Multifunctional valve body structure

Abstract

The utility model provides a multifunctional valve body structure which comprises a spherical valve body, a valve rod and an O-shaped ball valve element, a valve cavity flow channel and a valve rod installation channel are formed in the spherical valve body, the valve rod installation channel is communicated with the middle of the valve cavity flow channel, the O-shaped ball valve element is located in the middle of the valve cavity flow channel, and a ball valve positioning seat is arranged at the bottom end of the O-shaped ball valve element. A positioning bolt is arranged at the bottom end of the ball valve positioning seat, the bottom end of the positioning bolt penetrates through the valve cavity flow channel and is in bonding connection with a sealing bearing, and the sealing bearing is embedded in the spherical valve body; the ball valve positioning seat is arranged at the bottom end of the O-shaped ball valve element, the ball valve positioning seat penetrates through the valve cavity flow channel through the positioning plug pin and is connected with the sealing bearing in a bonding mode, and the sealing bearing is embedded in the spherical valve body, so that the O-shaped ball valve element has good rotation precision in the rotating process in the valve cavity flow channel. The central axis of the O-shaped ball valve element and the central axis of the valve rod do not deviate, and the sealing performance of opening and closing of a pipeline is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve bodies and relates to a multifunctional valve body structure. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, with functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion, or overflow pressure relief. They are valves used in fluid control systems; prior art, such as the combined multifunctional valve body disclosed in patent publication number CN215928473U, belongs to the field of valve body technology. Filter devices are installed at both ends of the inner wall of the combined multifunctional valve body to filter large particles of media in the water, prevent impurities from colliding with the valve ball or impurities from adhering to the valve ball, and increase the service life of the valve body.

[0003] However, the above-mentioned valve body has the following disadvantages: since the valve body is specifically a ball valve type, the ball valve core inside it will deviate from the central axis of the valve stem during the rotation inside the valve cavity, thereby affecting the sealing performance of the pipeline opening and closing. For this reason, we have designed a multifunctional valve body structure. Summary of the Invention

[0004] The purpose of the present utility model is to provide a multifunctional valve body structure to solve the problems raised in the above background technology.

[0005] The objectives of the present utility model can be achieved through the following technical solutions: a multifunctional valve body structure, comprising a spherical valve body, a valve stem and an O-type ball valve core, the interior of the spherical valve body being provided with a valve cavity flow channel and a valve stem mounting channel, the valve stem mounting channel being connected to the middle part of the valve cavity flow channel, the O-type ball valve core being located in the middle part of the valve cavity flow channel, the top end of the spherical valve body being provided with a valve stem fixing seat, the valve stem being installed inside the valve stem fixing seat and being able to rotate relative to the valve stem fixing seat, one end of the valve stem passing through the valve stem mounting channel being connected to the top end of the O-type ball valve core, a front end flange welded to the spherical valve body being provided at the inlet of the valve cavity flow channel, and a tail end flange welded to the spherical valve body being provided at the outlet of the valve cavity flow channel.

[0006] The bottom end of the O-type ball valve core is provided with a ball valve positioning seat, and the bottom end of the ball valve positioning seat is provided with a positioning pin. The bottom end of the positioning pin passes through the valve cavity flow channel and is keyed to a sealing bearing. The sealing bearing is embedded in the interior of the spherical valve body.

[0007] Two symmetrical sealing rings are installed inside the valve cavity flow channel. The two sealing rings are located at both ends of the O-type ball valve core and do not block the flow channel of the O-type ball valve core. Sealing filler blocks are set between the valve stem and the valve stem installation channel and the valve cavity flow channel.

[0008] In the aforementioned multifunctional valve body structure, a hollow snap-fit ​​mesh is installed within the inlet of the valve cavity flow channel, with a filter mesh sleeve snapped onto one end of the mesh. This arrangement allows the mesh to be used to mount the filter mesh sleeve, which filters large particles in the water and prevents impurities from adhering to the O-type ball valve core.

[0009] In the aforementioned multifunctional valve body structure, a limit rod is installed inside the filter housing. A plug-in connector is mounted on one end of the limit rod, which engages with the inner sidewall of the front flange. This arrangement facilitates quick and easy removal of the filter housing, facilitates cleaning of the filter housing, reduces the amount of large particles in the filter housing, and ensures subsequent filtration effectiveness.

[0010] In the multifunctional valve body structure described above, a stopper is mounted on one end of the front flange, a circular valve disc capable of sealing the stopper's cavity is mounted inside the stopper, and the top of the circular valve disc is connected to a handle located at the top of the stopper via a rotating shaft. A neck flange is mounted on one end of the stopper, the neck portion of which wraps around the stopper and contacts the front flange. This arrangement facilitates the sealing of the inlet portion of the spherical valve body, facilitates opening the inlet of the front flange, and facilitates the removal of the filter screen using a limiting connecting rod. Furthermore, this arrangement prevents water leakage after the neck flange is separated from the front flange, thereby ensuring good sealing.

