Anti-corrosion nut

Abstract

The utility model discloses an anti-corrosion nut, which relates to the field of nuts and is characterized in that the anti-corrosion nut comprises a nut body, a protective shell used for wrapping the nut body is detachably mounted outside the nut body, the inner side wall of the protective shell is fully attached to the outer side wall of the nut body, and a plurality of clamping pieces are circumferentially arranged on the inner side wall of the protective shell. The outer side wall of the nut body is provided with a plurality of clamping grooves used for clamping the clamping pieces, and the clamping pieces are provided with limiting pieces used for preventing the clamping pieces from disengaging from the clamping grooves. Through the arrangement of the protective shell, the nut body can be prevented from being in direct contact with the external environment, so that corrosion of the external environment to the nut body is reduced, the overall corrosion resistance of the nut is improved, meanwhile, the clamping piece is limited in the clamping groove and separated from the clamping groove through the limiting piece, the protective shell is convenient to disassemble and assemble, and the service life of the nut is prolonged. The nut body is made of brass materials, and brass is high in strength and corrosion resistance, so that the nut body has good strength and corrosion resistance.

Description

Technical Field

[0001] This utility model relates to nuts, and more specifically, to corrosion-resistant nuts. Background Technology

[0002] A nut, also known as a bolt or threaded nut, is a fastening part used in conjunction with a bolt or threaded rod to connect and secure mechanical equipment through its internal threads. Nuts are made of materials including carbon steel, stainless steel, and copper alloys, and are widely used in various types of machinery manufacturing. Depending on specifications and standards, nuts can be classified into various types such as hexagonal nuts, lock nuts, and flange nuts. This utility model focuses on the more commonly used hexagonal nut.

[0003] Nuts are prone to plating failure in humid, salt spray, or corrosive environments (such as chloride ions or acidic substances), leading to substrate corrosion. For example, if soap residue (containing elements such as chloride and potassium) remains on the surface of a galvanized passivated nut, it will accelerate plating corrosion and even penetrate to the substrate. As a critical fastener, the corrosion resistance of nuts directly affects the reliability and safety of mechanical equipment. Therefore, a new nut solution is needed that combines long-term rust prevention, stable processing, and controllable cost. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hexagonal nut that is not easily corroded.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an anti-corrosion nut, including a nut body, wherein a protective shell for wrapping the nut body is detachably installed on the outside of the nut body, the inner sidewall of the protective shell is fully fitted with the outer sidewall of the nut body, a plurality of cards are arranged circumferentially on the inner sidewall of the protective shell, a plurality of card slots for card insertion are opened on the outer sidewall of the nut body, and a limiting member for preventing the card from falling out of the card slot is provided on the card.

[0006] The present invention is further configured such that: the limiting member includes limiting protrusions respectively disposed on both sides of the card, and limiting grooves for embedding the limiting protrusions are provided on the inner walls of both sides of the card slot, the cross sections of the limiting protrusions and the limiting grooves are both semi-circular, and the limiting protrusions are elastic.

[0007] The present invention is further configured such that: the protective shell includes a fixed part and an adjusting part slidably connected to the fixed part; the card is integrally formed with the fixed part; and an adjusting member is provided between the fixed part and the adjusting part for limiting the sliding of the adjusting part and controlling the distance between the adjusting part and the nut body.

[0008] The present invention is further configured such that: a sliding groove is formed on the inner side wall of the adjusting part along its height direction; the adjusting member is an elastic block set on the outer side wall of the fixing part; the elastic block is slidably connected in the sliding groove; the cross-section of the elastic block is circular; the diameter of the elastic block is larger than the width of the sliding groove; and a plurality of receiving grooves for accommodating the elastic block are formed at intervals along the direction of the sliding groove on the inner side wall of the adjusting part.

[0009] The present invention is further configured such that a convex ring is provided circumferentially on the top of the adjustment part.

[0010] The present invention is further configured such that the nut body is made of brass.

[0011] In summary, this utility model has the following beneficial effects: By setting up a protective shell, this utility model can prevent the nut body from directly contacting the external environment, thereby reducing the corrosion caused by the external environment to the nut body and improving the overall corrosion resistance of the nut. At the same time, by setting up a limiting component to limit and remove the card in the slot, the protective shell can be installed and removed from the nut body, making the operation more convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is an exploded view of the present invention;

[0014] Figure 3 for Figure 2 Enlarged diagram of section A in the middle;

[0015] Figure 4 for Figure 2 Enlarged schematic diagram of section B.

