Lock nut

Abstract

The utility model discloses a kind of lock nuts, it is related to nut field, and its technical scheme main points are as follows: including the nut main body of regular hexagonal body, annular groove is set on the outer peripheral wall of nut main body, the distance of annular groove to the upper and lower sides on nut main body is equal, connecting ring is rotatably connected in annular groove, threaded hole is set on connecting ring, six through holes are set on annular groove groove bottom, the depth of through hole is less than the depth of threaded hole, limiting column is threadedly connected in threaded hole. By setting connecting ring, the rotating of connecting ring can control the position of limiting column in threaded hole, so that the position of nut main body tightening can be changed according to actual operation environment, convenient for operator to operate, connecting ring and nut main body are made of carbon steel, so as to ensure the strength of nut main body and connecting ring as a whole.

Description

Technical Field

[0001] This utility model relates to the field of nuts, and more specifically, to a locking nut. Background Technology

[0002] A nut is a common mechanical part, usually used in conjunction with a bolt or thread to fasten two parts with through holes, serving to fix and connect objects.

[0003] Some nuts have anti-loosening structures to improve the stability of the nut connection. For example, a threaded hole is opened on the side wall of the nut. By screwing a limit bolt into the threaded hole, the stability of the nut is improved by the resistance of the limit bolt. However, the limit bolt is only set on one side of the nut, and the orientation of the limit bolt is difficult to control during the tightening process, which may cause the limit bolt to be oriented towards a position that is difficult to tighten.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a locking nut.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a locking nut, comprising a nut body in the shape of a regular hexagon, an annular groove formed on the outer peripheral wall of the nut body, the axial width of the annular groove being less than 1 / 2 of the thickness of the nut body, the distance from the annular groove to the upper and lower sides of the nut body being equal, a connecting ring rotatably connected in the annular groove, the connecting ring having a threaded hole, six through holes formed on the bottom of the annular groove, the six through holes being arranged in a circular array around the center line of the nut body, the depth of the through holes being less than the depth of the threaded holes, and a limit post being threadedly connected in the threaded holes.

[0007] The present invention is further configured such that: the outer peripheral wall of the connecting ring is provided with six planes, the six planes are arranged in a ring array with the center line of the nut body as the axis, the threaded hole is opened on one of the planes, and when the plane is flush with the outer wall of the nut body, the threaded hole is aligned with one of the through holes.

[0008] The present invention is further configured such that: an annular sliding groove is formed on the upper inner wall of the annular groove; a feedback protrusion located in the sliding groove is fixedly connected to the connecting ring; and six elastic strips are fixedly connected to the inner wall of the sliding groove, with the six elastic strips respectively located above the six through holes.

[0009] The present invention is further configured such that: a plurality of recessed points are provided on the outer peripheral wall of the connecting ring, and the recessed points are located between two adjacent planes.

[0010] The present invention is further configured such that a cross groove is provided at one end of the limiting post facing away from the center of the nut body.

[0011] The present invention is further configured such that the annular groove is provided with a rounded corner at the edge of the outer wall of the nut body.

[0012] In summary, this utility model has the following beneficial effects: Because the annular groove is located in the middle of the outer circumferential wall of the nut body, there is still enough space on the outer circumferential wall of the nut body to support the wrench. This ensures that the opening of the annular groove does not affect the tightening of the nut body. After the nut body is tightened, the position of the threaded hole can be controlled by rotating the connecting ring. At this time, the limiting post is completely located in the threaded hole. When the end of the threaded hole facing away from the center hole is facing a position with relatively large operating space, align the threaded hole with the corresponding through hole and rotate the limiting post towards the center hole. This allows the limiting post to be inserted into the through hole. The tightening of the limiting post prevents the nut from loosening. By adjusting the position of the limiting post, it is convenient for people to adjust it according to the actual position of the nut body, thus making it convenient to tighten the limiting post. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 for Figure 2 Enlarged view of part A in the middle.

[0014] In the diagram: 1. Nut body; 2. Ring groove; 3. Connecting ring; 4. Threaded hole; 5. Through hole; 6. Limiting post; 7. Plane; 8. Sliding groove; 9. Feedback protrusion; 10. Elastic strip; 11. Recessed point; 12. Cross groove. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] A type of lock nut, such as Figure 1 , Figure 2 and Figure 3As shown, the nut body 1 is a regular hexagonal shape. A central hole is located at the center of the nut body 1, and an internal thread is formed on the inner circumferential wall of the central hole. The nut body 1 is connected to an external structure through the central hole. An annular groove 2 is formed on the outer circumferential wall of the nut body 1. The axial width of the annular groove 2 is less than half the thickness of the nut body 1. The distance from the annular groove 2 to the upper and lower sides of the nut body 1 is equal. A connecting ring 3 is rotatably connected within the annular groove 2. The connecting ring 3 can rotate along the axial direction of the nut body 1. A threaded hole 4 is formed on the outer circumferential wall of the connecting ring 3. Six through holes 5 are formed on the bottom of the annular groove 2. One end of each through hole 5 communicates with the central hole. The six through holes 5 are arranged in a circular array around the centerline of the nut body 1. The depth of each through hole 5 is less than the threaded hole depth. The depth of hole 4, the internal thread of threaded hole 4 is connected to limit post 6. People tighten the nut with a wrench. Because the annular groove 2 is in the middle position on the outer peripheral wall of the thread body, there is still enough space on the outer peripheral wall of the nut body 1 to support the wrench. The opening of the annular groove 2 will not affect the tightening of the nut body 1. After tightening the nut body 1, people can control the orientation of threaded hole 4 by rotating connecting ring 3. At this time, limit post 6 is completely located in threaded hole 4. When the end of threaded hole 4 away from the center hole is facing a position with relatively large operating space, align threaded hole 4 with the corresponding through hole 5, rotate limit post 6 towards the center hole, so that limit post 6 is inserted into through hole 5, realizing the function of preventing nut from loosening.

