A kettle bottom ball valve with a leakage prevention structure

Abstract

The application discloses a kettle bottom ball valve with a leakage prevention structure, which comprises a U-shaped frame, a bottom valve shell is fixedly connected to the top of the U-shaped frame, a top valve shell is installed directly above the bottom valve shell, a first rubber strip is fixedly connected to the top of the bottom valve shell, the sealing performance of the connecting part of the bottom valve shell and the top valve shell can be improved, thereby achieving the effect of preventing leakage, the convex arc surface of the arc-shaped sliding plate is tightly attached to the arc-shaped concave surface of the arc-shaped hollow plate, thereby achieving the effect of plugging the discharge hole, the outer wall of the arc-shaped scraping rod can rotate along the inner wall of the ball valve body, and the adhered particles on the inner wall of the ball valve body can be removed, when the rotating disc is rotated, the arc-shaped sliding plate and the arc-shaped scraping rod at the top end of the stand will rotate together, at this time, the arc-shaped sliding plate can remove the particles accumulated at the discharge hole, meanwhile, the residual medium in the ball valve body can flow out from the discharge hole, after the residual medium is discharged, the convex arc surface of the arc-shaped sliding plate is reattached to the arc-shaped concave surface of the arc-shaped hollow plate, thereby avoiding the leakage of the medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kettle bottom ball valves, in particular to a kettle bottom ball valve with a leakage prevention structure. BACKGROUND

[0002] A kettle bottom ball valve is a valve installed at the bottom of a pressure container, mainly used for controlling and regulating the flow of medium in the container, and has the characteristics of rapid opening and closing, good sealing performance, simple structure, and convenient maintenance, and is widely used in the chemical, petroleum, pharmaceutical and other industries for cutting off or connecting the fluid in the pipeline.

[0003] When the kettle bottom ball valve is in use, the medium is cut off by rotating the ball valve, but a part of the medium may remain in the internal passage of the ball valve, which will be washed away only when the ball valve is opened next time. If the flowing medium cannot be retained for a long time, the part of the medium in the internal passage of the ball valve after being cut off is prone to change in quality, which will mix with the new medium when the ball valve is opened next time, and will affect the quality of the new medium, which is inconvenient to use. Based on these problems, a kettle bottom ball valve sealing assembly is disclosed in Chinese patent CN115654169A, which can conveniently discharge the remaining medium in the ball valve body. After the ball valve body cuts off the medium, the fixed bolt is rotated to unlock the sliding rod, which is pushed upward to move the pull rod upward, so that the plug moves upward to open the discharge hole. Then the auxiliary ring is rotated to lock the sliding rod under the cooperation of the mounting block. The remaining medium in the ball valve body flows out along the discharge hole and the sliding groove, achieving the purpose of conveniently discharging the remaining medium in the ball valve body, and being more simple and convenient to use, and having good practicability.

[0004] If the medium cut off by the ball valve body contains particles, part of the medium will adhere to the inner wall of the discharge hole when the medium is discharged from the discharge hole. If the particles accumulate below the plug, the bottom surface of the plug cannot be tightly attached to the top surface of the discharge hole, which may cause leakage of the medium. SUMMARY

[0005] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0006] To solve the above problems, the technical scheme of the present application is as follows.

[0007] The utility model provides a kettle bottom ball valve with anti -leak structure, including the U type frame, the top fixedly connected with bottom valve shell, the top of bottom valve shell installs the top valve shell, the top fixedly connected with first rubber strip of bottom valve shell, the bottom fixedly connected with second rubber strip of top valve shell, the top surface of first rubber strip and the bottom surface of second rubber strip are close, and the inside of bottom valve shell and top valve shell installs ball valve body, and the bottom center of bottom valve shell penetrates first shaft ring, and the outer wall top end of discharge pipe is rotatably connected with the inner wall of first shaft ring, and the outer wall top end of discharge pipe penetrates the bottom center of ball valve body vertically upwards, and the inner wall top end of discharge pipe is fixedly connected with arc hollow plate, and the one end of arc hollow plate is provided with the discharge hole of up and down penetration, and the top center of arc hollow plate penetrates the rubber ring vertically, and the inner wall of rubber ring is rotatably connected with stand, and the top end of stand is fixedly connected with arc slide plate, and the outer wall of one side of arc slide plate is fixedly connected with arc scraper.

