A fixed hard seal ball valve

Abstract

The present invention belongs to the field of valve technology, and in particular to a fixed hard-sealed ball valve. It aims to solve the shortcomings of the prior art that there is no device for limiting the ball head and no corresponding filtering device in the fixed hard-sealed ball valve, which will affect the performance of the ball valve during long-term use. The present invention comprises a base, a valve shell is fixedly installed on the top of the base, a water inlet end and a water outlet end are respectively arranged on both sides of the valve shell, a support sleeve is fixedly installed on the top of the valve shell, and the ball valve also includes a valve core mechanism, which is installed in the valve shell. When the valve of the present invention is actually used, the ball valve core can be rotationally limited, so that when water is transported, the ball valve core can be kept in a stable position without changing. At the same time, when water is transported, the water can be filtered in advance, so as to avoid impurities in the valve and the problem of valve blockage, so that the valve can maintain normal circulation.

Description

Technical Field

[0001] The invention relates to the technical field of valves, and in particular to a fixed hard-sealed ball valve. Background Art

[0002] The fixed hard-sealed ball valve is a valve that uses a metal sealing pair. The sealing ring of the ball and the valve seat are made of metal materials. The valve is opened and closed by rotating the ball.

[0003] The working principle of the fixed hard-seal ball valve is to control the opening and closing of the valve by rotating the ball. The ball is fixed in the valve and does not move after being pressurized, but the seal is achieved through the movement of the valve seat. When the ball valve is rotated 90 degrees, the inlet and outlet of the pipeline are both spherical surfaces, thereby cutting off the fluid; conversely, when the ball valve is rotated 90 degrees, the inlet and outlet surfaces of the pipeline are both channel hole surfaces, and the fluid passes through the valve.

[0004] However, when operating a fixed hard-sealed ball valve, the ball head cannot be limited after the ball head is rotated and adjusted, so that when water flows through the ball, it is easy to impact the ball, causing the ball to rotate, which in turn affects the normal use of the ball valve. Furthermore, there is no relevant filtering mechanism in the current fixed hard-sealed ball valve. When water flows through the ball valve, impurities in the water will easily adhere to the inside of the ball valve, and it is inconvenient to clean it. During long-term use, it will affect the flow of the ball valve; In view of the above problems, the present invention document proposes a fixed hard-sealed ball valve. Summary of the invention

[0005] The present invention provides a fixed hard-sealed ball valve, which solves the problem that the fixed hard-sealed ball valve in the prior art has no device for limiting the ball head and no corresponding filtering device, which affects the performance of the ball valve during long-term use.

[0006] The present invention provides the following technical solutions: A fixed hard-sealed ball valve comprises a base, a valve housing is fixedly mounted on the top of the base, a water inlet end and a water outlet end are respectively arranged on both sides of the valve housing, a support sleeve is fixedly mounted on the top of the valve housing, and the ball valve further comprises: A valve core mechanism, the valve core mechanism is installed in the valve housing, the top of the valve core mechanism penetrates the support sleeve and extends to the top of the support sleeve, an adjustment mechanism is installed on the top of the valve core mechanism, the adjustment mechanism includes a mounting cover fixedly installed on the top of the support sleeve, a transmission assembly is connected to the inner wall of one side of the mounting cover, the transmission assembly is connected to the top of the valve core mechanism, the top of the transmission assembly penetrates the top inner wall of the mounting cover and extends to the top of the mounting cover, a ball head rod is connected to the transmission assembly, an arc-shaped slide rail is fixedly installed on the top of the mounting cover, two ball-shaped grooves are provided on the top of the arc-shaped slide rail, and the bottom ends of the ball head rod are respectively connected to the two ball-shaped grooves; The filtering mechanism comprises a supporting assembly installed in the water inlet end, the supporting assembly is connected with a mesh cover, and the mesh cover is used for pre-filtering the water entering the ball valve.

[0007] In one possible design, the valve core mechanism includes a supporting ball shell tightly fixed in the valve housing, a sealing ball shell fixedly installed in the supporting ball shell, flow holes are opened on the inner walls on both sides of the supporting ball shell and the inner walls on both sides of the sealing ball shell, a ball valve core is tightly and rotatably connected in the sealing ball shell, the ball valve core is movably connected to the corresponding two flow holes respectively, a valve stem is fixedly installed on the top of the ball valve core, the valve stem is positioned to pass through the supporting sleeve and extend into the mounting cover, the top of the valve stem is connected to the transmission assembly, and a plurality of partitions are fixed on the valve stem at equal intervals, all of which are located in the supporting sleeve, and the plurality of partitions are fixedly connected to the inner wall of the support sleeve.

