Corrosion resistant nut

Abstract

The utility model discloses a kind of corrosion-resistant nuts, belong to nut technical field, solve the clamping fixed object after nut is tightened on bolt, in long time fixation, external environment leads to nut and fixed object rust, in turn cause the problem of difficult disassembly of nut. Including nut body, the bottom of the nut body is fixedly connected with connection hexagonal part, the outer side of the connection hexagonal part is equipped with sealing rubber ring, the outer diameter of the sealing rubber ring is greater than the excircle diameter of connection hexagonal part, the thickness of the sealing rubber ring is greater than the thickness of connection hexagonal part. The utility model is locked nut by spiral arc piece deformation, rubber ring bottom sealing, sealing sleeve top sealing, double waterproof and rustproof.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, and in particular to a corrosion-resistant nut. Background Technology

[0002] Nuts are common fasteners with internal threads on the inside. They are used with bolts and other fasteners to transmit loads through thread engagement. Common materials include carbon steel and stainless steel. They are widely used in machinery, construction and other fields to connect, fasten and ensure structural stability.

[0003] After the nut is tightened on the bolt, the nut will work with the bolt to effectively clamp the fixed object. However, during the long-term fixing process, the external environment will cause corrosion between the nut and the fixed object, which will eventually make it difficult to remove the nut.

[0004] Therefore, a corrosion-resistant nut is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a corrosion-resistant nut.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A corrosion-resistant nut includes a nut body, a connecting hexagonal portion fixedly connected to the bottom of the nut body, a sealing rubber ring sleeved on the outer side of the connecting hexagonal portion, the outer diameter of the sealing rubber ring being larger than the outer tangent circle diameter of the connecting hexagonal portion, and the thickness of the sealing rubber ring being larger than the thickness of the connecting hexagonal portion.

[0007] Preferably, the bottom of the connecting hexagonal part is provided with two symmetrically arranged arc-shaped grooves, and a protruding spiral arc plate is fixedly connected in the arc-shaped groove.

[0008] Preferably, a sealing sleeve is detachably connected to the top of the nut body, the inner ring of the sealing sleeve has an internal thread that is consistent with the thread in the nut body, and the sealing sleeve has elastic deformation properties.

[0009] Preferably, the top of the nut body is fixedly connected to a connecting cylindrical part, and the bottom of the sealing screw sleeve is provided with a groove, and the sealing screw sleeve is sleeved on the outside of the connecting cylindrical part through the groove.

[0010] Preferably, both the sealing rubber ring and the sealing threaded sleeve are made of ethylene propylene rubber.

[0011] Preferably, the surfaces of the nut body, the connecting hexagonal portion, the connecting cylindrical portion, and the spiral arc plate are all provided with an electroplated zinc layer.

[0012] This utility model has the following beneficial effects: This utility model uses a spiral arc plate to deform and lock the nut, with a rubber ring sealing the bottom and a sealing screw sleeve sealing the top, providing double waterproofing and rust prevention. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 For the explosion of this utility model Figure 1 ; Figure 4 For the explosion of this utility model Figure 2 .

[0015] 1. Nut body; 101. Connecting hexagonal part; 102. Connecting cylindrical part; 103. Arc groove; 104. Helical arc plate; 2. Sealing rubber ring; 3. Sealing threaded sleeve; 301. Embedded groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] A type of corrosion-resistant nut, such as Figures 1 to 4 As shown, the nut body 1 includes a connecting hexagonal portion 101 fixedly connected to its bottom. A sealing rubber ring 2 is fitted around the outside of the connecting hexagonal portion 101. The outer diameter of the sealing rubber ring 2 is larger than the diameter of the circumscribed circle of the connecting hexagonal portion 101, and the thickness of the sealing rubber ring 2 is greater than the thickness of the connecting hexagonal portion 101. Two symmetrically arranged arc-shaped grooves 103 are formed at the bottom of the connecting hexagonal portion 101. A protruding spiral arc plate 104 is fixedly connected within the arc-shaped grooves 103. A sealing threaded sleeve is detachably connected to the top of the nut body 1. 3. The inner ring of the sealing screw sleeve 3 has an internal thread that is consistent with the thread in the nut body 1. The sealing screw sleeve 3 has elastic deformation properties. The top of the nut body 1 is fixedly connected to the connecting cylindrical part 102. The surfaces of the nut body 1, the connecting hexagonal part 101, the connecting cylindrical part 102, and the spiral arc plate 104 are all provided with an electroplated zinc layer. The bottom of the sealing screw sleeve 3 has a groove 301. The sealing screw sleeve 3 is fitted onto the outside of the connecting cylindrical part 102 through the groove 301. Both the sealing rubber ring 2 and the sealing screw sleeve 3 are made of ethylene propylene rubber.

