A dome valve device that is easily disassembled for maintenance

Abstract

The application belongs to the technical field of dome valves, and discloses a dome valve device easy to disassemble, assemble and maintain, which comprises a valve body, a valve core is arranged in the valve body, an air-filled rubber ring is arranged on the top of the valve body, a mounting frame is arranged on the outer wall of the valve body, a rotating shaft is arranged at each end of the valve body, a tank frame is arranged at one end of the mounting frame, a pressure tank is arranged in the tank frame, a fixing assembly is arranged between the valve core and the rotating shaft, and a connecting assembly is arranged at the bottom of the valve body. The fixing assembly is arranged to facilitate quick installation and disassembly of the valve core, facilitate maintenance and replacement in the later period, the connecting assembly is arranged to facilitate disassembly and assembly of the dome valve, and the sealing performance of the dome valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of dome valve technology, and in particular to a dome valve device that is easy to disassemble and maintain. Background Technology

[0002] The dome valve is a fast-opening and closing valve widely used in pneumatic conveying systems of thermal power plants, as well as in industries such as cement, chemicals, metallurgy, papermaking, and pharmaceuticals. The valve core of the dome valve is a spherical dome. When the dome valve is activated, the rubber sealing ring releases air, and a pneumatic or hydraulic cylinder drives the valve core to rotate, opening the valve. When the dome valve is closed, the rubber sealing ring inflates, expands, and presses tightly against the spherical dome valve core, forming a reliable sealing ring that prevents the flow of materials within the pipeline.

[0003] Chinese utility model patent CN202323235130.7 discloses a dome valve that is easy to install and disassemble, including a valve body; a supporting connecting pipe is fixedly connected to the bottom of the valve body; an upper connecting block is fixedly connected to the surface of the supporting connecting pipe; a liquid cooling tank is fixedly connected to the bottom end of the supporting connecting pipe; pressure tanks are connected to both sides of the liquid cooling tank; a U-shaped support frame is snapped between the top of the liquid cooling tank and the bottom of the upper connecting block; a snap-fit ​​shaft is snapped onto the surface of the U-shaped support frame; an installation clip is fixedly connected to the bottom of the upper connecting block and located on the surface of the supporting connecting pipe; a connecting bolt is threaded onto the surface of the installation clip.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: due to frequent opening and closing, the spherical surface of the valve core is severely worn, and the sealing performance is reduced. Therefore, it is often necessary to repair or replace the entire valve core. The valve core is generally fixed to the control shaft by direct welding on its base. The disassembly, assembly, repair and replacement of the valve core are difficult and costly. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a dome valve device that is easy to disassemble and maintain.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dome valve device that is easy to disassemble and maintain, comprising a valve body, a valve core installed inside the valve body, an inflatable rubber ring installed on the top of the valve body, a mounting bracket installed on the outer wall of the valve body, a rotating shaft installed at both ends of the valve body, a tank rack installed at one end of the mounting bracket, a pressure tank installed inside the tank rack, a fixing component provided between the valve core and the rotating shaft, and a connecting component provided at the bottom of the valve body.

[0007] By adopting the above technical solution and using the fixed components, the valve core can be quickly installed and disassembled, facilitating later maintenance and replacement. The connecting components also facilitate the assembly and disassembly of the dome valve, improving its sealing performance.

[0008] Furthermore, an inflatable rubber ring is connected to the top of the valve core, and connecting blocks are fixedly connected to both ends of the valve core.

[0009] By adopting the above technical solution, the two connecting blocks can be connected to the connecting shaft under the action of the fixing component, which facilitates the installation and disassembly of the valve core.

[0010] Furthermore, the fixing component includes an inner groove formed inside one end of the rotating shaft, a movable block slidably connected inside the inner groove, a baffle fixedly connected to one end of the movable block, a spring fixedly connected between the movable block and the inner wall of the inner groove, a positioning block fixedly connected to the other end of the movable block, a locking block fixedly connected to one end of the rotating shaft, and a sealing gasket fixedly connected to one end of the movable block.

