A liquid-accumulation-preventing ball valve

Abstract

The application discloses a kind of anti-liquid ball valves, including valve housing, the outer valve ball is installed in the valve housing, the inner valve ball is installed in the outer valve ball, the first opening and the second opening are respectively set in the front and back sides of the outer valve ball, the oil cavity is set in the inner valve ball, and the inner diaphragm is connected to the surface of the oil cavity.The outer valve ball and the inner valve ball are designed, in the process of closing the valve body, the outer valve ball is first rotated to quickly seal the channel in the inner valve ball, the inner valve ball is rotated as support after the outer valve ball, corresponding to the side of the water inlet, to reduce the pressure on the side edge of the outer valve ball, and the opening size of the left and right sides of the outer valve ball is different, so that the water outlet of the inner valve ball is not completely closed when the water inlet of the inner valve ball is closed by the outer valve ball, so that the liquid can be normally discharged from the water outlet pipe, so that the liquid is completely discharged before the internal channel of the closed ball valve, to avoid the internal liquid to smear on the inner wall of the valve body and the inner valve ball.

Description

Technical Field

[0001] This invention relates to the field of ball valves, and in particular to an anti-liquidation ball valve. Background Technology

[0002] Ball valves primarily use the rotation of a central ball to cut off or allow the flow of liquids, and are one of the most commonly used valves in production.

[0003] Because the ball valve has a channel in the middle of the ball, when the ball valve is closed, this channel cannot connect with the two sides. Furthermore, during the entire closing process, both the inlet and outlet are closed simultaneously, preventing the internal fluid from draining quickly enough. This leads to the gradual deterioration of the raw materials in the ball's internal channel during the transport of certain food ingredients if the valve is closed for an extended period, affecting food safety. Additionally, because the material in the ball's channel cannot drain quickly, it is evenly coated onto the inner wall of the valve body when the ball rotates to close. To facilitate easier ball rotation and reduce friction, a gap exists between the valve body and the ball, which is the root cause of liquid accumulation. To address the current problem of insufficient internal material drainage during closure and the resulting liquid accumulation on the inner wall of the valve body, an anti-liquidation ball valve needs to be designed.

[0004] Therefore, we propose an anti-liquidation ball valve to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-liquidation ball valve to solve the problem mentioned in the background art where, when the ball valve is closed, the internal raw material remains in the central channel of the valve ball, and the residual liquid comes into contact with the inner wall of the valve body, forming residue. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An anti-accumulation ball valve includes a valve body, an outer valve ball installed inside the valve body, an inner valve ball installed inside the outer valve ball, a first opening and a second opening respectively on the front and rear sides of the outer valve ball, an oil chamber inside the inner valve ball, an inner diaphragm connected to the surface of the oil chamber, a first sealing ring installed at one end of the valve body, a second sealing ring installed at the other end of the valve body, a sealing bladder connected to one side of the outer wall of the second sealing ring, an oil pipe connected to the outer wall of the sealing bladder, a connecting rod connected to the top of the inner valve ball, a rotating chamber installed at the top of the connecting rod, a connecting ring slidably connected to the outer wall of the rotating chamber, a connecting ring connected to one side of the outer wall of the connecting ring, a second toothed ring fixedly connected to the outer wall of the connecting rod, a connecting post connected to the top of the outer wall of the outer valve ball, a first toothed ring installed on the outer wall of the connecting post, a first shaped gear meshing with one side of the outer wall of the first toothed ring, a second shaped gear meshing with one side of the outer wall of the second toothed ring, and a handle rod centrally connected to the second shaped gear and the first shaped gear.

[0007] In a further embodiment, the first opening is the same size as the inner diameter of the inner valve ball, the second opening is larger than the inner diameter of the inner valve ball, the first opening is located on the inlet side of the valve body, and the second opening is located on the outlet side of the valve body.

[0008] In a further embodiment, the surface teeth of the first irregular gear are one-quarter the size of the first gear ring, and the first gear ring has the same maximum diameter as the first irregular gear.

[0009] In a further embodiment, when the first shaped gear and the second shaped gear rotate clockwise, the first shaped gear engages with the first gear ring before the first gear ring.

[0010] In a further embodiment, a rubber ring is provided on the inner wall side of the outer valve ball near the first opening, and the rubber ring is attached to the outer wall of the inner valve ball.

[0011] In a further embodiment, the first sealing ring and the second sealing ring are elastically connected to the inside of the valve body, and the sealing bladder is located at the outlet of the valve body inlet.

