CN202946731U - Ball valve with one-way non-return function - Google Patents

Abstract

The utility model provides a ball valve with a one-way non-return function. The ball valve comprises a valve body (1), a ball valve core (2), a non-return valve core (3) and a spring (31). According to the utility model, by adopting the technical scheme that a one-way circulating non-return device consisting of the non-return valve core and the spring is arranged at one side of the ball valve core in an inner channel of the valve body and is used for integrating the ball valve used for being switched on or off and a non-return valve used for unidirectional circulation, so that the problems and defects of high cost and inconvenience in construction and maintenance in the prior art are overcome, and the pipe installation which is controlled to be opened and closed and non-return achieves the aims that the cost is reduced and the ball valve is convenient to construct and maintain.

Description

A kind of ball valve with unidirectional inverse-stopping functions

Technical field

The utility model relates to a kind of ball valve, specifically refers to open and close for HVAC, drinking water pipeline, can stop a kind of ball valve with unidirectional inverse-stopping functions of adverse current.

Background technique

HVAC, the sectional management of drinking water pipeline and maintenance, can control the keying of pipeline except needs, when also needing to reverse because of the ducted medium generation of upstream and downstream pressure reduction, automatically stop medium counter flow in downstream line to enter non-return in upstream line, prior art adopts to be connected in series respectively to install on this class pipeline and is used for the ball valve that opens and closes and the check valve that is used for non-return one-way flow, two kinds of valves are installed have been brought inconvenience to construction and the maintenance of pipeline because needs are connected in series respectively, also increased simultaneously cost of material, construction cost and maintenance cost afterwards, therefore, prior art exists cost high, the problems and shortcomings of construction maintenance inconvenience.

Summary of the invention

Problems and shortcomings for above-mentioned prior art existence, the utility model adopts the backstop of the one-way flow that the side setting be positioned at the ball valve core in the internal channel of valve body is made of antireverse valve spool and spring, to and be used for the technological scheme that the check valve of one-way flow becomes one for the ball valve that opens and closes, a kind of ball valve with unidirectional inverse-stopping functions is provided, be intended to make need to control open and close and non-return pipeline is installed, reach reduce costs, the purpose of constructability maintenance.

The purpose of this utility model is achieved in that a kind of ball valve with unidirectional inverse-stopping functions, comprises valve body, ball valve core, antireverse valve spool, spring, wherein: the copper shell that is provided with the circular tube shaped that hollow inner passageway, two ends open wide centered by described valve body;

Described ball valve core is the stainless steel components of spheroidal, and the center of ball valve core is provided with manhole that level runs through and is called the core hole, and the rear side sphere centre of ball valve core is provided with described core hole quadrature and the circular hole that communicates and is called side opening;

The ball valve core is arranged in the left part internal channel of valve body, corresponding to being provided with valve rod base protruding upward and that be provided with central through bore above the central position valve body of ball valve core, the upper end of ball valve core is connected with valve rod, the central through bore that the upper end upward sliding of described valve rod passes described valve rod base protrude from described valve rod base above, the upper end of described valve rod is connected with handle; The right part internal channel that is arranged in the valve body on ball valve core the right is provided with described antireverse valve spool, the right side of antireverse valve spool is provided with spring, spring forces antireverse valve spool to be blockaded to be positioned at the right part internal channel of the valve body on ball valve core the right, formation makes flowing medium one-way flow from left to right, from right to left the non-return mechanism of cut-off; Two of the front and back of valve body outer side surface is arranged with respectively the A spare interface in the position corresponding to the described side opening of ball valve core, and two described A spare interface communicate with the inwall of the internal channel of valve body; Two of the front and back of valve body outer side surface also is provided with respectively the B spare interface in the position corresponding to described spring; Two described B spare interface communicate with the internal channel of valve body respectively, and A spare interface and B spare interface all are equipped with the plug capping; The left port of valve body is the import of flowing medium, and the right output port of valve body is the outlet of flowing medium;

The direction face of structure representation is divided into up, down, left, right, front, rear side, wherein, the front by in the face of the face of statement main body, the back is the face relative with described front.

