A water valve structure for pipeline fluid control

Abstract

The present invention relates to the technical field of valve structures, and in particular to a water valve structure for pipeline fluid control, comprising a valve body, two valve pipes and a spherical valve core, wherein the two valve pipes are connected and installed on the left and right sides of the valve body respectively, the two valve pipes are coaxial, the spherical valve core is rotatably installed in the valve body, and the spherical valve core is used to block a valve pipe; the newly designed water valve does not require an additional locking or fastening structure to maintain the closed state of the valve, which makes the structure of the entire valve device simpler, reduces the number and complexity of parts, and helps to reduce manufacturing costs and maintenance difficulties; when the valve is closed, the force of the water flow in the pipeline on the valve spherical surface can help maintain the closed state of the valve, rather than relying on external force or other mechanical locking devices. This design allows the valve to use its own fluid mechanics characteristics to achieve automatic closure, thereby improving the reliability and efficiency of the valve operation.

Description

Technical Field

[0001] The invention relates to the technical field of valve structures, and in particular to a water valve structure for controlling pipeline fluid. Background Art

[0002] With the acceleration of industrialization and the advancement of technology, higher requirements are placed on fluid control in pipeline systems. Modern industrial production not only pursues maximum efficiency, but also pays more and more attention to energy conservation, consumption reduction, environmental protection and emission reduction. This requires that the key components in the pipeline system - water valves, not only have good sealing performance, but also be able to operate stably for a long time under various working conditions, while minimizing resistance to fluid flow to ensure efficient operation of the system.

[0003] In response to the problems existing in traditional water valves, eccentric valves have emerged as a new design concept. The core idea of ​​the eccentric valve is to allow the valve movement to deviate from the center line of the pipe during the valve opening and closing process, so as to improve the fluid flow characteristics, reduce the uneven pressure distribution on the contact surface between the fluid and the valve, and thus reduce wear and blockage. In addition, the eccentric design can effectively reduce the energy loss of the fluid when passing through the valve, and improve the overall energy efficiency of the system.

[0004] The eccentric design of the commonly used eccentric valve is mainly that the center of the spherical valve disc deviates from the rotation axis of the spherical valve disc, and the center of the valve disc and the horizontal axis of the valve are both located on one side of the rotation axis of the valve disc. This results in that when the valve is closed, the force exerted by the fluid in the pipeline on the spherical surface of the valve disc is in the direction when the valve disc is opened. That is, when the valve is closed, a large force is required to keep the valve disc in a closed state, and water pressure cannot be used to achieve automatic sealing and closure of the valve disc. Therefore, other locking and fastening structures need to be configured on the eccentric valve, which results in the problem of complex structure and poor functionality of the eccentric valve. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a pipeline fluid control water valve structure, and the specific technical solution adopted is:

[0006] A pipeline fluid control water valve structure, comprising a valve body, two valve pipes and a spherical valve core, wherein the two valve pipes are connected and installed on the left and right sides of the valve body respectively, the two valve pipes are coaxial, the spherical valve core is rotatably installed in the valve body, and the spherical valve core is used to block one valve pipe;

[0007] The rotation axis of the spherical valve core is vertical and coincides with the center point of the valve body, and the axis of the valve pipe and the center of the spherical valve core are respectively located on both sides of the rotation axis of the spherical valve core.

[0008] Furthermore, the bottom of the valve body is connected with a lower auxiliary chamber, a shoulder support is arranged in the lower auxiliary chamber, a fixed groove is arranged in the middle of the shoulder support, a column is fixed in the fixed groove, a tray is rotatably arranged on the column, and the tray and the shoulder support are in sealing contact through a first sealing ring;

[0009] The top of the valve body is connected to an upper auxiliary chamber, and a through hole is opened on the top of the upper auxiliary chamber;

[0010] The bottom of the spherical valve core is fixed on the tray, and a rotating column is arranged on the top of the spherical valve core. The rotating column passes through the through hole and is rotatably connected.

[0011] Furthermore, a plug post is provided at the bottom of the rotating column, and a plurality of conical prisms are provided at the bottom of the plug post. A disc is provided at the top of the spherical valve core, and a slot is provided at the top of the disc. A plurality of conical prism grooves used in conjunction with the conical prisms are provided in the slot;

[0012] Wherein, a friction structure for locking the position of the tray is arranged in the fixing groove.

