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CN-121977080-A - Self-lubricating sealed electromagnetic valve

CN121977080ACN 121977080 ACN121977080 ACN 121977080ACN-121977080-A

Abstract

The invention provides a self-lubricating sealed electromagnetic valve, and belongs to the technical field of sealing. The self-lubricating sealed electromagnetic valve comprises a movable iron core, a jacking component, a base, a sealing ring and a sealing piece, wherein the jacking component comprises a sleeve seat and a push rod, the push rod is connected with the movable iron core, the base is provided with a containing cavity and a sliding hole communicated with the containing cavity, the push rod penetrates through the sliding hole, the sleeve seat is at least partially arranged in the containing cavity, the sleeve seat can move back and forth in the sliding hole direction, an annular groove is formed in the inner wall of the containing cavity, the sealing ring is arranged in the annular groove, the sealing piece comprises a main body made of polytetrafluoroethylene, the main body is partially arranged in the annular groove and is arranged at the inner ring position of the sealing ring, the inner ring of the sealing ring is abutted against the outer ring of the main body, and the inner ring of the main body is abutted against the outer wall of the sleeve seat.

Inventors

  • SONG HUABING
  • Song Zhuojia
  • SONG YEMING

Assignees

  • 浙江创博汽车部件科技有限公司

Dates

Publication Date
20260505
Application Date
20260112

Claims (6)

  1. 1. A self-lubricating sealed solenoid valve, comprising: a movable iron core (2); The jacking component (3), the jacking component (3) comprises a sleeve seat (31) and a push rod (32), and the push rod (32) is connected with the movable iron core (2); the base (4) is provided with a containing cavity (41) and a sliding hole (42) communicated with the containing cavity (41), the ejector rod (32) penetrates through the sliding hole (42), the sleeve seat (31) is at least partially arranged in the containing cavity (41), and the sleeve seat (31) can move back and forth in the direction of the sliding hole (42); a sealing ring (5), wherein the sealing ring (5) is arranged in the annular groove (411); The sealing piece (6) comprises a main body made of polytetrafluoroethylene, the main body is partially arranged in the annular groove (411) and is arranged at the inner ring position of the sealing ring (5), the inner ring of the sealing ring (5) is abutted against the outer ring of the main body, and the inner ring of the main body is abutted against the outer wall of the sleeve seat (31).
  2. 2. The self-lubricating sealed electromagnetic valve according to claim 1, characterized in that the outer ring of the main body is provided with a first convex ring part (61) and a second convex ring part (62) which are protruded towards the direction away from the inner ring, a containing groove (63) is formed between the first convex ring part (61) and the second convex ring part (62), and the sealing ring (5) partially enters the containing groove (63).
  3. 3. The self-lubricating sealed solenoid valve according to claim 2, characterized in that the first and second collar portions (61, 62) are provided with an upper bearing surface (611) and a lower bearing surface (621), respectively, which upper bearing surface (611) and lower bearing surface (621) can abut against an upper wall (4111) and a lower wall (4112), respectively, of the annular groove (411) when the body is arranged in the annular groove (411), so as to limit the displacement of the body in the direction of movement of the casing seat (31).
  4. 4. The self-lubricating sealed solenoid valve according to claim 1, characterized in that said upper (611) and lower (621) bearing surfaces are mutually parallel.
  5. 5. A self-lubricating sealed solenoid valve according to claim 3, characterised in that the inner ring of the body acts as a sealing surface (64), a first guiding surface (65) being provided between the sealing surface (64) and the upper bearing surface (611), and a second guiding surface (66) being provided between the sealing surface (64) and the lower bearing surface (621).
  6. 6. A self-lubricating sealed solenoid valve according to claim 1, characterised in that said sealing ring (5) is mounted in compression in said annular groove (411) so as to press said seal (6) towards the casing seat (31).

Description

Self-lubricating sealed electromagnetic valve Technical Field The invention belongs to the technical field of sealing, and particularly relates to a self-lubricating sealed electromagnetic valve. Background In patent No. 20241180708. X, entitled air spring solenoid valve, a guide of complex structure for guiding a lifting member is disclosed, which has both guiding and sealing functions. However, the lifting part needs to be in a reciprocating movement state for a long time in the actual use process, so that friction is continuously generated between the lifting part and the guide piece, the service lives of the lifting part and the guide piece are greatly shortened, and a lubricant is additionally added in the use process. Disclosure of Invention The invention aims to solve the problems in the prior art and provides a self-lubricating sealed electromagnetic valve. The aim of the invention can be achieved by the following technical scheme: A self-lubricating sealed solenoid valve comprising: A movable iron core; The jacking component comprises a sleeve seat and a push rod, and the push rod is connected with the movable iron core; The base is provided with a containing cavity and a sliding hole communicated with the containing cavity, the ejector rod penetrates through the sliding hole, and the sleeve seat is at least partially arranged in the containing cavity and can move back and forth in the sliding hole direction; The sealing ring is arranged in the annular groove; the sealing piece comprises a main body made of polytetrafluoroethylene, the main body is partially arranged in the annular groove and at the inner ring position of the sealing ring, the inner ring of the sealing ring is abutted against the outer ring of the main body, and the inner ring of the main body is abutted against the outer wall of the sleeve seat. In the self-lubricating sealed electromagnetic valve, the outer ring of the main body is provided with a first convex ring part and a second convex ring part which are protruded towards the direction away from the inner ring, a containing groove is formed between the first convex ring part and the second convex ring part, and the sealing ring locally enters the containing groove. In the self-lubricating sealed electromagnetic valve, the first convex ring part and the second convex ring part are respectively provided with an upper bearing surface and a lower bearing surface, and when the main body is arranged in the annular groove, the upper bearing surface and the lower bearing surface can respectively lean against the upper wall and the lower wall of the annular groove so as to limit the displacement of the main body along the moving direction of the sleeve seat. In the self-lubricating sealed solenoid valve, the upper bearing surface and the lower bearing surface are parallel to each other. In the self-lubricating sealed electromagnetic valve, the inner ring of the main body is used as a sealing surface, a first guiding surface is arranged between the sealing surface and the upper bearing surface, and a second guiding surface is arranged between the sealing surface and the lower bearing surface. In the self-lubricating sealed solenoid valve, the sealing ring is arranged in the annular groove in a compressed mode, so that the sealing piece is pressed towards the sleeve seat. Compared with the prior art, the application has the following advantages: The sealing element is made of polytetrafluoroethylene, so that the problem of dry friction between the lifting part and the guiding sealing structure during reciprocating movement is remarkably reduced by virtue of the self-lubricating characteristic of the sealing element, additional lubricant filling is not needed, maintenance procedures are reduced, hidden hazards such as lubricant ageing and pollution are avoided, friction loss is greatly reduced, and the service lives of the lifting part, the sealing element and the whole electromagnetic valve are effectively prolonged. Drawings FIG. 1 is a cross-sectional structural view of the present application; FIG. 2 is an enlarged partial block diagram of FIG. 1; FIG. 3 is a block diagram of a seal in accordance with the present application; In the drawing the view of the figure, 2. A movable iron core; 3. The lifting component, 31, the sleeve seat, 32, the ejector rod; 4. The base, 41, the accommodating cavity, 411, the annular groove, 4111, the upper wall, 4112, the lower wall, 42 and the sliding hole; 5. A seal ring; 6. the sealing element comprises a sealing element, a first convex ring part, 611, an upper bearing surface, 62, a second convex ring part, 621, a lower bearing surface, 63, a containing groove, 64, a sealing surface, 65, a first guide surface, 66 and a second guide surface. Detailed Description The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments