CN218670743U

CN218670743U - Pneumatic control three-way shuttle valve

Info

Publication number: CN218670743U
Application number: CN202220810918.2U
Authority: CN
Inventors: 胡永根; 刘素峰
Original assignee: Qingdao Jingtian'er Technology Co ltd
Current assignee: Qingdao Jingtian'er Technology Co ltd
Priority date: 2022-04-10
Filing date: 2022-04-10
Publication date: 2023-03-21
Anticipated expiration: 2032-04-10

Abstract

The utility model provides a gas accuse tee bend shuttle valve, major structure include left end lid, tee bend valve body chamber, piston, positioning bolt, shuttle commutator, right-hand member lid in proper order and seal up, are equipped with three fluid connector and two control gas connector, and the during operation uses compressed air as power, the gas accuse tee bend shuttle valve of accurate control that can high-efficient.

Description

Pneumatic control three-way shuttle valve

Technical Field

The utility model relates to a valve field, concretely relates to gas accuse valve.

Background

In the fluid transport industry, one common working condition is: fluid medium is carried to two lateral conduits or is carried to a trunk line by two lateral conduits incessant alternate by a trunk line, in the past practice, adopts two lateral conduits to set up two valves and controls, complex operation, and the action is asynchronous easily, blocks and pause the error, has the potential safety hazard, causes the wasting of resources.

The pneumatic control three-way valve in the prior art has two types, adopts a ball valve structure and a stop valve structure, and has the common characteristics that: 1. the reversing actuator is arranged outside the valve body, and the external actuator is linked with the internal mechanism of the three-way valve to reverse through the control connecting rod during action, so that the sealing gasket between the actuator and the valve is easily worn and aged due to frequent operation, the valve is leaked, the action is not in place, the use effect is influenced, and the service life of the valve is shortened; 2. the valve body is huge, the installation space is large, the pipeline is complicated, the transmission parts are too many, and the production and maintenance cost is high; 3. in actual use, the fluid resistance is large, and the jamming influences the flow direction and the flow rate of the pipeline medium during action.

Disclosure of Invention

In view of the above problems, the utility model aims at providing a gas accuse three-way shuttle valve with built-in reversing mechanism, convenient operation, compact structure, low in production cost, maintenance are simple, reduce wearing and tearing, reduce reaction time, the switching-over is synchronous, non-maintaining.

The utility model relates to a gas accuse tee bend shuttle valve is with compressed air as power, and control gas accuse tee bend shuttle valve that can be high-efficient accurate is equipped with three fluid connector and two control gas connectors, is equipped with controllable reversing mechanism.

The three fluid interfaces are respectively a main fluid channel first interface, a branch fluid channel second interface and a third interface, and the second interface and the third interface are respectively connected with the end cover; when the device works, the first interface can be controlled to be independently communicated with the second interface and the third interface, and the branch interface on the other side is closed.

And the two control gas interfaces are communicated with control gas to enter the reversing mechanism.

The fluid reversing mechanism comprises a piston, a shuttle type reverser and a sealing gasket.

The main body structure of the pneumatic control three-way shuttle valve sequentially comprises a left end cover, a three-way valve body cavity, a piston, a positioning bolt, a shuttle type commutator, a right end cover and a sealing gasket.

The left end cover and the right end cover are axially provided with a through medium channel, one side end surface of the end cover is connected with a body cavity of the three-way valve, and a positioning groove and a sealing gasket groove are arranged at the connecting part; a control gas inlet, a gas inlet channel and a piston fixing seat are radially arranged on the end cover; the end cover can axially rotate for 360 degrees so as to conveniently adjust and control the direction of the gas inlet; the end face of the other side of the end cover is connected with the branch pipeline, and the connection form of the end face and the branch pipeline is any form of threaded connection, buckling connection and flange connection.

The three-way valve body cavity: the three interfaces are respectively a first interface in the middle and a second interface and a third interface at the right end, and the first interface is connected with the main pipeline in any form of threaded connection, buckle connection and flange connection; the connection form of the second interface and the third interface with the left end cover and the right end cover is any form of threaded connection, buckle connection and flange connection, and a positioning bolt hole is arranged at the joint.

The piston is as follows: sealing grooves are arranged in the middle of the piston and the left and right fixing seats, air inlet channels are arranged in the centers of the two sides, and the left and right sides of the piston can be separated into mutually independent spaces by the piston.

The shuttle reverser: the outer end surfaces on two sides are used as sealing surfaces and are provided with sealing grooves, and cylinder cavities are arranged inside the sealing grooves; the extension piston rod can be controlled to axially move during working.

The piston is fixed on the piston fixing seats of the left end cover and the right end cover, and the piston air inlet channel is communicated with the end cover control air interface and the air inlet channel.

The shuttle type commutator controls the gas to control the commutator to move along the axial direction of the piston, a sealing ring is arranged at the position of the shuttle type commutator and the piston rod for sealing, and a sealing ring is arranged at the position of the shuttle type commutator and the piston for sealing.

