Multi-waterway switching valve core

Abstract

The utility model discloses a kind of multi-waterway switching valve core, including valve shell, bottom cover, pivot, ceramic moving piece and ceramic fixed piece;Valve shell is provided with through-hole and water inlet, bottom cover fixedly covers and is set at the lower end of valve shell;Ceramic fixed piece is provided with first to third sector holes, and first to third water outlet holes are correspondingly provided on bottom cover;Ceramic moving piece is rotatably cooperatively installed on ceramic fixed piece, overflow gap is set on the outer edge surface of ceramic moving piece, and overflow gap can realize the communication of water inlet and any sector hole or two sector holes in the rotation process of ceramic moving piece;Pivot includes linkage part located in valve shell and linked with ceramic moving piece, and shaft part, which is arranged to the outside of valve shell through through-hole, and ceramic moving piece can be rotated on ceramic fixed piece by rotating pivot.The utility model can rotate the angle of ceramic moving piece on ceramic fixed piece by rotating pivot to control the on-off of different waterways.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to a multi-water-path switching valve core. Background Technology

[0002] Among various water-related equipment, many feature complex waterway designs that require frequent switching between different channels to meet varying needs during operation. Of the many components, the valve core is the most crucial element directly related to channel switching. However, traditional valve cores for complex waterways are typically large, contain numerous parts, and are costly to manufacture, making them unsuitable for home use and thus requiring improvement. Utility Model Content

[0003] The present invention aims to overcome the defects in the prior art and provides a multi-water-path switching valve core. By rotating the rotating shaft, the ceramic moving plate can be linked to rotate on the ceramic fixed plate to adjust the angle, thereby controlling the opening and closing of different water paths. It is applicable to products or equipment with complex water paths.

[0004] To achieve the above objectives, this utility model provides a multi-channel switching valve core, including a valve housing, a bottom cover, and a rotating shaft, a ceramic moving plate, and a ceramic stationary plate that are sequentially and tightly attached between the valve housing and the bottom cover. The valve housing is a barrel-shaped structure with an open bottom and a through hole at the central axis of its upper end. A water inlet is provided on the peripheral wall of the valve housing, and the bottom cover is fixedly installed at the lower port of the valve housing. The ceramic plate is positioned and installed on the bottom cover. The ceramic plate has a first fan-shaped hole, a second fan-shaped hole and a third fan-shaped hole arranged sequentially around its outer edge. The bottom cover is provided with a first water outlet, a second water outlet and a third water outlet that are connected to the first, second and third fan-shaped holes respectively. The ceramic moving plate is rotatably mounted on the ceramic fixed plate. The outer edge of the ceramic moving plate is provided with a flow-through notch. The flow-through notch can connect the water inlet with any or two sector holes as the ceramic moving plate rotates. The rotating shaft includes a linkage part located inside the valve housing and linked to the ceramic moving plate, and a shaft part that passes through a through hole to the outside of the valve housing. By rotating the rotating shaft, the ceramic moving plate can be driven to rotate on the ceramic stationary plate.

[0005] Further configuration: a plurality of linkage grooves are provided on the upper end surface of the ceramic moving plate, and a linkage protrusion placed in the linkage groove is correspondingly provided on the linkage part of the rotating shaft.

[0006] Further configured as follows: the bottom cover is a stepped columnar structure, including a small diameter portion placed inside the lower port of the valve housing and a large diameter portion connected below the small diameter portion. A plurality of snap-fit ​​parts extending into the valve housing are arranged circumferentially on the upper end surface of the large diameter portion, and corresponding snap-fit ​​slots that cooperate with the snap-fit ​​parts are provided on the peripheral wall of the valve housing.

[0007] The further configuration is as follows: at least two of the fasteners are provided with positioning holes, and the outer peripheral wall of the ceramic plate is provided with positioning protrusions that cooperate with the positioning holes.

[0008] A further provision is made: a sealing ring is provided between the shaft portion of the rotating shaft and the through hole of the valve housing.

[0009] A further feature is provided: a shaped sealing element is provided between the bottom cover and the ceramic plate.

