CN219510166U

CN219510166U - Ball valve with good sealing performance

Info

Publication number: CN219510166U
Application number: CN202223546091.8U
Authority: CN
Inventors: 李想; 梁硕; 刘咏
Original assignee: Tianjin Fuxin Valve Fittings Co ltd
Current assignee: KAITAI VALVE GROUP
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-08-11
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the technical field of ball valves, in particular to a ball valve with good sealing performance, which comprises: the ball valve comprises a ball valve body, wherein a valve rod is rotationally arranged in the ball valve body, and an internal thread block is fixedly arranged at the upper end of the valve rod; the ball body, the fixed setting in the valve rod lower extreme of spheroid, and the spheroid upper surface is equipped with the sealing washer groove, drive the inside rotation of screw rod internal thread piece through rotatory runner, thereby drive the piston board and slide downwards in the piston storehouse, the air in the piston storehouse gets into the cavity sealing washer through the pipeline, the cavity sealing washer inflation, hug closely with sealing washer groove and ball valve body, improve the leakproofness, when needs rotate the switch ball valve, the piston board that resets is with the inside air pumping of cavity sealing washer and is reduced, thereby drive the spheroid rotatory through rotating the valve rod this moment, thereby the switch ball valve, wearing and tearing cavity sealing washer when can exempting from to rotate, thereby lead to the leakproofness to descend, the switch finishes, with cavity sealing washer inflation can again.

Description

Ball valve with good sealing performance

Technical Field

The utility model relates to the technical field of ball valves, in particular to a ball valve with good sealing performance.

Background

The ball valve, the opening and closing piece (sphere) is driven by the valve rod and rotates around the axis of the ball valve. The device can also be used for regulating and controlling fluid, wherein the hard seal V-shaped ball valve has strong shearing force between the V-shaped ball core and the metal valve seat of the hard alloy for surfacing, and is particularly suitable for mediums containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the flow direction switching of the medium on the pipeline, and simultaneously can close any channel to connect the other two channels. The valve should be installed generally horizontally in the pipeline. The ball valve is divided into: pneumatic ball valve, electric ball valve, manual ball valve, among the prior art, the inside seal structure of ball valve is single, can leave the gap owing to need rotate between valve body and the spheroid, and current ball valve seals all adopts a sealing ring in the rotation handle department, after long-time use, and the sealed department can wearing and tearing, often can lead to because the leakproofness leads to water can overflow from rotating the spanner department when passing through inadequately to influence the use, consequently need a ball valve that leakproofness is good to make improvement to above-mentioned problem.

Disclosure of Invention

The utility model aims to provide a ball valve with good sealing performance, so as to solve the problems in the prior art.

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

a ball valve with good sealing properties, comprising:

the ball valve comprises a ball valve body, wherein a valve rod is rotationally arranged in the ball valve body, and an internal thread block is fixedly arranged at the upper end of the valve rod;

the ball body is fixedly arranged at the lower end of the valve rod, a sealing ring groove is formed in the upper surface of the ball body, when the switching ball valve needs to be rotated, the reset piston plate pumps air in the hollow sealing ring away and reduces the air, and at the moment, the valve rod is rotated to drive the ball body to rotate, so that the switching ball valve can be switched, the hollow sealing ring is worn when the valve rod is not rotated, and the sealing performance is reduced;

and the sealing mechanism is connected with the ball valve body into a whole.

As an example of the present utility model, the sealing mechanism includes:

the screw rod is arranged in the valve rod, and a rotating wheel is fixedly arranged at the upper end of the screw rod.

As an example of the present utility model, the sealing mechanism further includes:

the piston bin is arranged in the valve rod, a piston plate is slidably arranged in the piston bin, the piston plate is rotatably arranged at one end of the screw rod, and the rotating wheel drives the screw rod to rotate in the inner threaded block, so that the piston plate is driven to slide downwards in the piston bin.

the hollow sealing ring is arranged in the sealing ring groove, the hollow sealing ring is connected with the piston bin through a pipeline, air in the piston bin enters the hollow sealing ring through the pipeline, and the hollow sealing ring expands and clings to the sealing ring groove and the ball valve body, so that the tightness is improved.

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

1. according to the utility model, the screw rod is driven to rotate in the internal thread block by rotating the rotating wheel, so that the piston plate is driven to slide downwards in the piston bin, air in the piston bin enters the hollow sealing ring through the pipeline, the hollow sealing ring expands and clings to the sealing ring groove and the ball valve body, the sealing performance is improved, when the switch ball valve is required to be rotated, the reset piston plate pumps the air in the hollow sealing ring away and reduces, and at the moment, the valve rod is rotated to drive the ball body to rotate, so that the switch ball valve is opened and closed, the hollow sealing ring is worn when the valve rod is not rotated, the sealing performance is reduced, and after the switch is completed, the hollow sealing ring expands again.

