CN202252313U

CN202252313U - Sealing element

Info

Publication number: CN202252313U
Application number: CN2011203933040U
Authority: CN
Inventors: 赵玲方; 叶琦; 王新
Original assignee: Zhejiang Luminous Rubber Seal Co Ltd
Current assignee: Zhejiang Luminous Rubber Seal Co Ltd
Priority date: 2011-10-11
Filing date: 2011-10-11
Publication date: 2012-05-30
Anticipated expiration: 2021-10-11

Abstract

The utility model provides a sealing element, which belongs to the technical field of machinery and solves the problem that when the existing sealing element is applied to a valve, the upward and downward movement of a valve rod is not stable enough. The sealing element comprises a body with a center hole, wherein flanges are respectively arranged on two end surface surfaces of the center hole, and the flanges are formed by firstly outwards extending the body along the center hole wall and then extending the body into the center hole. The sealing element has the advantages that the structure is simple, the dismounting is convenient, and in addition, the upward and downward movement of the valve rod is smoother and more stable.

Description

A kind of Sealing

Technical field

The utility model belongs to field of mechanical technique, relates to a kind of Sealing.

Background technique

The patent No. is the technological scheme that 200820006134.4 patent discloses a kind of Sealing: a kind of Sealing; Described Sealing has center hole; It is characterized in that; On one of described Sealing axial end, also form along away from the axis of orientation of one of Sealing end face to the flange that radially extends.Though this technological scheme has improved its sealing; But still exist some problems: mainly be only on Sealing one end, axially and radially to be extended with flange; Valve rod is tightly connected with Sealing on this end; Thereby can make that valve rod can radial-play on this end leaving the space on the Sealing the other end and between the Sealing, it not is very steady that valve rod moves up and down.

Summary of the invention

The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of valve rod that makes and has moved up and down Sealing more stably.

The purpose of the utility model can realize through following technical proposal: a kind of Sealing; Comprise body with center hole; It is characterized in that: said body is equipped with flange on the center hole both ends of the surface, and this flange is that body earlier extends outward to extend in the center hole along the center hole wall again and forms.

In above-mentioned a kind of Sealing, described flange and body are integral structure.

Compared with prior art, this Sealing has following several advantage:

1, be provided with flange separately on this seal body center hole both ends of the surface, body forms through two flanges and valve rod and is tightly connected, and makes valve rod can not receive the very big resistance that receives, and it is more smooth and easy to move, and has guaranteed good sealing property simultaneously;

2, flange is two, has guaranteed that valve rod does not all have the space at place, center hole two ends with body, and so valve rod guarantees to move up and down stably moving up and down Shi Buhui generation radial-play.

Description of drawings

Fig. 1 is the structural representation of the utility model and valve rod.

Fig. 2 is the structural representation of the utility model.

Among the figure, 1, body; 2, center hole; 3, flange; 4, valve rod.

Embodiment

Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.

As illustrated in fig. 1 and 2, this Sealing comprises the body 1 with center hole 2, and body 1 is equipped with flange 3 on center hole 2 both ends of the surface, and this flange 3 forms toward center hole 2 interior extensions for body 1 extends along center hole 2 walls earlier outward again.Two flanges 3 are made of one piece with body 1.

Be provided with flange 3 separately on this seal body 1 center hole 2 both ends of the surface, body 1 forms with valve rod 4 through two flanges 3 and is tightly connected, and makes valve rod 4 can not receive the very big resistance that receives, and it is more smooth and easy to move; Flange 3 is two, has guaranteed that valve rod 4 does not all have the space at place, center hole 2 two ends with body 1, and so valve rod 4 guarantees to move up and down stably, simultaneously the good sealing effect of sealing part moving up and down Shi Buhui generation radial-play.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.

Claims

1. Sealing; Comprise the have center hole body (1) of (2); It is characterized in that: said body (1) is equipped with flange (3) on center hole (2) both ends of the surface, and this flange (3) forms toward interior extension of center hole (2) for body (1) extends along center hole (2) wall earlier outward again.

2. a kind of Sealing according to claim 1 is characterized in that, described flange (3) and body (1) are integral structure.