Loose joint ball valve of stainless steel filter

Abstract

The utility model relates to the technical field of loose joint ball valves, and discloses a stainless steel filter loose joint ball valve which comprises a valve body, an anti-falling assembly and a ball valve assembly, the anti-falling assembly comprises a connector, a plurality of fastening grooves are formed in the inner wall of the connector in an annular array mode, and a plurality of extrusion grooves are formed in the outer attaching face of the connector in an annular array mode. First sliding grooves are formed in the two sides of the interior of the extrusion groove, an extrusion block is movably installed in the extrusion groove, a fastening block is movably installed in the fastening groove, the inner ends of the extrusion block and the fastening block sliding grooves are arranged to be inclined faces, and the inclined faces of the extrusion block and the fastening block are attached to each other. And after the loose joint lock cap is rotationally fixed, the inner wall of the loose joint lock cap pushes the extrusion block, and the extrusion block pushes the fastening block to move through the inclined surface, so that the fastening block fixes and clamps the pipeline for the second time, and connection looseness caused by water flow vibration after the pipeline is used for a long time is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of live-joint ball valves, in particular to a live-joint ball valve for a stainless steel filter. Background Art

[0002] Ball valve, the opening and closing part (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. The multi-way ball valve can not only flexibly control the confluence, diversion and flow direction switching of the medium on the pipeline, but also close any channel and connect the other two channels. This type of valve should generally be installed horizontally in the pipeline. Ball valves are divided into pneumatic ball valves, electric ball valves, and manual ball valves according to the driving method. Double union ball valve is a type of valve, with ppr material at both ends and a copper ball valve in the middle.

[0003] For example, the Chinese patent "CN219317670U" discloses a double live-joint ball valve, which proposes: a valve cover is installed on the outer wall of the valve seat, a valve core is provided inside the valve seat, a first sealing retaining ring is provided inside the valve seat on one side of the valve core, a second sealing retaining ring is provided inside the valve cover on the other side of the valve core, a support is installed at the top of the valve seat, a driving shaft is provided at the top of the valve core, and the top of the driving shaft extends to the outside of the support, a transmission block is provided at the top of the driving shaft, a handle is fixed at the top of the transmission block, and a first through hole is provided inside the transmission block. Not only does it realize the convenient live connection of the double live-joint ball valve, but it also adopts a movable and detachable connection, which facilitates the convenient disassembly and replacement of the double live-joint ball valve after damage, and prevents the double live-joint ball valve from being opened or closed by mistake.

[0004] It can be seen from the above-mentioned device that although the above-mentioned device provides a double live-joint ball valve that is easy to disassemble, the applicant believes that the following defects still exist:

[0005] When water flows under high pressure for a long time, the tightness of the existing loose-joint ball valve on the pipeline will continue to decrease, resulting in loose pipeline fixation, water leakage and pipeline falling off. In addition, when the loose-joint ball valve is used for a long time and the handle is repeatedly moved to adjust the ball core, the ball core will shift and cannot be accurately connected and sealed with the connecting port of the valve body, resulting in reduced sealing performance and water leakage, which in turn causes the ball valve to have a short service life. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a stainless steel filter live-joint ball valve, which is equipped with a plurality of fastening blocks for secondary fixing of the pipeline to prevent the pipeline from loosening or falling off during long-term use, and limits the position of the ball core by a limit clamp, thereby achieving the advantages of extending the service life and effectively preventing leakage, and solves the problem that the fastening of the live-joint ball valve to the pipeline will continue to decrease under the condition of long-term high-pressure flow of water, resulting in loose pipeline fixation, water leakage and pipeline falling off, and the problem that the live-joint ball valve repeatedly moves the handle to adjust the ball core during long-term use, and the position of the ball core is offset and cannot be accurately connected and sealed with the connecting port of the valve body, resulting in reduced sealing performance and water leakage, thereby causing the service life of the ball valve to be short.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stainless steel filter flexible ball valve, comprising a valve body, an anti-falling component, and a ball valve component, the anti-falling component comprising a connecting head, a plurality of fastening grooves are provided in an annular array on the inner wall of the connecting head, a plurality of extrusion grooves are provided in an annular array on the outer fitting surface of the connecting head, a first slide groove is provided on both sides of the extrusion groove, an extrusion block is movably installed inside the extrusion groove, a first slider is fixedly installed on both sides of the extrusion block, and the first slider is movably installed inside the first slide groove.