Drawings

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

fig. 2 is a schematic view of the whole partial enlarged structure of the present utility model.

In the figure: 1. a rotating wheel; 2. an internal thread block; 3. a valve stem; 4. a piston plate; 5. a piston bin; 6. a ball valve body; 7. a sphere; 8. a seal ring groove; 9. a hollow seal ring; 10. a sealing mechanism; 11. and a screw rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present utility model. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

It should be noted that, in the description of the present utility model, the terms like "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. generally refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and these orientation terms do not indicate and imply that the apparatus or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

It should be noted that, in the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present utility model is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Referring to fig. 1-2, the present utility model provides a technical solution:

a ball valve with good sealing properties, comprising:

the ball valve comprises a ball valve body 6, wherein a valve rod 3 is rotatably arranged in the ball valve body 6, and an internal thread block 2 is fixedly arranged at the upper end of the valve rod 3;

the ball body 7 is fixedly arranged at the lower end of the valve rod 3, a sealing ring groove 8 is formed in the upper surface of the ball body 7, when the switch ball valve needs to be rotated, the reset piston plate 4 pumps air in the hollow sealing ring 9 away and reduces the air, and at the moment, the valve rod 3 is rotated to drive the ball body 7 to rotate, so that the switch ball valve is opened and closed, the hollow sealing ring 9 is worn during rotation-free, and the sealing performance is reduced;

and the sealing mechanism 10, wherein the sealing mechanism 10 is connected with the ball valve body 6 into a whole.

As an example of the present utility model, the sealing mechanism 10 includes:

the screw rod 11, the screw rod 11 sets up in valve rod 3 inside, and screw rod 11 upper end is fixed with runner 1.

As an example of the present utility model, the sealing mechanism 10 further includes:

the piston bin 5, the piston bin 5 sets up in valve rod 3 inside, and the inside slip in piston bin 5 is equipped with piston plate 4, and piston plate 4 rotates the setting with lead screw 11 one end, and rotatory runner 1 drives the inside rotation of lead screw 11 internal thread piece 2 to drive piston plate 4 and slide downwards in piston bin 5.

the inside cavity that is of cavity sealing washer 9, cavity sealing washer 9 sets up in sealing washer groove 8 inside, and cavity sealing washer 9 passes through pipe connection with piston storehouse 5, and the air in the piston storehouse 5 passes through the pipeline and gets into cavity sealing washer 9, and cavity sealing washer 9 inflation is hugged closely with sealing washer groove 8 and ball valve body 6, improves the leakproofness.

Working principle: when the ball valve is used, the rotary wheel 1 drives the screw rod 11 to rotate in the internal thread block 2, so that the piston plate 4 is driven to slide downwards in the piston bin 5, air in the piston bin 5 enters the hollow sealing ring 9 through a pipeline, the hollow sealing ring 9 expands and clings to the sealing ring groove 8 and the ball valve body 6, the tightness is improved, when the ball valve is required to be turned on or off, the reset piston plate 4 pumps away and reduces the air in the hollow sealing ring 9, and at the moment, the ball 7 is driven to rotate by rotating the valve rod 3, so that the ball valve is turned on or off, the hollow sealing ring 9 is worn out during rotation, the tightness is reduced, the hollow sealing ring 9 is expanded again after the ball valve is turned on or off, and the ball valve is turned on or off.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A ball valve with good sealing performance, which is characterized by comprising:

the ball valve comprises a ball valve body (6), wherein a valve rod (3) is rotatably arranged in the ball valve body (6), and an internal thread block (2) is fixedly arranged at the upper end of the valve rod (3);

the ball body (7) is fixedly arranged at the lower end of the valve rod (3), and a sealing ring groove (8) is formed in the upper surface of the ball body (7);

and the sealing mechanism (10) is connected with the ball valve body (6) into a whole.

2. The ball valve with good sealing performance according to claim 1, wherein: the sealing mechanism (10) comprises:

the screw rod (11), screw rod (11) set up in valve rod (3) inside, and screw rod (11) upper end is fixed with runner (1).

3. The ball valve with good sealing performance according to claim 1, wherein: the sealing mechanism (10) further comprises:

the piston bin (5), piston bin (5) set up in valve rod (3) inside, and the inside slip in piston bin (5) is equipped with piston board (4), and piston board (4) rotate with lead screw (11) one end and set up.

4. The ball valve with good sealing performance according to claim 1, wherein: the sealing mechanism (10) further comprises:

the hollow sealing ring (9), the inside cavity that is of hollow sealing ring (9) sets up, and hollow sealing ring (9) set up in sealing washer groove (8) inside, and hollow sealing ring (9) pass through the pipe connection with piston storehouse (5).