CN210397780U

CN210397780U - Hard sealing ball float valve

Info

Publication number: CN210397780U
Application number: CN201921067684.1U
Authority: CN
Inventors: 王学政; 陈小鸣; 周健; 王依立; 苏醒
Original assignee: Zhejiang Same General Automatic Control Equipment Ltd By Share Ltd
Current assignee: Zhejiang Same General Automatic Control Equipment Ltd By Share Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-04-24
Anticipated expiration: 2029-07-09

Abstract

The utility model relates to a ball valve technical field, in particular to hard sealing ball cock, including valve gap, valve body, disk seat, valve rod and spheroid, valve gap and valve body fixed connection form the valve chamber between valve gap and the valve body, disk seat and spheroid are established in the valve chamber, the one end of valve rod with the spheroid is connected, and the valve rod can drive the spheroid rotatory, be equipped with interior concave part and spheroid through-hole on the spheroid. The concave part is further divided into a first concave part and a second concave part, the first concave part is positioned on the upper side of the sphere, and the second concave part is positioned on the lower side of the sphere. The utility model provides a hard seal ball-cock assembly, the valve rod can rotate more steadily, and the improvement that the spheroid structure was made makes the spheroid physical stamina rotate more in a flexible way, has reduced the operating torque of ball valve to can satisfy actual demand better.

Description

Hard sealing ball float valve

Technical Field

The utility model relates to a ball valve technical field, in particular to hard seal ball-cock assembly.

Background

The ball valve is widely applied to industries such as petroleum, chemical industry, metallurgy, urban central heating and the like. The sealing surface of the hard sealing floating ball valve is provided with a wear-resistant coating, and the hard sealing floating ball valve is mainly suitable for working conditions containing granular media. For the performance considerations of a ball valve, one is a good sealing effect and the other is a low operating torque. The ball valve requires small operation torque and requires the ball to rotate flexibly, but the ball structure of most hard seal float valves in the existing market makes the rotation of the ball inflexible, which is not beneficial to reducing the operation torque. In view of the above-mentioned shortcomings, the present invention provides an improvement.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of background art, the utility model provides a hard seal ball-cock assembly, the valve rod can rotate more steadily, and the improvement that the spheroid structure was made makes the spheroid physical stamina rotate more in a flexible way, has reduced the operating torque of ball valve to can satisfy actual demand better.

The utility model adopts the technical proposal that: the utility model provides a hard sealed ball-cock assembly, includes valve gap, valve body, disk seat, valve rod and spheroid, valve gap and valve body fixed connection form the valve room between valve gap and the valve body, disk seat and spheroid are established in the valve room, the one end of valve rod with the spheroid is connected, and the valve rod can drive the spheroid rotatory, be equipped with interior recess and spheroid through-hole on the spheroid. In the technical scheme, the valve chamber formed between the valve cover and the valve body is a space for accommodating the valve seat and the ball body, the valve rod drives the ball body to rotate, when the valve body is rotated to the position that the ball body through hole is aligned with the valve body channel and the valve cover channel, the hard sealing ball float valve can be opened, the valve seat can support the ball body, the valve seat can also play a sealing role, the inner concave part arranged on the ball body can reduce the mass of the ball body, meanwhile, the flexibility of the rotation of the ball body is increased, the reduction of the operation torque of the ball valve is facilitated, and because the inner concave part is additionally arranged on the ball body, the redundant part is removed when the ball body is processed, the processing cost can be reduced.

In order to reduce the mass of the ball more, the concave portion is further divided into a first concave portion located on the upper side of the ball and a second concave portion located on the lower side of the ball.

In order to enable the valve seat to better support the ball body and enable the valve seat to have a better sealing effect, the valve seat is a hard sealing valve seat, a valve seat step and a ball body supporting portion are arranged on the valve seat, and valve seat grooves matched with the valve seat are arranged on the valve body and the valve cover.

In order to enable one end of the valve rod to be connected with the ball body more stably, a connecting groove is formed in the ball body, a connecting sleeve is fixedly arranged in the connecting groove, and one end of the valve rod is connected with the connecting sleeve through a flat key.

In order to enable the valve rod to be more stable when the valve rod rotates, a valve rod protrusion is arranged on the valve rod, a shaft sleeve, a protrusion clamping sleeve, packing and a packing gland are sleeved on the valve rod, a shaft sleeve groove matched with the shaft sleeve is formed in the valve body, the shaft sleeve is located below the protrusion of the valve rod, the protrusion clamping sleeve is matched with the protrusion of the valve rod, the packing is arranged between the protrusion clamping sleeve and the packing gland, and the packing gland is fixed on the valve body.

Preferably, the valve cover is provided with a connecting bolt, the valve cover is detachably connected with the valve body through the connecting bolt, and a sealing gasket is arranged at the joint of the valve body and the valve cover.

Preferably, the valve body and the valve cover are both provided with mounting flanges.

