CN220204745U - Better three-way valve of leakproofness - Google Patents

Abstract

The utility model discloses a three-way valve with better sealing performance, which comprises a valve body, a valve plug and a valve rod, wherein a liquid inlet and a second liquid outlet are respectively formed in the left side and the right side of the valve body, a first liquid outlet is formed in the bottom end of the valve body, and the liquid inlet is communicated with the first liquid outlet through a second valve port. The valve plug can improve the tightness of the valve body, the lower sealing ring seals the lower contact tangent plane of the valve plug body and the first valve port when the first liquid outlet is opened, and the upper sealing ring seals the upper contact tangent plane of the valve plug body and the second valve port when the second liquid outlet is opened.

Description

Better three-way valve of leakproofness

Technical Field

The utility model relates to the technical field of valves, in particular to a three-way valve with better sealing performance.

Background

The three-way valve is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing countercurrent, stabilizing pressure, diverting or overflowing and the like. The three-way valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The three-way valve is also classified into cast iron valve, cast steel valve, stainless steel valve, chromium molybdenum vanadium steel valve, dual-phase steel valve, plastic valve, non-standard valve materials.

The three-way valve in the prior art has the large structure difference and comprises a valve body, a liquid inlet and two liquid outlets, the flow direction of liquid is controlled by arranging a movable valve plug, the sealing of the valve port is realized by arranging a rubber ring on the surface of the valve plug in the prior art, but the sealing ring is extruded continuously, so that the rubber ring is easy to age, and the sealing performance is reduced.

Therefore, how to provide a three-way valve with better sealing performance so as to solve the problems existing in the prior art has important significance for application.

Disclosure of Invention

In view of the above, an object of the present application is to provide a three-way valve with better sealing performance, so as to solve the problem.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a three-way valve that leakproofness is better, includes valve body, valve plug, valve rod, inlet and second liquid outlet have been seted up respectively to the left and right sides of valve body, first liquid outlet has been seted up to the bottom of valve body, through second valve port intercommunication between inlet and the first liquid outlet, through first valve port intercommunication between inlet and the second liquid outlet, the valve plug is installed in the bottom of valve rod, first valve port and second valve port all with valve plug looks adaptation.

Preferably, the valve plug comprises a valve plug body, an upper cone and a lower cone, wherein the upper cone and the lower cone are respectively arranged at the top end and the bottom end of the valve plug body, the top end of the upper cone is provided with an upper limiting block, the bottom end of the lower cone is provided with a lower limiting block, the surface of the upper cone is sleeved with an upper sealing ring, and the surface of the lower cone is sleeved with a lower sealing ring.

Preferably, the diameter of the upper cone gradually increases from top to bottom, and the diameter of the lower cone gradually decreases from top to bottom.

Preferably, the liquid inlet end of the liquid inlet, the liquid outlet end of the second liquid outlet and the liquid outlet end of the first liquid outlet are all provided with connecting flanges.

Preferably, the top of valve rod installs the filler, the top of valve rod is connected with the threaded rod, the hand wheel is installed on the top of threaded rod.

Compared with the prior art, the utility model has the beneficial effects that:

the valve plug can improve the tightness of the valve body, when the first liquid outlet is opened, the valve plug is positioned at the first valve port, the first valve port is sealed through the valve plug, when liquid flows, the pressure of the liquid pushes the lower sealing ring upwards, so that the lower sealing ring seals the lower contact section of the valve plug body and the first valve port, when the second liquid outlet is opened, the valve plug is positioned at the second valve port, the valve plug seals the second valve port, when the liquid flows, the pressure of the liquid pushes the upper sealing ring upwards, so that the upper sealing ring seals the upper contact section of the valve plug body and the second valve port.

The foregoing description is only a summary of the technical solutions of the present application, so that the technical means of the present application may be implemented according to the content of the specification, and so that the foregoing and other objects, features and advantages of the present application may be more clearly understood, the following detailed description of the preferred embodiments of the present application is given in conjunction with the accompanying drawings.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of the specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a diagram showing the structure of the present utility model in switching liquid outlets;

FIG. 3 is a schematic diagram of a valve plug according to the present utility model.

In the figure: 1. a valve body; 2. a liquid inlet; 3. a first liquid outlet; 4. a first valve port; 5. a second liquid outlet; 6. a filler; 7. a threaded rod; 8. a hand wheel; 9. a valve stem; 10. a valve plug; 11. a second valve port; 12. an upper limiting block; 13. an upper seal ring; 14. an upper cone; 15. a valve plug body; 16. a lower seal ring; 17. a lower limiting block; 18. and a lower cone.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the present application. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: the terms "/and" herein describe another associative object relationship, indicating that there may be two relationships, e.g., a/and B, may indicate that: the character "/" herein generally indicates that the associated object is an "or" relationship.

