High-pressure metal sealing ball valve

Abstract

The utility model relates to the technical field of sealing ball valves, in particular to a high-pressure metal sealing ball valve which comprises a ball valve body, a mounting seat and a rotating wheel, the mounting seat is fixedly connected to the top end of the ball valve body, and a ball valve resistance reducing water passing structure is arranged in the ball valve body. The resistance-reducing water passing structure of the ball valve comprises two ball valve bearings, a sealing groove and a valve element, the two ball valve bearings are fixedly installed at the two ends of the interior of a ball valve body, and the sealing groove is fixedly installed on the inner wall of the ball valve body. According to the high-pressure metal sealing ball valve, the reinforcing plate is made of a stainless steel metal plate which is firm and rust-proof, and the anti-collision layer is made of a high-carbon steel metal plate which is not prone to deformation and high in impact resistance, so that the anti-collision layer can improve the impact resistance of the water through hole under the high-pressure condition; the metal sealing ball valve is used for preventing the situation that the valve element is prone to impact deformation under high-pressure work, and the sealing performance of the high-pressure metal sealing ball valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealed ball valves, in particular to a high-pressure metal sealed ball valve. Background Art

[0002] Ball valve, the opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between the V-type ball core and the metal valve seat with hard alloy surfacing, which is particularly suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of the medium in the pipeline, but also close any channel to connect the other two channels.

[0003] For example, the authorization announcement number "CN210265980U" is named a metal-sealed ball valve. Although the valve body can be matched with the ball to control the opening and closing of the valve, and the ball is made of alloy steel spray welding, and the valve body is made of alloy steel surfacing, it can withstand the dual pressure of the internal fluid of the valve body and the external fluid. Compared with non-metallic seals, metal seals have better durability and sealing. However, the existing metal-sealed ball valve has a through hole inside the valve body for passing the liquid to realize the valve conveying function. However, the water inlet ends at both ends of the valve body protrude on both sides of the ball valve body. In this way, when used under high pressure, the pressure of the water pressure conveyance is relatively high, so the impact force and pressure generated by the water body will also be relatively large. In this way, the water inlet holes of the ball valve protruding on both sides of the valve body will be the first to be impacted by the high-pressure water flow. Therefore, when the metal-sealed ball valve is opened and closed more times under high pressure, the water inlet hole will be more seriously worn and deformed by impact force, thereby affecting the sealing performance of the metal-sealed ball valve.

[0004] At the same time, the existing metal-sealed ball valve adopts a handle structure with the top end connected to the valve body for control. However, in order to increase the length of the lever arm, the handle is set to be much longer than the metal-sealed ball valve. Therefore, in actual use of the metal-sealed ball valve, the overly long handle is easily accidentally touched by people walking by, and the handle will drive the lower end of the valve body to rotate to a certain extent. Therefore, the internal valve body of the metal-sealed ball valve rotates so that the through hole is close to the side of the water inlet pipe, and the ball valve is forced to open, thereby reducing the practicality of the metal-sealed ball valve. Utility Model Content

[0005] The utility model aims to solve the problems of poor sealing and low practicability of metal sealing ball valves, and proposes a high-pressure metal sealing ball valve.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure metal-sealed ball valve, comprising a ball valve body, a mounting seat and a rotating wheel, wherein the mounting seat is fixedly connected to the top of the ball valve body, and a ball valve resistance-reducing water-passing structure is provided inside the ball valve body, and the ball valve resistance-reducing water-passing structure comprises a ball valve bearing, a sealing groove and a valve core, two of the ball valve bearings are fixedly mounted on the two ends of the interior of the ball valve body, the valve core is rotatably connected to the inside of the two ball valve bearings, the sealing groove is fixedly mounted on the inner wall of the ball valve body, a reinforcing plate is fixedly mounted inside the valve core, a water-passing hole is fixedly opened inside the reinforcing plate, anti-collision layers are fixedly mounted at both ends of the water-passing hole, and the edges of the two anti-collision layers are fixedly connected to the reinforcing plate.

[0007] Preferably, valve water-passing structures are provided on both sides of the ball valve body;

[0008] The valve water-passing structure comprises a connecting pipe, a first flange and a second flange;

[0009] The two connecting tubes are fixedly connected on both sides of the ball valve body, the other ends of the two connecting tubes are fixedly connected with a first flange, the outer sides of the two first flanges are movably connected with two second flanges, the outer sides of the two first flanges are threadedly connected with a plurality of locking bolts, and one side of the plurality of locking bolts is threadedly connected with the outer sides of the second flanges.

