Top-mounted ball valve convenient for replacing accessories

Abstract

The invention relates to the technical field of top-mounted ball valves, and discloses a top-mounted ball valve convenient for accessory replacement, which comprises a ball valve body, one end of the ball valve body is fixedly connected with a connecting pipe, the bottom of the connecting pipe is fixedly connected with a collecting box, the collecting box is internally provided with a collecting groove, and the inner wall of the connecting pipe is provided with a falling groove communicated with the collecting groove. The inner wall of the connecting pipe is fixedly connected with a fixed filter plate, and one side of the fixed filter plate is connected with a filter plate. According to the top-mounted ball valve with the accessories convenient to replace, the fixed filter plate and the filter plate are matched with each other, so that liquid entering the top-mounted ball valve is filtered, the cleanliness of the liquid is enhanced, and the abrasion risk caused by impurity erosion of a ball body and a cavity in the ball valve body is reduced; in addition, damage to the sealing face of the valve seat caused by impurity accumulation is effectively reduced, the service life of the top entry type ball valve is prolonged, and the problems of leakage, jamming or failure of the ball valve are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of top-mounted ball valves, in particular to a top-mounted ball valve which is convenient for replacing accessories. Background Art

[0002] The top-entry ball valve is a specially designed ball valve, the main feature of which is that the valve can be assembled and repaired from the top of the valve without disassembling the entire valve or the surrounding piping system. This design makes valve maintenance simpler and faster, reduces maintenance costs, and improves system reliability. Compared with the traditional side-entry ball valve, the top-entry ball valve can more conveniently replace the sealing parts inside the ball valve. Since the top-entry ball valve adopts a top assembly and disassembly structure, when it is necessary to replace key sealing parts such as the ball, valve seat, and sealing ring, the staff only needs to simply remove the cover or flange on the top of the valve to easily access the internal structure of the valve. This design avoids disassembling the entire valve or the surrounding complex piping system, greatly reducing the time and labor costs required for maintenance.

[0003] For example, in the prior art, the invention patent with the authorization announcement number CN104676037B discloses a top-mounted ball valve, including a valve body and a ball-valve seat assembly; the valve body has a valve cavity, and an upper opening, an upstream channel, and a downstream channel respectively communicating with the valve cavity; the ball-valve seat assembly includes a first valve seat assembly, a second valve seat assembly, and a ball with a conducting channel; the ball-valve seat assembly also includes a bearing block respectively sleeved on the first valve seat assembly and the second valve seat assembly at one end away from the ball, a slot provided on the outer wall of the first valve seat assembly, and a retaining spring sleeved on the first valve seat assembly suitable for being inserted into the slot, and the upper opening is suitable for the ball-valve seat assembly as a whole to be installed into the valve cavity from the upper opening. The above device solves the technical problems that the processing accuracy of the existing top-mounted ball valve is difficult to guarantee, and the assembly and disassembly of the internal components of the valve are complicated and cumbersome.

[0004] Although the loading and unloading of the internal components of the top-loading ball valve in the above patent is complicated and cumbersome, the existing top-loading ball valve has certain defects when in use; the existing top-loading ball valve lacks a filtering structure for the liquid inside the pipeline. When the liquid containing impurities passes through the ball valve, the impurities will cause wear on the ball in the ball valve, thereby affecting the sealing performance and operational flexibility of the ball valve. Over a long period of time, this wear may cause the ball valve to leak, get stuck or fail, seriously affecting the stability and safety of the liquid control system. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a top-mounted ball valve that is easy to replace accessories, so as to solve the problems raised by the background technology and provide filtration for the liquid entering the ball valve.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a top-mounted ball valve that is easy to replace accessories, comprising a ball valve body, one end of the ball valve body is fixedly connected to a connecting pipe, the bottom of the connecting pipe is fixedly connected to a collecting box, a collecting groove is provided inside the collecting box, a falling groove connected to the collecting groove is provided on the inner wall of the connecting pipe, a fixed filter plate is fixedly connected to the inner wall of the connecting pipe, a filter plate is connected to one side of the fixed filter plate, the outer edge of the filter plate is in contact with the inner wall of the connecting pipe, a rotating assembly is connected to one side of the filter plate, and a sampling assembly is connected to the outer wall of the connecting pipe.

[0007] Furthermore, the rotating assembly includes a rotating shaft, a fixed sleeve, a connecting sleeve and a handle. The rotating shaft is rotatably connected in the connecting tube, two fixed sleeves are fixedly connected to one side of the filter plate, the fixed sleeve is fixedly connected to the rotating shaft, a connecting sleeve is fixedly connected to one side of the fixed filter plate, the connecting sleeve is rotatably connected to the rotating shaft, and one end of the rotating shaft penetrates the connecting tube and is fixedly connected to the handle.

