Self-locking stainless steel nut

Abstract

The utility model relates to the technical field of nuts, and discloses a self-locking stainless steel nut which comprises a nut body, fixing bolt blocks and a spring, a fixing bolt is arranged on the inner wall of the nut body, a sliding groove is reserved in the outer side of the fixing bolt, and the fixing bolt blocks are installed on the upper side and the lower side of the nut body. A limiting baffle is arranged in the middle of the fixing bolt block, the spring is fixed to the inner wall of the nut body, the limiting baffle is installed at the end of the spring, and an extrusion block is arranged below the limiting block. According to the stainless steel nut with the automatic locking function, through the arranged automatic locking structure, the threaded rod in the nut body can be automatically locked, the threaded rod is prevented from loosening in the nut, and the stainless steel nut with the automatic locking function is convenient to automatically lock the nut on a bolt, is convenient for a user to screw the nut, is convenient to disassemble and has good practicability.

Description

Technical Field

[0001] The invention relates to the technical field of nuts, in particular to a self-locking stainless steel nut. Background Art

[0002] General nuts will loosen due to vibration and other reasons during use. In order to solve the problem of loosening of nuts during use, many anti-loosening nuts have appeared on the market, but the effect is not as ideal as expected. Because nuts are divided into several types according to their materials, such as carbon steel, stainless steel, and non-ferrous metals (such as copper), among which stainless steel nuts are a more common type of nuts, but existing stainless steel nuts have the following problems: 1. The nut does not have the function of automatic locking, which increases the difficulty of users to install the nut and is not easy to be widely used; 2. There is no protrusion on the outside of the nut to increase friction, which makes it inconvenient for users to turn the nut.

[0003] The application number is 201910594110.8, which discloses that the invention discloses an external hexagonal nut, including an external hexagonal body, a threaded hole is arranged in the external hexagonal body, and the characteristics are: the bottom end face of the external hexagonal body is provided with a countersink, an elastic washer is arranged in the countersink, the inner hole diameter of the elastic washer is larger than the major diameter of the threaded hole, the thickness of the elastic washer is larger than the depth of the countersink, and the difference between the thickness of the elastic washer and the depth of the countersink is smaller than the maximum compression amount of the elastic washer. The invention can easily control the tightening force, and realize the same degree of tightening force on the same workpiece surface after tightening to ensure that the workpiece surface is evenly stressed, and better meet the tightening requirements.

[0004] The self-locking stainless steel nut disclosed in the above document has the following defects: after long-term use, the self-locking stainless steel nut may vibrate due to the continuous changes in the external environment, which may cause uneven force on the surface of the workpiece, thereby loosening the nut and causing the bolt to fall off. It does not have an automatic locking function.

[0005] It can be seen from this that the existing nuts do not have an automatic locking function, and it is necessary to improve the existing deficiencies and provide a self-locking stainless steel nut. Utility Model Content

[0006] The purpose of the present invention is to provide a self-locking stainless steel nut to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The present invention is a self-locking stainless steel nut, comprising a nut body, the inner wall of the nut body is provided with a bolt, and a card slot is reserved on the outer side of the bolt, the limit baffle plate is installed on the upper and lower sides of the nut body, and the limit baffle plate is arranged in the middle position of the fixing bolt, the spring is fixed on the inner wall of the nut body, and the limit baffle plate is installed at the end of the spring, and an extrusion block is arranged below the limit baffle plate, and a screw gasket is installed at the front end of the nut body, the two sides of the limit baffle plate are in the slide groove, and are fixedly installed with the spring, and the front end surface of the limit baffle plate is fixedly installed with the fixing bolt.

[0009] Furthermore, the outer surface of the nut body has evenly cut oblique quadrilaterals and triangles.

[0010] Furthermore, an upper anti-slip pad is installed on the upper end of the nut body and a screw washer is also installed on the lower end of the nut body.

[0011] Furthermore, a locking portion is installed at the bottom end of the screw washer and the inner hole diameter is the same as the threaded hole in the nut body and the thread trajectory is also the same.

[0012] Furthermore, a locking ring is installed at the bottom end of the locking portion.

[0013] The present invention has the following beneficial effects:

[0014] (1) The utility model provides an extrusion structure on the inner wall of the nut body, which can squeeze and fix the bolts rotated into the nut body to prevent the bolts from loosening due to vibration. When the bolts rotate into the nut body, the fixing bolt block in the extrusion structure on the inner wall of the nut body will generate an opposite force on the spring fixed on the extrusion plate due to the pressure of the bolts, so that the fixing bolts squeeze the bolts. It has good practicality.

