CN212899839U

CN212899839U - Small anti-leakage ball valve

Info

Publication number: CN212899839U
Application number: CN202021285262.4U
Authority: CN
Inventors: 王群
Original assignee: Wuhu Bowande Steam Power Technology Co ltd
Current assignee: Wuhu Bowande Steam Power Technology Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-04-06
Anticipated expiration: 2030-07-04

Abstract

The utility model discloses a small-size antiseep ball valve, its technical scheme main points are: the ball valve comprises a ball valve body, a water inlet is formed in the left side of the ball valve body, a water outlet is formed in the right side of the ball valve body, the water inlet and the water outlet are communicated with each other, a valve core sealing seat is fixedly arranged in the ball valve body, a ball valve core is rotatably arranged in the valve core sealing seat, a first sealing ring is fixedly arranged at the upper end of the ball valve core, a second sealing ring is fixedly arranged at the upper end of the first sealing ring, the second sealing ring is fixedly connected with a ball valve rod, annular grooves are respectively formed in the ball valve body at positions corresponding to the two ends of the valve core sealing seat, rubber sealing rings are fixedly arranged in the annular grooves, a valve body interface is detachably connected in the water outlet, and a locking nut is rotatably arranged; the utility model provides a current relatively poor problem of ball valve leakproofness.

Description

Small anti-leakage ball valve

Technical Field

The utility model belongs to the technical field of the ball valve equipment technique and specifically relates to a small-size antiseep ball valve.

Background

The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and a small rotating moment. The ball valve is most suitable for being used as a switch and a stop valve, the V-shaped ball valve is widely applied to various industries in China, plays a very important role in national economy, and has the action of rotating 90 degrees, and the plug body is a ball body and is provided with a circular through hole or a channel passing through the axis of the ball valve.

When the existing ball valve is used, the valve core is rubbed with the interior of the valve body for a long time, so that the sealing performance of the existing ball valve is poor, and the existing ball valve is easy to leak; meanwhile, the sealing performance of the connecting part of the valve body and the outlet of the existing ball valve is poor when the ball valve is used.

SUMMERY OF THE UTILITY MODEL

To the problem of mentioning in the background art, the utility model aims at providing a small-size antiseep ball valve to solve the relatively poor problem of current ball valve leakproofness of mentioning in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a small anti-leakage ball valve comprises a ball valve body, a water inlet is arranged inside the left side of the ball valve body, a water outlet is arranged inside the right side of the ball valve body, the water inlet is communicated with the water outlet, a valve core sealing seat is fixedly arranged inside the ball valve body, a ball valve core is rotatably arranged inside the valve core sealing seat, the upper end of the ball valve core is fixedly provided with a first sealing ring, the upper end of the first sealing ring is fixedly provided with a second sealing ring, the second sealing ring is fixedly connected with the ball valve rod, annular grooves are respectively arranged in the ball valve body at the positions corresponding to the two ends of the valve core sealing seat, a rubber sealing ring is fixedly arranged inside the annular groove, a valve body interface is detachably connected inside the water outlet, and the upper end of the ball valve core is rotatably provided with a locking nut at a position corresponding to the ball valve body.

Furthermore, the outer end of the left side of the ball valve body is provided with an external thread of the water inlet, and the outer end of the right side of the valve body interface is provided with an external thread of the interface.

Through adopting above-mentioned technical scheme, be favorable to the ball valve and each other spare part between be connected the cooperation.

Furthermore, the valve core sealing seat is cylindrical, one end of the valve core sealing seat is a plane and is matched with the valve cavity in the ball valve body, and the other end of the valve core sealing seat is an inwards concave spherical surface and is matched with the ball valve core.

Through adopting above-mentioned technical scheme, can guarantee closely to cooperate between case seal receptacle and ball valve body, the ball valve case, guarantee the stability in the inside case working process of ball valve.

Furthermore, the valve core sealing seat is made of polytetrafluoroethylene.