[0008] As a further description of the above technical solutions:

[0009] The front end and the rear end of the bottom valve shell are fixedly connected with first mounting plates, the top ends of the first mounting plates are fixedly connected with first threaded rods, the bottom ends of the outer walls of the first threaded rods are sleeved with second mounting plates, the top ends of the outer walls of the first threaded rods are threadedly connected with first nuts, and the opposite surfaces of the second mounting plates are fixedly connected with the front end and the rear end of the top valve shell.

[0010] As a further description of the above technical solutions:

[0011] One end of the outer wall of the bottom valve shell and the top valve shell is fixedly connected with a first arc-shaped ring, the other end of the outer wall of the bottom valve shell and the top valve shell is fixedly connected with a second arc-shaped ring, the first arc-shaped ring and the second arc-shaped ring are both provided with two groups, and the sizes of the first arc-shaped ring and the second arc-shaped ring are the same.

[0012] As a further description of the above technical solutions:

[0013] One end of the inner wall of the bottom valve shell and the top valve shell is sleeved with an insertion ring, one end surface of the insertion ring is fixedly connected with an outer pipe, one end of the outer wall of the outer pipe is fixedly connected with a first flange, the first flange and the inner wall of the second arc-shaped ring are both inserted with second threaded rods, and one end of the outer wall of the second threaded rods is threadedly connected with second nuts.

[0014] As a further description of the above technical solutions:

[0015] One end surface of the outer wall of the outer pipe is fixedly connected with a second flange, the inner wall of the second flange is sleeved with a sleeve ring, the bottom end of the sleeve ring is fixedly connected with an inner pipe, the inner wall of the sleeve ring is fixedly connected with a first screen, and the inner wall of the inner pipe is fixedly connected with a second screen.

[0016] As a further description of the above technical solutions:

[0017] The bottom of the discharge pipe is fixedly connected with a hollow pipe, the bottom of the hollow pipe is fixedly connected with a second shaft ring, the inner wall of the second shaft ring is rotationally connected with a shaft core, and the bottom of the shaft core is fixedly connected with a rotating disc.

[0018] As a further description of the above technical solution:

[0019] The top of the shaft core is fixedly connected with a baffle disc, one end of the top of the baffle disc is fixedly connected with a scraping piece, the inner wall of the bottom end of the hollow pipe penetrates a discharge pipe, and the outer wall of one end of the discharge pipe is threadedly connected with a blocking cover.

[0020] As a further description of the above technical solution:

[0021] The bottom end of one side of the inner wall of the U-shaped frame is fixedly connected with a side block, a reset spring column is installed in the side block, and the bottom end of the reset spring column is fixedly connected with an insertion block.

[0022] As a further description of the above technical solution:

[0023] The outer wall of the second shaft ring is fixedly connected with a sector plate, the two ends of the sector plate are both provided with an upper and lower penetrating insertion hole, and the outer wall of the insertion block can be inserted with the inner wall of the insertion hole at the two ends of the sector plate.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] The opposite surfaces of the first rubber strip and the second rubber strip are tightly attached together, which can improve the sealing performance of the connecting part of the bottom valve shell and the top valve shell, thereby achieving the effect of preventing leakage, the convex arc surface of the arc-shaped sliding plate is tightly attached to the arc-shaped concave surface of the arc-shaped hollow plate, which plays a blocking role on the discharge hole, the outer wall of the arc-shaped scraping rod can rotate along the inner wall of the ball valve body, and the particles adhered to the inner wall of the ball valve body are removed, when the rotating disc is rotated, the arc-shaped sliding plate and the arc-shaped scraping rod at the top end of the stand will rotate together, at this time, the arc-shaped sliding plate will remove the particles accumulated at the discharge hole, and at the same time, the residual medium in the ball valve body will flow out from the discharge hole, after the residual medium is discharged, the convex arc surface of the arc-shaped sliding plate is reattached to the arc-shaped concave surface of the arc-shaped hollow plate, thereby avoiding the leakage of the medium.

[0026] By setting the connecting structure between the second mounting plate, the first threaded rod and the first nut, the bottom valve shell and the top valve shell can be fixed together, and by setting the simple connecting mode between the first nut and the first threaded rod, the disassembly and assembly steps between the bottom valve shell and the top valve shell are more convenient and fast.