Working principle and beneficial effect

During application, be connected with the mouth of pipe of upstream by described import, described outlet is connected with the mouth of pipe of downstream pipeline, directly with the control Nodes of this device serial connection at pipeline; But handle with sleeve drives the keying of ball valve core rotation pilot line through valve rod, when the ducted medium generation of upstream and downstream pressure reduction reversed, antireverse valve spool stoped the medium counter flow in downstream line to enter in upstream line automatically; When needing, the A spare interface is connected the connection on manifold road with the B spare interface; When the ball valve core was opened the internal channel of valve body, the described A spare interface of valve body rear side communicated with described core hole by described side opening, can be used for the medium of the described internal channel of valve body is carried out sample testing; When the internal channel of ball valve core checking-valve body, two described A spare interface communicate and communicate by the described internal channel of described side opening with the right of ball valve core simultaneously through the described core hole of ball valve cores, can be used for the medium of the described internal channel on the right of ball valve core is carried out sample testing; The right part internal channel medium that described B spare interface can be used for contrary spool carries out sample testing.

Above-mentioned, the utility model adopts the backstop of the one-way flow that the side setting be positioned at the ball valve core in the internal channel of valve body is made of antireverse valve spool and spring, to and be used for the technological scheme that the check valve of one-way flow becomes one for the ball valve that opens and closes, overcome prior art and had the problems and shortcomings that cost is high, construction maintenance is inconvenient, a kind of ball valve with unidirectional inverse-stopping functions that provides, make need to control to open and close and non-return pipeline is installed, reached reduce costs, the purpose of constructability maintenance.

Description of drawings

Fig. 1 is the cross-sectional schematic of the structure of a kind of ball valve with unidirectional inverse-stopping functions of the present utility model;

Fig. 2 is the schematic top plan view of the structure of a kind of ball valve with unidirectional inverse-stopping functions of the present utility model;

Fig. 3 is that the axle of the structure of a kind of ball valve with unidirectional inverse-stopping functions of the present utility model measures intention.

Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but should not be construed as any restriction of the present utility model.

In figure: valve body 1, A spare interface 11, B spare interface 12, ball valve core 2, valve rod 21, handle 22, core hole 23, side opening 24, antireverse valve spool 3, spring 31.

Embodiment

Consult Fig. 1～Fig. 3, a kind of ball valve with unidirectional inverse-stopping functions of the present utility model comprises valve body 1, ball valve core 2, antireverse valve spool 3, spring 31, wherein: the copper shell that is provided with the circular tube shaped that hollow inner passageway, two ends open wide centered by described valve body 1;

Described ball valve core 2 is the stainless steel components of spheroidal, and the center of ball valve core 2 is provided with manhole that level runs through and is called core hole 23, and the rear side sphere centre of ball valve core 2 is provided with described core hole 23 quadratures and the circular hole that communicates and is called side opening 24;

Ball valve core 2 is arranged in the left part internal channel of valve body 1, corresponding to being provided with valve rod base protruding upward and that be provided with central through bore above the central position valve body 1 of ball valve core 2, the upper end of ball valve core 2 is connected with valve rod 21, the central through bore that the upper end upward sliding of described valve rod 21 passes described valve rod base protrude from described valve rod base above, the upper end of described valve rod 21 is connected with handle 22; The right part internal channel that is arranged in the valve body 1 on ball valve core 2 the right is provided with described antireverse valve spool 3, the right side of antireverse valve spool 3 is provided with spring 31, spring 31 forces antireverse valve spool 3 to be blockaded to be positioned at the right part internal channel of the valve body 1 on ball valve core 2 the right, formation makes flowing medium one-way flow from left to right, from right to left the non-return mechanism of cut-off; Two of the front and back of valve body 1 outer side surface is arranged with respectively 11, two described A spare interface 11 of A spare interface in the position corresponding to the described side opening 24 of ball valve core 2 and communicates with the inwall of the internal channel of valve body 1; Two of the front and back of valve body 1 outer side surface also is provided with respectively B spare interface 12 in the position corresponding to described spring 31; Two described B spare interface 12 communicate with the internal channel of valve body 1 respectively, and A spare interface 11 and B spare interface 12 all are equipped with the plug capping; The left port of valve body 1 is the import of flowing medium, and the right output port of valve body 1 is the outlet of flowing medium;

The direction face of structure representation is divided into up, down, left, right, front, rear side, wherein, the front by in the face of the face of statement main body, the back is the face relative with described front.

