Filtering ball valve

Abstract

The utility model discloses a filtering ball valve, and belongs to the technical field of ball valves. A filtering ball valve comprises a valve body, a valve element, a valve rod and a hand wheel. The lower end of the valve rod is fixedly connected with the valve element, the upper end of the valve rod penetrates through the valve body and is connected with the hand wheel, and the hand wheel is rotated to drive the valve element to rotate. The device further comprises a fixing ring, a pressing ring and a filter screen. The right end of the pressing ring is sleeved with the fixing ring, and the filter screen is arranged between the fixing ring and the pressing ring. A sealing groove is formed in the valve body, the filtering ring and the pressing ring are installed in the sealing groove, and the upper end of the fixing ring is detachably connected with the sealing groove. The sealing groove is formed in the valve body, the fixing ring and the pressing ring are installed in the sealing groove, meanwhile, the filter screen is clamped between the fixing ring and the pressing ring, the filtering purpose can be achieved, meanwhile, when the filter screen is replaced, only the fixing ring and the pressing ring need to be taken out of the sealing groove, operation is easy, and replacement is convenient; and the filter screen can be replaced and cleaned without disassembling the valve body.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and more specifically relates to a filtering ball valve. Background Art

[0002] The ball valve is a kind of opening and closing part; the valve core ball is driven by the valve stem and rotates 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 its 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.

[0003] During the use of the ball valve, there are often impurities in the fluid medium. If it is not filtered, it will be blocked on the valve core, making it difficult to open and close the ball valve, affecting the normal use of the ball valve. Traditional ball valve filtering devices use a filter installed at the flange of the valve body water inlet for filtering. Therefore, when cleaning the filter, the valve needs to be disassembled to clean and replace the filter, which is cumbersome. At the same time, repeated disassembly of the valve connection may easily cause leakage at the valve connection, affecting the sealing of the valve. Therefore, a filtering ball valve is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a filtering ball valve, which can realize the disassembly, cleaning and replacement of the filter screen without disassembling the valve, is simple and convenient to operate, and avoids the problem of leakage.

[0005] The utility model discloses a filtering ball valve, comprising a valve body, a valve core, a valve stem and a hand wheel; the valve core is rotatably installed in the valve body, the lower end of the valve stem is fixedly connected to the valve core, the upper end of the valve stem penetrates the valve body and is connected to the hand wheel, and the valve core is rotated by rotating the hand wheel; it also comprises a fixing ring, a pressing ring and a filter screen; the right end of the pressing ring is sleeved in the fixing ring, and the filter screen is arranged between the fixing ring and the pressing ring; a sealing groove is arranged on the valve body, the filter ring and the pressing ring are arranged in the sealing groove, and the upper end of the fixing ring is detachably connected to the sealing groove.

[0006] As a further improvement of the utility model, a first sealing ring is installed on the left end face of the pressure ring, and the first sealing ring abuts against the inner wall of the installation groove to form a seal. A second sealing ring is installed on the right end face of the fixed ring, and the second sealing ring abuts against the inner wall of the installation groove to form a seal.

[0007] As a further improvement of the utility model, positioning holes are provided at the upper end of the fixing ring and the upper end of the sealing groove, and positioning pins are installed in the positioning holes.

[0008] As a further improvement of the utility model, a handle is fixedly mounted on the upper end of the fixing ring, and the handle abuts against the upper end surface of the sealing groove.

[0009] As a further improvement of the utility model, the inner wall of the upper end of the sealing groove is provided with a chamfer.

[0010] Compared with the prior art, the advantages of the present invention are:

[0011] The utility model provides a sealing groove on the valve body, and then installs the fixing ring and the pressure ring into the sealing groove, and at the same time clamps the filter net between the fixing ring and the pressure ring, so as to achieve the purpose of filtering. At the same time, when replacing the filter net, it is only necessary to take out the fixing ring and the pressure ring from the sealing groove, which is simple to operate and convenient to replace; the filter net can be replaced and cleaned without disassembling the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 This is a structural schematic diagram of the sealing groove of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the fixing ring of the utility model;

[0016] Figure 5 It is a schematic diagram of the explosion of the fixing ring of the utility model.

