CN202646401U - Rubber seal ring - Google Patents

Abstract

The utility model discloses a rubber seal ring which is formed by a rubber body (1). At least one round bulge loop (2) is placed on the outer circumference of the rubber seal ring. According to the rubber seal ring, at least one round bulge loop is arranged on the outer circumference, and the bulge loop is similar to a seal lip. By means of adding the bulge loop on the outer circumference of the rubber seal ring, the rubber seal ring provided with good air tightness can be guaranteed. Besides, during the process of working, the contact status of the rubber seal ring is point contact seal, so that the contact area of the seal is decreased, the tightness of the rubber seal ring is improved, and the rubber seal ring cannot leak in the long time working. The rubber seal ring can prevent the external muddy water from entering a bearing so that the service life of the bearing is prolonged.

Description

A kind of rubber seal

Technical field

The utility model relates to the seal ring technical field, relates in particular to a kind of rubber seal.

Background technique

At present, be applied in the rubber seal on the bearing, be mainly used in bearing internal lubrication fat is sealed, and prevent the effect that outside muddy water enters, rubber seal requires to have good tightness.As shown in Figure 1, structural representation for a kind of typical rubber seal in the prior art, the rubber seal of this structure is formed by rubber body 1, the general employing of its excircle faced design directly, and the contact condition of rubber seal is face contact sealing working at present, and its surface of contact is larger, bearing rubber seal after work a period of time is leaked, outside muddy water can enter bearing inside, destroys the sealability of rubber seal, thereby reduces the working life of bearing.

The model utility content

For the problem that prior art exists, the purpose of this utility model is to propose a kind of rubber seal, has improved the sealing of rubber seal, can prevent that outside muddy water from entering bearing in the work for a long time, thereby improve the working life of bearing.

For reaching this purpose, the utility model by the following technical solutions:

A kind of rubber seal, described rubber seal is formed by rubber body, at the excircle of rubber seal at least one circle bulge loop is set.

Preferably, the excircle in rubber seal arranges a circle bulge loop, a side of the close rubber body seal ring of bulge loop.

Preferably, on the inner circumference of rubber seal single lip or double-lip are set.

Based on disclosing of above technological scheme, the utility model possesses following beneficial effect:

The rubber seal that the utility model proposes arranges at least one circle bulge loop at the excircle of rubber seal, and this bulge loop is similar to seal lip, increases bulge loop by the excircle in rubber seal, can guarantee that rubber seal has good tightness; And the contact condition of rubber seal is some contact sealing when work, has reduced the surface of contact of sealing, improved the sealing of rubber seal, rubber seal can not leaked in working for a long time, can prevent that outside muddy water from entering bearing, thereby improve the working life of bearing.

Description of drawings

Fig. 1 is the structural representation of a kind of typical rubber seal in the prior art;

Fig. 2 is the structural representation of a kind of rubber seal that the utility model proposes.

Embodiment

Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment:

As shown in Figure 2, be the structural representation of a kind of rubber seal that the utility model proposes.

With reference to Fig. 2, a kind of rubber seal that the utility model proposes, described rubber seal is formed by rubber body 1, at the excircle of rubber seal at least one circle bulge loop 2 is set.Preferably, the excircle in rubber seal arranges a circle bulge loop 2, a side of bulge loop 2 close rubber body seal rings.When specific design, single lip or double-lip are set on the inner circumference of rubber seal.

Above-mentioned rubber seal arranges at least one circle bulge loop at the excircle of rubber seal, and this bulge loop is similar to seal lip; Increase bulge loop by the excircle in rubber seal, can guarantee that rubber seal has good tightness; And the contact condition of rubber seal changes to a contact sealing by of the prior art contact sealing when work, has reduced the surface of contact of sealing; Because face when sealing contact sealing contact surface is larger, be difficult to guarantee that each local face has contacted, the only good sealing of guarantee in the situation of a contact, thus improved the sealing of rubber seal; Rubber seal can not leaked in working for a long time like this, can prevent that outside muddy water from entering bearing, thereby improve the working life of bearing.

The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obvious realization of the present utility model is not subjected to the restriction of aforesaid way; as long as adopted the method design of model utility and the various improvement that technological scheme is carried out; or without improving the design of model utility and technological scheme are directly applied to other occasion, all in protection domain of the present utility model.

Claims (3)

1. a rubber seal is characterized in that, described rubber seal is formed by rubber body (1), at the excircle of rubber seal at least one circle bulge loop (2) is set.

2. rubber seal according to claim 1 is characterized in that, at the excircle of rubber seal one circle bulge loop (2) is set, and bulge loop (2) is near a side of rubber body seal ring.

3. rubber seal according to claim 1 and 2 is characterized in that, single lip or double-lip are set on the inner circumference of rubber seal.

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