An ultrahigh pressure valve assembly

Abstract

The application discloses a kind of ultrahigh pressure valve assemblies, it is related to valve technical field.The application includes valve body, fluid passage is opened in valve body, valve stem is rotationally connected in valve body, the bottom end of valve stem is fixedly connected with sphere;Two sealing washers, two sealing washers are respectively arranged on the two sides of sphere to seal sphere;Two groups of sealing assemblies, two groups of sealing assemblies are arranged on the two sides in valve body to drive two sealing washers to seal sphere;Multiple groups of fluid extrusion mechanisms, multiple groups of fluid extrusion mechanisms are all arranged in valve body to increase the sealing property of sealing washer by fluid pressure;Opening and closing mechanism, opening and closing mechanism is arranged in valve body to open or close fluid extrusion mechanism, opening and closing mechanism moves with the opening and closing of sphere.The application avoids the situation that sealing is not firm between sealing washer and sphere caused by high-pressure fluid impact, effectively guarantees the sealing property of device.

Description

Technical Field

[0001] This invention belongs to the field of valve technology, and in particular relates to an ultra-high pressure valve assembly. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters of the transported medium. Based on their function, they can be classified as shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid transport systems, possessing functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or overflow pressure relief.

[0003] A search revealed that patent CN210423785U discloses a high-pressure stainless steel ball valve, comprising a valve body with an inlet pipe and an outlet pipe installed on both sides. A ball is installed inside the valve body, and sealing rings are fitted at the four corners of the ball. Fixed rods are fixedly installed on the top and bottom sides of the valve body, with one end of each fixed rod extending into the valve body. A cavity is formed on the fixed rod, and a lead screw is installed vertically inside the cavity. The end of the lead screw near the ball is rotatably mounted on the inner wall of the cavity near the ball. A trapezoidal block is threaded onto the lead screw, and crossbars are provided on both sides of the trapezoidal block. Through holes are formed on both inner walls of the cavity, and the through holes communicate with the inside of the valve body. When the valve in this patent is used to cut off high-pressure fluid, the impact of excessively high fluid pressure may cause a decrease in the valve's sealing performance, thereby losing the valve's sealing ability and making it inconvenient to shut off the fluid medium. Summary of the Invention

[0004] The purpose of this invention is to provide an ultra-high pressure valve assembly and its usage method. This technical solution avoids the situation where the sealing gasket and the ball are not properly sealed due to the impact of high pressure fluid, effectively ensuring the sealing performance of the device and solving the existing technical problems.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] An ultra-high pressure valve assembly includes a valve body with a fluid passage inside. A valve stem is rotatably connected inside the valve body, and a ball is fixedly connected to the bottom end of the valve stem. Two sealing gaskets are respectively disposed on both sides of the ball to seal it. Two sets of sealing assemblies are disposed on both sides of the valve body to drive the two sealing gaskets to seal the ball. Multiple fluid squeezing mechanisms are disposed within the valve body to increase the sealing performance of the sealing gaskets through fluid pressure. An opening and closing mechanism is disposed within the valve body to open or close the fluid squeezing mechanisms, and the opening and closing mechanism moves in sync with the opening and closing of the ball.

[0007] Optionally, each sealing assembly includes multiple sixth grooves formed in the valve body, each of the multiple sixth grooves having a slider slidably connected therein, each of the multiple sliders having a sealing spring fixedly connected to its side end, each of the multiple sealing springs being fixedly connected to the side wall of the multiple sixth grooves, each of the multiple sliders having a fourth connecting rod fixedly connected to its side end, and each of the multiple fourth connecting rods being fixedly connected to the side end of the sealing gasket.

[0008] Optionally, each fluid extrusion mechanism includes a second groove formed in the valve body, a fixing block fixedly connected in the second groove, a third groove communicating with the valve body in the fixing block, a sealing filler block slidably connected in the third groove to seal the communication between the third groove and the valve body, a fluid baffle for bearing fluid pressure in the sealing filler block, and a first connecting rod fixedly connected to the side end of the sealing filler block, the first connecting rod being fixedly connected to the side end of the sealing gasket.