Working principle and beneficial effect

During application, be connected with the mouth of pipe of upstream by described import, described outlet is connected with the mouth of pipe of downstream pipeline, directly with the control Nodes of this device serial connection at pipeline; But handle with sleeve 22 drives the keying of ball valve core 2 rotation pilot line through valve rod 21, and when the ducted medium generation of upstream and downstream pressure reduction reversed, antireverse valve spool 3 stoped the medium counter flow in downstream line to enter in upstream line automatically; When needing, A spare interface 11 is connected the connection that can be used for the manifold road with the B spare interface; When ball valve core 2 was opened the internal channel of valve bodies 1, the described A spare interface 11 of valve body 1 rear side communicated with described core hole 23 by described side opening 24, can be used for the medium of the described internal channel of valve body 1 is carried out sample testing; When the internal channel of ball valve core 2 checking-valve bodies 1, two described A spare interface 11 communicate and communicate by the described internal channel of described side opening 24 with the right of ball valve core 2 simultaneously through the described core hole 23 of ball valve cores 2, can be used for the medium of the described internal channel on the right of ball valve core 2 is carried out sample testing; The right part internal channel medium that described B spare interface 12 can be used for contrary spool 3 carries out sample testing.

Claims (1)

1. ball valve with unidirectional inverse-stopping functions, comprise valve body (1), ball valve core (2), antireverse valve spool (3), spring (31), it is characterized in that: the copper shell that is provided with the circular tube shaped that hollow inner passageway, two ends open wide centered by described valve body (1);

Described ball valve core (2) is the stainless steel components of spheroidal, the center of ball valve core (2) is provided with the manhole that level runs through and is called core hole (23), and the rear side sphere centre of ball valve core (2) is provided with described core hole (23) quadrature and the circular hole that communicates and is called side opening (24);

Ball valve core (2) is arranged in the left part internal channel of valve body (1), corresponding to being provided with valve rod base protruding upward and that be provided with central through bore above the central position valve body (1) of ball valve core (2), the upper end of ball valve core (2) is connected with valve rod (21), the central through bore that the upper end upward sliding of described valve rod (21) passes described valve rod base protrude from described valve rod base above, the upper end of described valve rod (21) is connected with handle (22); The right part internal channel that is arranged in the valve body (1) on ball valve core (2) the right is provided with described antireverse valve spool (3), the right side of antireverse valve spool (3) is provided with spring (31), spring (31) forces antireverse valve spool (3) to be blockaded to be positioned at the right part internal channel of the valve body (1) on ball valve core (2) the right, formation makes flowing medium one-way flow from left to right, from right to left the non-return mechanism of cut-off; Two of the front and back of valve body (1) outer side surface is arranged with respectively A spare interface (11) in the position corresponding to the described side opening (24) of ball valve core (2), and two described A spare interface (11) communicate with the inwall of the internal channel of valve body (1); Two of the front and back of valve body (1) outer side surface also is provided with respectively B spare interface (12) in the position corresponding to described spring (31); Two described B spare interface (12) communicate with the internal channel of valve body (1) respectively, and A spare interface (11) and B spare interface (12) all are equipped with the plug capping; The left port of valve body (1) is the import of flowing medium, and the right output port of valve body (1) is the outlet of flowing medium;

The direction face of structure representation is divided into up, down, left, right, front, rear side, wherein, the front by in the face of the face of statement main body, the back is the face relative with described front.

Images