Split mounting type high-sealing wear-resistant ball valve

Abstract

The utility model discloses a split mounting type high-sealing wear-resistant ball valve which comprises an outer shell, one end of the outer shell is fixedly connected with a guide pipe, one end of the guide pipe is fixedly connected with a connecting disc, a connecting hole is formed in the surface of the connecting disc, a spherical groove is formed in one end of the interior of the outer shell, and the spherical groove is connected with the guide pipe. A spherical valve element is rotatably mounted on the surface of the inner side of the spherical groove, a mounting cavity is formed in the spherical groove, a guide cavity is formed in one end of the interior of the mounting cavity, a sealing column is slidably mounted in the mounting cavity, a guide column is fixedly connected to one end of the sealing column, and the guide column is fixedly connected to the other end of the sealing column. The guide column is connected to the interior of the guide cavity in a sliding mode, a sealing ball groove is formed in the other end of the sealing column, a spherical sealing gasket is fixedly attached to the interior of the sealing ball groove, the spherical sealing gasket at the end is combined for pressing and sealing, rotation adjustment is not interfered, meanwhile, attaching sealing can be achieved, precision and stability are achieved, assembling and positioning are facilitated, and adaptability is high.

Description

Technical Field

[0001] This utility model relates to the field of ball valves, and more specifically, to an assembled high-sealing wear-resistant ball valve. Background Technology

[0002] A ball valve is a valve in which a ball is driven by a valve stem and rotates around the axis of the valve stem. It is mainly used to cut off or connect the medium in a pipeline, and can also be used for fluid regulation and control.

[0003] The utility model patent with authorization announcement number CN 205937939 U relates to a high-temperature hard-seal wear-resistant ball valve, which mainly solves the problem of poor heat dissipation in existing high-temperature hard-seal wear-resistant ball valves. The valve body contains a ball driven to rotate by a valve stem. Valve seats with sealing fit are located on both sides of the ball. A bracket is bolted to the top of the valve body. The connection between the bracket and the valve body is stepped. A connecting flange is located above the bracket, with a beveled transition between the flange and the bracket. Heat dissipation fins, which are strip-shaped and perpendicular to the bracket, are located around the bracket. A sealing ring, an elastic element, and a pressure ring are sequentially arranged at the connection between the valve seat and the valve body. The sealing ring and pressure ring are made of flexible graphite sandwiched with metal. This high-temperature hard-seal wear-resistant ball valve has a reasonable and simple structural design. The heat dissipation fin structure effectively dissipates heat, greatly increasing the valve's heat dissipation effect. Simultaneously, it has good sealing performance, strong stability, and extends the valve's service life.

[0004] The above-disclosed structure uses an integrated valve body to connect the valve core, lacking a separate outer shell for alignment and installation. This can easily cause interference, affecting disassembly and maintenance. Furthermore, the lack of internally assembled sealing and guide pillars prevents them from being combined and pressed for positioning, affecting the sealing effect and resulting in poor adaptability. Improvements are needed. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a modular high-sealing wear-resistant ball valve. It can be installed separately by connecting the mating plate at one end of the outer shell with the mating screw, which is conducive to the assembly and positioning with the ball valve core and avoids interference. Furthermore, the sealing column and guide column are installed through the internal mounting cavity, and the ball sealing gasket at the end is used to press and seal, which will not interfere with the rotation adjustment. At the same time, it can fit and seal precisely and stably, which is conducive to assembly and positioning and has high adaptability.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A modular, high-sealing, wear-resistant ball valve includes an outer shell. A guide tube is fixedly connected to one end of the outer shell, and a connecting disc is fixedly connected to one end of the guide tube. The connecting disc has a connecting hole on its surface. A spherical groove is provided inside one end of the outer shell. A spherical valve core is rotatably mounted on the inner surface of the spherical groove. An installation cavity is provided inside the spherical groove. A guide cavity is provided inside one end of the installation cavity. A sealing column is slidably mounted inside the installation cavity. A guide column is fixedly connected to one end of the sealing column and slidably connected inside the guide cavity. A sealing ball groove is provided inside the other end of the sealing column. A spherical sealing gasket is fixedly fitted inside the sealing ball groove and pressed tightly against both sides of the spherical valve core. A mating through hole is provided inside the guide column and the sealing column. A mating disc is fixedly connected to the other end of the outer shell. A mating screw is threaded onto the side of the mating disc, and the mating disc is fixedly connected to the joint between two outer shells.

[0008] Furthermore, one end surface of the sealing column is provided with positioning holes, which are evenly distributed at equal angles on the side of the guide column.

[0009] Furthermore, a clamping spring is fixedly connected inside the positioning hole, and the clamping spring is clamped to the inside of the mounting cavity.

