Direction-adjustable one-way valve

Abstract

The direction-adjustable one-way valve comprises a valve body, hidden grooves are formed in the top and the bottom of the valve body, a valve cavity is formed between the two hidden grooves, and the valve cavity is symmetrically in threaded connection with an upper mounting nut and a lower mounting nut; and a sealing driving assembly is mounted on the upper mounting nut. According to the one-way valve, through the arrangement of the upper mounting nut, the hidden groove, the valve cavity, the conical groove, the one-way ball and the sealing driving assembly, the position of the arc-shaped fork can be switched according to the flowing direction of fluid, and flow direction sealing is restrained through the arc-shaped fork, so that the purpose of replacing the using direction of the one-way valve is achieved, and it is guaranteed that the fluid can normally circulate; the one-way ball and the conical groove on the other side can be driven by the force of fluid to form sealing, so that backflow of the fluid is prevented, only one one-way valve and one pipeline need to be designed for fluid pipelines needing to walk in two directions, and structural complexity and construction difficulty are reduced.

Description

Technical Field

[0001] This invention relates to the field of check valve technology, and more particularly to an adjustable check valve. Background Technology

[0002] A check valve, also known as a non-return valve, is a valve that controls the unidirectional flow of fluid. It allows fluid to flow in only one direction while preventing it from flowing in the other. Check valves play a crucial role in many systems because they prevent reverse flow, thus protecting the system from back pressure and fluid backflow. In the semiconductor industry, check valves are widely used in gas and liquid transport and distribution systems to ensure fluid flows in a specified direction, guaranteeing smooth manufacturing processes. Based on their structure and function, check valves can be divided into two types: straight-through and angle. Straight-through check valves have a simpler structure and lower fluid resistance, but the direction of fluid flow is not as intuitive. Angle check valves have fluid flow perpendicular to the pipe axis, resulting in higher fluid resistance, but the direction of fluid flow is more intuitive.

[0003] A common problem in production or scientific research is that when fluid needs to flow in two directions in the same pipeline, two check valves need to be installed to prevent backflow, which makes the pipeline structure very complex. This is mainly because existing check valves can only operate in one direction, that is, the fluid can only flow from left to right or move from right to left, and cannot be interchanged, making the pipeline structure very complex and assembly very inconvenient. Therefore, an adjustable directional check valve is proposed. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and to propose an adjustable one-way valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable one-way valve, comprising a valve body, wherein hidden grooves are provided at the top and bottom of the valve body, and a valve cavity is provided between the two hidden grooves. The valve cavity is symmetrically threaded with an upper mounting nut and a lower mounting nut; a sealing drive assembly is mounted on the upper mounting nut, and an arc-shaped fork is fixedly mounted on the movable end of the sealing drive assembly, and the arc-shaped fork is located inside the valve cavity; a one-way bead is provided inside the valve cavity, and conical grooves are provided on both inner walls of the valve cavity, and the conical grooves match the one-way bead; both conical grooves are provided with through holes, and the through holes extend to the outer wall of the valve body; connecting pipes are fixedly connected to both sides of the outer surface of the valve body, and the connecting pipes match the through holes.

[0006] Furthermore, the sealing drive assembly includes a knob positioned above the upper mounting nut. A valve stem is fixedly connected to the top of the knob, extending through the top of the upper mounting nut and downwards, where it is fixedly connected to the arc-shaped forks. The knob is connected to the valve stem, and rotating the knob can drive the two arc-shaped forks to rotate. The design of the arc-shaped forks allows them to control the one-way beads to contact the conical surface under the action of the fluid, forming a sealing effect and preventing the fluid from flowing backwards. This operation method simplifies manual operation and improves work efficiency.

[0007] Furthermore, a sealing nut is rotatably connected to the outer surface of the valve stem, and the sealing nut is threadedly connected to the upper mounting nut. The bottom of the sealing nut and the inner wall of the upper mounting nut abut against a sealing packing, and the sealing packing is slidably sleeved on the outer surface of the valve stem. The sealing packing on the outer surface of the valve stem, the sealing nut and the sealing packing cooperate to enhance the sealing performance of the valve, and can effectively prevent fluid leakage under pressure or reverse flow.

[0008] Furthermore, an indicator arrow is provided on the top edge of the knob to indicate direction and avoid operational errors.

[0009] Furthermore, the valve body and the two connecting pipes are designed as a single unit. This integrated design reduces the number of processing steps between the valve body and the connecting pipes, while also ensuring the connection strength between the connecting pipes and the valve body.

