CN2127758Y

CN2127758Y - Normally open three-way valve for small atmospheric tea-bath boiler

Info

Publication number: CN2127758Y
Application number: CN 92204781
Authority: CN
Inventors: 王常有; 王常林; 郭寅生; 金德春
Original assignee: HAIYI METAL STRUCTURE FACTORY HAIDIAN DISTRICT BEIJING
Current assignee: HAIYI METAL STRUCTURE FACTORY HAIDIAN DISTRICT BEIJING
Priority date: 1992-03-23
Filing date: 1992-03-23
Publication date: 1993-03-03
Anticipated expiration: 2002-03-23

Abstract

The utility model relates to a billiard coded lock which is provided with the function of anti-mistaken locking and used as the coded lock. The utility model adds a cryptographic equipment and accessories of the cryptographic equipment on the general billiard coded lock. The turn knob of the device is equipped on the surface of the tapered end. When people mistakenly lock the key in the room, as long as people know the secret code, rotate the specify turn and the relevant secret code, sequentially match with the code, outwardly draw out the turn knob and continue rotating, the lock can be easily opened. When the lock is artificially insured, the device of the cryptographic equipment is invalid. The utility model recoveries the safety function of the billiard coded lock. When the lock is not insured intentionally, the utility model can be used as a coded lock. The utility model is provided with the features of simple structure, easy manufacture, easy use and installation, specious locking face, reliable and safety. The utility model raises the grade of the billiard coded lock.

Description

Normally open three-way valve for small atmospheric tea-bath boiler

The utility model is a three-way valve open in usual, be a kind of relate to small-sized normal pressure tea-bath furnace often open three-way valve.

Small-sized fire coal, gas normal-pressure tea, bath, heating water-heating furnace are a kind of multipurpose standard pressure water-heating furnaces, because this stove is made easily, non-pressure vessel handling safety, cost are low, multi-functional, so receive praises from customers.In order to make the best use of everything, this stove also can produce steam and be used for steamed rice, considers the safety of this atmosphere furnace itself, and when producing the source with hot water channel's valve closing of this stove as steam, the valve of steam line outlet must communicate with seal container not.Now the way of Cai Yonging is to be installed on respectively on steam, the hot water pipeline with two valves, and with its interlock, another was closed and realizes when one was opened with mechanical linkage, obviously complicated, the operation inconvenience of structure, and price is also more expensive, and very undesirable.

The purpose of this utility model is a kind of three-way valve of often opening of design, it makes the output of this atmosphere furnace or communicates with the steam output pipe road or communicate with the hot water delivery pipe road, or all communicate with the two simultaneously, so that this atmospheric hot-water boiler remains on safe operation under the normal pressure operating mode forever, and the existing interlock valve of its structure is much simple, and easy to operate.

The purpose of this utility model is to realize like this, use a three way valve, the center line that makes its three through holes at grade, and the three intersects vertically a bit, and the center line of two delivery outlets point-blank, the curve bath of a breach and one 90 ° is driven in the side of spool, and insert in the curve bath by the locating stud that valve body is provided with and to locate.When driving valve core rotation with the handle that is linked to spool, the spool breach make all the time the inlet that is connected with the normal pressure tea-bath furnace or and the outlet I is logical or the outlet II is logical, or the three all communicates, because this two outlet, one is hot water or boiling water delivery outlet, one is steam outlet, and the container of the normal pressure that this two delivery outlet all communicates with atmosphere communicates, and is in atmospheric pressure state forever and guarantees safety so this three-way valve can be guaranteed tea-bath furnace.

The utility model has the advantages that: simple in structure, to make easily, cost is low, and is easy to operate, can guarantee when the normal pressure tea-bath furnace uses very safe.

Further specify structure of the present utility model with embodiment and accompanying drawing below.

Description of drawings

Fig. 1 the utility model embodiment's structural representation.

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

By Fig. 1,2 as seen, present embodiment is by three way valve 3, spool 4, the handle 9 that links to each other with spool, at the bottom of the valve body 1, valve gap 10, sealing gasket 2,7, seal ring 6, briquetting 8 is formed, the center line of three through holes on its valve body is in a plane, the three intersects vertically a bit, and the center line of two delivery outlets point-blank, the diameter of spool 4 equates with the endoporus of valve body 3, it is characterized in that having on spool 4 sides breach 41 and one 90 ° of curve baths 42, and both are oppositely arranged, the height h of breach 41 is equal to or slightly less than the diameter of through hole on the valve body, the width B of breach 41 equals delivery outlet outside a(or a ') to inlet opening outside b(or b ') distance, valve body 3 is provided with the positioning dowel 5 of insertion curve bath.

When handle drives valve core rotation, when curve bath 42 during at 0 °, the import on the valve body 3 and the first outlet all-pass, and when curve bath 42 during at 90 °, the import on the valve body 3 and the second outlet all-pass, when other positions of curve bath, then this import all partly communicates with first, second outlet, thereby make the normal pressure tea-bath furnace that is connected with import no matter under any situation, be normal pressure, guaranteed safety.

Present embodiment is designed to upper and lower two end openings, centre with valve body has an endoporus that equates with valve core diameter, three sides to have the cuboid of three through holes, and such valve body is made easily, assembles more convenient.

Claims

1, a kind of normal pressure tea-bath furnace that is used for, air heating stove often open three-way valve, by three way valve 3, spool 4, the handle 9 that links to each other with spool, at the bottom of the valve body 1, valve gap 10, sealing gasket 2,7, seal ring 6, briquetting 8 is formed, the center line of three through holes on its valve body is in a plane, the three intersects vertically a bit, and the center line of two delivery outlets point-blank, the diameter of spool 4 equates with the endoporus of valve body 3, it is characterized in that having on spool 4 sides breach 41 and-90 ° of curve baths 42, and both are oppositely arranged, the height h of breach 41 is equal to or slightly less than the diameter of through hole on the valve body, the width B of breach 41 equals the distance of delivery outlet outside a to inlet opening outside b (or b '), and valve body 3 is provided with the positioning dowel 5 that inserts curve bath.

2,, it is characterized in that described valve body 3 is that a upper/lower terminal opening, centre have an endoporus, three sides to be provided with the cuboid of three through holes by the described three-way valve of often opening of claim 1.