CN2563378Y

CN2563378Y - Large bore easy open and close slide valve

Info

Publication number: CN2563378Y
Application number: CN 02276139
Authority: CN
Inventors: 金行志
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-19
Filing date: 2002-08-19
Publication date: 2003-07-30
Anticipated expiration: 2012-08-19

Abstract

The utility model provides a large bore easy open and close slide valve, comprising a valve body, a valve seat, an upper valve flap, a thrust bearing, a valve cover, a valve stem and a handle. The utility model is suitable for various gas and liquid media and has the function of a positive channel and a reverse channel. Moreover, the valve seat and the valve flap of the utility model take the structure of a slide valve, thereby the valve is easy to open and close when the bore is large.

Description

Heavy caliber easily opens and closes guiding valve

Technical field: the utility model belongs to the valve class in the mechanical engineering, the guiding valve that particularly a kind of heavy caliber easily opens and closes.

Background technique: in present industrial production, main open valve has gate valve, stop valve, ball valve, butterfly valve and plunger valve; Gate valve, stop valve and ball valve as main flow is big because of pressure, bore is big, and causes the unlatching difficulty of valve.For example: some heavy caliber gate valve on the field produces line, the artificial unlatching once needed 1～2 hour and needs several workmans to open operation by turns.As seen, the existence in reality is produced of gate valve, stop valve and ball valve is heavy and open difficult contradiction, and this contradiction is along with bore increases and apparent more giving prominence to.

Summary of the invention: the purpose of this utility model is the guiding valve that a kind of heavy caliber of design easily opens and closes, the technological scheme that adopts is to be provided with valve rod in the middle of valve body, around the valve rod be successively from top to bottom: the handle of valve stem tip, the Gland on valve rod top, filler and peripheral valve gap thereof, valve gap is divided in respect of thrust-bearing, bearing is the concave-convex clutch of valve rod lower end and last flap down, and last flap below is a lower valve base, all is provided with one or more discharge orifices on both structures accordingly.

This programme makes this valve just have owing to adopted above structure, the function of anti-runner, and the valve seat of this valve, flap are sliding valve structure, this valve is suitable for various liquid, gas medium passes through, even during heavy caliber, the artificial unlatching, closure is all very light.

Description of drawings: Fig. 1 is a structural representation of the present utility model;

Wherein: 1-valve body, 2-lower valve base, 3-last flap, 4-exterior window trim, 5-thrust-bearing, 6-valve rod, 8-filler, 9-Gland, 10-handle.

Embodiment: as shown in Figure 1, the utility model is made up of valve body 1, lower valve base 2, last flap 3, exterior window trim 4, thrust-bearing 5, valve gap 6, valve rod 7 and filler 8, Gland 9, handle 10, the centre of valve body 1 is a valve rod 7, the following part of valve rod 7 is a concave-convex clutch with last flap 3, all have corresponding one or more discharge orifice on the lower valve base 2 of last flap 3 and its below, when the discharge orifice of lower valve base 2 overlapped with the discharge orifice of last flap 3, valve was opened; When the discharge orifice of lower valve base 2 overlapped with the flap of last flap 3, valve cut out; The angle that rotatable handle 10 is certain has just driven last flap 3 with valve rod 7 and has also rotated a certain angle, this moment valve to open or close be to go up flap 3 to do the rotation of sliding move on lower valve base 2.

When pressure medium from epicoele downwards from exterior window trim 4, go up flap 3, when lower valve base 2 flows into the valve cavity of resorptions, pressure on the last flap 3 passes to valve body 1 by lower valve base 2, at this moment, rotatable handle 10, rotating force drives flap 3 by valve rod 7 and does rotation, last flap 3 just is close to lower valve base work and slide is moved, so this opening of valves, closure are all very slim and graceful; Otherwise, when pressure medium from cavity of resorption through lower valve base 2, when going up flap 3 and flowing into epicoeles, the pressure of valve seat 2, last flap 3 is delivered on the thrust-bearing 5 by valve rod 7, at this moment, rotatable handle 10 and flap 3 are done and are opened and closed motion, owing to adopted the structure of thrust-bearing, so opening and closing of this valve also seems very light.

Thrust bearing part of the present utility model can be rolling bearing or sliding bearing, and the material of bearing can be metal, stupalith or other nonmetallic material; The lower valve base of this valve and the material of last flap can be metal, stupalith or other nonmetallic material.

Claims

1, a kind of heavy caliber easily opens and closes guiding valve, by valve body (1), exterior window trim (4), lower valve base (2), last flap (3), valve gap (6), valve rod (7) and filler (8), Gland (9), handle (10) is formed, it is characterized in that: the centre of valve body (1) is valve rod (7), around valve rod (7) be successively from top to bottom: the upper end of valve rod (7) is handle (10), the top of valve rod (7) is Gland (9), filler (8), around filler (8) and the gland (9) is valve gap (6), periphery under the valve gap (6) is valve body (1), in the valve body is exterior window trim (4), the interior valve gap of exterior window trim (4) (6) has thrust-bearing (5), and bearing (5) lower end is provided with flap (3), lower valve base (2).

2, heavy caliber as claimed in claim 1 easily opens and closes guiding valve, it is characterized in that: last flap (3) concave-convex clutch of valve rod (7) end portion and its below; All have one or more discharge orifice accordingly on last flap (3) and the lower valve base (2).