[0011] By adopting the above technical solution, the movable block on one side of the rotating shaft is pushed, and the movable block slides along the inner groove, compressing and storing the spring. The slider drives the positioning block into the inner groove, and then the valve core drives the connecting blocks at both ends into the valve body. The valve core drives the connecting blocks to slide into the locking block. The movable block is released, and the spring returns to its original position, pushing the positioning block at one end of the movable block into the positioning groove at one end of the connecting block. The connecting block abuts against the sealing gasket, thereby fixing the position of the connecting block and the rotating shaft. This facilitates the quick installation of the valve core and the easy disassembly for maintenance.

[0012] Furthermore, the fixing component also includes a positioning groove formed at one end of the connecting block, and a sliding connecting block at one end of the connecting block, the connecting block being a U-shaped seat.

[0013] By adopting the above technical solution, a U-shaped locking block is set up to facilitate the sliding of the connecting block into the locking block and limit the position of the locking block.

[0014] Furthermore, the inner groove is a T-shaped groove, one side of the inner groove is sealed with a baffle, and a positioning block is provided in the center of the sealing gasket. The positioning block penetrates the interior of the card block and is connected to the positioning groove.

[0015] By adopting the above technical solution, the inner groove is blocked by the set baffle to prevent the material input to the dome valve from entering the valve body.

[0016] Furthermore, the connecting assembly includes a connecting plate fixedly connected to the outer wall of the bottom end of the valve body, a connecting sleeve sleeved inside the valve body, a sealing groove provided between the connecting sleeve and the inner wall of the valve body, a sealing ring provided inside the sealing groove, and a connecting flange provided at the bottom end of the connecting plate.

[0017] By adopting the above technical solution, the sealing performance between the connecting flange and the valve body is improved through the setting of connecting sleeve, sealing groove and sealing gasket.

[0018] Furthermore, the connecting assembly also includes a positioning clamp that engages with the outer wall of the connecting plate and the connecting flange. The positioning clamp has a fixing bolt connected to its internal thread. A threaded hole is provided at the connection between the connecting plate and the connecting flange. The fixing bolt is connected to the internal thread of the threaded hole. A movable nut is connected to the bottom thread of the fixing bolt.

[0019] By adopting the above technical solution, the valve body is aligned with the connecting plate and the connecting flange. The connecting flange is then inserted into the bottom of the valve body with the connecting sleeve. The connecting plate and the connecting flange are aligned with the screw holes. Then, the two positioning clamps are engaged with the connecting plate and the connecting flange. The positioning clamps are connected to the screw holes by the threaded fixing bolts. The fixing bolts are then locked by the movable nut, which facilitates the disassembly and assembly of the valve body.

[0020] Furthermore, the positioning clamp has a U-shaped cross-section, and there are two positioning clamps, which are located on the outside of the valve body. The positioning clamps are semi-circular rings.

[0021] By adopting the above technical solution, the U-shaped positioning clip fits more closely to the outer wall of the connecting plate and the connecting flange, making it easier to fix and use.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. In this application, the movable block on one side of the rotating shaft is pushed, and the movable block slides along the inner groove and compresses and stores the spring. The slider drives the positioning block into the inner groove, and then the valve core drives the connecting blocks at both ends into the valve body. The valve core drives the connecting blocks to slide into the locking block. The movable block is released, the spring returns to its original position, and pushes the positioning block at one end of the movable block into the positioning groove at one end of the connecting block. The connecting block abuts against the sealing gasket, thereby fixing the position of the connecting block and the rotating shaft. This facilitates the quick installation of the valve core and the easy disassembly for maintenance.

[0024] 2. In this application, the valve body is aligned with the connecting plate and the connecting flange, and the connecting flange is inserted into the bottom of the valve body with the connecting sleeve. The connecting plate and the connecting flange are aligned one by one with the screw holes. Then, the two positioning clips are engaged with the connecting plate and the connecting flange. The positioning clips are connected to the screw holes by the threaded fixing bolts, and the fixing bolts are locked by the movable nut, which facilitates quick disassembly and assembly.

