CN202301958U

CN202301958U - Zigzag dual-lip framework oil seal

Info

Publication number: CN202301958U
Application number: CN2011204180645U
Authority: CN
Inventors: 梁俊
Original assignee: HEFEI AUTOMOBILE OIL PUMP Co Ltd
Current assignee: HEFEI AUTOMOBILE OIL PUMP Co Ltd
Priority date: 2011-10-28
Filing date: 2011-10-28
Publication date: 2012-07-04
Anticipated expiration: 2021-10-28

Abstract

The utility model discloses a zigzag dual-lip framework oil seal which comprises an annular oil seal framework and lip rings, wherein the lip rings are provided with sheathed rubber wrapped on an outer layer of the oil seal framework and are also arranged inside the oil seal framework; ring surfaces of the lip rings are mutually parallel; the periphery of the sheathed rubber is zigzag; and each path of saw teeth form a same independent ring. The zigzag dual-lip framework oil seal disclosed by the utility model has the advantages that deformation resistance of the oil seal and the bonding capability of the oil and a hole seat are enhanced and the sealing effect is ensured.

Description

Zigzag fashion lips mouth outside framework oil seal

Technical field

The utility model relates to a kind of oil sealing, especially zigzag fashion lips mouth outside framework oil seal.

Background technique

In actual use; Some such inefficacies can appear in outside framework oil seal: problems such as oil sealing comes off, leakage of oil, installation distortion, side cut; Though the mechanism that has problems possibly not be the reason of outside framework oil seal own;, overpressure bigger than normal or reasons such as improper are installed like the oil sealing base hole, but results such as product failure, environmental pollution, user be dissatisfied finally caused.Some Environmental Conditions requires outside framework oil seal all will seal two sides, the oil sealing left and right sides simultaneously in addition, and the method that adopts usually is to use two reverse combine and assemble of oil sealing, makes that like this mounting hole seat axial position is bigger.For addressing the above problem, the structure of outside framework oil seal is improved, make it more can satisfy usage requirement.

The model utility content

The technical problem that the utility model will solve provides a kind of zigzag fashion lips mouth outside framework oil seal, plays axial two way sealed effect, and this model utility oil seal lip is not easy distortion, and easy mounting is guaranteed sealing effect simultaneously.

The utility model is realized through following technological scheme.

A kind of zigzag fashion lips mouth outside framework oil seal; It comprises oil tight skeleton in the form of a ring; Setting is wrapped in the outer field outpacking rubber of oil tight skeleton and is arranged on oil tight skeleton inside and lip ring that anchor ring is parallel to each other; Above-mentioned outpacking rubber periphery indention shape, and the per pass sawtooth becomes identical independent annulus.

Further, above-mentioned lip ring is made as the lips outlet structure, and two lip monocycles are symmetrical about the center cross-sectional of outside framework oil seal.

Further, above-mentioned oil tight skeleton is inboard, two lip monocycle outsides are provided with two coil springs, and symmetrical about the center cross-sectional of outside framework oil seal.

Further, the sawtooth height of above-mentioned sawtooth circle is preferably 0.3～0.8mm.

Further, the number of turns of above-mentioned sawtooth circle is preferably 15～20 circles.

The beneficial effect of the utility model:

1, because the existence of sawtooth circle makes that installation is more or less freely;

2, guaranteeing under the situation of sealability, to outside framework oil seal seat hole machining accuracy require relatively low;

3, because the existence of outer crenature circle, be equivalent to form multiple-sealed, to the sealability of outside framework oil seal

Improve;

4, be not easy to cause the reason generation leakage of cutting edge because of installing;

5,, be difficult for producing the lip distortion and cause leakage because cylindrical distortion flexibility is bigger;

6, because cylindrical distortion flexibility is bigger, reduction is installed the resilience behind the outside framework oil seal and is come off, and uses same

Oil sealing can be realized two way sealed.

Description of drawings

Fig. 1 is the cross-sectional view of this case study on implementation zigzag fashion lips mouth outside framework oil seal;

Fig. 2 is the local enlarged diagram of Figure 1A part.

Embodiment

According to accompanying drawing and embodiment the utility model is done further explain below.

Fig. 1 is the cross-sectional view of this case study on implementation zigzag fashion lips mouth outside framework oil seal, with reference to Fig. 1, and the utility model, zigzag fashion lips mouth outside framework oil seal 1 is made up of oil tight skeleton 11,

lip monocycle

13,14,

spring

15,16, outpacking rubber 12.Wherein oil tight skeleton 11 is frameworks of the utility model; It is a ring structure, and outpacking rubber 12 is wrapped in the skin of oil tight skeleton 11, and the lip ring is arranged on the inside of oil tight skeleton 11; And the anchor ring of lip ring and oil tight skeleton 11 is parallel to each other; The lip ring is the lips outlet structure, promptly is made up of lip monocycle 13 and lip monocycle 14, and two

lip monocycles

13,14 are about the center cross-sectional symmetry of outside framework oil seal 11; Two coil springs are that spring 15 is arranged on the inboard of oil tight skeleton 11, the outside of two

lip monocycles

13,14 with spring 16, and spring 15 and the center cross-sectional symmetry of spring 16 about outside framework oil seal 11.

Fig. 2 is the local enlarged diagram of Figure 1A part, with reference to Fig. 2, and outpacking rubber 11 periphery indention shapes, and 121 one-tenth identical independent annulus of per pass sawtooth, the sawtooth height of sawtooth circle 121 is 0.5mm, the number of turns of the sawtooth circle 121 of outpacking rubber 11 is 15 circles.

The utility model, zigzag fashion lips mouth outside framework oil seal, the cylindrical of outside framework oil seal wherein is designed to a lot of zigzag fashion, is compressed easily because the zigzag fashion crown is narrower, so be pressed into the oil sealing base hole easily, is difficult for causing distortion and side cut; Zigzag fashion also is compressed to low-lying place, a hole easily, plays the filling sealing effect; A zigzag fashion can form one sealing, and a plurality of profiles of tooth can form multiple-sealed, so sealability is better.

The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage that is familiar with this art can understand the utility model content and also implements, and can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection domain of the utility model.

Claims

1. zigzag fashion lips mouth outside framework oil seal; It comprises oil tight skeleton in the form of a ring; Setting is wrapped in the outer field outpacking rubber of oil tight skeleton and is arranged on oil tight skeleton inside and lip ring that anchor ring is parallel to each other; It is characterized in that, said outpacking rubber periphery indention shape, and the per pass sawtooth becomes identical independent annulus.

2. zigzag fashion lips mouth outside framework oil seal according to claim 1 is characterized in that said lip ring is made as the lips outlet structure, and two lip monocycles are symmetrical about the center cross-sectional of outside framework oil seal.

3. zigzag fashion lips mouth outside framework oil seal according to claim 2 is characterized in that, said oil tight skeleton is inboard, two lip monocycle outsides are provided with two coil springs, and symmetrical about the center cross-sectional of outside framework oil seal.

4. zigzag fashion lips mouth outside framework oil seal according to claim 1 is characterized in that the sawtooth height of said sawtooth circle is preferably 0.3～0.8mm.

5. zigzag fashion lips mouth outside framework oil seal according to claim 1 is characterized in that, the number of turns of said sawtooth circle is preferably 15～20 circles.