[0010] A further provision is made: the shaft portion of the rotating shaft is provided with a mounting structure for mounting gears or a motor.

[0011] The configuration is further defined as follows: the first, second, and third sector-shaped holes have the same structure and are evenly spaced, and the shape of the flow-through notch is adapted to the shape of the first sector-shaped hole.

[0012] The ceramic moving plate is further configured with a connecting groove that can simultaneously cover two adjacent fan-shaped holes to achieve communication during its rotation. The ceramic stationary plate has a blocking area between the first and third fan-shaped holes that can completely block the connecting groove. When the connecting groove covers the second and third fan-shaped holes, the flow notch is relatively connected to the first fan-shaped hole.

[0013] Compared with the prior art, the present invention has a simple and reasonable structure, fewer core components, lower manufacturing and maintenance costs, and simpler production and assembly. At the same time, the valve core has fewer sealing points, resulting in a lower risk of leakage and cross-contamination. Furthermore, the valve core is easy to control; different water channels can be controlled by simply controlling the rotation of the shaft at different angles, making it suitable for products or equipment with more complex water channels. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a multi-channel switching valve core according to the present invention; Figure 2 This is a schematic diagram of the valve core's separate structure; Figure 3 This is a schematic diagram of the three-dimensional structure of the ceramic moving sheet; Figure 4 This is a schematic diagram of the three-dimensional structure of the bottom cover.

[0015] The following reference numerals are marked on the accompanying drawings: 10. Valve housing; 11. Through hole; 12. Inlet; 13. Bayonet; 20. Bottom cover; 21. Large diameter section; 211. Fastener; 212. Positioning port; 22. Small diameter section; 221. First outlet hole; 222. Second outlet hole; 223. Third outlet hole; 224. Groove; 30. Rotating shaft; 31. Shaft section; 32. Linkage section; 321. Linkage protrusion; 40. Ceramic moving plate; 41. Flow notch; 42. Linkage groove; 43. Connecting groove; 50. Ceramic fixed plate; 51. First sector hole; 52. Second sector hole; 53. Third sector hole; 54. Positioning protrusion; 60. Irregular seal. Detailed Implementation

[0016] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0017] This utility model discloses a multi-channel switching valve core, such as... Figure 1 and Figure 2 As shown, it includes a valve housing 10, a bottom cover 20, and a rotating shaft 30, a ceramic moving plate 40, and a ceramic fixed plate 50 that are sequentially and tightly attached between the valve housing 10 and the bottom cover 20. The valve housing 10 has an inlet 12 on its peripheral wall, and the bottom cover 20 has three outlets. The rotating shaft 30 drives the ceramic moving plate 40 to rotate on the ceramic fixed plate 50 to switch between the inlet 12 and the three outlets, thereby controlling the opening and closing of different water circuits. It is suitable for products or equipment with complex water circuits.

