A ball valve

Abstract

The application discloses a ball valve, which comprises a main pipeline, a fixed cover is fixedly connected to the upper side wall of the main pipeline, a ball is movably embedded in the inner wall of the main pipeline and is located below the fixed cover, an arc-shaped movable groove matched with the ball is formed in the inner wall of the main pipeline, a water through hole is formed in the middle part of the ball, a rotating shaft is movably and fixedly connected to the upper side wall of the ball and extends through the inner top wall of the main pipeline and into the fixed cover, a tooth rod is movably and fixedly arranged in the upper side wall of the fixed cover, and a limiting mechanism is arranged on one side of the tooth rod in the fixed cover. The rotating mode is replaced by the pressing mode, so that the ball valve is conveniently opened, and under the impact of flowing water on the turbine, the cleaning brush can reciprocally clean the filter screen, the filtering effect of the filter screen is ensured, the main pipeline is prevented from being blocked, and the user only needs to push the push plate inward to achieve the effect that the ball valve is automatically closed, so that the ball valve is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of ball valve technology, and more particularly to a ball valve. Background Technology

[0002] Valves are very important devices in people's daily production and life. Various types of valves are used in life, and ball valves are one of them. In our country, they are widely used in industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmaceutical industry, water conservancy, power, municipal engineering, and steel, and occupy a pivotal position in the national economy.

[0003] However, existing ball valves are easily clogged by impurities in the pipeline, preventing them from opening. Furthermore, ball valves are usually opened by rotating the valve stem, which can easily lead to slippage, making them inconvenient to use and reducing their service life. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by providing a ball valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A ball valve includes a main pipe, a fixed cover fixedly connected to the upper side wall of the main pipe, and a ball movably embedded in the inner wall of the main pipe below the fixed cover. An arc-shaped movable groove matching the ball is formed in the inner wall of the main pipe. A water passage hole is formed in the center of the ball. A rotating shaft is fixedly connected to the upper side wall of the ball, movably penetrating the inner top wall of the main pipe and extending into the fixed cover. A toothed rod is movably penetrating the upper side wall of the fixed cover. A limiting mechanism is provided on the side of the toothed rod located inside the fixed cover, and a pressing drive mechanism is provided between the toothed rod and the rotating shaft. A longitudinally arranged fixed cylinder is fixedly connected to the water inlet end of the main pipe. A water inlet pipe is connected to the side of the fixed cylinder away from the main pipe. A vertically arranged filter screen is fixedly connected inside the water inlet pipe, and a cleaning mechanism is provided between the filter screen and the fixed cylinder.

[0007] Preferably, the pressing drive mechanism includes a bevel gear one fixedly connected to the upper end of the rotating shaft, a horizontal shaft rotatably mounted above the bevel gear one inside the fixed cover, a bevel gear two meshing with the bevel gear one fixedly sleeved in the middle of the horizontal shaft, the diameter of the bevel gear two being larger than the diameter of the bevel gear one, and a gear fixedly sleeved on the outer wall of the horizontal shaft and meshing with the gear rack fixedly connected to the side wall of the bevel gear two, and a spring one connecting the lower end of the gear rack and the surface of the main pipe.

[0008] Preferably, the cleaning mechanism includes a vertical rod fixedly connected inside the water inlet pipe, a lifting rod that slidably contacts the turbine blades is fitted on the outer wall of the vertical rod, a spring is connected between the lower side wall of the lifting rod and the inner bottom wall of the water inlet pipe, a cleaning plate is fixedly connected to the end of the lifting rod near the filter screen, cleaning bristles that are slidably disposed on the surface of the filter screen are fixedly connected to the side wall of the cleaning plate near the filter screen, and a turbine is rotatably installed on the inner rear wall of the fixed cylinder.