[0010] Furthermore, a drive block is fixedly sleeved on the outer surface of the upper mounting nut, and a drive groove is provided at the bottom of the lower mounting nut, which facilitates the use of an external wrench to drive the upper and lower mounting nuts to rotate.

[0011] Furthermore, both the upper and lower mounting nuts are fixedly fitted with sealing rings on their outer surfaces, and the sealing rings abut against the inner wall of the concealed groove. The sealing rings ensure the sealing between the upper and lower mounting nuts and the valve body, further enhancing the valve's sealing performance and effectively preventing fluid leakage under pressure or reverse flow.

[0012] Furthermore, threaded interfaces are provided on one side of the inner wall of both connecting pipes, which enhances the stability of the connection between the valve and other equipment and pipelines.

[0013] The beneficial effects of this invention are:

[0014] In use, this invention provides an adjustable one-way valve. Through the design of an upper mounting nut, a concealed groove, a valve chamber, a conical groove, a one-way bead, and a sealing drive assembly, the position of the arc-shaped fork can be switched according to the fluid flow direction. The arc-shaped fork inhibits flow towards the seal, thereby achieving the purpose of changing the direction of use of the one-way valve and ensuring normal fluid flow. When the fluid attempts to flow in the opposite direction, the force of the fluid will cause the one-way bead to form a seal with the conical groove on the other side, thus preventing backflow. For fluid pipelines requiring flow in two directions, only one one-way valve and one pipeline need to be designed, reducing structural complexity and construction difficulty. Attached Figure Description

[0015] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0016] Figure 1 : A perspective view of the present invention;

[0017] Figure 2 : A cross-sectional view of the present invention;

[0018] Figure 3 : Schematic diagram of the connection between the arc-shaped fork and the valve column of the present invention;

[0019] Figure 4 : A diagram showing the fluid flow from left to right in this invention;

[0020] Figure 5 The fluid flow diagram of the present invention is shown from right to left.

[0021] The attached figures are labeled as follows:

[0022] 1. Valve body; 2. Upper mounting nut; 3. Knob; 4. Indicator arrow; 5. Connecting pipe; 6. Valve stem; 7. Sealing nut; 8. Sealing packing; 9. Drive block; 10. Sealing ring; 11. Tapered groove; 12. Threaded interface; 13. Valve cavity; 14. Lower mounting nut; 15. Drive groove; 16. One-way ball; 17. Concealed groove; 18. Through hole; 19. Arc fork. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 5 As shown, an adjustable one-way valve is disclosed, comprising a valve body 1. Hidden grooves 17 are provided at both the top and bottom of the valve body 1, and a valve cavity 13 is formed between the two hidden grooves 17. An upper mounting nut 2 and a lower mounting nut 14 are symmetrically threaded onto the valve cavity 13. A drive block 9 is fixedly sleeved on the outer surface of the upper mounting nut 2, and a drive groove 15 is provided at the bottom of the lower mounting nut 14. Sealing rings 10 are fixedly sleeved on the outer surfaces of both the upper mounting nut 2 and the lower mounting nut 14, and the sealing rings 10 abut against the inner wall of the hidden grooves 17. The arrangement of the upper mounting nut 2 and the lower mounting nut 14 facilitates the maintenance and repair of the one-way valve. Simultaneously, the sealing rings 10 ensure the sealing between the upper mounting nut 2, the lower mounting nut 14, and the valve body 1, further enhancing the sealing performance of the one-way valve and effectively preventing leakage of fluid under pressure or reverse flow.

[0025] A sealing drive assembly is mounted on the upper mounting nut 2. An arc-shaped fork 19 is fixedly mounted on the movable end of the sealing drive assembly, and the arc-shaped fork 19 is located inside the valve cavity 13. The sealing drive assembly includes a knob 3, which is positioned above the upper mounting nut 2. A valve stem 6 is fixedly connected to the top of the knob 3, extending through the top of the upper mounting nut 2 and downwards, and is fixedly connected to the arc-shaped fork 19. A sealing nut 7 is rotatably connected to the outer surface of the valve stem 6, and the sealing nut 7 is threadedly connected to the upper mounting nut 2. The bottom of the sealing nut 7 is connected to the inner surface of the upper mounting nut 2. The walls are abutted together by sealing packing 8, and sealing packing 8 is slidably sleeved on the outer surface of valve column 6. The top edge of knob 3 is provided with an indicator arrow 4, which can switch the position of arc fork 19 according to the flow direction of fluid. Rotating knob 3 drives valve column 6 to rotate, and valve column 6 reaches the arc fork 19 to rotate. The indicator arrow 4 is used to determine whether arc fork 19 has moved to the set position. Sealing nut 7 cooperates with sealing packing 8 to ensure the sealing of the connection between valve column 6 and upper mounting nut 2, which can effectively prevent fluid leakage under pressure or reverse flow.

