CN103511021A

CN103511021A - Sealing structure of self-tightening sealing oil filter

Info

Publication number: CN103511021A
Application number: CN201210206440.3A
Authority: CN
Inventors: 张鑫杰; 黄振
Original assignee: CHANGZHOU HEIGHT NEW ENERGY TECHNOLOGY Co Ltd
Current assignee: CHANGZHOU HEIGHT NEW ENERGY TECHNOLOGY Co Ltd
Priority date: 2012-06-21
Filing date: 2012-06-21
Publication date: 2014-01-15

Abstract

A sealing structure of a self-tightening sealing oil filter mainly comprises an outer shell, an upper cover, a sealing ring support, an inner sealing ring and an outer sealing ring. An upper cover clamping position is arranged on the outer shell. The upper cover is placed on the upper cover clamping position for locating. The sealing ring support is arranged on the upper cover. A circle of folding upper turning side with the V-shaped section is arranged outside an annular clamping groove position of the sealing ring support. The folding upper turning side and an inner folding angle of an inward folding side of the edge of the outer shell are connected. The inner sealing ring is arranged in an included angle in a circle on the outer side formed by the folding upper turning side on the outer side of the sealing ring support and the upper cover in a joining mode in an annular-sleeved mode. The lower narrow position of the outer sealing ring is placed in the annular clamping groove position of the sealing ring support, the outer side the upper wide position of the outer sealing ring extends and is connected to the inner folding side of an outer shell opening, and the overall height is higher than the highest edge of the outer shell after side folding. During mounting, the sealing structure is screwed on an oil connector of a heat machine through threads of an oil outlet of the upper cover, when the heat machine works, a whole oil system generates certain working pressure, the same pressure exists in the oil filter, the included angle between the upper cover and the sealing ring support is compressed, so that the sealing ring is tighter by compressing, and sealing performance is better achieved and improved.

Description

The seal structure of self-tightening sealing oil filter

Technical field

The present invention is a kind of seal structure of oil filter, particularly a kind of need not welding only with the seal structure of withholding the self-tightening sealing oil filter of mode combination seal.

Background technique

Rotary mounting engine oil filter, because of its compact structure easy accessibility, is widely used on kind motor always.Rotary mounting engine oil filter generally includes the parts such as shell, upper cover, seal ring bracket, seal ring, filter core, safety valve and forms, its housing, upper cover, seal ring bracket and seal ring form seal structure, on being all arranged on, hydraulic fluid port covers, on oil outlet, there is the screw thread matching with engine oil inlet mouth, directly tighten to be arranged in heat engine and just can use.The seal structure upper cover of traditional oil filter is thicker, by seal ring bracket and the superimposed welding of upper cover, seal ring bracket is larger than upper cover external diameter, then just shell edge and seal ring bracket are enclosed to limit sealing, also have plenty of by shell edge and seal ring bracket edge respectively after flange hook joint pressure forming reach sealing effect.Although realized to a certain extent sealing function, relatively cumbersome on producing, increase cost of production, another workpiece, through shaping operation repeatedly, causes the deformational stress accumulation of material, easily cracks leakage hidden danger in product using process.When conventional oil filter is arranged in heat engine, when heat engine working load larger, the working pressure of its lubricating oil system is also larger, also larger to the power that rises brokenly of the sealing of oil filter, and the reliability of sealing becomes the key point of the quality and performance assurance of oil filter.Current oil filter is in order to address this problem, main method is exactly to strengthen the thickness of material to improve the intensity of material, so both increased cost of material, to original manufacturing mechanism, also need corresponding increasing to adjust, but such method can not really be dealt with problems, because along with the development of heat engine, the continuous supercharging of the work system of heat engine is inevitable, and the seal structure problem of withstand voltage of that oil filter still exists.

Summary of the invention

For above-mentioned the deficiencies in the prior art, it is simple that the present invention proposes a kind of sealing formation technique, and sealing is reliable, crimping envelope or pressure seal equipment that need not be special, and assembling is easy, the seal structure of easy-to-install self-tightening sealing oil filter.

Seal structure of the present invention mainly includes shell, upper cover, seal ring bracket, inner seal ring, exterior seal ring, its housing is provided with upper cover screens, upper cover is placed in upper cover screens and locates, seal ring bracket is located on upper cover, WeiVXing folding position, the outer Ze Youyizhou cross section of ring-type slot upper overturning on seal ring bracket, the interior knuckle position of the inside flanging in edge of folding position upper overturning and shell joins, the folding position upper overturning that inner seal ring is located on seal ring bracket outside engages with upper cover in the outside angle of a week forming, exterior seal ring Xia Zhai position upper wide position lateral in the ring-type slot of seal ring bracket is connected on the interior flanging of shell aperture, its total height higher than the flash edge after shell flanging.During installation, on the machine oil interface that is screwed at heat engine in the machine oil outlet of upper cover, when heat engine is worked, whole lubricating oil system produces certain working pressure, in oil filter, also have identical pressure, the angle between upper cover and seal ring bracket is compressed and seal ring is pressed tightlyer, sealing and more obtain better realizing and improving, realized pressure higher, sealing leak is better target.Seal structure of the present invention also can be applicable on other rotatable filter.