[0010] Furthermore, the clamping springs are circumferentially distributed at equal angles on the outer surface of the guide post. They are connected to the clamping screws through the positioning holes at one end of the sealing post, and are circumferentially distributed on the side of the guide post. They can be combined and positioned to clamp the sealing post and ensure sealing stability. They are also convenient for separate assembly and use, and have high adaptability.

[0011] Furthermore, a semi-circular docking cylinder is fixedly connected to one side of the outer shell, and the semi-circular docking cylinder is fixedly connected to one side of the docking plate.

[0012] Furthermore, a valve stem is rotatably mounted inside the semi-circular connecting cylinder, and one end of the valve stem is fixedly connected to the upper end of the spherical valve core.

[0013] Furthermore, one end of the valve stem is fixedly connected to an installation head, which is rotatably mounted on the upper surface of the semi-circular connecting cylinder. The valve stem and the installation head are installed through the semi-circular connecting cylinder, allowing for separate splicing and positioning, which facilitates the rotation of the valve stem, makes it convenient to combine and use, and ensures stability and efficiency.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution connects the mating screws to the mating plate at one end of the outer shell, which can be installed separately, which is conducive to the assembly and positioning with the ball valve core and avoids interference. Furthermore, the sealing column and guide column are installed through the internal installation cavity, and the ball sealing gasket at the end is pressed to seal, which will not interfere with the rotation adjustment. At the same time, it can fit and seal, which is precise and stable, which is conducive to assembly and positioning and has high adaptability.

[0016] (2) The top screw is connected through the positioning hole at one end of the sealing column and is distributed circumferentially on the side of the guide column. It can be combined and positioned to tighten the sealing column to ensure sealing stability. It is convenient to assemble and use separately and has high adaptability.

[0017] (3) The valve stem and the mounting head are installed by the semi-circular connecting cylinder, which can be spliced ​​and positioned separately, which is conducive to supporting the rotation of the valve stem, making it convenient to combine and use, and stable and efficient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0020] Figure 3 This is a partial internal schematic diagram of the outer casing of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the sealing column and the guide column of this utility model;

[0022] Figure 5 This is a partial structural diagram of the clamping spring connection of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Outer shell, 11. Guide tube, 12. Connecting plate, 13. Connecting hole, 14. Spherical groove, 15. Mounting cavity, 16. Guide cavity, 17. Connecting plate, 18. Connecting screw, 19. Spherical valve core, 2. Sealing column, 21. Guide column, 22. Sealing ball groove, 23. Spherical sealing gasket, 24. Connecting through hole, 25. Positioning hole, 26. Tightening spring, 3. Semi-circular connecting cylinder, 31. Valve stem, 32. Mounting head. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 4 A modular, high-sealing, wear-resistant ball valve includes a housing 1. A guide tube 11 is fixedly connected to one end of the housing 1, and a connecting disc 12 is fixedly connected to the other end of the guide tube 11. The surface of the connecting disc 12 has connecting holes 13. A spherical groove 14 is provided inside one end of the housing 1. A spherical valve core 19 is rotatably mounted on the inner surface of the spherical groove 14. An installation cavity 15 is provided inside the spherical groove 14. A guide cavity 16 is provided at one end of the installation cavity 15. A sealing column 2 is slidably mounted inside the installation cavity 15. A guide column 21 is fixedly connected to one end of the sealing column 2 and slidably connected inside the guide cavity 16. A sealing ball groove 22 is provided inside the other end of the sealing column 2. A spherical sealing gasket 23 is fixedly fitted inside the sealing ball groove 22. The spherical sealing gasket 23 is pressed tightly against both sides of the spherical valve core 19, thereby achieving a sealing effect. The movable position of column 2 ensures that the spherical sealing gasket 23 is tightly sealed, which is conducive to gap compensation, improves sealing stability, and has high adaptability. The guide column 21 and the sealing column 2 are provided with mating through holes 24 to ensure internal communication and facilitate combination use. The other end of the outer shell 1 is fixedly connected to the mating plate 17. The mating plate 17 is threaded with mating screws 18 on its side. The mating plate 17 is fixedly connected to the joint of the two outer shells 1. The mating plates 17 are assembled together and then fixed with mating screws 18. The separate outer shells 1 can be combined to form a complete valve body. This facilitates the placement and installation of the internal sealing column 2 and spherical valve core 19, avoids interference, has high adaptability, and is also conducive to disassembly and maintenance. After long-term use, the gap increases, and new parts can be replaced, which is conducive to maintenance, improves wear resistance, and has high adaptability.

