CN215487786U

CN215487786U - Sanitary ball valve

Info

Publication number: CN215487786U
Application number: CN202122252528.6U
Authority: CN
Inventors: 何进
Original assignee: Xuzhou Helishi Valve Technology Co ltd
Current assignee: Xuzhou Helishi Valve Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-01-11
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a sanitary ball valve which comprises a middle valve body, a first valve body and a second valve body, wherein the first valve body and the second valve body are positioned on two sides of the middle valve body, a mounting hole is formed in the middle of the middle valve body, a valve ball is arranged in the mounting hole, channels are formed in the first valve body, the second valve body and the valve ball, a sealing sleeve is further arranged in the mounting hole, the inner side wall of the sealing sleeve is tightly attached to the outer side wall of the valve ball, and the end surfaces on two sides of the sealing sleeve are respectively tightly attached to the end surfaces, facing the middle valve body, of the first valve body and the second valve body. The seal cover is located between mounting hole and the valve ball, and the terminal surface of the lateral wall of valve ball, first valve body and second valve body all closely laminates with the seal cover. The ball valve can produce wearing and tearing after long-term the use, influences the leakproofness of ball valve. The seal cover wraps up the valve ball completely, and then can prevent the medium to get into between mounting hole and the valve ball, has greatly reduced the medium and has detained, has improved the passageway cleanliness factor, makes the ball valve possess excellent sealing performance simultaneously.

Description

Sanitary ball valve

Technical Field

The utility model relates to the technical field of valves, in particular to a sanitary ball valve.

Background

The sanitary ball valve is mainly applied to industries with high requirements on sanitary standards, such as food, beverage, pharmacy, biology and the like. The production of such valves not only places high demands on the material of manufacture, but also on the permeability of the medium. In the conveying process, if the medium is remained in the channel, the subsequent flowing medium is polluted, so that the composition of downstream products is influenced, the unqualified rate of the products is high, and the enterprise benefit is influenced.

Therefore, how to reduce the residual medium in the channel of the sanitary ball valve is a technical problem which needs to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sanitary ball valve, which is characterized in that a sealing sleeve is arranged in a middle valve body, and the sealing sleeve can prevent a medium from entering between a mounting hole and a valve ball, so that the residue of the medium in a channel of the sanitary ball valve is reduced.

In order to achieve the purpose, the utility model provides a sanitary ball valve which comprises a middle valve body, a first valve body and a second valve body, wherein the first valve body and the second valve body are positioned on two sides of the middle valve body, a mounting hole is formed in the middle of the middle valve body, a valve ball is arranged in the mounting hole, channels are formed in the first valve body, the second valve body and the valve ball, a sealing sleeve is further arranged in the mounting hole, the inner side wall of the sealing sleeve is tightly attached to the outer side wall of the valve ball, and the end faces of two sides of the sealing sleeve are respectively tightly attached to the end faces, facing the middle valve body, of the first valve body and the second valve body.

Preferably, the seal sleeve comprises a first sleeve body and a second sleeve body which are positioned on two sides of a preset plane, and the preset plane passes through the center of the valve ball.

Preferably, the intermediate valve body, the first valve body and the second valve body are connected by a fixing stud and a fixing nut.

Preferably, the first valve body and the second valve body are provided with annular connecting grooves towards the outer sides of the end surfaces of the middle valve body, and two ends of the middle valve body are respectively inserted into the connecting grooves of the first valve body and the second valve body.

Preferably, the outer side wall of the sealing sleeve is attached to the inner side wall of the mounting hole.

Preferably, the side wall of the mounting hole is provided with a sealing boss arranged along the circumferential direction of the mounting hole, and the outer side wall of the sealing sleeve is provided with a sealing groove matched with the sealing boss.

Preferably, still include two annular disk seats, first valve body with the second valve body orientation the terminal surface of middle valve body has and is located the mounting groove of passageway periphery, the disk seat is installed in the mounting groove, the disk seat orientation the side of valve ball is equipped with and is used for with the arcwall face of valve ball lateral wall laminating.

Preferably, the minimum value of the inner diameter of the sealing sleeve is equal to the outer diameter of the valve seat.

The utility model provides a sanitary ball valve which comprises a middle valve body, a first valve body and a second valve body, wherein the first valve body and the second valve body are positioned on two sides of the middle valve body, a mounting hole is formed in the middle of the middle valve body, a valve ball is arranged in the mounting hole, channels are formed in the first valve body, the second valve body and the valve ball, a sealing sleeve is further arranged in the mounting hole, the inner side wall of the sealing sleeve is tightly attached to the outer side wall of the valve ball, and the end faces of two sides of the sealing sleeve are respectively tightly attached to the end faces, facing the middle valve body, of the first valve body and the end faces, facing the middle valve body, of the second valve body.