It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Referring to fig. 1-3, the present utility model provides a technical solution for a three-way valve with better sealing performance: including valve body 1, valve plug 10, valve rod 9, inlet 2 and second liquid outlet 5 have been seted up respectively to the left and right sides of valve body 1, first liquid outlet 3 has been seted up to the bottom of valve body 1, through second valve port 11 intercommunication between inlet 2 and the first liquid outlet 3, through first valve port 4 intercommunication between inlet 2 and the second liquid outlet 5, valve plug 10 installs in the bottom of valve rod 9, first valve port 4 and second valve port 11 all with valve plug 10 looks adaptation, the bottom of first valve port 4 is provided with downwardly opening's tubaeform conical surface, upwardly opening's tubaeform conical surface has been seted up on the top of second valve port 11.

The valve plug 10 comprises a valve plug body 15, an upper cone 14 and a lower cone 18, wherein the upper cone 14 and the lower cone 18 are respectively arranged at the top end and the bottom end of the valve plug body 15, the top end of the upper cone 14 is provided with an upper limiting block 12, the bottom end of the lower cone 18 is provided with a lower limiting block 17, the surface of the upper cone 14 is sleeved with an upper sealing ring 13, and the surface of the lower cone 18 is sleeved with a lower sealing ring 16.

The diameter of the upper cone 14 gradually increases from top to bottom and the diameter of the lower cone 18 gradually decreases from top to bottom.

The flange is all installed to the feed liquor end of feed liquor mouth 2, the play liquid end of second liquid outlet 5 and the play liquid end of first liquid outlet 3 for install the pipeline, install the feed liquor pipe with the flange of feed liquor mouth 2 feed liquor end, the flange installation play liquid pipeline of second liquid outlet 5 play liquid end, the flange installation play liquid pipeline of first liquid outlet 3 play liquid end.

The packing 6 is installed on the top of valve rod 9, and the top of valve rod 9 is connected with threaded rod 7, and hand wheel 8 is installed on the top of threaded rod 7, and hand wheel 8 drives threaded rod 7 rotation for threaded rod 7 big valve rod 9 goes up and down, accomplishes the control of valve.

When the valve is used, liquid enters the valve body through the liquid inlet 2, when the first liquid outlet 3 is opened, the valve plug 10 is positioned at the first valve port 4, so that the first valve port 4 is sealed, the liquid flows out through the first liquid outlet 3, the pressure generated by the liquid enables the first valve port 4 to be sealed through the valve plug, when the liquid flows, the pressure of the liquid pushes the lower sealing ring 16 upwards, the lower sealing ring 16 seals the lower contact tangent plane of the valve plug body 15 and the first valve port 4, when the second liquid outlet 5 is opened, the valve plug 10 is positioned at the second valve port 11, the valve plug 10 seals the second valve port 11, when the liquid flows, the pressure of the liquid enables the upper sealing ring 13 to seal the upper contact tangent plane of the body 15 and the second valve port 11, compared with the existing three-way valve, the valve can seal the valve port more tightly, and the sealing performance is better along with the increase of the flowing pressure of the medium, and the effect of closing more tightly is achieved.

The above description is only of the preferred embodiments of the present utility model and it is not intended to limit the scope of the present utility model, but various modifications and variations can be made by those skilled in the art. Variations, modifications, substitutions, integration and parameter changes may be made to these embodiments by conventional means or may be made to achieve the same functionality within the spirit and principles of the present utility model without departing from such principles and spirit of the utility model.

Claims (5)

1. A three-way valve with better sealing performance is characterized in that: including valve body (1), valve plug (10), valve rod (9), inlet (2) and second liquid outlet (5) have been seted up respectively to the left and right sides of valve body (1), first liquid outlet (3) have been seted up to the bottom of valve body (1), through second valve port (11) intercommunication between inlet (2) and first liquid outlet (3), through first valve port (4) intercommunication between inlet (2) and second liquid outlet (5), the bottom in valve rod (9) is installed in valve plug (10), first valve port (4) and second valve port (11) all with valve plug (10) looks adaptation.

2. A three-way valve with improved sealing as claimed in claim 1, wherein: the valve plug (10) comprises a valve plug body (15), an upper cone (14) and a lower cone (18), wherein the upper cone (14) and the lower cone (18) are respectively arranged at the top end and the bottom end of the valve plug body (15), an upper limiting block (12) is arranged at the top end of the upper cone (14), a lower limiting block (17) is arranged at the bottom end of the lower cone (18), an upper sealing ring (13) is sleeved on the surface of the upper cone (14), and a lower sealing ring (16) is sleeved on the surface of the lower cone (18).

3. A three-way valve with improved sealing as claimed in claim 2, wherein: the diameter of the upper cone (14) gradually increases from top to bottom, and the diameter of the lower cone (18) gradually decreases from top to bottom.

4. A three-way valve with improved sealing as claimed in claim 3, wherein: the liquid inlet end of the liquid inlet (2), the liquid outlet end of the second liquid outlet (5) and the liquid outlet end of the first liquid outlet (3) are all provided with connecting flanges.

5. A three-way valve with improved sealing as claimed in claim 4, wherein: the top of valve rod (9) is installed and is packed (6), the top of valve rod (9) is connected with threaded rod (7), hand wheel (8) are installed on the top of threaded rod (7).