CN2332849Y

CN2332849Y - Valve

Info

Publication number: CN2332849Y
Application number: CN 97242638
Authority: CN
Inventors: 凌长彬; 潘明浩; 顾立勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-11-13
Filing date: 1997-11-13
Publication date: 1999-08-11
Anticipated expiration: 2007-11-13

Abstract

The utility model relates to a valve. Two symmetrical ball clacks or butterfly clacks are arranged in a valve body, and the bottoms of the ball clacks or the butterfly clacks are hinged mutually. The lower part of a valve rod is fixedly connected with a guiding disk, and two cylindrical pins and two guiding slots in a circular arc shape are arranged on the guiding disk. The upper end surfaces of the ball clacks or the butterfly clacks are provided with pin holes and guiding pins to correspond to the guiding disk. The utility model reserves the characteristics of small fluid resistance, quick opening and closing, simple structure, etc. of an original ball valve or an original butterfly valve, and also has the characteristics of high temperature resistance, high pressure resistance, corrosion prevention and antistatic performance; in addition, the knotting phenomenon and the pulling phenomenon which are caused between the sealing surfaces are eliminated. Thereby, the quality of a product is stable, and the service life of the product is prolonged greatly.

Description

A kind of valve

The utility model relates to a kind of valve, particularly a kind of controlling plumbing fixtures medium circulation or the valve that blocks.

At present, in the middle of controlling plumbing fixtures medium circulation or the valve that blocks, the structural type of ball valve or butterfly valve and performance thereof are superior than other valves, and it has advantages such as simple in structure, that switch is rapid.In order further to improve wear-resisting, high temperature resistant, the corrosion resistant performance of sealing surface, some people is the pile-up welding hard alloy material on the sealing surface of valve, plays certain effect.But, owing to also exist easy biting the end of knot between the sealing surface, phenomenon such as pull, and adopt soft materials such as nylon, teflon or rubber to make seal elements, and then having influenced high temperature resistant, high pressure resistant, the decay resistance of valve, using scope is restricted.

The purpose of this utility model is the defective that occurs in order to overcome in the prior art, provides a kind of simple in structure, and it is rapid, high temperature resistant, high pressure resistant, corrosion-resistant to reach switch, can make again biting the end of knot does not take place between the sealing surface, to pull the valve of phenomenon.

The utility model has adopted following technological scheme to reach its purpose:

At a kind of valve body that comprises, in the middle of the valve that valve gap, valve rod, handle, ball clack or butterfly lobe are constituted, valve gap is fixedlyed connected with the valve body upper end; Be equipped with valve rod in the valve gap, this valve rod valve gap relatively rotates, and directly upwards also is fixedly equipped with guide finger at it, moves in the guiding groove of this guide finger on the valve gap wall, makes valve rod be subjected to do up, descending after the handle turning effort or rotatablely move; The two symmetrical ball clacks or the butterfly lobe that have sealing surface are put among valve body, and the bottom of this two ball clack or butterfly lobe is hinged together; Fixedly connected with positioning disk in the bottom of valve rod, be equipped with straight pin and guiding groove on this positioning disk, straight pin or guiding groove can be a pair of and symmetrical, and the guiding groove track is a circular arc, and the one end arrives the distance at positioning disk center greater than the other end to the distance at positioning disk center; In addition, ball clack or butterfly lobe upper-end surface also be equipped with positioning disk on straight pin and corresponding pin-and-hole of guiding groove and guide finger.

Characteristics such as the utility model had both kept former ball valve or the butterfly valve fluid resistance is little, and switch is rapid, and is simple in structure have high temperature resistant, high pressure resistant, corrosion-resistant, antistatic performance again, and have eliminated the biting the end of knot that occurs between the sealing surface, pull phenomenon.Constant product quality, improve working life greatly.

To further specify structure characteristic of the present utility model based on drawings and Examples below.

Fig. 1 is the utility model structural representation;

Fig. 2 is the plan view of positioning disk in the utility model;

Fig. 3 is the guiding groove structural representation on the valve gap wall in the utility model;

Fig. 4 is the schematic representation of the utility model when the ball clack rounding state;

Fig. 5 is the schematic representation of the utility model when the full open state.