[0010] Preferably, a ball valve rotation control structure is provided on the inner side of the mounting seat;

[0011] The ball valve rotation control structure comprises a docking hole, a slot and a rotation rod;

[0012] The rotating rod is rotatably connected to the inside of the mounting seat, the bottom end of the rotating rod is fixedly connected to the top of the valve core through a ball valve bearing, a docking hole is fixedly provided at the top of the rotating rod, a slot is fixedly provided inside the docking hole, a plug plate is movably connected inside the slot, and positioning blocks are fixedly connected to both sides of the plug plate.

[0013] Preferably, a ball valve opening limiting structure is provided at the top of the mounting seat;

[0014] The ball valve opening limiting structure comprises a driving shaft, a connecting plate and a sleeve;

[0015] The two sleeves are fixedly installed on the top of the mounting seat, the inner parts of the two sleeves are slidably clamped with a push plate, the inner parts of the sleeves are fixedly installed with a spring, the top end of the spring is movably connected to the lower end of the push plate, the two connecting plates are fixedly installed on the top end of the push plate, and the driving shaft is fixedly connected to the inner sides of the two connecting plates.

[0016] Preferably, the lower end of the driving shaft is rotatably connected to the top end of the plug plate, the lower end of the driving shaft is movably connected to the top end of the rotating rod, and the top end of the plug plate is fixedly connected to the bottom of the rotating wheel.

[0017] Preferably, the rotating wheel is fixedly mounted on the top end of the driving shaft and is fixedly connected thereto, water inlet holes are fixedly opened inside the two connecting pipes, and the inner sides of the two water inlet holes are movably connected to the water through hole.

[0018] The utility model proposes a high-pressure metal-sealed ball valve, which has the following beneficial effects: the reinforcing plate is made of a relatively strong and rust-proof stainless steel metal plate, so that the firmness of the valve core can be improved and it is not easy to be deformed and damaged; the anti-collision layer is made of a high-carbon steel metal plate that is not easy to deform and has strong impact resistance, so that the anti-collision layer can improve the impact resistance of the water hole under high pressure conditions, and utilizes the situation in the metal-sealed ball valve that prevents the valve core from being easily deformed by impact under high-pressure operation, thereby improving the sealing performance of the high-pressure metal-sealed ball valve.

[0019] When the valve core needs to be controlled to rotate, first press the rotating wheel downward to move it, the plug plate will be pushed into the inside of the slot by the driving shaft, and then manually turn the rotating wheel to rotate it, so that the plug plate can drive the slot to rotate. At this time, the rotating rod at the lower end can drive the lower valve core to rotate under the action of the ball valve bearing. The rotating wheel and the lower valve core can be set separately and connected when needed to avoid the problem of valve core rotation caused by accidentally touching the rotating wheel, thereby improving the practicability of the high-pressure metal sealed ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 for Figure 1 A front cross-sectional schematic diagram of

[0022] Figure 3 for Figure 1 A schematic diagram of a right side view of FIG.

[0023] Figure 4 for Figure 2 Enlarged cross-sectional view of part A in the middle;

[0024] Figure 5 for Figure 2 Enlarged cross-sectional view of part B in the middle;

[0025] Figure 6 for Figure 3 Enlarged cross-sectional view of part C.

[0026] In the figure: 1. ball valve body, 2. mounting seat, 3. rotating wheel, 4. water inlet hole, 5. ball valve water-passing structure for reducing resistance, 51. ball valve bearing, 52. sealing groove, 53. valve core, 54. reinforcing plate, 55. anti-collision layer, 56. water-passing hole, 6. ball valve rotation control structure, 61. docking hole, 62. slot, 63. rotating rod, 64. positioning block, 65. plug plate, 7. ball valve opening limiting structure, 71. driving shaft, 72. connecting plate, 73. sleeve, 74. spring, 75. push plate, 8. valve water-passing structure, 81. connecting pipe, 82. first flange, 83. second flange, 84. locking bolt. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] See also Figure 1-6 A high-pressure metal-sealed ball valve comprises a ball valve body 1, a mounting seat 2 and a rotating wheel 3. The mounting seat 2 is fixedly connected to the top of the ball valve body 1. A ball valve resistance-reducing water-passing structure 5 is arranged inside the ball valve body 1. The ball valve resistance-reducing water-passing structure 5 comprises a ball valve bearing 51, a sealing groove 52 and a valve core 53. Two ball valve bearings 51 are fixedly mounted at both ends of the ball valve body 1. The ball valve bearings 51 can drive the valve core 53 to rotate inside the ball valve body 1. When the valve core 53 is horizontally erected, the valve core 5 The water holes 56 inside the ball valve body 1 are connected with the connecting pipe 81, so that water can flow normally when the valve is opened. When the valve core 53 rotates 90 degrees clockwise, the sealing groove 52 inside the ball valve body 1 will block the water holes 56 on both sides, and the valve is closed. The valve core 53 is rotatably connected to the inside of the two ball valve bearings 51. The sealing groove 52 is fixedly installed on the inner wall of the ball valve body 1. The sealing groove 52 is made of rubber material with relatively good sealing performance. The sealing groove 52 can reduce the leakage problem at the edge of the valve core 53.

