Ball valve with filtering assembly convenient to clean

Abstract

The utility model belongs to the technical field of ball valves, and particularly relates to a ball valve with a filtering assembly convenient to clean. Comprising a valve body, a valve ball, an elastic sealing ring and a filtering assembly, the first connecting ring is arranged in the positioning ring groove, a first ring groove is formed in the inner periphery of the top of the first connecting ring, and a second ring groove is formed in the bottom of the first ring groove; the second connecting ring is clamped in the first ring groove, and a third ring groove is formed in the bottom of the second connecting ring; the top of the first filter cartridge is arranged in the third ring groove; the brush assembly comprises a plurality of rod-shaped brushes which abut against the outer peripheral wall of the first filter cartridge and the inner peripheral wall of the pipe body and is provided with a handle located at the outer bottom of the pipe body; the handle is rotated by fingers, so that the rod-shaped brushes rotate on the outer peripheral wall of the first filter cartridge, impurities on the outer peripheral wall of the first filter cartridge and the inner peripheral wall of the pipe body can be brushed away, and the function of cleaning the filter assembly is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and in particular relates to a ball valve which is convenient for cleaning a filter assembly. Background Art

[0002] A ball valve is a valve that controls the flow of a flowing medium and the flow rate of the flowing medium by rotating the valve stem to drive the valve ball to rotate. Since there will be a small amount of impurities in the flowing medium, such as solid particles such as mud and sand, the impurities will accumulate on the sealing ring after a period of time. During the rotation of the valve ball, these impurities will rub against the surface of the valve ball and the surface of the sealing ring, causing wear, which seriously affects the sealing effect of the ball valve and causes medium leakage. Therefore, the existing ball valve also has a filter assembly arranged on the valve body, and a filter screen is arranged in the filter assembly to filter impurities in the medium.

[0003] In the prior art, the filter needs to be removed from the tube body of the filter assembly, and impurities adsorbed on the filter and between the filter and the inner wall of the tube body need to be manually cleaned using tools, and then the filter and the end cover at the bottom of the tube body need to be installed in turn, which is very inconvenient to clean. Utility Model Content

[0004] The purpose of the utility model is to provide a ball valve that is easy to clean the filter assembly in order to solve the above-mentioned technical problems. By turning the handle with fingers, a plurality of rod-shaped brushes are rotated on the outer peripheral wall of the first filter cartridge, so that impurities on the outer peripheral wall of the first filter cartridge can be brushed off, thereby achieving the cleaning function of the first filter cartridge.

[0005] In view of this, the utility model provides a ball valve for facilitating the cleaning of a filter assembly, comprising a valve body, a valve ball disposed in the valve body, a valve stem connected to the valve ball, an elastic sealing ring abutting against both sides of the valve ball, and a filter assembly obliquely connected to the valve body, wherein the filter assembly comprises:

[0006] The pipe body is obliquely arranged on the valve body, a water inlet is provided on the side wall of the pipe body, a water outlet is provided on the top of the pipe body, a positioning ring groove is provided on the water outlet, and a limiting hole is provided at the bottom of the pipe body;

[0007] A first connecting ring is arranged in the positioning ring groove, a first ring groove is formed on the inner circumference of the top of the first connecting ring, and a second ring groove is formed on the bottom of the first ring groove;

[0008] The second connecting ring is clamped in the first ring groove, and a third ring groove is formed at the bottom of the second connecting ring;

[0009] A first filter cartridge, the top of which is disposed in the third annular groove;

[0010] The brush assembly includes a plurality of rod-shaped brushes that abut against the outer wall of the first filter cartridge and the inner wall of the tube body, a base connected to the bottom of the rod-shaped brushes, and a rotating ring connected to the top of the rod-shaped brushes. The rotating ring is rotatably arranged in the second ring groove, and a first rotating shaft rotatably connected to the limiting hole is arranged at the bottom of the base, and a handle located at the bottom of the tube body is arranged on the first rotating shaft.

[0011] In the above solution, further, the tube body includes:

[0012] The filter tube is obliquely arranged on the valve body;

[0013] The end cover is threadedly connected to the bottom of the filter tube, and the limiting hole is arranged on the end cover.

[0014] In the above scheme, further, a second rotating shaft coaxial with the first rotating shaft is arranged on the top of the base, a limiting groove is arranged on the bottom of the first filter cartridge, and the second rotating shaft is rotatably connected in the limiting groove.

[0015] In the above scheme, further, a fourth annular groove is formed at the bottom of the second connecting ring, the second filter cartridge is sleeved in the first filter cartridge, and the top of the second filter cartridge is arranged in the fourth annular groove.