[0027] Please see Figure 2 and Figure 5 One end of the sealing column 2 has a positioning hole 25. The positioning holes 25 are evenly distributed at equal angles on the side of the guide column 21. A tightening spring 26 is fixedly connected inside the positioning hole 25. The tightening spring 26 is tightened and connected to the inside of the mounting cavity 16. The tightening spring 26 is evenly distributed circumferentially on the outer surface of the guide column 21. The tightening screw is connected through the positioning hole at one end of the sealing column and is circumferentially distributed on the side of the guide column. It can be combined and positioned to tighten the sealing column to ensure sealing stability. It is convenient for separate assembly and use and has high adaptability. After the sealing column 2 is positioned inside the mounting cavity 15, it is tightened by the tightening spring 26 at the end to ensure that the spherical sealing gasket 23 at the other end is tightened to the surface of the spherical valve core 19, which can compress the seal and ensure stability. The spherical structure will not interfere with rotation adjustment and is conducive to combined use.

[0028] Please see Figure 1 and Figure 2A semi-circular docking cylinder 3 is fixedly connected to one side of the outer shell 1. The semi-circular docking cylinder 3 is fixedly connected to one side of the docking plate 17. A valve stem 31 is rotatably installed inside the semi-circular docking cylinder 3. One end of the valve stem 31 is fixedly connected to the upper end of the ball valve core 19. An installation head 32 is fixedly connected to one end of the valve stem 31. The installation head 32 is rotatably installed on the upper surface of the semi-circular docking cylinder 3. The valve stem and the installation head are installed through the semi-circular docking cylinder, which can be spliced ​​and positioned separately, which is conducive to supporting the rotation of the valve stem, convenient for combination use, stable and efficient. When assembling and installing the outer shell 1, the two semi-circular docking cylinders 3 can be aligned and installed to form a complete cylindrical structure, which is conducive to supporting and positioning the valve stem 31 and facilitating rotation adjustment. The installation head 32 can be threaded with a handle, which is conducive to rotating and adjusting the ball valve core 19, thereby performing opening and closing control, which is conducive to combination use.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A modular high-sealing wear-resistant ball valve, comprising a housing (1), one end of which is fixedly connected to a guide tube (11), and one end of which is fixedly connected to a connecting disc (12), wherein the surface of the connecting disc (12) is provided with a connecting hole (13), characterized in that: The outer casing (1) has a spherical groove (14) at one end inside. A spherical valve core (19) is rotatably mounted on the inner surface of the spherical groove (14). An installation cavity (15) is provided inside the spherical groove (14). A guide cavity (16) is provided at one end inside the installation cavity (15). A sealing column (2) is slidably mounted inside the installation cavity (15). A guide column (21) is fixedly connected to one end of the sealing column (2). The guide column (21) is slidably connected inside the guide cavity (16). The other end is provided with a sealing ball groove (22), and a spherical sealing gasket (23) is fixedly attached inside the sealing ball groove (22). The spherical sealing gasket (23) is pressed and connected to both sides of the spherical valve core (19). The guide post (21) and the sealing post (2) are provided with a docking through hole (24). The other end of the outer shell (1) is fixedly connected with a docking plate (17). The side of the docking plate (17) is threaded with a docking screw (18). The docking plate (17) is fixedly connected to the joint of the two outer shells (1).

2. The assembled high-sealing wear-resistant ball valve according to claim 1, characterized in that: The sealing column (2) has a positioning hole (25) on one end surface, and the positioning hole (25) is evenly distributed at equal angles on the side of the guide column (21).

3. The assembled high-sealing wear-resistant ball valve according to claim 2, characterized in that: A clamping spring (26) is fixedly connected inside the positioning hole (25), and the clamping spring (26) is clamped to the inside of the mounting cavity (16).

4. The assembled high-sealing wear-resistant ball valve according to claim 3, characterized in that: The clamping springs (26) are circumferentially distributed at equal angles on the outer surface of the guide post (21).

5. The assembled high-sealing wear-resistant ball valve according to claim 1, characterized in that: A semi-circular docking cylinder (3) is fixedly connected to one side of the outer shell (1), and the semi-circular docking cylinder (3) is fixedly connected to one side of the docking plate (17).

6. The assembled high-sealing wear-resistant ball valve according to claim 5, characterized in that: A valve stem (31) is rotatably mounted inside the semi-circular docking cylinder (3), and one end of the valve stem (31) is fixedly connected to the upper end of the spherical valve core (19).

7. The assembled high-sealing wear-resistant ball valve according to claim 6, characterized in that: One end of the valve stem (31) is fixedly connected to an installation head (32), which is rotatably mounted on the upper surface of the semi-circular docking cylinder (3).

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