[0008] In a possible design, the transmission assembly includes a support tube that passes through an inner wall of one side of the mounting cover and is fixedly connected to an inner wall of one side of the mounting cover, a first handwheel rod passes through the support tube and is rotatably connected, an active bevel gear is fixedly installed at one end of the first handwheel rod, and an adjusting bevel gear is fixedly installed at the top end of the valve stem, and the active bevel gear is meshed with the adjusting bevel gear.

[0009] In a possible design, the transmission assembly also includes a mounting shaft fixedly mounted at the top center position of the adjusting bevel gear, the top end of the mounting shaft passes through the top inner wall of the mounting cover and extends to the top of the mounting cover, the mounting shaft is rotatably connected to the top inner wall of the mounting cover, a support plate is fixedly mounted on the top end of the mounting shaft, an L-shaped slide plate is fixedly mounted on one side of the bottom of the support plate, a slide groove is provided on the inner side of the arc-shaped slide rail, the bottom of the L-shaped slide plate extends into the slide groove and is slidably connected to the inner wall of the slide groove, and the ball head rod passes through the support plate and is slidably connected to the support plate.

[0010] In a possible design, the ball head rod is sleeved with a tension spring located above the support plate, and the top and bottom ends of the tension spring are fixedly connected to the top of the ball head rod and the top of the support plate respectively.

[0011] In one possible design, the support assembly includes a support ring fixedly installed in the water inlet end, an annular groove is provided on one side of the support ring, a first magnet ring is fixedly installed in the annular groove, a second magnet ring is attracted to one side of the first magnet ring, a docking ring is fixedly installed on one side of the second magnet ring, and one side of the docking ring passes through the support ring and is fixedly connected to the opening of the mesh cover.

[0012] In a possible design, a first clamping ring is fixedly installed in the support ring, and a plurality of arc-shaped grooves are evenly spaced on the inner wall of the first clamping ring. A second clamping ring is fixedly sleeved on the docking ring, and a plurality of clamping protrusions are evenly spaced on the second clamping ring. The plurality of clamping protrusions are respectively engaged with the corresponding arc-shaped grooves.

[0013] In a possible design, a rotating shaft is rotatably connected through an inner wall of one side of the mesh cover, a scraper rod is fixedly installed on one end of the rotating shaft located in the mesh cover, the scraper rod is in contact with an inner wall of one side of the mesh cover, a driven bevel gear is fixedly installed on one end of the rotating shaft located in the water inlet end, a second handwheel rod is rotatably connected through the top inner wall of the water inlet end, a transmission bevel gear is fixedly installed on the bottom end of the second handwheel rod, and the transmission bevel gear is meshed with the driven bevel gear.

[0014] In the present invention, firstly, after the second magnet ring is inserted into the annular groove, it can be attracted with the first magnet ring, and the docking ring can be attracted and positioned, so that the mesh cover can be installed and positioned. When installing the docking ring, the second clamping ring can be inserted into the first clamping ring, and the clamping protrusion can be inserted into the corresponding arc-shaped groove, so that the docking ring can be rotationally limited to prevent the mesh cover from rotating. Then, the water inlet and the water outlet are respectively connected to the two side pipes for conveying water, so that the water can be conveyed stably after passing through the ball valve. In actual use, , by rotating the first handwheel rod to drive the active bevel gear to rotate, at this time, under the meshing transmission action with the adjusting bevel gear, the valve stem can be driven to rotate, so that the ball valve core can be driven to rotate 90° in the forward or reverse direction, so that the ball valve core and the corresponding two flow holes are connected or disconnected, so that the ball valve can be in an open state or a closed state. When the adjusting bevel gear rotates, the support plate can be driven to rotate through the mounting shaft, and the ball head rod can be driven to move in an arc shape, so that when the forward and reverse ball valve cores are rotated 90°, the ball head can be The rods move to the top of the two ball grooves respectively. At this time, the tension spring in a stressed state can pull the ball head rod downward, so that the ball head rod can automatically move into the ball groove, so that the ball head rod can be clamped with the corresponding ball groove, so that the valve stem can be positioned, and the ball valve core can be further braked, so that the ball valve core will not rotate at will, and the ball valve can maintain stable operation. When water flows into the right water inlet end, the mesh cover can be used to filter the water, so as to filter the impurities in the water, and after a period of use, the second The handwheel rod drives the transmission bevel gear to rotate, and at this time, under the meshing transmission action with the driven bevel gear, it can drive the rotating shaft to rotate, thereby driving the scraper rod to rotate, and at this time, the dirt attached to the inner wall of the mesh cover can be scraped off, the mesh cover is cleaned, and the mesh cover is kept to have good fluidity, and there is no need to frequently disassemble the mesh cover from the water inlet end for cleaning, so it has good ease of use, and after using it for a period of time, the valve can be disassembled, and then the docking ring can be removed from the water inlet end to facilitate the cleaning of impurities dropped in the mesh cover.

