CN203098920U

CN203098920U - Sluice valve board

Info

Publication number: CN203098920U
Application number: CN 201220732520
Authority: CN
Inventors: 汪爱保
Original assignee: ANHUI TONGLING KELI VALVE Co Ltd
Current assignee: ANHUI TONGLING KELI VALVE Co Ltd
Priority date: 2012-12-27
Filing date: 2012-12-27
Publication date: 2013-07-31
Anticipated expiration: 2022-12-27

Abstract

The utility model relates to a sluice valve board which comprises a body. Two centers of two faces of the body are arranged to be convex, and matching faces are arranged at the two faces of the body. The matching faces are matched with a valve board sealing ring on the valve body. By arranging the centers of the two faces of the body to be convex, namely the thickness of the centers are larger than those of the peripheries, intensity of the sluice valve board is improved, micro-distortion affected by temperature and water pressure is effectively prevented, and therefore sealing performance is prevented form being reduced.

Description

A kind of gate valve valve plate

Technical field

The utility model relates to the gate valve field, relates in particular to a kind of gate valve valve plate.

Background technique

Valve is the crucial controlling component in the fluid delivery system, have by, adjusting, water conservancy diversion, prevent functions such as adverse current, voltage stabilizing, shunting or overflow pressure release.The valve that is used for liquid control system, from the simplest stop valve to very complicated robot control system(RCS) used various valves, its kind and specification are quite various.Valve can be used for controlling flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.

Existing valve mechanism, its structural representation as shown in Figure 1.Drive valve plate by the handwheel rotation and move up and down, realize closing or opening of valve like this.But little distortion usually takes place in valve plate under different temperature and different hydraulic pressure, the Gate-valve sealing performance is reduced.

The model utility content

In view of this, being necessary to provide a kind of prevents because the influence of temperature and hydraulic pressure causes the little distortion of valve plate, and makes the gate valve valve plate of Gate-valve sealing reduction.

The utility model is achieved in that a kind of gate valve valve plate, comprises body, and convex panel is arranged in the center portion, two sides of described body.

Further, the two sides of described body is provided with fitting surface.

Further, described fitting surface matches with valve plate seal ring on the described valve body.

The advantage of the gate valve valve plate that the utility model provides is: by convex panel is arranged in the center portion, two sides of body, be that center thickness is greater than thickness all around, improve its intensity, effectively prevent to cause sealing to reduce owing to little distortion of temperature and influence of hydraulic pressure generation.

Description of drawings

Fig. 1 is an existing valve mechanism schematic representation described in the background technique.

Fig. 2 is the plan view of the utility model gate valve valve plate.

Fig. 3 is the left view of the utility model gate valve valve plate.

Embodiment

In order to make the purpose of this utility model, technological scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

See also Fig. 1, Fig. 1 is an existing valve mechanism schematic representation described in the background technique;

Existing valve comprises valve body 1, valve gap 2, valve plate 3, valve rod 4, valve plate seal ring 5, gland 6, handwheel 7 and valve seals 8.The inside of valve body 1 is provided with bigger cavity, and there is unlimited opening at two ends, is convenient to entering and flowing out of fluid like this.Valve gap 2 is installed in the top of valve body 1, and valve gap 2 inside are provided with certain cavity, and the cavity of this cavity and valve body 1 inside mates mutually.Be provided with valve seals 8 between valve gap 2 and the valve body 1,, utilize the locking nut (not shown) that the three tightly is locked together in case fluid is revealed.The oral area of valve gap 2 upper ends is less, and the oral area inboard is provided with internal thread.

Bigger cavity central position at valve body 1 is equipped with valve plate 3, between the both sides of valve plate 3 and the valve body 1 valve plate seal ring 5 is installed, and valve plate 3 is flat tabular, and its size is bigger slightly than the cavity in the valve body 1, just in time can stop fluid to flow in valve body 1.Valve rod 4 is installed directly over the valve plate 3, and valve rod 4 is provided with outside thread.Valve rod 4 passes the oral area of valve gap 2 upper ends, and the internal thread of outside thread on the valve rod 4 and valve gap 2 oral areas is meshing with each other.

Be provided with gland 6 in valve gap 2 upper ends, gland 6 neutral positions are provided with center hole, gland 6 and valve gap 2 screw-threaded couplings.Gland 6 upper ends are provided with handwheel 7, and handwheel 7 centers are provided with elongated center-pole 7a, and center-pole 7a passes the center hole of gland 6, are connected and fixed with valve rod 4.

When rotation hand wheel 7, center-pole 7a drives valve rod 4 rotations, and under valve gap 2 oral area screw-thread fit, valve rod 4 rotations also move up and down, and drive moving up and down of valve plate 3 by moving up and down of valve rod 4 like this, finally realize the open and close of valve.

See also Fig. 2 and Fig. 3, and in conjunction with Fig. 1, wherein Fig. 2 is the plan view of the utility model gate valve valve plate, Fig. 3 is the left view of the utility model gate valve valve plate.

Gate valve valve plate described in the utility model is to improve on existing valve mechanism basis, and it improves component and comprises: valve plate.

Described gate valve valve plate comprises body 3 ', and convex panel is arranged in the center portion, two sides of described body 3 ', promptly center thickness greater than around thickness, the two sides of described body 3 ' is provided with fitting surface 9, described fitting surface 9 matches with valve plate seal ring 5 on the valve body 1.

By convex panel is arranged in the center portion, two sides of body 3 ', promptly center thickness improves its intensity greater than thickness all around, effectively prevents to cause sealing to reduce owing to little distortion of temperature and influence of hydraulic pressure generation.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. a gate valve valve plate comprises body (3 '), it is characterized in that, convex panel is arranged in the center portion on the two sides of described body (3 ').

2. gate valve valve plate according to claim 1 is characterized in that, the two sides of described body (3 ') is provided with fitting surface (9).

3. gate valve valve plate according to claim 2 is characterized in that, described fitting surface (9) matches with valve plate seal ring (5) on the valve body (1).