[0010] Preferably, a fastening block is movably installed inside the fastening groove, second sliding blocks are fixedly installed on both sides of the fastening block, second sliding grooves are opened on both sides of the fastening groove, and the second sliding block is movably installed inside the second sliding grooves.

[0011] Preferably, the inner ends of the sliding grooves of the extrusion block and the fastening block are both arranged as inclined surfaces, and the inclined surfaces of the extrusion block and the fastening block fit each other.

[0012] Preferably, a support spring is fixedly connected below the second sliding block, and the support spring is fixedly connected inside the second sliding groove.

[0013] Preferably, a maintenance pressure cap is provided on the outer wall of the valve body, mounting seats are provided on both sides of the valve body, threads are provided on the outer wall of the mounting seat, and a sealing gasket is provided inside the mounting seat.

[0014] Preferably, a connector is provided on the outer wall of the sealing gasket, a movable lock cap is movably mounted on the outer wall of the connector, and the movable lock cap is mounted on the mounting seat through inner wall thread engagement.

[0015] Preferably, the ball valve assembly includes a valve stem, the valve stem is movably mounted inside a maintenance pressure cap, the outer wall of the valve stem is movably mounted on a connecting base, and a limited position holder is fixedly connected below the connecting base.

[0016] Preferably, an arc-shaped concave surface is arranged below the limit holder, a ball core is mounted on the limit holder through engagement with the arc-shaped concave surface below, limit holders are arranged at both upper and lower ends of the outer wall of the ball core, and sealing rings are arranged on the outer walls on both sides of the connecting port of the ball core.

[0017] Preferably, a locking nut is provided at the upper end of the outer wall of the valve stem, and a handle is provided between the locking nut and the maintenance pressure cap.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides a stainless steel filter live-joint ball valve, which has the following beneficial effects:

[0020] 1. The stainless steel filter loose-joint ball valve is provided with an anti-dropping component, so that after the loose-joint lock cap is rotated and fixed, the inner wall of the loose-joint lock cap pushes the extrusion block, and the extrusion block pushes the fastening block to move through the inclined surface, so that the fastening block performs secondary fixing and clamping on the pipeline, preventing the pipeline from being loosened due to water flow vibration during long-term use, and can adapt and clamp pipelines with slightly smaller diameters that may cause errors during pipeline production.

[0021] 2. The stainless steel filter loose-joint ball valve sets a limit seat to limit the position of the ball core, preventing the ball core from shifting, ensuring that the ball core and the connecting port of the valve body are accurately docked and sealed, thereby improving the sealing performance and reducing the possibility of water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the anti-falling component of the utility model;

[0025] Figure 4 This is a schematic diagram of the partial structure of the cross-section of the connector of the utility model;

[0026] Figure 5 For this utility model Figure 4 Installation completed structural diagram;

[0027] Figure 6 This is a schematic diagram of the structure of the ball valve assembly of the utility model.

[0028] The numbers in the figure are:

[0029] 1. Valve body; 11. Joint lock cap; 12. Maintenance pressure cap; 13. Sealing gasket; 14. Mounting seat; 2. Anti-drop assembly; 21. Connector; 22. Fastening groove; 23. Extrusion groove; 24. Extrusion block; 25. First slider; 26. First slide groove; 27. Fastening block; 28. Second slider; 29. ​​Second slide groove; 210. Support spring; 3. Ball valve assembly; 31. Valve stem; 32. Loose nut; 33. Handle; 34. Ball core; 35. Limiting seat; 36. Connecting base; 37. Sealing ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-5, a stainless steel filter joint ball valve comprises a valve body 1, an anti-dropping component 2 and a ball valve component 3. A maintenance pressure cap 12 is arranged on the outer wall of the valve body 1, mounting seats 14 are arranged on both sides of the valve body 1, and threads are arranged on the outer wall of the mounting seat 14. A sealing gasket 13 is arranged inside the mounting seat 14. The sealing gasket 13 is installed inside the mounting seat 14, mainly used to ensure that the valve can fit tightly when closed to prevent medium leakage. The anti-dropping component 2 comprises a connector 21, a plurality of fastening grooves 22 are arranged in an annular array on the inner wall of the connector 21, a plurality of extrusion grooves 23 are arranged in an annular array on the outer fitting surface of the connector 21, first slide grooves 26 are arranged on both sides of the extrusion groove 23, and extrusion blocks 24 are movably installed inside the extrusion groove 23. When these blocks are subjected to external force, they will move along the extrusion groove 23, thereby realizing a close fit between the connector 21 and other components, and first sliders 25 are fixedly installed on both sides of the extrusion block 24, and the first slider 25 is movably installed The second slider 28 is fixedly mounted on both sides of the fastening block 27, and a second slider 28 is fixedly mounted on both sides of the fastening block 27. A second slider 29 is provided on both sides of the fastening groove 22, and the second slider 28 is movably mounted on the second slider 29. The inner ends of the sliders of the extrusion block 24 and the fastening block 27 are arranged as inclined surfaces, and the inclined surfaces of the extrusion block 24 and the fastening block 27 fit each other. This design enables the extrusion block 24 and the fastening block 27 to transmit force more effectively and enhance the stability of the connection when subjected to external force. A support spring 210 is fixedly connected to the bottom of the second slider 28, and the support spring 210 is fixedly connected to the inside of the second slider 29. A connector 21 is provided on the outer wall of the sealing gasket 13, and a movable lock cap 11 is movably mounted on the outer wall of the connector 21. The movable lock cap 11 is mounted on the mounting seat 14 through inner wall thread engagement. The movable lock cap 11 is a component that can be mounted on the mounting seat 14 through inner wall thread engagement. Its function is to further lock and fix the connection between the connecting head 21 and the mounting seat 14 .

[0032] See also Figure 6 A loosening nut 32 is provided at the upper end of the outer wall of the valve stem 31, and a handle 33 is provided between the anti-loosening nut 32 and the maintenance pressure cap 12. The ball valve assembly 3 includes a valve stem 31, and the valve stem 31 is movably installed inside the maintenance pressure cap 12. The outer wall of the valve stem 31 is movably installed due to the connecting base 36, and a limited position holder 35 is fixedly connected below the connecting base 36. The lower part of the limiting holder 35 is set as an arc-shaped concave surface, which is mainly used to limit the position and rotation range of the ball core 34. The limiting holder 35 is engaged with the arc-shaped concave surface below and is installed with the ball core 34. The upper and lower ends of the outer wall of the ball core 34 are provided with limited position holders 35, and the outer walls on both sides of the connecting port opened by the ball core 34 are provided with sealing rings 37.

[0033] Working principle: When the pipelines on both sides of the live joint ball valve are butt-jointed, the pipelines are meshed and installed with the connector 21 through threads. After the connection is completed, the live joint is placed on the outside of the sealing gasket 13, and then the live joint lock cap 11 is rotated and tightened to the outside of the mounting seat 14. When the live joint lock cap 11 is tightened, the inner wall of the live joint lock cap 11 squeezes the extrusion block 24 inward. When the extrusion block 24 is squeezed, the first sliders 25 on both sides move within the first slide groove 26. When moving, the inclined edge of the extrusion block 24 pushes the inclined edge of the fastening block 27. After the inclined edge of the fastening block 27 is pushed, the second slider 28 squeezes the supporting spring 210 downward. The second slider 28 drives the fastening block 27 to move downward within the second slide groove 29. When the fastening block 27 moves downward, it extends from the fastening groove 22. The outer wall of the fastening block 27 clamps and fixes the pipeline, making the pipeline installation more secure and preventing the pipeline from loosening and falling off during long-term use.