[0009] Preferably, the limiting mechanism includes multiple protrusions fixedly connected at equal intervals to the side wall of the toothed bar. A push rod is slidably provided through the front wall of the fixing cover. A cylinder is fixedly connected to one end of the push rod inside the fixing cover. A guide rod is slidably inserted and fixedly connected to the inner wall of the fixing cover at the end of the cylinder away from the push rod. A spring three is connected between the cylinder and the inner rear wall of the fixing cover. A groove is provided on the side wall of the cylinder near the toothed bar. A retaining plate is rotatably connected to the inner top wall of the groove and contacts the upper side wall of the corresponding protrusion. A spring four is connected between the retaining plate and the inner bottom wall of the groove.

[0010] Preferably, a pressure plate is fixedly connected to one end of the toothed rod above the fixed cover, and the surface of the pressure plate is provided with a rubber pad.

[0011] Preferably, one end of the toothed rod located inside the fixed cover is slidably inserted with a limiting rod that is fixedly connected to the upper side wall of the main pipe.

[0012] Preferably, a push plate is fixedly connected to one end of the push rod located on the front side of the fixed cover.

[0013] Preferably, flange rings are fixedly fitted on the sidewalls of the main pipe and the inlet pipe facing away from each other, and each flange ring has a plurality of bolts threadedly connected to its sidewall in a ring with equal spacing.

[0014] Preferably, the front end of the fixed cylinder is open and fits the sealing cover, the sealing cover is transparent, and the surface of the sealing cover and the front end of the fixed cylinder are connected by a plurality of bolts arranged in a ring at equal intervals.

[0015] Compared with existing technologies, the advantages of this ball valve are:

[0016] The user presses down on the pressure plate to push the rack down, and through meshing with the gear, drives the second bevel gear to rotate. Then, the second bevel gear, through meshing with the first bevel gear, drives the rotating shaft and the ball to rotate synchronously, causing the water passage hole to rotate in the horizontal direction, opening the ball valve to allow water to flow in the main pipeline. This replaces the rotation method with the pressing method, making it easier to open the ball valve.

[0017] The filter screen can filter impurities in the flowing water in the inlet pipe to prevent them from entering the main pipe and causing blockage. At the same time, the continuous impact of the flowing water on the turbine and its counterclockwise rotation can realize the up and down reciprocating movement of the lifting rod, which in turn drives the cleaning plate and cleaning brush to move down and reciprocating synchronously to clean the debris on the surface of the filter screen, thus preventing the filter screen from becoming clogged and ensuring the filtration effect of the filter screen.

[0018] When the user presses down the pressure plate to move the toothed rod downwards, the upper surface of the plate is restricted by the inner top of the groove, allowing the toothed rod to move only downwards. Therefore, when the user releases the pressure plate after pressing it down, the direction of the water passage hole inside the ball can be fixed. When closing the ball valve, the user only needs to push the push plate inwards to achieve the effect of automatic closing of the ball valve, which is convenient to use.

[0019] In summary, this invention facilitates the opening of the ball valve by replacing the rotation method with a pressing method. At the same time, the impact of flowing water on the turbine drives the cleaning brush to clean the filter screen reciprocally, ensuring the filtration effect of the filter screen and preventing it from entering the main pipe and causing blockage. Furthermore, the user only needs to push the push plate inward to achieve the effect of automatic closing of the ball valve, making it convenient to use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a ball valve proposed in this invention;

[0021] Figure 2 This is a partial side view of a ball valve proposed in this invention;

[0022] Figure 3 This is a partial structural schematic diagram of a ball valve proposed in this invention;

[0023] Figure 4 This is a side view of the connection between the limiting mechanism and the fixing cover in a ball valve according to the present invention;

[0024] Figure 5 for Figure 1 Enlarged view of the structure of A in the middle.

