CN217898865U

CN217898865U - Novel corrosion-resistant ball valve of high leakproofness

Info

Publication number: CN217898865U
Application number: CN202221713327.XU
Authority: CN
Inventors: 吴青云
Original assignee: Nanjing Bokun Automation Equipment Co ltd
Current assignee: Nanjing Bokun Automation Equipment Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-25
Anticipated expiration: 2032-07-05

Abstract

The utility model discloses a novel corrosion-resistant ball valve of high leakproofness relates to the ball valve field, including casing, activity setting at the inside middle case of casing and be used for carrying out the seal structure sealed with the pipeline, two inside grooves have been seted up to the inside symmetry of casing, every the inside of inside groove is the fixed seal structure that is provided with all, seal structure is including fixed the sealing washer that sets up in the inside of inside groove, annular basin has been seted up to one side that the sealing washer closes on the case, the thread groove of continuity is seted up to the link inner wall of casing and the inner wall of sealing washer. The utility model, through the design of the sealing structure, the inner diameter of the inner groove is larger than the inner diameter of the pipe of the shell, so that the water pressure in the water tank is larger, and the sealing ring is pressed on the pipeline; meanwhile, the seal ring is in threaded connection with the pipeline, so that the seal between the seal ring and the pipeline is stronger; and the sealing ring is easier to deform at the thread groove and is more tightly pressed with the pipeline.

Description

Novel corrosion-resistant ball valve of high leakproofness

Technical Field

The utility model relates to a ball valve field, in particular to novel corrosion-resistant ball valve of high leakproofness.

Background

The ball valve is a valve which is a starting and closing part, is driven by a valve rod and rotates around the axis of the ball valve, and can also be used for regulating and controlling fluid. Existing ball valves are typically connected to the pipe by flanges or threads.

Between the ball valve that uses threaded connection and the pipeline, need rotate the valve rod when carrying out the ball valve regulation, long-term rotation valve rod or other external force influence back, can appear not hard up problem because of the uneven influence of atress between ball valve link and the pipeline, this can reduce leakproofness between the two, takes place the infiltration phenomenon.

Therefore, when the existing ball valve is used for a long time, the problem that the connecting end and the pipeline connecting part are loosened can occur, so that the sealing performance is reduced, and for this reason, a novel corrosion-resistant ball valve with high sealing performance is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a novel corrosion-resistant ball valve of high leakproofness, can effectively solve the current ball valve that provides in the background art when using for a long time, not hard up problem can appear in the link and the pipe connection department of existence, leads to the leakproofness to reduce.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel corrosion-resistant ball valve with high sealing performance comprises a shell, a valve core and a sealing structure, wherein the valve core is movably arranged in the middle of the inside of the shell, the sealing structure is used for sealing a pipeline, two inner grooves are symmetrically formed in the shell, and one sealing structure is fixedly arranged in each inner groove;

the sealing structure comprises a sealing ring fixedly arranged in the inner groove, an annular water tank is arranged on one side, close to the valve core, of the sealing ring, a continuous thread groove is formed in the inner wall of the connecting end of the shell and the inner wall of the sealing ring, the inner diameter of the sealing ring is the same as the inner diameter of the pipe of the shell, and the inner diameter of the inner groove is larger than the inner diameter of the pipe of the shell. During the use, will have the pipeline of assorted screw thread and be connected with the thread groove of casing link and the thread groove of sealing washer inner wall in proper order, fix on the casing. When water is introduced, the middle inside the shell and the inside of the pipeline are communicated with water flow with higher pressure, and because the inner diameter of the inner groove is larger than the inner diameter of the pipe of the shell, when the water flow passes through the inner groove and enters the pipeline inside the sealing ring, the flow speed is increased, the flow speed is higher, and the pressure is lower, so that the water pressure in the water tank is higher, and the water pressure closer to the pipeline is lower, so that the sealing ring can be pressed on the pipeline; meanwhile, the sealing ring is in threaded connection with the pipeline, so that the sealing property between the sealing ring and the pipeline is stronger; and because the inside thread groove of seting up of sealing washer for the sealing washer is thinner in thread groove department, takes place to warp more easily, not only makes under the water pressure effect inseparabler with the pipeline pressfitting, still when the pipeline takes place not hard up, the sealing washer takes place the deformation that agrees with mutually with pipeline rotation direction more easily simultaneously, makes sealing washer and pipeline directly be difficult to appear the clearance, makes the leak protection effect better. Therefore, the design greatly improves the sealing performance of the joint of the ball valve and the pipeline.

