High-pressure ball valve

Abstract

The utility model discloses a high-pressure ball valve which comprises a valve body, a valve element is rotatably connected in the valve body, a valve rod is rotatably connected in the valve body, the bottom end of the valve rod is fixedly connected with the outer side wall of the valve element, a rotating handle is fixed to the top of the valve element, a sealing mechanism is arranged in the valve element, and the rotating handle is fixedly connected with the rotating handle. And the sealing mechanism comprises two sealing rings. According to the high-pressure ball valve, when the valve is closed, a valve element is rotated, the valve element drives an ejector rod, a fixing ring and a rotating inclined block to rotate, the rotating inclined block abuts against a fixing inclined block so that the rotating inclined block can move upwards, the rotating inclined block drives the fixing ring and the ejector rod to move upwards, the ejector rod extrudes a connecting rod, and the connecting rod pushes a moving rod and a pressing ring to move; in this way, the pressing ring is inserted into the extrusion groove to enable the sealing ring to expand outwards, and therefore the sealing performance can be improved when the valve is closed.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically a high-pressure ball valve. Background Technology

[0002] Ball valves are widely used in various special pipeline systems in industries such as petroleum, chemical, metallurgy, and power plants. Fixed ball valves are suitable for high-pressure media conditions. Among them, ceramic ball valves have extremely high wear resistance, corrosion resistance, and erosion resistance, as well as good thermal insulation and low thermal expansion.

[0003] A search revealed an existing patent (publication number: CN218408601U) that discloses a high-pressure fixed ceramic ball valve body, comprising a ball body; a rotating rod is fixedly connected to the top of the ball body, the ball body is disposed inside the ceramic ball valve seat, and the rotating rod is located outside the ceramic ball valve seat; through the structural design of the injection mechanism, when it is necessary to clean the dirt on the inner wall of the ball valve and the outer wall of the ball, the sealing assembly is first released, the rotating block is pulled upward, the rotating block drives the moving column and connecting plate to move upward, the connecting plate drives the cover plate to move upward, so that the positioning hole is separated from the positioning column, the rotating block is rotated, the cover plate rotates, the first injection channel leaks out, and cleaning agent is injected into the first injection channel. The cleaning agent reaches the surface of the ball body through the first injection channel and the second injection channel, and flows to the inner wall of the valve seat. The cleaning agent can dissolve the attached dirt, realizing a relatively convenient function of removing dirt.

[0004] It facilitates the entry of cleaning agent into the valve body through a channel for cleaning the valve body's temporal region. However, it has shortcomings. It lacks a drainage mechanism, making it difficult to drain the cleaning fluid after cleaning. Furthermore, the valve core and valve body of the ball valve frequently rub against each other when the valve is closed, which can easily lead to wear and a decrease in its sealing performance, resulting in the possibility of medium flow when the valve is closed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a high-pressure ball valve that solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure ball valve, comprising a valve body, a valve core rotatably connected inside the valve body, a valve stem rotatably connected inside the valve body, the bottom end of the valve stem being fixedly connected to the outer side wall of the valve core, a handle fixedly attached to the top of the valve core, a sealing mechanism provided inside the valve core, the sealing mechanism including two sealing rings, two fixing grooves formed on the outer side wall of the valve core, and sliding grooves formed on opposite sides of the two fixing grooves, the sealing rings being fixed inside the fixing grooves, and the two sealing rings being fixed inside the fixing grooves. Each of the two valve cores has a compression groove on its opposite sides. A pressure ring is slidably connected inside the groove. Two moving rods are slidably connected inside the valve core. The opposite sides of the two moving rods are fixedly connected to the opposite sides of the two pressure rings. A top rod is slidably connected to the lower part of the valve core. A connecting rod is rotatably connected between the top of the top rod and the opposite side of the moving rod. A circular hole is opened on the inner side wall of the valve body. Two fixed inclined blocks are fixed on the lower inner surface of the circular hole. A fixed ring is fixed on the outer side wall of the top rod. Two rotating inclined blocks are fixed at the bottom of the fixed ring.

[0007] Preferably, the valve body has an internal cleaning mechanism, which includes multiple sealing screws and multiple threaded holes on the inner sidewall of the valve body, with the sealing screws and the threaded holes being screwed together.

[0008] Preferably, the outer wall of the valve body has multiple sealing holes, the threaded hole and the sealing hole are connected, a ring is sleeved on the outer side of the sealing screw, and a sealing ring is fixed on the outer side of the sealing screw on the side of the ring near the threaded hole.