[0013] Furthermore, a piston rolls on the rotating column inside the upper auxiliary chamber, a second sealing ring is arranged on the outer circumferential wall of the piston, and a third sealing ring is arranged on the top of the piston;

[0014] Wherein, the inner wall of the through hole is separated from the outer wall of the rotating column.

[0015] Furthermore, an oblique opening is provided on the spherical valve core, and a sealing plate is slidably provided on the inner wall of the spherical valve core, and the sealing plate is used to close the oblique opening;

[0016] When water flows through the oblique mouth, due to the inclination of the oblique mouth, the reaction force of the water flow can provide auxiliary closing power for the spherical valve core.

[0017] Furthermore, the sealing plate is connected to the spherical valve core via a spring sheet, a sliding column is vertically slidably inserted into the middle of the disc, and the sliding column and the sealing plate are connected via a connecting rod.

[0018] Furthermore, the friction structure includes a support plate and a spring mounted on the column, the spring is used to connect the support plate and the lower auxiliary bin, the horizontal cross-section of the column is polygonal, and a plurality of friction plates are arranged on the support plate, which are in friction contact with the tray.

[0019] Furthermore, a sealing cover is provided on the top of the upper auxiliary bin, and the rotating column passes through the sealing cover.

[0020] The advantages of the present invention are:

[0021] The newly designed water valve does not require additional locking or fastening structures to maintain the valve in a closed state, which makes the structure of the entire valve device simpler, reduces the number and complexity of parts, and helps to reduce manufacturing costs and maintenance difficulties; when the valve is closed, the force of the water flow in the pipe on the valve spherical surface can help maintain the valve in a closed state, rather than relying on external force or other mechanical locking devices. This design allows the valve to use its own fluid mechanics characteristics to achieve automatic closing, improving the reliability and efficiency of the valve operation; by using fluid force to help the valve close, the impact force during forced closing is reduced, thereby reducing wear; because the valve is tilted when closed and relies on fluid pressure to maintain a closed state, this can provide a better sealing effect and prevent leakage, especially in high-pressure or high-flow application scenarios; in summary, this new water valve design not only solves some inherent problems of traditional eccentric valves, but also brings multiple advantages such as simplified structure, easy operation and improved energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the middle valve body;

[0025] Figure 3 yes Figure 1 Schematic diagram of the valve body structure;

[0026] Figure 4 yes Figure 1 Schematic diagram of the internal structure of the valve body;

[0027] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure of the transfer column viewed from above;

[0028] Figure 6 yes Figure 4 Schematic diagram of the enlarged structure of the middle spherical valve core;

[0029] Figure 7 yes Figure 6 A schematic diagram of the structure from another perspective;

[0030] Figure 8 yes Figure 7 A schematic cross-sectional structure diagram of;

[0031] Figure numerals: 1. valve body; 2. valve tube; 3. spherical valve core; 4. lower auxiliary chamber; 5. shoulder support; 6. fixing groove; 7. column; 8. first sealing ring; 9. tray; 10. upper auxiliary chamber; 11. rotating column; 12. plug column; 13. disc; 14. piston; 15. second sealing ring; 16. third sealing ring; 17. oblique mouth; 18. sealing plate; 19. spring; 20. connecting rod; 21. sliding column; 22. support plate; 23. friction plate; 24. spring; 25. sealing cover. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0035] like Figures 1 to 8 As shown, a pipeline fluid control water valve structure of the present invention comprises a valve body 1, two valve pipes 2 and a spherical valve core 3, the two valve pipes 2 are connected and installed on the left and right sides of the valve body 1 respectively, the two valve pipes 2 are coaxial, the spherical valve core 3 is rotatably installed in the valve body 1, and the spherical valve core 3 is used to block one valve pipe 2;

[0036] The rotation axis of the spherical valve core 3 is vertical and coincides with the center point of the valve body 1 , and the axis of the valve tube 2 and the center of the spherical valve core 3 are located on both sides of the rotation axis of the spherical valve core 3 .