[0017] Description of the numbers in the figure:

[0018] 1. Valve body; 2. Valve core; 3. Valve stem; 4. Handwheel; 5. Fixed ring; 6. Pressure ring; 7. Filter screen; 8. Sealing groove; 9. First sealing ring; 10. Second sealing ring; 11. Positioning hole; 12. Positioning pin; 13. Handle; 14. Chamfer. DETAILED DESCRIPTION

[0019] Specific embodiment 1: Please refer to Figure 1-5 A filtering ball valve comprises a valve body 1, a valve core 2, a valve stem 3 and a hand wheel 4; the valve core 2 is rotatably installed in the valve body 1, the lower end of the valve stem 3 is fixedly connected to the valve core 2, the upper end of the valve stem 3 penetrates the valve body 1 and is connected to the hand wheel 4, and the valve core 2 is rotated by rotating the hand wheel 4:

[0020] It also includes a fixing ring 5, a pressing ring 6 and a filter screen 7; the right end of the pressing ring 6 is sleeved in the fixing ring 5, and the filter screen 7 is arranged between the fixing ring 5 and the pressing ring 6; the filter screen 7 can be pressed and fixed by the cooperation of the pressing ring 6 and the fixing ring 5, and when replacing and cleaning the filter screen 7, it is only necessary to remove the pressing ring 6 from the fixing ring 5, which is simple and convenient to operate; a sealing groove 8 is provided on the valve body 1, and the filter ring and the pressing ring 6 are installed in the sealing groove 8, and at the same time, a first sealing ring 9 is installed on the left end face of the pressing ring 6, and the first sealing ring 9 is abutted against the inner wall of the sealing groove 8 to form a seal, and a second sealing ring 10 is installed on the right end face of the fixing ring 5, and the second sealing ring 10 is abutted against the inner wall of the sealing groove 8 to form a seal; the first sealing ring 9 and the second sealing ring 10 can achieve the purpose of sealing the fixing ring 5 and the pressing ring 6 with the sealing groove 8, thereby avoiding the problem of medium leakage.

[0021] A positioning hole 11 is provided at the upper end of the fixing ring 5 and the upper end of the sealing groove 8, and a positioning pin 12 is installed in the positioning hole 11; through the cooperation of the positioning hole 11 and the positioning pin 12, the installation and fixation of the fixing ring 5 and the sealing groove 8 can be facilitated, and a handle 13 is fixedly installed on the upper end of the fixing ring 5, and the handle 13 is abutted against the upper end surface of the sealing groove 8, and the fixing ring 5 can be conveniently pulled for disassembly and installation through the handle 13. At the same time, a chamfer 14 is provided on the inner wall of the upper end of the sealing groove 8; the setting of the chamfer 14 can facilitate the installation of the fixing ring 5 and the pressure ring 6 into the sealing groove 8 during installation, thereby facilitating the assembly of the device.

[0022] Working principle: In the utility model, the filter screen 7 is fixed by inserting the pressure ring 6 into the fixing ring 5 and clamping the filter screen 7 between the pressure ring 6 and the fixing ring 5, and then the fixing ring 5 and the pressure ring 6 are installed in the sealing groove 8. The first sealing ring 9 and the second sealing ring 10 can seal and prevent leakage, and then the positioning pin 12 is inserted into the positioning hole 11 to complete the assembly of the ball valve; when cleaning and replacing the filter screen 7, it is only necessary to remove the positioning pin 12, and pull the fixing ring 5 and the pressure ring 6 out of the sealing groove 8 to replace the filter screen 7. The operation is simple and convenient, and there is no need to connect and disassemble the entire ball valve, thereby ensuring the sealing of the ball valve.

[0023] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A filter ball valve, comprising a valve body (1), a valve core (2), a valve stem (3) and a hand wheel (4); the valve core (2) is rotatably mounted in the valve body (1), the lower end of the valve stem (3) is fixedly connected to the valve core (2), the upper end of the valve stem (3) passes through the valve body (1) and is connected to the hand wheel (4), and the valve core (2) is driven to rotate by rotating the hand wheel (4); the characteristics are: It also includes a fixing ring (5), a pressing ring (6) and a filter screen (7); the right end of the pressing ring (6) is sleeved inside the fixing ring (5), and the filter screen (7) is arranged between the fixing ring (5) and the pressing ring (6); a sealing groove (8) is arranged on the valve body (1), the filter ring and the pressing ring (6) are installed in the sealing groove (8), and the upper end of the fixing ring (5) is detachably connected to the sealing groove (8).

2. A filter ball valve according to claim 1, characterized in that: A first sealing ring (9) is installed on the left end surface of the pressure ring (6), and the first sealing ring (9) abuts against the inner wall of the sealing groove (8) to form a seal. A second sealing ring (10) is installed on the right end surface of the fixing ring (5), and the second sealing ring (10) abuts against the inner wall of the sealing groove (8) to form a seal.

3. A filter ball valve according to claim 1, characterized in that: A positioning hole (11) is provided at the upper end of the fixing ring (5) and the upper end of the sealing groove (8), and a positioning pin (12) is installed in the positioning hole (11).

4. A filter ball valve according to claim 1, characterized in that: A handle (13) is fixedly mounted on the upper end of the fixing ring (5), and the handle (13) abuts against the upper end surface of the sealing groove (8).

5. A filter ball valve according to claim 4, characterized in that: The inner wall at the upper end of the sealing groove (8) is provided with a chamfer (14).

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