Anti-corrosion bolt

Abstract

The utility model discloses an anti-corrosion bolt which comprises a screw rod, the upper end of the screw rod is fixedly connected with a bolt head, the side surface of the screw rod is provided with a plurality of grooves, the grooves penetrate through the upper end and the lower end of the screw rod, the lower surface of the bolt head is fixedly connected with a plurality of rubber strips, and the rubber strips are located in the grooves. The thickness of the rubber strip is larger than the depth of the groove, when the bolt is used, the surface of the rubber strip is in close contact with the inner wall where the bolt is installed, a sealing ring is arranged on the surface of the screw rod, and when the bolt is used, the upper end and the lower end of the sealing ring are in close contact with the bolt head and the bolt installation position respectively. By means of the device, the sealing effect of the bolt installation position is improved, the situation that the bolt is rusted when making contact with water vapor is reduced, and the situation that the strength of the bolt is seriously reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to an anti-corrosion bolt. Background Art

[0002] Bolts are commonly used auxiliary parts for fixing objects. After the bolts are installed, they are affected by water vapor and oxygen, causing the bolts to rust, which seriously affects the bearing strength and installation stability of the bolts. The "anti-rust bolt" disclosed in the China Patent Network has an application number of "201220426996.9". The bolt has a hollow structure through the head of the bolt and the screw rod. When installing the bolt, anti-rust oil is added to the inner hole of the bolt through the hole in the head, and the anti-rust oil is sealed in the screw rod with a sealing block. The anti-rust oil can be slowly released through the through hole on the screw rod to prevent the bolt from rusting, thereby achieving a good anti-rust effect. However, when the bolt is used, a large amount of oil and impurities are generated at the bolt installation site due to the seepage of the anti-rust oil, requiring staff to frequently clean the bolt installation site. Compared with solid structure bolts, hollow structure bolts may reduce the bearing capacity and tensile strength of the bolts, causing the bolts to be more easily tilted or deformed when subjected to force, resulting in the hidden danger of bolt breakage during the use of the bolts. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, to provide a rust-proof bolt, to improve the sealing effect after the bolt is installed, to reduce the influence of water vapor on the bolt, to improve the rust-proof ability of the bolt after installation, to improve the convenience of adding lubricant, to improve the convenience of the bolt installation and disassembly process, and at the same time to avoid serious reduction in the bearing capacity of the bolt.

[0004] The utility model also provides the above-mentioned anti-corrosion bolt, comprising: a screw rod, the upper end of the screw rod is fixedly connected with a bolt head, the side surface of the screw rod is provided with a plurality of grooves, the grooves penetrate the upper and lower ends of the screw rod, the lower surface of the bolt head is fixedly connected with a plurality of rubber strips, the rubber strips are located inside the grooves, and the thickness of the rubber strips is greater than the depth of the grooves, when the bolt is used, the surface of the rubber strips is in close contact with the inner wall where the bolt is installed, and the surface of the screw rod is provided with a sealing ring, when the bolt is used, the upper and lower ends of the sealing ring are in close contact with the bolt head and the bolt installation respectively.

[0005] According to the anti-corrosion bolt of the utility model, the upper surface of the bolt head is a concave structure, and a cross groove is arranged on the upper surface of the bolt head, so as to improve the convenience of disassembling the bolt.

[0006] According to the anti-corrosion bolt of the utility model, a decorative cover is provided on the upper surface of the bolt head, and the decorative cover completely covers the bolt head, thereby improving the appearance of the bolt.

[0007] According to the anti-corrosion bolt of the utility model, an oil storage cavity is arranged inside the rubber strip, and the oil storage cavity runs through the side of the rubber strip away from the screw rod, thereby improving the convenience of adding lubricating oil.

[0008] According to the anti-corrosion bolt of the utility model, a groove is arranged at the upper end of the rubber strip, and when the bolt is used, the sealing ring is located inside the groove, thereby improving the stability of the sealing ring.

[0009] According to the anti-corrosion bolt of the utility model, the oil storage cavity is a T-shaped structure, and the decorative cover is made of rubber material, thereby improving the performance of the bolt component.

[0010] Beneficial Effects

[0011] 1. Compared with the prior art, this anti-corrosion bolt improves the sealing effect after the bolt is installed, reduces the influence of water vapor on the bolt, improves the anti-rust ability of the bolt after installation, and improves the convenience of adding lubricant, improves the convenience of bolt installation and disassembly process, and avoids serious reduction of the bearing capacity of the bolt through grooves, rubber strips, oil storage chambers, card grooves, and sealing rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0013] Figure 1 This is a bottom view of the structure of an anti-corrosion bolt of the utility model;

[0014] Figure 2 The utility model is a kind of anti-corrosion bolt Figure 1 The structure diagram at A is enlarged;

[0015] Figure 3 This is a top view of the structure of an anti-corrosion bolt of the utility model;

[0016] Figure 4 The utility model is a cross-sectional structural diagram of a rubber strip of an anti-corrosion bolt.

