Pressure point type all-metal locking nut

Abstract

The utility model provides a pressure point type all-metal locking nut, which relates to the technical field of locking nuts, and comprises a rotating part and a thread part, a through hole is arranged in the rotating part, a clamping groove is arranged at one end of the through hole, a limiting ring is arranged at one end of the rotating part and is positioned on one side of the clamping groove, and the thread part is arranged on the rotating part. The threaded part is located in the through hole of the rotating part and slidably connected with the rotating part, a threaded hole is formed in the threaded part, a clamping block matched with the clamping groove is arranged at one end of the threaded part, a pressing point is arranged at the other end of the threaded part, a compressible gasket is arranged in the limiting ring, and the outer surface of the gasket abuts against the inner surface of the limiting ring. According to the pressing point type all-metal locking nut, after the nut is detached from a bolt, when the nut is reused, the nut can be continuously and stably locked on the bolt only by replacing the threaded part, so that the whole nut does not need to be replaced, resource waste is reduced, replacement is convenient, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of locking nuts, in particular to a press-point type all-metal locking nut. Background Art

[0002] The press-point type all-metal locking nut is a fastener designed for high-strength and high-reliability applications. During the manufacturing process, the nut is slightly deformed in the threaded part through die stamping to form a threaded deformation zone of about three threads. This deformation makes the inner diameter of the nut's thread slightly smaller than the outer diameter of the mating bolt. When the nut is tightened, the close contact between the threads generates a high frictional force, effectively preventing the nut from loosening when subjected to vibration or impact.

[0003] Since the thread structure of this press-point type all-metal locking nut has been deformed, when it is disassembled and reused, its locking force will be significantly reduced. At this time, a complete replacement will lead to an increase in cost and it is difficult to meet the usage requirements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a press-point type all-metal locking nut, aiming to solve the problems mentioned in the above background art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: The press-point type all-metal locking nut includes a rotating part and a threaded part. A through hole is opened inside the rotating part. A clamping groove is opened at one end of the through hole. A limiting ring is arranged at one end of the rotating part and on one side of the clamping groove. The threaded part is located inside the through hole of the rotating part and is slidably connected to the rotating part. A threaded hole is opened on the threaded part. A clamping block matched with the clamping groove is arranged at one end of the threaded part. A press point is arranged at the other end of the threaded part. A compressible washer is arranged inside the limiting ring. The outer surface of the washer abuts against the inner surface of the limiting ring.

[0006] Preferably, the thickness of the washer is greater than the thickness of the limiting ring.

[0007] Preferably, there are at least two clamping grooves, which are evenly arranged in a circle at one end of the through hole. The number of clamping blocks is equal to that of the clamping grooves. The depth of the clamping groove is the same as the thickness of the clamping block.

[0008] Preferably, the rotating part has magnetism and can adsorb the threaded part on the rotating part.

[0009] Preferably, the thickness of the threaded part is equal to the thickness of the rotating part.

[0010] The beneficial effects of the utility model are:

[0011] After the press - point type all - metal locking nut is removed from the bolt, when the nut is reused, only the threaded part needs to be replaced, so that the nut can continue to be stably locked on the bolt. Thus, it is not necessary to replace the entire nut, reducing waste of resources, and the replacement is convenient with good use effect. Brief Description of the Drawings

[0012] Figure 1 It is a schematic structural view of a specific embodiment of the present utility model.

[0013] Figure 2 It is a cross - sectional view of the rotating part.

[0014] Figure 3 It is an exploded view of the present locking nut.

[0015] Figure 4 It is a schematic structural view when the present locking nut is in use.

[0016] In the figure: 1, rotating part; 2, threaded part; 3, bolt; 4, card slot; 5, limiting ring; 6, threaded hole; 7, clamping block; 8, press point; 9, washer. Detailed Description of the Embodiment

[0017] The following further describes the specific embodiments of the present utility model with reference to the drawings.

[0018] As Figures 1-4 shown, a press - point type all - metal locking nut includes a rotating part 1 and a threaded part 2. A through - hole is opened inside the rotating part 1. A card slot 4 is opened at one end of the through - hole. A limiting ring 5 is arranged at one end of the rotating part 1 and on one side of the card slot 4. The threaded part 2 is located inside the through - hole of the rotating part 1 and is slidably connected to the rotating part 1. A threaded hole 6 is opened on the threaded part 2. A clamping block 7 that cooperates with the card slot 4 is arranged at one end of the threaded part 2. A press point 8 is arranged at the other end of the threaded part 2. A compressible washer 9 is arranged inside the limiting ring 5, and the outer surface of the washer 9 abuts against the inner surface of the limiting ring 5.

