CN203335930U

CN203335930U - Double-path one-way check valve

Info

Publication number: CN203335930U
Application number: CN2013203680328U
Authority: CN
Inventors: 池学聪; 姜美玲; 王兴荣
Original assignee: Shanghai Panda Machinery Group Co Ltd
Current assignee: Shanghai Panda Machinery Group Co Ltd
Priority date: 2013-06-26
Filing date: 2013-06-26
Publication date: 2013-12-11
Anticipated expiration: 2023-06-26

Abstract

The utility model provides a control valve used for fluid transferring and capable of achieving double-path water supplying or double-path alternate water supplying. A double-path one-way check valve comprises a valve body, a valve element shaft, a valve element, a valve element support, water inlet pipe installation opening rings, water inlets, a control cavity and a water outlet. In a pipeline system formed by two sets of conveying equipment, only installation of one set of the double-path one-way check valve is needed; when pressure water enters the two water inlets, the valve element moves to the middle, and the water can enter both two paths; when the pressure water enters the two paths alternately, the valve element moves to the end where the pressure water does not flow into. The valve is mainly used for the situation that the two sets of the conveying equipment supply the water to the free water outlet end, enables a water supply system to be simplified and is easy to install and use, the rotation control angle of a switch of the valve can be freely selected or adjusted on site according to installation operating conditions, and thus the check valve is especially suitable for sewage discharge occasions.

Description

The two-way one way stop peturn valve

Technical field

The utility model relates to a kind of two-way one way stop peturn valve, be applicable to the pipe-line system formed by two cover conveying equipments, in water supply pumping plant or sewage lifter, the general two pumps of installing, the using and the reserved, in particular cases two pumps use simultaneously, only need to install a two-way one way stop peturn valve in this system and just can realize that two-way supplies water or the two-way alternative water-supply is controlled.

Background technique

At present, in the pipe-line system that two cover conveying equipments supply water to the free export end, two one-way valves and a three-way pipe are installed, or the two-way safety check is installed.Two one-way valves and a three-way pipe scheme, make in pipeline part more, and installation cost is higher, install take up room larger; General two-way check valve structure complexity, be equipped with the direction requirement, greatly dwindled using scope.

The purpose of this utility model, be to provide and a kind ofly can have overcome above-mentioned shortcoming, can be used for specifying operating mode, simple in structure, easy to manufacture, and can carry out according to installation direction and applying working condition the two-way one way stop peturn valve of the import and export angle of valve design.

Summary of the invention

The technical solution of the utility model is: the two-way one way stop peturn valve consists of valve body, poppet shaft, spool, spool support, intake pipe installation choma, water intake, control chamber, water outlet.Described spool is put into control chamber by arbitrary water intake, described poppet shaft is through spool and spool support, rubber sheet gasket by nut is fixed on the spool support, spool can freely rotate around poppet shaft under the effect of press water, described intake pipe is installed choma intake pipe and valve body is linked together, after intake pipe end face after installation and Spool rotating several angle, closely be adjacent to, it is characterized in that described valve body is three-way pipe, comprise the first water intake and the second water intake and the free water outlet that connect two pumps; For needing the occasion that conveyance capacity is larger, this valve provides into water pipe end accessory, has increased the angle between water intake and water outlet and has increased the rotatable angle of spool, has increased the conveyance capacity of two-way one way stop peturn valve.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further detailed.

Fig. 1 is the scheme of installation of two-way one way stop peturn valve in the double pump drainage system.

Fig. 2 is the structural representation of two-way one way stop peturn valve.

Fig. 3 is that the water inlet pipe end accessory that the adjustment angle of swing is used coordinates schematic diagram with spool.

Fig. 4 is the view of spool perpendicular to water outlet direction in Fig. 2.

In Fig. 2, valve body (2) has two water intakes (8), (9), a free water outlet (11), any one from water intake (8), (9) of spool (4) put into control chamber (10), by poppet shaft (3), with spool support (5), connect, intake pipe by intake pipe choma (6) is installed, (7) connect with valve body.

It in Fig. 3, is the special water inlet pipe end accessory (12) used for special occasions, water inlet pipe end accessory can be installed choma with intake pipe and be fabricated to one, and be linked together by flange or screw thread and intake pipe, use this accessory so that the rotatable angle of spool increases, to increase the conveyance capacity of valve.

Fig. 4 is the sectional shape of spool (4), and spool (4) is pulled with the flexible sealing material rubber plate and formed by the rigid backbone valve; Spool (4) shape also is comprised of two-part, a part with intake pipe section close contact radius be slightly larger than the intake pipe radius circular plate and with the joining projected square part of poppet shaft (3) spool support (5).

Embodiment

Fig. 1 is the installation diagram of existing two-way one way stop peturn valve in pipe-line system, and as seen from the figure, the water outlet of valve is fully free, therefore is recommended in the occasion with free waterexit end and uses, otherwise need in export pipeline, add loaded check valve.

In Fig. 2, spool (4) connects with spool support (5) by poppet shaft (3), spool (4) can rotate around poppet shaft under the pressure-acting of medium, when water intake (8) has press water to enter, spool position from figure is counterclockwise, and rear and water intake (9) close contact are spent in motion 30, the anti-sealing of water intake (9) sealing is flowed into to another inlet pipeline from water intake (9), complete the one-way non-return function.

In Fig. 2, intake pipe and intake pipe are installed choma (6), (7) are welded as a whole, welding position definite need to guarantee installation back valve cores (4) counterclockwise or after 30 degree that turn clockwise can with intake pipe end face close contact.

Claims

1. a two-way one way stop peturn valve, by valve body (2), poppet shaft (3), spool (4), spool support (5), intake pipe is installed choma (6), (7), water intake (8), (9), control chamber (10), water outlet (11) forms; Described valve body (2) is three-way pipe, comprises the first water intake (8), the second water intake (9) and a water outlet (11), it is characterized in that described spool (4) is to rotate the sheet spool that elastomer diaphragm is all posted on two sides around poppet shaft.

2. two-way one way stop peturn valve as claimed in claim 1, it is characterized in that before the intake pipe located in water intake (8), (9) needs stretching in control chamber (10) to spool (4) rotation and its position that can be adjacent to, intake pipe by intake pipe choma (6) is installed, (7) connect with valve body.

3. two-way one way stop peturn valve as claimed in claim 2, it is characterized in that the angle of described spool (4) rotation and the angle between water intake (8), (9) and water outlet (11) differ 90 degree, the rotatable angle of spool (4) also can be adjusted by being installed into water pipe end accessory (12).