CN2583464Y - Soft sealing sluice valve - Google Patents

Abstract

The utility model relates to a gate valve, which comprises a valve body (1), a gate plate (2) and a seal ring (3). the lower part of the valve body (1) is designed into a circular arc shape, and the seal ring (3) is designed into a pi shape by rubber and connected with the gate plate (2). When the utility model works, no contaminant can deposit at the bottom of the valve body (1). the end surfaces of the curved surfaces of the seal ring (3) and the valve body (1) are sealed without relative sliding friction during opening and closing process, and thus the gate plate (2) has small moment when opened and closed and long service life.

Description

Soft sealing gate valve

One, technical field:

The utility model relates to gate valve.

Two, background technique:

Currently be used for municipal administration, electric power, control gold, the gate valve of water delivery engineering such as mine, chemical industry, building material industry waste water treatment engineering and being used to irrigated, urban life, reservoir, its seal ring is generally made of metallic material, it is a kind of metal hard-sealing gate valve, keying moment is big, during valve opening and closing, between seal ring and valve body, the flashboard sliding friction is arranged, easy to wear; Simultaneously, because the valve body lower portion of gate valve is fluted, when liquid passes through valve body, the one, cause liquid flowing resistance big, the 2nd, the dirt in the liquid easily is deposited in the groove, the effect of influence sealing.

Three, goal of the invention:

The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of soft sealing gate valve of good sealing effect is provided.

Four, technology contents:

The utility model includes valve body (1), flashboard (2), seal ring (3), it is characterized in that: the bottom of valve body (1) is a circular arc, and seal ring (3) is " π " shape, and is connected on the flashboard (2).

Seal ring (3) is made of rubber.

Advantage of the present utility model is as follows:

(1), because the bottom of valve body is a circular arc, when liquid therefrom by the time, dirt no longer is deposited on the bottom, and flows together in company with liquid, like this, the resistance of flow of fluid is little.

(2), because the flashboard seal ring be " π " shape, with valve body be end face seal, do not have slide relative friction during keying, so moment is little during the flashboard keying, long service life.

Five, description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model side view;

Fig. 3 is Fig. 2 C-C rotation diagram.

Six, embodiment:

Among Fig. 1-2: valve gap (6) is connected with valve body (1), flashboard (2) is in valve body (1), flashboard (2). be connected with valve rod (5), the top of valve rod (5) is connected with handwheel (8), indicator of opening (9), filler (7), the bottom of valve body (1) is a circular arc, " π " shape soft seal circle (3) curved surface of making of rubber vulcanizes on the curved surface of flashboard (2), when the needs Open valve, handwheel (8) rotates flashboard (2) is risen, liquid is by flowing out in the valve body (1), because the bottom of valve body (1) is a circular arc, its dirt also flows out thereupon.No longer be deposited in the valve body (1), when the needs closure valve, handwheel (8) backward rotation, flashboard (2) descends, and is stuck in upward formation soft seal of valve body (1) with seal ring (3).

Claims (2)

1. a soft sealing gate valve includes valve body (1), flashboard (2), seal ring (3), and it is characterized in that: the bottom of valve body (1) is a circular arc, and seal ring (3) is " π " shape, and is connected on the flashboard (2).

2. soft sealing gate valve according to claim 1 is characterized in that: seal ring (3) is made of rubber.

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