CN2122287U

CN2122287U - Ball valve without handle

Info

Publication number: CN2122287U
Application number: CN 92209962
Authority: CN
Inventors: 焦发兆
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-19
Filing date: 1992-05-19
Publication date: 1992-11-18

Abstract

A ball valve without handle is composed of valve body, valve cover, valve core, valve handle and sealing ring. The inner wall of the valve body is provided with a round step for placing a sealing ring along the round hole, and the diameter of the round step is matched with the outer diameter of the valve handle. The utility model discloses do not have valve rod, handle etc. that stretch out the valve body, simple structure can not take place to bump the accident of breaking or bending the valve rod, has improved effective latus rectum moreover greatly, more is fit for the application scenario that has strict requirements to space and safety.

Description

Ball valve without handle

The utility model relates to a kind of pipeline fittings--the valve that fluid flows, specifically a kind of no handle ball valve controlled.

Existing various valve, its valve rod generally are to stretch out outside the valve body, and rod end has handle or handwheel, and valve rod is realized sealing by sealing material such as asbestos or rubber pad etc. that gland compresses in the valve body recess when passing valve body.These valves easily leak.And outer valve rod and the handwheel of valve body, make whole volume increase, relatively effectively latus rectum diminishes, and this has just limited their using scope.Such as, to having only certain space, and the occasion of the valve of the big latus rectum of requirement use is just very difficult, the valve of inside nominal diameter Dg40mm for example can only be installed in the gas-tight silo of sealed type drilling tapping machine, this is concerning main pipes such as tap water, oil, coal gas, the Dg40mm valve seems too little, but bigger valve seal capacity is not received.For another example, must not allow the crucial or dangerous occasion that the people at will pulls, have to unload handwheel or handle when using above-mentioned valve, perhaps add a cover protective housing with lock, to ensure safety to some.

The purpose of this utility model is to provide that a kind of volume is little, latus rectum is big, sealability is high is not only applicable to general occasion, be particularly useful for space and safety are had the valve of the specific occasion of strict demand.

The utility model is made of valve body, valve gap, spool, valve handle and seal ring, it is characterized in that valve handle is round table-like, and its total length adapts with the wall thickness of valve body.The rectangle step that protrusion is arranged on the bigger one section cylinder end face of this round platform diameter, this step embed in the rectangular recess of spool, realize the connection of valve handle with spool; One section less cylinder of this round platform diameter is positioned at the circular hole on the valve body, and its end face is concordant substantially with valve outer surface, also has the groove or the boss of given shape on the end face, be used for mating special tool, so that the turn valve handle drives spool, substitute known handwheel or handle.Why wanting given shape, is the needs that open and close spool, can be other shapes except that circular such as rectangular substantially, triangle, quadrilateral, if circle, its circumference must have corner angle or projection.If given shape is a groove type on the end face, then special tool should be convex table type mutually, if given shape is a convex table type on the end face, then special tool should be groove type mutually, mates mutually, as key unlocking, plug rotate to an angle (being generally 90 degree), just realize opening or closing.Should to indicate spool be to open or closing state to its orientation of the groove of given shape or boss on the end face, perhaps separate marking mark, the state that opens and closes of indication spool.

The utility model valve handle is to realize like this with the sealing of valve body.The circular hole that the supplying apparatus valve handle is arranged on the valve body, around this circular hole, on valve interior wall, process a step cutting pattern that caves in, on this step, put seal washers such as rubber or asbestos, the diameter of step matches with the external diameter of one section bigger cylinder of valve handle diameter, and seal washer is realized sealing for this cylinder compresses.Concerning the utility model, valve handle not only has the effect that opens and closes spool, also has the effect of sealing concurrently.

The utility model does not have valve rod, handwheel or handle, the gland etc. that stretch out outside the valve body, simplifies the structure, and avoids the accident of bumping disconnected or bending valve rod that takes place to run into usually.The more important thing is and improved effective drift diameter greatly.Such as, the ball valve of an existing Dg40mm, interior,, under the condition of equal volume, can design the ball valve of Dg50mm even 65mm if design by the utility model together with the shared volume of valve rod and handle.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the valve handle structural representation.

Fig. 3 is the valve body structure schematic representation.

Fig. 4 is the valve core structure schematic representation.

Fig. 5 is the valve cover structure schematic representation.

1, valve body, 2, valve gap, 3, spool, 4, valve handle, the truncated conical shape that constitutes by two short cylindricals, 5, seal ring, 6, the rectangular recess on the

spool

3,7, the groove of given shape on the valve handle 4, the middle part is a rectangle, two ends are semicircle, 8, rectangular boss on the valve handle 4, be used for embedding in the rectangular recess 6, to connect the circular hole on

spool

3,9, the valve body 1, be used for

device valve handle

4,10, the step cutting pattern that caves on valve body 1 inwall is used for putting seal ring 5.

In conjunction with the accompanying drawings, embodiment of the present utility model is described below:

Process valve body 1, valve gap 2, spool 3 and valve handle 4 respectively with technique known and material.

Valve handle 4 is truncated conical shape, and processing rectangular boss 8 is used for connecting spool 3 on the bigger one section cylinder end face of diameter; Processing the middle part on the less one section cylinder end face of diameter is semicircular groove 7 for rectangle, two ends, uses for special tool.Groove 7 is consistent with boss 8 orientations, is used to refer to the state that opens and closes of spool 3.

Processing circular hole 9 is used for putting one section less cylinder of valve handle 4 diameters on valve body 1; Around the inwall upper edge of valve body 1 circular hole 9, process the step cutting pattern 10 of a depression, put seal ring 5 on it.One section cylinder that valve handle 4 diameters are bigger can embed in the step cutting pattern 10 to compress seal ring 5.

End face upper edge through-bore axis direction at spool 3 is processed a rectangular recess 6, and groove 6 matches with rectangular boss 8.

Assembly process is as follows: put O type rubber seal 5 in step cutting pattern 10 well; Valve handle 4 is passed circular hole 9 from inside to outside, and compress seal ring 5; Rotation valve handle 4 makes the axial direction unanimity of rectangular boss 8 with valve body 1, puts into spool 3 from valve body 1 upper end then, makes rectangular recess 6 block rectangular boss 8, screws valve gap 2 at last, and at this moment the ball valve that device is good is opening state.Have the special tool of the boss that is complementary with groove 7 to insert in the groove 7 with an end, revolve and turn 90 degrees, valve just is closed.

Claims

1, a kind of no handle ball valve is made of valve body, valve gap, spool, valve handle and seal washer, it is characterized in that:

(1), valve handle is positioned at the circular hole on the valve body, is truncated conical shape, on its end face that connects with spool rectangular boss arranged, and the groove or the boss of other given shapes such as rectangular substantially, triangle, quadrilateral arranged on the other end with the special tool coupling;

(2) on the inwall of valve body, be processed with the step cutting pattern of placing the depression that seal washer uses around the circular hole of device valve handle, its diameter matches with the external diameter of one section bigger cylinder of diameter on the valve handle.

2, a kind of no handle ball valve according to claim 1 is characterized in that: being processed with the middle part on the end face with the special tool coupling on the valve handle is semicircular groove for rectangle, two ends.