[0008] Furthermore, the sampling assembly includes a connecting tube, a valve and a sampling tube. The outer wall of one end of the connecting tube close to the middle of the ball valve body is fixedly connected to the connecting tube, the other end of the connecting tube is fixedly connected to the valve, and one side of the valve is fixedly connected to the sampling tube. The connecting tube is located on one side of the filter plate close to the middle of the ball valve body.

[0009] Furthermore, one end of the rotating shaft away from the handle is fixedly connected to a threaded rod, an outer wall of the threaded rod is threadedly connected to a fixing cap, and one side of the fixing cap is fitted with an outer wall of the connecting tube.

[0010] Furthermore, a debris removal port is opened on one side of the bottom of the collection box, a threaded ring corresponding to the position of the debris removal port is fixedly connected to the outer wall of the bottom of the collection box, a sealing cover is threadedly connected to the outer wall of the threaded ring, a sealing ring is connected between the threaded ring and the sealing cover, and an isolation assembly is connected inside the collection box.

[0011] Furthermore, the isolation assembly includes a rotating rod, a baffle, a sealing strip and a handle. Two symmetrically arranged rotating holes are opened in the middle of the collection box. The rotating rod is rotatably connected in the rotating hole. The outer wall of the rotating rod is fixedly connected to two baffles symmetrically arranged about the center of the rotating rod. Two sealing strips are fixedly connected to the inner wall of the collection box. The positions of the sealing strips and the baffles correspond. One end of the rotating rod penetrates the collection box and is fixedly connected to a connecting block. A handle is fixedly connected to one side of the connecting block.

[0012] Furthermore, one end of the rotating rod away from the handle is fixedly connected to a limiting screw, and an outer wall of the limiting screw is threadedly connected to a limiting cap.

[0013] Furthermore, the outer walls of the fixing cap and the limiting cap are both provided with anti-slip grooves.

[0014] Furthermore, an anti-slip sleeve is fixedly connected to the outer wall of the sealing cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This top-entry ball valve, which is easy to replace accessories, uses the cooperation between the fixed filter plate and the filter plate to filter the liquid entering the top-entry ball valve, thereby enhancing the cleanliness of the liquid, reducing the risk of wear of the ball and chamber in the ball valve body due to erosion by impurities, and effectively reducing the damage to the valve seat sealing surface caused by the accumulation of impurities, thereby increasing the service life of the top-entry ball valve, avoiding the occurrence of problems such as ball valve leakage, jamming or failure, improving the reliability and stability of the ball valve, and reducing production losses and maintenance costs caused by downtime due to failures; By changing the shape of the filter plate, the liquid can flow directly over the fixed filter plate and the filter plate, thereby avoiding unnecessary pressure drop and energy consumption. At the same time, it can also clean the fixed filter plate and the filter plate and flush away the impurities attached to their surface. This flushing method is not only simple to operate and efficient, but also can ensure that the fixed filter plate and the filter plate are thoroughly cleaned, restore their filtering effect, and further ensure the continuous and efficient operation of the filtration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the present invention as a whole; Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the connecting tube, the collecting box and the sealing cover of the present invention; Figure 4 It is a schematic diagram of a three-dimensional cross-sectional structure of the connecting tube, the collecting box, the sealing cover and the handle of the present invention; Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the collection box and the isolation assembly of the present invention; Figure 6 It is a schematic diagram of a three-dimensional split cross-sectional structure of the isolation component of the present invention; Figure 7 It is a schematic diagram of a three-dimensional cross-sectional structure of an isolation component of the present invention; Figure 8 It is a schematic diagram of the three-dimensional split cross-sectional structure of the collecting box, the sealing cover and the sealing ring of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the handle, the fixing cap, the fixing filter plate and the filter plate of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the fixed filter plate and the filter plate of the present invention.