[0011] In the aforementioned multifunctional valve structure, the other end of the valve stem protrudes from the valve stem mounting seat and is mounted with an opening adjustment handle. A valve status indicator light is mounted on the top of the opening adjustment handle. This arrangement facilitates adjustment of the opening of the O-type ball valve core via the opening adjustment handle, thereby varying the water flow rate. Furthermore, the valve status indicator light provides better indication, making it easier to intuitively understand the valve opening status.

[0012] Compared with the prior art, the advantages of the multifunctional valve body structure of the present invention are as follows: by arranging a ball valve positioning seat at the bottom end of the O-type ball valve core, the ball valve positioning seat passes through the valve cavity flow channel through a positioning pin and is keyed to a sealing bearing, and the sealing bearing is embedded in the interior of the spherical valve body, so that the O-type ball valve core has good rotation accuracy during the rotation process inside the valve cavity flow channel, so that the center axis of the O-type ball valve core and the valve stem do not deviate, thereby ensuring the sealing of the pipeline opening and closing;

[0013] A hollow snap-fit ​​mesh is installed inside the inlet of the valve cavity flow channel. One end of the mesh is engaged with the filter sleeve, which is then engaged with the inner wall of the front flange via the plug-in connector of the limit link. Using the hollow snap-fit ​​mesh to install the filter sleeve, the filter sleeve filters large particles in the water, preventing impurities from adhering to the O-type ball valve core. The filter sleeve is also easy to remove and clean, reducing the amount of large particles in the filter sleeve and ensuring subsequent filtration effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of a multifunctional valve body structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of a spherical valve body with a multifunctional valve body structure of the utility model.

[0016] Figure 3 This is a schematic diagram of a multifunctional valve body structure with a hollowed-out clip-on net and a filter sleeve separated structure.

[0017] Figure 4 It is a structural schematic diagram of a flow-stop cylinder with a multifunctional valve body structure of the utility model.

[0018] In the figure, 1. spherical valve body; 2. front end flange; 3. rear end flange; 4. valve stem fixing seat; 5. valve stem; 6. opening adjustment handle; 7. valve body status indicator light; 8. valve cavity flow channel; 9. valve stem installation channel; 10. O-type ball valve core; 11. ball valve positioning seat; 12. positioning pin; 13. sealing bearing; 14. sealing ring; 15. sealing packing block; 16. hollow card-connecting net; 17. filter screen sleeve; 18. limit connecting rod; 19. neck flange; 20. flow-stop cylinder; 21. round valve disc; 22. handle; 23. plug-in clamp. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model is a multifunctional valve body structure;

[0021] The valve body includes a spherical valve body 1, a valve stem 5 and an O-type ball valve core 10. The interior of the spherical valve body 1 is provided with a valve cavity flow channel 8 and a valve stem mounting channel 9. The valve stem mounting channel 9 is communicated with the middle part of the valve cavity flow channel 8. The O-type ball valve core 10 is located in the middle part of the valve cavity flow channel 8. The top of the spherical valve body 1 is provided with a valve stem fixing seat 4. The valve stem 5 is installed inside the valve stem fixing seat 4 and can rotate relative to the valve stem fixing seat 4. One end of the valve stem 5 passes through the valve stem mounting channel 9 and is connected to the top of the O-type ball valve core 10. A front end flange 2 welded to the spherical valve body 1 is provided at the inlet of the valve cavity flow channel 8, and a tail end flange 3 welded to the spherical valve body 1 is provided at the outlet of the valve cavity flow channel 8.

[0022] Furthermore, in order to ensure the sealing of the valve body, sealing structures are set at two locations, and two symmetrical sealing rings 14 are installed inside the valve cavity flow channel 8. The two sealing rings 14 are located at both ends of the O-type ball valve core 10 and do not block the flow channel of the O-type ball valve core 10. Sealing filler blocks 15 are set between the valve stem 5 and the valve stem mounting channel 9 and the valve cavity flow channel 8.

[0023] Furthermore, in order to facilitate the adjustment of the opening of the O-type ball valve core 10 (a flow channel is provided on the O-type ball valve core 10, and by rotating the O-type ball valve core 10, the flow channel is completely overlapped with the valve cavity flow channel 8, that is, the maximum opening is reached), the other end of the valve stem 5 protrudes from the valve stem fixing seat 4 and is equipped with an opening adjustment handle 6, and the top of the opening adjustment handle 6 is equipped with a valve body status indicator light 7.

[0024] Among them, the valve body status indicator light 7 has its own battery, and can adjust the rotation angle of the handle 6 according to the opening to achieve the change of the internal resistance of the valve body status indicator light 7, thereby achieving the change of brightness.

[0025] Embodiment 1: In order to ensure that the O-type ball valve core 10 has good rotation accuracy during the rotation adjustment process and avoid axial deviation, a ball valve positioning seat 11 is provided at the bottom end of the O-type ball valve core 10, and a positioning pin 12 is provided at the bottom end of the ball valve positioning seat 11. The bottom end of the positioning pin 12 passes through the valve cavity flow channel 8 and is bonded to a sealing bearing 13. The sealing bearing 13 is embedded in the interior of the spherical valve body 1.