[0018] In this embodiment, as Figure 2 , Figure 3 and Figure 4As shown, the valve housing 10 is a cylindrical structure with an open lower end, and a through hole 11 for the rotating shaft 30 to pass through is provided at the central axis of its upper end face. The bottom cover 20 is fixedly installed at the lower end of the valve housing 10 so that the two fit together to form an inner cavity. Specifically, the bottom cover 20 is a stepped columnar structure, including a small diameter portion 22 placed inside the lower end of the valve housing 10, and a large diameter portion 21 connected below the small diameter portion 22. Several fasteners 211 extending into the valve housing 10 are arranged circumferentially on the upper end face of the large diameter portion 21. The bottom cover 20 is provided with a corresponding snap-fit ​​13 on its peripheral wall to engage with the snap-fit ​​member 211. Thus, the bottom cover 20 is securely connected to the valve body 10 by snapping the snap-fit ​​member 211 with the snap-fit ​​13. The ceramic fixed plate 50 is positioned and installed on the bottom cover 20. Specifically, at least two of the snap-fit ​​members 211 are provided with positioning openings 212, and the outer peripheral wall of the ceramic fixed plate 50 is provided with corresponding positioning protrusions 54 to engage with the positioning openings 212. Thus, the positioning protrusions 54 engage with the positioning openings 212 to achieve positioning and installation. The ceramic movable plate 40 can... The rotating shaft 30 is mounted on the ceramic fixed plate 50. It includes a shaft portion 31 extending through a through hole 11 to the outside of the valve housing 10, and a linkage portion 32 located inside the valve housing 10 and linked to the ceramic movable plate 40. Preferably, a sealing ring is provided between the shaft portion 31 of the rotating shaft 30 and the through hole 11 of the valve housing 10 to ensure a tight seal. The end of the shaft portion 31 located outside the valve housing 10 is provided with a mounting structure for mounting gears or a motor to facilitate external power components driving the rotating shaft 30 to rotate. The rotating shaft 30 and the ceramic movable plate 40... The linkage structure between them is as follows: several linkage grooves 42 are provided on the upper end surface of the ceramic moving plate 40, and linkage protrusions 321 are correspondingly provided on the linkage part 32 of the rotating shaft 30 and placed in the linkage grooves 42. In this way, the linkage protrusions 321 are embedded in the linkage grooves 42 to realize the linkage connection between the rotating shaft 30 and the ceramic moving plate 40. Thus, the rotating shaft 30 can easily drive the ceramic moving plate 40 to rotate on the ceramic fixed plate 50 to adjust the angle, thereby controlling the opening or closing of different water passages of the valve core to be suitable for products or equipment with complex water passages.

[0019] In the above scheme, such as Figure 2 , Figure 3 and Figure 4As shown, the ceramic plate 50 has a first sector-shaped hole 51, a second sector-shaped hole 52, and a third sector-shaped hole 53 arranged sequentially (counterclockwise) around its outer edge. Preferably, the three sector-shaped holes have the same structure and are evenly spaced around the circumference. The bottom cover 20 has a first water outlet 221, a second water outlet 222, and a third water outlet 223 respectively, which are connected to the first, second, and third sector-shaped holes 53. Thus, the first water outlet 221 and the first sector-shaped hole 51 cooperate to form a first water outlet channel, the second sector-shaped hole 52 and the second water outlet 222 cooperate to form a second water outlet channel, and the third sector-shaped hole 53... 3 and the third outlet hole 223 cooperate to form a third outlet channel; an overflow notch 41 is provided on the outer edge surface of the ceramic moving plate 40. The overflow notch 41 can realize the connection between the inlet 12 and any or two fan-shaped holes during the rotation of the ceramic moving plate 40. Specifically, the shape of the overflow notch 41 is adapted to the shape of the fan-shaped hole so as to facilitate the one-to-one correspondence between the overflow notch 41 and any fan-shaped hole. At the same time, the width of the overflow notch 41 is greater than the distance between adjacent fan-shaped holes so as to facilitate the overflow notch 41 to rotate between adjacent fan-shaped holes and realize the overflow notch 41 to connect with two fan-shaped holes at the same time.

[0020] In this embodiment, a shaped sealing member 60 is provided between the bottom cover 20 and the ceramic plate 50 to ensure the sealing between the two. The shaped sealing member 60 includes an annular portion arranged along the outer edge of the first, second, and third water outlet holes 223 (fan-shaped holes) and a plurality of partition portions that separate adjacent water outlet holes (fan-shaped holes). In this way, each water outlet channel is isolated individually by the shaped sealing member 60 to ensure the sealing. Preferably, the bottom cover 20 is provided with a groove 224 for the shaped sealing member 60 to be embedded.

[0021] In this embodiment, as Figure 3 As shown, the ceramic moving plate 40 is also provided with a connecting groove 43 that can simultaneously cover two adjacent fan-shaped holes to achieve communication during its rotation. The shape of the connecting groove 43 is adapted to the shape formed by the two adjacent fan-shaped holes. The ceramic stationary plate 50 has a blocking area between the first fan-shaped hole 51 and the third fan-shaped hole 53 that can completely block the connecting groove 43 on the ceramic moving plate 40. At the same time, the ceramic moving plate 40 and the ceramic stationary plate 50 are configured such that when the connecting groove 43 just covers the second and third fan-shaped holes 53, the flow notch 41 is relatively connected to the first fan-shaped hole 51. This can enrich the function of the valve core to be suitable for products or equipment with complex water circuits.