[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0016] Beneficial effects: In the present invention, the valve core mechanism is provided, and the valve stem can be driven to rotate by operating the transmission assembly, thereby driving the ball valve core to rotate, so that the ball valve core is connected or disconnected with the corresponding two flow holes, so that the ball valve can be in an open state or a closed state; In the present invention, the adjustment mechanism is provided, and the active bevel gear can be driven to rotate by rotating the first hand wheel rod. At this time, under the meshing transmission effect with the adjustment bevel gear, the valve stem can be driven to rotate, thereby driving the ball valve core to rotate and adjust; When the adjusting bevel gear rotates, the support plate can be driven to rotate through the mounting shaft, and the ball head rod can be driven to perform arc motion. Therefore, when the forward and reverse ball valve cores are rotated 90°, the ball head rod can be moved to the top of the two ball grooves respectively, so that the ball head rod can be clamped with the corresponding ball grooves, so that the valve stem can be positioned, and the ball valve core can be braked further, so that the ball valve core will not rotate at will; In the present invention, the filter mechanism is provided, and after the second magnet ring is inserted into the annular groove, it can be attracted to the first magnet ring, and the docking ring can be attracted to position, so that the mesh cover can be installed and positioned; By rotating the second hand wheel rod, the transmission bevel gear is driven to rotate. At this time, under the meshing transmission action with the driven bevel gear, the rotating shaft can be driven to rotate, thereby driving the scraper rod to rotate. At this time, the dirt attached to the inner wall of the mesh cover can be scraped off, the mesh cover is cleaned, and the mesh cover is kept with good fluidity. There is no need to frequently disassemble the mesh cover from the water inlet end for cleaning, so it has good convenience in use.

[0017] When the valve of the present invention is actually used, the rotation of the ball valve core can be limited, so that when water is transported, the ball valve core can be kept in a stable position without changing. At the same time, when water is transported, the water can be filtered in advance, so as to avoid impurities in the valve and the problem of valve clogging, so that the valve can maintain normal circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional schematic diagram of the overall structure of a fixed hard-sealed ball valve provided in an embodiment of the present invention; Figure 2 A three-dimensional schematic diagram of a partial cross-sectional structure of a fixed hard-sealed ball valve provided in an embodiment of the present invention; Figure 3 A three-dimensional schematic diagram of the side cross-sectional structure of a fixed hard-sealed ball valve provided in an embodiment of the present invention; Figure 4 A three-dimensional schematic diagram of the connection structure of the first hand wheel rod, the valve stem and the valve core of the fixed hard-sealed ball valve provided in an embodiment of the present invention; Figure 5 A three-dimensional schematic diagram of the separation structure of the ball head rod and the arc-shaped slide rail of the fixed hard-sealed ball valve provided in an embodiment of the present invention; Figure 6A three-dimensional schematic diagram of the connection structure between the support ring and the mesh cover of a fixed hard-seal ball valve provided in an embodiment of the present invention; Figure 7 A three-dimensional schematic diagram of the support ring and mesh cover separation structure of a fixed hard-seal ball valve provided in an embodiment of the present invention; Figure 8 A three-dimensional schematic diagram of the connection structure of the support ring, the first magnet ring and the first clamping ring of the fixed hard-sealed ball valve provided in an embodiment of the present invention.

