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CN-224204745-U - Sealing plug of cylinder penetrating piece

CN224204745UCN 224204745 UCN224204745 UCN 224204745UCN-224204745-U

Abstract

The utility model discloses a sealing plug of a cylinder penetrating piece, which comprises an integrally formed sealing plug body, wherein a plurality of threading holes are formed in the sealing plug body in the axial direction, each threading hole comprises a first threading part, an extrusion part and a second threading part, the first threading part and the second threading part are respectively positioned at two ends of each threading hole, a plurality of extrusion parts are formed between the first threading part and the second threading part, annular bosses with trapezoid cross sections are formed on the inner walls of the extrusion parts, and a single extrusion part comprises extrusion holes, shaping holes and buffer holes which are distributed in sequence.

Inventors

  • HUANG YAN
  • LIU ZHENGPENG

Assignees

  • 江苏华旋传感技术股份有限公司

Dates

Publication Date
20260505
Application Date
20250410

Claims (5)

  1. 1. The sealing plug of the cylinder penetrating piece comprises an integrally formed sealing plug body, wherein a plurality of threading holes are formed in the sealing plug body in the axial direction, the sealing plug is characterized in that the threading holes comprise a first threading part, an extrusion part and a second threading part, the first threading part and the second threading part are respectively positioned at two ends of the threading holes, a plurality of extrusion parts are formed between the first threading part and the second threading part, a plurality of annular bosses with trapezoid cross sections are formed on the inner walls of the extrusion parts, the single extrusion part comprises extrusion holes, shaping holes and buffering holes which are distributed in sequence, the extrusion holes and the buffering holes are taper holes, the taper direction of the extrusion holes is opposite to the taper direction of the buffering holes, the shaping holes are round holes, and the extrusion holes and the buffering holes are respectively formed at two ends of the shaping holes.
  2. 2. A cylinder penetrating member sealing plug according to claim 1, wherein the diameter of the other end of said pressing hole is smaller than the diameter of the other end of said buffering hole.
  3. 3. The cylinder penetrating member sealing plug according to claim 1, wherein a preformed extrusion hole and a pre-shaped hole are further formed between the first threading part and the extrusion part, the preformed extrusion hole is a taper hole, the pre-shaped hole is a round hole, and the diameter of the preformed extrusion hole near the first threading part is smaller than the diameter of the pre-shaped extrusion hole near the pre-shaped hole.
  4. 4. The cylinder penetrating member sealing plug of claim 1, wherein a plurality of sealing rings are formed on an outer surface of said sealing plug body, and wherein a plurality of said sealing rings are disposed on an end portion of said sealing plug body.
  5. 5. The cylinder penetrating member sealing plug according to claim 1, wherein a final extrusion hole, a final shaping hole and a final taper hole are further formed between the extrusion part and the second threading part, the final shaping hole is a round hole, and the final extrusion hole and the final taper hole are formed at two ends of the final shaping hole.

Description

Sealing plug of cylinder penetrating piece Technical Field The utility model relates to the technical field of cylinder penetrating sealing elements, in particular to a sealing plug of a cylinder penetrating element. Background In the existing electric drive system, when the motor runs, water vapor is generated in the motor cavity and enters the interface of the wire harness along a gap between the low-pressure cylinder penetrating piece and the wire harness, so that water vapor or oil liquid in the motor permeates into the controller through the interface of the wire harness, and electronic components in the controller are damaged. Therefore, a gap between the low-pressure cylinder penetrating member and the wire harness needs to be sealed to prevent water vapor or oil from penetrating into the motor cavity. Disclosure of utility model The utility model aims to provide a sealing plug of a cylinder penetrating piece with an integrated structure, a plurality of extrusion parts are arranged in a threading hole, the extrusion parts are used for extruding a wire rod for a plurality of times, the gap between a wire core and an outer insulating layer is reduced, the glue on the surface of the wire rod is uniformly distributed, and meanwhile, the gap between the wire rod and a sealing plug body is filled, so that the tightness is improved, and the problem that oil liquid permeates or water vapor enters equipment is reduced. The utility model provides a sealing plug of a cylinder penetrating piece, which comprises an integrally formed sealing plug body, wherein a plurality of threading holes are formed in the sealing plug body in the axial direction, each threading hole comprises a first threading part, an extrusion part and a second threading part, the first threading part and the second threading part are respectively positioned at two ends of each threading hole, a plurality of extrusion parts are formed between the first threading part and the second threading part, annular bosses with trapezoid cross sections are formed on the inner walls of the extrusion parts, the single extrusion part comprises extrusion holes, shaping holes and buffering holes which are distributed in sequence, the extrusion holes and the buffering holes are taper holes, the taper directions of the extrusion holes are opposite to the taper directions of the buffering holes, the shaping holes are round holes, and the extrusion holes and the buffering holes are respectively formed at two ends of the shaping holes. For extruding the wire, the diameter of the other end of the extruding hole is smaller than that of the other end of the buffer hole. In order to guide the wire and perform primary extrusion, the subsequent extrusion is smoother, a preformed extrusion hole and a preformed hole are further formed between the first threading part and the extrusion part, the preformed extrusion hole is a taper hole, the preformed hole is a round hole, and the diameter of the preformed extrusion hole on the position close to the first threading part is smaller than the diameter of the preformed extrusion hole on the position close to the preformed hole. In order to guarantee the leakproofness between sealing plug body and the through jar spare, the shaping has a plurality of sealing rings on the surface of sealing plug body, and the diameter of density ring is greater than the diameter of sealing plug body, and a plurality of the sealing ring sets up on the tip that is close to first threading portion of sealing plug body. And a final extrusion hole, a final shaping hole and a final taper hole are further formed between the extrusion part and the second threading part, the final shaping hole is a round hole, and the final extrusion hole and the final taper hole are formed at two ends of the final shaping hole. Compared with the prior art, the utility model has the following beneficial effects: (1) By designing the integrated sealing plug body, the assembly of the cylinder penetrating piece is quicker, and errors generated in the assembly are reduced; (2) The extrusion parts are utilized to extrude the wire rod for a plurality of times, so that the glue is used for filling gaps between the wire rod and the sealing plug body, and the glue on the surface of the wire rod is extruded by the extrusion parts, so that the glue is uniformly distributed, the tightness between the wire rod and the sealing plug is improved, and steam and oil liquid are prevented from entering the device through the gaps. Drawings The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings: FIG. 1 is a perspective view of the overall structure of the present utility model; FIG. 2 is a front view of the overall structure of the present utility mo