[0022] Compared with the prior art, the present invention has a simple and reasonable structure, fewer core components, lower manufacturing and maintenance costs, and simpler production and assembly. At the same time, the valve core has fewer sealing points, resulting in a lower risk of leakage and cross-contamination. Furthermore, the valve core is easy to control; different water channels can be controlled by simply controlling the rotation of the shaft at different angles, making it suitable for products or equipment with more complex water channels.

[0023] The above-disclosed embodiments are merely examples of the present utility model. However, the present utility model is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A multi-channel switching valve core, characterized in that, It includes a valve housing, a bottom cover, and a rotating shaft, a ceramic moving plate, and a ceramic stationary plate that are sequentially and tightly attached between the valve housing and the bottom cover; The valve housing is a barrel-shaped structure with an open bottom and a through hole at the central axis of its upper end. A water inlet is provided on the peripheral wall of the valve housing, and the bottom cover is fixedly installed at the lower port of the valve housing. The ceramic plate is positioned and installed on the bottom cover. The ceramic plate has a first fan-shaped hole, a second fan-shaped hole and a third fan-shaped hole arranged sequentially around its outer edge. The bottom cover is provided with a first water outlet, a second water outlet and a third water outlet that are connected to the first, second and third fan-shaped holes respectively. The ceramic moving plate is rotatably mounted on the ceramic fixed plate. The outer edge of the ceramic moving plate is provided with a flow-through notch. The flow-through notch can connect the water inlet with any or two sector holes as the ceramic moving plate rotates. The rotating shaft includes a linkage part located inside the valve housing and linked to the ceramic moving plate, and a shaft part that passes through a through hole to the outside of the valve housing. By rotating the rotating shaft, the ceramic moving plate can be driven to rotate on the ceramic stationary plate.

2. The multi-channel switching valve core according to claim 1, characterized in that, The upper surface of the ceramic moving plate is provided with several linkage grooves, and the linkage part of the rotating shaft is provided with corresponding linkage protrusions placed in the linkage grooves.

3. A multi-channel switching valve core according to claim 1, characterized in that, The bottom cover has a stepped columnar structure, including a small diameter portion placed inside the lower port of the valve housing and a large diameter portion connected below the small diameter portion. Several snap-fit ​​parts extending into the valve housing are arranged circumferentially on the upper end surface of the large diameter portion, and corresponding snap-fit ​​slots that cooperate with the snap-fit ​​parts are provided on the peripheral wall of the valve housing.

4. A multi-channel switching valve core according to claim 3, characterized in that, At least two of the fasteners are provided with positioning holes, and the outer peripheral wall of the ceramic plate is provided with positioning protrusions that cooperate with the positioning holes.

5. A multi-channel switching valve core according to claim 1, characterized in that, A sealing ring is provided between the shaft portion of the rotating shaft and the through hole of the valve housing.

6. A multi-channel switching valve core according to claim 1, characterized in that, An irregularly shaped sealing element is provided between the bottom cover and the ceramic plate.

7. A multi-channel switching valve core according to claim 1, characterized in that, The shaft has a mounting structure for mounting gears or motors.

8. A multi-channel switching valve core according to claim 1, characterized in that, The first, second, and third sector-shaped holes have the same structure and are evenly spaced, and the shape of the flow-through notch is adapted to the shape of the first sector-shaped hole.

9. A multi-channel switching valve core according to claim 8, characterized in that, The ceramic moving plate is also provided with a connecting groove that can simultaneously cover two adjacent fan-shaped holes to achieve communication during its rotation. The ceramic stationary plate has a blocking area between the first and third fan-shaped holes that can completely block the connecting groove. When the connecting groove covers the second and third fan-shaped holes, the flow notch is relatively connected to the first fan-shaped hole.

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