[0034] Secondly, when opening or closing the ball valve, it is only necessary to turn the handle 33, which drives the valve stem 31 to rotate, and the valve stem 31 drives the ball core 34 to rotate. When the ball core 34 rotates to control the closure, the arc-shaped concave surface of the limit clamp 35 fits the spherical surfaces at the upper and lower ends of the ball core 34. The limit clamp 35 limits the position and rotation range of the ball core 34, so that the ball core 34 will not deviate during long-term use to avoid leakage, thereby improving the sealing performance and service life of the valve. In addition, during the production process of the valve, various factors may cause a certain error in the diameter of the pipeline, and this new type of live-joint ball valve can adapt and clamp the pipeline with a slightly smaller diameter through the push of the fastening block 22, ensuring the versatility and applicability of the valve.

[0035] In terms of maintenance and care, the user can loosen the nut 32 by rotating it, disassemble the valve stem 31 and the ball core 34, and clean and replace the sealing ring 37 and other parts, which is very convenient. This design ensures that the live-joint ball valve has high maintainability and reliability while ensuring sealing performance and service life.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stainless steel filter joint ball valve, comprising a valve body (1), an anti-drop assembly (2), and a ball valve assembly (3), characterized in that: The anti-falling component (2) comprises a connecting head (21), the inner wall of the connecting head (21) is provided with a plurality of fastening grooves (22) in an annular array, the outer fitting surface of the connecting head (21) is provided with a plurality of extrusion grooves (23) in an annular array, the extrusion groove (23) is provided with first slide grooves (26) on both sides thereof, an extrusion block (24) is movably installed inside the extrusion groove (23), first slide blocks (25) are fixedly installed on both sides of the extrusion block (24), and the first slide block (25) is movably installed inside the first slide groove (26).

2. The stainless steel filter loose-joint ball valve according to claim 1, characterized in that: A fastening block (27) is movably installed inside the fastening groove (22), and second sliding blocks (28) are fixedly installed on both sides of the fastening block (27). Second sliding grooves (29) are opened on both sides of the fastening groove (22), and the second sliding block (28) is movably installed inside the second sliding grooves (29).

3. The stainless steel filter loose-joint ball valve according to claim 2, characterized in that: The inner ends of the slide grooves of the extrusion block (24) and the fastening block (27) are both arranged as inclined surfaces, and the inclined surfaces of the extrusion block (24) and the fastening block (27) fit each other.

4. The stainless steel filter loose-joint ball valve according to claim 3, characterized in that: A support spring (210) is fixedly connected below the second sliding block (28), and the support spring (210) is fixedly connected inside the second sliding groove (29).

5. The stainless steel filter loose-joint ball valve according to claim 1, characterized in that: The outer wall of the valve body (1) is provided with a maintenance pressure cap (12), and mounting seats (14) are provided on both sides of the valve body (1). The outer wall of the mounting seat (14) is provided with threads, and a sealing gasket (13) is provided inside the mounting seat (14).

6. The stainless steel filter loose-joint ball valve according to claim 5, characterized in that: The outer wall of the sealing gasket (13) is provided with a connector (21), and a movable lock cap (11) is movably mounted on the outer wall of the connector (21), and the movable lock cap (11) is mounted on the mounting seat (14) through inner wall thread engagement.

7. The stainless steel filter loose-joint ball valve according to claim 5, characterized in that: The ball valve assembly (3) comprises a valve stem (31), wherein the valve stem (31) is movably mounted inside a maintenance pressure cap (12), and the outer wall of the valve stem (31) is movably mounted on a connecting base (36), and a limiting clamping seat (35) is fixedly connected below the connecting base (36).

8. The stainless steel filter loose-joint ball valve according to claim 7, characterized in that: An arc-shaped concave surface is arranged below the limit clamping seat (35), and a ball core (34) is mounted on the limit clamping seat (35) through the meshing of the arc-shaped concave surface below. The limit clamping seats (35) are arranged at both upper and lower ends of the outer wall of the ball core (34), and sealing rings (37) are arranged on both sides of the outer wall of the communication port opened by the ball core (34).

9. The stainless steel filter loose-joint ball valve according to claim 8, characterized in that: A locking nut (32) is arranged at the upper end of the outer wall of the valve stem (31), and a handle (33) is arranged between the locking nut (32) and the maintenance pressure cap (12).

Images