Butterfly valve with filter screen convenient to disassemble

Abstract

The butterfly valve comprises a butterfly valve body, an inlet end and an outlet end are arranged at the two ends of the butterfly valve body respectively, an arc-shaped assembly groove is formed in the outer wall, close to the inlet end, of the butterfly valve body, arc-shaped assembly bases are arranged on the inner walls of the two sides of the assembly groove, and the arc-shaped assembly bases are connected with the inlet end and the outlet end of the butterfly valve body. A sealing piece is arranged above the arc-shaped assembling base and comprises an arc-shaped sealing plate, inserting blocks are annularly distributed on the inner wall of the arc-shaped sealing plate at intervals, a plurality of inserting holes are annularly distributed in the outer wall of the arc-shaped assembling base at intervals, and a breaking block is arranged at one end of the outer wall of the arc-shaped sealing plate; and a filter screen assembly part is arranged between the arc-shaped assembly seats. The problems that an existing butterfly valve filter screen is tedious and inconvenient to disassemble and low in efficiency, part of assembly parts protrude out of a valve body, normal installation and placement of the valve body are prone to be affected, collision and damage are prone to occurring, and normal use is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve which is convenient for removing a filter screen. Background Art

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve used for on-off control of low-pressure pipeline media. A butterfly valve is a valve whose closing element (disc or disc) is a disc that rotates around the valve shaft to open and close. The valve can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media. It primarily serves to cut off and throttle flow in pipelines. The opening and closing element of a butterfly valve is a disc-shaped disc that rotates around its own axis within the valve body to achieve the purpose of opening, closing, or regulating.

[0003] Announcement number: CN221683628U, named "A butterfly valve for easy removal of filter screen", includes a valve body, a butterfly plate positioned in the inner cavity of the valve body and a filter screen located on one side of the butterfly plate. A plug-in groove in a circular arc shape that is connected to the inner cavity and two first lugs are respectively located at both ends of the plug-in groove. The plug-in groove is coaxially arranged with the valve body. The cross-section of the plug-in groove in the circumferential direction of the valve body is countersunk and the small end is connected to the inner cavity of the valve body. It also includes a side cover matching the plug-in groove. Second lugs that can be fixedly connected to the lugs by bolts are provided at both ends of the side cover. A clamping ring for clamping the filter screen is provided on the inner wall of the side cover facing the inner cavity of the valve body.

[0004] The disassembly process of the existing butterfly valve filter is cumbersome and inconvenient, with low efficiency. Some assembly parts protrude from the outside of the valve body, which easily affects the normal installation and placement of the valve body, and is easily bumped and damaged, affecting normal use. Therefore, it does not meet the existing needs, and a butterfly valve that is easy to remove the filter is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a butterfly valve that is easy to remove the filter screen, so as to solve the problems raised in the above background technology that the disassembly process of the existing butterfly valve filter screen is relatively cumbersome and inconvenient, the efficiency is low, some assembly parts protrude from the outside of the valve body, which easily affects the normal installation and placement of the valve body, and is easily bumped and damaged, affecting normal use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a butterfly valve that is easy to remove the filter screen, comprising: a butterfly valve body, an inlet end and an outlet end are respectively provided at both ends of the butterfly valve body, an arc-shaped assembly groove is provided on the outer wall of the butterfly valve body near the inlet end, an arc-shaped assembly seat is provided on the inner walls on both sides of the assembly groove, a sealing member is provided above the arc-shaped assembly seat, the sealing member comprises an arc-shaped sealing plate, plug blocks are provided at annular intervals on the inner wall of the arc-shaped sealing plate, a plurality of jacks are provided at annular intervals on the outer wall of the arc-shaped assembly seat, a breaking block is provided at one end of the outer wall of the arc-shaped sealing plate, and a filter screen assembly part is provided between the arc-shaped assembly seats.