[0027] By setting a second flange, the bottom ball valve can be fixed below the reactor. The outer wall of the collar is tightly attached to the inner wall of the second flange. When the medium flows into the collar, it will not flow into the gap between the outer wall of the collar and the inner wall of the second flange. This helps to improve the comprehensiveness of the medium screening by the first screen. The thickness of the collar is less than the thickness of the second flange. When the second flange is installed below the reactor, the surface of the second flange and the reactor connection position can be tightly attached, thereby preventing the medium from overflowing from the gap between the second flange and the reactor connection position, thus avoiding medium leakage. By setting a first screen and a second screen, large-volume particles in the medium can be filtered, which helps to improve the quality of the finished product of the outflowing medium.

[0028] When the turntable rotates, the baffle and scraper also rotate together. The scraper can rotate closely against the inner wall of the hollow tube, thereby removing the particles attached to the inner wall of the hollow tube. Both ends of the sector plate have through holes. The outer wall of the insert block is inserted into the inner wall of the holes at both ends of the sector plate, which fixes the sector plate and also prevents the ball valve body on the discharge pipe at the top of the hollow tube from rotating. By lifting the movable rod inside the reset spring column upward, the insert block can be pulled out from the sector plate, at which point the sector plate can rotate. Attached Figure Description

[0029] Figure 1 This is one of the structural schematic diagrams of the present invention;

[0030] Figure 2 This is the second structural schematic diagram of the present invention;

[0031] Figure 3 This is a front view of the present invention;

[0032] Figure 4 This is a front sectional view of the present invention;

[0033] Figure 5 For the present invention Figure 4 Enlarged view of a portion of region A in the middle;

[0034] Figure 6 For the present invention Figure 4 Enlarged view of a portion of region B in the middle.

[0035] The correspondence between the labels and component names in the attached figures is as follows:

[0036] 1, U-shaped frame; 2, bottom valve shell; 3, first mounting plate; 4, first threaded rod; 5, second mounting plate; 6, first nut; 7, top valve shell; 8, first arc-shaped ring; 9, second arc-shaped ring; 10, first rubber strip; 11, second rubber strip; 12, insertion ring; 13, outer tube; 14, first flange; 15, second threaded rod; 16, second nut; 17, second flange; 18, collar; 19, inner tube; 20, first screen; 21, second screen; 22, ball valve body; 23, first shaft ring; 24, discharge pipe; 25, arc-shaped hollow plate; 26, discharge hole; 27, rubber ring; 28, vertical rod; 29, arc-shaped sliding plate; 30, arc-shaped scraping rod; 31, hollow tube; 32, second shaft ring; 33, shaft core; 34, rotating disc; 35, baffle disc; 36, scraping blade; 37, discharge pipe; 38, blocking cover; 39, side block; 40, reset spring column; 41, insertion block; 42, fan-shaped plate. DETAILED DESCRIPTION

[0037] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0038] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0039] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" appearing in different places does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. The present application provides the following embodiments.

[0040] REFERENCE Figures 1-6The application provides a kettle bottom ball valve with a leakage prevention structure, which comprises a U-shaped frame 1, a bottom valve shell 2 is fixedly connected to the top of the U-shaped frame 1, first mounting plates 3 are fixedly connected to the front end and the rear end of the bottom valve shell 2, the top surface of the bottom valve shell 2 and the top surface of the first mounting plates 3 are arranged on the same horizontal plane, first threaded rods 4 are fixedly connected to the top of the two ends of the first mounting plates 3, second mounting plates 5 are sleeved on the bottom ends of the outer walls of the first threaded rods 4, first nuts 6 are threadedly connected to the top ends of the outer walls of the first threaded rods 4, top valve shells 7 are fixedly connected to the opposite surfaces of the second mounting plates 5, circular through holes are formed in the two ends of the second mounting plates 5, the outer walls of the first threaded rods 4 are vertically and upwardly penetrated through the circular through holes in the two ends of the second mounting plates 5, the first threaded rods 4 that are protruded out of the circular through holes are threadedly connected with the first nuts 6, the bottom surface of the second mounting plates 5 and the bottom surface of the top valve shells 7 are arranged on the same horizontal plane, and the bottom valve shell 2 and the top valve shell 7 can be fixed together through the connecting structure between the second mounting plates 5, the first threaded rods 4 and the first nuts 6.

