CN2229012Y

CN2229012Y - Quick open-and-close valve

Info

Publication number: CN2229012Y
Application number: CN 95215069
Authority: CN
Inventors: 孙广聚
Original assignee: 李文娟
Priority date: 1995-06-16
Filing date: 1995-06-16
Publication date: 1996-06-12
Anticipated expiration: 2005-06-16

Abstract

The utility model relates to a quick open-and-close valve. On the basis of the present check valve, one end of a pin shaft extends to the outside of a valve body, and the end head of the pin shaft is provided with a wrench handle which is connected with the pin shaft through a quadrate hole; the connecting position between the outside housing of the pin shaft and the wrench handle is provided with a positioning mechanism; the other end of the pin shaft is hung in the hollow cavity of the valve body, and the pin shaft and a rocker are fixed as a whole through a pin nail. The utility model which can be used for an industrial pipeline and a water heating pipeline has the advantages of rapid open and close, reliable sealing, labour saving for operation, and long service life.

Description

Quick-acting valve

The utility model relates to a kind of quick-acting valve, is specially adapted on industrial pipeline and the plumbing pipe.

Often use gate valve, stop valve to control on industrial pipeline and the plumbing pipe and supply with vapour, liquid medium or stop supply, slow but these valves open and close, and the operation effort, working life, weak point sealed not too reliable.

The purpose of this utility model be to provide a kind of can fast opening and closing, sealing is reliable, the quick-acting valve of rapid operation.

Technical solution of the present utility model in order to achieve the above object realizes in the following way: the utility model is improved on existing safety check basis, one end of bearing pin in the existing safety check is extended to the valve body outside, its termination is equipped with removes handle, it is connected with square hole with bearing pin, the bearing pin external casing is removed a positioning means with removing the joint is provided with, the other end of bearing pin is suspended in the valve cavity, and with pin bearing pin and rocking bar is fixed as one.

The utility model opens and closes fast, and moment can finish; The media flow direction is opposite with former safety check, and pressure medium is big more, and the flap sealing force is big more, and therefore sealing is reliable; The auxilliary flap of pressure release on the flap is opened earlier before main valve clack is opened, and makes main valve clack front and back pressure tend to balance rapid operation, long service life.

Accompanying drawings most preferred embodiment of the present utility model.

Fig. 1 cuts open structural drawing for master of the present utility model;

Fig. 2 cuts open side view for office of the present utility model;

Fig. 3 is the A-A sectional view of main and auxiliary flap and rocking bar joint;

Fig. 4 is main valve clack support plate and little axle sliding connection structure schematic representation.

As shown in Figure 1, 2, the utility model is by valve body 1, main valve clack 2, rocking bar 3, bearing pin 5 and remove and form 6 etc., one end of bearing pin 5 is extended to the valve body outside, the end of this bearing pin is equipped with removes 6, removes to be connected with square hole with bearing pin and to fix with nut 7, and the bearing pin external casing is provided with a slotted hole that parallels with bearing pin 13, a spring 9 is housed in this hole, relative with spring removes being provided with a semicircle hole slot, is placed with ball 8 in this hole slot, heads on ball by spring.Shown in Fig. 1,3,4, the utility model is provided with relief hole 14 in the main valve clack center, on rocking bar, be connected with an auxilliary flap 11 that matches with relief hole, should fixedly connected with little axle 10 with rocking bar by auxilliary flap, the support plate 12 of main valve clack is provided with oval-shaped slot 15, and auxilliary flap can slidably reciprocate in groove 15.

Rotate when opening and remove 6, the moment that applies makes bearing pin 5 rotations, and drive rocking bar 3 revolves to open with flap to be opened, when revolving, rocking bar assists flap unlatching earlier when opening, the relief hole of main valve clack center is opened and is emitted the part medium earlier, and the pressure of main valve clack front and back is tended to balance, and opens moment to reduce main valve clack.Owing to remove the rotation of handle, remove the position of last hole slot being left ball simultaneously, the elastic force of spring strengthens, can make and remove being fixed on the desired position, executing an opposing torque it is set back to removing when closing, ball was stuck in again and removed in the last hole slot this moment, was in closed condition.

Claims

1, a kind of quick-acting valve, comprise valve body, be connected in the flap and the fixing bearing pin of rocking bar of rocking bar bottom, it is characterized in that: an end of bearing pin is extended to the valve body outside, its termination is equipped with removes handle, it is connected with square hole with bearing pin, the bearing pin external casing is removed a positioning means with removing the joint is provided with, and the other end of bearing pin is suspended in the valve cavity, and with pin bearing pin and rocking bar is fixed as one.

2, quick-acting valve according to claim 1, it is characterized in that: said removing positioning means is to be provided with a slotted hole that parallels with bearing pin on the bearing pin external casing, a spring is housed in this hole, relative with spring removes being provided with a semicircle hole slot, be placed with ball in this hole slot, the ball that heads on by spring.

3, quick-acting valve according to claim 1 and 2, it is characterized in that: the center of main valve clack is provided with relief hole, be connected with an auxilliary flap that matches with relief hole on rocking bar, auxilliary flap is fixedlyed connected by little axle with rocking bar, and main valve clack and rocking bar adopt and be slidingly connected.