[0007] Preferably, the filter screen assembly comprises an upper assembly rack, a lower assembly rack is provided below the upper assembly rack, and a metal filter screen cover is provided between the upper assembly rack and the lower assembly rack.

[0008] Preferably, a groove is provided on the upper surface of the upper assembly frame, a rotating shaft is provided on both sides of the groove, and a handle is provided on the outer wall of the rotating shaft.

[0009] Preferably, an annular groove is provided on the inner wall of the butterfly valve body, and the upper assembly rack and the lower assembly rack are embedded in the groove.

[0010] Preferably, magnetic sealing strips are provided on the outer walls on both sides of the upper assembly rack, and the upper assembly rack is magnetically connected to the side walls of the arc-shaped assembly seat through the magnetic sealing strips.

[0011] Preferably, an upper valve seat is provided above the butterfly valve body, and a lower valve seat is provided below the butterfly valve body. A valve stem is provided between the upper valve seat and the lower valve seat, an operating handle is provided at the upper end of the valve stem, and a valve plate is provided on the outer wall of the valve stem.

[0012] Preferably, flange combination ends are provided on the outer walls of the inlet end and the outlet end.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model provides an arc-shaped assembly groove, so that a filter assembly can be assembled there to perform a filtering operation at the inlet end position of the valve body. The arrangement of the arc-shaped assembly seat can limit the filter assembly therebetween, which is used to limit and reinforce the filter assembly, and can be combined with the arc-shaped sealing plate to improve the sealing at the groove. The arrangement of the plug and the socket can be used to quickly install and remove the filter by means of a snap-in insertion. During the removal of the outer wall cover, no tools are required, and the arc-shaped sealing plate can be moved by breaking the block to separate the plug and the socket, which effectively improves the disassembly and assembly efficiency. There are no extra assembly parts protruding from the outside of the valve body, which is not easy to affect the normal installation and placement of the valve body, nor is it easy to cause damage to the assembly parts, thereby improving the service life.

[0015] 2. The setting of the handle can facilitate users to quickly remove, clean and replace the filter assembly by pulling it upward after removing the arc-shaped sealing plate. When placing it, the handle is rotated to a flat state through the shaft so that it can be stored in the groove to avoid affecting the sealing engagement of the upper arc-shaped sealing plate. When taking it out, the handle is rotated to a vertical state so that it protrudes from the outside of the groove, which is convenient for users to use. The entire disassembly and assembly process does not require the aid of external tools, and the disassembly and assembly are easy to use, which effectively improves the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the butterfly valve body of the present utility model;

[0018] Figure 3 This is a schematic diagram of the assembly slot structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the card slot structure of the present utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the filter assembly of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the arc-shaped sealing plate of the present utility model;

[0022] In the figure: 1. Butterfly valve body; 2. Operating handle; 3. Valve stem; 4. Valve plate; 5. Assembly groove; 6. Arc-shaped assembly seat; 7. Socket; 8. Arc-shaped sealing plate; 9. Insert block; 10. Break block; 11. Filter assembly; 12. Upper assembly bracket; 13. Lower assembly bracket; 14. Metal filter screen cover; 15. Groove; 16. Rotating shaft; 17. Handle; 18. Slot; 19. Flange combination end; 20. Upper valve seat; 21. Lower valve seat; 22. Magnetic sealing strip. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] See also Figure 1-6 The utility model provides an embodiment: a butterfly valve that is easy to remove the filter screen, comprising: a butterfly valve body 1, an inlet end and an outlet end are respectively provided at both ends of the butterfly valve body 1, and a flange combination end 19 is provided on the outer wall of the inlet end and the outlet end, and is connected and combined with other pipelines through the flange combination end 19; an upper valve seat 20 is provided above the butterfly valve body 1, and a lower valve seat 21 is provided below the butterfly valve body 1, and a valve stem 3 is provided between the upper valve seat 20 and the lower valve seat 21, and an operating handle 2 is provided at the upper end of the valve stem 3, and a valve plate 4 is provided on the outer wall of the valve stem 3; the valve stem 3 is driven to rotate by the operating handle 2, so that the valve plate 4 rotates with it and performs an opening and closing operation in the valve body;

