CN203516395U

CN203516395U - Gasket

Info

Publication number: CN203516395U
Application number: CN201320453971.2U
Authority: CN
Inventors: 金弋
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-26
Filing date: 2013-07-26
Publication date: 2014-04-02
Anticipated expiration: 2023-07-26

Abstract

The utility model relates to a gasket which comprises two gasket units which are meshed through the inner side faces. The gasket units cock horizontally from the center to the periphery, side oblique toothed faces are arranged on the outer side faces and the inner side faces of the gasket units respectively, and the side oblique toothed faces on the outer side faces are radiate side oblique toothed faces which are distributed in a staggered mode. The gasket has the advantages that the gasket units horizontally cock from the center to the periphery by a certain angle, a gap is formed after the two gasket units are meshed, the gasket units are pressed to be flat when the gasket is installed and used, the gasket units have a tendency to restore the original shape due to deformation, the gap formed due to abrasion of contact faces can be filled, and the fastening effect can be durably maintained.

Description

Packing ring

Technical field

The utility model relates to a kind of packing ring.

Background technique

Packing ring is conventional fasteners, is conventionally arranged between connected piece and nut.Be generally pancake metal ring, be used for protecting the surface of connected piece not abraded by nut, disperse the pressure of nut to connected piece.Existing a kind of lock washer, it is comprised of two monolithic pads.Outer side surface is with radial repousse, and inner side surface is pitch face.When assembling, between the pitch face of inner side, relatively, the radial repousse of outer side surface becomes engagement with two ends surface of contact, when link is vibrated, and while making bolt that loosening trend occur, only allow the changing of the relative positions relatively between pitch face inside two packing rings, produce lifting tension force, thereby reach locking.But this kind of packing ring is worn after having grown service time, occur laxly, cannot lock.

Model utility content

In order to overcome the use for a long time of above-mentioned existing packing ring, lax problem can occur, the utility model proposes a kind of packing ring, concrete technological scheme is as follows:

A packing ring, comprises two packing ring monolithics that mesh by inner side surface, this packing ring monolithic by the perk of mind-set surrounding, outer side surface and inner side surface are equipped with the skew back flank of tooth.

Preferably, the skew back flank of tooth on the outer side surface of described packing ring monolithic is the radial skew back flank of tooth of dislocation, thereby effectively in area of contact, is providing the same bolt head of packing ring (or nut) and the more intensive strong point of connected piece, and dispersive pressure, makes it more wear-resisting.

Preferably, described two packing ring monolithics by the angle of mind-set surrounding perk consistent or contrary.

Preferably, described direction be level upwards or level downward.

Preferably, described level upwards or the angular range of the downward perk of level for being greater than zero degree, be less than 1 degree.

Preferably, the amplitude of described dislocation is the 1/5-1/2 of groove width.

Preferably, described packing ring is carbon steel or alloyed steel or stainless steel manufacture.

Preferably, the described outer side surface skew back flank of tooth number of teeth is 20～200, and the inner side surface skew back flank of tooth number of teeth is 8～30.

The beneficial effects of the utility model are, by packing ring monolithic by the horizontal perk of mind-set surrounding, at an angle, make after two packing ring monolithic engagements, form certain level and make progress or the downward angle of level, while installing and using, packing ring monolithic is driven plain, and packing ring monolithic is because deformation has restorable trend, thereby can fill up the gap forming when contact surface abrasion, strengthen fastening effect.

Particularly, in use, this packing ring forms by two packing ring monolithic inner side surface skew back flank of tooth engagement in rotation, the surperficial comprehensive engagement of the same bolt head of whole outer side surface (or nut) of one packing ring monolithic, the whole outer side surface of another packing ring monolithic with the surperficial comprehensive engagement of link, bolt (or nut) completes fastening with connected piece by the packing ring being driven plain.And when being subject to vibrating, changing of the relative positions lifting relatively between the skew back flank of tooth of packing ring inner side surface,, after long-term use, each surface of contact can wear and tear, and causes the fastening gap that occurs.And due to pad of the present utility model in deformed state, there is restorable trend, when there is gap, packing ring monolithic recovers perk to each surface of contact, thereby has filled up the gap that contact surface abrasion forms, and makes fastening very reliable.

Accompanying drawing explanation

Fig. 1 is first embodiment's packing ring monolithic outer side surface schematic diagram.

Fig. 2 is first embodiment's packing ring monolithic inner side surface schematic diagram.

Fig. 3 is first embodiment's packing ring monolithic plan view.

Fig. 4-1 is first embodiment's packing ring plan view.

Fig. 4-2 are first embodiment's packing ring center section plan

Fig. 4-3 are first embodiment's packing ring sectional exploded view.