[0016] In the above solution, further, an annular accommodating cavity is formed between the first filter cartridge and the second filter cartridge, and a support frame is arranged in the annular accommodating cavity, and the support frame includes:

[0017] A plurality of connecting rods are arranged in a circular array in the annular accommodation cavity;

[0018] A plurality of annular members are arranged on a plurality of connecting rods, the outer peripheral walls of the plurality of annular members abut against the inner peripheral wall of the first filter cartridge, and the inner peripheral walls of the plurality of annular members abut against the outer peripheral wall of the second filter cartridge.

[0019] In the above solution, further, the outer surface of the handle is provided with anti-slip grooves.

[0020] In the above scheme, further, the inner peripheral wall of the valve body is symmetrically provided with limiting ring grooves located on both sides of the valve ball, and the elastic sealing ring is arranged in the limiting ring groove, and the elastic sealing ring includes:

[0021] The elastic ring part is arranged in the limiting ring groove, and the outer peripheral wall and the inner peripheral wall of the elastic ring part are respectively axially provided with deformation ring grooves;

[0022] The convex ring part is arranged on one side of the elastic ring part close to the valve ball, and the convex ring part comprises an arc surface which abuts against the surface of the valve ball.

[0023] In the above solution, further, a deformation ring groove is also axially arranged on a side of the elastic ring portion facing away from the convex ring portion.

[0024] In the above solution, further, the surface of the deformation ring groove is an arc surface.

[0025] The beneficial effects of the utility model are:

[0026] 1. When too much impurities are accumulated on the outer wall of the first filter cartridge, the handle can be rotated by fingers to make multiple rod-shaped brushes rotate on the outer wall of the first filter cartridge, so as to remove the impurities on the outer wall of the first filter cartridge and between the first filter cartridge and the inner wall of the tube body, thereby achieving the cleaning function of the first filter cartridge;

[0027] 2. The elastic sealing ring is provided with deformation ring grooves on the outer circumferential wall and the inner circumferential wall of the elastic ring part. When the valve ball is subjected to high-pressure impact and produces slight vibration, the elastic sealing ring can generate corresponding elastic repulsive force according to the displacement of the valve ball, and tightly contact with the surface of the valve ball, thereby improving the sealing performance between the convex ring part and the valve ball surface and the sealing performance between the elastic ring part and the limiting ring groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0030] Figure 3 It is a schematic structural diagram of the assembly of the first connecting ring, the second connecting ring and the brush assembly of the utility model;

[0031] Figure 4 It is a schematic cross-sectional structure diagram of the brush assembly of the utility model;

[0032] Figure 5 The utility model Figure 2 A schematic diagram of the structure at A;

[0033] Figure 6 It is a schematic diagram of the exploded structure of the first filter cartridge, the second filter cartridge and the support frame of the utility model;

[0034] Figure 7 It is a schematic diagram of the cross-sectional structure of the elastic sealing ring of the utility model;

[0035] Figure 8 The utility model Figure 2 Schematic diagram of the structure at B.

[0036] The symbols in the figure are:

[0037] 1. Tube body; 11. Filter tube; 12. End cover; 2. First connecting ring; 3. Second connecting ring; 4. First filter cartridge; 5. Brush assembly; 51. Rod-shaped brush; 52. Base; 53. Rotating ring; 54. First rotating shaft; 55. Handle; 56. Second rotating shaft; 6. Water inlet; 7. Water outlet; 8. Positioning ring groove; 9. Limiting hole; 10. First ring groove; 13. Second ring groove; 14. Third ring groove; 15. Limiting groove; 16. Fourth ring groove; 17. Second filter cartridge; 18. Annular accommodating chamber; 19. Support frame; 191. Connecting rod; 192. Ring member; 20. Anti-slip groove; 21. Limiting ring groove; 22. Elastic ring portion; 23. Convex ring portion; 24. Deformation ring groove. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0039] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] Embodiment 1:

[0041] This embodiment provides a ball valve for facilitating the cleaning of a filter assembly, comprising a valve body, a valve ball disposed in the valve body, a valve stem connected to the valve ball, an elastic sealing ring abutting against both sides of the valve ball, and a filter assembly obliquely connected to the valve body, wherein the filter assembly comprises:

[0042] The pipe body 1 is obliquely arranged on the valve body, a water inlet 6 is provided on the side wall of the pipe body 1, a water outlet 7 is provided on the top of the pipe body 1, a positioning ring groove 8 is provided on the water outlet 7, and a limiting hole 9 is provided at the bottom of the pipe body 1;

