CN202545848U

CN202545848U - Knife-edge valve

Info

Publication number: CN202545848U
Application number: CN201220064320XU
Authority: CN
Inventors: 殷方方; 曹成
Original assignee: SHANDONG ZHONGLI MACHINERY MANUFACTURE CO Ltd
Current assignee: Shandong Zhongli Machinery Manufacturing Co., Ltd.
Priority date: 2012-02-27
Filing date: 2012-02-27
Publication date: 2012-11-21
Anticipated expiration: 2022-02-27

Abstract

The utility model discloses a knife-edge valve which is strictly closed and has a good using effect. The knife-edge valve comprises a valve body and a valve plate, wherein the valve plate is arranged in the valve body, and a U-shaped framework seal is arranged in the valve body, and is fixed in the valve body through bolts; and the outer side of the U-shaped framework seal is provided with rubber, and spring steel is contained in the rubber. The knife-edge valve has the advantages that when the knife-edge valve is used, the valve plate has the function of cutting off foreign matter, and the foreign matter is directly removed to two sides of the valve plate, so that the internal leakage caused by a reason that the valve is not strictly closed because the valve is locked by the foreign matter is completely eradicated; and the valve plate is subjected to back pressure when closed, and does not offset. Therefore, the knife-edge valve is strictly closed and has a good using effect.

Description

Knife-edge valve

Technical field

The utility model relates to a kind of valve mechanical field, relates in particular to a kind of knife-edge valve.

Background technique

At present, the seal arrangement of the valve body of domestic wafer type knife-edge valve is installed in a side of valve body, on a side of valve body, is designed with a circle groove; Sealing material is filled in the groove; Two valve body therebetween have flashboard, and the one side of flashboard closely contacts with sealing material, has played seal action; The knife-edge valve of this structure in use, sometimes because in the valve existence of foreign matter is arranged, the stuck flashboard of foreign matter is not closed completely and causes valves leakage and be directed at flashboard, has reduced the using effect of knife-edge valve.

Summary of the invention

The purpose of the utility model provide a kind of close tight, the knife-edge valve that using effect is good.

For realizing above-mentioned purpose, the technological scheme that the utility model adopted is:

A kind of knife-edge valve, comprising valve body, flashboard, flashboard is installed in the valve body, and its characteristics are: be designed with the U-shaped reinforced seal in the described valve body, the U-shaped reinforced seal is through being bolted in the valve body.

According to above-mentioned knife-edge valve, its characteristics are: the described U-shaped reinforced seal outside is designed to rubber, comprises spring steel in the rubber.

The utility model has the advantages that: in use; Flashboard in the utility model has the cut-out function to foreign matter, and foreign matter is directly got rid of in the flashboard both sides, has stopped the interior leakage that valve is not closed completely because foreign matter is stuck and causes;, flashboard receives the pressure at the back side when cutting out, the flashboard non-migration.Therefore, the utility model is closed tight, and using effect is good.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the novel middle U-shaped reinforced seal structural representation of this reality.

Fig. 4 is the B-B sectional view of Fig. 3.

In the accompanying drawing

1, valve body 2, flashboard 3, U-shaped reinforced seal 4, rubber 5, spring steel

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

A kind of knife-edge valve, as Fig. 1,2, shown in, comprising valve body 1, flashboard 2, flashboard 2 is installed in the valve body 1, is designed with U-shaped reinforced seal 3 in the valve body 1, U-shaped reinforced seal 3 is through being bolted in the valve body 1.

In the present embodiment, like Fig. 3, shown in 4, U-shaped reinforced seal 3 outsides are designed to rubber 4, include spring steel 5 in the rubber 4.

The flashboard drive unit of the utility model can adopt and open handle, manually slide fastener, gear transmission, pneumatic, electronic etc. soon.

The technical Analysis of the utility model:

U-shaped reinforced seal in the utility model has adopted rubber to form with the casting that combines of spring steel; The U-shaped reinforced seal outside is a rubber; Rubber hardness reaches 80-95; U-shaped reinforced seal inboard contains spring steel, and U-shaped reinforced seal decay resistance reaches 96%-99%, and wear-resistant, not dry slag, good sealing effect.

The beneficial effect of the utility model is: the utility model might be worn at the long-time rubber of back U-shaped reinforced seal that uses; And spring steel is sealing and uses the firmest assurance; U-shaped reinforced seal in the utility model not only improves the service time of sealing, has more improved the working life of valve.

Embodiment recited above describes the preferred implementation of the utility model; Be not that design and protection domain to the utility model limits; Under the prerequisite that does not break away from the utility model design concept; Common engineers and technicians make the technological scheme of the utility model in related domain various modification and improvement all should fall into the protection domain of the utility model.

Claims

1. knife-edge valve, comprising valve body (1), flashboard (2), flashboard (2) is installed in the valve body, it is characterized in that: be designed with U-shaped reinforced seal (3) in the described valve body (1), U-shaped reinforced seal (3) is through being bolted in the valve body (1).

2. knife-edge valve according to claim 1 is characterized in that: described U-shaped reinforced seal (3) outside is designed to rubber (4), comprises spring steel (5) in the rubber (4).