Preferably, the sealing structure further comprises a limiting ring integrally arranged inside one side of the sealing ring adjacent to the valve core. The spacing ring is convenient for carry on spacingly to the pipeline for the pipeline mouth of pipe can not pass the sealing washer, and spacing ring and pipeline mouth of pipe carry out the pressfitting simultaneously, are convenient for further improve the leakproofness.

Preferably, the inner part of the limiting ring is fixedly provided with a fixing ring. The fixing ring is convenient for avoiding the deformation of the limiting ring, so that the limiting effect on the pipeline is better.

Preferably, the longitudinal section of the fixing ring is of a rectangular structure. The limiting ring is convenient to uniformly support, so that the deformation resistance of the limiting ring is further enhanced.

Preferably, a tensioning ring for supporting the wall of the water tank is fixedly arranged at the opening of the water tank. Through tensioning the sealing washer for the outer wall of sealing washer and inside groove inner wall closely fix together, avoid long-term when using between the two to take place not hard up.

Preferably, an anti-corrosion rubber ring is fixedly arranged on the outer side of the tensioning ring, and the rubber ring and the inner wall of the water tank are fixedly arranged.

Preferably, the sealing ring is of a cylindrical structure overall. The sealing ring and the inner wall of the inner groove are tightly attached and fixed conveniently.

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

in the utility model, through the design of the sealing structure, the inner diameter of the inner groove is larger than the inner diameter of the pipe of the shell, when water flows through the inner groove and enters the pipeline inside the sealing ring, the flow velocity is increased, the flow velocity is higher, the pressure is lower, and thus, the water pressure in the water groove is higher, and the water pressure closer to the pipeline is lower, so that the sealing ring can be pressed on the pipeline; meanwhile, the sealing ring is in threaded connection with the pipeline, so that the sealing property between the sealing ring and the pipeline is stronger; and because the inside thread groove of seting up of sealing washer for the sealing washer is thinner in thread groove department, takes place to warp more easily, not only makes under the water pressure effect inseparabler with the pipeline pressfitting, still when the pipeline takes place not hard up, the sealing washer takes place the deformation that agrees with mutually with pipeline rotation direction more easily simultaneously, makes sealing washer and pipeline directly be difficult to appear the clearance, makes the leak protection effect better. Therefore, the design greatly improves the sealing performance of the joint of the ball valve and the pipeline.

Drawings

Fig. 1 is a front sectional view of a novel corrosion-resistant ball valve with high sealing performance;

FIG. 2 is a perspective view of a sealing ring of the novel corrosion-resistant ball valve with high sealing performance;

FIG. 3 is a side sectional view of a sealing ring of the novel corrosion-resistant ball valve with high sealing performance;

fig. 4 is a schematic view of a partial structure at a position a in fig. 3 of the novel corrosion-resistant ball valve with high sealing performance according to the present invention;

fig. 5 is a perspective view of the novel corrosion-resistant ball valve with high sealing performance.

In the figure: 1. a housing; 2. a valve core; 3. an inner tank; 4. a seal ring; 5. a water tank; 6. a thread groove; 7. a limiting ring; 8. a fixing ring; 9. a tension ring; 10. and (6) a rubber ring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the 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" and "second" 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," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; 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.

Referring to fig. 1-5, the utility model relates to a novel corrosion-resistant ball valve with high sealing performance, which comprises a shell 1, a valve core 2 movably arranged in the middle of the inside of the shell 1, and a sealing structure for sealing with a pipeline, wherein two inner grooves 3 are symmetrically arranged in the shell 1, and a sealing structure is fixedly arranged in each inner groove 3;

the sealing structure comprises a sealing ring 4 fixedly arranged in an inner groove 3, an annular water tank 5 is arranged on one side, close to the valve core 2, of the sealing ring 4, a continuous thread groove 6 is formed in the inner wall of the connecting end of the shell 1 and the inner wall of the sealing ring 4, the inner diameter of the sealing ring 4 is the same as the inner diameter of the pipe of the shell 1, and the inner diameter of the inner groove 3 is larger than the inner diameter of the pipe of the shell 1. When in use, a pipeline with matched threads is sequentially connected with the thread groove 6 at the connecting end of the shell 1 and the thread groove 6 on the inner wall of the sealing ring 4 and is fixed on the shell 1. When water is introduced, the middle inside the shell 1 and the inside of the pipeline are communicated with water flow with higher pressure, and because the inner diameter of the inner groove 3 is larger than the inner diameter of the pipeline of the shell 1, when the water flow passes through the inner groove 3 and enters the pipeline inside the sealing ring 4, the flow rate is increased, the flow rate is higher, and the pressure intensity is lower, so that the water pressure in the water tank 5 is higher, and the water pressure closer to the pipeline is lower, so that the sealing ring 4 can be pressed on the pipeline; meanwhile, the sealing ring 4 is in threaded connection with the pipeline, so that the sealing property between the sealing ring 4 and the pipeline is stronger; and because the thread groove 6 is seted up to inside the sealing washer 4 for the sealing washer 4 is thinner in thread groove 6 department, takes place to warp more easily, not only makes under the water pressure effect inseparabler with the pipeline pressfitting, still takes place not hard up when the pipeline takes place simultaneously, and the deformation that agrees with mutually with pipeline rotation direction takes place more easily for sealing washer 4 and pipeline are direct be difficult to appear the clearance, make the leak protection effect better. Therefore, the design greatly improves the sealing performance of the joint of the ball valve and the pipeline. The device is made of corrosion-resistant materials and has strong corrosion resistance.