[0009] Optionally, a fourth groove is provided in the sealing filler block, and two tension springs are fixedly connected in the fourth groove. Both tension springs are fixedly connected to the bottom end of the fluid baffle.

[0010] Optionally, the opening and closing mechanism includes a first recess formed in the valve body and communicating with the third recess.

[0011] The valve body has a first groove in which a trapezoidal extrusion block is slidably connected. An extrusion rod is fixedly connected to the bottom end of the fluid baffle. The extrusion rod moves downward through the side end of the sealing filler block and extends downward. The extrusion rod contacts the inclined surface of the trapezoidal extrusion block. An annular groove communicating with the first groove is provided inside the valve body. An annular plate is slidably connected inside the annular groove. A second connecting rod is fixedly connected between the trapezoidal extrusion block and the annular plate. A third connecting rod is fixedly connected to the other end of the annular plate. A fifth groove is provided inside the valve body. The third connecting rod moves outward through the fifth groove. A sliding plate is fixedly connected to the side end of the third connecting rod. A rotating shaft is fixedly connected to the bottom end of the sphere. The rotating shaft moves downward through the fifth groove. A paddle is fixedly connected to the circumferential surface of the rotating shaft. The protrusion of the paddle intermittently contacts the side end of the sliding plate.

[0012] Optionally, a return spring is fixedly connected to the side end of the slide plate, and the side end of the return spring is fixedly connected to the fifth groove.

[0013] Optionally, the bottom end of the extrusion rod is rounded.

[0014] Optionally, both of the sealing gaskets may have an air cavity.

[0015] The embodiments of the present invention have the following beneficial effects:

[0016] In this technical solution, a fluid compression mechanism uses high-pressure fluid to push the sealing gasket for sealing, compressing any gaps that may appear, so that the sealing gasket is tightly attached to the surface of the sphere. This ensures the sealing performance of the sealing gasket and avoids the situation where the sealing gasket and the sphere are not properly sealed due to the impact of high-pressure fluid. This effectively ensures the sealing performance of the device. At the same time, the opening and closing mechanism can be used to open and close the fluid compression mechanism. When the pipeline is normally open, the fluid compression mechanism can be concealed so that it does not interfere with the normal pressure of the fluid.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a cross-sectional view of the present invention when it is closed;

[0020] Figure 2 is a partial enlarged view of point A in Figure 1 of this invention;

[0021] Figure 3 is a partial enlarged view of point B in Figure 1 of this invention;

[0022] Figure 4 is a cross-sectional view of the present invention when it is in operation;

[0023] Figure 5 is a partial enlarged view of point C in Figure 4 of this invention;

[0024] Figure 6 is a front perspective view of the present invention;

[0025] Figure 7 is a first partial cross-sectional view of the present invention;

[0026] Figure 8 is a first partial perspective view of the present invention;

[0027] Figure 9 is a second partial perspective view of the present invention;

[0028] Figure 10 is a third partial perspective view of the present invention.

[0029] In the diagram: 1. Valve body; 2. Fluid passage; 3. Ball; 4. Valve stem; 6. Sealing gasket; 7. First groove; 8. Trapezoidal extrusion block; 9. Annular groove; 10. Second groove; 11. Fixing block; 12. Sealing filler block; 13. Third groove; 14. First connecting rod; 15. Air chamber; 16. Second connecting rod; 17. Third connecting rod; 18. Annular plate; 19. Extrusion rod; 20. Fluid baffle; 21. Fourth groove; 22. Tension spring; 23. Rotating shaft; 24. Fifth groove; 25. Paddle; 26. Slide plate; 27. Return spring; 28. Sixth groove; 29. ​​Sealing spring; 30. Slider; 31. Fourth connecting rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0032] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0033] Example 1