[0009] Preferably, both the sealing ring and the sealing collar are made of silicone.

[0010] Preferably, the outer wall of the sealing screw is integrally formed with anti-slip texture.

[0011] Preferably, tension springs are fixed to opposite sides of both pressure rings, and the other end of each tension spring is fixedly connected to the slide groove.

[0012] Beneficial effects

[0013] This invention provides a high-pressure ball valve. Compared with the prior art, it has the following advantages:

[0014] 1. This high-pressure ball valve, through the setting of a sealing mechanism, when the valve is closed, the valve core is rotated, and the valve core rotates along with the push rod, the fixed ring and the rotating tilting block. The rotating tilting block and the fixed tilting block abut against each other, causing the rotating tilting block to move upward. The rotating tilting block moves upward along with the fixed ring and the push rod. The push rod squeezes the connecting rod, and the connecting rod pushes the moving rod and the pressure ring to move. This causes the pressure ring to insert into the interior of the squeezing groove, causing the sealing ring to expand outward, which can increase the sealing performance when the valve is closed.

[0015] 2. This high-pressure ball valve features a convenient cleaning mechanism. By rotating the upper sealing screw, the sealing screw is separated from the valve body, allowing cleaning agent to be injected into the valve body. The cleaning agent cleans the dirt inside the valve core and valve body. After cleaning for a period of time, rotating the lower sealing screw allows the cleaning agent to be discharged from the lower threaded hole. This makes cleaning the inside of the valve body simple and convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a bottom view of the valve body in this utility model.

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A;

[0019] Figure 4 This is a bottom view of the cross-section of the valve core in this utility model;

[0020] Figure 5 This is a schematic diagram of the valve body in this utility model;

[0021] Figure 6 This is a side view of the sealing ring and pressure ring in this utility model.

[0022] Figure 7 This is a schematic diagram of the valve core in this utility model.

[0023] In the diagram: 1. Valve body; 2. Easy-cleaning mechanism; 3. Handle; 4. Valve stem; 5. Valve core; 6. Sealing mechanism; 7. Circular ring; 8. Sealing ring; 9. Sealing screw; 10. Top rod; 11. Circular hole; 12. Fixed tilting block; 13. Rotating tilting block; 14. Fixed ring; 15. Slide groove; 16. Sealing ring; 17. Tension spring; 18. Connecting rod; 19. Pressure ring; 20. Threaded hole; 21. Fixed groove; 22. Extrusion groove; 23. Sealing hole; 24. Moving rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-7 This utility model provides a technical solution: a high-pressure ball valve, including a valve body 1, a valve core 5 rotatably connected inside the valve body 1, a valve stem 4 rotatably connected inside the valve body 1, the bottom end of the valve stem 4 being fixedly connected to the outer side wall of the valve core 5, a handle 3 fixedly fixed to the top of the valve core 5, a sealing mechanism 6 provided inside the valve core 5, the sealing mechanism 6 including two sealing rings 16, two fixing grooves 21 opened on the outer side wall of the valve core 5, sliding grooves 15 opened on opposite sides of the two fixing grooves 21, the sealing rings 16 being fixed inside the fixing grooves 21, compression grooves 22 opened on opposite sides of the two sealing rings 16, a pressure ring 19 slidably connected inside the sliding grooves 15, and two moving rods slidably connected inside the valve core 5. 24. The opposite sides of the two moving rods 24 are fixedly connected to the opposite sides of the two pressure rings 19 respectively. The bottom of the valve core 5 is slidably connected to the top rod 10. The top of the top rod 10 is rotatably connected to the opposite side of the moving rod 24. The inner wall of the valve body 1 is provided with a circular hole 11. Two fixed inclined blocks 12 are fixed on the lower inner surface of the circular hole 11. The outer wall of the top rod 10 is fixed with a fixed ring 14. The bottom of the fixed ring 14 is fixed with two rotating inclined blocks 13. This can increase the sealing performance of the valve core 5 and the valve body 1. Tension springs 17 are fixed on the opposite sides of the two pressure rings 19. The other end of the tension spring 17 is fixedly connected to the slide groove 15. This can pull the pressure ring 19 back to its original position.