[0043] The first connecting ring 2 is arranged in the positioning ring groove 8, a first ring groove 10 is formed on the inner circumference of the top of the first connecting ring 2, and a second ring groove 13 is formed on the bottom of the first ring groove 10;

[0044] The second connecting ring 3 is clamped in the first ring groove 10, and a third ring groove 14 is formed at the bottom of the second connecting ring 3;

[0045] The first filter cartridge 4, the top of which is disposed in the third annular groove 14;

[0046] The brush assembly 5 includes a plurality of rod-shaped brushes 51 that abut against the outer circumferential wall of the first filter cartridge 4 and the inner circumferential wall of the tube body 1, a base 52 connected to the bottom of the rod-shaped brush 51, and a rotating ring 53 connected to the top of the rod-shaped brush 51. The rotating ring 53 is rotatably arranged in the second annular groove 13. A first rotating shaft 54 ​​rotatably connected to the limiting hole 9 is arranged at the bottom of the base 52. A handle 55 located at the outer bottom of the tube body 1 is arranged on the first rotating shaft 54.

[0047] In the present technical solution, the filter assembly is used to filter impurities in the medium to prevent the impurities from accumulating on the elastic sealing ring. When the valve ball rotates, it rubs against the elastic sealing ring, causing the sealing effect to deteriorate.

[0048] The tube body 1 is inclined toward the valve ball side, the medium enters from the water inlet 6, is filtered by the first filter cartridge 4, and finally, the impurities are left in the cavity between the first filter cartridge 4 and the tube body 1, the filtered medium enters the first filter cartridge 4, and flows out from the water outlet 7 to the valve ball, and finally flows out of the valve body. The first filter cartridge 4 is a cylindrical structure, which may include a cylindrical filter screen and a cylinder bottom, the filter holes are arranged on the cylinder body, the cylinder bottom abuts against the base 52 of the brush assembly 5, and the top of the first filter cartridge 4 is inserted into the third ring groove 14 of the second connecting ring 3, so as to stabilize the position of the first filter cartridge 4.

[0049] The first connecting ring 2 and the second connecting ring 3 can be made of plastic. The brush assembly 5 is installed from top to bottom into the second ring groove 13 of the first connecting ring 2, so that the rotating ring 53 can rotate in the second ring groove 13, and then the second connecting ring 3 is clamped into the first ring groove 10 of the first connecting ring 2, and then the first connecting ring 2 is set in the positioning ring groove 8. At the same time, the top of the second connecting ring 3 also contacts the positioning ring groove 8, so that the brush assembly 5 can rotate axially. Among them, the handle 55 can be clamped at the bottom end of the first rotating shaft 54 ​​and installed outside the bottom of the tube body 1.

[0050] When too many impurities accumulate on the outer wall of the first filter cartridge 4, the handle 55 can be rotated by fingers, thereby causing multiple rod-shaped brushes 51 to rotate on the outer wall of the first filter cartridge 4. There can be four rod-shaped brushes 51, each having a plurality of bristles. The bristles come into contact with the inner wall of the tube body 1 and the outer wall of the first filter cartridge 4 during rotation, so that impurities on the outer wall of the first filter cartridge 4 and between the first filter cartridge 4 and the inner wall of the tube body 1 can be brushed off. Then, the brush assembly 5 together with the first connecting ring 2, the second connecting ring 3 and the first filter cartridge 4 are taken out together to discharge impurities remaining in the cavity between the first filter cartridge 4 and the tube body 1, thereby achieving the cleaning function of the outer wall of the filter net of the first filter cartridge 4.

[0051] Furthermore, the tube body 1 comprises:

[0052] The filter tube 11 is obliquely arranged on the valve body;

[0053] The end cover 12 is threadedly connected to the bottom of the filter tube 11 , and the limiting hole 9 is arranged on the end cover 12 .

[0054] In the present technical solution, after brushing off the impurities on the outer wall of the first filter cartridge 4, when removing the end cover 12, the brush assembly 5, the first connecting ring 2, the second connecting ring 3 and the first filter cartridge 4 can be taken out together. When installing, the end cover 12 can also be directly threadedly connected to the bottom of the filter tube 11, and installed in the filter tube 11 together with the brush assembly 5, the first connecting ring 2, the second connecting ring 3 and the first filter cartridge 4, which makes it easy to install and disassemble.