[0025] In the diagram: 1 Main pipe, 2 Fixed cover, 3 Ball, 4 Bevel gear I, 5 Horizontal shaft, 6 Bevel gear II, 7 Gear, 8 Spring I, 9 Gear rack, 10 Pressure plate, 11 Fixed cylinder, 12 Inlet pipe, 13 Turbine, 14 Filter screen, 15 Vertical rod, 16 Lifting rod, 17 Spring II, 18 Cleaning brush bristles, 19 Push rod, 20 Cylinder, 21 Spring III, 22 Push plate, 23 Groove, 24 Clamping plate, 25 Spring IV, 26 Protrusion, 27 Flange ring, 28 Bolt I, 29 Sealing cap, 30 Bolt II. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Reference Figures 1-5 A ball valve includes a main pipe 1, with a fixed cylinder 11 fixedly connected to the inlet end of the main pipe 1. The front end of the fixed cylinder 11 is open and fits a sealing cover 29. The sealing cover 29 is transparent, and a plurality of bolts 2 30 arranged in a ring at equal intervals are threadedly connected between the surface of the sealing cover 29 and the front end of the fixed cylinder 11. The blockage inside the fixed cylinder 11 can be directly observed through the transparent sealing cover 29. If the blockage is serious, each bolt 2 30 can be unscrewed to remove the sealing cover 29 and its interior can be cleaned and repaired.

[0029] The fixed cylinder 11 is connected to the water inlet pipe 12 on the side away from the main pipe 1. Flange rings 27 are fixedly fitted on the side walls of the main pipe 1 and the water inlet pipe 12. Each flange ring 27 has multiple bolts 28 threadedly connected to its side wall in a ring at equal intervals. These bolts can be used to connect the ball valve to the pipe. A vertically arranged filter screen 14 is fixedly connected inside the water inlet pipe 12. The filter screen 14 can filter impurities in the flowing water inside the water inlet pipe 12 to prevent them from entering the main pipe 1 and causing blockage.

[0030] A cleaning mechanism is provided between the filter screen 14 and the fixed cylinder 11. The cleaning mechanism includes a vertical rod 15 fixedly connected inside the water inlet pipe 12. A lifting rod 16 that contacts the blades of the turbine 13 is slidably sleeved on the outer wall of the vertical rod 15. A spring 17 is connected between the lower side wall of the lifting rod 16 and the inner bottom wall of the water inlet pipe 12. A cleaning plate is fixedly connected to the end of the lifting rod 16 near the filter screen 14. A cleaning brush bristle 18 that is slidably disposed on the surface of the filter screen 14 is fixedly connected to the side wall of the cleaning plate near the filter screen 14. The turbine 13 is rotatably mounted on the inner rear wall of the fixed cylinder 11. Water enters the fixed cylinder through the water inlet pipe 12. The flowing water inside the fixed cylinder 11 impacts the turbine 13, causing it to rotate counterclockwise. During the rotation of the turbine 13, the lifting rod 16 can be pushed downwards, causing it to move down and squeeze the spring 17. When the turbine 13 disengages from the lifting rod 16, the lifting rod 16 will move upwards under the action of the spring 17. Thus, with the continuous counterclockwise rotation of the turbine 13, the lifting rod 16 can move up and down reciprocally, thereby driving the cleaning plate and cleaning brush to move down and reciprocate synchronously to clean the debris on the surface of the filter screen 14, preventing the filter screen 14 from becoming clogged and ensuring the filtration effect of the filter screen 14.

[0031] A fixed cover 2 is fixedly connected to the upper side wall of the main pipe 1, and a ball 3 located below the fixed cover 2 is movably embedded in the inner wall of the main pipe 1. A water passage hole is opened in the middle of the ball 3, and a rotating shaft that movably penetrates the inner top wall of the main pipe 1 and extends into the fixed cover 2 is fixedly connected to the upper side wall of the ball 3. A toothed rod 9 is provided through the upper side wall of the fixed cover 2. A limiting rod that is fixedly connected to the upper side wall of the main pipe 1 is slidably inserted at one end of the toothed rod 9 located inside the fixed cover 2, which ensures the stability of the toothed rod 9 when it is pressed up and down. A pressure plate 10 is fixedly connected to one end of the toothed rod 9 located above the fixed cover 2. A rubber pad is provided on the surface of the pressure plate 10, which improves the comfort of the user when pressing the toothed rod 9.