[0034] Please refer to Figures 1-10. This embodiment provides an ultra-high pressure valve assembly, including a valve body 1 with a fluid channel 2 inside. A valve stem 4 is rotatably connected inside the valve body 1, and a ball 3 is fixedly connected to the bottom end of the valve stem 4. Two sealing gaskets 6 are respectively disposed on both sides of the ball 3 to seal it. Two sets of sealing assemblies are disposed on both sides inside the valve body 1 to drive the two sealing gaskets 6 to seal the ball 3. Multiple fluid compression mechanisms are disposed inside the valve body 1 to increase the sealing performance of the sealing gaskets 6 through fluid pressure. An opening and closing mechanism is disposed inside the valve body 1 to open or close the fluid compression mechanisms, and the opening and closing mechanism moves with the opening and closing of the ball 3. The fluid compression mechanism uses high-pressure fluid to push the sealing gaskets 6 to seal, compressing any gaps and ensuring that the sealing gaskets 6 are tightly attached to the surface of the ball 3, thus guaranteeing the sealing performance of the sealing gaskets 6. Its sealing performance prevents high-pressure fluid impact.

[0035] This effectively ensures the sealing performance of the device, preventing the sealing gasket 6 and the ball 3 from becoming loose. At the same time, the opening and closing mechanism can be used to open and close the fluid squeezing mechanism, which can be concealed when the pipeline is normally open so as not to hinder the normal pressure of the fluid.

[0036] In one aspect of this embodiment, as shown in FIG2, each sealing assembly includes a plurality of sixth grooves 28 formed in the valve body 1. A slider 30 is slidably connected in each of the plurality of sixth grooves 28. A sealing spring 29 is fixedly connected to the side end of each of the plurality of sliders 30. The sealing springs 29 are respectively fixedly connected to the side wall of the plurality of sixth grooves 28. A fourth connecting rod 31 is fixedly connected to the side end of each of the plurality of sliders 30. The fourth connecting rod 31 is fixedly connected to the side end of the sealing gasket 6. The sealing gasket 6 is pushed to fit against the ball 3 by the elasticity of the sealing springs 29 to achieve sealing.

[0037] In one aspect of this embodiment, as shown in Figures 1-5, each fluid extrusion mechanism includes a second groove 10 formed within the valve body 1. A fixing block 11 is fixedly connected within the second groove 10. A third groove 13 communicating with the valve body 1 is formed within the fixing block 11. A sealing filler block 12 for sealing the communication between the third groove 13 and the valve body 1 is slidably connected within the third groove 13. A fluid baffle 20 for bearing fluid pressure is provided within the sealing filler block 12. A first connecting rod 14 is fixedly connected to the side end of the sealing filler block 12. The first connecting rod 14 is fixedly connected to the side end of the sealing gasket 6. The fluid baffle 20 protrudes upward to bear fluid pressure. The fluid baffle 20 is displaced under pressure, thereby causing the first connecting rod 14 to move through the sealing filler block 12. If there is a gap between the sealing gasket 6 and the ball 3, the sealing gasket 6 will be displaced due to the thrust of the first connecting rod 14. The sphere 3 is compressed and adhered to the body, thereby eliminating gaps and ensuring the device's airtightness.

[0038] Example 2

[0039] An improvement based on Embodiment 1: Referring to Figures 3-7, a fourth groove 21 is provided inside the sealing filler block 12. Two tension springs 22 are fixedly connected inside the fourth groove 21, and both tension springs 22 are fixed.

