Nut
Technical field
The utility model relates to a kind of fastening piece, and more particularly, it relates to a kind of nut.
Background technique
Nut is the part that is used for playing the role of fastening together with bolt or screw rod are screwed in, very general all using in mechanical field and daily life.
And screw rod is when fixing some parts, due to the long-time outside exposing, some foreign material can be piled up in the screw channel of screw rod, thereby cause screw rod when being connected with nut, due to the existence of foreign material, nut cannot well be screwed on screw rod, causes some unnecessary troubles.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of nut of the foreign material that adhere on can Automatic clearance screw rod.
For achieving the above object, the utility model provides following technological scheme: a kind of nut, comprise nut body, the end face of described nut body is provided with tapped hole, described nut body is along the Hexagon of the sectional shape of tapped hole radial direction, the end face of described nut body is provided with projection, described projection is crooked towards the direction of tapped hole, one end of described projection is fixedly connected with nut body, and projection and the tapped hole of the other end of described projection on the end face of nut body is tangent.
Preferably, described projection is identical with the pitch of tapped hole back to the length of one end of nut body.
Preferably, on the two side that described nut body is parallel to each other, be equipped with chute, in described chute, be provided with the motion bar of slip, the length of described motion bar is greater than the degree of depth of chute, the end face of the described relative tapped hole of chute is provided with restraining groove, in described restraining groove, be provided with the limiting stopper of slip, one end of described limiting stopper is fixedly connected with movable one end.
Preferably, the length sum of described motion bar, limiting stopper is identical with the degree of depth sum of chute, restraining groove.
Compared with prior art, the beneficial effects of the utility model are: nut is aimed to screw rod and insert, and one end of projection can be against on the end face of screw channel, along with rotating nut, projection can be followed and rotate together, because one end of projection is against on the end face of screw channel, rotation along with projection, some stick to foreign material on screw channel just by projection to scraping out, then drop away, this has just reached the effect of cleaning screw rod, prevents that a large amount of foreign material are deposited in screw channel and situation appearance that the nut causing and screw rod cannot well link together.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the utility model nut embodiment's motion bar while stretching out chute;
Fig. 2 is the sectional view of the utility model nut embodiment's motion bar while stretching out chute;
Fig. 3 is the structural drawing of the utility model nut embodiment's motion bar while being positioned at chute;
Fig. 4 is the sectional view of the utility model nut embodiment's motion bar while being positioned at chute.
Reference character: 1, nut body; 2, tapped hole; 3, projection; 4, motion bar; 5, limiting stopper; 6, chute; 7, restraining groove.
Embodiment
Referring to figs. 1 through Fig. 4, the utility model nut embodiment is described further.
A kind of nut, comprise nut body 1, the end face of described nut body 1 is provided with tapped hole 2, described nut body 1 is along the Hexagon of the sectional shape of tapped hole 2 radial direction, the end face of described nut body 1 is provided with projection 3, described projection 3 is crooked towards the direction of tapped hole 2, and one end of described projection 3 is fixedly connected with nut body 1, and projection and the tapped hole 2 of the other end of described projection 3 on the end face of nut body 1 is tangent.
Nut is aimed to screw rod to be inserted, and one end of projection 3 can be against on the end face of screw channel, along with rotating nut, projection 3 can and then rotate together, because one end of projection 3 is against on the end face of screw channel, along with the rotation of projection 3, some stick to foreign material on screw channel just by projection 3 to scraping out, then drop away, this has just reached the effect of cleaning screw rod, prevents that a large amount of foreign material are deposited in screw channel and situation appearance that the nut causing and screw rod cannot well link together.
Projection 3 is identical with the pitch of tapped hole 2 back to the length of one end of nut body 1, and projection 3 can be fitted with the end face of screw channel, and the foreign material in screw channel are all disposed together.
On the two side that nut body 1 is parallel to each other, be equipped with chute 6, in described chute 6, be provided with the motion bar 4 of slip, the length of described motion bar 4 is greater than the degree of depth of chute 6, the end face of described chute 6 relative tapped holes 2 is provided with restraining groove 7, in described restraining groove 7, be provided with the limiting stopper 5 of slip, one end of described limiting stopper 5 is fixedly connected with movable one end, in the time of needs rotating nut, slip limiting stopper 5, make limiting stopper 5 be positioned at restraining groove 7 back to one end of tapped hole 2, at this moment one end of motion bar 4 protrudes from chute 6, at this moment by two motion bars 4, rotating nut eaily just.
The length sum of motion bar 4, limiting stopper 5 is identical with the degree of depth sum of chute 6, restraining groove 7, when not needing rotating nut, slip limiting stopper 5, make limiting stopper 5 be positioned at one end of restraining groove 7 relative tapped holes 2, now motion bar 4 parts are positioned at restraining groove 7, a part is positioned at chute 6, can effectively save space.