Multi-way ball valve

Abstract

The utility model discloses a multi-way ball valve. A valve shaft hole and a plurality of passage runners are arranged on a valve body; the valve cover comprises a sealing cover for sealing the passage flow channel; the neck bush is used for being cushioned between the inner wall of the valve body and a ball core of the valve body; the valve rod is used for driving the ball core to rotate relative to the valve body to switch a passage runner; the limiting seat is used for limiting the rotation angle of the driving unit of the valve rod to control the rotation angle of the ball core; according to the ball valve, the structure of the valve body is improved, the valve cover is arranged in a matched mode according to the requirement for working conditions, the ball valve can be arranged between a tee joint and a common ball valve, and due to the arrangement of the drainage port, when the ball core rotates to be in the valve closing state in the using process of the ball valve, the valve core can be closed, and the valve cover is closed. When the valve is opened, media retained in the valve can be discharged when the drainage port is opened, and the problems that the media are retained in the ball core after the valve is closed and deteriorate, so that germs are bred, and the germs are mixed into new media after the valve is opened next time are solved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically to a multi-way ball valve. Background Technology

[0002] Standard ball valves achieve rapid opening and closing of single-way pipelines by rotating the valve stem to seal the perforated ball core within the valve body passage. When closed, the fluid passage of the perforated ball core forms a closed area, where the retained medium, such as water, can easily breed harmful bacteria, endangering the health of water users. Furthermore, the threaded joint between the valve body and the valve cover is easily damaged by impacts and vibrations from the connected pipeline. Additionally, existing ball valves only meet the rapid opening and closing function of single-way pipelines. For selective opening and closing control of three-way pipelines, three ball valves are required, one on each side of the three-way pipe, which is both wasteful and inconvenient. Therefore, existing ball valves suffer from structural problems and shortcomings, including susceptibility to leakage, damage, contamination, bacterial retention, and limited application control functions. Utility Model Content

[0003] In view of the existing technology, the purpose of this utility model is to provide a ball valve structure with more functional control design. By selecting and replacing the ball core and valve body sealing structure, multiple application control effects can be achieved to meet more working conditions.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-way ball valve, including a valve body, wherein the valve body is provided with a valve shaft hole and several flow channels;

[0005] Valve cover, the valve cover includes a sealing cover for closing the passage flow channel;

[0006] Inner liner, which has a notch for the flow passage, is used to pad between the inner wall of the valve body and the ball core of the valve body;

[0007] The valve stem extends into the valve body through the valve shaft hole and connects to the ball core, which is used to drive the ball core to rotate relative to the valve body to switch the flow path.

[0008] A limiting seat, located on the valve body, is used to limit the rotation angle of the valve stem drive unit and control the rotation angle of the ball core.

[0009] As a further feature of the above scheme, the ball core is provided with a number of flow ports corresponding to the passage flow channel of the valve body. The flow ports include a flow port of the same size as the passage flow channel and a drain port for discharging the medium retained by the valve when closed. The drain port is eccentrically positioned relative to the valve stem.

[0010] As a further feature of the above scheme, the limiting seat is provided with a plurality of limiting holes and limiting posts, and the limiting seat is also provided with a locking pin in the radial direction. The locking pin is used to radially insert the limiting post to restrict its extension and retraction relative to the limiting seat.

[0011] As a further feature of the above scheme, the sealing cover is provided with a flange cover and a sealing cover. The flange cover is provided with a flow passage, and the sealing cover is used to close the flow passage of the valve body.

[0012] As a further provision of the above solution, a sealing bushing and a plugging sleeve are also included. The sealing bushing is disposed relative to each of the passage channels of the valve body, and the plugging sleeve is used to cooperate with the sealing cap to close the passage channels.