[0025] An arc-shaped assembly groove 5 is provided on the outer wall of the butterfly valve body 1 near the inlet end, and an arc-shaped assembly seat 6 is provided on the inner wall on both sides of the assembly groove 5. A sealing member is provided above the arc-shaped assembly seat 6, and the sealing member includes an arc-shaped sealing plate 8. Insert blocks 9 are provided on the inner wall of the arc-shaped sealing plate 8 at an annular interval. A plurality of jacks 7 are provided on the outer wall of the arc-shaped assembly seat 6 at an annular interval. A breaking block 10 is provided at one end of the outer wall of the arc-shaped sealing plate 8, and a filter assembly 11 is provided between the arc-shaped assembly seats 6. Through the setting of the arc-shaped assembly groove 5, the filter assembly 11 can be assembled thereto to perform a filtering operation on the inlet end position of the valve body. The arrangement of the shaped assembly seat 6 can limit the filter assembly part 11 therebetween, and is used to limit and reinforce the filter assembly part 11, and can be combined with the arc-shaped sealing plate 8 to improve the sealing performance at the notch. Through the arrangement of the plug block 9 and the socket 7, the installation and removal operations can be quickly performed in a snap-fit ​​insertion manner. During the removal of the outer wall cover, no tools are required. The arc-shaped sealing plate 8 can be moved by breaking the block 10 to separate the plug block 9 from the socket 7, which effectively improves the disassembly and assembly efficiency. There are no extra assembly parts protruding from the outside of the valve body, which is not easy to affect the normal installation and placement of the valve body, nor is it easy to cause damage to the assembly parts, thereby improving the service life.

[0026] Among them, the filter assembly 11 includes an upper assembly frame 12, a lower assembly frame 13 is provided below the upper assembly frame 12, a metal filter screen cover 14 is provided between the upper assembly frame 12 and the lower assembly frame 13, a groove 15 is provided on the upper surface of the upper assembly frame 12, a rotating shaft 16 is provided on both sides of the groove 15, a handle 17 is provided on the outer wall of the rotating shaft 16, an annular groove 18 is provided on the inner wall of the butterfly valve body 1, and the upper assembly frame 12 and the lower assembly frame 13 are embedded in the groove 18; the upper assembly frame 12 and the lower assembly frame 13 are both arc-shaped structures, and the two form a circular shape for placing the metal filter screen cover 14 of the corresponding shape, which can effectively perform filtering operations in a round tube-shaped device such as a valve body pipe. The setting of the annular groove 18, The upper assembly frame 12 and the lower assembly frame 13 can be effectively matched, so that the card slot 18 can restrict and fix the two assembly frames, thereby improving the stability of the filter installation. Through the setting of the handle 17, it is convenient for the user to quickly take out the filter assembly part 11 for cleaning and replacement by pulling it upward after removing the arc-shaped sealing plate 8. When placing it, the handle 17 is rotated to a lying state through the rotating shaft 16 so that it can be stored and placed in the groove 15, avoiding affecting the sealing engagement of the upper arc-shaped sealing plate 8. When taking it out, the handle 17 is rotated to a vertical state so that it protrudes from the outside of the groove 15, which is convenient for the user to use. The entire disassembly and assembly process does not require the help of external tools, the disassembly and assembly are easy to use, and the disassembly and assembly efficiency is effectively improved.

[0027] Furthermore, magnetic sealing strips 22 are provided on the outer walls on both sides of the upper assembly frame 12, and the upper assembly frame 12 is magnetically connected to the side walls of the arc-shaped assembly seat 6 through the magnetic sealing strips 22; after the upper assembly frame 12 and the lower assembly frame 13 are embedded in the card slot 18, the magnetic sealing strips 22 at the upper assembly frame 12 will be attached to the side walls of the arc-shaped assembly seat 6 on both sides, thereby improving the sealing performance at the opening position of the sealing assembly groove 5 and reducing the risk of leakage. At the same time, it can improve the stability of the filter screen under the impact of medium flow, and the magnetic sealing strips 22 will not affect the normal upward pulling and disassembly and removal process, which is convenient for users to use.

