Novel combined lock nut

Abstract

The utility model discloses a novel combined locknut, which relates to the technical field of nuts and comprises a first nut and a second nut, a connecting piece is arranged between the first nut and the second nut, and the novel combined locknut solves the problem of equipment failure caused by looseness due to equipment vibration when the existing nut is used. The first nut and the second nut with the opposite internal threads are screwed to the screw, the first nut makes close contact with a part or equipment, then the second nut is screwed to a proper position, and the fixing column is inserted into the connecting hole in one side of the first nut under the springback of the spring; the first nut is connected with the second nut, so that the first nut and the second nut have relative acting force, the first nut and the second nut can be prevented from loosening, and equipment faults caused by loosening of the first nut and the second nut when equipment vibrates are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a novel combined anti-loosening nut. Background Art

[0002] A nut is a common mechanical part, usually used on a bolt or screw that matches a thread. It has an internal threaded hole and can be rotated to match the threaded part to achieve the function of tightening and fixing.

[0003] When existing nuts are used on some equipment that vibrates during operation, the vibrations generated by the equipment will cause the nuts to be subjected to external rotational force, thereby causing the nuts to loosen. In severe cases, the nuts and screws will fall off, causing the connection of the equipment to loosen or even malfunction. Utility Model Content

[0004] The utility model aims to provide a novel combined anti-loosening nut, which solves the problem that the existing nuts in the background technology may become loose due to equipment vibration during use, resulting in equipment failure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of combined anti-loosening nut, comprising a first nut and a second nut, a connecting piece is provided between the first nut and the second nut, the internal threads of the first nut and the second nut are arranged in opposite directions, a side of the first nut close to the second nut is provided with multiple groups of connecting holes at equal intervals along its circumferential direction, the connecting piece comprises a connecting ring slidably arranged inside the second nut, a side of the connecting ring facing the first nut is provided with multiple groups of fixing columns at equal intervals along its circumferential direction, and the fixing columns are adapted to the connecting holes.

[0006] Preferably, a circular groove is provided inside the second nut, the connecting ring is slidably connected to the inside of the circular groove, a spring is provided inside the circular groove, and two ends of the spring are respectively connected to the inner wall of the circular groove and the connecting ring.

[0007] Preferably, a slide groove communicating with the circular groove is provided on the outer side of the second nut, and a slider is provided on the outer side of the connecting ring. The slider is slidably connected to the inside of the slide groove, and the slider extends out of the outer side of the slide groove.

[0008] Preferably, a built-in cavity is provided inside the second nut, and an annular block is fixedly disposed inside the built-in cavity.

[0009] Preferably, a plurality of groups of arc-shaped protrusions are arranged at equal intervals on the inner side of the annular block along its circumferential direction, and the annular block and the arc-shaped protrusions are both components made of nylon material.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model provides a novel combined anti-loosening nut, which is characterized by respectively tightening a first nut and a second nut with opposite internal threads onto a screw, and making the first nut in close contact with a part or equipment, and then tightening the second nut to a suitable position, inserting a fixing column into a connecting hole on one side of the first nut under the rebound of a spring, so that the first nut is connected to the second nut, and making the first nut and the second nut exert relative forces, thereby preventing the first nut and the second nut from loosening, and avoiding loosening thereof when the equipment vibrates and causing equipment failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the fixed column structure of the utility model;

[0014] Figure 3 It is a cross-sectional view of the second nut of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the connector of the utility model;

[0016] Figure 5 This is a schematic diagram of the annular block structure of the utility model.

[0017] In the figure: 1, first nut; 11, connecting hole; 2, second nut; 21, circular groove; 22, slide groove; 23, built-in cavity; 3, connecting piece; 31, fixing column; 32, connecting ring; 33, slider; 34, spring; 35, annular block; 351, arc-shaped protrusion. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in 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 in 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.

[0019] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0020] Combination Figure 1-Figure 4The utility model provides a new type of combined anti-loosening nut, including a first nut 1 and a second nut 2, a connecting piece 3 is arranged between the first nut 1 and the second nut 2, the internal threads of the first nut 1 and the second nut 2 are arranged in opposite directions, a side of the first nut 1 close to the second nut 2 is provided with multiple groups of connecting holes 11 at equal intervals along its circumferential direction, the connecting piece 3 includes a connecting ring 32 slidably arranged inside the second nut 2, a side of the connecting ring 32 facing the first nut 1 is provided with multiple groups of fixing columns 31 at equal intervals along its circumferential direction, and the fixing columns 31 are adapted to the connecting holes 11.