[0017] In the figure: 1. ball valve body; 2. connecting pipe; 3. collecting box; 4. collecting tank; 5. falling tank; 6. fixed filter plate; 7. filter plate; 8. rotating shaft; 9. fixing sleeve; 10. connecting sleeve; 11. handle; 12. fixing cap; 13. anti-skid pattern; 14. rotating rod; 15. baffle; 16. sealing strip; 17. handle; 18. limiting cap; 19. debris removal port; 20. threaded ring; 21. sealing cover; 22. anti-skid sleeve; 23. sealing ring; 24. connecting pipe; 25. valve; 26. sampling tube; 27. connecting block; 28. threaded rod; 29. ​​rotating hole; 30. limiting screw. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figures 1 to 10 A top-mounted ball valve which is easy to replace accessories comprises a ball valve body 1, a connecting pipe 2 is fixedly connected to one end of the ball valve body 1, a collecting box 3 is fixedly connected to the bottom of the connecting pipe 2, a collecting groove 4 is provided inside the collecting box 3, a falling groove 5 connected to the collecting groove 4 is provided on the inner wall of the connecting pipe 2, a fixed filter plate 6 is fixedly connected to the inner wall of the connecting pipe 2, a filter plate 7 is connected to one side of the fixed filter plate 6, the outer edge of the filter plate 7 is in contact with the inner wall of the connecting pipe 2, a rotating assembly is connected to one side of the filter plate 7, and a sampling assembly is connected to the outer wall of the connecting pipe 2.

[0020] The top-mounted ball valve of the present invention is easy to replace accessories. When the top-mounted ball valve is in operation, the liquid will first enter the connecting pipe 2 after entering the ball valve body 1. At this time, the fixed filter plate 6 and the filter plate 7 in the connecting pipe 2 will filter the impurities in the liquid, thereby ensuring that the liquid flowing out of the connecting pipe 2 does not contain impurities, and the filtered impurities will fall from the falling groove 5 to the bottom of the collecting groove 4 and be centrally stored, which is convenient for subsequent cleaning and maintenance; the fixed filter plate 6 and the filter plate 7 cooperate with each other to achieve filtration of the liquid entering the top-mounted ball valve, enhance the cleanliness of the liquid, reduce the risk of wear of the ball and the chamber in the ball valve body 1 caused by impurity erosion, and effectively reduce the damage to the valve seat sealing surface caused by impurity accumulation, thereby increasing the service life of the top-mounted ball valve, avoiding the occurrence of problems such as ball valve leakage, jamming or failure, improving the reliability and stability of the ball valve, and reducing production losses and maintenance costs caused by downtime due to failures.

[0021] As a preferred technical solution of the present invention, the rotating assembly includes a rotating shaft 8, a fixed sleeve 9, a connecting sleeve 10 and a handle 11. The rotating shaft 8 is rotatably connected in the connecting tube 2, two fixed sleeves 9 are fixedly connected to one side of the filter plate 7, the fixed sleeve 9 is fixedly connected to the rotating shaft 8, a connecting sleeve 10 is fixedly connected to one side of the fixed filter plate 6, the connecting sleeve 10 is rotatably connected to the rotating shaft 8, and one end of the rotating shaft 8 penetrates the connecting tube 2 and is fixedly connected to the handle 11.

[0022] Specifically, for liquids that do not need to be filtered, the filter plate 7 can be moved from the attached Fig. 9 The shape shown in the figure is transformed into the shape shown in the figure Fig.10 As shown in the figure, the liquid can flow directly over the fixed filter plate 6 and the filter plate 7, thereby avoiding unnecessary pressure drop and energy consumption.

[0023] As a preferred technical solution of the present invention, the sampling assembly includes a connecting tube 24, a valve 25 and a sampling tube 26. The outer wall of one end of the connecting tube 2 close to the middle of the ball valve body 1 is fixedly connected to the connecting tube 24, and the other end of the connecting tube 24 is fixedly connected to the valve 25. One side of the valve 25 is fixedly connected to the sampling tube 26. The connecting tube 24 is located on one side of the filter plate 7 close to the middle of the ball valve body 1.

[0024] Specifically, after a period of use, the staff can open the valve 25, sample the filtered liquid in the pipeline through the sampling tube 26, and test the filtered liquid, thereby realizing the detection of the filtering effect of the fixed filter plate 6 and the filter plate 7. By comparing and analyzing the sample data at different time points, the filtering effect of the fixed filter plate 6 and the filter plate 7 can be intuitively evaluated, and potential filtering problems can be discovered and resolved in time, which not only helps to ensure the continued efficient operation of the ball valve, but also effectively extends its service life and reduces maintenance costs.

[0025] As a preferred technical solution of the present invention, one end of the rotating shaft 8 away from the handle 11 is fixedly connected to a threaded rod 28 , and the outer wall of the threaded rod 28 is threadedly connected to a fixing cap 12 , and one side of the fixing cap 12 is in contact with the outer wall of the connecting pipe 2 .

[0026] Specifically, after the rotating shaft 8 completes the switching of the shape of the filter plate 7, the fixing cap 12 and the threaded rod 28 can be used to fix the rotating shaft 8 by means of the tightening effect of the fixing cap 12 and the outer wall of the connecting tube 2, thereby preventing the filter plate 7 from shaking during use, improving the stability and reliability of the filter plate 7, ensuring the smoothness and continuity of the liquid when passing through the filter plate 7, and avoiding liquid leakage or pressure loss caused by shaking or displacement.