[0032] Furthermore, a pressing drive mechanism is provided between the rack 9 and the rotating shaft. The pressing drive mechanism includes a bevel gear 4 fixedly connected to the upper end of the rotating shaft. A horizontal shaft 5 is rotatably installed inside the fixed cover 2, located above the bevel gear 4. A bevel gear 6, which meshes with the bevel gear 4, is fixedly sleeved in the middle of the horizontal shaft 5. The diameter of the bevel gear 6 is larger than that of the bevel gear 4, and a gear 7, which is fixedly sleeved on the outer wall of the horizontal shaft 5 and meshes with the rack 9, is fixedly connected to the side wall of the bevel gear 6. The lower end of the rack 9 and the main pipe... A spring 8 is connected between the surfaces of the ball valve 1. When the valve needs to be opened to allow flow, the user presses down on the pressure plate 10 to push the rack 9 down. Through meshing with the gear 7, the rack 9 drives the bevel gear 6 to rotate. Then, the bevel gear 6, through the bevel gear 4 it meshes with, drives the shaft and the ball 3 to rotate synchronously, causing the water passage to rotate in the horizontal direction, thus opening the ball valve and allowing water to flow in the main pipe 1. This replaces the rotation method with the pressing method, making it easier to open the ball valve.

[0033] The side wall of the rack 9 is provided with a limiting mechanism, which includes multiple protrusions 26 that are fixedly connected to the side wall of the rack 9 at equal intervals. A push rod 19 is slidably provided through the front wall of the fixing cover 2. A cylinder 20 is fixedly connected to one end of the push rod 19 inside the fixing cover 2. A guide rod fixedly connected to the inner wall of the fixing cover 2 is slidably inserted at the end of the cylinder 20 away from the push rod 19. A spring 21 is connected between the cylinder 20 and the inner rear wall of the fixing cover 2. A groove 23 is provided on the side wall of the cylinder 20 near the rack 9. A retaining plate 24 that contacts the upper side wall of the corresponding protrusion 26 is rotatably connected to the inner top wall of the groove 23. A spring 25 is connected between the retaining plate 24 and the inner bottom wall of the groove 23. When the user presses down on the pressure plate 10, the rack 9... When the ball valve moves downward, the protrusion 26 can cause the locking plate 24 to rotate counterclockwise and compress the spring 25. Since the upper surface of the locking plate 24 is restricted by the inner top of the groove 23, the clockwise rotation range of the locking plate 24 is limited. Under the limitation of the clockwise rotation of the locking plate 24 by the protrusion 26, the toothed rod 9 can only move downward in one direction. When the user presses the pressure plate 10 and then releases the pressure plate 10, the position of the toothed rod can be automatically fixed, that is, the direction of the water passage hole in the ball 3 can be fixed. When closing the ball valve, the user only needs to push the push plate 22 inward to make the locking plate 24 move backward and disengage from the protrusion 26. Then, under the action of the spring 8, the toothed rod 9 automatically moves upward to reset, thereby realizing the automatic reset of the ball 3 and achieving the effect of automatic closing of the ball valve, which is convenient to use.

