Anti-flipping valve plug seal

Abstract

This utility model discloses an anti-flanging valve plug sealing ring, comprising a rubber body with an embedded skeleton made of metal. The outer rubber body and the inner skeleton are integrally vulcanized. Thus, utilizing the strength and rigidity of the metal skeleton, it effectively resists the impact of oil, fundamentally preventing the sealing ring from flanging due to oil impact. This significantly improves the reliability and service life of the sealing ring, avoids sealing failure and transmission oil leakage caused by sealing ring damage, reduces the frequency of transmission maintenance due to leakage, lowers equipment maintenance costs and downtime, and improves production efficiency and equipment reliability.

Description

Technical Field

[0001] This utility model relates to the field of transmission solenoid valve sealing technology, and in particular to a valve plug sealing ring that prevents flange flipping. Background Technology

[0002] In the current field of transmission solenoid valves, the sealing performance of the valve plug is crucial. (Reference) Figure 1 As shown, the existing solenoid valve stem sealing structure typically consists of a stem, a snap-fit, a sealing ring, and a limiting snap ring. The sealing ring is generally made of rubber. In actual operation, the transmission fluid flows in a specific direction ( Figure 1 (In the direction of arrow A) the water flows in, and the valve stem reciprocates. Figure 1 (in the direction of the double-headed arrows B and B'), at this time the sealing ring is in close contact with the housing, undertaking the sealing function and precisely controlling the flow of transmission oil. However, this traditional structure has the following obvious defects: when the oil impacts the sealing ring at the end that is not sealing, under the strong action of oil pressure, the sealing ring is very easy to be impacted and lifted, resulting in a flipping phenomenon. Figure 1 The C-shaped area is prone to buckling. Over time, repeated impacts can cause the seal to gradually break, eventually leading to seal failure and transmission fluid leakage. This leakage not only affects the normal operation of the transmission and reduces its efficiency, but may also trigger a series of other malfunctions, increasing equipment maintenance costs and downtime, causing considerable inconvenience to production and use. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model proposes a valve plug sealing ring that prevents flange flipping.

[0004] This utility model proposes a valve plug sealing ring to prevent edge flipping, which includes a rubber body with a skeleton embedded in the rubber body. The skeleton is made of metal, and the outer rubber body and the inner skeleton are integrally vulcanized.

[0005] Preferably, the skeleton is disposed close to the inner side of the rubber body, and the skeleton surrounds the rubber body circumferentially.

[0006] Preferably, the material of the skeleton is DC01 with a thickness of 0.6 mm.

[0007] Preferably, a sealing lip is provided on the edge of the rubber body that contacts the housing.

[0008] Preferably, the sealing lip is made of a soft and highly elastic rubber material.

[0009] Preferably, the rubber body is made of hydrogenated nitrile rubber with a Shore hardness of 70±5.

[0010] In summary, this utility model has the following beneficial effects: by embedding a high-strength metal skeleton into the rubber body and vulcanizing it integrally to make it tightly bonded to the rubber body, the strength and rigidity of the metal skeleton can effectively resist the impact of oil, fundamentally preventing the sealing ring from flipping due to oil impact, greatly improving the reliability and service life of the sealing ring, avoiding the problem of sealing failure and transmission oil leakage caused by sealing ring damage, reducing the number of times the transmission needs to be repaired due to leakage problems, reducing equipment maintenance costs and downtime, and improving production efficiency and equipment reliability.

[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0012] Figure 1 A schematic diagram of an existing valve stem fitted with a sealing ring;

[0013] Figure 2 A structural diagram of a valve plug sealing ring with anti-flipping sleeve fitted on the valve stem according to an embodiment of this utility model;

[0014] Figure 3 The three-dimensional anti-flip valve plug sealing ring of this utility model embodiment Figure 1 ;

[0015] Figure 4 The three-dimensional anti-flip valve plug sealing ring of this utility model embodiment Figure 2 .

[0016] Figure 2-4 middle:

[0017] 1. Valve stem; 2. Rubber body; 3. Skeleton. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] like Figure 2-4 As shown, the valve plug sealing ring for preventing edge flipping proposed in this embodiment includes a rubber body 2, with a skeleton 3 embedded in the rubber body 2. The skeleton 3 is made of metal, and the outer rubber body 2 and the inner skeleton 3 are integrally vulcanized.

[0020] The skeleton is located close to the inner side of the rubber body and surrounds the rubber body circumferentially.

[0021] Specifically, the material of the skeleton 3 is set as DC01 (cold-rolled low-carbon steel plate) with a thickness of 0.6mm.

[0022] Meanwhile, the material of rubber body 2 is set as hydrogenated nitrile butadiene rubber (HNBR) with a Shore hardness of 70±5.

[0023] In this way, by embedding a high-strength metal skeleton 3 inside the rubber body 2 and vulcanizing it in one piece to make it tightly bonded to the rubber body 2, the strength and rigidity of the metal skeleton 3 can effectively resist the impact of oil, fundamentally preventing the sealing ring from flipping due to oil impact, greatly improving the reliability and service life of the sealing ring, avoiding the problem of sealing failure and transmission oil leakage caused by sealing ring damage, reducing the number of times the transmission needs to be repaired due to leakage problems, reducing equipment maintenance costs and downtime, and improving production efficiency and equipment reliability.

[0024] Furthermore, a sealing lip (not shown in the figure) is provided on the edge of the rubber body 2 that contacts the housing, which further enhances the sealing effect. The sealing lip can form multiple sealing lines with the valve stem and the housing surface, effectively preventing transmission oil leakage and ensuring that the transmission solenoid valve can always maintain a good working condition.

[0025] The sealing lip can be installed on the edge of the rubber body 2 through a special bonding process or a secondary injection molding process to ensure that the sealing lip is firmly installed, accurately positioned, and can effectively play an auxiliary sealing role.

[0026] Furthermore, the sealing lip is made of a soft and highly elastic rubber material to ensure high elasticity and good sealing performance.

[0027] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rolled edge preventing valve plug seal ring comprising a rubber body, characterized in that, The rubber body is embedded in a framework, the framework is made of metal material, and the rubber body of the outer layer and the framework of the inner layer are integrally vulcanized and formed; the framework is arranged close to the inner side of the rubber body, and the framework surrounds the rubber body in the circumferential direction, the material of the framework is DC01 cold-rolled low-carbon steel plate, and the thickness is 0.6 mm.

2. The rolled edge valve plug seal of claim 1, wherein, The side edge of the rubber body in contact with the shell is provided with a sealing lip.

3. The rolled edge valve plug seal of claim 2, wherein, The sealing lip is made of soft and high-elasticity rubber material.

4. The rolled edge valve plug seal of claim 1, wherein, The material of the rubber body is hydrogenated nitrile rubber, and the Shore hardness is 70±5.

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