[0029] A reinforcing plate 54 is fixedly installed inside the valve core 53. The reinforcing plate 54 is made of a relatively strong and rust-proof stainless steel metal plate. The reinforcing plate 54 runs horizontally through the inside of the valve core 53, which can improve the firmness of the valve core 53 and prevent it from being deformed and damaged. A water hole 56 is fixedly opened inside the reinforcing plate 54. Anti-collision layers 55 are fixedly installed at both ends of the water hole 56. The anti-collision layers 55 are arranged at both ends of the water hole 56. The anti-collision layers 55 are made of a high-carbon steel metal plate that is not easy to deform and has strong impact resistance. In this way, the anti-collision layers 55 can improve the impact resistance of the water hole 56 under high pressure. The edges of the two anti-collision layers 55 are fixedly connected to the reinforcing plate 54.

[0030] The ball valve bearing 51 can drive the valve core 53 to rotate inside the ball valve body 1. When the valve core 53 is horizontally erected, the water hole 56 inside the valve core 53 is connected with the connecting pipe 81, so that the water can flow normally when the valve is opened. When the valve core 53 rotates 90 degrees clockwise, the sealing groove 52 inside the ball valve body 1 will block the water holes 56 on both sides, and the valve is closed. The sealing groove 52 is made of rubber material with good sealing performance. The sealing groove 52 can reduce the leakage problem at the edge of the valve core 53. The reinforcing plate 54 adopts It is made of relatively strong and rust-proof stainless steel metal plates. The reinforcing plate 54 runs horizontally through the interior of the valve core 53, which can improve the strength of the valve core 53 and prevent it from being deformed and damaged. The anti-collision layer 55 is arranged at both ends of the water hole 56. The anti-collision layer 55 is made of high-carbon steel metal plates that are not easy to deform and have strong impact resistance. In this way, the anti-collision layer 55 can improve the impact resistance of the water hole 56 under high pressure conditions, and utilizes the situation in the metal sealed ball valve that prevents the valve core from being easily deformed by impact under high-pressure operation, thereby improving the sealing of the high-pressure metal sealed ball valve.

[0031] See also Figure 1-6 , a ball valve rotation control structure 6 is provided on the inner side of the mounting seat 2, and the ball valve rotation control structure 6 includes a docking hole 61, a slot 62 and a rotating rod 63, and the rotating rod 63 is rotatably connected to the inside of the mounting seat 2, and the bottom end of the rotating rod 63 is fixedly connected to the top of the valve core 53 through the ball valve bearing 51, and the top of the rotating rod 63 is fixedly provided with a docking hole 61, and the inside of the docking hole 61 is fixedly provided with a slot 62, and the inside of the slot 62 is movably connected with a plug plate 65, and the two sides of the plug plate 65 are fixedly connected with positioning blocks 64, and the size and shape of the plug plate 65 are consistent with the lower end slot 62, and the top of the mounting seat 2 is provided with a ball valve opening limiting structure 7, and the ball valve opening limiting structure 7 includes a driving shaft 71, a connecting plate 72 and a sleeve 73, and the two sleeves 73 are fixedly installed on the top of the mounting seat 2, and the inside of the two sleeves 73 is slidably connected with a push plate 75, and the inside of the sleeve 73 is fixedly installed with a spring 74. When it is necessary to control the rotation of the valve core 53, first press the rotating wheel 3 downward to move, so that the driving shaft 71 will move downward;

[0032] The push plates 75 on both sides are pushed to slide inside the sleeve 73, and the compression spring 74 contracts. At this time, the plug plate 65 is pushed into the inner side of the slot 62 by the driving shaft 71. Then, the rotating wheel 3 is manually twisted to rotate, so that the plug plate 65 can drive the slot 62 to rotate. At this time, the rotating rod 63 at the lower end can drive the lower valve core 53 to rotate under the action of the ball valve bearing 51. When the rotating wheel 3 is loosened, the spring 74 compressed inside the sleeve 73 will push the push plate 75 up in the opposite direction, and the plug plate 65 will leave the inside of the slot 62. In this way, no matter how the rotating wheel 3 rotates, it will not drive the lower valve core 53 to move. The top end of the spring 74 is movably connected to the lower end of the push plate 75. The two connecting plates 72 are fixedly installed on the top of the push plate 75, and the driving shaft 71 is fixedly connected to the inner sides of the two connecting plates 72.