[0019] Reference numerals: 1. Base; 2. Valve housing; 3. Water inlet end; 4. Water outlet end; 5. Support sleeve; 6. Support ball shell; 7. Sealing ball shell; 8. Ball valve core; 9. Valve stem; 10. Partition; 11. Adjusting bevel gear; 12. Mounting cover; 13. Support pipe; 14. First hand wheel rod; 15. Active bevel gear; 16. Mounting shaft; 17. Support plate; 18. Ball head rod; 19. Tension spring; 20. L-shaped slide plate; 21. Arc slide rail; 22. Ball groove; 23. Support ring; 24. Docking ring; 25. First magnet ring; 26. Second magnet ring; 27. First clamping ring; 28. Arc groove; 29. ​​Net cover; 30. Second clamping ring; 31. Clamping protrusion; 32. Rotating shaft; 33. Scraper rod; 34. Second hand wheel rod; 35. Transmission bevel gear; 36. Driven bevel gear. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0022] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0023] In the embodiments of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0024] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0025] Example 1: Reference Figure 1-8 A ball valve includes a base 1, a valve housing 2 is fixedly mounted on the top of the base 1, and a water inlet 3 and a water outlet 4 are respectively arranged on both sides of the valve housing 2 for connecting a pipeline to realize fluid input and output. A support sleeve 5 is fixedly mounted on the top of the valve housing 2 for supporting and fixing the valve core mechanism.

[0026] The valve core mechanism is the core component of the ball valve, which is used to control the flow of fluid. The valve core mechanism is installed in the valve housing 2, and its top end passes through the support sleeve 5 and extends to the top of the support sleeve 5. The valve core mechanism includes a supporting ball shell 6 tightly fixed in the valve housing 2, and a sealing ball shell 7 is fixedly installed in the supporting ball shell 6, and the two together constitute the main structure of the valve core mechanism. Flow holes are opened on the inner walls on both sides of the supporting ball shell 6 and the sealing ball shell 7 for the passage of fluid. A ball valve core 8 is tightly and rotatably connected in the sealing ball shell 7, and the ball valve core 8 is movably connected to the corresponding two flow holes respectively. The connection state of the flow holes can be controlled by rotating the ball valve core 8, thereby realizing the opening and closing of the valve.

[0027] A valve stem 9 is fixedly mounted on the top of the ball valve core 8, and the positioning of the valve stem 9 passes through the support sleeve 5 and extends into the mounting cover 12. The mounting cover 12 is fixedly mounted on the top of the support sleeve 5, and is used to install and fix the transmission assembly. The transmission assembly includes a support tube 13 that passes through the inner wall of one side of the mounting cover 12 and is fixedly connected to the mounting cover 12, and a first handwheel rod 14 is rotatably connected to the support tube 13. An active bevel gear 15 is fixedly mounted on one end of the first handwheel rod 14, and an adjusting bevel gear 11 is fixedly mounted on the top of the valve stem 9, and the active bevel gear 15 is meshed with the adjusting bevel gear 11. By rotating the first handwheel rod 14, the active bevel gear 15 can be driven to rotate, and then the valve stem 9 can be driven to rotate through the adjusting bevel gear 11, and finally the rotation adjustment of the ball valve core 8 is realized.

[0028] In order to position and brake the valve stem 9 and prevent the ball valve core 8 from rotating at will, the present invention also provides components such as an arc-shaped slide rail 21 and a ball head rod 18. The arc-shaped slide rail 21 is fixedly installed on the top of the mounting cover 12, and two ball grooves 22 are opened on the top of the arc-shaped slide rail 21. The transmission assembly also includes a mounting shaft 16 fixedly installed at the top center position of the adjusting bevel gear 11. The top end of the mounting shaft 16 penetrates the top inner wall of the mounting cover 12 and extends to the top of the mounting cover 12, and is rotatably connected to the top inner wall of the mounting cover 12. A support plate 17 is fixedly installed on the top of the mounting shaft 16, and an L-shaped slide plate 20 is fixedly installed on one side of the bottom of the support plate 17. The bottom of the L-shaped slide plate 20 extends into the slide groove of the arc-shaped slide rail 21 and is slidably connected to the inner wall of the slide groove. The ball head rod 18 penetrates the support plate 17 and is slidably connected to the support plate 17. At the same time, a tension spring 19 located above the support plate 17 is sleeved, and the top and bottom ends of the tension spring 19 are respectively fixedly connected to the top of the ball head rod 18 and the top of the support plate 17.

[0029] When the bevel gear 11 is rotated, the support plate 17 can be driven to rotate through the mounting shaft 16, thereby driving the ball head rod 18 to move in an arc shape. When the ball valve core 8 needs to be rotated 90 degrees, the ball head rod 18 will be moved to the top of the corresponding ball groove 22. At this time, the tension spring 19 in a stressed state will pull the ball head rod 18 downward, so that it automatically moves into the ball groove 22, thereby positioning the valve stem 9 and further braking the ball valve core 8.