[0037] In detail, the valve body 1 and the two valve tubes 2 together form a channel for fluid to pass through the valve, and the two valve tubes 2 are used to connect to the external pipeline. The spherical valve core 3 can close and open one valve tube 2, so as to control the opening and closing of the valve. Since the shape of the spherical valve core 3 is spherical, it has the same effect of reducing the resistance of the valve to the flow of fluid as the traditional eccentric valve. Since the axis of the valve tube 2 and the ball center of the spherical valve core 3 are respectively located on both sides of the rotation axis of the spherical valve core 3, when the spherical valve core 3 rotates and closes the valve tube 2, the spherical valve core 3 moves from one side of the rotation axis of the spherical valve core 3 to the other side, that is, the spherical valve core 3 rotates from one side located at its ball center to one side of the axis of the valve tube 2, so that the spherical valve core 3 When the valve tube 2 is closed, it is in a tilted state, and the force exerted by the water in the pipeline on the spherical valve core 3 is biased toward the side where the rotation axis of the spherical valve core 3 is located on the axis of the valve tube 2. Combined with the basic concept of the eccentric valve, that is, when the valve core is closed, due to the angle limitation, the valve core and the closing surface are instantly in contact and form a sealing effect. At this time, the closing surface blocks the valve core. Therefore, when the spherical valve core 3 is closed, it cannot continue to rotate. With the action of the water flow in the pipeline on the spherical valve core 3, the spherical valve core 3 maintains the closed state and no longer moves, thereby achieving the purpose of automatically limiting the spherical valve core 3 by water pressure, without having to set other locking and limiting structures for the spherical valve core 3 separately. Its structure is simplified and the operation is more convenient.

[0038] It should be pointed out that, since it is necessary to utilize the force between the outer spherical surface of the spherical valve core 3 and the water, the flow direction of the water in the pipeline is toward the outer spherical surface of the spherical valve core 3 .

[0039] The newly designed water valve does not require additional locking or fastening structures to maintain the valve in a closed state, which makes the structure of the entire valve device simpler, reduces the number and complexity of parts, and helps to reduce manufacturing costs and maintenance difficulties; when the valve is closed, the force of the water flow in the pipe on the valve spherical surface can help maintain the valve in a closed state, rather than relying on external force or other mechanical locking devices. This design allows the valve to use its own fluid mechanics characteristics to achieve automatic closing, improving the reliability and efficiency of the valve operation; by using fluid force to help the valve close, the impact force during forced closing is reduced, thereby reducing wear; because the valve is tilted when closed and relies on fluid pressure to maintain a closed state, this can provide a better sealing effect and prevent leakage, especially in high-pressure or high-flow application scenarios; in summary, this new water valve design not only solves some inherent problems of traditional eccentric valves, but also brings multiple advantages such as simplified structure, easy operation and improved energy efficiency.

[0040] Furthermore, the bottom of the valve body 1 is connected with a lower auxiliary chamber 4, a shoulder support 5 is arranged in the lower auxiliary chamber 4, a fixed groove 6 is arranged in the middle of the shoulder support 5, a column 7 is fixed in the fixed groove 6, a tray 9 is rotatably arranged on the column 7, and the tray 9 is in sealing contact with the shoulder support 5 through a first sealing ring 8;

[0041] The top of the valve body 1 is connected to an upper auxiliary chamber 10, and a through hole is opened on the top of the upper auxiliary chamber 10;

[0042] The bottom of the spherical valve core 3 is fixed on the tray 9, and a rotating column 11 is arranged on the top of the spherical valve core 3. The rotating column 11 passes through the through hole and is rotatably connected.

[0043] In detail, the column 7 can provide support for the tray 9 and the spherical valve core 3, so that the spherical valve core 3 can rotate smoothly in the valve body 1, and the axis of the column 7 coincides with the rotation axis of the spherical valve core 3. The setting of the first sealing ring 8 can isolate the valve body 1 and the lower auxiliary chamber 4, thereby preventing water from entering the fixed groove 6. When the tray 9 rotates, the tray 9 and the first sealing ring 8 rotate relative to each other, and the first sealing ring 8 maintains a sealed state for the shoulder support 5 and the tray 9, that is, the first sealing ring 8 is clamped and fixed on the shoulder support 5. The upper auxiliary chamber 10 can provide an installation space for the rotating column 11, and the rotating column 11 can actively drive the spherical valve core 3 to rotate.

[0044] Furthermore, a plug post 12 is provided at the bottom of the rotating column 11, and a plurality of conical prisms are provided at the bottom of the plug post 12. A disc 13 is provided at the top of the spherical valve core 3, and a slot is provided at the top of the disc 13. A plurality of conical prism grooves used in conjunction with the conical prisms are provided in the slot;

[0045] Wherein, a friction structure for locking the position of the tray 9 is arranged in the fixing groove 6 .