Sealing gaskets are arranged at the joints of the left end cover and the right end cover and the three-way valve body cavity; when the shuttle type commutator works, the sealing surface on one side of the shuttle type commutator is tightly pressed and sealed with the sealing gasket on the same side of the shuttle type commutator.

Has the beneficial effects.

The utility model adopts the pneumatic control mode to control the valve, the valve is opened rapidly, the adjustment is accurate, the operation is safe, and other accessories such as a proximity switch and the like can be added at the two ends of the shuttle type commutator to realize the remote control of the valve; meanwhile, the utility model has small volume, simple and beautiful appearance, the shuttle type commutator is the only movable part, and the control and the sealing are integrated into a whole, so that the service life of the valve is longer; the shuttle type commutator is unique in overall shape, is slightly influenced by medium pressure, is smoother in medium flow state, is higher in switching speed and smaller in pressure loss, and is more suitable for fast and well-developed modern industrial control; meanwhile, the calibers of the three interfaces are completely the same, so that each outlet can keep good flow consistency; because the utility model discloses self just can realize multiple functions such as switching-over, reposition of redundant personnel, confluence transport of medium, so improvement production efficiency that can be very big, both can practice thrift the space simultaneously and can the energy can be saved again.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. It is obvious that the drawing in the following description is only an embodiment of the invention, and that for a person skilled in the art, other embodiments can be derived from the drawing provided without inventive effort.

Fig. 1 is a schematic view of the main structure of the present invention.

Fig. 2 is a schematic diagram illustrating the main structure of the present invention.

Fig. 3 is a schematic view of the working state of the present invention (the left port closed state).

In the figure: the device comprises a left end cover, a right end cover 1, a piston 2, a positioning bolt 3, a shuttle type commutator 4, a three-way valve body cavity 5 and a sealing gasket 6; the control device comprises a positioning groove 11, a sealing groove 12, a second interface 13, a piston seat 14, a vent hole 15, a first control gas inlet 16, a third interface 17, a second control gas inlet 18, a vent hole 21, a sealing groove 22, an O-shaped ring 23, a piston rod 24, a vent hole 25, a piston pocket 26, an O-shaped ring 27, a sealing groove 28, a sealing groove 41, an O-shaped ring 42, a shuttle-type sealing cylinder body 43, a positioning pin 44, a connecting thread 45, a sealing gasket 46, a shuttle-type sealing cylinder end cover 47, a first control chamber 48, a second control chamber 49, a second interface channel 51, a third interface channel 52, a positioning bolt hole 53 and a first interface 54.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1, 2, and 3: a pneumatic control three-way shuttle valve sequentially comprises a left end cover 1, a right end cover 1, a piston 2, a positioning bolt 3, a shuttle type commutator 4, a three-way valve body cavity 5 and a sealing gasket 6; the control device comprises a positioning groove 11, a sealing groove 12, a second interface 13, a piston seat 14, a vent hole 15, a first control gas inlet 16, a third interface 17, a second control gas inlet 18, a vent hole 21, a sealing groove 22, an O-shaped ring 23, a piston rod 24, a vent hole 25, a piston pocket 26, an O-shaped ring 27, a sealing groove 28, a sealing groove 41, an O-shaped ring 42, a shuttle-type sealing cylinder body 43, a positioning pin 44, a connecting thread 45, a sealing gasket 46, a shuttle-type sealing cylinder end cover 47, a first control chamber 48, a second control chamber 49, a second interface channel 51, a third interface channel 52, a positioning bolt hole 53 and a first interface 54.

As shown in fig. 1 and 2: the left end cover 1 and the right end cover 1 of the pneumatic control three-way shuttle valve are respectively arranged at the ends of a second interface channel 51 and a third interface channel 52 of a three-way valve body cavity 5, compress a sealing gasket 6 and are fixedly positioned by a positioning bolt 3; the two ends of the piston 2 are respectively clamped in the piston seats 14 of the left end cover 1 and the right end cover 1, the two ends are sealed by the O-shaped rings 23 embedded in the sealing grooves 22, and at the moment, the

control gas inlets

16 and 18 are communicated with the vent holes 15, the vent holes 21 and the vent holes 25; the shuttle commutator 4 is mounted on the piston rod 24 and divided into two independent chambers by the O-ring 27 mounted in the sealing groove 28 of the piston pocket 26, and the space between the shuttle commutator 4 and the piston rod 24 is sealed by the O-ring 42 mounted in the sealing groove 41; the shuttle type commutator 4 is a closed space formed by a shuttle type sealing cylinder body 43, a positioning pin 44, a connecting thread 45, a sealing gasket 46, a shuttle type sealing cylinder end cover 47 and the like, and the shuttle type commutator 4 can freely slide left and right along the piston rod 24.