[0028] Working principle: During assembly, insert and lower the filter assembly 11 between the two arc-shaped assembly seats 6 so that the upper assembly frame 12 and the lower assembly frame 13 are embedded in the card slot 18. The upper assembly frame 12 is magnetically fixed between the two arc-shaped assembly seats 6 through the magnetic sealing strip 22. Insert the insert block 9 of the arc-shaped sealing plate 8 into the insertion hole 7 and press downward to seal the arc-shaped sealing plate 8 above the assembly slot 5.

[0029] During disassembly, the arc-shaped sealing plate 8 is moved by breaking the block 10 to separate the plug block 9 from the socket 7, and the arc-shaped sealing plate 8 is removed. The handle 17 is turned to a vertical state and the handle 17 is pulled upward to separate the two assembly frames from the slot 18, thereby moving the entire filter assembly 11 from the inside to the outside of the valve body.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A butterfly valve for facilitating the removal of a filter screen, comprising a butterfly valve body (1), wherein both ends of the butterfly valve body (1) are respectively provided with an inlet end and an outlet end, and characterized in that: The butterfly valve body (1) is provided with an arc-shaped assembly groove (5) on the outer wall near the inlet end, and arc-shaped assembly seats (6) are provided on the inner walls on both sides of the assembly groove (5). A sealing member is provided above the arc-shaped assembly seat (6), and the sealing member includes an arc-shaped sealing plate (8). Insert blocks (9) are provided at annular intervals on the inner wall of the arc-shaped sealing plate (8), and a plurality of insertion holes (7) are provided at annular intervals on the outer wall of the arc-shaped assembly seat (6). A breaking block (10) is provided at one end of the outer wall of the arc-shaped sealing plate (8), and a filter assembly member (11) is provided between the arc-shaped assembly seats (6).

2. A butterfly valve for facilitating removal of a filter screen according to claim 1, characterized in that: The filter screen assembly (11) comprises an upper assembly frame (12), a lower assembly frame (13) is provided below the upper assembly frame (12), and a metal filter screen cover (14) is provided between the upper assembly frame (12) and the lower assembly frame (13).

3. A butterfly valve for facilitating removal of a filter screen according to claim 2, characterized in that: A groove (15) is provided on the upper surface of the upper assembly frame (12), a rotating shaft (16) is provided on both sides of the groove (15), and a handle (17) is provided on the outer wall of the rotating shaft (16).

4. The butterfly valve for facilitating removal of the filter screen according to claim 2, characterized in that: An annular clamping groove (18) is provided on the inner wall of the butterfly valve body (1), and the upper assembly frame (12) and the lower assembly frame (13) are embedded in the clamping groove (18).

5. The butterfly valve for facilitating removal of the filter screen according to claim 2, characterized in that: Magnetic sealing strips (22) are provided on the outer walls of both sides of the upper assembly frame (12), and the upper assembly frame (12) is magnetically connected to the side walls of the arc-shaped assembly seat (6) through the magnetic sealing strips (22).

6. The butterfly valve for facilitating removal of the filter screen according to claim 1, characterized in that: An upper valve seat (20) is provided above the butterfly valve body (1), and a lower valve seat (21) is provided below the butterfly valve body (1). A valve stem (3) is provided between the upper valve seat (20) and the lower valve seat (21), an operating handle (2) is provided at the upper end of the valve stem (3), and a valve plate (4) is provided on the outer wall of the valve stem (3).

7. The butterfly valve for facilitating removal of the filter screen according to claim 1, characterized in that: Flange combination ends (19) are provided on the outer walls of the inlet end and the outlet end.

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