[0046] In detail, in the natural state, the rotating column 11 and the spherical valve core 3 can be separated. When adjusting the position of the spherical valve core 3, the rotating column 11 can be pressed so that the rotating column 11 pushes the plug 12 thereon to insert into the slot on the disc 13. Through the cooperation of the conical prism and the conical prism groove, the rotating column 11 can drive the disc 13 to rotate when it rotates, thereby driving the spherical valve core 3 to rotate. When the rotating column 11 is separated from the spherical valve core 3, the friction structure can lock the position of the spherical valve core 3, thereby preventing the spherical valve core 3 from moving at will, and at the same time facilitating the locking of the valve opening amount.

[0047] Furthermore, a piston 14 rolls on the rotating column 11 inside the upper auxiliary chamber 10, a second sealing ring 15 is arranged on the outer circumferential wall of the piston 14, and a third sealing ring 16 is arranged on the top of the piston 14;

[0048] The inner wall of the through hole is separated from the outer wall of the rotating column 11 .

[0049] In detail, the piston 14 and the second sealing ring 15 can seal and separate the interior of the upper auxiliary chamber 10. When the position of the spherical valve core 3 needs to be adjusted, the rotating column 11 is pressed to make the plug column 12 and the disc 13 cooperate and connect with each other. At this time, the rotating column 11 will drive the piston 14, the second sealing ring 15 and the third sealing ring 16 to move downward synchronously. Therefore, there is no water in the valve body 1 at this time, so the water pressure can be prevented from hindering the movement of the rotating column 11. When the position of the spherical valve core 3 is adjusted, water flows into the valve body 1, and the water pressure will produce an upward thrust on the piston 14, thereby helping to separate the plug column 12 and the disc 13.

[0050] It should be pointed out that since the inner wall of the through hole and the outer wall of the rotating column 11 are in a separated state, and the piston 14 is in contact with the upper auxiliary chamber 10 through the second sealing ring 15, it is possible to avoid the rotating column 11 and the piston 14 being in contact with the upper auxiliary chamber 10 for a long time, thereby avoiding rust and affecting the normal rotation of the rotating column 11 and the spherical valve core 3. In addition, by utilizing the effect of water pressure, the piston 14 can squeeze the third sealing ring 16, thereby further sealing the through hole.

[0051] Furthermore, an oblique opening 17 is provided on the spherical valve core 3, and a sealing plate 18 is slidably provided on the inner wall of the spherical valve core 3, and the sealing plate 18 is used to close the oblique opening 17;

[0052] When water flows through the oblique opening 17 , due to the inclination of the oblique opening 17 , the reaction force of the water flow can provide auxiliary closing power for the spherical valve core 3 .

[0053] In detail, when the spherical valve core 3 is closed, since the water flow can flow through the spherical valve core 3, the closing resistance of the spherical valve core 3 can be reduced. Since the inclined mouth 17 is inclined, when the water flows through the inclined mouth 17, the reaction force of the water flow will provide auxiliary thrust for the spherical valve core 3, thereby helping the spherical valve core 3 to close. When the spherical valve core 3 is closed, since the water flow passing through the inclined mouth 17 is small, the sealing plate 18 can be used to smoothly block the inclined mouth 17, thereby completely closing the valve.

[0054] Furthermore, the sealing plate 18 is connected to the spherical valve core 3 via a spring sheet 19 , a sliding column 21 is vertically slidably inserted into the middle of the disc 13 , and the sliding column 21 is connected to the sealing plate 18 via a connecting rod 20 .

[0055] In detail, the two ends of the connecting rod 20 can be rotatably connected to the sealing plate 18 and the sliding column 21 respectively. When the plug post 12 moves downward, the plug post 12 will push the sliding column 21 to move downward. At this time, the sliding column 21 pushes the sealing plate 18 to move through the connecting rod 20, the bevel 17 opens, and the spring piece 19 undergoes elastic deformation. When the plug post 12 and the disc 13 are combined with each other, the plug post 12 can smoothly drive the disc 13 and the spherical valve core 3 to rotate, thereby using the plug post 12 to synchronously control the spherical valve core 3 and the sealing plate 18.