[0017] like Figure 1 , Figure 2 and Figure 3 As shown, the outer peripheral wall of the connecting ring 3 has six planes 7, which are arranged in a circular array around the center line of the nut body 1. A threaded hole 4 is opened on one of the planes 7. When the plane 7 is flush with the outer wall of the nut body 1, the threaded hole 4 is aligned with one of the through holes 5. The planes 7 provide feedback; during the rotation of the connecting ring 3, when the plane 7 containing the threaded hole 4 is flush with one of the outer walls of the nut body 1, it indicates that the threaded hole 4 is aligned with the through hole 5. An annular sliding groove 8 is opened on the upper inner wall of the annular groove 2. A feedback protrusion 9 located within the sliding groove 8 is fixedly connected to the connecting ring 3. The inner wall of the sliding groove 8... Six elastic strips 10 are fixedly connected to the wall, and the six elastic strips 10 are respectively located above the six through holes 5. The feedback protrusion 9 can slide smoothly in the sliding groove 8. When the feedback protrusion 9 slides to the position of the elastic strip 10, the elastic strip 10 will abut against the feedback protrusion 9, which increases the resistance when the feedback protrusion 9 slides, thereby increasing the resistance to the rotation of the connecting ring 3. With this setting, when people adjust the state of the plane 7, the same force will be applied and the rotation range of the connecting ring 3 will be smaller, which makes it easier to control the alignment of the plane 7. At the same time, because the rotation of the connecting ring 3 is more difficult, the connecting ring 3 is less likely to rotate during the subsequent rotation of the limiting post 6, making it more stable.

[0018] like Figure 1 and Figure 2 As shown, several recessed points 11 are provided on the outer peripheral wall of the connecting ring 3. The recessed points 11 are located between two adjacent planes 7. The setting of the recessed points 11 increases the friction coefficient of the outer peripheral wall of the connecting ring 3, thereby facilitating the rotation of the connecting ring 3. A cross groove 12 is provided at the end of the limiting post 6 facing away from the center of the nut body 1. The opening of the cross groove 12 allows people to rotate the limiting post 6 with a cross screwdriver, thereby controlling the movement of the limiting post 6. The ring groove 2 is provided with rounded corners at the edge of the outer wall of the nut body 1. The rounded corner design makes the edge more rounded and prevents discomfort when pressing. Both the connecting ring 3 and the nut body 1 are made of carbon steel, thereby ensuring the overall strength of the nut body 1 and the connecting ring 3.

[0019] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A locking nut, characterized in that: The nut body (1) is a regular hexagon. An annular groove (2) is formed on the outer peripheral wall of the nut body (1). The axial width of the annular groove (2) is less than 1 / 2 of the thickness of the nut body (1). The distance from the annular groove (2) to the upper and lower sides of the nut body (1) is equal. A connecting ring (3) is rotatably connected in the annular groove (2). A threaded hole (4) is formed on the connecting ring (3). Six through holes (5) are formed on the bottom of the annular groove (2). The six through holes (5) are arranged in a ring array with the center line of the nut body (1) as the axis. The depth of the through holes (5) is less than the depth of the threaded hole (4). A limit post (6) is threadedly connected in the threaded hole (4).

2. The anti-loosening nut according to claim 1, characterized in that: The outer peripheral wall of the connecting ring (3) is provided with six planes (7). The six planes (7) are arranged in a ring array with the center line of the nut body (1) as the axis. The threaded hole (4) is opened on one of the planes (7). When the plane (7) is flush with the outer wall of the nut body (1), the threaded hole (4) is aligned with one of the through holes (5).

3. The anti-loosening nut according to claim 1, characterized in that: The annular sliding groove (8) is provided on the upper inner wall of the annular groove (2). A feedback protrusion (9) located in the sliding groove (8) is fixedly connected to the connecting ring (3). Six elastic strips (10) are fixedly connected to the inner wall of the sliding groove (8). The six elastic strips (10) are respectively located above the six through holes (5).

4. The anti-loosening nut according to claim 2, characterized in that: The outer peripheral wall of the connecting ring (3) is provided with a number of recessed points (11), and the recessed points (11) are located between two adjacent planes (7).

5. The anti-loosening nut according to claim 1, characterized in that: The limiting post (6) has a cross groove (12) at one end facing away from the center of the nut body (1).

6. The anti-loosening nut according to claim 1, characterized in that: The annular groove (2) is provided with rounded corners at the edge of the outer wall of the nut body (1).

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