[0026] Furthermore, the valve body 1 is equipped with a convenient cleaning mechanism 2, which includes multiple sealing screws 9. The inner wall of the valve body 1 has multiple threaded holes 20, and the sealing screws 9 are screwed into the threaded holes 20, which allows for cleaning of the inside of the valve body 1. The outer wall of the valve body 1 has multiple sealing holes 23, and the threaded holes 20 and the sealing holes 23 are connected. A ring 7 is fitted on the outer side of the sealing screw 9, and a sealing ring 8 is fixed on the outer side of the sealing screw 9 on the side of the ring 7 near the threaded hole 20, which can seal the threaded hole 20. The sealing ring 8 and the sealing ring 16 are both made of silicone, which is non-toxic and non-polluting and will not affect the flowing medium. The outer wall of the sealing screw 9 is integrally formed with anti-slip texture, which makes it easy to rotate the sealing screw 9.

[0027] During operation, when the valve is closed, the handle 3 is turned, which rotates the valve stem 4, which in turn rotates the valve core 5. The valve core 5 rotates the push rod 10, the fixed ring 14, and the rotating tilting block 13. The rotating tilting block 13 and the fixed tilting block 12 abut against each other, causing the rotating tilting block 13 to move upward. The rotating tilting block 13, along with the fixed ring 14 and the push rod 10, moves upward. The push rod 10 presses against the connecting rod 18, which pushes the moving rod 24 and the pressure ring 19 to move. This causes the pressure ring 19 to insert into the compression groove 22, causing the sealing ring 16 to expand outward. The sealing ring 16 fits tightly against the inner wall of the valve body 1, thus increasing... The sealing between valve body 1 and valve core 5 prevents the medium from passing between them. When the valve is opened, the pressure ring 19 is pulled back to its original position by the tension spring 17, which prevents the pressure ring 19 from constantly squeezing the sealing ring 16 and increases the service life of the sealing ring 16. After the valve has been used for a long time, turn the upper sealing screw 9 to separate it from the valve body 1 and inject the cleaning agent into the inside of the valve body 1. The cleaning agent cleans the dirt inside the valve core 5 and valve body 1. After cleaning for a period of time, turn the lower sealing screw 9, and the cleaning agent will be discharged from the lower threaded hole 20. This makes cleaning the inside of the valve body 1 simple and convenient.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure ball valve, comprising a valve body (1), characterized in that: A valve core (5) is rotatably connected inside the valve body (1), and a valve stem (4) is rotatably connected inside the valve body (1). The bottom end of the valve stem (4) is fixedly connected to the outer wall of the valve core (5). A handle (3) is fixedly fixed to the top of the valve core (5). A sealing mechanism (6) is provided inside the valve core (5). The sealing mechanism (6) includes two sealing rings (16). Two fixing grooves (21) are opened on the outer wall of the valve core (5). A sliding groove (15) is opened on the opposite side of the two fixing grooves (21). The sealing rings (16) are fixed inside the fixing grooves (21). A compression groove (22) is opened on the opposite side of the two sealing rings (16). The sliding groove (15) The valve core (5) is internally slidably connected to a pressure ring (19). The valve core (5) is internally slidably connected to two moving rods (24). The opposite sides of the two moving rods (24) are fixedly connected to the opposite sides of the two pressure rings (19). The valve core (5) is internally slidably connected to a top rod (10). The top of the top rod (10) is rotatably connected to the opposite side of the moving rod (24). The valve body (1) has a circular hole (11) on its inner sidewall. The inner lower surface of the circular hole (11) is fixed with two fixed inclined blocks (12). The outer sidewall of the top rod (10) is fixed with a fixed ring (14). The bottom of the fixed ring (14) is fixed with two rotating inclined blocks (13).

2. The high-pressure ball valve according to claim 1, characterized in that: The valve body (1) is provided with a convenient cleaning mechanism (2) inside. The convenient cleaning mechanism (2) includes multiple sealing screws (9). Multiple threaded holes (20) are opened on the inner side wall of the valve body (1). The sealing screws (9) and the threaded holes (20) are screwed together.

3. A high-pressure ball valve according to claim 2, characterized in that: The outer wall of the valve body (1) is provided with a plurality of sealing holes (23). The threaded hole (20) and the sealing hole (23) are connected. A ring (7) is sleeved on the outer side of the sealing screw (9). A sealing ring (8) is fixed on the outer side of the sealing screw (9) on the side of the ring (7) close to the threaded hole (20).

4. A high-pressure ball valve according to claim 3, characterized in that: Both the sealing ring (8) and the sealing ring (16) are made of silicone.

5. A high-pressure ball valve according to claim 4, characterized in that: The outer wall of the sealing screw (9) is integrally formed with anti-slip texture.

6. A high-pressure ball valve according to claim 5, characterized in that: Tension springs (17) are fixed to opposite sides of the two pressure rings (19), and the other end of the tension springs (17) is fixedly connected to the slide groove (15).

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