The sealing structure further comprises a limiting ring 7 which is integrally arranged inside one side of the sealing ring 4 close to the valve core 2. The spacing ring 7 is convenient for carry on spacingly to the pipeline for the pipeline mouth of pipe can not pass sealing washer 4, and spacing ring 7 and the pipeline mouth of pipe carry out the pressfitting simultaneously, are convenient for further improve the leakproofness.

Wherein, the inside of the spacing ring 7 is fixedly provided with a fixing ring 8. The fixing ring 8 is convenient for avoiding the deformation of the limiting ring 7, so that the limiting effect on the pipeline is better.

Wherein, the longitudinal section of the fixing ring 8 is a rectangular structure. The limiting ring 7 is conveniently and uniformly supported, so that the deformation prevention capacity of the limiting ring 7 is further enhanced.

Wherein, a tensioning ring 9 used for supporting the wall of the water tank 5 is fixedly arranged at the opening of the water tank 5. Through tensioning sealing washer 4 for the outer wall of sealing washer 4 and the 3 inner walls of inside groove are closely fixed together, and it is not hard up to take place between the two when avoiding long-term the use.

Wherein, the outer side of the tensioning ring 9 is fixedly provided with an anti-corrosion rubber ring 10, and the rubber ring 10 and the inner wall of the water tank 5 are fixedly arranged.

Wherein, the whole sealing ring 4 is of a cylindrical structure. The sealing ring 4 and the inner wall of the inner groove 3 are tightly attached and fixed.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention 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

1. The utility model provides a novel corrosion-resistant ball valve of high leakproofness which characterized in that: the pipeline sealing device comprises a shell (1), a valve core (2) movably arranged in the middle of the inside of the shell (1) and a sealing structure used for sealing with a pipeline, wherein two inner grooves (3) are symmetrically formed in the shell (1), and a sealing structure is fixedly arranged in each inner groove (3);

the sealing structure comprises a sealing ring (4) fixedly arranged in an inner groove (3), an annular water tank (5) is arranged on one side, close to the valve core (2), of the sealing ring (4), a continuous thread groove (6) is formed in the inner wall of the connecting end of the shell (1) and the inner wall of the sealing ring (4), the inner diameter of the sealing ring (4) is the same as the inner diameter of the pipe of the shell (1), and the inner diameter of the inner groove (3) is larger than the inner diameter of the pipe of the shell (1).

2. The novel corrosion-resistant ball valve with high sealing performance as claimed in claim 1, wherein: the sealing structure further comprises a limiting ring (7) which is integrally arranged at the inner part of one side of the sealing ring (4) close to the valve core (2).

3. The novel corrosion-resistant ball valve with high sealing performance as claimed in claim 2, wherein: the inside of spacing ring (7) is fixed and is provided with solid fixed ring (8).

4. The novel corrosion-resistant ball valve with high sealing performance according to claim 3, wherein: the longitudinal section of the fixing ring (8) is of a rectangular structure.

5. The novel corrosion-resistant ball valve with high sealing performance according to claim 1, is characterized in that: and a tensioning ring (9) for supporting the wall of the water tank (5) is fixedly arranged at the opening of the water tank (5).

6. The novel corrosion-resistant ball valve with high sealing performance as claimed in claim 5, wherein: an anti-corrosion rubber ring (10) is fixedly arranged on the outer side of the tensioning ring (9), and the rubber ring (10) and the inner wall of the water tank (5) are fixedly arranged.

7. The novel corrosion-resistant ball valve with high sealing performance according to claim 1, is characterized in that: the whole sealing ring (4) is of a cylindrical structure.