[0015] (2) The utility model can further increase the contact area between the thread and the threaded rod by using the locking portion and the locking ring in coordination with each other, thereby achieving a better friction effect and stabilizing the screw rod.

[0016] (3) The utility model arranges a screw washer at the bottom of the nut body to prevent the nut body from loosening and increase friction.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the present invention;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1, nut body; 101, inclined quadrilateral; 102, triangle; 2, threaded hole; 201, thread in the hole; 3, fixing bolt; 301, extrusion block; 302, limit stop plate; 304, spring; 305, slide groove; 4, anti-slip gasket; 5, screw gasket; 6, locking part; 601, locking ring; DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 3 As shown, the present invention is a self-locking stainless steel nut, including a nut body 1, a slide groove 305, a spring 304 and a limit baffle plate 302, the inner wall of the nut body 1 is provided with a bolt 3, and the outer side of the bolt 3 is reserved with a slide groove 305, the limit baffle plate 302 is installed on the upper and lower sides of the nut body 1, and the limit baffle plate 302 is arranged in the middle position of the fixing bolt 3, the spring 304 is fixed on the inner wall of the nut body 1, and the limit baffle plate 302 is installed at the end of the spring 304, and an extrusion block 301 is arranged below the limit baffle plate 302.

[0026] A screw washer 5 is installed at the front end of the nut body 1 , both sides of the limit baffle plate 302 are in the slide groove 305 and fixedly installed with the spring 304 , and the front end surface of the fixed baffle plate 302 is fixedly installed with the bolt 3 .

[0027] The upper end of the nut body 1 is installed with an upper anti-slip pad 4, and at the same time, a screw washer 5 is installed at the lower end of the nut body 1. The bottom end of the screw washer 5 is installed with a locking portion 6, and the internal aperture is the same as the threaded hole 2 in the nut body 1, and the thread 201 track is also the same. A locking ring 601 is installed at the bottom end of the locking portion 6. The outer surface of the nut body 1 has evenly cut oblique quadrilaterals 101 and triangles 102.

[0028] When using, first, when using the stainless steel nut with automatic locking function, when the user places the nut body 1 on the outside of the fixing bolt 3, press the extrusion plate 301, and the extrusion plate 301 pushes the limit baffle plate 302 into the inner wall of the nut body 1. When the extrusion 301 moves to the specified position, a spring 304 is arranged on the outside of the extrusion plate 301. When the bolt rotates into the nut body 1, the fixing bolt 3 in the extrusion device located on the inner wall of the nut body 1 will generate an opposite force due to the pressure of the bolt rotation, so that the limit baffle slides in the slide groove 305 toward the fixing bolt 3, thereby guiding the fixing bolt 3 to squeeze the bolt. The screw gasket 5 is installed at the bottom end of the nut body 1, and the locking part 6 is rotated at the bottom end of the screw gasket 5 to increase the friction between the nut body 1 and the locking part 6 to fix the thread. It further strengthens the automatic locking function of the screw.

[0029] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A self-locking stainless steel nut, comprising a nut body (1), a limit stop plate (302) and a spring (304), characterized in that: The inner wall of the nut body (1) is provided with a bolt (3), and a slide groove (305) is reserved on the outer side of the bolt (3); the limit stop plate (302) is installed on the upper and lower sides of the nut body (1), and the limit stop plate (302) is arranged in the middle position of the fixing bolt (3); the spring (304) is fixed on the inner wall of the nut body (1), and the limit stop plate (302) is installed at the end of the spring (304), and an extrusion block (301) is arranged below the limit stop plate (302); A screw washer (5) is installed at the front end of the nut body (1), two sides of the limit baffle plate (302) are in the slide groove (305) and fixedly installed with the spring (304), and the front end surface of the limit baffle plate (302) is fixedly installed with the fixing bolt (3).

2. A self-locking stainless steel nut according to claim 1, characterized in that: An upper anti-slip cushion layer (4) is installed at the upper end of the nut body (1) and a screw washer (5) is also installed at the lower end of the nut body (1).

3. A self-locking stainless steel nut according to claim 2, characterized in that: The bottom end of the screw washer (5) is mounted with a locking portion (6) and has an internal hole diameter that is the same as the threaded hole (2) in the nut body (1) and a thread (201) trajectory that is also the same.

4. A self-locking stainless steel nut according to claim 3, characterized in that: A locking ring (601) is installed at the bottom end of the locking portion (6).

5. The self-locking stainless steel nut according to claim 1, characterized in that: The outer surface of the nut body (1) has evenly cut oblique quadrilaterals (101) and triangles (102).

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