By adopting the technical scheme, the polytetrafluoroethylene has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-adhesiveness, electric insulation property and good ageing resistance.

Furthermore, the rubber sealing ring is made of nitrile rubber.

By adopting the technical scheme, the nitrile rubber has the advantages of excellent oil resistance, higher wear resistance, better heat resistance and strong bonding force, and in addition, the nitrile rubber sealing ring also has good water resistance and air tightness, and the sealing performance of the sealing ring made of the nitrile rubber material is better.

Furthermore, the outer end of the locking nut is provided with a locking external thread, and the inside of the ball valve body is provided with an internal thread at a position corresponding to the locking external thread.

Through adopting above-mentioned technical scheme, be favorable to operating personnel to install lock nut to the inside of ball valve body, can improve the leakproofness of ball valve simultaneously.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the utility model discloses a, through the fixed case seal receptacle that is provided with in the inside of ball valve body, the one end of case seal receptacle is the valve pocket cooperation of plane and ball valve body inside, and the other end is indent sphere and the cooperation of ball valve case, when rotating the case, can reduce the friction of case and valve body inside, can improve the life of case when improving the inside leakproofness of ball valve.

2. The utility model discloses a, do not offer the annular groove in the position punishment corresponding to case seal receptacle both ends through the inside at the ball valve body, the fixed rubber seal that is provided with in inside of annular groove can guarantee the leakproofness of ball valve body and valve body interface connection department, prevents that the ball valve from taking place to leak.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a main sectional view of the present invention;

FIG. 2 is a schematic structural view of the ball valve body of the present invention;

fig. 3 is the structure schematic diagram of the ball valve spool and the ball valve rod of the utility model.

In the figure: 1. a ball valve body; 101. a water inlet external thread; 102. an internal thread; 103. an annular groove; 2. a water inlet; 3. a water outlet; 4. a valve core seal seat; 5. a ball valve spool; 6. a first seal ring; 7. a second seal ring; 8. a ball valve stem; 9. a rubber seal ring; 10. a valve body interface; 1001. an external thread of the interface; 11. locking the nut; 1101. and locking the external thread.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-3, a small anti-leakage ball valve comprises a ball valve body 1, a water inlet 2 is arranged inside the left side of the ball valve body 1, a water outlet 3 is arranged inside the right side of the ball valve body 1, the water inlet 2 and the water outlet 3 are communicated with each other, a valve core sealing seat 4 is fixedly arranged inside the ball valve body 1, a ball valve core 5 is rotatably arranged inside the valve core sealing seat 4, when the ball valve core 5 is rotated, friction between the ball valve core 5 and the inside of the ball valve body 1 can be reduced, the service life of the ball valve core 5 can be prolonged while the internal sealing performance of the ball valve body 1 is improved, a first sealing ring 6 is fixedly arranged at the upper end of the ball valve core 5, a second sealing ring 7 is fixedly arranged at the upper end of the first sealing ring 6, the second sealing ring 7 is fixedly connected with a ball valve rod 8, annular grooves 103 are respectively arranged at positions corresponding, the fixed rubber seal 9 that is provided with in inside of annular groove 103 can guarantee the leakproofness of ball valve body 1 and valve body interface 10 junction, prevents that ball valve body 1 from taking place to leak with valve body interface 10 junction, and the inside of delivery port 3 can be dismantled and be connected with valve body interface 10, and the upper end of ball valve case 5 is being rotated in the position department corresponding to ball valve body 1 and is provided with lock nut 11.

Referring to fig. 1 and 2, the left outer end of the ball valve body 1 is provided with a water inlet external thread 101, the right outer end of the valve body interface 10 is provided with an interface external thread 1001, when the ball valve is used, the left water inlet external thread 101 of the ball valve body 1 is connected with a water inlet pipe, the interface external thread 1001 on the right side of the valve body interface 10 is connected with a water outlet pipe, and the water flow in the water outlet pipe can be controlled by the ball valve.