[0033] When it is necessary to control the rotation of the valve core 53, the rotating wheel 3 is first pressed downward to move, so that the driving shaft 71 will move downward, pushing the pushing plates 75 on both sides to slide inside the sleeve 73, and the compression spring 74 will shrink. At this time, the plug plate 65 will be pushed into the inner side of the slot 62 by the driving shaft 71, and then the rotating wheel 3 is manually turned to rotate, so that the plug plate 65 can drive the slot 62 to rotate. At this time, the rotating rod 63 at the lower end can drive the lower valve core 53 to rotate under the action of the ball valve bearing 51. When the rotating wheel 3 is released, the spring 74 compressed inside the sleeve 73 will push the pushing plate 75 up in the opposite direction, and the plug plate 65 will leave the inside of the slot 62. In this way, no matter how the rotating wheel 3 rotates, it will not drive the lower valve core 53 to move. The rotating wheel 3 and the lower valve core 53 can be separately set and connected when needed to avoid the problem of the valve core rotating due to accidental touching of the rotating wheel, thereby improving the practicality of the high-pressure metal sealed ball valve.

[0034] See also Figure 1-6 , a valve water-passing structure 8 is provided on both sides of the ball valve body 1, and the valve water-passing structure 8 includes a connecting pipe 81, a first flange 82 and a second flange 83. The two connecting pipes 81 are fixedly connected to the two sides of the ball valve body 1, and the other ends of the two connecting pipes 81 are fixedly connected to the first flange 82. The outer sides of the two first flanges 82 are movably connected to two second flanges 83. The second flange 82 is used to connect to the high-pressure water pipe that needs to be controlled externally. The outer sides of the two first flanges 82 are threadedly connected to multiple locking bolts 84. The rotation of the multiple locking bolts 84 connects the first flange 82 with the second flange 83;

[0035] One side of multiple locking bolts 84 is threadedly connected to the outer side of the second flange 83, the lower end of the driving shaft 71 is rotatably connected to the top of the plug plate 65, the lower end of the driving shaft 71 is movably connected to the top of the rotating rod 63, the top of the plug plate 65 is fixedly connected to the bottom of the rotating wheel 3, the rotating wheel 3 is fixedly installed on the top of the driving shaft 71 and is fixedly connected, the two connecting pipes 81 are fixedly provided with water inlet holes 4, and the inner sides of the two water inlet holes 4 are movably connected to the water through hole 56.

[0036] Working principle:

[0037] High-pressure metal-sealed ball valves are used to control water flow in high-pressure pipelines:

[0038] High-pressure metal-sealed ball valve with high strength and high-pressure resistance working structure:

[0039] The ball valve bearing 51 can drive the valve core 53 to rotate inside the ball valve body 1. When the valve core 53 is horizontally erected, the water hole 56 inside the valve core 53 is connected with the connecting pipe 81, so that the water can flow normally when the valve is opened. When the valve core 53 rotates 90 degrees clockwise, the sealing groove 52 inside the ball valve body 1 will block the water holes 56 on both sides, and the valve is closed. The sealing groove 52 is made of rubber material with good sealing performance. The sealing groove 52 can reduce the leakage problem at the edge of the valve core 53. The reinforcing plate 54 adopts It is made of relatively strong and rust-proof stainless steel metal plates. The reinforcing plate 54 runs horizontally through the interior of the valve core 53, which can improve the strength of the valve core 53 and prevent it from being deformed and damaged. The anti-collision layer 55 is arranged at both ends of the water hole 56. The anti-collision layer 55 is made of high-carbon steel metal plates that are not easy to deform and have strong impact resistance. In this way, the anti-collision layer 55 can improve the impact resistance of the water hole 56 under high pressure conditions, and utilizes the situation in the metal sealed ball valve that prevents the valve core from being easily deformed by impact under high-pressure operation, thereby improving the sealing of the high-pressure metal sealed ball valve.