[0041] First arc-shaped rings 8 are fixedly connected to one end of the outer walls of the bottom valve shell 2 and the top valve shell 7, second arc-shaped rings 9 are fixedly connected to the other end of the outer walls of the bottom valve shell 2 and the top valve shell 7, the sizes of the first arc-shaped rings 8 and the second arc-shaped rings 9 are the same, through holes are formed in the interiors of the first arc-shaped rings 8 and the second arc-shaped rings 9, first rubber strips 10 are fixedly connected to the top of the bottom valve shell 2, second rubber strips 11 are fixedly connected to the bottom of the top valve shell 7, the opposite surfaces of the first rubber strips 10 and the second rubber strips 11 are tightly attached to each other after the bottom valve shell 2 and the top valve shell 7 are fixed together, the sealing performance of the connecting part of the bottom valve shell 2 and the top valve shell 7 can be improved, thereby achieving the leakage prevention effect, plug rings 12 are sleeved on one end of the inner walls of the bottom valve shell 2 and the top valve shell 7, outer pipes 13 are fixedly connected to one end of the outer walls of the plug rings 12, first flanges 14 are fixedly connected to one end of the outer walls of the outer pipes 13, second threaded rods 15 are inserted into the inner walls of the first flanges 14 and the second arc-shaped rings 9, second nuts 16 are threadedly connected to one end of the outer walls of the second threaded rods 15, the inner diameter sizes of the through holes in the interiors of the first arc-shaped rings 8 and the second arc-shaped rings 9 are the same as the inner diameter size of the through hole in the interior of the first flange 14, the outer walls of the second threaded rods 15 can be sequentially penetrated through the through holes in the interiors of the first flange 14 and the second arc-shaped ring 9, the outer walls of the second threaded rods 15 that are protruded out of the second arc-shaped ring 9 are connected with the second nuts 16, the second arc-shaped ring 9 and the first flange 14 can be fixed together through the connecting structure between the second threaded rods 15 and the second nuts 16, at this time, the outer pipe 13 is fixed on the bottom valve shell 2 and the top valve shell 7, since the size of the first arc-shaped ring 8 is the same as the size of the second arc-shaped ring 9, the first flange 14 on the outer wall of the outer pipe 13 can also be fixed on the first arc-shaped ring 8, at this time, the installation position of the outer pipe 13 can be changed according to the use requirement of the kettle bottom ball valve.

[0042] The outer tube 13 is fixedly connected with the second flange 17 at the outer edge of one end surface, the second flange 17 can be fixed at the bottom of the reactor, the inner wall of the second flange 17 is sleeved with the sleeve ring 18, the bottom end of the inner wall of the sleeve ring 18 is fixedly connected with the inner tube 19, the bottom end of the inner wall of the sleeve ring 18 is fixedly connected with the first screen 20, the outer wall of the sleeve ring 18 is tightly attached to the inner wall of the second flange 17, when the medium flows into the sleeve ring 18, the medium will not flow into the gap between the outer wall of the sleeve ring 18 and the inner wall of the second flange 17, which is conducive to improving the comprehensiveness of the first screen 20 in screening the medium, the thickness of the sleeve ring 18 is smaller than the thickness of the second flange 17, when the second flange 17 is installed at the bottom of the reactor, the surface of the second flange 17 at the connection position with the reactor can be tightly attached together, thereby preventing the medium from overflowing from the gap at the connection position of the second flange 17 and the reactor, thereby avoiding the leakage of the medium, the bottom end of the inner wall of the inner tube 19 is fixedly connected with the second screen 21, through the setting of the first screen 20 and the second screen 21, the large volume particles in the medium can be filtered, which helps to improve the quality of the finished product of the flowing medium.