To sum up, the utility model discloses beneficial effect does:

1. the ball body is provided with the first inner concave part and the second inner concave part, so that the mass of the ball body can be effectively reduced, the ball body can rotate more flexibly when being driven by the valve rod, the operation torque of the ball valve is reduced, and the hard seal ball float valve is convenient to open or close;

2. the valve seat step arranged on the valve seat can be tightly attached to the valve body or the valve cover, so that a good sealing effect is achieved;

3. the valve rod is provided with the valve rod bulge, and the valve rod is sleeved with the shaft sleeve, the bulge clamping sleeve, the packing and the packing gland, so that the valve rod is more stable in rotation.

The present invention will be further explained with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

fig. 2 is a left side view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B;

FIG. 5 is an enlarged view of a portion of FIG. 1 at C;

the drawing marks comprise 1-a valve cover, 2-a valve body, 3-a valve seat, 4-a valve rod, 5-a ball, 6-a valve chamber, 7-an inner concave part, 8-a ball through hole, 9-a valve body channel, 10-a valve cover channel, 11-a first inner concave part, 12-a second inner concave part, 13-a valve seat step, 14-a ball supporting part, 15-a valve seat groove, 16-a left valve seat, 17-a right valve seat, 18-a connecting groove, 19-a connecting sleeve, 20-a valve rod bulge, 21-a shaft sleeve, 22-a bulge clamping sleeve, 23-a packing, 24-a packing gland, 25-a shaft sleeve groove, 26-a connecting bolt, 27-a sealing gasket and 28-a mounting flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 5 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention.

As shown in fig. 1 to 5, the hard seal float valve disclosed in this embodiment includes a valve cover 1, a valve body 2, a valve seat 3, a valve rod 4 and a ball body 5, wherein the valve cover 1 is fixedly connected to the valve body 2, a valve chamber 6 is formed between the valve cover 1 and the valve body 2, the valve seat 3 and the ball body 5 are disposed in the valve chamber 6, one end of the valve rod 4 is connected to the ball body 5, the valve rod 4 can drive the ball body 5 to rotate, and the ball body 5 is provided with an inner concave portion 7 and a ball body through hole 8. In the above technical solution, the valve chamber 6 formed between the bonnet 1 and the valve body 2 is a space for accommodating the valve seat 3 and the ball body 5, the valve rod 4 drives the ball body 5 to rotate, when the ball body through hole 8 is rotated to align with the valve body channel 9 and the bonnet channel 10, the hard seal ball float valve can be opened, the valve seat 3 supports the ball body 5 and also seals the valve seat 3, the inner concave part 7 arranged on the ball body 5 can reduce the mass of the ball body 5, and meanwhile, the flexibility of the rotation of the ball body 5 is increased, which is beneficial to reducing the operation torque of the ball valve, and since the inner concave part 7 is additionally arranged on the ball body 5, the redundant part is removed when the ball body 5 is processed, the processing cost can be reduced, and resources are saved. The diameter of the ball through hole 8 is the same as that of the valve body channel 9 and the valve cover channel 10, so that the full-diameter hard sealing ball cock is formed.

In order to reduce the mass of the ball 5 even more, the concave portion 7 is further divided into a first concave portion 11 and a second concave portion 12, the first concave portion 11 being located on the upper side of the ball 5, and the second concave portion 12 being located on the lower side of the ball 5. First interior concave part 11 is the part of the upside of spheroid 5 inwards indent, unnecessary segment part among the prior art has been removed to the downside of spheroid 5, and the second interior concave part 12 that sets up is the part of spheroid 5 bottom inwards indent, and the shape is like the round platform, through set up on spheroid 5 first interior concave part 11 and second interior concave part 12 can effectively alleviate spheroid 5's quality, just so make spheroid 5 by valve rod 4 can rotate more in a flexible way when driving, has made things convenient for to open or close hard seal ball cock assembly. The segment and the truncated cone are common knowledge, wherein the segment is a part of a ball obtained by cutting the ball with a plane, and is not specifically described here.

In order to make the valve seat 3 better support the ball 5 and make the valve seat 3 better seal, the valve seat 3 is a hard seal valve seat 3, the valve seat 3 is provided with a valve seat step 13 and a ball support portion 14, and the valve body 2 and the valve cover 1 are provided with valve seat grooves 15 matched with the valve seat 3. The valve seat 3 is further divided into a left valve seat 16 and a right valve seat 17, the right valve seat 17 is installed in a valve seat groove 15 formed in the valve body 2, the left valve seat 16 is installed in the valve seat groove 15 formed in the valve cover 1, a ball supporting portion 14 on the left valve seat 16 and a ball supporting portion 14 on the right valve seat 17 support the ball 5 together, the ball supporting portion 14 is in contact with the ball 5 to form effective sealing, the outer side of the valve seat step 13 is tightly attached to the valve body 2 or the valve cover 1 to have good sealing effect, the diameter of the inner side of the valve seat step 13 is the same as that of the ball through hole 8, and therefore the inner side of the valve seat step 13 can form smooth transition among the valve cover channel 10, the ball through hole 8 and the valve body channel 9, and transmission media can pass through the valve seat. The hard sealing valve seat 3 belongs to the prior art and is not described in detail here.