The seal cover is located between mounting hole and the valve ball, and the terminal surface of the lateral wall of valve ball, first valve body and second valve body all closely laminates with the seal cover. The ball valve can produce wearing and tearing after long-term the use, influences the leakproofness of ball valve. The seal cover wraps up the valve ball completely, and then can prevent the medium to get into between mounting hole and the valve ball, has greatly reduced the medium and has detained, has improved the passageway cleanliness factor, makes the ball valve possess excellent sealing performance simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a cross-sectional view of the middle of a sanitary grade ball valve provided by the present invention.

Wherein the reference numerals in fig. 1 are:

the valve comprises a first valve body 1, an intermediate valve body 2, a second valve body 3, a sealing sleeve 4, a valve seat 5, a valve ball 6, a valve rod 7 and a fixing stud 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a sectional view of the middle of a sanitary ball valve according to the present invention.

The utility model provides a sanitary ball valve, which is structurally shown in figure 1 and comprises an intermediate valve body 2, a first valve body 1 and a second valve body 3. Wherein, middle valve body 2 middle has the mounting hole, and valve ball 6 sets up in the mounting hole, and middle valve body 2 upper portion is equipped with the connecting hole, and valve rod 7 passes the connecting hole and links to each other with valve ball 6. First valve body 1 and second valve body 3 are located the both sides of middle valve body 2 respectively, and first valve body 1, second valve body 3 and valve ball 6 all have the passageway, and the terminal surface of first valve body 1 and second valve body 3 is laminated with the periphery at mounting hole both ends respectively to make the passageway of first valve body 1 and second valve body 3 be located the position corresponding with the mounting hole, rotate valve ball 6 and can make the passageway of valve ball 6 and the passageway intercommunication of first valve body 1, second valve body 3. Still be equipped with seal cover 4 in the mounting hole, the periphery at valve ball 6 is established to seal cover 4 cover, and the inside wall of seal cover 4 closely laminates with the lateral wall of valve ball 6, and the both sides terminal surface of seal cover 4 closely laminates with the terminal surface of first valve body 1 and second valve body 3 orientation middle valve body 2 respectively. The sealing sleeve 4 is provided with a through hole corresponding to the position of the connecting hole, and the valve rod 7 can be connected with the valve ball 6 through the through hole.

Optionally, as shown in fig. 1, the valve ball 6 is located in a sealing hole of the sealing sleeve 4, the middle part of the sealing hole has a larger diameter, and the two ends have smaller diameters. In order to facilitate the installation of the valve ball 6, the sealing sleeve 4 comprises a first sleeve body and a second sleeve body. The sealing sleeve 4 is split along the preset to form a first sleeve body and a second sleeve body, and the preset plane passes through the center of the valve ball 6. The preset plane is generally perpendicular to the axis of the mounting hole, but the user may select the position of the preset plane according to the needs, and the preset plane is not limited herein.

Optionally, the intermediate valve body 2, the first valve body 1 and the second valve body 3 are detachably connected through a fixing stud 8 and a fixing nut. Of course, the user can also set the first valve body 1 or the second valve body 3 and the intermediate valve body 2 as an integrally formed structural member according to the requirement.

Optionally, the end surfaces of the first valve body 1 and the second valve body 3 facing the middle valve body 2 are both provided with a connecting groove. The connecting groove is annular and is coaxial with the end surface where the connecting groove is located. The connecting groove is positioned on the outer side of the end surface where the connecting groove is positioned. The inner diameters of the two ends of the middle valve body 2 are larger than or equal to the diameters of the inner rings of the connecting grooves, the two ends of the middle valve body 2 are respectively inserted into the connecting grooves of the first valve body 1 and the second valve body 3, and the middle valve body 2, the first valve body 1 and the second valve body 3 are fixed through the fixing studs 8 and the fixing nuts.

Optionally, for further improving the sealing effect, the outer side wall of the sealing sleeve 4 is attached to the inner side wall of the mounting hole. Therefore, the inner side wall of the mounting hole, the outer side wall of the valve ball 6 and the end surfaces of the first valve body 1 and the second valve body 3 are tightly attached to the sealing sleeve 4. The sealing sleeve 4 completely fills the space between the mounting hole and the valve ball 6, further reducing the stagnation of the medium.

Optionally, the side wall of the mounting hole is provided with a sealing boss, the sealing boss is located in the middle of the mounting hole in the axial direction, and the sealing boss is arranged along the circumferential direction of the mounting hole. The outer side wall of the sealing sleeve 4 is provided with a sealing groove matched with the sealing boss. When the sealing sleeve 4 is installed, the sealing boss and the sealing groove are matched to limit the first sleeve body and the second sleeve body in the axial direction. In addition, the sealing boss and the sealing groove can also improve the sealing performance between the sealing sleeve 4 and the middle valve body 2.

