CN206723230U - A kind of plain washer - Google Patents

Abstract

The utility model discloses a kind of plain washer, include washer body, the lower surface of the washer body is provided with depression, is filled with the elastic insert for protruding from the depression in the depression, the cross section that the elastic insert protrudes from the part of the depression is arched.The utility model has advantages below and effect：Washer body upper surface can increase skin-friction coefficient in frosted shape, and the elastic insert on lower surface can eliminate nut or thread pitch when bolt head connects, finally with good anti-loosing effect；The anti oxidation layer on washer body can also play oxidation resistant effect simultaneously, avoid washer body from corroding.

Description

A kind of plain washer

Technical field

Fastener areas is the utility model is related to, more particularly to a kind of plain washer.

Background technology

Plain washer is typically variously-shaped thin pieces, has and reduces friction, prevent leakage, isolate, prevent from releasing or disperse Pressure etc. acts on.

At present, Authorization Notice No. CN202579598U, authorized announcement date disclose for the Chinese patent on December 5th, 2012 A kind of anti-loosing flat gasket, including plain washer body, wherein, on upper and lower two end faces of plain washer body it is equipped with multiple footpaths Raised item is moved back to locking, and the locking raised item that moves back of radial direction on each end face is circumferential equidistantly distributed.

The upper and lower ends face of this anti-loosing flat gasket is provided with that multiple radial directions are locking to move back raised item, when will be this locking flat When packing ring is placed between nut or head of screw and connected piece, although being avoided that nut or screw loosen, Can be smaller because of the surface area in the upper/lower terminal face of anti-loosing flat gasket, anti-loosing flat gasket is caused to nut, head of screw and is connected The pressure increase of part, so as to disperse pressure, damage occurs in the surface of final connected piece.

Utility model content

The purpose of this utility model is to provide a kind of plain washer, can be played in the case where ensureing scattered pressure locking Effect.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of plain washer, including There is washer body, the lower surface of the washer body is provided with depression, is filled with the depression and protrudes from the depression Elastic insert, the cross section that the elastic insert protrudes from the part of the depression are arched.

By using such scheme, it is recessed by being set in the lower surface of washer body, while filling elasticity in the valley Bed course, when washer body is placed between nut and connected piece, is attached between head of screw and connected piece, packing ring sheet Elastic insert stress on body produces a reaction force after producing deformation, so as to eliminate nut or when head of screw connects Thread pitch, so as to have the function that after fixation it is locking；And elastic insert is only distributed on the lower surface of washer body, lead to The elastic insert crossed on washer body lower surface is contradicted when on connected piece, connected piece surface will not be caused to wear, together When the elastic insert part that protrudes from depression cross section it is arched so that middle part is concentrated mainly on during elastic insert stress, Irregular deformation will not be also presented after being expanded towards the week side of boss in elastic insert after stress, so as to which washer body will not be caused in fixation After shake.

It is of the present utility model to be further arranged to：The depression is distributed in reticulate pattern.

By using such scheme, depression is distributed in reticulate pattern so that the elastic insert in depression is also in reticulate pattern It is uniformly distributed, so as to stable anti-loosing effect.

It is of the present utility model to be further arranged to：The recess sets the convex being embedded into the elastic insert Point, the positioning convex point are located in the depression.

By using such scheme, it is embedded into the positioning convex point of recess in elastic insert so that positioning convex point can Elastic washer is played and strengthens fixed effect, while positioning convex point is in depression so that positioning convex point will not protrude from pad Enclose the end face of body and influence to use.

It is of the present utility model to be further arranged to：The upper surface of the washer body is in frosted shape.

By using such scheme, the upper surface of packing ring is in frosted shape, by increasing capacitance it is possible to increase the coefficient of friction of packing ring upper surface, is made In cause packing ring upper surface be in contact with nut or head of screw so that between nut or head of screw and packing ring with compared with Big frictional force and be not susceptible to loosen.

It is of the present utility model to be further arranged to：Inner ring edge, the outer ring of the washer body of the washer body Edge is provided with fillet.