[0043] The ball valve body 22 is installed inside the bottom valve shell 2 and the top valve shell 7, the first shaft ring 23 penetrates the center of the bottom of the bottom valve shell 2, a circular hole is formed in the center of the bottom of the bottom valve shell 2, the outer wall of the first shaft ring 23 is installed in the circular hole in the center of the bottom of the bottom valve shell 2, the inner wall of the first shaft ring 23 is rotatably connected with the discharge pipe 24, the outer wall of the top end of the discharge pipe 24 penetrates the center of the bottom of the ball valve body 22 vertically upward, the inner wall of the top end of the discharge pipe 24 is fixedly connected with the arc hollow plate 25, the arc hollow plate 25 is provided with the discharge hole 26 penetrating upward and downward at one end, the center of the convex arc surface of the arc hollow plate 25 is vertically penetrated with the rubber ring 27, the center of the convex arc surface of the arc hollow plate 25 is provided with the hole penetrating upward and downward, the outer wall of the rubber ring 27 is installed in the hole in the inside of the arc hollow plate 25, the inner wall of the rubber ring 27 is rotatably connected with the vertical rod 28, the top end of the vertical rod 28 is fixedly connected with the arc sliding plate 29, the convex arc surface of the arc sliding plate 29 is tightly attached to the arc concave surface of the arc hollow plate 25, which plays a plugging role for the discharge hole 26, the outer wall of one side of the arc sliding plate 29 is fixedly connected with the arc scraping rod 30, the outer wall of the arc scraping rod 30 can rotate along the inner wall of the ball valve body 22, which can remove the particles adhered to the inner wall of the ball valve body 22, the bottom of the discharge pipe 24 is fixedly connected with the hollow pipe 31, the medium flowing out of the discharge hole 26 can flow into the hollow pipe 31 along the discharge pipe 24.

[0044] The bottom of the hollow pipe 31 is fixedly connected with a second shaft ring 32, the inner wall of the second shaft ring 32 is rotatably connected with a shaft core 33, the bottom of the shaft core 33 is fixedly connected with a rotating disc 34, when the rotating disc 34 rotates, the arc-shaped sliding plate 29 and the arc-shaped scraping rod 30 at the top of the vertical rod 28 will rotate together, the top of the shaft core 33 is fixedly connected with a baffle disc 35, by arranging the baffle disc 35, the flowing medium can be blocked, so that the medium is prevented from flowing into the second shaft ring 32, one end of the top of the baffle disc 35 is fixedly connected with a scraping piece 36, when the rotating disc 34 rotates, the baffle disc 35 and the scraping piece 36 will also rotate together, the scraping piece 36 can rotate tightly against the inner wall of the hollow pipe 31, so that the particles adhering to the inner wall of the hollow pipe 31 are removed, the inner wall bottom end of the hollow pipe 31 is penetrated through with a discharge pipe 37, one end of the outer wall of the discharge pipe 37 is threadedly connected with a blocking cover 38, the inner wall bottom end of the hollow pipe 31 is provided with a circular through hole, the other end of the outer wall of the discharge pipe 37 is installed in the circular through hole, the removed particles will be directly discharged from the discharge pipe 37, one side bottom end of the inner wall of the U-shaped frame 1 is fixedly connected with a side block 39, the side block 39 is installed with a reset spring column 40, the side block 39 is provided with an upper and lower penetrating circular hole, the outer wall of the reset spring column 40 is installed in the circular hole in the side block 39, the bottom end of the reset spring column 40 is fixedly connected with an insertion block 41, the reset spring column 40 can push the insertion block 41 to move downward, the outer wall of the second shaft ring 32 is fixedly connected with a sector plate 42, both ends of the sector plate 42 are provided with upper and lower penetrating insertion holes, the outer wall of the insertion block 41 is inserted with the inner wall of the insertion holes at both ends of the sector plate 42, which can fix the sector plate 42, and also prevent the ball valve body 22 on the top discharge pipe 24 of the hollow pipe 31 from rotating, when the movable rod in the reset spring column 40 is lifted upward, the insertion block 41 can be pulled out of the sector plate 42, at this time, the sector plate 42 can rotate.

[0045] The above is a further detailed description of the present application in combination with the specific embodiments, which cannot be regarded as a limitation of the specific embodiments of the present application. For ordinary skilled in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which shall be regarded as falling within the protection scope of the claims of the present application.