[0056] Furthermore, the friction structure includes a support plate 22 and a spring 24 mounted on the column 7, the spring 24 is used to connect the support plate 22 and the lower auxiliary bin 4, the horizontal cross-section of the column 7 is a polygon, and a plurality of friction plates 23 are arranged on the support plate 22, and the friction plates 23 are in friction contact with the tray 9.

[0057] In detail, the spring 24 can provide elastic thrust to the multiple friction plates 23 through the support plate 22, so that the friction plates 23 are in close contact with the tray 9, thereby using the friction force to lock the position of the tray 9 and the spherical valve core 3. Since the horizontal cross-sectional shape of the column 7 is a polygon, it can limit the support plate 22 to prevent the support plate 22 from rotating.

[0058] Furthermore, a sealing cover 25 is provided on the top of the upper auxiliary bin 10 , and the rotating column 11 passes through the sealing cover 25 .

[0059] In detail, by providing the sealing cover 25 , the gap between the through hole and the rotating column 11 can be blocked, thereby preventing foreign matter from falling into the upper auxiliary chamber 10 through the gap.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A water valve structure for pipeline fluid control, characterized in that: It comprises a valve body (1), two valve tubes (2) and a spherical valve core (3), wherein the two valve tubes (2) are connected and installed on the left and right sides of the valve body (1) respectively, the two valve tubes (2) are coaxial, the spherical valve core (3) is rotatably installed in the valve body (1), and the spherical valve core (3) is used to block one valve tube (2); The rotation axis of the spherical valve core (3) is vertical and coincides with the center point of the valve body (1); the axis of the valve tube (2) and the center of the spherical valve core (3) are respectively located on both sides of the rotation axis of the spherical valve core (3); The bottom of the valve body (1) is connected to a lower auxiliary chamber (4), a shoulder support (5) is arranged in the lower auxiliary chamber (4), a fixing groove (6) is arranged in the middle of the shoulder support (5), a column (7) is fixed in the fixing groove (6), a tray (9) is rotatably arranged on the column (7), and the tray (9) and the shoulder support (5) are in sealing contact via a first sealing ring (8); The top of the valve body (1) is connected to an upper auxiliary chamber (10), and a through hole is formed at the top of the upper auxiliary chamber (10); The bottom of the spherical valve core (3) is fixed on the tray (9), and a rotating column (11) is arranged on the top of the spherical valve core (3), and the rotating column (11) passes through the through hole and is rotatably connected; The bottom of the rotating column (11) is provided with an insert column (12), the bottom of the insert column (12) is provided with a plurality of conical prisms, the top of the spherical valve core (3) is provided with a disc (13), the top of the disc (13) is provided with a slot, and the slot is provided with a plurality of conical prism grooves used in conjunction with the conical prisms; Wherein, a friction structure for locking the position of the tray (9) is provided in the fixing groove (6); A piston (14) rolls on the rotating column (11) inside the upper auxiliary chamber (10), a second sealing ring (15) is provided on the circumferential outer wall of the piston (14), and a third sealing ring (16) is provided on the top of the piston (14); The inner wall of the through hole is separated from the outer wall of the rotating column (11); The spherical valve core (3) is provided with an oblique opening (17), and a sealing plate (18) is slidably provided on the inner wall of the spherical valve core (3), and the sealing plate (18) is used to close the oblique opening (17); When water flows through the oblique opening (17), due to the inclination of the oblique opening (17), the reaction force of the water flow can provide auxiliary closing power for the spherical valve core (3); The sealing plate (18) and the spherical valve core (3) are connected via a spring sheet (19); a sliding column (21) is vertically slidably inserted through the middle of the disc (13); and the sliding column (21) and the sealing plate (18) are connected via a connecting rod (20).

2. A pipeline fluid control water valve structure according to claim 1, characterized in that: The friction structure comprises a support plate (22) and a spring (24) sleeved on a column (7); the spring (24) is used to connect the support plate (22) and the lower auxiliary bin (4); the column (7) has a polygonal horizontal cross-section; a plurality of friction plates (23) are provided on the support plate (22); the friction plates (23) are in frictional contact with the tray (9).

3. A pipeline fluid control water valve structure according to claim 2, characterized in that: A sealing cover (25) is provided on the top of the upper auxiliary bin (10), and the rotating column (11) passes through the sealing cover (25).

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