Referring to Fig. 1, the upper end of valve body 7 and valve gap 3 with fixedly connected.Be equipped with valve rod 4 in the valve gap 3, these valve rod 4 upper ends connect one handle 1, and this handle 1 also can drive valve rod 4 relative valve gaps 3 and rotate.This valve rod 4 also is fixedly equipped with guide finger 2 diametrically, and operation in the guiding groove 3.1 (referring to Fig. 3) of this guide finger 2 on valve gap 3 walls makes valve rod 4 be subjected to do up, descending after handle 1 turning effort or rotatablely move.The two symmetrical ball clacks 6 that have sealing surface are put among valve body 7, and the bottom of this two ball clack 6 is hinged together by locating stud 8.Fixedly connected with a positioning disk 5 in the bottom of valve rod 4.See also Fig. 2, symmetry is equipped with two straight pins 5.1 and two guiding grooves 5.2 on the positioning disk 5, and these guiding groove 5.2 tracks are circular arc, one end A to the distance at positioning disk 5 centers 0 greater than the distance of the other end B to positioning disk 5 centers 0.In addition, ball clack 6 upper-end surfaces also be equipped with positioning disk 5 on straight pin 5.1 and guiding groove 5.2 corresponding pin-and-hole 6.1 and guide fingers 6.2.

When the utility model need be opened, counter clockwise direction rotatable handle 1, valve rod 4 is subjected to guiding groove 3.1 restrictions of guide finger 2 on valve gap 3, along this guiding groove 3.1 horizontal segment grooves rotation, positioning disk 5 is also followed rotation, guide finger 6.2 on ball clack 6 upper-end surfaces is slided to the B end by the A end in guiding groove 5.2, and ball clack 6 inwardly draws the sealing surface (referring to Fig. 4) that leaves on the valve body 7 in; Handle continues rotation, and guide finger 2 is descending along 3.1 oblique sections grooves of guiding groove, and valve rod 4 and positioning disk 5 descend, and straight pin 5.1 just enters in the pin-and-hole 6.1 on the ball clack 6 on the positioning disk 5, then drives ball clack 6 and rotates and all open (referring to Fig. 5) until valve.

Otherwise, when the needs throttle down, the handle 1 that turns clockwise, positioning disk 5 drives ball clack 6 by straight pin 5.1 and rotates, and makes the runner hole dislocation on its runner hole and the valve body 7; Continue rotatable handle 1, guide finger 2 is up along 3.1 oblique sections grooves of guiding groove, valve rod 4 and positioning disk 5 rise, the pin-and-hole 6.1 that straight pin 5.1 breaks away from the ball clack 6, guide finger 6.2 on ball clack 6 upper-end surfaces is slided to the A end by the B end in guiding groove 5.2, ball clack 6 outwards struts motion, and ball clack 6 sealing surfaces are close to the sealing surface on the valve body 7, valve closes.

Technological scheme described in the present embodiment is applicable to ball clack, also is suitable for butterfly valve, and in the time of ball clack need being replaced with the butterfly lobe certainly, miscellaneous part also should be done the adaptability conversion.

Claims

1, a kind of valve, comprise valve body, valve gap, valve rod, handle, ball clack or butterfly lobe, valve gap is fixedly connected on the valve body upper end, valve rod is put the central authorities at valve gap, and valve gap rotates relatively, this valve rod also is fixedly equipped with guide finger diametrically, move in the guiding groove of this guide finger on the valve gap wall, make valve rod be subjected to do after the handle turning effort up, descending or rotatablely move, be equipped with two ball clacks or the butterfly lobe of band sealing surface in the valve body, the bottom of this two ball clack or butterfly lobe is hinged, it is characterized in that: fixedly connected with positioning disk in the bottom of valve rod, is equipped with straight pin and guiding groove on this positioning disk, ball clack or butterfly lobe upper-end surface be equipped with positioning disk on straight pin and corresponding pin-and-hole of guiding groove and guide finger.

2, valve according to claim 1 is characterized in that: the guiding groove track on the described positioning disk is a circular arc.

3, valve according to claim 2 is characterized in that: described guiding groove one end arrives the distance at positioning disk center greater than the other end to the distance at positioning disk center.

4, according to claim 1,2,3 described valves, it is characterized in that: two straight pins and two guiding grooves are symmetrical on this positioning disk.