As shown in fig. 1, 2, and 3: the pneumatic control three-way shuttle valve can be divided into five detachable structural parts which are fixed and not detached frequently, and the five fixed structural parts are a left end cover 1, a right end cover 1, a piston 2, a shuttle type commutator 4, a three-way valve body cavity 5 and a sealing gasket 6 respectively, so that the assembly in the processing and manufacturing process is facilitated, and the pneumatic control three-way shuttle valve can be detached for maintenance and repair under the necessary condition in the later maintenance process.

As shown in fig. 1, 2, and 3: the pneumatic control three-way shuttle valve is reliable in sealing performance, a sealing gasket 6 is arranged between an end cover 1 and a three-way valve body cavity 5, sealing structures are respectively arranged between the end cover 1 and a piston 2 and between the piston 2 and a shuttle type commutator 4, the sealing structures are formed by opening ring grooves at the positions of two end covers 1 or the end parts of the piston 2, preferably more than two ring grooves,

sealing rings

23, 27 and 42 are arranged in the ring grooves, the sealing performance of medium circulation in the three-way valve body cavity 5 is guaranteed, and meanwhile the sealing performance and the stable action of an inner cavity of the shuttle type commutator 4 are guaranteed.

As shown in fig. 3, in operation, control gas is communicated with the vent hole 21 and the vent hole 25 through the gas inlet 16 and the vent hole 15, enters the control chamber one 48, the shuttle-type commutator 4 is forced to slide to the left end, the sealing gasket 6 is pressed, the second connector 13 is closed, the first connector 54 and the third connector 17 are opened, and fluid media can be conveyed in the opened channels at will.

In order to better realize the diversion effect and reduce the medium resistance of the valve, the front end of the shuttle type commutator 4 is provided with a conical body, and an inwards concave fan or a spiral flow passage is arranged, which is not limited herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a gas accuse tee bend shuttle valve, major structure includes left end cover, tee bend valve body chamber, piston, positioning bolt, shuttle commutator, right-hand member lid and sealed pad in proper order, characterized by:

the left end cover and the right end cover: a through fluid channel is axially arranged, the end surface on one side of the end cover is connected with the body cavity of the three-way valve, a sealing gasket is tightly pressed at the joint of the end cover and the body cavity of the three-way valve, and the connection form of the end surface and the three-way valve body is any one of threaded connection, buckle connection and flange connection; a control gas inlet, a gas inlet channel and a piston fixing seat are radially arranged on the end cover; the end cover is provided with a positioning groove and a sealing gasket groove, and can axially rotate for 360 degrees so as to conveniently adjust and control the direction of the gas inlet; the end face of the other side of the end cover is connected with the branch pipeline, and the connection form of the end face and the branch pipeline is any form of threaded connection, buckling connection and flange connection;

the three-way valve body cavity: the three interfaces are respectively a middle first interface, a left end interface and a right end interface, and the first interface is connected with the main pipeline in any form of threaded connection, buckle connection and flange connection; the connection form of the second interface and the third interface with the left end cover and the right end cover is any form of threaded connection, buckle connection and flange connection, and a positioning bolt hole is arranged at the connection position;

the piston is as follows: sealing grooves are formed in the middle position of the piston and the positions of the left fixing seat and the right fixing seat, air inlet channels are formed in the centers of the two sides of the piston, and the left side and the right side of the piston can be separated into mutually independent spaces by the piston;

the shuttle reverser: the outer end surfaces on two sides are used as sealing surfaces and are provided with sealing grooves, and cylinder cavities are arranged inside the sealing grooves; the extension piston rod can be controlled to move axially when the extension piston rod works.

2. The pneumatic control three-way shuttle valve according to claim 1, which is characterized in that: the pneumatic three-way shuttle valve comprises three fluid interfaces and two control gas interfaces.

3. The pneumatic control three-way shuttle valve according to claim 2, which is characterized in that: the three fluid interfaces of the pneumatic control three-way shuttle valve are respectively a main fluid channel interface and two branch fluid channel interfaces which can be controlled to be opened and closed, when the pneumatic control three-way shuttle valve works, the main fluid channel interface can be controlled to be communicated with one branch fluid channel interface, and the branch fluid channel interface on the other side is closed.

4. The pneumatic control three-way shuttle valve according to claim 1, which is characterized in that: the piston is fixed on the piston fixing seats of the left end cover and the right end cover, and the piston air inlet channel is communicated with the end cover control air interface and the air inlet channel.

5. The pneumatic control three-way shuttle valve according to claim 1, which is characterized in that: the shuttle type commutator is arranged in the three-way valve body cavity, the shuttle type commutator is controlled to move along the axial direction of the piston by controlling gas, a sealing ring is arranged at the position of the shuttle type commutator and the piston rod for sealing, and a sealing ring is arranged at the position of the shuttle type commutator and the piston for sealing.

6. The pneumatic control three-way shuttle valve according to claim 1, which is characterized in that: sealing gaskets are arranged at the joints of the left end cover and the right end cover and the three-way valve body cavity; when the shuttle type commutator works, the sealing surface at one side of the shuttle type commutator is tightly pressed and sealed with the sealing gasket at the same side of the shuttle type commutator.