[0025] 3. In this application, the sealing performance between the connecting flange and the valve body is improved by setting the connecting sleeve, sealing groove and sealing gasket. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0027] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0028] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0029] In the diagram: 1. Valve body; 2. Valve core; 21. Connecting block; 3. Inflatable rubber ring; 4. Rotating shaft; 5. Mounting bracket; 51. Tank rack; 52. Pressure tank; 6. Fixing assembly; 61. Inner groove; 62. Movable block; 63. Spring; 64. Baffle; 65. Sealing gasket; 66. Positioning groove; 67. Positioning block; 68. Clamping block; 7. Connecting assembly; 71. Connecting plate; 72. Connecting flange; 73. Sealing groove; 74. Sealing ring; 75. Connecting sleeve; 76. Positioning clamp; 77. Screw hole; 78. Fixing bolt; 79. Movable nut. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] like Figure 1-3 As shown in the figure, this application discloses an easy-to-disassemble and maintain dome valve device, including a valve body 1, a valve core 2 installed inside the valve body 1, an inflatable rubber ring 3 installed on the top of the valve body 1, a mounting bracket 5 installed on the outer wall of the valve body 1, a rotating shaft 4 installed at both ends of the valve body 1, a tank rack 51 installed at one end of the mounting bracket 5, a pressure tank 52 installed inside the tank rack 51, a fixing component 6 provided between the valve core 2 and the rotating shaft 4, and a connecting component 7 provided at the bottom of the valve body 1.

[0032] The top of the valve core 2 is connected to an inflatable rubber ring 3, and both ends of the valve core 2 are fixedly connected to a connecting block 21.

[0033] The fixing component 6 includes an inner groove 61 formed inside one end of the rotating shaft 4. A movable block 62 is slidably connected inside the inner groove 61. A baffle 64 is fixedly connected to one end of the movable block 62. A spring 63 is fixedly connected between the movable block 62 and the inner wall of the inner groove 61. A positioning block 67 is fixedly connected to the other end of the movable block 62. A locking block 68 is fixedly connected to one end of the rotating shaft 4. A sealing gasket 65 is fixedly connected to one end of the movable block 62.

[0034] The fixing component 6 also includes a positioning groove 66 formed at one end of the connecting block 21, and a sliding connection block 68 at one end of the connecting block 21, wherein the blocking block 68 is a U-shaped seat.

[0035] The inner groove 61 is a T-shaped groove, and a baffle 64 is sealed on one side of the inner groove 61. A positioning block 67 is provided in the center of the sealing gasket 65. The positioning block 67 penetrates the interior of the locking block 68 and is connected to the positioning groove 66.

[0036] The connecting assembly 7 includes a connecting plate 71 fixedly connected to the outer wall of the bottom end of the valve body 1. A connecting sleeve 75 is sleeved inside the valve body 1. A sealing groove 73 is provided between the connecting sleeve 75 and the inner wall of the valve body 1. A sealing ring 74 is provided inside the sealing groove 73. A connecting flange 72 is provided at the bottom end of the connecting plate 71.

[0037] The connecting assembly 7 also includes a positioning clip 76 that engages with the outer wall of the connecting plate 71 and the connecting flange 72. The positioning clip 76 is internally threaded with a fixing bolt 78. A threaded hole 77 is provided at the connection between the connecting plate 71 and the connecting flange 72. The threaded hole 77 is internally threaded with the fixing bolt 78. The bottom of the fixing bolt 78 is threaded with a movable nut 79.

[0038] The positioning clip 76 has a U-shaped cross-section, and there are two positioning clips 76. The two positioning clips 76 are located on the outside of the valve body 1, and the positioning clips 76 are semi-circular.