Accompanying drawing explanation

Fig. 1 is cut-away view of the present invention, comprising shell 1, filter core support arm 2, filter core 3, filter core inner support 4, filter core pressing plate 5, upper cover 6, seal ring bracket 7, machine oil outlet 8, machine oil entrance 9, exterior seal ring 10, inner seal ring 11, upper cover screens 12, over consolidation 13, heat engine machine oil interface 14.

Embodiment

Below in conjunction with drawings and Examples, the present invention is further described.

As shown in Figure 1, the present invention mainly comprises that shell 1, upper cover 6, seal ring bracket 7, exterior seal ring 10, inner seal ring 11 form.Its housing 1 approaches opening edge and along position, is provided with upper cover screens 12, this upper cover screens 12 can be that the annular indent of a week is banded, also can be to be distributed on the locational interior recess of same level, minimum number is three, the inside flanging of opening of shell 1, angle angle after infolding is not more than 90 degree, is not less than 45 degree; The center of upper cover 6 is provided with machine oil entrance 8, has the screw matching with heat engine machine oil entrance on it, in machine oil entrance 8 outsides, is laid with machine oil entrance 9, and the external diameter of upper cover 6 equates with the housing internal diameter of shell 1; Seal ring bracket 7 has an annular seal ring slot above, WeiVXing folding position, Ze Yizhouyou cross section upper overturning outside this annular slot position, and the maximum outside diameter of seal ring bracket 7 equates with the housing internal diameter of shell 1; Exterior seal ring 10 cross section is T shape, and lower narrow position is placed on the annular slot position of seal ring bracket 7, and upper wide position can be connected on the interior flanging of shell 1 opening in upper and prolongation laterally.

Upper cover 6 is put into shell 1 and location in upper cover screens 12, the inner walls of the outer edge of upper cover 6 and shell 1 is tangent, seal ring bracket 7 is superimposed together by machine oil entrance 9 hook joints that are distributed on upper cover 6, also directly superimposed in pressure welding mode on can the annular slot position on seal ring bracket 7, the folding position upper overturning of seal ring bracket 7 and the opening edge of shell 1 join along the interior knuckle position of inside flanging, and hold-down ring is placed on the inner seal ring 11 in the folding position upper overturning in seal ring bracket 7 outsides and the outside angle of a week that upper cover 6 is built up, exterior seal ring 10 is placed in its height on the annular slot position of seal ring bracket 7 higher than the flash edge after shell 1 flanging, seal structure of the present invention like this completes assembling.

During installation, first by being screwed on heat engine machine oil interface 14 in the machine oil outlet 8 of upper cover 6, compacted exterior seal ring 10, has sealed the joint gap between oil filter and heat engine machine oil interface 14, has also sealed the gap between shell 1 and seal ring bracket 7; Tighten action and also strained the distance between upper cover 6 and the interior flanging of shell 1, indirectly inner seal ring 11 is compressed, 11 of inner seal rings have sealed respectively the joint gap between upper cover 6 and shell 1, upper cover 6 and seal ring bracket 7, shell 1 and seal ring bracket 7; After warm boot, whole lubricating oil system produces certain working pressure, in oil filter, also there is identical pressure, the angle between upper cover 6 and the folding position upper overturning of seal ring bracket 7 is compressed and inner seal ring 11 is pressed tightlyer, and the sealing of seal structure more obtains better realizing and improving.

Like this, by above-mentioned multi-sealed mode, seal structure of the present invention has been realized self-tightening sealing performance, has also realized pressure higher, and sealing leak is better target.

Claims

1. the seal structure of self-tightening sealing oil filter, it mainly includes shell, upper cover, seal ring bracket, inner seal ring, exterior seal ring, it is characterized in that shell is provided with upper cover screens, upper cover is placed in upper cover screens and locates, seal ring bracket is located on upper cover, WeiVXing folding position, Ze Youyizhou cross section upper overturning outside annular slot position on seal ring bracket, the opening edge of folding position upper overturning and shell joins along the interior knuckle position of inside flanging, the folding position upper overturning that inner seal ring is located on seal ring bracket outside engages with upper cover in the outside angle of a week forming, exterior seal ring is placed in its height on the ring-type draw-in groove of seal ring bracket higher than the flash edge after shell flanging.

2. the seal structure of self-tightening sealing oil filter as claimed in claim 1, is characterized in that upper cover screens on shell can be that the annular indent of a week is banded, can be to be also distributed on the locational interior recess of same level, and minimum number is three.

3. the seal structure of self-tightening sealing oil filter as claimed in claim 1, is characterized in that the angle angle after shell edge infolding is not more than 90 degree, is not less than 45 degree.

4. the seal structure of self-tightening sealing oil filter as claimed in claim 1, it is characterized in that outside seal ring bracket that Yi Zhou folding position upper overturning and upper cover form angle be not more than 45 degree.

5. the seal structure of self-tightening sealing oil filter as claimed in claim 1, it is characterized in that seal ring bracket can be superimposed in hook joint mode by being distributed on machine oil entrance and the upper cover of upper cover, annular slot position that also can be on seal ring bracket is directly superimposed in pressure welding mode.

6. the seal structure of self-tightening sealing oil filter as claimed in claim 1, the cross section that it is characterized in that exterior seal ring is T shape, lower narrow position is placed on the annular slot position of seal ring bracket, and upper wide position can be connected on the interior flanging of shell aperture in upper and prolongation laterally.