[0017] Legend:

[0018] 1. Screw; 2. Groove; 3. Rubber strip; 4. Oil storage chamber; 5. Cross groove; 6. Decorative cover; 7. Slot; 8. Sealing ring; 9. Bolt head. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] Reference Figure 1-4 The utility model embodiment provides an anti-corrosion bolt, which includes: a screw rod 1, the upper end of the screw rod 1 is fixedly connected with a bolt head 9, the bolt head 9 cooperates with the screw rod 1 to form the basic structure of the bolt, the upper surface of the bolt head 9 is a concave structure, the upper surface of the bolt head 9 is provided with a cross groove 5, the cross groove 5 cooperates with the hexagonal bolt head 9 to provide two ways of controlling the bolt, and a decorative cover 6 is provided on the upper surface of the bolt head 9, the decorative cover 6 completely covers the bolt head 9, the decorative cover 6 is made of rubber, the decorative cover 6 improves the appearance of the bolt head 9, and prevents impurities from entering the inside of the cross groove 5.

[0021] The side surface of the screw rod 1 is provided with a plurality of grooves 2, and the grooves 2 pass through the upper and lower ends of the screw rod 1. A plurality of rubber strips 3 are fixedly connected to the lower surface of the bolt head 9. The rubber strips 3 are located inside the grooves 2, and the thickness of the rubber strips 3 is greater than the depth of the grooves 2. When the bolts are used, the surface of the rubber strips 3 is in close contact with the inner wall where the bolts are installed, and the grooves 2 cooperate with the rubber strips 3 to increase the friction between the bolt installation and the installation point thereof to prevent the bolts from loosening. At the same time, the elasticity and flexibility of the rubber strips 3 are utilized to increase the sealing effect at the bolt installation point and improve the anti-seismic performance of the bolts.

[0022] An oil storage chamber 4 is provided inside the rubber strip 3. The oil storage chamber 4 runs through the side of the rubber strip 3 away from the screw 1. The oil storage chamber 4 is a T-shaped structure. The oil storage chamber 4 is convenient for storing lubricants, which increases the convenience of installing and removing bolts. At the same time, the oil storage chamber 4 improves the flexibility of the rubber strip 3. A sealing ring 8 is provided on the surface of the screw 1. When the bolt is used, the upper and lower ends of the sealing ring 8 are in close contact with the bolt head 9 and the bolt installation position respectively. The sealing ring 8 further improves the sealing effect after the bolt is installed. A card groove 7 is provided on the upper end of the rubber strip 3. When the bolt is used, the sealing ring 8 is located inside the card groove 7. The card groove 7 improves the stability of the sealing ring 8 when it is in action.

[0023] Working principle: When using the bolt, first add a small amount of lubricant to the inside of the oil storage chamber 4, then you can use the tool to install the bolt. During the tightening of the bolt, the rubber strip 3 is squeezed and deformed, and at the same time, the lubricant inside the oil storage chamber 4 is squeezed and transferred to the threaded wall, thereby improving the convenience of installing the bolt. After the bolt is installed, the rubber strip 3, lubricant, and sealing ring 8 cooperate with each other to improve the sealing of the bolt after installation, thereby reducing the influence of water vapor on the bolt and improving the rust prevention ability of the bolt after installation. The bolt does not need to add additional auxiliary rust prevention items when in use, which reduces the convenience of cleaning the bolt.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A corrosion-resistant bolt, characterized in that: include: A screw rod (1), the upper end of which is fixedly connected to a bolt head (9), the side surface of which is provided with a plurality of grooves (2), the grooves (2) passing through the upper and lower ends of the screw rod (1), the lower surface of which is fixedly connected to a plurality of rubber strips (3), the rubber strips (3) being located inside the grooves (2), and the thickness of the rubber strips (3) being greater than the depth of the grooves (2), and when the bolt is used, the surface of the rubber strips (3) is in close contact with the inner wall where the bolt is installed, and a sealing ring (8) is provided on the surface of the screw rod (1), and when the bolt is used, the upper and lower ends of the sealing ring (8) are in close contact with the bolt head (9) and the bolt installation place respectively.

2. The anti-corrosion bolt according to claim 1, characterized in that: The upper surface of the bolt head (9) is a concave structure, and a cross groove (5) is provided on the upper surface of the bolt head (9).

3. The anti-corrosion bolt according to claim 1, characterized in that: The upper surface of the bolt head (9) is provided with a decorative cover (6), and the decorative cover (6) completely covers the bolt head (9).

4. The anti-corrosion bolt according to claim 3, characterized in that: An oil storage cavity (4) is provided inside the rubber strip (3), and the oil storage cavity (4) passes through a side of the rubber strip (3) away from the screw rod (1).

5. The anti-corrosion bolt according to claim 1, characterized in that: The upper end of the rubber strip (3) is provided with a slot (7), and when the bolt is used, the sealing ring (8) is located inside the slot (7).

6. The anti-corrosion bolt according to claim 4, characterized in that: The oil storage chamber (4) is of a T-shaped structure, and the decorative cover (6) is made of rubber.

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