CN210600258U

CN210600258U - Vacuum ball valve

Info

Publication number: CN210600258U
Application number: CN201921339702.7U
Authority: CN
Inventors: 安源; 李龙; 安禹衡
Original assignee: Suzhou Tiangong Metal Manufacturing Co Ltd
Current assignee: Suzhou Tiangong Metal Manufacturing Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-05-22
Anticipated expiration: 2029-08-19

Abstract

The utility model relates to a vacuum ball valve, which comprises a valve body, an end flange, a bolt, a nut, a valve rod, a ball core, a first sealing ring, a second sealing ring, a packing component and a valve seat component; the left side and the right side of the valve body are respectively provided with an end flange which are symmetrically distributed, and the insides of the two end flanges are respectively provided with a valve seat assembly which is symmetrically distributed; the utility model discloses a detachable structure so that wash, adopted seat circle, position circle and the soft sealing washer three of triangle to make up the disk seat subassembly that forms moreover, formed multistage sealed, in case the resilience that seat circle and position circle still can produce by the soft sealing washer of triangle after becoming invalid because of wearing and tearing compresses tightly the ball core in order to seal up the compensation, therefore has longer life.

Description

Vacuum ball valve

Technical Field

The utility model relates to a vacuum ball valve.

Background

The ball valve is mainly used as a common component for cutting, distributing and changing the flow direction of a medium in a pipeline, and the vacuum ball valve is a ball valve with working pressure lower than standard atmospheric pressure and certain vacuum; the existing vacuum ball valve is mostly integral, cannot be disassembled, is inconvenient to clean the inside of the ball valve, only depends on a single hard valve seat to seal a ball core, and once the ball valve is worn and worn, the ball valve can be integrally replaced, so that the service life is short, and the ball valve is to be further improved.

SUMMERY OF THE UTILITY MODEL

To the present situation of the above prior art, the technical problem to be solved by the utility model is to provide an adopt detachable structure so that wash to the core has formed multistage sealed vacuum ball valve in order to prolong life.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a vacuum ball valve comprises a valve body, end flanges, bolts, nuts, a valve rod, a ball core, a first sealing ring, a second sealing ring, a packing component and a valve seat component, and is characterized in that the left side and the right side of the valve body are respectively provided with the end flanges which are symmetrically distributed, the left end flange is internally provided with a plurality of bolts which are distributed along the circumferential direction at equal angles in an inserting way, the threaded end of each bolt penetrates through the right end flange, the threaded end of each bolt is sleeved with one nut, each nut is arranged on the right side of the right end flange, the ball core is arranged in the valve body, the valve seat components which are symmetrically distributed are arranged in the two end flanges, the two valve seat components are respectively arranged on the left side and the right side of the ball core, a sealing sleeve is outwards formed on the upper side of the valve body, and the valve rod is vertically and rotatably arranged in the sealing sleeve, the packing component is sleeved on the outer side of the upper end of the valve rod and is arranged in the sealing sleeve; the inner sides of the two end flanges are respectively provided with a first sealing ring, and the left end and the right end of the valve body are respectively provided with a second sealing ring; the lower end of the valve rod is fixed on the upper side of the ball core.

Preferably, the packing assembly comprises a packing combination, a pre-tightening spring and a packing closing nut; the packing combination is embedded in the sealing sleeve and sleeved on the valve rod; the packing closing nut sleeve is connected to the valve rod in a threaded mode, embedded in the sealing sleeve and arranged above the packing combination, and the pre-tightening spring is sleeved on the valve rod and arranged between the packing combination and the packing closing nut.

Preferably, the valve body is internally provided with transversely distributed valve holes, and the two second sealing rings are respectively embedded in the inner walls of the two ends of the valve holes.

Preferably, two the inboard of end flange all outwards is formed with a sleeve of mutual symmetric distribution, two the sleeve inserts respectively inside the both ends of valve opening, two the second sealing washer is established respectively outside two sleeves, two the disk seat subassembly inlays respectively to be established in two sleeves.

Preferably, the ball core is arranged in the valve hole, the material passing holes which are transversely distributed are formed in the ball core, the through holes which are positioned on the same straight line are formed in the two end flanges, and the material passing holes and the two through holes are concentrically arranged.

Preferably, the valve seat assembly comprises a seat ring, a positioning ring and a triangular soft sealing ring; the seat circle inlays to be established in the sleeve and the laminating is on the inner terminal surface of end flange, the recess that the hoop distributes is seted up to the top inboard of seat circle, the position circle inlays to be established in the recess, the soft sealing washer of triangle sets up between seat circle and position circle.