Claims

1. A kettle bottom ball valve with anti-leak structure, comprising a U-shaped frame (1), characterized in that: The U-shaped frame (1) top fixedly connected with bottom valve shell (2), the top of bottom valve shell (2) is equipped with top valve shell (7), bottom valve shell (2) top fixedly connected with first rubber strip (10), top valve shell (7) bottom fixedly connected with second rubber strip (11), the top surface of first rubber strip (10) and the bottom surface of second rubber strip (11) are close, bottom valve shell (2) and top valve shell (7) inside installation ball valve body (22), bottom valve shell (2) bottom center is penetrated with first axle ring (23), first axle ring (23) inner wall rotationally connected with discharge pipe (24), discharge pipe (24) outer wall top vertically upwards penetrates ball valve body (22) bottom center, discharge pipe (24) inner wall top fixedly connected with arc hollow plate (25), arc hollow plate (25) one end is equipped with up and down penetrates and discharges hole (26), arc hollow plate (25) top center vertically penetrates rubber ring (27), rubber ring (27) inner wall rotationally connected with vertical rod (28), vertical rod (28) top fixedly connected with arc slide plate (29), arc slide plate (29) one side outer wall fixedly connected with arc scraping rod (30), the discharge pipe (24) bottom fixedly connected with hollow tube (31), the hollow tube (31) bottom fixedly connected with second axle ring (32), the second axle ring (32) inner wall rotationally connected with axle core (33), the axle core (33) bottom fixedly connected with rotating disc (34), when rotating rotating disc (34), the arc slide plate (29) and arc scraping rod (30) of vertical rod (28) top will follow together rotation, the axle core (33) top fixedly connected with baffle disc (35), the baffle disc (35) top one end fixedly connected with scraping blade (36), the hollow tube (31) inner wall bottom end penetrates and is discharged pipe (37), the discharged pipe (37) outer wall one end is screwed with blocking cover (38).

2. A kettle bottom ball valve with anti-leak structure according to claim 1, characterized in that: The bottom valve shell (2) front end and rear end are fixedly connected with first mounting plate (3), the first mounting plate (3) top both ends are fixedly connected with first threaded rod (4), the first threaded rod (4) outer wall bottom end sleeve is connected with second mounting plate (5), the first threaded rod (4) outer wall top is all screwed with first nut (6), the opposite surface of second mounting plate (5) is fixedly connected with the front end and rear end of top valve shell (7).

3. The kettle bottom ball valve with anti-leakage structure according to claim 1, characterized in that: The outer wall one end of bottom valve shell (2) and top valve shell (7) is fixedly connected with first arc ring (8), the outer wall other end of bottom valve shell (2) and top valve shell (7) is fixedly connected with second arc ring (9), the first arc ring (8) and second arc ring (9) are all equipped with two groups, the size of first arc ring (8) and second arc ring (9) is all same.

4. The kettle bottom ball valve with anti-leakage structure according to claim 3, characterized in that: The bottom valve shell (2) and top valve shell (7) inner wall one end sleeve joint has the insert ring (12), one end surface of the insert ring (12) is fixedly connected with the outer tube (13), the outer tube (13) outer wall one end is fixedly connected with the first flange (14), the first flange (14) and second arc ring (9) inner wall all insert the second threaded rod (15), the second threaded rod (15) outer wall one end all is threadedly connected with the second nut (16).

5. A kettle bottom ball valve with anti-leak structure according to claim 4, characterized in that: The outer tube (13) one end surface outer edge is fixedly connected with the second flange (17), the second flange (17) inner wall sleeve joint has the sleeve ring (18), the sleeve ring (18) bottom is fixedly connected with the inner tube (19), the sleeve ring (18) inner wall bottom is fixedly connected with the first screen (20), the inner tube (19) inner wall bottom is fixedly connected with the second screen (21).

6. The kettle bottom ball valve with anti-leak structure according to claim 1, characterized in that: The U-shaped frame (1) inner wall one side bottom is fixedly connected with the side block (39), the side block (39) is installed with reset spring column (40), the reset spring column (40) bottom is fixedly connected with the insert block (41).

7. The kettle bottom ball valve with anti-leak structure according to claim 6, characterized in that: The second shaft ring (32) outer wall is fixedly connected with the sector plate (42), the sector plate (42) both ends are all provided with the upper and lower through -going insertion hole, the outer wall of the insert block (41) can be inserted with the inner wall of the insertion hole of sector plate (42) both ends.

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