Anti-seismic self-locking flange nut

Abstract

The utility model relates to the technical field of nuts, and provides an anti-seismic self-locking flange nut which comprises a hexagon nut, the bottom of the hexagon nut is connected with a nut flange, a sealing assembly is arranged on the bottom face of the nut flange, and an anti-skid assembly is arranged on the edge of the bottom face of the nut flange. The antiskid assembly comprises positioning grooves, the positioning grooves are formed in the edge of the bottom face of the nut flange, the multiple positioning grooves are evenly distributed in the nut flange, adjusting springs are arranged in the positioning grooves, positioning blocks are arranged on the adjusting springs, antiskid pads are arranged at the bottoms of the positioning blocks, and parts of the positioning blocks stretch out of the positioning grooves. The sealing assembly comprises a positioning disc groove, the positioning disc groove is formed in the bottom of the nut flange, a sealing gasket is embedded in the annular cavity, an embedded ring is arranged on the sealing gasket, and the embedded ring is embedded in the sealing gasket. By means of the technical scheme, the problem that in the prior art, when vibration is generated, the friction force of the bottom face of a nut is not enough to fix a bolt, and looseness is likely to happen is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, and in particular to a seismic-resistant self-locking flange nut. Background Art

[0002] A nut is a part that is screwed together with a bolt or screw for fastening. It is a component that must be used in all manufacturing machinery. According to the different materials, it is divided into several major types, such as carbon steel, stainless steel, non-ferrous metals (such as copper), etc.

[0003] Nuts are parts that tightly connect mechanical equipment. Nuts and bolts of the same specifications can be connected together through the inner thread. For example, M4-P0.7 nuts can only be connected with M4-P0.7 series bolts (in nuts, M4 refers to the inner diameter of the nut is about 4mm, and 0.7 refers to the distance between two thread teeth is 0.7mm); the same is true for American products, for example, 1 / 4-20 nuts can only be matched with 1 / 4-20 screws (1 / 4 refers to the inner diameter of the nut is about 0.25 inches, and 20 refers to 20 teeth in every inch). They can be divided into self-locking nuts, anti-loosening nuts, locking nuts, four-claw nuts, screw-in nut insurance nuts, thin-rod screw connection nuts, self-locking hexagonal cap nuts, special nuts for anchor screws, hexagonal crown thin nuts, and eye nuts. They are easy to install, do not require washers, are easy to disassemble, are reusable, are made of medium carbon steel, and can be used with grade 8.8, grade 10.9 and other high-strength bolts.

[0004] During the process of screwing the nut, the bottom of the nut contacts the plane to generate friction, which fixes the nut and achieves a locking effect. However, when vibration occurs, the friction force of the bottom of the nut alone is not enough to fix the bolt, which is prone to loosening. In view of this, a seismic-resistant self-locking flange nut is developed. Utility Model Content

[0005] The utility model provides a seismic-resistant self-locking flange nut, which solves the problem in the prior art that when vibration occurs, the friction force of the bottom surface of the nut is insufficient to fix the bolt, which easily causes loosening.

[0006] The technical solution of the utility model is as follows:

[0007] A hexagonal nut, the bottom of which is connected to a nut flange;

[0008] A sealing assembly, wherein the sealing assembly is arranged on the bottom surface of the nut flange;

[0009] An anti-skid component, the anti-skid component is arranged at the bottom edge of the nut flange;

[0010] The anti-slip component includes a positioning groove, which is opened at the bottom edge of the nut flange. There are several positioning grooves, and multiple positioning grooves are evenly distributed on the nut flange. An adjustment spring is arranged in the positioning groove, a positioning block is arranged on the adjustment spring, an anti-slip pad is arranged at the bottom of the positioning block, and a part of the positioning block extends out of the positioning groove.

[0011] As a further technical solution, a fitting pad is provided at the bottom of the nut flange, a buffer groove is opened at the edge of the fitting pad, and the buffer groove is opened along a circumference on the side wall of the fitting pad.

[0012] As a further technical solution, the sealing assembly includes a positioning disc groove, which is opened at the bottom of the nut flange. An annular cavity is opened at the bottom of the nut flange, and a sealing gasket is embedded in the annular cavity. An embedded ring is provided on the sealing gasket, and the embedded ring is embedded in the sealing gasket.

[0013] As a further technical solution, a clearance hole is opened at the center of the sealing gasket, and the clearance hole matches the hexagonal nut.