[0012] In a further embodiment, the connecting rod has a pipe inside that communicates with the interior of the rotating chamber.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention designs an outer valve ball and an inner valve ball. During the valve body closing process, the outer valve ball rotates first to quickly seal the internal channel of the inner valve ball. The inner valve ball then rotates to support the side of the outer valve ball corresponding to the inlet, reducing the pressure on the thin wall of the outer valve ball. Furthermore, the openings on the left and right sides of the outer valve ball are of different sizes. When the inlet of the inner valve ball is sealed by the outer valve ball, the outlet of the inner valve ball is not completely sealed, allowing liquid to drain normally from the outlet pipe. In this way, the liquid is completely drained before the internal channel of the ball valve is sealed, preventing internal liquid from smearing onto the valve body and the inner wall of the inner valve ball. The biggest difference from existing technologies is that this application aims to eliminate liquid accumulation to the greatest extent possible, rather than draining the accumulated liquid. This effectively avoids the corrosion of equipment caused by liquid accumulation in the ball valve. Since the amount of residue inside the ball valve is greatly reduced, there is almost no problem of product deterioration when the valve is closed. Even if the valve is opened after being closed for a long time, the product quality of the entire production line will not be affected. When users turn this valve, they only need to turn it in one direction like a normal valve to open or close it, and there is no problem of difficulty in getting started. Attached Figure Description

[0014] Figure 1 A schematic diagram of the main structure of the anti-liquidation ball valve.

[0015] Figure 2 A schematic diagram of the longitudinal section of a ball valve designed to prevent liquid accumulation.

[0016] Figure 3 A schematic diagram of the handle rod in a ball valve designed to prevent liquid accumulation.

[0017] Figure 4 To prevent liquid accumulation in the ball valve Figure 2 A magnified structural diagram of part A in the middle.

[0018] Figure 5 To prevent liquid accumulation in the ball valve Figure 2 A magnified structural diagram of section B in the middle.

[0019] Figure 6 A schematic diagram of the structure of the ball valve with an outer cross-section to prevent liquid accumulation and rotation.

[0020] Figure 7 A schematic diagram of the structure of the ball valve in the cross-section to prevent liquid accumulation.

[0021] In the diagram: 1. Valve body; 2. Outer valve ball; 201. First opening; 202. Second opening; 203. Rubber ring; 3. Inner valve ball; 4. Inner diaphragm; 5. First sealing ring; 6. Second sealing ring; 7. Sealing bladder; 8. Oil pipe; 9. Connecting rod; 10. Rotating chamber; 11. Connecting ring; 12. Connecting column; 13. First toothed ring; 14. Handle rod; 15. First shaped gear; 16. Second shaped gear; 17. Second toothed ring. Detailed Implementation

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] 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.

[0025] Please see Figure 1-7In this invention, an anti-accumulation ball valve includes a valve body 1, an outer valve ball 2 installed inside the valve body 1, and an inner valve ball 3 installed inside the outer valve ball 2. The outer valve ball 2 has a first opening 201 and a second opening 202 on its front and rear sides, respectively. The inner valve ball 3 has an oil chamber inside, and an inner diaphragm 4 is connected to the surface of the oil chamber. A first sealing ring 5 is installed at one end of the valve body 1, and a second sealing ring 6 is installed at the other end of the valve body 1. A sealing bladder 7 is connected to one side of the outer wall of the second sealing ring 6, and an oil pipe 8 is connected to the outer wall of the sealing bladder 7. The top of the inner valve ball 3 is connected to... A connecting rod 9 is provided, with a rotating chamber 10 mounted on its top. A connecting ring 11 is slidably connected to the outer wall of the rotating chamber 10. One side of the outer wall of the connecting ring 11 is connected to the oil pipe 8. A second toothed ring 17 is fixedly connected to the outer wall of the connecting rod 9. A connecting column 12 is connected to the top of the outer wall of the outer valve ball 2. A first toothed ring 13 is mounted on the outer wall of the connecting column 12. A first shaped gear 15 is meshed with one side of the outer wall of the first toothed ring 13. A second shaped gear 16 is meshed with one side of the outer wall of the second toothed ring 17. A handle rod 14 is centrally connected to the second shaped gear 16 and the first shaped gear 15.