[0013] Beneficial effects: The ball valve of this utility model, through structural improvements to the valve body and the setting of the valve cover, can be configured to meet the needs of the working conditions, allowing it to be configured between a three-way valve and a regular ball valve. Furthermore, through the setting of the drain port, during the use of this embodiment, when the ball core rotates to the closed state, the drain port opens to discharge the medium retained inside, avoiding the problem of the medium remaining in the ball core after the valve is closed and deteriorating, thereby causing the growth of bacteria and mixing into the new medium when the valve is opened again. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the ball valve of this utility model.

[0015] Figure 2 This is a schematic diagram of the valve body structure of this utility model.

[0016] Figure 3 This is a schematic diagram of three configuration forms of the sphere core of this utility model.

[0017] Figure 4 This is a schematic diagram of the ball valve part of this utility model.

[0018] Figure 5 This is a schematic diagram of the limiting seat structure of this utility model.

[0019] Reference numerals: 1. Valve body; 11. Valve shaft hole; 12. Passage channel; 13. Sealing cover; 14. Flange cover; 141. Passage outlet; 15. Sealing cover; 2. Valve cover; 3. Inner bushing; 31. Notch; 4. Ball core; 41. Passage outlet; 42. Flow port; 43. Drain port; 5. Valve stem; 6. Limit seat; 61. Limit post; 62. Limit hole; 63. Locking pin; 7. Drive unit; 8. Sealing bushing; 9. Plug. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0021] like Figure 1-5 The multi-way ball valve shown includes a valve body 1, on which a valve shaft hole 11 and several flow channels 12 are provided;

[0022] Valve cover 2, the valve cover 2 includes a sealing cover 13 for closing the passage flow channel 12;

[0023] Inner liner 3, the inner liner 3 is provided with a notch 31 for the passage flow channel 12, for padding between the inner wall of the valve body 1 and the ball core 4 of the valve body 1;

[0024] Valve stem 5 extends into valve body 1 through valve shaft hole 11 and connects to ball core 4, used to drive ball core 4 to rotate relative to valve body 1 to switch passage flow channel 12;

[0025] The limiting seat 6 is located on the valve body 1 and is used to limit the rotation angle of the drive unit 7 of the valve stem 5 and control the rotation angle of the ball core 4.

[0026] As described above in this utility model, the ball core 4 is provided with a plurality of flow channels 41 corresponding to the passage flow channel 12 of the valve body 1. The flow channels 41 include a flow port 42 of the same size as the passage flow channel 12 and a drain port 43 for discharging the medium retained by the valve. The drain port 43 is eccentrically arranged relative to the valve stem 5.

[0027] As a further provision of the above scheme, the limiting seat 6 is provided with a plurality of limiting holes 62 and limiting posts 61, and the limiting seat 6 is also provided with a locking pin 63 in the radial direction. The locking pin 63 is used to radially insert the limiting post 61 to restrict its extension and retraction relative to the limiting seat 6.

[0028] As a further provision of the above scheme, the sealing cover 13 is provided with a flange cover 14 and a sealing cover 15. The flange cover 14 is provided with a passage outlet 141. The sealing cover 15 is used to close the passage flow channel 12 of the valve body 1. It also includes a sealing bushing 8 and a plug 9. The sealing bushing 8 is provided relative to each passage flow channel 12 of the valve body 1. The plug 9 is used to cooperate with the sealing cover 15 to close the passage flow channel 12.

[0029] The ball valve designed in this utility model, based on the switching and cooperation of valve body 1 and valve cover 2, can achieve a variety of application control effects and realize a variety of setting methods to meet the needs of working conditions.

[0030] Example 1: The ball valve of this example has two sealing covers 15 and two flange covers 14 on its valve body 1, and a discharge port for discharging retained media is provided on the opposite side of the valve shaft hole 11. In use, the ball valve of this example switches the media flow path through the rotating ball core 4, such as... Figure 1 As shown, when the valve stem 5 rotates with the ball core 4, the eccentrically positioned drain port 43 on the ball core 4 switches from being blocked by the perforated plug sleeve 9 to being open, thereby allowing the medium retained in the ball core 4 after the valve is closed to be discharged from the valve body 1 through the drain port 43. When the valve is opened, the drain port 43 is closed by rotating and misaligning with the opening of the plug sleeve 9. This structure can effectively prevent the medium from being retained in the ball core 4 after the valve is closed, which can cause problems such as the growth of bacteria.

