).

3. A stainless steel flange nut as claimed in claim 1, wherein: The bottom edge of the inner wall of the middle part of the flange plate (2) is provided with a rounded corner (14).

4. A stainless steel flange nut as claimed in claim 1, wherein: The top of the sealing cover (7) is provided with a screw cover (15), and the screw cover (15) is hexagonal.

5. A stainless steel flange nut as claimed in claim 1, wherein: The sidewall of the first sealing groove (5) is provided with a plurality of L-shaped limiting grooves (10), the inner walls of the plurality of L-shaped limiting grooves (10) are slidably connected with the middle outer surfaces of a plurality of limiting blocks (11), and the plurality of limiting blocks (11) are arranged in an annular array on the middle outer surface of the sealing cover (7).

6. A stainless steel flange nut as claimed in claim 5, wherein: The longitudinal edge of the L-shaped limiting groove (10) extends to the opening of the first sealing groove (5), the height of the transverse edge of the L-shaped limiting groove (10) is adapted to the height of the first sealing pad (6), and the size of the L-shaped limiting groove (10) is adapted to the size of the limiting block (11).

7. A stainless steel flange nut as claimed in claim 1, wherein: The inside thread wall of the nut (1) is provided with an anti-skid strip (12) in the mounting groove, and the anti-skid strip (12) is made of rubber anti-skid material.

8. A stainless steel flange nut as defined in claim 1, wherein: The first sealing pad (6) and the second sealing pad (9) are made of deformable rubber material, the normal thickness of the second sealing pad (9) is greater than the height of the second sealing groove (8), and the bottom surface of the second sealing pad (9) is below the anti-skid layer (3) in normal state.

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