[0016] In the diagram: 1. Nut body; 2. Protective shell; 3. Card; 4. Card groove; 5. Limiting protrusion; 6. Limiting groove; 7. Fixing part; 8. Adjusting part; 9. Slide groove; 10. Elastic block; 11. Receiving groove; 12. Raised ring. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] A type of corrosion-resistant nut, such as Figure 1-2As shown, the device includes a nut body 1 made of brass, which is characterized by high strength and strong corrosion resistance, giving the nut body 1 good strength and corrosion resistance. A protective shell 2 is detachably installed on the outside of the nut body 1 to cover it, and the inner wall of the protective shell 2 fully fits the outer wall of the nut body 1. Several cards 3 are circumferentially arranged on the inner wall of the protective shell 2, and several slots 4 are formed on the outer wall of the nut body 1 for the cards 3 to be inserted. The cards 3 are provided with limiting members to prevent them from falling out of the slots 4. After the nut body 1 is installed and fixed, the protective shell 2 can be placed on top of the nut body 1, ensuring that the cards 3 on the protective shell 2 correspond to the slots 4 on the nut body 1. After the cards 3 are aligned with the slots 4, the protective shell 2 is gently pressed down to allow the cards 3 to gradually insert. In the slot 4 on the nut body 1, after the card 3 is fully inserted into the slot 4, the card 3 is limited by the limiting component. The limiting component can effectively prevent the card 3 from coming out of the slot 4 and causing the protective shell 2 to separate from the nut body 1, thus making the connection between the protective shell 2 and the nut body 1 have good stability. By setting the protective shell 2, the nut body 1 can be prevented from directly contacting the external environment, thereby reducing the corrosion caused by the external environment to the nut body 1 and improving the overall corrosion resistance of the nut. When it is necessary to disassemble the nut, simply release the limiting component from the card 3, and pull the protective shell 2 away from the nut body 1, causing the card 3 to come out of the slot 4. After the card 3 is completely removed from the slot 4, the protective shell 2 can be easily removed from the nut body 1, and the nut can then be screwed on for disassembly. The operation is relatively convenient.

[0019] like Figure 2-3As shown, the limiting component includes limiting protrusions 5 respectively disposed on both sides of the card 3. Limiting grooves 6 are formed on the inner walls of both sides of the card slot 4 for the limiting protrusions 5 to be inserted. Both the limiting protrusions 5 and the limiting grooves 6 have semi-circular cross-sections, and the limiting protrusions 5 are elastic. During the process of the card 3 being inserted into the card slot 4, when the limiting protrusions 5 abut against the top surface of the nut body 1, the limiting protrusions 5 generate resistance to the insertion of the card 3. Continuing to apply force, the limiting protrusions 5 and the nut body 1 squeeze against each other, forcing the limiting protrusions 5 to deform and be compressed. The card 3 can then continue to be inserted into the card slot 4. As the card 3 is continuously inserted into the card slot 4, the limiting protrusions 5 are subjected to pressure from the inner wall of the card slot 4, maintaining their deformed state. When the card 3 moves the limiting protrusions 5 to the limiting grooves 6, the pressure exerted by the inner wall of the card slot 4 on the limiting protrusions 5... When the pressure disappears, the limiting protrusion 5 deforms and returns to its original position, embedding itself in the limiting groove 6 and fully fitting the side wall of the limiting groove 6. The limiting groove 6 then acts as a limit for the limiting protrusion 5, restricting the movement of the card 3 within the slot 4. When the protective shell 2 needs to be removed, pulling the protective shell 2 causes the card 3 to come out of the slot 4. During the process of the card 3 coming out of the slot 4, the limiting protrusion 5 and the inner side wall of the limiting groove 6 are squeezed against each other, and the limiting protrusion 5 deforms and is compressed under force. Thus, the limiting protrusion 5 can come out of the limiting groove 6 as the card 3 moves, that is, the limiting groove 6 releases the limiting of the limiting protrusion 5. The protective shell 2 can then be pulled to remove the card 3 from the nut body 1. By the limiting protrusion 5 embedding and coming out of the limiting groove 6, the card 3 is limited and can move within the slot 4, making the disassembly and assembly of the protective shell 2 more convenient.