[0030] In addition, the present invention is also provided with a filtering mechanism for pre-filtering the water entering the ball valve. The filtering mechanism includes a support assembly and a mesh cover 29 installed in the water inlet end 3. The support assembly includes a support ring 23 fixedly installed in the water inlet end 3, and a ring groove is provided on one side of the support ring 23, and a first magnet ring 25 is fixedly installed in the ring groove. A second magnet ring 26 is attracted to one side of the first magnet ring 25, and a docking ring 24 is fixedly installed on one side of the second magnet ring 26, and one side of the docking ring 24 passes through the support ring 23 and is fixedly connected to the opening of the mesh cover 29. After the second magnet ring 26 is inserted into the ring groove, it can be attracted to the first magnet ring 25, and the docking ring 24 can be attracted and positioned, thereby realizing the installation and positioning of the mesh cover 29.

[0031] The present application can be used in the field of valve technology, and can also be used in other fields applicable to the present application.

[0032] Example 2: Reference Figure 6-8 , improved on the basis of the first embodiment: a fixed hard-sealed ball valve, which is applied to the field of valve technology, in order to prevent the mesh cover 29 from rotating, a first clamping ring 27 is fixedly installed in the support ring 23, and a plurality of arc-shaped grooves 28 are evenly spaced on the inner wall of the first clamping ring 27. A second clamping ring 30 is fixedly sleeved on the docking ring 24, and a plurality of clamping protrusions 31 are evenly spaced on the second clamping ring 30, and the plurality of clamping protrusions 31 are respectively engaged with the corresponding arc-shaped grooves 28. In this way, when the second clamping ring 30 is inserted into the first clamping ring 27, the clamping protrusions 31 will be inserted into the corresponding arc-shaped grooves 28, thereby limiting the rotation of the docking ring 24.

[0033] In order to facilitate cleaning of dirt on the mesh cover 29, a rotating shaft 32 is rotatably connected to one side of the inner wall of the mesh cover 29, and a scraper rod 33 is fixedly installed at one end of the rotating shaft 32 located in the mesh cover 29, and the scraper rod 33 contacts one side of the inner wall of the mesh cover 29. A driven bevel gear 36 is fixedly installed at one end of the rotating shaft 32 located in the water inlet end 3, and a second hand wheel rod 34 is rotatably connected to the top inner wall of the water inlet end 3, and a transmission bevel gear 35 is fixedly installed at the bottom end of the second hand wheel rod 34, and the transmission bevel gear 35 is meshed with the driven bevel gear 36. The second hand wheel rod 34 is rotated to drive the transmission bevel gear 35 to rotate, and then the rotating shaft 32 is driven to rotate by the driven bevel gear 36, and finally the scraper rod 33 is rotated. At this time, the scraper rod 33 will scrape off the dirt attached to the inner wall of the mesh cover 29, clean the mesh cover 29, and maintain its good fluidity.

[0034] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A fixed hard-sealed ball valve, comprising a base (1), a valve housing (2) fixedly mounted on the top of the base (1), a water inlet (3) and a water outlet (4) respectively disposed on both sides of the valve housing (2), a support sleeve (5) fixedly mounted on the top of the valve housing (2), characterized in that: The ball valve also includes: A valve core mechanism, the valve core mechanism is installed in the valve housing (2), the top end of the valve core mechanism penetrates the support sleeve (5) and extends to the top of the support sleeve (5), an adjustment mechanism is installed at the top end of the valve core mechanism, the adjustment mechanism comprises a mounting cover (12) fixedly mounted on the top end of the support sleeve (5), a transmission assembly is connected to the inner wall of one side of the mounting cover (12), the transmission assembly is connected to the top end of the valve core mechanism, the top end of the transmission assembly penetrates the inner wall of the top end of the mounting cover (12) and extends to the top end of the mounting cover (12), a ball head rod (18) is connected to the transmission assembly, an arc-shaped slide rail (21) is fixedly mounted on the top of the mounting cover (12), two ball-shaped grooves (22) are provided on the top of the arc-shaped slide rail (21), and the bottom ends of the ball head rod (18) are respectively connected to the two ball-shaped grooves (22); The filtering mechanism comprises a supporting assembly installed in the water inlet end (3), a mesh cover (29) being connected to the supporting assembly, and the mesh cover (29) is used to pre-filter water entering the ball valve.