Optionally, the sanitary ball valve further includes two annular valve seats 5, where the two valve seats 5 are a first valve seat and a second valve seat respectively, the first valve seat is located between the first valve body 1 and the valve ball 6, and the second valve seat is located between the second valve body 3 and the valve ball 6. The end faces of the first and second valve seats towards the intermediate valve body 2 each have a mounting groove in the periphery of the passage, in which the valve seat 5 is mounted. The side of the valve seat 5 facing the valve ball 6 is provided with an arc-shaped surface, and the first valve seat and the second valve seat apply pressure to the valve seat 5, so that the arc-shaped surface is tightly attached to the valve ball 6, and the sealing purpose is achieved.

Optionally, the inner diameter of the two ends of the sealing sleeve 4 is the smallest, the smallest inner diameter of the sealing sleeve 4 is equal to the outer diameter of the valve seat 5, and the inner diameter of the valve seat 5 is equal to the diameter of the passage in the valve ball 6. The periphery of the valve ball 6 is completely attached by the sealing sleeve 4 and the valve seat 5, and the possibility of medium retention is greatly reduced.

In the installation, can install middle valve body 2 in the spread groove of first valve body 1 earlier, then install first disk seat in the mounting groove, compress tightly first set in middle valve body 2 again. The valve ball 6 and valve stem 7 are then installed. And finally, a second sleeve body, a second valve seat and a second valve body 3 are sequentially arranged. In order to improve the sealing performance of the sanitary ball valve, sealing gaskets can be arranged on the end surfaces of the middle valve body 2 and the first valve body 1 and the second valve body 3. In addition, the sealing sleeve 4 and the valve seat 5 can be made of non-metal materials, and specific materials can refer to the prior art and are not described herein again.

In this embodiment, set up seal cover 4 in the sanitary-grade ball valve, seal cover 4 can cover the lateral wall of valve ball 6 completely with the cooperation of disk seat 5, forms full package structure, has showing the gap of having eliminated the periphery of valve ball 6, and then has prevented that the condition of medium leakage from taking place. Meanwhile, the retention of media is reduced, and the cleanliness of the channel and the sealing performance of the ball valve are improved. In addition, the sanitary ball valve is installed in a detachable mode, if the valve seat 5 is abraded or loses the sealing performance, the valve seat 5 can be independently replaced, and the maintenance cost of the sanitary ball valve is reduced.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The sanitary ball valve provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a sanitary-grade ball valve, its characterized in that includes middle valve body (2), is located first valve body (1) and second valve body (3) of middle valve body (2) both sides, the mounting hole has in the middle of middle valve body (2), be equipped with valve ball (6) in the mounting hole, first valve body (1) second valve body (3) and valve ball (6) all are equipped with the passageway, still be equipped with seal cover (4) in the mounting hole, the inside wall of seal cover (4) with the lateral wall of valve ball (6) closely laminates, the both sides terminal surface of seal cover (4) respectively with first valve body (1) with second valve body (3) orientation the terminal surface of middle valve body (2) closely laminates.

2. Sanitary ball valve according to claim 1, characterized in that said sealing sleeve (4) comprises a first sleeve body and a second sleeve body, both located on either side of a predetermined plane passing through the centre of said valve ball (6).

3. Sanitary ball valve according to claim 2, characterized in that the intermediate valve body (2), the first valve body (1) and the second valve body (3) are connected by means of a fixing stud (8) and a fixing nut.

4. Sanitary-grade ball valve according to claim 1, characterized in that the end faces of the first valve body (1) and the second valve body (3) facing the intermediate valve body (2) are provided with annular connecting grooves, the two ends of the intermediate valve body (2) being inserted into the connecting grooves of the first valve body (1) and the second valve body (3), respectively.

5. Sanitary ball valve according to claim 1, characterized in that the outer side wall of the sealing sleeve (4) is conformed to the inner side wall of the mounting hole.

6. The sanitary ball valve according to claim 5, wherein the side wall of the mounting hole has a sealing boss provided along a circumferential direction thereof, and the outer side wall of the sealing sleeve (4) has a sealing groove fitted with the sealing boss.

7. Sanitary-grade ball valve according to any one of claims 1 to 6, characterized in that it further comprises two annular valve seats (5), the end faces of the first valve body (1) and the second valve body (3) facing the intermediate valve body (2) having mounting grooves at the periphery of the passage, the valve seats (5) being mounted in the mounting grooves, the side of the valve seats (5) facing the valve ball (6) being provided with an arc-shaped face for abutting against the outer side wall of the valve ball (6).

8. Sanitary ball valve according to claim 7, characterized in that the minimum value of the inner diameter of the sealing sleeve (4) is equal to the outer diameter of the valve seat (5).