Fig. 5 is first embodiment's stereogram.

Fig. 6-1 is second embodiment's packing ring plan view.

Fig. 6-2 are second embodiment's packing ring center section plan

Fig. 6-3 are second embodiment's packing ring sectional exploded view.

Fig. 7 is second embodiment's stereogram.

Symbol description:

1 is packing ring outer side surface, and 2 is packing ring inner side surface, and 3 is gap, and 4 is Surface of action.

Embodiment

The utility model packing ring comprises the packing ring monolithic of two structural correspondences, and the packing ring monolithic of these two structural correspondences by the radial skew back flank engagement on packing ring monolithic together.With two embodiments, be described below.

the first embodiment

As shown in FIG. 1 to 3, be the utility model the first embodiment's packing ring monolithic, radial skew back flank of tooth that its outer side surface 1 is dislocation, the amplitude staggering can be the 1/5-1/2 of groove width; Its inner side surface 2 is a concentric radial skew back flank of tooth, and this groove width is greater than the groove width on outer side surface.This packing ring monolithic is by center perk gradually outward.

As shown in Fig. 4-1～Fig. 4-3, by the inner side surface of two packing ring lists intermesh together the structural representation of formation packing ring, this two packing rings monolithic perk opposite direction, on packing ring, monolithic upwards forms radian by centre to surrounding level, under packing ring, monolithic forms radian by centre downwards to surrounding level, two packing ring monolithics concentric radial skew back flank engagement by inner side surface 2 cores together, forms Surface of action 4, and packing ring periphery forms gap 3.

As shown in Figure 5, be the stereogram of first embodiment's packing ring, after laminating, visible center two packing ring monolithics are by Surface of action 4 close contacts, and periphery forms gap 3.Outer rim maximal clearance is about 0.6mm.The equal same level of the upper and lower monolithic of packing ring forms the angle of 0.8 degree.

the second embodiment

The lines arranging on this embodiment's packing ring outer side surface 1 and inner side surface 2, with embodiment 1, repeats no more.

As shown in Fig. 6-1～Fig. 6-3 and Fig. 7, this two packing rings monolithic perk opposite direction, under packing ring, monolithic upwards forms radian by centre to surrounding level, on packing ring, monolithic forms radian by centre downwards to surrounding level, two packing ring monolithics concentric radial skew back flank engagement by inner side surface 2 outer peripheral portions together, form Surface of action 4, packing ring monolithic central boss is divided and is relatively formed gap 3.Inner edge maximal clearance is about 0.3mm.The equal same level of the upper and lower monolithic of packing ring forms the angle of 0.2 degree.

Two packing ring monolithics in above-described embodiment also can perk direction unanimously be realized, such as: monolithic on packing ring, lower monolithic by centre to surrounding level upwards (or under) form radian, two packing ring monolithics concentric radial skew back flank of tooth by inner side surface 2 cores is complete meshes together, form Surface of action 4, do not have gap 3.During use, packing ring same level surface of contact forms local gap.

Above-mentioned packing ring can be used carbon steel, alloyed steel, stainless steel manufacture.

Be only the preferred embodiment of model utility in sum, be not used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modify, all should be technology category of the present utility model.

Claims

1. a packing ring, comprises two packing ring monolithics that mesh by inner side surface, it is characterized in that, this packing ring monolithic by the perk of mind-set surrounding, outer side surface and inner side surface are equipped with the skew back flank of tooth.

2. packing ring as claimed in claim 1, is characterized in that, the skew back flank of tooth on the outer side surface of described packing ring monolithic is the radial skew back flank of tooth being dislocatedly distributed.

3. packing ring as claimed in claim 1, is characterized in that, described two packing ring monolithics by the direction of mind-set surrounding perk consistent or contrary.

4. packing ring as claimed in claim 3, is characterized in that, described direction be level upwards or level downward.

5. packing ring as claimed in claim 4, is characterized in that, described level upwards or the angular range of the downward perk of level for being greater than zero degree, be less than 20 degree.

6. packing ring as claimed in claim 2, is characterized in that, the amplitude of described dislocation is the 1/5-1/2 of outer side surface groove width.

7. packing ring as claimed in claim 1, is characterized in that, described packing ring is carbon steel or alloyed steel or stainless steel manufacture.

8. packing ring as claimed in claim 1, is characterized in that, described inner side surface skew back flank of tooth groove width is wider than outer side surface skew back flank of tooth groove width.

9. packing ring as claimed in claim 6, is characterized in that, the described outer side surface skew back flank of tooth number of teeth is 20～200, and the inner side surface skew back flank of tooth number of teeth is 8～30.