[0026] Embodiment 2: In order to better filter out large particles in the water and reduce the adhesion of impurities to the valve cavity flow channel 8 or the O-type ball valve core 10, a hollow snap-fit ​​net 16 is installed inside the inlet of the valve cavity flow channel 8, and a filter mesh sleeve 17 is snap-fitted to one end of the hollow snap-fit ​​net 16; a limiting connecting rod 18 is installed inside the filter mesh sleeve 17, and a plug-in clamp 23 is installed at one end of the limiting connecting rod 18, and the plug-in clamp 23 is snap-fitted to the inner side wall of the front end flange 2.

[0027] Example 3: A stopper cylinder 20 is mounted on one end of the front flange 2. A circular valve flap 21 is mounted inside the stopper cylinder 20 to seal the cylinder cavity of the stopper cylinder 20. The top end of the circular valve flap 21 is connected to a handle 22 located at the top of the stopper cylinder 20 via a rotating shaft. A neck flange 19 is mounted on one end of the stopper cylinder 20. The neck portion of the neck flange 19 wraps around the stopper cylinder 20 and contacts the front flange 2.

[0028] Wherein: the handle member 22 is connected to the strip-shaped opening at the top of the neck flange 19 .

[0029] The design significance of the third embodiment is based on the second embodiment. The inlet part of the spherical valve body 1 is blocked to facilitate opening the inlet of the front flange 2, and the filter sleeve 17 is disassembled by the limiting link 18. At the same time, the neck flange 19 is separated from the front flange 2 to avoid water leakage and ensure good sealing.

[0030] Usage: The spherical valve body 1 is connected to the neck flange 19 through the front flange 2. The neck flange 19 and the tail flange 3 are used to install the spherical valve body 1 into the pipeline to realize the opening and closing of the pipeline and flow control. The spherical valve body 1 has the functions of filtering, flow regulation and flow stopping, and is convenient for a wide range of applications.

[0031] Matters not described in detail in this specification constitute prior art known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art to which the present invention relates may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A multifunctional valve body structure, comprising a spherical valve body (1), a valve stem (5) and an O-type ball valve core (10), wherein a valve cavity flow channel (8) and a valve stem mounting channel (9) are provided inside the spherical valve body (1), wherein the valve stem mounting channel (9) is communicated with the middle of the valve cavity flow channel (8), and the O-type ball valve core (10) is located in the middle of the valve cavity flow channel (8), a valve stem fixing seat (4) is installed at the top end of the spherical valve body (1), the valve stem (5) is installed inside the valve stem fixing seat (4) and can rotate relative to the valve stem fixing seat (4), one end of the valve stem (5) passes through the valve stem mounting channel (9) and is connected to the top end of the O-type ball valve core (10), a front end flange (2) welded to the spherical valve body (1) is provided at the inlet of the valve cavity flow channel (8), and a tail end flange (3) welded to the spherical valve body (1) is provided at the outlet of the valve cavity flow channel (8), characterized in that: The bottom end of the O-type ball valve core (10) is provided with a ball valve positioning seat (11), the bottom end of the ball valve positioning seat (11) is provided with a positioning pin (12), the bottom end of the positioning pin (12) passes through the valve cavity flow channel (8) and is bonded to a sealing bearing (13), and the sealing bearing (13) is embedded in the interior of the spherical valve body (1); Two symmetrical sealing rings (14) are installed inside the valve cavity flow channel (8). The two sealing rings (14) are located at both ends of the O-type ball valve core (10) and do not block the flow channel of the O-type ball valve core (10). Sealing packing blocks (15) are provided at the valve stem (5), the valve stem installation channel (9) and the valve cavity flow channel (8).

2. A multifunctional valve body structure according to claim 1, characterized in that: A hollow snap-fit ​​net (16) is installed inside the inlet of the valve cavity flow channel (8), and a filter net sleeve (17) is snap-fitted to one end of the hollow snap-fit ​​net (16).

3. A multifunctional valve body structure according to claim 2, characterized in that: A limit connecting rod (18) is installed inside the filter mesh sleeve (17), and a plug-in clamp (23) is installed at one end of the limit connecting rod (18). The plug-in clamp (23) is clamped to the inner side wall of the front flange (2).

4. A multifunctional valve body structure according to claim 1, characterized in that: A flow-stop cylinder (20) is installed at one end of the front flange (2), and a circular valve flap (21) capable of sealing the cylinder cavity of the flow-stop cylinder (20) is installed inside the flow-stop cylinder (20), and the top end of the circular valve flap (21) is connected to a handle (22) located at the top of the flow-stop cylinder (20) via a rotating shaft.

5. A multifunctional valve body structure according to claim 4, characterized in that: A neck flange (19) is installed at one end of the flow-stopping cylinder (20), and the neck portion of the neck flange (19) wraps around the flow-stopping cylinder (20) and contacts the front flange component (2).

6. The multifunctional valve body structure according to claim 1, characterized in that: The other end of the valve stem (5) protrudes from the valve stem fixing seat (4) and is installed with an opening adjustment handle (6), and the top end of the opening adjustment handle (6) is installed with a valve body status indicator light (7).

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