[0026] The connecting rod 9 has a pipe inside that communicates with the interior of the rotating chamber 10. The outside of the rotating chamber 10 is a sliding connecting ring 11. When the rotating chamber 10 rotates together with the inner valve ball 3, the connecting ring 11 can maintain a stable connection with the oil pipe 8 by utilizing its sliding characteristics. Example 1

[0027] Please see Figure 1-7 In this embodiment of the invention, an anti-accumulation ball valve is provided. The first opening 201 has the same diameter as the inner valve ball 3, and the second opening 202 has a larger diameter than the inner valve ball 3. The first opening 201 is located on the inlet side of the valve housing 1, and the second opening 202 is located on the outlet side of the valve housing 1. When the outer valve ball 2 rotates, since the second opening 202 is larger than the first opening 201, the position of the inlet of the inner valve ball 3 is completely offset from the first opening 201, keeping the inlet closed. Meanwhile, a gap is maintained between the outlet and the second opening 202, allowing the accumulated liquid inside the inner valve ball 3 to flow away completely.

[0028] A rubber ring 203 is provided on the inner wall side of the outer valve ball 2 near the first opening 201. The rubber ring 203 is attached to the outer wall of the inner valve ball 3. The rubber ring 203 is mainly used to fill the gap between the outer valve ball 2 and the inner valve ball 3 to prevent liquid from accumulating in the gap. When the valve is normally open and the liquid is flowing in the valve, the impact force of the liquid is difficult to act directly on the rubber ring 203, and the life of the rubber ring 203 can last longer. In some cases, especially when the valve is closed, the rubber ring 203 will be subjected to water pressure, but the overall time is short. Example 2

[0029] Please see Figure 1-7 The difference from Embodiment 1 is that the teeth on the surface of the first shaped gear 15 are one-quarter of those on the first gear ring 13. The first gear ring 13 and the first shaped gear 15 have the same maximum diameter. The teeth on the surface of the first shaped gear 15 are only one-quarter of those on the first gear ring 13. The remaining three-quarters of the area is a smooth structure and cannot mesh with the first gear ring 13. In this way, the first gear ring 13 will only drive the outer valve ball 2 to rotate 90°.

[0030] When the first shaped gear 15 and the second shaped gear 16 rotate clockwise, the first shaped gear 15 meshes with the first gear ring 13 first. The clockwise rotation of the first shaped gear 15 and the second shaped gear 16 is the process of the valve going from opening to closing, which has the effect of making the outer valve ball 2 rotate first and the inner valve ball 3 rotate later. Example 3

[0031] Please see Figure 1-7 The difference from Embodiment 1 is that the first sealing ring 5 and the second sealing ring 6 are elastically connected to the inside of the valve body 1, and the sealing bladder 7 is located at the inlet of the valve body 1. The first sealing ring 5 and the second sealing ring 6 are both elastically attached to the outer wall of the outer valve ball 2. When the outer valve ball 2 rotates to close the valve, and due to the reduction of hydraulic oil in the sealing bladder 7, under the continuous force of water pressure, the first sealing ring 5 and the sealing bladder 7 will also fit more closely to the outer wall of the outer valve ball 2.

