CN2369037Y

CN2369037Y - Valve sealer

Info

Publication number: CN2369037Y
Application number: CN 99220903
Authority: CN
Inventors: 刘光裕
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-14
Filing date: 1999-05-14
Publication date: 2000-03-15
Anticipated expiration: 2009-05-14

Abstract

The utility model provides a valve sealing member between a valve flow channel and a valve expiry body, comprising a nonmetallic elastic annular body 1. The valve sealing member between a valve flow channel and a valve expiry body has an improved point that an annular cavity body 2 is arranged in the nonmetallic elastic annular body. An annular opening 3 which is communicated with the annular cavity body 2 is arranged on the nonmetallic elastic annular body 1. When a valve is positioned on a closed state, the pressure in the valve flow channel enters the annular cavity body through the annular opening, the sealing surface of the valve sealing member between a valve flow channel and a valve expiry body and a valve expiry body are tightly pressed, and the valve does not leak. The abrasion of the sealing surface in the process of running is compensated, and the service life of the valve is extended.

Description

A kind of valve sealing element

The utility model relates to a kind of valve sealing element, particularly valve flowing channel and valve by the valve sealing element between the body.

At present, in known various valves, the runner of valve and the Sealing that ends between the body are real core elastic annular bodies, the Sealing of this structure in use, medium in body and runner is to the sealing surface wear of Sealing, the sealing surface of Sealing and form the gap between the body when valve is in closed condition causes valve leak, has shortened the working life of valve.

The purpose of this utility model is to provide a kind of valve flowing channel and valve by the valve sealing element between the body, to overcome the deficiency of known technology.

The utility model is achieved in that a kind of valve flowing channel and valve are by the valve sealing element between the body, it comprises a nonmetal elastic annular body 1, wherein improvements are to have ring-shaped cavity 2 in the elastic annular body 1, have the circular opening 3 that communicates with ring-shaped cavity 2 on elastic annular body 1.

Valve sealing element of the present utility model can be that the elastic annular body is curved surface with valve by the sealing surface that body contacts.

Valve sealing element of the present utility model can be that the elastic annular body is the plane with valve by the sealing surface that body contacts.

A kind of valve flowing channel that the utility model provides and valve are by the Sealing between the body, ring-shaped cavity in the elastic annular body can increase the elasticity of Sealing, when valve is in closed condition, pressure in the valve flowing channel enters ring-shaped cavity in the elastic annular body by the circular opening on the elastic annular body, the sealing surface and the valve of elastic annular body are compressed by body, valve does not leak, the valve sealing element of this structure can the wearing and tearing of compensating sealing surface in running, prolonged the working life of valve.

Fig. 1: a kind of structural front view of the utility model valve sealing element.

The A-A sectional view of Fig. 2: Fig. 1.

The valve sealing element of Fig. 3: Fig. 1, Fig. 2 ends the sealing means schematic representation of body with sphere in ball valve.

The valve sealing element of Fig. 4: Fig. 1, Fig. 2 is in stop valve and stopcock and by body sealing means schematic representation.

Fig. 5: another structural front view of the utility model valve sealing element.

The B-B sectional view of Fig. 6: Fig. 5.

The valve sealing element of Fig. 7: Fig. 5, Fig. 6 ends body sealing means schematic representation with valve in column valve.

Fig. 8: the another kind of structural front view of the utility model valve sealing element.

The C-C cut-away view of Fig. 9: Fig. 8.

The valve sealing element of Figure 10: Fig. 8, Fig. 9 ends body sealing means schematic representation with valve in butterfly valve and safety check.

Figure 11: the another kind of again structural front view of the utility model valve sealing element.

The D-D cut-away view of Figure 12: Figure 11.

The valve sealing element of Figure 13: Figure 11, Figure 12 ends body sealing means schematic representation with valve in plate valve.

The utility model is described in further detail in conjunction with the embodiments with reference to accompanying drawing.

Implement 1, Fig. 1, Fig. 2 have provided the utility model valve runner and valve ends a kind of concrete structure of valve sealing element between the body, as shown in the figure, it comprises a nonmetal elastic annular body 1, have a ring-shaped cavity 2 in the elastic annular body 1, have the circular opening 3 that communicates with ring-shaped cavity 2 on the elastic annular body 1.Valve sealing element illustrated in figures 1 and 2 ends body 4 sealing means as shown in Figure 3 with sphere in ball valve, the elastic annular body is a curved surface with the spherical sealing surface that contacts by body 4.Fig. 4 has provided above-mentioned Sealing ends body 5 with valve in stop valve and stopcock sealing means, and the elastic annular body is curved surface with valve by the sealing surface that body 5 contacts.

Embodiment 2, Fig. 5 and Fig. 6 have provided another structure of the utility model valve sealing element, and as shown in the figure, it comprises a nonmetal elastic annular body 1, have a ring-type control body 2 in the elastic annular body 1, have the circular opening 3 that communicates with ring-shaped cavity 2 on the elastic annular body 1.Fig. 5 and valve sealing element shown in Figure 6 in column valve with by body 6 sealing means as shown in Figure 7, the elastic annular body is a curved surface with ending the sealing surface that body 6 contacts.

Embodiment 3, Fig. 8 and Fig. 9 have provided the another kind of structure of the utility model valve sealing element, and as shown in the figure, it comprises a nonmetal elastic annular body 1, have a ring-shaped cavity 2 in the elastic annular body 1, have the circular opening 3 that communicates with ring-shaped cavity 2 on the elastic annular body 1.Fig. 8 and valve sealing element shown in Figure 9 in butterfly valve and non-return with by body 7 sealing means as shown in figure 10, the elastic annular body is a curved surface with ending the sealing surface that body 7 contacts.

Embodiment 4, Figure 11 and Figure 12 provide the another kind of again structure of the utility model valve sealing element, it comprises a nonmetal elastic annular body 1, has ring-shaped cavity 2 in the elastic annular body 1, has the circular opening 3 that communicates with ring-shaped cavity 2 on the elastic annular body 1, Figure 11 and valve sealing element shown in Figure 12 in plate valve with by body 8 sealing means as shown in figure 13, the elastic annular body is the plane with ending the sealing surface that body 8 contacts.

Claims

1, a kind of valve flowing channel and valve are by the valve sealing element between the body, it comprises a nonmetal elastic annular body (1), it is characterized in that having a ring-shaped cavity (2) in the elastic annular body (1), have the circular opening (3) that communicates with ring-shaped cavity (2) on the elastic annular body (1).

2, valve sealing element according to claim 1 is characterized in that the elastic annular body is curved surface with valve by the sealing surface that body contacts.

3, valve sealing element according to claim 1, it is characterized in that playing ring bodies is the plane with valve by the sealing surface that body contacts.