[0014] As a further technical solution, a through hole is opened at the center of the nut flange, and the through hole matches the diameter of the clearance hole.

[0015] As a further technical solution, the positioning groove and the positioning block are both cylindrical structures, and the outer diameter of the adjustment spring matches the outer diameter of the positioning block.

[0016] As a further technical solution, the nut flange and the hexagonal nut are fixedly connected, and the nut flange and the hexagonal nut are an integrally formed structure.

[0017] As a further technical solution, the positioning groove is composed of a plurality of trapezoidal grooves distributed on the bottom of the nut flange.

[0018] The working principle and beneficial effects of the utility model are:

[0019] The utility model can make the friction force of the bottom surface of the nut greater by means of the positioning groove, adjustment spring, positioning block, anti-skid pad, fitting pad and buffer groove of the sealing component to prevent the nut from loosening, and the fitting pad can be firmly fixed to the bottom surface of the nut by means of the positioning plate groove, annular cavity, clearance hole and embedding hole in the anti-skid component to increase the friction force. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is an axonometric view from another perspective of the utility model;

[0023] Figure 3 This is an axial view of the sealing gasket of the utility model;

[0024] Figure 4 This is a cross-sectional view of the sealing gasket of the utility model;

[0025] Figure 5 This is the axonometric view of the positioning block of the utility model;

[0026] In the figure: 1. Hexagonal nut; 2. Nut flange; 3. Sealing assembly; 3-1. Positioning groove; 3-2. Adjusting spring; 3-3. Positioning block; 3-4. Anti-skid pad; 3-5. Fitting pad; 3-6. Buffer groove; 4. Anti-skid assembly; 4-1. Positioning plate groove; 4-2. Annular cavity; 4-3. Clearance hole; 4-4. Mounting ring; 5. Through hole. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1~Figure 5 As shown, this embodiment provides a seismic-resistant self-locking flange nut, comprising

[0029] A hexagonal nut 1, wherein a nut flange 2 is connected to the bottom of the hexagonal nut 1;

[0030] A sealing component 3, wherein the sealing component 3 is arranged on the bottom surface of the nut flange 2;

[0031] An anti-skid component 4, wherein the anti-skid component 4 is arranged at the bottom edge of the nut flange 2;

[0032] The anti-slip component 4 includes a positioning groove 3-1, and the positioning groove 3-1 is opened at the bottom edge of the nut flange 2. The number of the positioning grooves 3-1 is several, and the plurality of positioning grooves 3-1 are evenly distributed on the nut flange 2. An adjustment spring 3-2 is arranged in the positioning groove 3-1, and a positioning block 3-3 is arranged on the adjustment spring 3-2. An anti-slip pad 3-4 is arranged at the bottom of the positioning block 3-3, and a part of the positioning block 3-3 extends out of the positioning groove 3-1.

[0033] In this embodiment, the positioning groove 3-1 can increase the contact surface of the nut flange 2, and the adjustment spring 3-2 always applies an outward pushing force to the positioning block 3-3, so that the anti-slip pad 3-4 increases the friction of the hexagonal nut 1, and the disc-shaped nut flange 2 also increases the friction of the hexagonal nut 1.

[0034] Specifically, a fitting pad 3-5 is provided at the bottom of the nut flange 2, a buffer groove 3-6 is opened at the edge of the fitting pad 3-5, and the buffer groove 3-6 is opened along a circle on the side wall of the fitting pad 3-5.

[0035] In this embodiment, the buffer groove 3-6 on the fitting pad 3-5 can shrink when the hexagonal nut 1 is squeezed, so that the hexagonal nut 1 fits more closely to the screwing plane and increases the friction.

[0036] Furthermore, the sealing assembly 3 includes a positioning disc groove 4-1, the positioning disc groove 4-1 is opened at the bottom of the nut flange 2, an annular cavity 4-2 is opened at the bottom of the nut flange 2, and an embedded ring 4-4 ​​is provided on the sealing gasket, and the embedded ring 4-4 ​​is embedded in the sealing gasket.

[0037] In this embodiment, the positioning plate groove 4-1 is used to release pressure so that the hexagonal nut 1 fits better when being screwed, and the annular cavity 4-2 is used to install the fitting pad 3-5.

