一种偏心阀芯及阀门
By using a sealing diaphragm and sealing arc in the valve core to form an integral moving unit, the problem of easy deformation of the sealing ring is solved, the sealing effect and service life are improved, and the pressure resistance and vibration resistance are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI LANSHAN DISTRICT KANGYANG PLASTIC PRODUCTS FACTORY
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing plate-type eccentric shaft valve core structure, the sealing ring and gland are prone to compression deformation, resulting in micro-gaps, which affect the sealing effect and service life.
The valve core adopts a sealing diaphragm and sealing arc to form an integral moving unit. The sealing diaphragm is formed by secondary injection molding in the installation arc groove. The fixing parts at both ends are embedded in the fixing groove. The outer wall has an inner groove area to buffer the impact of sand and gravel. The valve core body has a C-shaped eccentric structure to ensure the sealing of water flow.
It improves the reliability and durability of the seal, reduces the formation of micro-gap, extends the service life of the valve, and enhances its pressure resistance and vibration resistance.
Smart Images
Figure CN224515998U_ABST
Abstract
Claims
1. An eccentric spool for assembly in a valve bore of a valve, characterized by include: The valve core body (1) has a sealing arc portion (2) that protrudes outward on its side; A sealing diaphragm (3) is disposed on the sealing arc portion (2). The shape of the sealing diaphragm (3) conforms to the outer contour of the sealing arc portion (2). The sealing diaphragm (3) covers and is fixed to the outer wall of the sealing arc portion (2).
2. An eccentric valve trim according to claim 1, characterized in that: The outer wall of the sealing arc (2) is provided with a corresponding mounting arc groove (4), and the sealing diaphragm (3) is embedded in the mounting arc groove (4).
3. An eccentric valve trim according to claim 2, characterized in that: The sealing arc portion (2) has a fixing groove (5) at both ends along the arc direction. The fixing groove (5) is connected to the mounting arc groove (4). The sealing diaphragm (3) has a fixing part (16) formed at both ends. The fixing part (16) is fitted into the fixing groove (5) one by one.
4. An eccentric valve trim according to claim 3, characterized in that: The fixing groove (5) is formed on the inner wall of the sealing arc (2), and the fixing part (16) is U-shaped.
5. An eccentric valve trim according to claim 2, wherein: The area of the mounting groove (4) accounts for more than or equal to 80% of the outer arc surface of the sealing arc (2).
6. An eccentric valve trim according to claim 1, wherein: The outer wall of the sealing diaphragm (3) has an inner groove area (6).
7. An eccentric valve trim according to claim 1, wherein: The valve core body (1) has a C-shaped eccentric structure, and the sealing diaphragm (3) is elastic.
8. A valve, comprising a valve body (101) and a top cover (102), wherein the valve body (101) has a valve cavity (8), and the top of the valve body (101) is provided with a mounting port (9) communicating the valve cavity (8) to the outside, the top cover (102) being installed at the mounting port (9), the valve cavity (8) further comprising at least three fluid passages, each fluid passage including an inner flow port (111) communicating to the valve cavity (8) and an outer flow port (112) communicating to the outside, characterized in that: It also includes an eccentric valve core as described in any one of claims 1 to 7, wherein the valve core body (1) is installed in the valve cavity (8), the valve core body (1) is rotatably disposed relative to the valve body (101), and the sealing diaphragm (3) can be tightly attached to different internal flow channels (111) for sealing.
9. A valve according to claim 8, wherein: The shape of the inner groove area (6) is adapted to the inner flow channel opening (111), and the area size of the inner groove area (6) is smaller than the opening profile of the inner flow channel opening (111).
10. A valve according to claim 8, further comprising a handle (11), characterized in that: The upper and lower ends of the valve core body (1) are respectively provided with an upper rotating shaft (71) and a lower rotating shaft (72). The handle (11) is fixed to the upper rotating shaft (71). The handle (11) is provided with a fixing block (12). A hinge groove (131) is formed between the fixing block (12) and the upper cover (102). The hinge groove (131) is connected to the valve cavity (8). The upper rotating shaft (71) is embedded in the hinge groove (131). The hinge groove (131) is provided with a sealing ring (14). The sealing ring (14) is sleeved on the upper rotating shaft (71). The bottom of the valve cavity (8) is provided with a hinge part (15), and the hinge part (15) is provided with a hinge groove (132) corresponding to the hinge groove one (131). The hinge groove two (132) is used for the lower rotating shaft (72) to be inserted.