CN201166155Y

CN201166155Y - Duplex conical change valve

Info

Publication number: CN201166155Y
Application number: CNU2008200321500U
Authority: CN
Inventors: 顾斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-12
Filing date: 2008-03-12
Publication date: 2008-12-17
Anticipated expiration: 2018-03-12

Abstract

A duplex cone reversing valve is composed of a valve body, a valve core, a valve cover, a valve rod, a valve core lifter, a reversing handle, a sealing ring, a screw and a nut, wherein the valve core is provided in the valve body, the valve cover covers the valve body, the valve rod penetrated through the valve cover, the valve core lifter and the reversing handle, whose lower end is connected with the valve core via the screw and the upper end is connected with the nut, the valve core lifter is connected with the valve cover via screws, two sealing rings are respectively provided between the cylinder joint faces of the valve body and the valve cover and between the lower end face of the valve cover and the upper end face of the valve body. The joint faces of the valve body and the valve core are conical, the middle upper part and the middle lower part of the valve body are respectively provided with an inlet and two outlets, the valve core is provided with an inlet and an outlet corresponding to the valve body, one of the two outlets of the valve body is sealed by the valve core. Compared with the prior ball valve reversing in liquid pipelines, the duplex cone reversing valve has the advantages of small rotation torque in reversing and simple operation, and the utility model can reduce labor strength of users.

Description

Duplex taper selector valve

Affiliated technical field

This practical neofield relates to needs to change the valve that flow direction is used in a kind of flow of fluid pipeline.

Background technique

The valve that used needing in the flow of fluid pipeline at present changes direction all is to use ball valve to finish commutation in the flow of fluid pipeline.When its deficiency was to use, the moment of torsion that the opening and closing of ball valve need was bigger, therefore made operator's labor intensity bigger, operated very inconvenient.

The model utility content:

The purpose of this utility model is to overcome that to need to change flow direction in the present flow of fluid pipeline all be the deficiency that adopts ball valve, provide a kind of driving torque little, reduce operator's labor intensity, easy to operate duplex taper selector valve.

The purpose of this utility model is achieved through the following technical solutions.Duplex taper selector valve by valve body, spool, valve gap, valve rod, spool lifter, reversing handle, seal ring, screw and nut form, spool is contained in the valve body, valve gap covers on valve body, valve rod passes valve gap, spool lifter and reversing handle, its lower end links with screw and spool, upper end and nut link (spool lifter and reversing handle being pressed on the valve rod) with nut, spool lifter and valve cover chamber link with screw thread, between the cylindrical junction plane of valve gap and valve rod and between the upper-end surface of the lower end surface of valve gap and valve body seal ring are housed respectively.

The position, middle and upper part of valve body and position, middle and lower part are respectively equipped with an import and two outlets, are respectively equipped with an import and an outlet on the corresponding position of spool and valve body, have one to be sealed by spool in two outlets on the valve body.

Spool is an external cone, and the corresponding internal cones of external cone of a size and spool is arranged on the valve body, combines closely between external cone in this.Between an import above the spool, an outlet and a following import, outlet is not connected.

Need to change flow direction in the utility model and the present flow of fluid pipeline, all be to use ball valve to commutate and compare, adopt the rotational valve core lifter, make between two cones of combining closely between spool and valve body and throw off mutually, rotate reversing handle then, realize the change that flows to.Have in the aforesaid operations because of disengagement between two cones makes the moment of torsion of rotation very little, can reduce operator's labor intensity greatly, and easy to operate advantage.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model, and Fig. 2 is the A-A sectional view of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.In the accompanying drawing, 1---nut; 2---reversing handle; 3---the spool lifter; 4---seal ring; 5---valve rod; 6---stud bolt; 7---valve gap; 8---screw; 9---valve body; 10---spool; B---inlet hole; C---exit orifice.In the time of will commutating in the use, rotate counterclockwise spool lifter 3 earlier, because of being scyewed joint between spool lifter 3 and the valve gap, reversing handle 2, with nut 1 its three is pressed together between spool lifter 3 and the

valve rod

5, and 10 of valve rod 5 and spools link with screw, so rotate counterclockwise spool lifter 3, spool 10 is up promoted and the cone of combining closely between spool 10 and the valve body 9 is thrown off, clockwise rotate reversing handle 2 then, make communicate between the outlet C on outlet C and the valve body 9 on the spool 10 become disengagement (the outlet C on this valve body 9 become seal) by spool 10, communicate with another outlet C on the valve body 9, clockwise rotate spool lifter 3 again, internal cones on external cone on the spool 10 and the valve body 9 is depressed into combines closely, can change the direction of flow of fluid, next time, reversing handle 2 should rotate counterclockwise when commutating, and other operating procedure is identical.Little, the easy to operate advantage of moment of rotation when having commutation.

The utility model can extensive use in liquid filtering, two outlets on the valve body 9 link with filter respectively, one is used another standby in two filters, after the filter element that uses is blocked, use standby filter instead, the used filter core that is blocked pulled down to refill after the cleaning in filter, become standbyly, so go round and begin again and move in circles, also can be used on the occasion that other flow of fluid pipeline need change flow direction certainly.

Claims

1, a kind of duplex taper selector valve, it is characterized in that forming by valve body, spool, valve gap, valve rod, spool lifter, reversing handle, seal ring, screw and nut, spool is contained in the valve body, valve gap covers on valve body, valve rod passes valve gap, spool lifter and reversing handle, its lower end links with screw and spool, upper end and nut link, spool lifter and valve cover chamber link with screw thread, between the cylindrical junction plane of valve rod and valve gap and between the upper-end surface of the lower end surface of valve gap and valve body seal ring are housed respectively.

2, by the described duplex taper of claim 1 selector valve, the position, middle and upper part and the position, middle and lower part that it is characterized in that valve body are respectively equipped with an import and two outlets, be respectively equipped with an import and an outlet on the corresponding position of spool and valve body, have one to be sealed in two outlets on the valve body by spool.

3, by the described duplex taper of claim 1 selector valve, it is characterized in that spool is an external cone, the corresponding internal cones of external cone of a size and spool is arranged on the valve body, combine closely between external cone in this.

4,, it is characterized in that between an import above the spool, outlet and a following import, outlet be not connected by the described duplex taper selector valve of claim 1.