[0055] Embodiment 2:

[0056] This embodiment provides a ball valve that is easy to clean the filter assembly. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0057] A second rotating shaft 56 coaxial with the first rotating shaft 54 ​​is disposed on the top of the base 52 , and a limiting groove 15 is disposed on the bottom of the first filter cartridge 4 , and the second rotating shaft 56 is rotatably connected in the limiting groove 15 .

[0058] In the present technical solution, the second rotating shaft 56 is rotatably connected in the limiting groove 15 , so as to further improve the stability of the brush assembly 5 and the first filter cartridge 4 .

[0059] Embodiment 3:

[0060] This embodiment provides a ball valve that is easy to clean the filter assembly. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0061] A fourth annular groove 16 is further formed at the bottom of the second connecting ring 3 . A second filter cartridge 17 is sleeved in the first filter cartridge 4 . The top of the second filter cartridge 17 is disposed in the fourth annular groove 16 .

[0062] In the present technical solution, the pore size of the filter hole of the second filter cartridge 17 may be smaller than that of the second filter cartridge 17 , and the second filter cartridge 17 is used to further filter the medium to improve the cleanliness of the medium.

[0063] Embodiment 4:

[0064] This embodiment provides a ball valve that is easy to clean the filter assembly. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0065] An annular accommodating chamber 18 is formed between the first filter cartridge 4 and the second filter cartridge 17. A support frame 19 is disposed in the annular accommodating chamber 18. The support frame 19 includes:

[0066] A plurality of connecting rods 191 are arranged in a circular array in the annular accommodation cavity 18;

[0067] Multiple annular members 192 are arranged on multiple connecting rods 191 , and the outer circumferential walls of the multiple annular members 192 abut against the inner circumferential wall of the first filter cartridge 4 , and the inner circumferential walls of the multiple annular members 192 abut against the outer circumferential wall of the second filter cartridge 17 .

[0068] In the present technical solution, the support frame 19 may be made of plastic material, and the support frame 19 is used to support the first filter cartridge 4 to improve the stability of the first filter cartridge 4 and the second filter cartridge 17 .

[0069] Embodiment 5:

[0070] This embodiment provides a ball valve that is easy to clean the filter assembly. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0071] The outer surface of the handle 55 is provided with anti-slip grooves 20 .

[0072] In the present technical solution, the handle 55 may be a cylinder, and the anti-skid grooves 20 may be arranged radially along the handle 55 . The anti-skid grooves 20 are used to prevent skidding when the handle 55 is rotated.

[0073] Embodiment 6:

[0074] This embodiment provides a ball valve that is easy to clean the filter assembly. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0075] The inner peripheral wall of the valve body is symmetrically provided with limiting ring grooves 21 located on both sides of the valve ball, and the elastic sealing ring is arranged in the limiting ring groove 21. The elastic sealing ring includes:

[0076] The elastic ring portion 22 is arranged in the limiting ring groove 21, and the outer peripheral wall and the inner peripheral wall of the elastic ring portion 22 are axially provided with deformation ring grooves 24 respectively;

[0077] The convex ring portion 23 is disposed on a side of the elastic ring portion 22 close to the valve ball. The convex ring portion 23 includes an arc surface that contacts the surface of the valve ball.

[0078] In the present technical solution, the elastic sealing ring can be made of polytetrafluoroethylene. The valve ball and the elastic sealing ring can be interference fit, and the surface of the valve ball is tightly in contact with the convex ring part 23. When the valve ball is subjected to high-pressure impact and produces slight vibration, the deformation ring groove 24 of the outer peripheral wall of the elastic ring part 22 is squeezed, or the deformation ring groove 24 of the inner peripheral wall of the elastic ring part 22 is squeezed, so that the elastic sealing ring can generate corresponding elastic repulsion according to the displacement of the valve ball, tightly in contact with the surface of the valve ball, and improve the sealing between the convex ring part 23 and the surface of the valve ball and the sealing between the elastic ring part 22 and the limiting ring groove 21. The arc surface of the convex ring part 23 is a convex arc surface, which can increase the deformation degree of the convex ring part 23, increase the contact surface with the valve ball, and further improve the sealing.

[0079] Furthermore, a deformation annular groove 24 is also axially arranged on a side of the elastic annular portion 22 facing away from the convex annular portion 23 .

[0080] In the present technical solution, a deformation ring groove 24 is also axially arranged on the side of the elastic ring portion 22 facing away from the convex ring portion 23 to increase the degree of axial deformation of the elastic ring portion 22 and improve the sealing performance.

[0081] Furthermore, the surface of the deformation ring groove 24 is a curved surface.

