CN106321834A

CN106321834A - Annular sealing ring

Info

Publication number: CN106321834A
Application number: CN201510334393.4A
Authority: CN
Inventors: 吴功益; 朱剑文
Original assignee: ZHANGJIAGANG SALEM FINE TUBING CO Ltd
Current assignee: ZHANGJIAGANG SALEM FINE TUBING CO Ltd
Priority date: 2015-06-17
Filing date: 2015-06-17
Publication date: 2017-01-11

Abstract

The application discloses an annular sealing ring which comprises an annular polytetrafluoroethylene body. The body comprises a first body with a rectangular cross section, as well as a second body which protrudes and stretches upwards from the first body, and has an isosceles-trapezoid cross section, wherein the included angle between the side edge of the second body and the horizontal direction is 45 DEG; the top face of the second body is covered by rubber skin; and a hole with an elliptic cross section is formed along the extending direction in the first body. According to the invention, a polytetrafluoroethylene sealing material is adopted; polytetrafluoroethylene has very high chemical stability and a very low friction coefficient; and a filling reinforcing material is added to the filling polytetrafluoroethylene in particular, so that physical and mechanical performance is further enhanced on the premise of maintenance of original excellent performance.

Description

O-ring seal

Technical field

The application belongs to technical field of ship transportation, particularly relates to a kind of O-ring seal.

Background technology

In macromolecular material, rubber is owing to having good mechanical property and high resilience, elastic modelling quantity The least, therefore it is widely used in anti-vibration article.But on the whole, the machinery of elastomeric material is strong Spending on the low side, wearability is poor, and the frictional resistance produced during motion is big, also has certain in terms of media-resistant Limitation.

On existing freighter, many places need to use rubber part to play the effects such as damping, and rubber used by existing freighter Glue part, causes aliquation to bubble owing to salt fog resistance performance is the best or embrittlement is hardened and aging in surface, is formed Potential safety hazard greatly.

Summary of the invention

It is an object of the invention to provide a kind of O-ring seal, to overcome deficiency of the prior art.

For achieving the above object, the present invention provides following technical scheme:

The embodiment of the present application discloses a kind of O-ring seal, including politef body ringwise, Described body have square-section the first noumenon and from the cross section that described the first noumenon upwards protrudes out in Second body of isosceles trapezoid, the side of described second body and the angle of horizontal direction are 45 °, described The end face of the second body is coated with rubber epidermis, extends along direction and offer cross section in described the first noumenon The hole of ovalize.

Preferably, in above-mentioned O-ring seal, it is characterised in that: the end face of described rubber epidermis in Zigzag.

Preferably, in above-mentioned O-ring seal, it is characterised in that: described rubber epidermis is poly-with described It is provided with Magnet between tetrafluoroethene body.

Preferably, in above-mentioned O-ring seal, it is characterised in that: described politef body with Connected by mucilage layer between described rubber epidermis.

Preferably, in above-mentioned O-ring seal, it is characterised in that: described rubber epidermis and polytetrafluoro It is combined by sulfur foam between ethylene body.

Compared with prior art, it is an advantage of the current invention that:

The present invention uses PTFE stuffing materials, politef to have the most superior chemically stable Property and low-down coefficient of friction, particularly filled polytetrafluoroethylene, due to add filler reinforcement material, Making it on the basis of keeping original premium properties, physical and mechanical properties is further enhanced so that produce Product hot strength the most significantly exceedes the index request of routine >=10Mpa and reaches about 13.4Mpa.

It addition, the O-ring seal of the present invention also has chemicals-resistant, oil resistant and resistant to elevated temperatures advantage.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to reality Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below, Accompanying drawing in description is only some embodiments described in the application, for those of ordinary skill in the art From the point of view of, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 show the structure top view of O-ring seal in the specific embodiment of the invention；

Fig. 2 show the sectional view of O-ring seal in the specific embodiment of the invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out Detailed description, it is clear that described embodiment is only a part of embodiment of the present invention rather than complete The embodiment in portion.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation Property work on the premise of the every other embodiment that obtained, broadly fall into the scope of protection of the invention.

Shown in ginseng Fig. 1 and Fig. 2, O-ring seal includes politef body 1 ringwise, body 1 There is the first noumenon 11 of square-section and it is isosceles trapezoid from the cross section that the first noumenon 11 upwards protrudes out The second body 12, the side 121 of the second body 12 is 45 ° with the angle of horizontal direction, second The end face of body is coated with rubber epidermis 2, extends along direction and offer ellipsoidal cross section in the first noumenon Hole 13.

In this technical scheme, body uses polytetrafluoroethylmaterial material, can be greatly improved its mechanical performance And frictional behaviour.

In this technical scheme, O-ring seal can be improved by hole in the middle part of politef body The elastic space of in the vertical direction.

Further, the end face indentation of rubber epidermis.

In this technical scheme, by serrated-surface, O-ring seal and hatchcover, annular can be improved Sealing between sealing ring and draw-in groove.

Further, it is provided with Magnet between rubber epidermis and politef body.

In this technical scheme, by arranging Magnet in O-ring seal, O-ring seal can be direct Absorption, on hatchcover or draw-in groove, improves and installs convenience.

Further, it is connected by mucilage layer between politef body with rubber epidermis.

Further, it is combined by sulfur foam between rubber epidermis and politef body.

It should be noted that in this article, the relational terms of such as first and second or the like is used merely to One entity or operation are separated with another entity or operating space, and not necessarily requires or imply Relation or the order of any this reality is there is between these entities or operation.And, term " includes ", " comprise " or its any other variant is intended to comprising of nonexcludability, so that include that one is The process of row key element, method, article or equipment not only include those key elements, but also include the brightest Other key elements really listed, or also include intrinsic for this process, method, article or equipment Key element.In the case of there is no more restriction, statement " including ... " key element limited, It is not precluded from there is also in including the process of described key element, method, article or equipment other identical Key element.

The above is only the detailed description of the invention of the application, it is noted that general for the art For logical technical staff, on the premise of without departing from the application principle, it is also possible to make some improvement and profit Decorations, these improvements and modifications also should be regarded as the protection domain of the application.

Claims

1. an O-ring seal, it is characterised in that include politef body ringwise, described Body has the first noumenon of square-section and is isosceles from the cross section that described the first noumenon upwards protrudes out The second trapezoidal body, the side of described second body and the angle of horizontal direction are 45 °, described second The end face of body is coated with rubber epidermis, and it is ellipse for extending along direction in described the first noumenon and offering cross section Circular hole.

O-ring seal the most according to claim 1, it is characterised in that: the top of described rubber epidermis Face indentation.

O-ring seal the most according to claim 1, it is characterised in that: described rubber epidermis and institute State and be provided with Magnet between politef body.

O-ring seal the most according to claim 1, it is characterised in that: described politef is originally It is connected by mucilage layer between body with described rubber epidermis.

O-ring seal the most according to claim 1, it is characterised in that: described rubber epidermis is with poly- It is combined by sulfur foam between tetrafluoroethene body.