[0023] When using this nut, if it is only necessary to ensure that the nut is installed securely, the nut body 1 can be rotated directly, thereby squeezing the spiral arc plate 104 at the bottom of the connecting hexagonal part 101. The spiral arc plate 104 will deform and accumulate elastic potential energy until the connecting hexagonal part 101 contacts the fixed object. At this time, the spiral arc plate 104 attempts to return to its original shape, thus applying a force along its central axis to the nut body 1. This makes the threads of the nut body 1 and the bolt threaded connection interlock tightly and difficult to separate. If it is necessary to prevent the nut from rusting and becoming difficult to separate from the fixed object, a sealing rubber ring 2 can be fitted on the outside of the connecting hexagonal part 101. Since the thickness of the sealing rubber ring 2 is greater than the thickness of the connecting hexagonal part 101, and its outer diameter is also greater than the outer tangent circle diameter of the connecting hexagonal part 101, the sealing rubber ring 2 can provide a good shielding effect between the connecting hexagonal part 101 and the fixed object, as well as the bolt, to prevent water erosion and subsequent corrosion in this area. If it is necessary to ensure that the upper end of the nut is also protected from rusting with the bolt, a sealing sleeve 3 can be fitted on the outside of the connecting cylindrical part 102. The sealing sleeve 3 can be threaded together with the bolt along with the nut body 1. Since the sealing sleeve 3 has a certain elastic deformation performance, when it is threaded on the outside of the bolt, it can also shield the upper end of the nut body 1, preventing water from entering between the nut body 1 and the bolt and causing rust.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corrosion-resistant nut, characterized in that, The nut body (1) is fixedly connected to a connecting hexagonal part (101) at its bottom. A sealing rubber ring (2) is sleeved on the outside of the connecting hexagonal part (101). The outer diameter of the sealing rubber ring (2) is larger than the outer tangent circle diameter of the connecting hexagonal part (101), and the thickness of the sealing rubber ring (2) is larger than the thickness of the connecting hexagonal part (101).

2. The corrosion-resistant nut according to claim 1, characterized in that, The bottom of the connecting hexagonal part (101) is provided with two symmetrically arranged arc-shaped grooves (103), and a protruding spiral arc plate (104) is fixedly connected in the arc-shaped groove (103).

3. A corrosion-resistant nut according to claim 2, characterized in that, The top of the nut body (1) is detachably connected to a sealing screw sleeve (3). The inner ring of the sealing screw sleeve (3) has an internal thread that is consistent with the thread in the nut body (1). The sealing screw sleeve (3) has elastic deformation properties.

4. A corrosion-resistant nut according to claim 3, characterized in that, The nut body (1) has a connecting cylindrical part (102) fixedly connected to its top, and the sealing screw sleeve (3) has a groove (301) at its bottom. The sealing screw sleeve (3) is fitted onto the outside of the connecting cylindrical part (102) through the groove (301).

5. A corrosion-resistant nut according to claim 3, characterized in that, Both the sealing rubber ring (2) and the sealing threaded sleeve (3) are made of ethylene propylene rubber.

6. A corrosion-resistant nut according to claim 3, characterized in that, The surfaces of the nut body (1), the connecting hexagonal part (101), the connecting cylindrical part (102), and the spiral arc plate (104) are all provided with an electroplated zinc layer.

Images