[0038] Furthermore, a clearance hole 4-3 is opened at the center position of the sealing gasket, and the clearance hole 4-3 matches the hexagonal nut 1. A through hole 5 is opened at the center position of the nut flange 2, and the through hole 5 matches the diameter of the clearance hole 4-3. The positioning groove 3-1 and the positioning block 3-3 are both cylindrical structures, and the outer diameter of the adjustment spring 3-2 matches the outer diameter of the positioning block 3-3.

[0039] In this embodiment, the clearance hole 4 - 3 provides a space for the bolt to be inserted, and the same is true for the through hole 5 . At the same time, the bolt passes through the nut flange 2 when the hexagonal nut 1 is screwed.

[0040] Furthermore, the nut flange 2 is fixedly connected to the hexagonal nut 1 , and the nut flange 2 and the hexagonal nut 1 are an integrally formed structure, and the positioning groove 3 - 1 is composed of a plurality of trapezoidal grooves distributed on the bottom of the nut flange 2 .

[0041] When the hexagonal nut 1 and the bolt need to be screwed, the positioning groove 3-1 can increase the contact surface of the nut flange 2, and the adjustment spring 3-2 always applies an outward pushing force to the positioning block 3-3, so that the anti-slip pad 3-4 increases the friction of the hexagonal nut 1, and the disc-shaped nut flange 2 also increases the friction of the hexagonal nut 1. The buffer groove 3-6 on the fitting pad 3-5 can shrink when the hexagonal nut 1 is squeezed, so that the hexagonal nut 1 fits the screwing plane more closely, increasing the friction, and the bolt will pass through the through hole 5 and the give way hole 4-3 and be screwed into the hexagonal nut 1.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A seismic-resistant self-locking flange nut, characterized in that: include A hexagonal nut (1), wherein the bottom of the hexagonal nut (1) is connected to a nut flange (2); A sealing component (3), wherein the sealing component (3) is arranged on the bottom surface of the nut flange (2); An anti-slip component (4), wherein the anti-slip component (4) is arranged at the bottom edge of the nut flange (2); The anti-slip component (4) comprises a positioning groove (3-1), the positioning groove (3-1) is opened at the bottom edge of the nut flange (2), the positioning groove (3-1) is provided in a plurality of numbers, and the plurality of positioning grooves (3-1) are evenly distributed on the nut flange (2), an adjustment spring (3-2) is arranged in the positioning groove (3-1), a positioning block (3-3) is arranged on the adjustment spring (3-2), an anti-slip pad (3-4) is arranged at the bottom of the positioning block (3-3), and a part of the positioning block (3-3) extends out of the positioning groove (3-1).

2. The anti-seismic self-locking flange nut according to claim 1, characterized in that: A fitting pad (3-5) is arranged at the bottom of the nut flange (2), a buffer groove (3-6) is opened at the edge of the fitting pad (3-5), and the buffer groove (3-6) is opened along a circumference on the side wall of the fitting pad (3-5).

3. The anti-seismic self-locking flange nut according to claim 2, characterized in that: The sealing assembly (3) comprises a positioning disc groove (4-1), the positioning disc groove (4-1) is opened at the bottom of the nut flange (2), the bottom of the nut flange (2) is opened with an annular cavity (4-2), a sealing gasket is embedded in the annular cavity (4-2), an embedded ring (4-4) is arranged on the sealing gasket, and the embedded ring (4-4) is embedded in the sealing gasket.

4. The anti-seismic self-locking flange nut according to claim 3, characterized in that: A clearance hole (4-3) is provided at the center of the sealing gasket, and the clearance hole (4-3) matches the hexagonal nut (1).

5. The anti-seismic self-locking flange nut according to claim 4, characterized in that: A through hole (5) is provided at the center of the nut flange (2), and the diameter of the through hole (5) matches that of the clearance hole (4-3).

6. The anti-seismic self-locking flange nut according to claim 1, characterized in that: The positioning groove (3-1) and the positioning block (3-3) are both cylindrical structures, and the outer diameter of the adjustment spring (3-2) matches the outer diameter of the positioning block (3-3).

7. The anti-seismic self-locking flange nut according to claim 1, characterized in that: The nut flange (2) is fixedly connected to the hexagonal nut (1), and the nut flange (2) and the hexagonal nut (1) are an integrally formed structure.

8. The anti-seismic self-locking flange nut according to claim 3, characterized in that: The positioning groove (3-1) is composed of a plurality of trapezoidal grooves distributed on the bottom of the nut flange (2).

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