CN202381821U

CN202381821U - Connecting rod type airtight valve

Info

Publication number: CN202381821U
Application number: CN201120477119XU
Authority: CN
Inventors: 宋国旺
Original assignee: TIANJIN GAOKE YUTONG DEFENCE EQUIPMENT MANUFACTURING Co Ltd
Current assignee: TIANJIN GAOKE YUTONG DEFENCE EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2011-11-25
Filing date: 2011-11-25
Publication date: 2012-08-15
Anticipated expiration: 2021-11-25

Abstract

The utility model relates to a connecting rod type airtight valve. The airtight valve comprises a valve body, a valve plate and a connecting rod shaft, wherein two coaxial shaft holes are processed on the valve body, the connecting rod shaft is in a sliding fit with the two shaft holes of the valve body, a double connecting rod is fixed on the connecting rod shaft and connected with the valve plate; a valve plate airtight ring is coated at the outer diameter position of the valve plate; and a connecting rod shaft airtight ring is coated at a shaft rod position where the connecting rod joints the two shaft holes of the valve body. According to the connecting rod type airtight valve, the sealing structure of the connecting rod type airtight valve is improved, the valve plate airtight ring is coated at the outer diameter position of the valve plate, the connecting rod shaft airtight ring is coated at the shaft rod position where the connecting rod joints the two shaft holes of the valve body, so that the sealing effect is greatly improved, the cost of labor and capital is reduced, and the service life of the airtight valve is prolonged.

Description

The linkage type sealed valve

Technical field

The utility model relates to valve technology field, and particularly a kind of linkage type sealed valve is applicable to cut-out, throttling, pressure regulation and the change flow direction etc. of pipeline medium (water, air and oil product etc.).

Background technique

The sealed valve industry is the universal machine important branch, and sealed valve is the important component part in the civil air defense constructions and installations, is mainly used in cut-out, throttling, pressure regulation and the change flow direction etc. of pipeline medium (water, air and oil product etc.).Sealed valve quality good and bad directly influence these devices normally, safe handling and safeguard function, and play crucial effects.Current, putting into operation of national level, city-level key project needs a large amount of valve products supporting with it; The airtight degree of sealed valve is the important symbol of quality of product; Yet the sealing configuration that existing linkage type sealed valve adopts usually is: the external diameter at valve plate coats seal ring; When valve plate is closed,, make the good sealing of assurance between valve plate and the valve body through seal ring.

But; The frequent opening and closing of sealed valve can cause the wearing and tearing between the axis hole on pitman shaft and the valve body to increase, when may wear to a certain degree; Will form the slit between pitman shaft and the axis hole, thereby pipeline medium (water, air and oil product etc.) is revealed from the slit.Therefore, shorten the working life of sealed valve, and the sealed valve that often more renews also will cause the cost of artificial and fund to increase; So how to address the above problem, to become the problem of industry technician research.

Summary of the invention

The purpose of the utility model is exactly for overcoming the deficiency of existing technology; Difficult problem to the sealing of linkage type sealed valve; A kind of new technological scheme is provided; Promptly guarantee good sealing effect, reduce the cost expenditure of artificial and fund, the working life of improving sealed valve through improving linkage type sealed valve sealing configuration.

The utility model is to realize through such technological scheme: the linkage type sealed valve; Comprise valve body, valve plate and pitman shaft; It is characterized in that: be processed with two coaxial axis holes on the valve body; Two axis holes of pitman shaft and valve body are slidingly matched, fixing double link on the pitman shaft, and double link is connected with valve plate; The outer radius of valve plate coats the airtight circle of valve plate; The axostylus axostyle place of the junction of two axis holes of pitman shaft and valve body coats the airtight circle of pitman shaft.

The material of the airtight circle of pitman shaft is: rubber, the material of the airtight circle of valve plate is: rubber.

The beneficial effect of the utility model is: through improving linkage type sealed valve sealing configuration, at the airtight circle of outer radius coating valve plate of valve plate 2; Axostylus axostyle place in the junction of two axis holes of pitman shaft and valve body coats the airtight circle of pitman shaft, has overcome the defective that existing technology exists, and has improved sealing effect greatly, reduces cost expenditure artificial and fund, the working life of raising sealed valve.

Description of drawings

Fig. 1, linkage type sealed valve plan view;

Fig. 2, linkage type sealed valve side view.

Among the figure: 1. valve body, 2. valve plate, 3. pitman shaft, 4. double link, the 5. airtight circle of pitman shaft, the 6. airtight circle of valve plate, 7. blocking device, 8. handle.

Embodiment

Understand the utility model for clearer, describe in detail in conjunction with accompanying drawing and embodiment:

As depicted in figs. 1 and 2, the linkage type sealed valve comprises valve body 1, valve plate 2 and pitman shaft 3, is processed with two coaxial axis holes on the valve body 1, and pitman shaft 3 is slidingly matched with two axis holes of valve body 1, fixing double link 4 on the pitman shaft 3, and double link 4 is connected with valve plate 2;

The outer radius of valve plate 2 coats the airtight circle 6 of valve plate; Pitman shaft 3 coats the airtight circle 5 of pitman shaft with the axostylus axostyle place of the junction of two axis holes of valve body 1.

The material of the airtight circle 5 of pitman shaft is a rubber; The material of the airtight circle 6 of valve plate is a rubber.

According to above-mentioned explanation, can realize the scheme of the utility model in conjunction with art technology.

Claims

1. linkage type sealed valve; Comprise valve body (1), valve plate (2) and pitman shaft (3); It is characterized in that: be processed with two coaxial axis holes on the valve body (1); Pitman shaft (3) is slidingly matched with two axis holes of valve body (1), and pitman shaft (3) is gone up fixedly double link (4), and double link (4) is connected with valve plate (2); The outer radius of valve plate (2) coats the airtight circle of valve plate (6); Pitman shaft (3) coats the airtight circle of pitman shaft (5) with the axostylus axostyle place of the junction of two axis holes of valve body (1).

2. linkage type sealed valve according to claim 1, it is characterized in that: the material of the airtight circle of pitman shaft (5) is a rubber, the material of the airtight circle of valve plate (6) is a rubber.