[0034] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A ball valve, comprising a main pipe (1), characterized in that, A fixed cover (2) is fixedly connected to the upper side wall of the main pipe (1), and a sphere (3) located below the fixed cover (2) is movably embedded in the inner wall of the main pipe (1). An arc-shaped movable groove matching the sphere (3) is opened in the inner wall of the main pipe (1). A water passage hole is opened in the middle of the sphere (3), and a rotating shaft that movably penetrates the inner top wall of the main pipe (1) and extends into the fixed cover (2) is fixedly connected to the upper side wall of the sphere (3). A rotating shaft that movably penetrates the upper side wall of the fixed cover (2) is movably embedded in the upper side wall of the fixed cover (2). A rack (9) is provided with a limiting mechanism on one side inside the fixed cover (2), and a pressing drive mechanism is provided between the rack (9) and the rotating shaft. The water inlet end of the main pipe (1) is fixedly connected to a longitudinally arranged fixed cylinder (11). The side of the fixed cylinder (11) away from the main pipe (1) is connected to a water inlet pipe (12). A vertically arranged filter screen (14) is fixedly connected inside the water inlet pipe (12). A cleaning mechanism is provided between the filter screen (14) and the fixed cylinder (11). The cleaning mechanism includes a vertical rod (15) fixedly connected inside the water inlet pipe (12). The outer wall of the vertical rod (15) is slidably fitted with a lifting rod (16) that contacts the blades of the turbine (13). A spring (17) is connected between the lower side wall of the lifting rod (16) and the inner bottom wall of the water inlet pipe (12). A cleaning plate is fixedly connected to one end of the lifting rod (16) near the filter screen (14). A cleaning brush (18) that is slidably disposed on the surface of the filter screen (14) is fixedly connected to one side wall of the cleaning plate near the filter screen (14). The turbine (13) is rotatably installed on the inner rear wall of the fixed cylinder (11). The limiting mechanism includes multiple protrusions (26) that are fixedly connected at equal intervals to the side wall of the toothed rod (9). A push rod (19) is slidably provided through the front wall of the fixed cover (2). A cylinder (20) is fixedly connected to one end of the push rod (19) inside the fixed cover (2). A guide rod is slidably inserted into the end of the cylinder (20) away from the push rod (19) and fixedly connected to the inner wall of the fixed cover (2). A spring three (21) is connected between the cylinder (20) and the inner rear wall of the fixed cover (2). A groove (23) is provided on the side wall of the cylinder (20) near the toothed rod (9). A clamping plate (24) that contacts the upper side wall of the corresponding protrusion (26) is rotatably connected to the inner top wall of the groove (23). A spring four (25) is connected between the clamping plate (24) and the inner bottom wall of the groove (23). A push plate (22) is fixedly connected to one end of the push rod (19) on the front side of the fixed cover (2).

2. A ball valve according to claim 1, characterized in that, The pressing drive mechanism includes a bevel gear 1 (4) fixedly connected to the upper end of the rotating shaft. A horizontal shaft (5) located above the bevel gear 1 (4) is rotatably installed inside the fixed cover (2). A bevel gear 2 (6) that meshes with the bevel gear 1 (4) is fixedly sleeved in the middle of the horizontal shaft (5). The diameter of the bevel gear 2 (6) is larger than that of the bevel gear 1 (4). A gear (7) that is fixedly sleeved on the outer wall of the horizontal shaft (5) and meshes with the rack (9) is fixedly connected to the side wall of the bevel gear 2 (6). A spring 1 (8) is connected between the lower end of the rack (9) and the surface of the main pipe (1).

3. A ball valve according to claim 1, characterized in that, The toothed rod (9) is fixedly connected to a pressure plate (10) at one end above the fixed cover (2), and the surface of the pressure plate (10) is provided with a rubber pad.

4. A ball valve according to claim 1, characterized in that, The toothed rod (9) is slidably inserted at one end inside the fixed cover (2) and fixedly connected to the upper side wall of the main pipe (1).

5. A ball valve according to claim 1, characterized in that, The main pipe (1) and the water inlet pipe (12) are respectively fitted with flange rings (27) on the opposite side walls. Each flange ring (27) is threaded with a plurality of bolts (28) arranged in a ring at equal intervals.

6. A ball valve according to claim 1, characterized in that, The front end of the fixed cylinder (11) is open and fits the sealing cover (29). The sealing cover (29) is transparent and the surface of the sealing cover (29) and the front end of the fixed cylinder (11) are connected by a plurality of bolts (30) arranged in a ring at equal intervals.

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