CN2713203Y - Combined nut - Google Patents

Abstract

The utility model relates to a fastener, in particular to a combined nut. The combined nut is composed of a nut and a spherical washer. The side surface of the lower end of the nut is provided with an annular slot, and the spherical washer is clamped and sheathed in the annular slot and can rotate relative to the nut; the distance between the upper side surface of the annular slot and the lower end surface of the nut is shorter than the height of the spherical washer. The combined nut has good fastening and anti-loosing effect; at the same time, with an original faced washer and spring washer being replaced by the spherical washer, the cost is reduced; moreover, in the combined nut, the spherical washer is clamped and sheathed in the annular slot of the nut and is connected with the nut, so the combined nut is portable and is convenient in use.

Description

Modular nut

Technical field

The utility model relates to a kind of fastenings, particularly modular nut.

Technical background

Nut is the fastenings that uses with bolt matching, in use, in order to reach preferable fastening and anti-loosing effect, usually will be with faced washer and spring washer and nut combinations use, like this in a fastening piece of forming by bolt and nut, also comprised the such finding of faced washer and spring washer, this is to using and carrying and make troubles.

The model utility content

Technical problem to be solved in the utility model provides a kind of modular nut, as fastening piece and bolt matching use the time, need not the thin part that looses of faced washer and spring washer and so on, can reach preferable fastening and anti-loosing effect.

Modular nut described in the utility model, form by nut and spherical washer, offer circular groove in the nut lower end side, spherical washer is fastened in this circular groove and can rotates with respect to nut, and the distance between the upper side of circular groove and nut lower end surface is less than the height of spherical washer.

Spherical washer in this modular nut is equivalent to a dish-shaped spring, rotate when fastening at nut, spherical washer compressive deformation and nut is produced rebounding force, can prevent nut loosening, and the spherical washer after the distortion is equivalent to faced washer, so this spherical washer has the function of primary plane packing ring and spring washer simultaneously, thereby makes this modular nut have preferable fastening and anti-loosing effect; Simultaneously replace primary plane packing ring and two parts of spring washer by spherical washer, make its cost obtain reducing to a certain degree, and in this modular nut, spherical washer is fastened in the circular groove of nut and connects together with nut, uses and carries all very convenient.

Description of drawings

Now in conjunction with the accompanying drawings the utility model is described in further detail.

Fig. 1 is the plan view of a kind of concrete structure of modular nut described in the utility model;

Fig. 2 is the plan view of Fig. 1.

Embodiment

As shown in Figure 1 and Figure 2, this modular nut is made up of outer-hexagonal nut 1 and spherical washer 2, offer circular groove 3 in nut 1 lower end side, spherical washer 2 is fastened in this circular groove 3 and can rotates with respect to nut 1, and the distance that the upper side 5 of circular groove 3 and nut 1 lower end surface are 4 is less than the height of spherical washer 2, to guarantee spherical washer 2 before compressive deformation, nut 1 lower end surface 4 does not contact with the fastener surface.

Claims (1)

1, a kind of modular nut, it is characterized in that: form by nut (1) and spherical washer (2), offer circular groove (3) in the nut lower end side, spherical washer is fastened in this circular groove and can rotates with respect to nut, and the distance between the upper side of circular groove (5) and nut lower end surface (4) is less than the height of spherical washer.

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