[0026] The valve cavity 13 is provided with a one-way bead 16 on the inner side. Both inner walls of the valve cavity 13 are provided with conical grooves 11, and the conical grooves 11 match the one-way bead 16. Both conical grooves 11 are provided with through holes 18, and the through holes 18 extend to the outer wall of the valve body 1. The design of the one-way bead 16 is carefully considered so that it moves with the flow of fluid inside the valve cavity 13, so that it can form a sealing structure by tightly contacting the inner wall of the conical groove 11 when needed.

[0027] Both sides of the outer surface of the valve body 1 are fixedly connected to connecting pipes 5, and the connecting pipes 5 are matched with the through holes 18. The valve body 1 and the two connecting pipes 5 are integrated. The inner wall of one side of the two connecting pipes 5 is provided with threaded interfaces 12. This design allows the one-way valve to be easily connected to pipes and equipment of various sizes and specifications.

[0028] Working principle: In use, first connect to the external pipe or equipment through the threaded interface 12 on the connecting pipe 5. Then, switch the position of the arc fork 19 according to the flow direction of the fluid. Rotate the knob 3, and the knob 3 drives the valve column 6 to rotate. The valve column 6 reaches the arc fork 19. The indicator arrow 4 indicates whether the arc fork 19 has moved to the set position. When the fluid is transported, the arc fork 19 inhibits the one-way bead 16 from moving in the direction of the fluid, thereby avoiding flow direction sealing and ensuring normal fluid flow. When the fluid attempts to flow in the opposite direction, the force of the fluid will drive the one-way bead 16 to form a seal with the conical groove 11 on the other side, thereby preventing the fluid from flowing back.

[0029] 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 any specific implementation. 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 adjustable one-way valve, comprising a valve body (1), characterized in that: The valve body (1) has a hidden groove (17) at the top and bottom, and a valve cavity (13) is formed between the two hidden grooves (17). The valve cavity (13) is symmetrically threaded with an upper mounting nut (2) and a lower mounting nut (14). The upper mounting nut (2) is equipped with a sealing drive assembly, and the movable end of the sealing drive assembly is fixedly equipped with an arc-shaped fork (19), and the arc-shaped fork (19) is located inside the valve cavity (13); The valve cavity (13) is provided with a one-way bead (16) on the inner side. Both sides of the valve cavity (13) are provided with conical grooves (11), and the conical grooves (11) match the one-way bead (16). Both conical grooves (11) are provided with through holes (18), and the through holes (18) extend to the outer wall of the valve body (1). Both sides of the outer surface of the valve body (1) are fixedly connected to connecting pipes (5), and the connecting pipes (5) are matched with the through holes (18).

2. The adjustable one-way valve according to claim 1, characterized in that: The sealing drive assembly includes a knob (3) which is positioned above the upper mounting nut (2). A valve stem (6) is fixedly connected to the top of the knob (3), and the valve stem (6) extends through the top of the upper mounting nut (2) to the bottom and is fixedly connected to the arc-shaped fork (19).

3. The adjustable one-way valve according to claim 2, characterized in that: A sealing nut (7) is rotatably connected to the outer surface of the valve stem (6), and the sealing nut (7) is threadedly connected to the upper mounting nut (2). A sealing packing (8) is abutted between the bottom of the sealing nut (7) and the inner wall of the upper mounting nut (2), and the sealing packing (8) is slidably sleeved on the outer surface of the valve stem (6).

4. An adjustable one-way valve according to claim 2, characterized in that: The knob (3) has an indicator arrow (4) on one side of its top edge.

5. An adjustable one-way valve according to claim 1, characterized in that: The valve body (1) and the two connecting pipes (5) are designed as a single unit.

6. An adjustable one-way valve according to claim 1, characterized in that: The upper mounting nut (2) has a drive block (9) fixedly sleeved on its outer surface, and the lower mounting nut (14) has a drive groove (15) at its bottom.

7. An adjustable one-way valve according to claim 1, characterized in that: Both the upper mounting nut (2) and the lower mounting nut (14) have sealing rings (10) fixedly fitted on their outer surfaces, and the sealing rings (10) abut against the inner wall of the hidden groove (17).

8. An adjustable one-way valve according to claim 1, characterized in that: Both of the connecting pipes (5) have threaded interfaces (12) on one side of their inner walls.

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