CN85202243U

CN85202243U - Improved self-locking nut

Info

Publication number: CN85202243U
Application number: CN 85202243
Authority: CN
Inventors: 贾恩卡罗·特拉米萨尼
Original assignee: Alian Interational Ag
Current assignee: Alian Interational Ag
Priority date: 1985-06-14
Filing date: 1985-06-14
Publication date: 1986-09-24

Abstract

The utility model discloses an improved self-locking nut (5). The utility model comprises an upper hoop ring (7) which is provided with thread. A plurality of longitudinal slot slits (10) are arranged on the hoop ring and are arranged at intervals, so a plurality of circle arc segments (8) can be formed, and the circle arc segments (8) are compressed by a spiral outer spring (13). The slot slits can be upwards extended to a V-shaped or a U-shaped, so the circle arc segments are prevented to contact with each other.

Description

Improved self-locking nut

The present invention relates to a kind of improved self-locking nut.Particularly it relates to a class self-locking nut, and this class nut has one by the cylindrical termination of spiral spring compression.

The more known self-locking nut that types are arranged, they have the termination of a cylindrical or analogous shape, some vertical lines of rabbet joint are arranged on it, this termination is divided into some arc sections, the shape of these arc sections can flexibly be compressed them by the outer spring of the spirality of a radial effect.

In the 3rd, 417, No. 801 patents of the U.S. that transfers French Bemex, describe a kind of in this class nut, will illustrate it now.

Though this nut can think that effectively still there is the shortcoming on the certain operations in it aspect shockproof, in the time of particularly will reusing after this nut was used several times, these shortcomings become especially obviously again.In fact because the vertical line of rabbet joint on cylindrical termination or cranse is very narrow, so infiltrate during use the dirt of this line of rabbet joint and foreign material after screwing off nut since cranse be subjected to outside spring compression and can not be eliminated.In order to reuse nut, just need carry out expensive for a long time cleaning with pressurized air solvent or mechanical means.This is first shortcoming in more aforementioned shortcomings.

In addition, because two walls of the line of rabbet joint are in close proximity to each other, so the scope of its resiliently deformable.Promptly very limited by the scope of length of spring compressed.This be because crooked diametrically to a certain degree after, the upper limb of each arc section will contact with each other.Thisly cranse compressibility restriction has structurally been weakened this nut some have been had the screw rod of " inclination " screw thread or the adaptability of screw.This is an even more serious shortcoming.

One of purpose of the present invention provides follow-on self-locking nut of mentioning above a kind of to eliminate or to alleviate aforesaid shortcoming, in this self-locking nut, the dirt that accumulates in during use in the line of rabbet joint can automatically exclude when screwing off nut or thereafter, do not need to remove especially work, this nut also has the bigger cranse of a kind of degree of compressibility, makes it can adapt to more multiple screw.

These and other purpose and advantage a kind of improved self-locking nuts according to the present invention that show in will illustrating below of the present invention have been realized, this nut comprises a female cranse of going up, have on the cranse some longitudinally the line of rabbet joint form several by the arc section of the outer spring compression of a spirality, this improved self-locking nut feature is, the described line of rabbet joint broadening forming V-shape that makes progress contacts with each other to prevent each arc section.

Now with way of example and with reference to a description of drawings illustrated embodiments of the present invention, wherein:

Fig. 1 is the front view of a kind of nut of making according to the present invention, and among the figure, nut has been screwed on the screw rod;

Fig. 2 is the plan view of the load module of Fig. 1;

Fig. 3 is the front view of second kind of embodiment of the nut of making according to the present invention.

Fig. 4 is the plan view of the load module of Fig. 3,

Fig. 5 is the front view of the third embodiment of the nut of making according to the present invention;

Fig. 6 is the plan view of the load module of Fig. 5.

See figures.1.and.2, mark (5) is a nut that cylindrical upper end or cranse (7) are arranged, and has an internal thread mutually continuous with the internal thread of nut in the cranse.As shown in the figure, this nut has been screwed on the screw rod (6).

According to the present invention, some V-shaped groove seams (10) are arranged on the cranse (7), form the arc section (8) that there are an external fin (9) some upper ends.Upper surface at nut has a recess (11) to hold a helical spring (13), and this spring radially tightens up arc section (8) around cranse (7) to screw rod (6).

When screwing off nut, the line of rabbet joint (10) is gone up the V-arrangement of broadening and the considerable rebound effect of arc section (8) can be got rid of the foreign material of accumulation during use.

Fig. 3 and Fig. 4 represent another embodiment of the present invention, and it is similar with the above embodiments.But some lines of rabbet joint that parallel side wall is arranged (20) are arranged on its cranse (7a), and the distance of these sidewall spaces is than typical big at interval in the common nut.

In fact, even it is vertical keeping the sidewall of the line of rabbet joint, as long as change the size relationship between the line of rabbet joint (20) and the arc section (17) widely, and redesign the size of cranse (7a) fully, still may when screwing off nut, make arc section that one bigger resilience is arranged, thereby remove the dirt that penetrates in the line of rabbet joint automatically.

Mentioned in about first embodiment of the present invention, the upper limb of each arc section is not met this condition mutually and still can be accomplished yet after screwing on nut.

Fig. 5 and Fig. 6 represent according to the present invention the 3rd embodiment of the nut made, and it is caught up with, and to state embodiment similar, but the line of rabbet joint (30) of some dual U-shaped is arranged on its cranse (7b).Relation between the relative height of bigger U-shaped above it and following narrower U-shaped can change very big.Change to opposite relation from such relation the shown in the figure always.In other words, top U-shaped can broad and very short, and following U-shaped can be narrower and very high.Use this way, needn't change other conditions, just can change the braking square of nut.

From the explanation of front, can find out significantly the advantage of the self-locking nut structure of making according to the present invention. Especially will point out that the nut of common same-type needs to clean, and this nut just needn't clean and can reuse immediately.

Claims

1, a kind of improved self-locking nut.It comprises a threaded cranse of going up, and has some longitudinal slots to be divided into several by the arc section of spring compression outside the spirality on cranse.It is characterized in that the described line of rabbet joint broadening forming V-shape that makes progress contacts with each other to prevent described arc section.

According to the described improved self-locking nut of claim 1, it is characterized in that 2, the described line of rabbet joint is an overlapping U-shaped, its width is enough to prevent that described arc section from contacting with each other.

According to the described improved self-locking nut of claim 1, it is characterized in that 3, the described line of rabbet joint is an overlapping dual U-shaped, the U-shaped above it is wideer than following U-shaped.