CN1154797C - Valve with conic core - Google Patents

Abstract

The present invention relates to a value making use of the match of a core section which is a cone and an inner conical surface to control liquid in a pipeline. The exterior shape of the present invention is identical to that of a general valve; the upper end of the cone is provided with a control rod; when a through hole at the middle part of the cone is communicated with through holes of the pipeline at both ends of the inner conical surface, the valve is opened; when the through hole at the middle part of the cone is intersected with the through holes of the pipeline at both ends of the inner conical surface at an angle of 90 DEG, the valve is closed. The seal of a control section or an operation section also uses the match of the cone and the conical surface; the opening and closing process is the wearing-in process of the cone and the conical surface; therefore, the quality and the service life of the valve can be improved; the valve with the structure can be made into a metal or a full plastic three-way valve, an angle valve and a water tap.

Description

Valve with conic core

The present invention relates to the valve of trickle in the valve of liquid in a kind of controlling plumbing fixtures or the controlling plumbing fixtures, the sealing part that especially can improve the number of times of liquid communication and disconnection in the keyholed back plate road and control position not leakiness is oozed.

At present, the structure of known gate valve, stop valve, ball valve.Gate valve is made up of flashboard, housing and flashboard slot, flashboard lifting screw, screw rod sealing mat and sealing gasket locking screw nurse, handwheel etc.When people have grown switching time, seal mat and be easy to wearing and tearing and spill controlled liquid.Flashboard has combined between the higher and lower levels often, has the mill oblique presentation to give birth to, thereby is not closed completely, and makes quality be not easy to guarantee very much.The structure of stop valve is made up of housing, lid hole seat, valve gap, valve gap screw rod, valve gap screw rod sealing gasket, sealing gasket locking screw nurse, handwheel etc., the people switch often, the valve gap screw rod has a spot wobble, valve gap just is difficult for aiming at the valve cover hole seat, will press to lead partially to make and be not closed completely, and also wearing and tearing easily of sealing gasket, quality is difficult for guaranteeing.The structure of ball lock is an inner ball surface with holes in housing and the housing, and axle on spheroid with holes and the spheroid with holes is a handle on the axle.When work often, understand after spheroid and the inner ball surface wearing and tearing gapped, thereby be not closed completely or out of hand, can not ensure the quality of products.

The purpose of this invention is to provide the valve that a kind of core is cone and cone match structure, it can not only increase many times operating life, and the sealing position is difficult for seepage, and improves the quality of valve.