[0020] like Figure 2 , Figure 4As shown, the protective shell 2 includes a fixed part 7 and an adjusting part 8 slidably connected to the fixed part 7. The clip 3 is integrally formed with the fixed part 7. An adjusting member is provided between the fixed part 7 and the adjusting part 8 to limit the sliding of the adjusting part 8 and control the distance between the adjusting part 8 and the nut body 1. During the installation of the protective shell 2, the adjusting member can control the sliding of the adjusting part 8 on the fixed part 7 and change the distance between the adjusting part 8 and the nut body 1. The adjusting part 8 allows the protective shell 2 to accommodate bolts of different lengths, thereby increasing its applicability. To enhance flexibility and ease of use, a sliding groove 9 is provided on the inner wall of the adjusting part 8 along its height direction. The adjusting component is an elastic block 10 disposed on the outer wall of the fixed part 7. The elastic block 10 is slidably connected within the sliding groove 9. The cross-section of the elastic block 10 is circular, and the diameter of the elastic block 10 is larger than the width of the sliding groove 9. Several receiving grooves 11 for accommodating the elastic blocks 10 are spaced apart on the inner wall of the adjusting part 8 along the direction of the sliding groove 9. When it is necessary to adjust the adjusting part 8, the adjusting part 8 can be grasped and slid back and forth on the fixed part 7. During the movement, the elastic block 10 slides within the groove 9. Since the diameter of the elastic block 10 is larger than the width of the groove 9, the elastic block 10 is subjected to pressure from the inner walls on both sides of the groove 9 during its sliding. It deforms and is compressed and remains compressed. When the adjusting part 8 slides to the desired position, the elastic block 10 can be embedded in the corresponding receiving groove 11. Then, the pressure applied by the groove 9 disappears, the elastic block 10 recovers its deformation and abuts against the side wall of the receiving groove 11, thereby limiting the continued sliding of the adjusting part 8 and fixing the position of the adjusting part 8. By sliding the adjusting part 8, the elastic block 10 can be embedded in the receiving groove 11 at different positions, thereby changing the position of the adjusting part 8. This makes it more convenient to control the distance between the adjusting part 8 and the nut body 1. A protruding ring 12 is provided on the top of the adjusting part 8. The protruding ring 12 provides a stable point of force for the operator, allowing the operator to grasp the protruding ring 12 to apply force during the adjustment of the adjusting part 8 and the removal of the protective shell 2. This makes it easier for the operator to adjust the adjusting part 8 and remove the protective shell 2.

[0021] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A corrosion-resistant nut, characterized in that: The nut body (1) is detachably fitted with a protective shell (2) for wrapping the nut body (1). The inner wall of the protective shell (2) is fully fitted with the outer wall of the nut body (1). Several cards (3) are arranged circumferentially on the inner wall of the protective shell (2). Several slots (4) for the cards (3) to be inserted are opened on the outer wall of the nut body (1). The cards (3) are provided with limiting members to prevent the cards (3) from falling out of the slots (4).

2. The corrosion-resistant nut according to claim 1, characterized in that: The limiting component includes limiting protrusions (5) respectively disposed on both sides of the card (3), and limiting grooves (6) for embedding the limiting protrusions (5) are provided on the inner walls of both sides of the card slot (4). The cross sections of the limiting protrusions (5) and the limiting grooves (6) are both semi-circular, and the limiting protrusions (5) are elastic.

3. The corrosion-resistant nut according to claim 1, characterized in that: The protective shell (2) includes a fixing part (7) and an adjusting part (8) slidably connected to the fixing part (7). The card (3) is integrally formed with the fixing part (7). An adjusting member is provided between the fixing part (7) and the adjusting part (8) to limit the sliding of the adjusting part (8) and control the distance between the adjusting part (8) and the nut body (1).

4. The corrosion-resistant nut according to claim 3, characterized in that: The inner wall of the adjusting part (8) is provided with a sliding groove (9) along its height direction. The adjusting component is an elastic block (10) provided on the outer wall of the fixed part (7). The elastic block (10) is slidably connected in the sliding groove (9). The cross-section of the elastic block (10) is circular. The diameter of the elastic block (10) is larger than the groove width of the sliding groove (9). The inner wall of the adjusting part (8) is provided with a plurality of receiving grooves (11) for accommodating the elastic block (10) at intervals along the direction of the sliding groove (9).

5. The corrosion-resistant nut according to claim 4, characterized in that: The top circumferential part of the adjustment part (8) is provided with a protruding ring (12).

6. The corrosion-resistant nut according to claim 1, characterized in that: The nut body (1) is made of brass.

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