[0027] As a preferred technical solution of the present invention, a debris removal port 19 is opened on one side of the bottom of the collecting box 3, and a threaded ring 20 corresponding to the position of the debris removal port 19 is fixedly connected to the outer wall of the bottom of the collecting box 3, and a sealing cover 21 is threadedly connected to the outer wall of the threaded ring 20, and a sealing ring 23 is connected between the threaded ring 20 and the sealing cover 21, and an isolation component is connected inside the collecting box 3.

[0028] Specifically, when a large amount of impurities are accumulated at the bottom of the collection box 3, the sealing cover 21 can be opened to remove the impurities through the impurity removal port 19 to ensure the continuous and efficient operation of the filtration system; After the fixed filter plate 6 and the filter plate 7 have been used for a long time, some impurities will adhere to their surfaces, resulting in a decrease in the filtering effect. The fine impurities and pollutants in the liquid may not be effectively retained, thereby affecting the cleanliness of the outflowing liquid. At this time, the staff first closes the top-mounted ball valve, and then uses the handle 11 to rotate the shaft 8, which will drive the filter plate 7 to rotate, so that the filter plate 7 moves from the attached Fig. 9 The shape shown in the figure is transformed into the shape shown in the figure Fig.10 As shown in the figure, the fixed filter plate 6 and the filter plate 7 will completely cover the drop groove 5, and then the staff will open the sealing cover 21, and the liquid will flow out through the impurity removal port 19. In this process, the liquid will flush the fixed filter plate 6 and the filter plate 7, thereby cleaning the fixed filter plate 6 and the filter plate 7 and flushing away the impurities attached to their surfaces. This flushing method is not only simple to operate and efficient, but also can ensure that the fixed filter plate 6 and the filter plate 7 are thoroughly cleaned, and their filtering effect is restored, further ensuring the continuous and efficient operation of the filtering system.

[0029] As a preferred technical solution of the present invention, the isolation assembly includes a rotating rod 14, a baffle 15, a sealing strip 16 and a handle 17. Two symmetrically arranged rotating holes 29 are opened in the middle of the collecting box 3. The rotating rod 14 is rotatably connected in the rotating hole 29. The outer wall of the rotating rod 14 is fixedly connected to two baffles 15 symmetrically arranged about the center of the rotating rod 14. Two sealing strips 16 are fixedly connected to the inner wall of the collecting box 3. The positions of the sealing strips 16 and the baffles 15 correspond. One end of the rotating rod 14 penetrates the collecting box 3 and is fixedly connected to a connecting block 27. A handle 17 is fixedly connected to one side of the connecting block 27.

[0030] Specifically, when cleaning the impurities at the bottom of the collecting box 3, the staff can rotate the handle 17 to drive the rotating rod 14, and then drive the baffle 15, so that the baffle 15 and the sealing strip 16 fit tightly. At this time, with the cooperation of the baffle 15 and the sealing strip 16, the liquid cannot flow into the bottom of the collecting tank 4, thereby preventing the liquid from flowing out of the impurity removal port 19, ensuring that the cleaning process will not hinder the normal flow of the liquid, so that cleaning can be achieved without stopping the entire machine.

[0031] As a preferred technical solution of the present invention, one end of the rotating rod 14 away from the handle 17 is fixedly connected to the limiting screw 30 , and the outer wall of the limiting screw 30 is threadedly connected to the limiting cap 18 .

[0032] Specifically, through the cooperation between the limiting screw 30 and the limiting cap 18, the baffle 15 is fixed, avoiding the baffle 15 from shaking or shifting when cleaning impurities, so that even if the liquid generates a large impact force during the flushing process, the baffle 15 can remain stable, ensuring that no liquid will flow down from the gap.

[0033] As a preferred technical solution of the present invention, the outer walls of the fixing cap 12 and the limiting cap 18 are both provided with anti-slip grooves 13 .

[0034] Specifically, the anti-slip pattern 13 enhances the holding stability of the fixing cap 12 and the limiting cap 18. When the staff needs to rotate these parts, the anti-slip pattern 13 can provide additional friction, allowing the staff to apply force more easily, thereby avoiding operational errors caused by hand slippage. This design not only improves the convenience of operation, but also ensures the smooth progress of the entire replacement of accessories or maintenance process.

[0035] As a preferred technical solution of the present invention, an anti-slip sleeve 22 is fixedly connected to the outer wall of the sealing cover 21 .