Preferably, an arc-shaped surface is formed on the outer side above the seat ring, and correspondingly, an arc-shaped convex ring is formed on the inner side of the positioning ring outwards; the arc face and the arc convex ring are attached to the outer side of the ball core, the triangular soft sealing ring is embedded in the joint of the arc face and the arc convex ring, and one corner edge of the triangular soft sealing ring is attached to the outer side of the ball core.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a detachable structure so that wash, adopted seat circle, position circle and the soft sealing washer three of triangle to make up the disk seat subassembly that forms moreover, formed multistage sealed, in case the resilience that seat circle and position circle still can produce by the soft sealing washer of triangle after becoming invalid because of wearing and tearing compresses tightly the ball core in order to seal up the compensation, therefore has longer life.

Drawings

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

fig. 2 is a partial enlarged structural view of the present invention at a.

Detailed Description

As shown in fig. 1-2, a vacuum ball valve comprises a valve body 4, an end flange 1, a bolt 2, a nut 3, a valve rod 5, a ball core 6, a first sealing ring 13, a second sealing ring 14, a packing assembly and a valve seat assembly; the left side and the right side of the valve body 4 are respectively provided with an end flange 1 which are symmetrically distributed, a plurality of bolts 2 which are distributed at equal angles along the circumferential direction are inserted into one end flange 1 on the left side, the threaded end of each bolt 2 penetrates through one end flange 1 on the right side, a nut 3 is sleeved on the threaded end of each bolt 2, each nut 3 is arranged on the right side of one end flange 1 on the right side, the ball core 6 is arranged inside the valve body 4, valve seat assemblies which are symmetrically distributed mutually are arranged inside the two end flanges 1, the two valve seat assemblies are respectively arranged on the left side and the right side of the ball core 6, a sealing sleeve 41 is outwards formed on the upper side of the valve body 4, the valve rod 5 is vertically and rotatably arranged in the sealing sleeve 41, and the packing assemblies are sleeved on the outer side of the upper end of the; the inner sides of the two end flanges 1 are respectively provided with a first sealing ring 13, and the left end and the right end of the valve body 4 are respectively provided with a second sealing ring 14; the lower end of the valve rod 5 is fixed on the upper side of the ball core 6; the packing component comprises a packing combination 7, a pre-tightening spring 8 and a packing closing nut 9; the packing combination 7 is embedded in the sealing sleeve 41 and sleeved on the valve rod 5; the packing closing nut 9 is sleeved and screwed on the valve rod 5, embedded in the sealing sleeve 41 and arranged above the packing combination 7, and the pre-tightening spring 8 is sleeved on the valve rod 5 and arranged between the packing combination 7 and the packing closing nut 9; the valve body 4 is internally provided with transversely distributed valve holes 42, the two second sealing rings 14 are respectively embedded in the inner walls of two ends of the valve hole 42, the ball core 6 is arranged in the valve hole 42, the ball core 6 is internally provided with transversely distributed material passing holes 61, the inner sides of the two end flanges 1 are outwards provided with sleeves 101 which are symmetrically distributed with each other, the two sleeves 101 are respectively inserted into two ends of the valve hole 42, the two second sealing rings 14 are respectively sleeved outside the two sleeves 101, the inner parts of the two end flanges 1 are respectively provided with a through hole 102 which is positioned on the same straight line, the material passing holes 61 and the two through holes 102 are concentrically arranged, the two valve seat assemblies are respectively embedded in the two sleeves 101, and each valve seat assembly comprises a seat ring 10, a positioning ring 12 and a triangular soft sealing ring 11; the first hard valve seat 3 is embedded in the first counter bore 103, the seat ring 10 is embedded in the sleeve 101 and attached to the end face of the inner end of the end flange 1, grooves 1001 distributed circumferentially are formed in the inner side above the seat ring 10, the positioning ring 12 is embedded in the grooves 1001, the triangular soft sealing ring 11 is arranged between the seat ring 10 and the positioning ring 12, an arc-shaped surface 1002 is formed on the outer side above the seat ring 10, and correspondingly, an arc-shaped convex ring 121 is formed on the inner side of the positioning ring 12; the arc-shaped surface 1002 and the arc-shaped convex ring 121 are both attached to the outer side of the ball core 6, the triangular soft sealing ring 11 is embedded in the joint of the arc-shaped surface 1002 and the arc-shaped convex ring 121, and one corner edge of the triangular soft sealing ring 11 is attached to the outer side of the ball core 6 to play a role in sealing.