The object of the present invention is achieved like this: inner conical surface is at valve housing middle part, and housing two ends pipeline through hole and inner conical surface center line directly are greater than the internal diameter of pipeline through hole in the inner conical surface.The height of inner conical surface is greater than the internal diameter of pipeline through hole, cone top is splined shaft, the middle part is the cone through hole, overlapping the outside thread body on the splined shaft, outside thread body center is an internal spline, splined shaft top is the cylindrical jump ring of fixedly outside thread body, and the splined shaft center is a square hole, and the square bar in the square hole is the operating stem of control valve.The height of cone is equal to or greater than the height of inner conical surface, and the middle footpath of inner conical surface is greater than or equals 1.55 times pipeline through hole internal diameter.Operating stem is used for controlling cone rotation, and cone is by the screw thread and the internal thread effect of valve housing of outside thread body, and rotatablely moves up and down, cone and inner conical surface is rotated combine, and cone equates with the inner conical surface tapering, and tapering greater than 15 ° of angles less than 90 ° of angles.When cone was rotated, liquid passed through when the cone through hole at cone middle part and pipeline through hole UNICOM, and cone middle part through hole internal diameter is less than or equal to pipeline through hole internal diameter.When cone through hole and pipeline through hole angle were 90 ° of angles, liquid was disconnected, and the switch number of times is many more, and cone and inner conical surface rotation connecting times are many more, and it is many more that cone and inner conical surface grind number of times, thereby operating life is also just long more.The external splines on the internal spline of outside thread body and cone top can be adjusted and close or during Open valve, the cone through hole at cone middle part and the best angle of pipeline through hole, adjust angle especially for the logical journey of the grinding of cone and inner conical surface with after closing, valve operation bar middle part is a bocca, match with the inner conical surface in valve top cover operating stem hole, on top cover top spring base hole is arranged, spring in the spring base hole withstands the lateral pin on operating stem top, sphere on the bocca of operating stem is combined with the sphere in valve top cover bar hole, thereby reach the process of spin finishing, make to seal between operating stem and the top cover tightly, not leakiness, ooze.For normal pressure valve and Low pressure valve, its internal structure can be simply.Can not want the outside thread body, the splined shaft on cone top, cylindrical jump ring.Two kinds of schemes are arranged under low pressure and normal pressure, first kind of valve, in housing inner conical surface and two ends pipeline through hole UNICOM, the footpath is greater than or equals the internal diameter of 1.55 times pipeline through hole in the inner conical surface, the height of inner conical surface is greater than the internal diameter of pipeline through hole, the cone middle part is the cone through hole, the big nose circle of cone top is circular shaft, the circular shaft top is the four directions, and the four directions is used for adorning handle, and the circular shaft outer cover spring, by the valve cover pressure spring, make cone can tightly press inner conical surface, inner conical surface equates that with the tapering of cone the height of cone is more than or equal to the height of inner conical surface.When rotatory handling, in the effect lower cone rotation of circular shaft, when the cone through hole at cone middle part communicated with the pipeline through hole, liquid can pass through in the pipeline, and the cone through hole internal diameter at cone middle part is less than or equal to pipeline through hole internal diameter.When the through hole of cone and pipeline through hole intersected 90 ° of angles, liquid was disconnected, and when switch repeated, cone was ground with inner conical surface and cooperated, and usefulness seals sternly more more, no matter be when opening, or when closing, the outside is to be difficult for seepage liquid.Second kind of scheme, in housing, the big nose circle of inner conical surface is a through hole, this through hole can be an auxiliary hole, also can be the pipeline through hole of triple valve.When this hole is auxiliary hole, with a benefit core or cover plate this hole is sealed, this is general valve, its working procedure is identical with first kind of scheme, when being triple valve, two ends pipeline through hole and inner conical surface center line intersect, be 90 ° of angles of two ends pipeline through hole and inner conical surface axes intersect, two ends pipeline through hole is same axis, the interior circular diameter at inner conical surface middle part is greater than or equals 1.55 times pipeline through hole internal diameter, and managing all, the internal diameter in hole equates with the big nose circle internal diameter of inner conical surface, the inner conical surface height is greater than pipeline through hole internal diameter, the other end pipeline through hole connects with the big nose circle of inner conical surface, and the big nose circle internal diameter of inner conical surface is less than or equal to the other end pipeline through hole, i.e. pipeline through hole center line and inner conical surface central lines.The little nose circle of inner conical surface is valve operation bar hole, cone roundlet end top is that round bar is an operating stem, the round bar top is the four directions of dress handle, there is individual pin-and-hole at the round bar middle part, round bar is with spring, pressure spring acts on the spring base hole of valve housing, and the other end acts on the pin at round bar middle part, and cone is tightly combined with inner conical surface.Inner conical surface equates with the tapering of cone, and bores greater than 15 ° of angles less than 180 ° of angles.There is a horizontal cone through hole at the cone middle part, and laterally the cone through hole also can be half through hole, at the big nose circle axial direction of cone a hole is arranged also, and it communicates with cross through hole, axial bore and pipeline through hole UNICOM.The big nose circle of cone is the feed liquor body opening, and when the rotation cone made horizontal cone through hole communicate with the pipeline through hole, liquid flow through through horizontal cone through hole by the cone axial bore.Can go out by orifice flow from the two ends pipeline.When horizontal cone through hole was half through hole, liquid can only flow out from a pipeline through hole of an end.When horizontal cone when closing, transverse holes and horizontal pipeline through hole are at an angle of 90.When becoming the angle valve door, the horizontal pipeline through hole needs only an of end, and this working procedure is identical with the triple valve working procedure, and difference is to have only the work of a horizontal pipeline through hole.When closing or open, the big nose circle of cone is under spring pressure and fluid pressure effect, cone and inner conical surface closely cooperate, under spring pressure and the fluid pressure effect, cone and inner conical surface closely cooperate, and number of revolutions is many more, and it is many more to grind number of times, sealing controlling rod position, though when opening or closing easy to leak not.

Owing to adopt such scheme, can improve the control number of times of controlling liquid in the using process of valve, it is non-leakage also can to improve the controlling rod place, can use plastics-production for the valve that is used for normal pressure or low pressure.It is simple in structure.

Below in conjunction with drawings and Examples one invention is further specified:

Fig. 1 is first kind of sectional drawing of the present invention

Fig. 2 is second kind of sectional view of the present invention

Fig. 3 is the third sectional view of the present invention

Among the figure 1, housing 2, cone 3, inner conical surface 4, outside thread body 5, splined shaft 6, pipeline through hole 7, cone through hole 8, top cover 9, cylindrical card bullet 10, plain cushion 11, spring 12, pin 13, handle 14, controlling rod or operating stem 16, cone axial bore 17, interior buckshot spring abutment hole 18, spline 19, screw thread 20, bocca 21, little inner conical surface

