CN2193474Y

CN2193474Y - Floating valve base ash valve

Info

Publication number: CN2193474Y
Application number: CN 94224152
Authority: CN
Inventors: 孙亚洲
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-07
Filing date: 1994-07-07
Publication date: 1995-03-29
Anticipated expiration: 2004-07-07

Abstract

The utility model discloses a floating valve base ash valve which is composed of a valve body, a rubber ring, a valve base, a valve plate, a valve handle, etc., wherein, the valve body and the valve base are in a double-body structure, and a groove is arranged on the valve body. One half of the valve base is positioned in the groove, and the other half is higher than the groove, and is tightly pressed with the sealing surface of the valve plate. The valve plate is in a wedge shape and is fixedly connected with a gate bar. The dimensional error is automatically compensated by making use of the elastic deformation of the rubber ring when the components of the valve are processed. The sealing force between the valve base and the valve plate is increased. The structure characteristics of a clamp type plate gate valve and the wedge type valve are combined together. The utility model has the characteristics of simple structure, small size, high sealing strength, etc.

Description

Floating valve base ash valve

The utility model relates to a kind of Ash valve, and particularly a kind of floating valve seat formula Ash valve belongs to the machinery valve technical field.

Usually the valve seat of gate valve is fixed on the valve body, can not produce resiliently deformable, in order to improve its sealing, adopt the Flexible disc structure, but the flashboard resiliently deformable is limited, little to improving the valve seal amplitude, also have wafer type Flat Sluice and Wedge gate valve in addition, though former structure length is short, working pressure is lower, does not produce very big sealing force, the latter is a wedge-shaped structure because of flashboard, so can produce very big sealing force, but physical dimension is bigger, uses heavy.

The purpose of this utility model is intended to overcome the deficiency that exists with the upper gate valve structure, and a kind of floating seat formula Ash valve is provided.

Of the present utility model being contemplated that: with valve body and seat design two-part for separating, utilizing rubber to have elasticity becomes and the incompressible characteristic of volume, rubber ring is installed between valve body and the valve seat, flashboard structure is a wedge shape, under the effect of valve body and rubber ring, valve seat lumping together with the flashboard sealed junction tightly, the elastic strain of rubber ring have compensated gate part automatically and have added the size error that produce man-hour, have improved the Percent of contact area of valve seat and sealing surface of valve plate.

Fig. 1 is the utility model structure principle chart.

The utility model is to realize like this, by valve body (1), rubber ring (2), valve seat (3), flashboard (4), valve rods (5) etc. constitute floating valve seat formula Ash valve, wherein on the valve body (1) annular groove is arranged, rubber ring (2) is installed in the groove, valve Cuo (3) is an annular, half puts into groove, second half exceeds the tight pressing of sealing surface of groove and flashboard (4), flashboard (4) is fixedly connected for wedge shape and valve rod (5), the inclined-plane (6) of valve body (1) matches with the sphenoid surface of flashboard (4), when rotation valve rod (5), flashboard (4) moves down, under the effect of valve body (1) and inclined-plane (6), producing axial thrust load acts on valve seat (3) and the rubber ring (2), its reaction force increases the valve seat (3) and the sealing force of flashboard (4), and the elastic strain of rubber ring (2) has compensated the machining error between valve seat (3) and the flashboard (4) automatically.

Characteristics of the present utility model are that combining in wafer type flat gate valve structure and Wedge Gate Valves design feature is all over the body, simple in structure, sealing intensity is big, physical dimension is short, has fundamentally changed encapsulating method and the process means of conventional valve, has improved to greatest extent the sealing property of valve.

Claims

1, floating valve seat formula Ash valve is by valve body (1), valve seat (3), flashboard (4), restrictor bar formations such as (5), it is characterized in that: valve body (1) is a separated type with valve seat (3), wherein have an annular groove on the valve body (1), in rubber ring (2) is installed, valve seat (3) is an annular, and half puts into groove, and second half exceeds the tight pressing of sealing surface of groove and flashboard (4), flashboard (4) is for wedge shape and valve rod (5) are fixedly connected, and the inclined-plane (6) of valve body (1) matches with the wedge shape of flashboard (4).