CN201420879Y

CN201420879Y - Three-way valve

Info

Publication number: CN201420879Y
Application number: CN2009200417847U
Authority: CN
Inventors: 张同伟; 汪涌; 孟海萍
Original assignee: Jiangsu Sunpower Solar Technology Co Ltd
Current assignee: Jiangsu Sunpower Solar Technology Co Ltd
Priority date: 2009-04-03
Filing date: 2009-04-03
Publication date: 2010-03-10
Anticipated expiration: 2019-04-03

Abstract

The utility model relates to a ball valve used in a pipeline, in particular to a three-way valve, which comprises a valve body, a ball core, a handle and a valve stem, wherein the ball core which is arranged in the valve body is connected with the valve stem; the handle is fixedly connected with the valve stem; the valve body is provided with an inlet hole, a horizontal outlet hole and a verticaloutlet hole; a valve cover is arranged and connected at the horizontal outlet hole of the valve body; a through hole which has the same axis with the horizontal outlet hole is arranged on the valve cover; the outer end of the through hole is provided with screw thread; the ball core is provided with a T-shaped through hole structure of which the inlet end, the horizontal outlet end and the vertical outlet end are corresponding to the valve body; the horizontal outlet end is fixedly provided with a check lever; a spring is sleeved on the check lever; and one end of the spring butts against theinner plane of the check lever, and the other end is fixedly connected with a plug. The three-way valve has simple structure, not only can meet the switching of the flow direction of the fluid medium,but also can effectively stop the backflow of the fluid medium owing to overhigh pressure, and further ensures the pipeline safety.

Description

A kind of three-way valve

Technical field

The utility model relates to the ball valve of using in the pipeline, especially a kind of triple valve.

Background technique

Tee ball valve is used to cut off, change the parts that flowing medium flows in pipe-line system, be widely used in industry and the civilian pipeline, because the relation of its internal structure in as installed is used, often can't satisfy the occasion that some have specific (special) requirements, as prevent to export the problem of medium back flow, if satisfy this requirement, then must in pipeline, increase safety check, this has not only increased cost, also increase simultaneously the rate of fault that leakage takes place in the pipeline, increased maintenance cost.

Summary of the invention

The purpose of this utility model is at the deficiencies in the prior art, can end the three-way valve that the outlet flowing medium refluxes and provide a kind of.

The technical scheme in the invention for solving the above technical problem is a kind of three-way valve, comprise valve body, ball core, handle and valve rod, be installed in ball core and valve rod load in the valve body, handle is fixedlyed connected with valve rod, valve body is provided with inlet hole, with the Horizontal Exit hole of the same axis of inlet hole and with the vertical exit orifice of inlet hole axes intersect, its innovative point is: the place, horizontal inlet hole of valve body is fitted with valve gap, and valve gap is provided with the through hole with the same axis in Horizontal Exit hole, and the outer end of through hole has screw thread; The ball core is provided with and the inlet hole of valve body, Horizontal Exit hole and the vertically corresponding entrance point of exit orifice, Horizontal Exit end, the vertical T shape through-hole structure of outlet end, and its Horizontal Exit end is fixed with check lever, be set with spring on the check lever, one end of spring is against the inner plane place of check lever, and the other end is fixedlyed connected with plug.

The outlet end of described its horizontal through hole of ball core is provided with step hole, and check lever is packed in the step hole place.

The vertical outlet port of described ball core and valve body is provided with sealing gasket.

Also be provided with sealing gasket between described ball core and the valve gap.

Be provided with seal ring between described valve rod and the valve body.

Three-way valve of the present utility model, after adopting said structure, the inlet hole place of valve body is provided with the valve gap of band screw, not only easy for installation, and can enlarge using scope, when pipeline is not a straight pipeline, needing under the situation of setting angle, we only need take off valve gap, change the valve gap that can adapt to setting angle band elbow, just can be convenient to use the utility model; After installing three-way valve, by handle with sleeve, can control the flow direction of fluid in pipeline in the use; Because the check lever that is equipped with successively in the horizontal through hole of ball core, spring and plug, when flowing medium produces owing to pressure is high when refluxing, can promote plug to the importer of valve to mobile, when moving to certain position, plug can block the entrance point of ball core, and simultaneously, the Horizontal Exit end of ball core is communicated with vertical outlet end, the flowing medium that makes its backflow is along vertically outlet discharge, pressure release, the safety that this has just guaranteed pipeline has on the one hand prevented the backflow of flowing medium again.And after the pressure of pipeline inner fluid medium was reduced to normal value, under the effect of spring, plug moved to the Horizontal Exit end of ball core, and recovered normal initial position, made the valve body import unimpeded, and pipeline recovers proper functioning.

Description of drawings

Fig. 1 is the structural representation of a kind of three-way valve of the utility model;

Fig. 2 is the B-B sectional view of Fig. 1;

Fig. 3 is the C-C sectional view of Fig. 2;

Fig. 4 is the A-A sectional view of Fig. 1;

Fig. 5 is the structural representation of ball core among Fig. 1;

Fig. 6 is the D-D sectional view of Fig. 5;

Fig. 7 is the structural representation of plug among Fig. 1;

Fig. 8 is the structural representation of check lever among Fig. 1;

Fig. 9 is the left view of Fig. 8.

Embodiment

The embodiment who provides below in conjunction with accompanying drawing describes in further detail the utility model.