[0031] Example 2: When needed, customers or manufacturers can adjust the flange cover 14 and sealing cover 15 according to the working conditions. By switching the sealing cover 15 to the plug sleeve 9, it can be switched to a horizontal tee structure. Furthermore, depending on the direction of the pipeline, three flow channels 12 can be opened at will. In this embodiment, the limiting seat 6 is movable, and its structure includes a limiting hole 62 on the limiting seat 6, with a limiting post 61 inserted into it. It is worth noting that limiting elements are provided at both ends of the limiting post 61 to prevent the limiting post 61 from disengaging relative to the limiting hole 62. This allows the limit post 61 to move only within the limiting hole 62, with its two ends respectively blocking the rotation of the drive unit 7 and misaligning with the drive unit 7 without obstruction or interference. Thus, by adjusting the position of the limiting post 61, the rotation of the drive unit 7 and the valve stem 5 is limited. Furthermore, in this embodiment, the limiting post 61 is also provided with a locking pin 63 that radially inserts into both the limiting post 61 and the limiting seat 6. It is worth noting that the locking pin 63 is used to lock the limiting post 61 after it is raised relative to the drive unit 7, forming a blocking structure and controlling the position of the rotation angle of the drive unit 7.

[0032] As described in Embodiment 2 above, the ball valve in this embodiment can be adjusted by the limiting post 61 of the limiting seat 6 to realize the adjustment of the rotation angle of the ball valve as needed, realize the switching of the flow path 12, realize the switching in various control applications, and meet the switching of the flow path to adapt to the current working conditions.

[0033] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A multi-way ball valve, characterized in that: It includes a valve body (1), on which a valve shaft hole (11) and several passageways (12) are provided; Valve cover (2), the valve cover (2) includes a sealing cover (13) for closing the passage flow channel (12); Inner liner (3), the inner liner (3) is provided with a notch (31) for the passage flow channel (12), which is used to pad between the inner wall of the valve body (1) and the ball core (4) of the valve body (1); The valve stem (5) extends into the valve body (1) through the valve shaft hole (11) and connects to the ball core (4), which is used to drive the ball core (4) to rotate relative to the valve body (1) to switch the flow path (12); A limiting seat (6) is provided on the valve body (1) to limit the rotation angle of the control ball core (4) of the drive unit (7) of the valve stem (5).

2. A multi-way ball valve according to claim 1, characterized in that: The ball core (4) is provided with a plurality of flow ports (41) corresponding to the passage flow channel (12) of the valve body (1). The flow ports (41) include a flow port (42) of the same size as the passage flow channel (12) and a drain port (43) for discharging the medium retained by the valve when the valve is closed. The drain port (43) is eccentrically arranged relative to the valve stem (5).

3. A multi-way ball valve according to claim 1, characterized in that: The limiting seat (6) is provided with a plurality of limiting holes (62) and limiting posts (61). The limiting seat (6) is also provided with a locking pin (63) in the radial direction. The locking pin (63) is used to radially insert the limiting post (61) to limit its extension and retraction relative to the limiting seat (6).

4. A multi-way ball valve according to claim 1, characterized in that: The closing cover (13) is provided with a flange cover (14) and a sealing cover (15). The flange cover (14) is provided with a passage outlet (141), and the sealing cover (15) is used to close the passage channel (12) of the valve body (1).

5. A multi-way ball valve according to claim 4, characterized in that: It also includes a sealing bushing (8) and a plug (9), the sealing bushing (8) being disposed relative to each of the passage channels (12) of the valve body (1), and the plug (9) being used to cooperate with the sealing cap (15) to close the passage channels (12).

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