[0039] The operating principle of the dome valve device that is easy to disassemble and maintain in this embodiment is as follows: When disassembling and maintaining, first push the movable block 62 on one side of the rotating shaft 4. The movable block 62 slides along the inner groove 61 and compresses the spring 63 to store force. The slider drives the positioning block 67 into the inner groove 61. Then, the valve core 2 drives the connecting blocks 21 at both ends into the valve body 1. Keep the valve core 2 and the connecting blocks 21 sliding into the locking block 68. Release the movable block 62. The spring 63 returns to its original position and pushes the positioning block 67 at one end of the movable block 62 into the positioning groove 66 at one end of the connecting block 21. The connecting block 21 abuts against the sealing gasket 65, thereby fixing the position of the connecting block 21 and the rotating shaft 4. This facilitates quick installation of the valve core 2 and easy disassembly for maintenance. The valve body 1 is aligned with the connecting plate 71 and the connecting flange 72. The connecting flange 72 drives the connecting sleeve 75 to the bottom of the valve body 1, keeping the screw holes 77 on the connecting plate 71 and the connecting flange 72 aligned one by one. Then, the two positioning clips 76 are engaged with the connecting plate 71 and the connecting flange 72. The positioning clips 76 are threaded to the screw holes 77 by the fixing bolts 78, and the fixing bolts 78 are locked by the movable nut 79. The connecting sleeve 75, the sealing groove 73 and the sealing gasket 65 improve the sealing performance between the connecting flange 72 and the valve body 1, facilitating quick assembly and disassembly.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A dome valve device that is easy to disassemble and maintain, comprising a valve body (1), characterized in that: A valve core (2) is installed inside the valve body (1). An inflatable rubber ring (3) is installed on the top of the valve body (1). A mounting bracket (5) is installed on the outer wall of the valve body (1). A rotating shaft (4) is installed at both ends of the valve body (1). A tank rack (51) is installed at one end of the mounting bracket (5). A pressure tank (52) is installed inside the tank rack (51). A fixing component (6) is provided between the valve core (2) and the rotating shaft (4). A connecting component (7) is provided at the bottom of the valve body (1).

2. The dome valve device according to claim 1, characterized in that: The top of the valve core (2) is connected to an inflatable rubber ring (3), and both ends of the valve core (2) are fixedly connected to connecting blocks (21).

3. The dome valve device that is easy to disassemble and maintain according to claim 1, characterized in that: The fixing component (6) includes an inner groove (61) formed inside one end of the rotating shaft (4), a movable block (62) is slidably connected inside the inner groove (61), a baffle (64) is fixedly connected to one end of the movable block (62), a spring (63) is fixedly connected between the movable block (62) and the inner wall of the inner groove (61), a positioning block (67) is fixedly connected to the other end of the movable block (62), a locking block (68) is fixedly connected to one end of the rotating shaft (4), and a sealing gasket (65) is fixedly connected to one end of the movable block (62).

4. The dome valve device that is easy to disassemble and maintain according to claim 2, characterized in that: The fixing component (6) also includes a positioning groove (66) formed at one end of the connecting block (21), and a sliding connecting block (68) is formed at one end of the connecting block (21), the connecting block (68) being a U-shaped seat.

5. The dome valve device according to claim 3, characterized in that: The inner groove (61) is a T-shaped groove. A baffle (64) is sealed on one side of the inner groove (61). A positioning block (67) is provided in the center of the sealing gasket (65). The positioning block (67) penetrates the interior of the card block (68) and is connected to the positioning groove (66).

6. The dome valve device according to claim 1, characterized in that: The connecting assembly (7) includes a connecting plate (71) fixedly connected to the outer wall of the bottom end of the valve body (1), a connecting sleeve (75) is sleeved inside the valve body (1), a sealing groove (73) is provided between the connecting sleeve (75) and the inner wall of the valve body (1), a sealing ring (74) is provided inside the sealing groove (73), and a connecting flange (72) is provided at the bottom end of the connecting plate (71).

7. A dome valve device that is easy to disassemble and maintain according to claim 6, characterized in that: The connecting assembly (7) further includes a positioning clip (76) that engages with the outer wall of the connecting plate (71) and the connecting flange (72). The positioning clip (76) is internally threaded with a fixing bolt (78). A threaded hole (77) is provided at the connection between the connecting plate (71) and the connecting flange (72). The threaded hole (77) is internally threaded with the fixing bolt (78). The bottom of the fixing bolt (78) is threaded with a movable nut (79).

8. A dome valve device that is easy to disassemble and maintain according to claim 7, characterized in that: The positioning clip (76) has a U-shaped cross-section. There are two positioning clips (76), which are located on the outside of the valve body (1). The positioning clip (76) is semi-circular.

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