Referring to Fig. 1,2,3,4,5,6,7,8,9, a kind of three-way valve, comprise valve body 1, ball core 4, handle 3, valve rod 9, be installed in ball core 4 and valve rod 9 loads in the valve body 1, handle 3 is fixedlyed connected with valve rod 9, valve body 1 be provided with inlet hole 1-1, with the Horizontal Exit hole 1-2 of the same axis of inlet hole 1-1 and with the vertical exit orifice 1-3 of inlet hole 1-1 axes intersect, its innovative point is: the inlet hole 1-1 place of valve body 1 is fitted with valve gap 2, and on the valve gap 2, be provided with through hole 2-1 with the same axis of Horizontal Exit hole 1-2; Ball core 4 is provided with and inlet hole 1-1, the Horizontal Exit hole 1-2 of valve body 1 and the vertically corresponding entrance point 4-1 of exit orifice 1-3, Horizontal Exit end 4-2 and vertically the T shape through-hole structure of outlet end 4-3, and its Horizontal Exit end 4-2 is fixed with check lever 7, be set with spring 6 on the check lever 7, one end of spring 6 is against the inner plane 7-1 place of check lever 7, and the other end is fixedlyed connected with plug 8.

The outlet end 4-2 of described ball core 4 its horizontal through hole is provided with step hole 4-4, and check lever 7 is packed in step hole 4-4 place.Check lever 7, spring 6 and plug 8 by load in the horizontal through hole of ball core 4 be the flowing medium loop problem in the pilot line effectively, simultaneously can release and guarantee the safety of pipeline.

Referring to Fig. 2,3, in order to guarantee the pressure of pipe-line system, reduce the leakage of three-way valve, described ball core 4 is provided with sealing gasket 11 with the vertical outlet 1-3 place of valve body 1.Also be provided with sealing gasket 5 between described ball core 4 and the valve gap 2.Be provided with seal ring 10 between described valve rod 9 and the valve body 1.

The utility model is because the inlet hole place of valve body is provided with the valve gap of band screw, not only easy for installation, and can enlarge using scope, when pipeline is not a straight pipeline, needing under the situation of setting angle, we only need take off valve gap, change the valve gap that can adapt to setting angle band elbow, just can easily the utility model be installed; The utility model in use, inlet hole 1-1 with valve body 1, vertically the through hole 2-1 of exit orifice 1-3 and valve gap 2 links to each other with corresponding import and export of pipeline on request, can use safely, rotatable handle 3 drives valve rod 9 and rotates, the threeway direction of may command ball core 4 reaches fluid direction circulation on demand, when fluid medium pressure in the pipeline raises above inlet pressure, the plug that fluid will promote in the ball core through hole moves to the entrance point direction, and plug and ball core entrance point offseted, promptly block fluid inlet, the fluid of backflow can't be passed through, and directly discharge from vertical exit orifice 1-3, and release, after the loine pressure mitigation is stable, fluid reduces the pressure of plug, then plug 8 resets under the effect of the spring on the check lever 76, and it is normally unimpeded that pipeline recovers, because the vertical outlet 1-3 place of described ball core 4 and valve body 1 is provided with sealing gasket 11.Also be provided with sealing gasket 5 between described ball core 4 and the valve gap 2.Be provided with seal ring 10 between described valve rod 9 and the valve body 1, further guarantee the sealing of three-way valve, three-way valve of the present utility model is simple in structure, can satisfy and change the switching that flowing medium flows to, the backflow phenomenon that can stop flowing medium to produce owing to overpressure has effectively again further guaranteed the safety of pipeline.

Claims

1, a kind of three-way valve, comprise valve body (1), ball core (4), handle (3) and valve rod (9), be installed in ball core (4) and valve rod (9) load in the valve body (1), handle (3) is fixedlyed connected with valve rod (9), valve body (1) be provided with inlet hole (1-1), with the Horizontal Exit hole (1-2) of the same axis of inlet hole (1-1) and with the vertical exit orifice (1-3) of inlet hole (1-1) axes intersect, it is characterized in that:

The inlet hole (1-1) of a, valve body (1) locates to be fitted with valve gap (2), on the valve gap (2), be provided with the through hole (2-1) with the same axis in Horizontal Exit hole (1-2), and the outer end of through hole (2-1) has screw thread;

B, ball core (4) are provided with and the inlet hole (1-1) of valve body (1), Horizontal Exit hole (1-2) and the vertical T shape through-hole structure of the corresponding entrance point of exit orifice (1-3) (4-1), Horizontal Exit end (4-2) and vertical outlet end (4-3), and its Horizontal Exit end (4-2) is fixed with check lever (7), be set with spring (6) on the check lever (7), one end of spring (6) is against the inner plane (7-1) of check lever (7) and locates, and the other end is fixedlyed connected with plug (8).

2, three-way valve according to claim 1 is characterized in that: the outlet end (4-2) of its horizontal through hole of described ball core (4) is provided with step hole (4-4), and check lever (7) is packed in step hole (4-4) and locates.

3, three-way valve according to claim 1 is characterized in that: described ball core (4) locates to be provided with sealing gasket (11) with the vertical outlet (1-3) of valve body (1).

4, three-way valve according to claim 1 is characterized in that: also be provided with sealing gasket (5) between described ball core (4) and the valve gap (2).

5, three-way valve according to claim 1 is characterized in that: be provided with seal ring (10) between described valve rod (9) and the valve body (1).