[0040] High-pressure metal-sealed ball valve rotating wheel and valve core separation control structure:

[0041] When it is necessary to control the rotation of the valve core 53, the rotating wheel 3 is first pressed downward to move, so that the driving shaft 71 will move downward, pushing the pushing plates 75 on both sides to slide inside the sleeve 73, and the compression spring 74 will shrink. At this time, the plug plate 65 will be pushed into the inner side of the slot 62 by the driving shaft 71, and then the rotating wheel 3 is manually turned to rotate, so that the plug plate 65 can drive the slot 62 to rotate. At this time, the rotating rod 63 at the lower end can drive the lower valve core 53 to rotate under the action of the ball valve bearing 51. When the rotating wheel 3 is released, the spring 74 compressed inside the sleeve 73 will push the pushing plate 75 up in the opposite direction, and the plug plate 65 will leave the inside of the slot 62. In this way, no matter how the rotating wheel 3 rotates, it will not drive the lower valve core 53 to move. The rotating wheel 3 and the lower valve core 53 can be set separately and connected when needed to avoid the problem of the valve core rotating due to accidental touching of the rotating wheel.

[0042] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A high-pressure metal-sealed ball valve, comprising a ball valve body (1), a mounting seat (2) and a rotating wheel (3), characterized in that: The mounting seat (2) is fixedly connected to the top end of the ball valve body (1); a ball valve resistance-reducing water-passing structure (5) is provided inside the ball valve body (1); the ball valve resistance-reducing water-passing structure (5) comprises a ball valve bearing (51), a sealing groove (52) and a valve core (53); the two ball valve bearings (51) are fixedly mounted at two ends inside the ball valve body (1); the valve core (53) is rotatably connected inside the two ball valve bearings (51); the sealing groove (52) is fixedly mounted on the inner wall of the ball valve body (1); a reinforcing plate (54) is fixedly mounted inside the valve core (53); a water-passing hole (56) is fixedly opened inside the reinforcing plate (54); anti-collision layers (55) are fixedly mounted at both ends of the water-passing hole (56); the edges of the two anti-collision layers (55) are fixedly connected to the reinforcing plate (54).

2. A high pressure metal sealing ball valve according to claim 1, characterized in that: Valve water-passing structures (8) are provided on both sides of the ball valve body (1); The valve water-passing structure (8) comprises a connecting pipe (81), a first flange (82) and a second flange (83); The two connecting pipes (81) are fixedly connected to the two sides of the ball valve body (1); the other ends of the two connecting pipes (81) are fixedly connected to the first flange (82); the outer sides of the two first flanges (82) are movably connected to two second flanges (83); the outer sides of the two first flanges (82) are threadedly connected to a plurality of locking bolts (84); one side of the plurality of locking bolts (84) is threadedly connected to the outer sides of the second flanges (83).

3. A high pressure metal sealing ball valve according to claim 1, characterized in that: A ball valve rotation control structure (6) is provided on the inner side of the mounting seat (2); The ball valve rotation control structure (6) comprises a docking hole (61), a slot (62) and a rotation rod (63); The rotating rod (63) is rotatably connected to the inside of the mounting seat (2); the bottom end of the rotating rod (63) is fixedly connected to the top end of the valve core (53) via the ball valve bearing (51); a docking hole (61) is fixedly provided at the top end of the rotating rod (63); a slot (62) is fixedly provided inside the docking hole (61); a plug plate (65) is movably connected inside the slot (62); and positioning blocks (64) are fixedly connected to both sides of the plug plate (65).

4. A high pressure metal sealing ball valve according to claim 1, characterized in that: A ball valve opening limiting structure (7) is provided at the top end of the mounting seat (2); The ball valve opening limiting structure (7) comprises a drive shaft (71), a connecting plate (72) and a sleeve (73); The two sleeves (73) are fixedly mounted on the top of the mounting seat (2); a push plate (75) is slidably engaged inside the two sleeves (73); a spring (74) is fixedly mounted inside the sleeve (73); the top of the spring (74) is movably connected to the lower end of the push plate (75); the two connecting plates (72) are fixedly mounted on the top of the push plate (75); and the drive shaft (71) is fixedly connected to the inner sides of the two connecting plates (72).

5. A high pressure metal sealing ball valve according to claim 4, characterized in that: The lower end of the driving shaft (71) is rotatably connected to the top of the plug plate (65), the lower end of the driving shaft (71) is movably connected to the top of the rotating rod (63), and the top of the plug plate (65) is fixedly connected to the bottom of the rotating wheel (3).

6. A high pressure metal sealing ball valve according to claim 2, characterized in that: The rotating wheel (3) is rotatably mounted on the top end of the driving shaft (71), and water inlet holes (4) are fixedly opened inside the two connecting pipes (81), and the inner sides of the two water inlet holes (4) are movably connected to the water through hole (56).

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