[0040] The opening and closing mechanism includes a first groove 7 connected to the bottom of the fluid baffle 20 and communicating with the third groove 13. A trapezoidal extrusion block 8 is slidably connected in the first groove 7. An extrusion rod 19 is fixedly connected to the bottom of the fluid baffle 20. The extrusion rod 19 moves downward through the side end of the sealing filler block 12 and extends downward. The extrusion rod 19 and the inclined surface of the trapezoidal extrusion block 8 are in contact. An annular groove 9 communicating with the first groove 7 is opened in the valve body 1. An annular plate 18 is slidably connected in the annular groove 9. A second connecting rod 16 is fixedly connected between the trapezoidal extrusion block 8 and the annular plate 18. A third connecting rod 17 is fixedly connected to the other end of the annular plate 18. A fifth groove 24 is opened in the valve body 1. The third connecting rod 17 moves outward through the fifth groove 24. A sliding plate 26 is fixedly connected to the side end of the third connecting rod 17. A rotating shaft 23 is fixedly connected to the bottom of the ball 3. The downward movement extends into the fifth groove 24. A lever 25 is fixedly connected to the circumferential surface of the rotating shaft 23. The protrusion of the lever 25 intermittently contacts the side end of the slide plate 26. A return spring 27 is fixedly connected to the side end of the slide plate 26, and the side end of the return spring 27 is fixedly connected to the fifth groove 24. In order not to affect the normal flow rate of the liquid in the valve when the valve is open, the elasticity of the tension spring 22 is used to return the fluid baffle 20 to the fourth groove 21, so that it loses its influence on the fluid pressure. At the same time, when the valve is closed, the valve stem 4 is turned to drive the ball 3 to rotate, canceling the connection between the opening of the ball 3 and the fluid channel 2. At this time, the ball 3 drives the rotating shaft 23 to rotate, and the rotating shaft 23 drives the lever 25 to rotate. The lever 25 rotates and squeezes the slide plate 26. After the slide plate 26 is squeezed, it drives the third connecting rod 17 to squeeze, and the third connecting rod 17 drives the annular plate 18 to move in position. The annular plate 18 pushes the trapezoidal extrusion block 8 to move in position via the second connecting rod 16. The trapezoidal extrusion block 8 moves in position to extrude the extrusion rod 19. The extrusion rod 19 is extruded and moves upward. The upward movement of the extrusion rod 19 causes the fluid baffle 20 to protrude upward to bear the fluid pressure. The state of the fluid baffle 20 can be determined according to the opening state of the valve.

[0041] Example 3

[0042] Improvement based on Embodiment 1: Referring to Figure 2, each of the two sealing gaskets 6 has an air cavity 15. When the air cavity 15 is compressed, the internal air is discharged, reducing the air pressure in the air cavity 15, thereby increasing the sealing performance of the sealing gasket 6 and the ball 3.

[0043] Working principle: When the valve is closed, turning the valve stem 4 causes the ball 3 to rotate, disconnecting the opening of the ball 3 from the fluid channel 2. At this time, the ball 3 drives the rotating shaft 23 to rotate, which in turn drives the paddle 25 to rotate. The paddle 25 then compresses the slide plate 26. This compression of the slide plate 26 causes the third connecting rod 17 to compress, which in turn moves the annular plate 18. The annular plate 18, through the second connecting rod 16, pushes the trapezoidal compression block 8 to move, compressing the compression rod 19. The compression rod 19, under pressure, moves upward, causing the fluid baffle 20 to protrude upward to withstand the fluid pressure. The fluid baffle 20, under pressure, displaces, which in turn, through the sealing filler block 12, drives the first connecting rod 14 to move. If there is a gap between the sealing gasket 6 and the ball 3... The thrust of the first connecting rod 14 causes the sealing gasket 6 to be squeezed and pressed against the ball 3, thereby eliminating the gap and ensuring the sealing of the device. When the valve is opened, the valve rod 4 is rotated in the opposite direction, the paddle 25 releases the pressure on the slide plate 26, and the return spring 27 pushes the slide plate 26 to reset, thereby resetting the trapezoidal extrusion block 8. After the trapezoidal extrusion block 8 is reset, the extrusion rod 19 loses pressure, and the fluid baffle 20 is pulled back into the fourth groove 21 by the tension spring 22, thus no longer being subjected to fluid pressure. At this time, the fluid flows unobstructed in the fluid channel 2.

[0044] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.

[0045] In the description of this specification, references are made to the terms "an embodiment", "example", "specific".