Referring to fig. 1, the shape of the valve core seal seat 4 is cylindrical, wherein the middle of the valve core seal seat 4 is of a hollow structure, so as to ensure that the water inlet 2 and the water outlet 3 can be communicated with each other, one end of the valve core seal seat 4 is matched with the valve cavity inside the ball valve body 1 through a plane, the other end of the valve core seal seat is matched with the ball valve core 5 through an inwards concave spherical surface, and the stability of the valve core seal seat 4 inside the ball valve body 1 can be improved.

Referring to fig. 1, the valve plug sealing seat 4 is made of teflon, which has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-stick property, electrical insulation property and good anti-aging endurance, and in addition, because the teflon is a compressible material, the requirements on the precision of designing and processing the ball valve body 1 and the ball valve plug 5 are greatly reduced, and the cost of part processing is correspondingly reduced.

Referring to fig. 1, the rubber seal ring 9 is made of nitrile rubber, which has excellent oil resistance, high wear resistance, high heat resistance, high adhesion, good water resistance and air tightness, and good sealing performance.

Referring to fig. 1 and 2, an outer end of the locking nut 11 is provided with a locking external thread 1101, and an inner thread 102 is provided inside the ball valve body 1 at a position corresponding to the locking external thread 1101, wherein a sealing ring is fixedly provided at a position where the locking nut 11 and the ball valve body 1 are cooperatively connected with each other, so as to improve the sealing performance of the ball valve body 1.

The utility model discloses when using, operating personnel with lock nut 11 fixed mounting after ball valve body 1's inside, with 1 left water inlet external screw thread 101 of ball valve body and advance water piping connection, with interface external screw thread 1001 and the play water piping connection on valve body interface 10's right side, when the inside discharge of outlet pipe is controlled to needs, through rotating ball valve rod 8, ball valve rod 8 drives ball valve case 5 and rotates, can control the inside discharge of outlet pipe.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a small-size antiseep ball valve, includes ball valve body (1), its characterized in that: a water inlet (2) is formed in the left side of the ball valve body (1), a water outlet (3) is formed in the right side of the ball valve body (1), the water inlet (2) is communicated with the water outlet (3), a valve core sealing seat (4) is fixedly arranged in the ball valve body (1), a ball valve core (5) is rotatably arranged in the valve core sealing seat (4), a first sealing ring (6) is fixedly arranged at the upper end of the ball valve core (5), a second sealing ring (7) is fixedly arranged at the upper end of the first sealing ring (6), the second sealing ring (7) is fixedly connected with the ball valve rod (8), annular grooves (103) are respectively formed in the positions corresponding to the two ends of the valve core sealing seat (4) in the ball valve body (1), and rubber sealing rings (9) are fixedly arranged in the annular grooves (103), the water outlet (3) is detachably connected with a valve body connector (10), and the upper end of the ball valve core (5) is rotatably provided with a locking nut (11) at a position corresponding to the ball valve body (1).

2. A small-sized anti-leakage ball valve according to claim 1, wherein: a water inlet external thread (101) is formed in the outer end of the left side of the ball valve body (1), and an interface external thread (1001) is formed in the outer end of the right side of the valve body interface (10).

3. A small-sized anti-leakage ball valve according to claim 1, wherein: the valve core sealing seat (4) is cylindrical, one end of the valve core sealing seat (4) is a plane and is matched with the valve cavity in the ball valve body (1), and the other end of the valve core sealing seat is a concave spherical surface and is matched with the ball valve core (5).

4. A small-sized anti-leakage ball valve according to claim 3, wherein: the valve core sealing seat (4) is made of polytetrafluoroethylene.

5. A small-sized anti-leakage ball valve according to claim 1, wherein: the rubber sealing ring (9) is made of nitrile rubber.

6. A small-sized anti-leakage ball valve according to claim 1, wherein: the outer end of the locking nut (11) is provided with a locking external thread (1101), and the inner part of the ball valve body (1) is provided with an internal thread (102) at a position corresponding to the locking external thread (1101).