[0019] The rotating part 1 is a regular hexagonal prism. The rotating part 1 and the limiting ring 5 are made of the same material and are of an integral structure. When the threaded part 2 is placed inside the rotating part 1 and the clamping block 7 on the threaded part 2 can be engaged with the card slot 4 on the rotating part 1, when the rotating part 1 is controlled to rotate by a clamping tool such as a wrench, due to the engagement between the rotating part 1 and the threaded part 2 through the card slot 4 and the clamping block 7, the threaded part 2 can also rotate synchronously with the rotating part 1.

[0020] The pressure points 8 on the threaded portion 2 are the force application points when the threaded portion 2 is extruded. There are three pressure points 8. When the positions of the pressure points 8 are synchronously extruded by the extrusion device, a small amount of deformation will occur to the threads inside the threaded portion 2, so that the threaded portion 2 can be more effectively locked onto the bolt 3.

[0021] The washer 9 is located inside the limit ring 5. After the threaded portion 2 is placed into the rotating portion 1, the washer 9 is then placed into the limit ring 5. There is a large frictional force between the washer 9 and the inner surface of the limit ring 5, so that the washer 9 can be stably held inside the limit ring 5, and the threaded portion 2 is blocked by the washer 9, enabling the threaded portion 2 to be stably installed inside the rotating portion 1.

[0022] After this nut is fixed onto the bolt 3, some of the pre-deformed threads inside the threaded portion 2 are re-extruded and deformed by the bolt 3. When the nut is disassembled and reused, the effect of the pre-thread deformation that can increase the locking force of the nut will be significantly reduced. At this time, the used old threaded portion 2 can be removed from the rotating portion 1, and a new unused threaded portion 2 can be re-placed into the rotating portion 1, so that the nut still has good locking force.

[0023] When this nut is in use, the limit ring 5 is located between the rotating portion 1 and the bolt 3.

[0024] Furthermore, the thickness of the washer 9 is greater than the thickness of the limit ring 5. After this nut is fixed onto the bolt 3, the washer 9 is completely extruded into the inside of the limit ring 5. Through its own deformation, the washer 9 can further improve the locking force of the nut on the bolt 3.

[0025] Furthermore, there are at least two card slots 4. The card slots 4 are evenly arranged circumferentially at one end of the through hole. The number of the clamping blocks 7 is equal to that of the card slots 4, and the depth of the card slots 4 is the same as the thickness of the clamping blocks 7, so as to improve the stability of the threaded portion 2 during rotation.

[0026] Furthermore, the rotating portion 1 has magnetism and can adsorb the threaded portion 2 onto the rotating portion 1, which is convenient for adsorbing the threaded portion 2 onto the rotating portion 1 to reduce the situation where the threaded portion 2 drops and is lost during the installation of the threaded portion 2.

[0027] Furthermore, the thickness of the threaded portion 2 is equal to the thickness of the rotating portion 1. After the pressure points 8 are extruded, the deformed threads in the threaded portion 2 can be completely located inside the through hole of the rotating portion 1. When the threaded portion 2 is connected to the bolt 3, the side wall of the rotating portion 1 can limit the deformation of the outer surface of the threaded portion 2, so that this nut can be effectively locked onto the bolt 3.

[0028] After removing the nut from the bolt 3, when the nut is reused, only the threaded portion 2 needs to be replaced, so that the nut can continue to be stably locked on the bolt 3, thus eliminating the need to replace the entire nut, reducing waste of resources, and being convenient to replace with good use effect.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, they may be fixedly connected, detachably connected or integrally connected; they may be mechanically connected or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A pressure point all-metal locking nut, characterized in that: It includes a rotating part and a threaded part, a through hole is opened inside the rotating part, a slot is opened at one end of the through hole, a limiting ring is arranged at one end of the rotating part and on one side of the slot, the threaded part is located in the through hole of the rotating part and is slidably connected to the rotating part, a threaded hole is opened on the threaded part, a block matching the slot is arranged at one end of the threaded part, a pressure point is arranged at the other end of the threaded part, a compressible gasket is arranged inside the limiting ring, and the outer surface of the gasket abuts against the inner surface of the limiting ring.

2. The pressure point type all-metal locking nut according to claim 1 is characterized in that: The thickness of the gasket is greater than the thickness of the limiting ring.

3. The pressure point type all-metal locking nut according to claim 2 is characterized in that: At least two of the card slots are provided, and the card slots are evenly arranged on the circumference of one end of the through hole. The number of the card blocks is equal to the card slots, and the depth of the card slots is the same as the thickness of the card blocks.

4. The pressure point type all-metal locking nut according to claim 1 is characterized in that: The rotating part is magnetic and can adsorb the threaded part onto the rotating part.

5. The pressure point all-metal locking nut according to any one of claims 1 to 4, characterized in that: The thickness of the threaded portion is equal to the thickness of the rotating portion.

Images