In order to enable one end of the valve rod 4 to be connected with the sphere 5 more stably, a connecting groove 18 is arranged on the sphere 5, a connecting sleeve 19 is fixedly arranged in the connecting groove 18, and one end of the valve rod 4 is connected with the connecting sleeve 19 through a flat key. In this embodiment, the connecting groove 18 is formed in the ball 5, the connecting sleeve 19 is arranged in the connecting groove 18, the connecting sleeve 19 and the connecting groove 18 are in interference fit, the connecting sleeve 19 is provided with a key groove, one end of the valve rod 4 is also provided with a key groove, and one end of the valve rod 4 is connected with the connecting sleeve 19 through a flat key. The flat key connection belongs to the prior art and is not specifically described herein.

In order to enable the valve rod 4 to be more stable in rotation, the valve rod 4 is provided with a valve rod protrusion 20, the valve rod 4 is sleeved with a shaft sleeve 21, a protrusion clamping sleeve 22, a packing 23 and a packing gland 24, the valve body 2 is provided with a shaft sleeve groove 25 matched with the shaft sleeve 21, the shaft sleeve 21 is located below the valve rod protrusion 20, the protrusion clamping sleeve 22 is matched with the valve rod protrusion 20, the packing 23 is arranged between the protrusion clamping sleeve 22 and the packing gland 24, and the packing gland 24 is fixed on the valve body 2. The shaft sleeve 21 arranged in the shaft sleeve groove 25 has a supporting effect on the valve rod 4, the valve rod protrusion 20 can limit the valve rod 4, the protrusion clamping sleeve 22 can just sleeve the valve rod protrusion 20, the packing 23 can adopt a gasket or a disc spring or a combination of the gasket and the disc spring, adjustment can be made according to actual conditions, the packing gland 24 is fixed on the valve body 2 through a bolt, the packing gland 24 can compress the packing 23 and the protrusion clamping sleeve 22, the valve body 2 and the protrusion clamping sleeve 22 are matched to limit the valve rod protrusion 20, and further limit the valve rod 4, and the valve rod protrusion 20 is arranged on the valve rod 4, and the shaft sleeve 21, the protrusion clamping sleeve 22, the packing 23 and the packing gland 24 are sleeved on the valve rod 4, so that the valve rod 4 is more stable in rotation.

Be equipped with connecting bolt 26 on the valve gap 1, valve gap 1 pass through connecting bolt 26 with valve body 2 can dismantle the connection, and the junction of valve body 2 and valve gap 1 is equipped with sealed pad 27. The sealing gasket 27 arranged at the joint of the valve body 2 and the valve cover 1 effectively enhances the sealing performance of the joint.

And mounting flanges 28 are arranged on the valve body 2 and the valve cover 1. The mounting flange 28 arrangement provides for ease of installation of the hard seal float valve. The mounting flange 28 is conventional and will not be described in detail herein.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concept is not limited to this embodiment, and any modification that utilizes the inventive concept is intended to be within the scope of the present patent application.

Claims

1. The utility model provides a hard seal ball-cock assembly, including valve gap, valve body, disk seat, valve rod and spheroid, its characterized in that: the valve comprises a valve body, a valve cover, a valve seat, a ball body and a valve rod, wherein the valve cover is fixedly connected with the valve body, a valve chamber is formed between the valve cover and the valve body, the valve seat and the ball body are arranged in the valve chamber, one end of the valve rod is connected with the ball body, the valve rod can drive the ball body to rotate, and the ball body is provided with an inner.

2. A hard-seal float valve in accordance with claim 1, wherein: the concave part is further divided into a first concave part and a second concave part, the first concave part is positioned on the upper side of the sphere, and the second concave part is positioned on the lower side of the sphere.

3. A hard-seal float valve in accordance with claim 2, wherein: the valve seat is a hard sealing valve seat, a valve seat step and a ball supporting part are arranged on the valve seat, and a valve seat groove matched with the valve seat is formed in the valve body and the valve cover.

4. A hard-seal float valve in accordance with claim 3, wherein: the ball body is provided with a connecting groove, a connecting sleeve is fixedly arranged in the connecting groove, and one end of the valve rod is connected with the connecting sleeve through a flat key.

5. The hard seal float valve of claim 4, wherein: the improved valve is characterized in that a valve rod protrusion is arranged on the valve rod, a shaft sleeve, a protrusion clamping sleeve, packing and a packing gland are sleeved on the valve rod, a shaft sleeve groove matched with the shaft sleeve is formed in the valve body, the shaft sleeve is located below the protrusion of the valve rod, the protrusion clamping sleeve is matched with the protrusion of the valve rod, the protrusion clamping sleeve is arranged between the protrusion clamping sleeve and the packing gland, and the packing is fixed on the valve body.

6. The hard seal float valve of claim 5, wherein: the valve cover is provided with a connecting bolt, the valve cover is detachably connected with the valve body through the connecting bolt, and a sealing gasket is arranged at the joint of the valve body and the valve cover.

7. The hard seal float valve of claim 6, wherein: and mounting flanges are arranged on the valve body and the valve cover.