[0032] The working principle of this invention is: First, the equipment itself is in the open state, and the liquid is flowing normally. When the liquid is flowing, the inner diaphragm 4 is pushed outward by the pressure of the water. The inner diaphragm 4, oil pipe 8, connecting rod 9, rotating chamber 10, and sealing bladder 7 are all filled with hydraulic oil. The oil squeezed into the inner diaphragm 4 impacts the inside of the sealing bladder 7, causing the sealing bladder 7 to expand outward and fit against the outer wall of the outer valve ball 2. When it is necessary to close the valve, simply turn the handle 14 clockwise. The handle 14 can drive the first shaped gear 15 and the second shaped gear 16 to rotate. The first shaped gear 15 first engages with the first tooth... When ring 13 meshes, it drives the first toothed ring 13 to rotate, and simultaneously drives the connecting column 12 and the outer valve ball 2 to rotate. Since the teeth on the surface of the first shaped gear 15 are one-quarter the size of the teeth on the first toothed ring 13, it can only drive the outer valve ball 2, the connecting column 12, and the first toothed ring 13 to rotate 90°. During the rotation of the outer valve ball 2, the amount of water entering the inner valve ball 3 through the inlet gradually decreases. Due to the reduced amount of water inside, the pressure on the inner diaphragm 4 also decreases. The hydraulic oil flows back into the cavity formed by the inner diaphragm 4 and the inner valve ball 3. The oil inside the sealing bladder 7 decreases, and the sealing bladder 7 and the outer valve... There will be gaps between the outer walls of ball 2. However, due to the reduced amount of water flowing into the inner valve ball 3, the pressure at the inlet will increase. The water flow will push the second sealing ring 6 to move laterally, filling the gaps and maintaining the fit with the outer valve ball 2. Since the first opening 201 and the second opening 202 are openings of different sizes, the purpose is that when the first opening 201 is closed, there will still be a gap between the second opening 202 and the inner cavity of the inner valve ball 3, allowing the liquid in the inner cavity of the inner valve ball 3 to flow away naturally and preventing liquid accumulation inside the inner valve ball 3. Then continue to rotate the handle. 14. The first shaped gear 15 disengages from the first gear ring 13, and the outer valve ball 2 stops rotating. Then, the second shaped gear 16 engages with the second gear ring 17 and drives the inner valve ball 3 to rotate. Although the two ends of the inner valve ball 3 are sealed by the outer side of the outer valve ball 2, the outer valve ball 2 is a hollow structure and cannot be used as the main flow-stopping element. The side of the inner valve ball 3 can be used as the support for the outer valve ball 2. The whole process is the process of the user closing the valve, which is a sealing form of rotating the outer valve ball 2 first and then rotating the inner valve ball 3. When opening, the inner valve ball 3 rotates first and the outer valve ball 2 rotates later. As the water pressure at the outlet also decreases, the pressure on the first sealing ring 5 also decreases, allowing the first sealing ring 5 to press more tightly against the outer wall of the outer valve ball 2.

[0033] Secondly, since the diameter of the second irregular gear 16 is larger than that of the second gear ring 17, it is impossible to guarantee that the inner valve ball 3 will rotate accurately to 90° during the assembly and debugging process. In fact, the solid side of the inner valve ball 3 only needs to be in a position corresponding to the inlet and outlet.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ball valve for preventing liquid accumulation, characterized in that: The valve includes a valve body (1), an outer valve ball (2) installed inside the valve body (1), an inner valve ball (3) installed inside the outer valve ball (2), a first opening (201) and a second opening (202) respectively on the front and rear sides of the outer valve ball (2), an oil chamber inside the inner valve ball (3), an inner diaphragm (4) connected to the surface of the oil chamber, a first sealing ring (5) installed at one end of the valve body (1), a second sealing ring (6) installed at the other end of the valve body (1), a sealing bladder (7) connected to one side of the outer wall of the second sealing ring (6), an oil pipe (8) connected to the outer wall of the sealing bladder (7), and a connecting rod (9) connected to the top of the inner valve ball (3). A rotating chamber (10) is installed on the top of the connecting rod (9). A connecting ring (11) is slidably connected to the outer wall of the rotating chamber (10). One side of the outer wall of the connecting ring (11) is connected to the oil pipe (8). A second toothed ring (17) is fixedly connected to the outer wall of the connecting rod (9). A connecting column (12) is connected to the top of the outer wall of the outer valve ball (2). A first toothed ring (13) is installed on the outer wall of the connecting column (12). A first shaped gear (15) is meshed on one side of the outer wall of the first toothed ring (13). A second shaped gear (16) is meshed on one side of the outer wall of the second toothed ring (17). A handle rod (14) is connected at the center of the second shaped gear (16) and the first shaped gear (15). The first opening (201) has the same diameter as the inner valve ball (3), and the second opening (202) has a larger diameter than the inner valve ball (3). The first opening (201) is located on the inlet side of the valve body (1), and the second opening (202) is located on the outlet side of the valve body (1). The surface teeth of the first shaped gear (15) are one-quarter the size of the first gear ring (13), and the first gear ring (13) has the same maximum diameter as the first shaped gear (15). When the first shaped gear (15) and the second shaped gear (16) rotate clockwise, the first shaped gear (15) meshes with the first gear ring (13) first; The connecting rod (9) has a pipe inside that is connected to the interior of the rotating cabin (10).

2. The anti-accumulation ball valve according to claim 1, characterized in that: A rubber ring (203) is provided on the inner wall side of the outer valve ball (2) near the first opening (201), and the rubber ring (203) is attached to the outer wall of the inner valve ball (3).

3. The anti-accumulation ball valve according to claim 1, characterized in that: The first sealing ring (5) and the second sealing ring (6) are elastically connected to the inside of the valve body (1), and the sealing bag (7) is located at the inlet of the valve body (1).

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