[0082] In this technical solution, the cambered surface can reduce stress concentration and extend the service life of the elastic sealing ring.

[0083] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A ball valve for easy cleaning of a filter assembly, characterized in that: The invention comprises a valve body, a valve ball arranged in the valve body, a valve stem connected to the valve ball, an elastic sealing ring abutting against both sides of the valve ball, and a filter assembly obliquely connected to the valve body, wherein the filter assembly comprises: The pipe body (1) is obliquely arranged on the valve body, a water inlet (6) is provided on the side wall of the pipe body (1), a water outlet (7) is provided on the top of the pipe body (1), a positioning ring groove (8) is provided on the water outlet (7), and a limiting hole (9) is provided on the bottom of the pipe body (1); A first connecting ring (2) is arranged in the positioning ring groove (8), a first ring groove (10) is provided on the inner circumference of the top of the first connecting ring (2), and a second ring groove (13) is provided at the bottom of the first ring groove (10); The second connecting ring (3) is clamped in the first ring groove (10), and a third ring groove (14) is formed at the bottom of the second connecting ring (3); A first filter cartridge (4), the top of which is disposed in a third annular groove (14); The brush assembly (5) comprises a plurality of rod-shaped brushes (51) which abut against the outer peripheral wall of the first filter cartridge (4) and the inner peripheral wall of the tube body (1), a base (52) connected to the bottom of the rod-shaped brushes (51) and a rotating ring (53) connected to the top of the rod-shaped brushes (51), wherein the rotating ring (53) is rotatably arranged in a second annular groove (13), a first rotating shaft (54) rotatably connected to a limiting hole (9) is arranged at the bottom of the base (52), and a handle (55) located at the outer bottom of the tube body (1) is arranged on the first rotating shaft (54).

2. A ball valve for easy cleaning of a filter assembly according to claim 1, characterized in that: The tube body (1) comprises: A filter tube (11) is obliquely arranged on the valve body; The end cover (12) is threadedly connected to the bottom of the filter tube (11), and the limiting hole (9) is arranged on the end cover (12).

3. A ball valve for easy cleaning of a filter assembly according to claim 1, characterized in that: A second rotating shaft (56) coaxial with the first rotating shaft (54) is arranged on the top of the base (52), a limiting groove (15) is arranged on the bottom of the first filter cartridge (4), and the second rotating shaft (56) is rotatably connected in the limiting groove (15).

4. A ball valve for easy cleaning of a filter assembly according to claim 1, characterized in that: A fourth annular groove (16) is also provided at the bottom of the second connecting ring (3); a second filter cartridge (17) is sleeved in the first filter cartridge (4); and the top of the second filter cartridge (17) is arranged in the fourth annular groove (16).

5. A ball valve for easy cleaning of a filter assembly according to claim 4, characterized in that: An annular accommodating chamber (18) is formed between the first filter cartridge (4) and the second filter cartridge (17), and a support frame (19) is arranged in the annular accommodating chamber (18). The support frame (19) comprises: A plurality of connecting rods (191) are arranged in a circular array in the annular accommodation cavity (18); A plurality of annular members (192) are arranged on a plurality of connecting rods (191), the outer peripheral walls of the plurality of annular members (192) abut against the inner peripheral wall of the first filter cartridge (4), and the inner peripheral walls of the plurality of annular members (192) abut against the outer peripheral wall of the second filter cartridge (17).

6. A ball valve for easy cleaning of a filter assembly according to claim 1, characterized in that: The outer surface of the handle (55) is provided with anti-slip grooves (20).

7. A ball valve for easy cleaning of a filter assembly according to claim 1, characterized in that: The inner peripheral wall of the valve body is symmetrically provided with limiting ring grooves (21) located on both sides of the valve ball, and the elastic sealing ring is arranged in the limiting ring groove (21). The elastic sealing ring comprises: The elastic ring part (22) is arranged in the limiting ring groove (21), and the outer peripheral wall and the inner peripheral wall of the elastic ring part (22) are respectively axially provided with deformation ring grooves (24); The convex ring portion (23) is arranged on a side of the elastic ring portion (22) close to the valve ball, and the convex ring portion (23) comprises an arc surface that contacts the surface of the valve ball.

8. A ball valve for easy cleaning of a filter assembly according to claim 7, characterized in that: A deformation annular groove (24) is also axially arranged on the side of the elastic annular portion (22) facing away from the convex annular portion (23).

9. A ball valve for easy cleaning of a filter assembly according to claim 8, characterized in that: The surface of the deformation annular groove (24) is a curved surface.

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