[0036] Specifically, when opening or closing the sealing cover 21, the anti-slip cover 22 can provide additional gripping force, allowing the staff to more stably control the rotation of the sealing cover 21. Even when the hands are wet or greasy, the staff can easily complete the opening or closing operation of the sealing cover 21.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A top-entry ball valve for easy replacement of accessories, comprising a ball valve body (1), characterized in that: One end of the ball valve body (1) is fixedly connected to a connecting pipe (2), the bottom of the connecting pipe (2) is fixedly connected to a collecting box (3), a collecting groove (4) is provided inside the collecting box (3), the inner wall of the connecting pipe (2) is provided with a falling groove (5) connected to the collecting groove (4), the inner wall of the connecting pipe (2) is fixedly connected to a fixed filter plate (6), one side of the fixed filter plate (6) is connected to a filter plate (7), the outer edge of the filter plate (7) is in contact with the inner wall of the connecting pipe (2), one side of the filter plate (7) is connected to a rotating assembly, and the outer wall of the connecting pipe (2) is connected to a sampling assembly.

2. A top-entry ball valve for easy replacement of accessories according to claim 1, characterized in that: The rotating assembly comprises a rotating shaft (8), a fixing sleeve (9), a connecting sleeve (10) and a handle (11); the rotating shaft (8) is rotatably connected inside the connecting tube (2); two fixing sleeves (9) are fixedly connected to one side of the filter plate (7); the fixing sleeves (9) are fixedly connected to the rotating shaft (8); one side of the fixed filter plate (6) is fixedly connected to the connecting sleeve (10); the connecting sleeve (10) is rotatably connected to the rotating shaft (8); one end of the rotating shaft (8) penetrates the connecting tube (2) and is fixedly connected to the handle (11).

3. A top-entry ball valve for easy replacement of accessories according to claim 2, characterized in that: The sampling assembly comprises a connecting tube (24), a valve (25) and a sampling tube (26); the connecting tube (24) is fixedly connected to the outer wall of one end of the outer wall of the connecting tube (2) close to the middle of the ball valve body (1); the other end of the connecting tube (24) is fixedly connected to the valve (25); one side of the valve (25) is fixedly connected to the sampling tube (26); the connecting tube (24) is located on one side of the filter plate (7) close to the middle of the ball valve body (1).

4. A top-entry ball valve for easy replacement of accessories according to claim 3, characterized in that: The end of the rotating shaft (8) away from the handle (11) is fixedly connected to a threaded rod (28), the outer wall of the threaded rod (28) is threadedly connected to a fixing cap (12), and one side of the fixing cap (12) is in contact with the outer wall of the connecting pipe (2).

5. A top-entry ball valve for easy replacement of accessories according to claim 4, characterized in that: A debris removal opening (19) is provided at one side of the bottom of the collection box (3); a threaded ring (20) corresponding to the position of the debris removal opening (19) is fixedly connected to the outer wall of the bottom of the collection box (3); a sealing cover (21) is threadedly connected to the outer wall of the threaded ring (20); a sealing ring (23) is connected between the threaded ring (20) and the sealing cover (21); and an isolation component is connected inside the collection box (3).

6. A top-entry ball valve for easy replacement of accessories according to claim 5, characterized in that: The isolation assembly comprises a rotating rod (14), a baffle (15), a sealing strip (16) and a handle (17); two symmetrically arranged rotating holes (29) are provided in the middle of the collection box (3); the rotating rod (14) is rotatably connected in the rotating hole (29); the outer wall of the rotating rod (14) is fixedly connected to two baffles (15) symmetrically arranged about the center of the rotating rod (14); the inner wall of the collection box (3) is fixedly connected to two sealing strips (16); the sealing strips (16) and the baffles (15) are located at corresponding positions; one end of the rotating rod (14) penetrates the collection box (3) and is fixedly connected to a connecting block (27); one side of the connecting block (27) is fixedly connected to the handle (17).

7. A top-entry ball valve for easy replacement of accessories according to claim 6, characterized in that: One end of the rotating rod (14) away from the handle (17) is fixedly connected to a limiting screw (30), and the outer wall of the limiting screw (30) is threadedly connected to a limiting cap (18).

8. A top-entry ball valve for easy replacement of accessories according to claim 7, characterized in that: The outer walls of the fixing cap (12) and the limiting cap (18) are both provided with anti-slip grooves (13).

9. A top-entry ball valve for easy replacement of accessories according to claim 8, characterized in that: An anti-slip sleeve (22) is fixedly connected to the outer wall of the sealing cover (21).

Images