[0046] The description of "example" or similar terms means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An ultra-high pressure valve assembly, characterized in that, include: A valve body (1) is provided with a fluid passage (2) inside the valve body (1), and a valve stem (4) is rotatably connected inside the valve body (1). A ball (3) is fixedly connected to the bottom end of the valve stem (4). Two sealing gaskets (6) are respectively placed on both sides of the sphere (3) to seal the sphere (3); Two sets of sealing components are located on both sides inside the valve body (1) to drive two sealing gaskets (6) to seal the ball (3); Multiple fluid extrusion mechanisms are provided inside the valve body (1) to increase the sealing performance of the sealing gasket (6) through fluid pressure; The opening and closing mechanism is located inside the valve body (1) and is used to open or close the fluid squeezing mechanism. The opening and closing mechanism moves in accordance with the opening and closing of the ball (3). Each fluid extrusion mechanism includes a second groove (10) opened in the valve body (1), a fixing block (11) is fixedly connected in the second groove (10), a third groove (13) connected to the valve body (1) is opened in the fixing block (11), a sealing filling block (12) for sealing the communication between the third groove (13) and the valve body (1) is slidably connected in the third groove (13), a fluid baffle (20) for bearing fluid pressure is provided in the sealing filling block (12), a first connecting rod (14) is fixedly connected to the side end of the sealing filling block (12), and the first connecting rod (14) is fixedly connected to the side end of the sealing gasket (6); The sealing filler block (12) has a fourth groove (21) inside, and two tension springs (22) are fixedly connected inside the fourth groove (21). Both tension springs (22) are fixedly connected to the bottom end of the fluid baffle (20). The opening and closing mechanism includes a first groove (7) formed inside the valve body (1) and communicating with the third groove (13). A trapezoidal extrusion block (8) is slidably connected inside the first groove (7). An extrusion rod (19) is fixedly connected to the bottom end of the fluid baffle (20). The extrusion rod (19) moves downward through the side end of the sealing filler block (12) and extends downward. The extrusion rod (19) and the inclined surface of the trapezoidal extrusion block (8) are in contact. An annular groove (9) is formed inside the valve body (1) and communicating with the first groove (7). An annular plate (18) is slidably connected inside the annular groove (9). The trapezoidal extrusion block (8) and the annular plate (18) are connected to each other. A second connecting rod (16) is fixedly connected between the two ends. A third connecting rod (17) is fixedly connected to the other end of the annular plate (18). A fifth groove (24) is provided inside the valve body (1). The third connecting rod (17) moves outward and penetrates into the fifth groove (24). A sliding plate (26) is fixedly connected to the side end of the third connecting rod (17). A rotating shaft (23) is fixedly connected to the bottom end of the ball (3). The rotating shaft (23) moves downward and penetrates into the fifth groove (24). A paddle (25) is fixedly connected to the circumferential surface of the rotating shaft (23). The protrusion of the paddle (25) and the side end of the sliding plate (26) are in intermittent contact. A reset spring (27) is fixedly connected to the side end of the slide plate (26), and the side end of the reset spring (27) is fixedly connected to the fifth groove (24).

2. The ultra-high pressure valve assembly as described in claim 1, characterized in that, Each sealing assembly includes multiple sixth grooves (28) formed in the valve body (1), each of the multiple sixth grooves (28) is slidably connected to a slider (30), each of the multiple sliders (30) is fixedly connected to a sealing spring (29) at its side end, each of the multiple sealing springs (29) is fixedly connected to the side wall of the multiple sixth grooves (28), each of the multiple sliders (30) is fixedly connected to a fourth connecting rod (31), and each of the multiple fourth connecting rods (31) is fixedly connected to the side end of the sealing gasket (6).

3. The ultra-high pressure valve assembly as described in claim 1, characterized in that, The bottom end of the extrusion rod (19) is rounded.

4. An ultra-high pressure valve assembly as described in any one of claims 1-3, characterized in that, Both of the sealing gaskets (6) have air chambers (15) inside.

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