2. The fixed hard-sealed ball valve according to claim 1, characterized in that: The valve core mechanism comprises a supporting ball shell (6) tightly fixedly mounted in the valve housing (2), a sealing ball shell (7) fixedly mounted in the supporting ball shell (6), flow holes being provided on both inner walls of the supporting ball shell (6) and both inner walls of the sealing ball shell (7), a ball valve core (8) being tightly rotatably connected in the sealing ball shell (7), the ball valve core (8) being movably connected to the two corresponding flow holes respectively, a valve stem (9) being fixedly mounted on the top of the ball valve core (8), the valve stem (9) being positioned to penetrate the supporting sleeve (5) and extend into the mounting cover (12), the top end of the valve stem (9) being connected to the transmission assembly, a plurality of partitions (10) being fixedly mounted on the valve stem (9) at equal intervals and all being located in the supporting sleeve (5), the plurality of partitions (10) being fixedly connected to the inner wall of the supporting sleeve (5).

3. The fixed hard-sealed ball valve according to claim 2, characterized in that: The transmission assembly comprises a support tube (13) which passes through an inner wall of one side of the mounting cover (12) and is fixedly connected to the inner wall of one side of the mounting cover (12); a first hand wheel rod (14) passes through the support tube (13) and is rotatably connected thereto; an active bevel gear (15) is fixedly mounted on one end of the first hand wheel rod (14); and an adjusting bevel gear (11) is fixedly mounted on the top end of the valve stem (9); the active bevel gear (15) meshes with the adjusting bevel gear (11).

4. The fixed hard-sealed ball valve according to claim 3, characterized in that: The transmission assembly further comprises a mounting shaft (16) fixedly mounted at the top center position of the adjusting bevel gear (11), the top end of the mounting shaft (16) passing through the top inner wall of the mounting cover (12) and extending to the top of the mounting cover (12), the mounting shaft (16) being rotatably connected to the top inner wall of the mounting cover (12), a support plate (17) being fixedly mounted on the top end of the mounting shaft (16), an L-shaped slide plate (20) being fixedly mounted on one side of the bottom of the support plate (17), a slide groove being provided on the inner side of the arc-shaped slide rail (21), the bottom of the L-shaped slide plate (20) extending into the slide groove and being slidably connected to the inner wall of the slide groove, and a ball head rod (18) passing through the support plate (17) and being slidably connected to the support plate (17).

5. The fixed hard-sealed ball valve according to claim 4, characterized in that: The ball head rod (18) is sleeved with a tension spring (19) located above the support plate (17), and the top and bottom ends of the tension spring (19) are fixedly connected to the top of the ball head rod (18) and the top of the support plate (17), respectively.

6. The fixed hard-sealed ball valve according to claim 1, characterized in that: The support assembly comprises a support ring (23) fixedly mounted in the water inlet end (3); an annular groove is provided on one side of the support ring (23); a first magnet ring (25) is fixedly mounted in the annular groove; a second magnet ring (26) is attracted to one side of the first magnet ring (25); a docking ring (24) is fixedly mounted on one side of the second magnet ring (26); one side of the docking ring (24) passes through the support ring (23) and is fixedly connected to an opening of the mesh cover (29).

7. The fixed hard-sealed ball valve according to claim 6, characterized in that: A first clamping ring (27) is fixedly installed in the support ring (23), and a plurality of arc-shaped grooves (28) are formed on the inner wall of the first clamping ring (27) at equal intervals. A second clamping ring (30) is fixedly sleeved on the docking ring (24), and a plurality of clamping protrusions (31) are formed on the second clamping ring (30) at equal intervals. The plurality of clamping protrusions (31) are respectively engaged with corresponding arc-shaped grooves (28).

8. The fixed hard-sealed ball valve according to claim 1, characterized in that: A rotating shaft (32) is rotatably connected to an inner wall of one side of the mesh cover (29); a scraper rod (33) is fixedly mounted on one end of the rotating shaft (32) located in the mesh cover (29); the scraper rod (33) is in contact with an inner wall of one side of the mesh cover (29); a driven bevel gear (36) is fixedly mounted on one end of the rotating shaft (32) located in the water inlet end (3); a second hand wheel rod (34) is rotatably connected to the top inner wall of the water inlet end (3); a transmission bevel gear (35) is fixedly mounted on the bottom end of the second hand wheel rod (34); the transmission bevel gear (35) is meshed with the driven bevel gear (36).

Images