When in use: connecting a material pipe to one of the through holes 102 and inputting the material, then rotating the valve rod 5 to rotate in the sealing sleeve 41 so as to drive the ball core 6 to rotate, so that two ends of the material passing hole 61 are respectively communicated with the two through holes 102, and the material is discharged from the other through hole 102 through the material passing hole 61; the triangular soft sealing ring 11, the arc-shaped surface 1002 and the arc-shaped convex ring 121 play a role in sealing simultaneously; the two end flanges 1 can be detached by detaching the nut 3 on each bolt 2, so that the valve hole 42 and the interior of the material passing hole 61 are cleaned; the first sealing ring 13 and the second sealing ring 14 have good sealing effect.

The ball valve is mainly used as a common component for cutting, distributing and changing the flow direction of a medium in a pipeline, and the vacuum ball valve is a ball valve with working pressure lower than standard atmospheric pressure and certain vacuum; most of the existing vacuum ball valves are integral, cannot be disassembled, are inconvenient to clean the interior of the ball valve, only rely on a single hard valve seat to seal the ball core 6, and only integrally replace the ball valve once worn, so that the service life is short; the utility model discloses a detachable structure so that wash, adopted seat circle 10, position circle 12 and the soft sealing washer of triangle 11 three combinations of valve seat subassembly that forms moreover, formed multistage sealed, in case seat circle 10 and position circle 12 still can compress tightly ball core 6 in order to seal up the compensation by the bounce that the soft sealing washer of triangle 11 produced after becoming invalid because of wearing and tearing, therefore have longer life.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A vacuum ball valve comprises a valve body, end flanges, bolts, nuts, a valve rod, a ball core, a first sealing ring, a second sealing ring, a packing component and a valve seat component, and is characterized in that the left side and the right side of the valve body are respectively provided with the end flanges which are symmetrically distributed, the left end flange is internally provided with a plurality of bolts which are distributed along the circumferential direction at equal angles in an inserting way, the threaded end of each bolt penetrates through the right end flange, the threaded end of each bolt is sleeved with one nut, each nut is arranged on the right side of the right end flange, the ball core is arranged in the valve body, the valve seat components which are symmetrically distributed are arranged in the two end flanges, the two valve seat components are respectively arranged on the left side and the right side of the ball core, a sealing sleeve is outwards formed on the upper side of the valve body, and the valve rod is vertically and rotatably arranged in the sealing sleeve, the packing component is sleeved on the outer side of the upper end of the valve rod and is arranged in the sealing sleeve; the inner sides of the two end flanges are respectively provided with a first sealing ring, and the left end and the right end of the valve body are respectively provided with a second sealing ring; the lower end of the valve rod is fixed on the upper side of the ball core.

2. The vacuum ball valve as recited in claim 1, wherein the packing assembly comprises a packing combination, a pre-tensioned spring and a packing retainer; the packing combination is embedded in the sealing sleeve and sleeved on the valve rod; the packing closing nut sleeve is connected to the valve rod in a threaded mode, embedded in the sealing sleeve and arranged above the packing combination, and the pre-tightening spring is sleeved on the valve rod and arranged between the packing combination and the packing closing nut.

3. The vacuum ball valve as claimed in claim 1, wherein the valve body defines a transversely distributed valve hole therein, and the two second sealing rings are respectively embedded in inner walls of two ends of the valve hole.

4. The vacuum ball valve as claimed in claim 3, wherein the two end flanges are formed with a sleeve symmetrically distributed to each other at an inner side thereof, the two sleeves are respectively inserted into both ends of the valve hole, the two second sealing rings are respectively disposed outside the two sleeves, and the two valve seat assemblies are respectively disposed in the two sleeves.

5. The vacuum ball valve according to claim 1, wherein the ball core is disposed in the valve hole, the ball core is provided with material passing holes transversely distributed therein, the two end flanges are provided with through holes on the same straight line, and the material passing holes and the two through holes are concentrically disposed.

6. The vacuum ball valve according to claim 4, wherein the valve seat assembly comprises a seat ring, a positioning ring and a soft triangular sealing ring; the seat circle inlays to be established in the sleeve and the laminating is on the inner terminal surface of end flange, the recess that the hoop distributes is seted up to the top inboard of seat circle, the position circle inlays to be established in the recess, the soft sealing washer of triangle sets up between seat circle and position circle.

7. The vacuum ball valve as claimed in claim 6, wherein the upper outer side of the seat ring is formed with an arc-shaped surface, and correspondingly, the inner side of the retainer ring is formed with an arc-shaped convex ring outwards; the arc face and the arc convex ring are attached to the outer side of the ball core, the triangular soft sealing ring is embedded in the joint of the arc face and the arc convex ring, and one corner edge of the triangular soft sealing ring is attached to the outer side of the ball core.