CN203321611U

CN203321611U - Engine valve oil seal

Info

Publication number: CN203321611U
Application number: CN2013202631659U
Authority: CN
Inventors: 张建文
Original assignee: CHANGZHOU AIQI ENVIRONMENTALLY-FRIENDLY VEHICLES Co Ltd
Current assignee: CHANGZHOU AIQI ENVIRONMENTALLY-FRIENDLY VEHICLES Co Ltd
Priority date: 2013-05-14
Filing date: 2013-05-14
Publication date: 2013-12-04
Anticipated expiration: 2023-05-14

Abstract

The utility model relates to the technical field of automotive components, in particular to an engine valve oil seal. The engine valve oil seal comprises a step-shaped frame and a rubber sealing body adhering to the inner wall of the upper end of the frame, a spring groove is formed in the outer edge of the rubber sealing body, a self-tightening spiral spring is installed in the spring groove, and a cutting and repairing face is arranged on the inner side of the rubber sealing body. According to the engine valve oil seal, the frame is designed on the basis of pure rubber, installation of a sealing ring is greatly facilitated, the assembly locating of sealing is well guaranteed, leakage or seepage of lubrication oil of an engine lubrication system is avoided, the sealing effect is guaranteed, and the use requirement is satisfied.

Description

A kind of engine valve oil seal

Technical field

The utility model relates to the auto-parts technical field, especially a kind of engine valve oil seal.

Background technique

Engine valve oil seal, for the sealing to the automotive engine valves guide rod, prevents that lubricant oil from entering firing chamber, reduces engine performance.Traditional a kind of engine valve oil seal is generally single rubber material or other macromolecular materials, the seal ring of this structure is when matching with housing, its sealing effect is difficult for guaranteeing, radiating effect is poor, its material also easily follows the string because of aging distortion, thereby working life is shorter, need to frequently change, affect the operational efficiency of equipment.In addition, because sealing effect is undesirable, very easily make the lubricant medium of lubrication system leak or seepage, can not meet user demand, serious entail dangers to personal safety.

The model utility content

The technical problems to be solved in the utility model is: for overcoming the problem of above-mentioned existence, provide the engine valve oil seal that a kind of thermal diffusivity is good, guaranteed the normal operation of valve and the service behaviour of motor.

The utility model solves the technological scheme that its technical problem adopts: a kind of engine valve oil seal, comprise stepped ramp type skeleton and the rubbery sealed body that is bonded in skeleton upper end inwall, described rubbery sealed body outer offers the spring ditch, the self-tightening helical spring is housed in the spring ditch, described rubbery sealed body inboard has all has a shave, and its rib can avoid the lubricant oil of vehicle lubricating system to leak or seepage.

Further, described skeleton, for the iron-clad through antirust processing, described rubbery sealed body adopts fluorine rubber, makes when improving sealability and strengthens again its thermal diffusivity.

The beneficial effects of the utility model are, a kind of engine valve oil seal of the present utility model design framework on the basis of gum, greatly facilitate the installation of seal ring, guaranteed better the assembling and positioning of sealing, avoid the lubricant oil of engine lubrication system to leak or seepage, guarantee sealing effect, meet usage requirement.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is generalized section of the present utility model.

1. skeletons in figure, 2. rubbery sealed body, 3. the self-tightening helical spring, 4. cut and have a shave.

Embodiment

By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

A kind of engine valve oil seal as shown in Figure 1, comprise stepped ramp type skeleton 1 and the rubbery sealed body 2 that is bonded in skeleton 1 upper end inwall, rubbery sealed body 2 outers offer the spring ditch, self-tightening helical spring 3 is housed in the spring ditch, the rubbery sealed body inboard has all and has a shave 4, and its rib can avoid the lubricant oil of vehicle lubricating system to leak or seepage.Skeleton 1 is the iron-clad through antirust processing, and rubbery sealed body 2 adopts fluorine rubber, makes when improving sealability and strengthens again its thermal diffusivity.

The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, the relevant staff can, in the scope that does not depart from this model utility technological thought, carry out various change and modification fully.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to the claim scope.

Claims

1. an engine valve oil seal, it is characterized in that: comprise stepped ramp type skeleton (1) and be bonded in the rubbery sealed body (2) of skeleton (1) upper end inwall, described rubbery sealed body (2) outer offers the spring ditch, self-tightening helical spring (3) is housed in the spring ditch, and described rubbery sealed body (2) inboard has all have a shave (4).

2. a kind of engine valve oil seal according to claim 1, is characterized in that: the iron-clad that described skeleton (1) is the antirust processing of process, described rubbery sealed body (2) employing fluorine rubber.