In Fig. 1, rotatory handling (13) power rotates cone (2) by the splined shaft (5) of controlling rod (14), simultaneously, make the effect lifting of the screw thread (19) on screw thread (19) and the housing (1) on the outside thread body (4) by the spline (18) on the splined shaft (5), cylindrical jump ring (9) is fixed on the splined shaft (5) outside thread body (4).Power makes cone (2) rotation and lifting, and when the cone through hole (7) at cone (2) middle part and pipeline through hole (6) when communicating, liquid can flow through.The center line that arrives cone through hole (7) and pipeline through hole (6) when cone (2) intersects 90 °, and liquid is disconnected.Cone (2) equates that with the tapering of inner conical surface (3) height of cone (2) is greater than or equals the height of inner conical surface (3).It must be sealing fully after grinding.The middle footpath of inner conical surface (3) is greater than or equals 1.55 times of pipeline through hole (6) internal diameter, when the repeat switch valve, this process is exactly the process of grinding, the internal spline (18) of outside thread body (4) can be adjusted when closing and opening with the spline (18) of splined shaft (5), the best angle of cone through hole (7) and pipeline through hole (6), controlling rod (14) middle part is bocca (20), bocca (20) matches with the little inner conical surface (21) and operating stem (14) the seat hole of valve top cover (8), on top cover (8) top spring base hole (10) is arranged, the spring (11) that is compressed in spring base hole (17) withstands the pin (12) on plain cushion (10) and operating stem (14) top, the little inner conical surface (21) of bocca (20) and valve top cover (8) on the operating stem (14) is closely cooperated, thereby reach the process of spin finishing.Make operating stem (14) tight, thereby make not easy to leak of operation sealing part with top cover (8) sealing.In Fig. 2, top cover (8) is pushed down the spring (11) of compression, spring (11) acts on cone (2), cone (2) is combined closely with inner conical surface (3), the footpath is more than or equal to the internal diameter of 1.55 times of pipeline through holes (6) in the inner conical surface (3), and the height of inner conical surface is greater than the internal diameter of pipeline through hole (6), and the height of cone is not less than the height of inner conical surface (3), cone (2) equates with the tapering of inner conical surface (3), is to grind combination.When rotatory handling, rotate at the effect lower cone (2) of circular shaft (15), the cone through hole (7) at cone (2) middle part and pipeline through hole (6) are when communicating, and liquid passes through in the pipeline, when the logical son (7) of the cone of cone (2) intersected 90 ° with pipeline through hole (7), liquid was disconnected.When switch was reused, cone (2) and inner conical surface (3) constantly ground, and be tight more with sealing more, no matter be when opening or closing, branch is difficult for seepage liquid, and is tight more with sealing part more.In Fig. 3, the interior circular diameter at inner conical surface middle part is greater than or equals the internal diameter of 1.55 times two ends pipeline through holes (6), inner conical surface (3) highly is greater than pipeline through hole (6) internal diameter, the other end pipeline through hole (6) connects with the big nose circle of inner conical surface (3), the little nose circle of inner conical surface (3) is valve controling rod (14) hole, cone (2) roundlet end top is that round bar is controlling rod (14), pressure spring (11) acts on the spring base hole (17) of valve housing (1), the other end is that plain cushion (10) acts on the pin (12) at controlling rod middle part, cone (2) middle part is horizontal cone through hole (7), and at the axially big nose circle of cone (2) cone axial bore (a 16) cone through hole (7) that communicates with cone through hole (6) being arranged also also can be half through hole.The big nose circle of cone is an inlet opening.Liquid flows through two ends pipeline through holes (6) through cone axial bore (16) through horizontal cone through hole (7) when rotatory handling, when cone through hole (7) intersects 90 ° of angles with horizontal pipeline through hole (6), and valve closing.When horizontal pipeline through hole (6) has only one, just become the angle valve door, its working procedure is identical, has only a horizontal pipeline through hole (6) to flow out or disconnection.Cone (2) is under the pressure and fluid pressure effect of spring bullet (11), and cone (2) closely cooperates with inner conical surface (3), and number of revolutions is many more, grind manyly more, it is good more to seal, no matter be when opening or closing, the outside is easy to leak not, and it is tight to close the back sealing, long working life.

Claims (3)

1, a kind of valve, inner conical surface is at the housing middle part in housing, and two ends are pipeline through holes, the big nose circle of inner conical surface top is screw thread, and threaded tip is the valve top cover, and cone matches with inner conical surface, the cone middle part is the cone through hole, the big nose circle of cone top is splined shaft, and splined shaft is with the outside thread body, and outside thread body center is an internal spline, cylindrical folder bullet is on the spline top, the splined shaft center is a square hole, is the operating stem of control valve in the square hole, and the controlling rod middle part is a bocca.Bocca and valve top cover cone match, the top cover upper end is spring and spring base hole, there is a pin on spring top in the pin-and-hole of controlling rod top.

2, valve according to claim 1, it is characterized in that: the cooperating of the splined shaft on outside thread body and cone top, can adjust the angle when opening and closing, the best angle of cone through hole relative duct size through hole, the height of cone is greater than or equals the height of inner conical surface, two ends pipeline through hole is same axis, the axis of pipeline through hole becomes an angle of 90 degrees with the inner conical surface axes intersect, the height of inner conical surface is greater than the internal diameter of pipeline through hole, the cone through hole and the cone axis at cone middle part intersect an angle of 90 degrees, and cone equates with the tapering of inner conical surface.The middle footpath of inner conical surface is greater than or equals 1.55 times pipeline through hole internal diameter.

3, valve according to claim 1 is characterized in that: auxiliary hole is after cone is installed, and tightens with bar and seals.