[0021] Specifically, first, tighten the first nut 1 onto the screw clockwise, and squeeze the fixing column 31 into the interior of the second nut 2. After squeezing, tighten the second nut 2 onto the screw counterclockwise. When the second nut 2 is in a suitable position, insert the fixing column 31 into the interior of the connecting hole 11. Since the internal threads of the first nut 1 and the second nut 2 are arranged in opposite directions, when the equipment vibrates, the first nut 1 or the second nut 2 is connected through the fixing column 31. Any loosening of either party will cause the other party to generate an opposite force. Since the fixing column 31 is located inside the connecting hole 11, the first nut 1 and the second nut 2 have a relative force, thereby preventing the first nut 1 and the second nut 2 from loosening, and effectively avoiding loosening of the equipment during vibration to cause equipment failure.

[0022] The utility model is further described below in conjunction with embodiments.

[0023] Combination Figure 3 A circular groove 21 is provided inside the second nut 2, and the connecting ring 32 is slidably connected to the inside of the circular groove 21. A spring 34 is provided inside the circular groove 21, and the two ends of the spring 34 are respectively connected to the inner wall of the circular groove 21 and the connecting ring 32.

[0024] In this embodiment, when the fixing column 31 is squeezed into the interior of the second nut 2, the fixing column 31 will drive the connecting ring 32 to slide inside the circular groove 21, so that the spring 34 is squeezed. When the second nut 2 is tightened to a suitable position, the spring 34 rebounds to squeeze the fixing column 31 into the interior of the connecting hole 11, so that the fixing column 31 is inserted into the interior of the connecting hole 11, and the first nut 1 can be connected to the second nut 2.

[0025] Combination Figure 3 and Figure 4 A slide groove 22 connected to the circular groove 21 is provided on the outer side of the second nut 2 , and a slider 33 is provided on the outer side of the connecting ring 32 . The slider 33 is slidably connected to the inside of the slide groove 22 , and the slider 33 extends out of the outer side of the slide groove 22 .

[0026] In this embodiment, when the fixing column 31 is squeezed into the second nut 2, the slider 33 can be pulled. When the slider 33 is pulled, the slider 33 slides inside the slide groove 22, and the slider 33 drives the connecting ring 32 to slide inside the circular groove 21, so that the spring 34 can be squeezed.

[0027] Combination Figure 3 A built-in cavity 23 is provided inside the second nut 2 , and an annular block 35 is fixedly disposed inside the built-in cavity 23 .

[0028] In this embodiment, when the second nut 2 is tightened onto the screw, the friction between the second nut 2 and the screw can be increased by the annular block 35, thereby further increasing the anti-loosening effect.

[0029] Combination Figure 3 and Figure 5 A plurality of groups of arc-shaped protrusions 351 are arranged at equal intervals on the inner side of the annular block 35 along its circumferential direction. The annular block 35 and the arc-shaped protrusions 351 are both made of nylon.

[0030] In this embodiment, when the second nut 2 is tightened onto the screw, the threaded portion of the screw squeezes the arc-shaped protrusion 351. The arc-shaped protrusion 351 increases the contact area between the annular block 35 and the screw, making it fit more closely to the screw. The arc-shaped protrusion 351 will generate additional friction when the second nut 2 is under pressure, thereby preventing the second nut 2 from loosening.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel combined anti-loosening nut, comprising a first nut (1) and a second nut (2), characterized in that: A connecting piece (3) is provided between the first nut (1) and the second nut (2); the internal threads of the first nut (1) and the second nut (2) are arranged in opposite directions; a side of the first nut (1) close to the second nut (2) is provided with a plurality of connecting holes (11) at equal intervals along its circumferential direction; the connecting piece (3) comprises a connecting ring (32) slidably arranged inside the second nut (2); a side of the connecting ring (32) facing the first nut (1) is provided with a plurality of fixing columns (31) at equal intervals along its circumferential direction; the fixing columns (31) are adapted to the connecting holes (11).

2. A novel combined anti-loosening nut according to claim 1, characterized in that: A circular groove (21) is provided inside the second nut (2), the connecting ring (32) is slidably connected to the inside of the circular groove (21), a spring (34) is provided inside the circular groove (21), and two ends of the spring (34) are respectively connected to the inner wall of the circular groove (21) and the connecting ring (32).

3. A new type of combined anti-loosening nut according to claim 2, characterized in that: The outer side of the second nut (2) is provided with a slide groove (22) which is connected with the circular groove (21); the outer side of the connecting ring (32) is provided with a slider (33); the slider (33) is slidably connected to the inside of the slide groove (22), and the slider (33) extends out of the outer side of the slide groove (22).

4. A novel combined anti-loosening nut according to claim 1, characterized in that: The second nut (2) is provided with a built-in cavity (23) inside, and an annular block (35) is fixedly arranged inside the built-in cavity (23).

5. A new type of combined anti-loosening nut according to claim 4, characterized in that: A plurality of groups of arc-shaped protrusions (351) are arranged at equal intervals on the inner side of the annular block (35) along its circumferential direction. The annular block (35) and the arc-shaped protrusions (351) are both components made of nylon material.

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