CN212959947U - Corrosion-resistant ball valve - Google Patents

Abstract

The utility model belongs to the technical field of the ball valve technique and specifically relates to a corrosion-resistant ball valve, including left valve body and right valve body, all be equipped with hemisphere chamber, two on left side valve body and the right valve body hemisphere chamber has clamped the ball core jointly, ball core side symmetrical arrangement has the cross section, the cross section middle part is equipped with the blind hole, the blind hole interpolation is equipped with inserts the post, insert post top fixedly connected with anticorrosion piece. The utility model discloses a set up the anticorrosion piece on the ball core, long-term the back of using, it is used for sealed department can not produce huge corruption, and the leakproofness is still good.

Description

Corrosion-resistant ball valve

Technical Field

The utility model relates to a ball valve technical field especially relates to a corrosion-resistant ball valve.

Background

The ball valve realizes the sealing of the ball valve by the matching of a sealing element arranged in a valve body and a spherical valve core, the valve core is usually manufactured by common steel or stainless steel according to different service environments of the ball valve, and the sealing element matched with the valve core is usually manufactured by plastic.

The sealing spherical surface of the existing ball valve can generate leakage due to corrosion after being used for a long time, so that the ball valve cannot be used.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a corrosion-resistant ball valve.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a corrosion-resistant ball valve, includes left valve body and right valve body, all be equipped with the hemisphere chamber on left side valve body and the right valve body, two the hemisphere chamber clamps the ball core jointly, ball core side symmetrical arrangement has the cross section, the cross section middle part is equipped with the blind hole, the post is inserted to the blind hole interpolation, it has the anti-corrosion piece to insert post top fixedly connected with.

Preferably, still be equipped with stop gear between post and the blind hole of inserting, stop gear includes that the symmetry sets up the arc draw-in groove on the blind hole lateral wall, every all clamp the fore-set in the arc draw-in groove, every all the cover is equipped with the holding ring on the fore-set, the holding ring is fixed in the through-hole of setting in the post side of inserting, and is equipped with the spring between the holding ring.

Preferably, one side surface of the positioning ring is designed to be arc-shaped, and the radian of the side surface of the positioning ring is the same as that of the side surface of the inserted column.

Preferably, a valve rod is fixed on the top of the ball core.

Preferably, the valve rod is provided with a packing for sealing.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model has the advantages that the anti-corrosion block is arranged on the ball core, so that after long-term use, the sealing part can not generate huge corrosion, and the sealing property is still good;

2. the utility model provides an anticorrosion piece passes through stop gear and ball core fixed connection, has made things convenient for to dismantle the change to the anticorrosion piece.

Drawings

Fig. 1 is a schematic structural view of a corrosion-resistant ball valve of the present invention;

FIG. 2 is a half-sectional view of a corrosion-resistant ball valve of the present invention;

fig. 3 is a schematic view of a ball core structure of a corrosion-resistant ball valve according to the present invention;

fig. 4 is a sectional view of an anti-corrosion block of the anti-corrosion ball valve of the present invention.

In the figure: the valve comprises a left valve body 1, a right valve body 2, a hemispherical cavity 3, a ball core 4, a cross section 5, an anti-corrosion block 6, a blind hole 7, an inserted column 8, an arc-shaped clamping groove 9, a through hole 10, a positioning ring 11, a top column 12, a spring 13, a valve rod 14 and a filler 15.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1-4, a corrosion-resistant ball valve comprises a left valve body 1 and a right valve body 2, the left valve body 1 and the right valve body 2 are both provided with a hemispherical cavity 3, the two hemispherical cavities 3 are jointly clamped with a ball core 4, the top of the ball core 4 is fixed with a valve rod 14, the valve rod 14 is provided with a filler 15 for sealing, the side surfaces of the ball core 4 are symmetrically provided with a cross section 5, the middle part of the cross section 5 is provided with a blind hole 7, an inserting column 8 is inserted into the blind hole 7, the top of the inserting column 8 is fixedly connected with an anti-corrosion block 6, the anti-corrosion block 6 is assembled on the cross section 5 on the side surface of the ball core 4, the anti-corrosion block 6 has strong corrosion resistance, when the ball valve is used for a long time, the sealing.

Insert and still be equipped with stop gear between post 8 and the blind hole 7, stop gear includes that the symmetry sets up the arc draw-in groove 9 on the blind hole 7 lateral wall, jack post 12 has all been clamped in every arc draw-in groove 9, all the cover is equipped with holding ring 11 on every jack post 12, 11 side designs of holding ring are the arc, its radian is the same with the side radian of inserting post 8, holding ring 11 is fixed in the through-hole 10 that sets up in the side of inserting post 8, and be equipped with spring 13 between the holding ring 11, conveniently demolish and change anticorrosion piece 6 from the ball core 4 through setting up stop gear, only need rotatory anticorrosion piece 6 during demolishs, back post 12 is from the interior back-out of arc draw-in groove 9, alright take post 8 from blind hole 7 in will inserting, thereby realize the change of demol.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a corrosion-resistant ball valve, includes left valve body (1) and right valve body (2), its characterized in that, all be equipped with hemisphere chamber (3) on left side valve body (1) and the right valve body (2), two hemisphere chamber (3) clamp ball core (4) jointly, ball core (4) side symmetric arrangement has cross section (5), cross section (5) middle part is equipped with blind hole (7), blind hole (7) interpolation is equipped with inserts post (8), it has anti-corrosion block (6) to insert post (8) top fixedly connected with.

2. The corrosion-resistant ball valve according to claim 1, wherein a limiting mechanism is further arranged between the insert column (8) and the blind hole (7), the limiting mechanism comprises arc-shaped clamping grooves (9) symmetrically formed in the side wall of the blind hole (7), each arc-shaped clamping groove (9) is internally provided with an ejection column (12), each ejection column (12) is sleeved with a positioning ring (11), the positioning rings (11) are fixed in through holes (10) formed in the side surfaces of the insert column (8), and springs (13) are arranged between the positioning rings (11).

3. A corrosion resistant ball valve according to claim 2, characterized in that the retaining ring (11) is curved on one side in the same arc as the side of the insert post (8).

4. A corrosion resistant ball valve in accordance with claim 1, wherein a valve stem (14) is fixed to the top of said core (4).

5. A corrosion resistant ball valve according to claim 4, wherein said valve stem (14) is provided with a packing (15) for sealing.

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