By using such scheme, it is provided with the outer ring edge of the inner ring edge of washer body, washer body Fillet, avoid scratching skin when washer body is taken.

It is of the present utility model to be further arranged to：The surface of the washer body is provided with anti oxidation layer.

By using such scheme, the anti oxidation layer on washer body causes washer body to have good anti-oxidant effect Fruit, so as to avoid being oxidized corrosion.

In summary, the utility model has the advantages that：Washer body upper surface can increase table in frosted shape Face coefficient of friction, the elastic insert on lower surface can eliminate nut or thread pitch when bolt head connects, and finally has Good anti-loosing effect；The anti oxidation layer on washer body can also play oxidation resistant effect simultaneously, avoid washer body Corrode.

Brief description of the drawings

Fig. 1 is structural representation one of the present utility model, for embodying the upper end surface structure of washer body；

Fig. 2 is structural representation two of the present utility model, for embodying the lower surface structure of washer body；

Fig. 3 is sectional view of the present utility model；

Fig. 4 is the partial enlarged drawing at A in Fig. 3, for embodying the structure of recess.

In figure：1st, washer body；2nd, it is recessed；3rd, elastic insert；4th, positioning convex point；5th, fillet；6th, anti oxidation layer.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

A kind of plain washer, as depicted in figs. 1 and 2, including washer body 1, washer body 1 is in flat ring-type, packing ring sheet The upper surface of body 1 is in frosted shape, and the lower surface of washer body 1 is provided with the depression 2 being distributed in reticulate pattern, is filled in depression 2 Flexible bed course 3, the part that elastic insert 3 protrudes from the lower surface of washer body 1 is arched, and the maximum protrusion of elastic insert 3 Highly it is less than 1/10th of the thickness of washer body 1, elastic insert 3 is made up of Ludox.

As shown in Figure 3 and Figure 4, on the surface of washer body 1 by anti-oxidant treatment, anti-oxidant technological process is dress basket, Pickling, washing, preheating, oxidation, washing, saponification, drying, boshing oil, leaching deep fat, drying, so as in the surface shape of washer body 1 Into anti oxidation layer 6.In the lower surface of packing ring formed with the depression 2 in reticulate pattern, one in the depression 2 positioned at washer body 1 Body formed to have positioning convex point 4, positioning convex point 4 is hemispherical and is embedded in elastic insert 3.Simultaneously in the inner ring of washer body 1 Edge is also formed with fillet 5 formed with fillet 5 in the outer ring edge of washer body 1.

Operation instruction：When connecting connected piece by screw bolt and nut, by the way that washer body 1 is set on bolt, So that the end face of flexible bed course 3 is contradicted on connected piece on washer body 1, so that nut is tightened on bolt, When it is in the end face of frosted shape that nut, which pushes against washer body 1, washer body 1 has larger friction in the end face of frosted shape Coefficient so that the frictional force between nuts and washers body 1 is larger, while during nut is tightened, the stress of elastic insert 3 Deform upon, thread pitch when nut thread connects can be eliminated by elastic force, so as to further function as locking effect.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims (6)

1. a kind of plain washer, includes washer body（1）, it is characterised in that：The washer body（1）Lower surface be provided with Depression（2）, the depression（2）Interior be filled with protrudes from the depression（2）Elastic insert（3）, the elastic insert（3）Protrusion In the depression（2）Part cross section it is arched.

A kind of 2. plain washer according to claim 1, it is characterised in that：The depression（2）It is distributed in reticulate pattern.

A kind of 3. plain washer according to claim 2, it is characterised in that：The depression（2）Place's setting is embedded into the bullet Property bed course（3）Interior positioning convex point（4）, the positioning convex point（4）Positioned at the depression（2）It is interior.

A kind of 4. plain washer according to claim 3, it is characterised in that：The washer body（1）Upper surface be in frosted Shape.

A kind of 5. plain washer according to claim 1, it is characterised in that：The washer body（1）Inner ring edge, institute State washer body（1）Outer ring edge be provided with fillet（5）.

A kind of 6. plain washer according to claim 1, it is characterised in that：The washer body（1）Surface be provided with it is anti- Oxide layer（6）.