Sealing plug of penetrating cylinder piece

Abstract

The utility model discloses a sealing plug of a penetrating cylinder piece, which comprises an integrally formed sealing plug body, 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, and the first threading part and the second threading part are respectively positioned at two ends of the threading hole. The sealing plug body is provided with a first threading part and a second threading part, a plurality of extrusion parts are arranged between the first threading part and the second threading part, annular bosses with trapezoidal cross sections are formed on the inner walls of the extrusion parts, and each extrusion part comprises an extrusion hole, a shaping hole and a buffer hole which are sequentially distributed. In order to solve the problem of steam and oil liquid permeation caused by the fact that the wire rod penetrates through the wire penetrating hole, a plurality of extrusion parts are arranged in the wire penetrating hole, the extrusion parts are used for extruding the wire rod for multiple times, glue on the surface of the wire rod is evenly distributed, meanwhile, the gap between the wire rod and the sealing plug body is filled, the sealing performance is improved, and the problem that oil liquid permeates or water vapor enters equipment is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of cylinder through-cylinder seals, specifically to the sealing plug of cylinder through-cylinder components. Background Technology

[0002] In existing electric drive systems, water vapor is generated inside the motor cavity during motor operation. This water vapor enters the wiring harness interface through the gap between the low-pressure cylinder component and the wiring harness. Consequently, water vapor or oil inside the motor can seep into the controller through the wiring harness interface, damaging the electronic components inside the controller.

[0003] Therefore, it is necessary to seal the gap between the low-pressure cylinder component and the wiring harness to prevent water vapor or oil from seeping into the motor cavity. Utility Model Content

[0004] The purpose of this invention is to provide a sealing plug for a cylinder-passing component with an integrated structure. Multiple extrusion sections are opened in the wire-passing hole. The extrusion sections are used to extrude the wire multiple times, reducing the gap between the wire core and the outer insulation layer, making the glue on the surface of the wire evenly distributed. At the same time, the gap between the wire and the sealing plug body is filled, improving the sealing performance and reducing the problem of oil penetration or water vapor entering the equipment.

[0005] This utility model provides the following technical solution: a sealing plug for a cylinder part, comprising an integrally formed sealing plug body, wherein the sealing plug body has multiple through holes in the axial direction, each through hole comprising a first through hole, a compression hole and a second through hole, the first through hole and the second through hole being located at opposite ends of the through hole, and multiple compression holes being formed between the first through hole and the second through hole, wherein annular bosses with trapezoidal cross-sections are formed on the inner walls of the multiple compression holes, such that a single compression hole includes compression holes, shaping holes and buffer holes distributed in sequence, wherein the compression holes and buffer holes are both conical holes, the taper direction of the compression holes being opposite to the taper direction of the buffer holes, the shaping holes being circular holes, and the compression holes and buffer holes being formed at opposite ends of the shaping holes.

[0006] In order to compress the wire, the diameter of the other end of the extrusion hole is smaller than the diameter of the other end of the buffer hole.

[0007] In order to guide the wire and perform initial extrusion to make subsequent extrusion smoother, a pre-forming extrusion hole and a pre-forming hole are provided between the first wire threading part and the extrusion part. The pre-forming extrusion hole is a conical hole and the pre-forming hole is a round hole. The diameter of the pre-forming extrusion hole near the first wire threading part is smaller than the diameter of the pre-forming extrusion hole near the pre-forming hole.

[0008] To ensure a tight seal between the sealing plug body and the cylinder thread, multiple sealing rings are formed on the outer surface of the sealing plug body. The diameter of the sealing rings is larger than the diameter of the sealing plug body, and the multiple sealing rings are disposed on the end of the sealing plug body near the first threaded portion.

[0009] A final extrusion hole, a final shaping hole, and a final conical hole are also provided between the extrusion section and the second threading section. The final shaping hole is a round hole, and the final extrusion hole and the final conical hole are formed at both ends of the final shaping hole.

[0010] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0011] (1) By designing an integrated sealing plug, the assembly of cylinder parts is made faster and the errors generated during assembly are reduced;

[0012] (2) By using multiple extrusion sections in the wire hole, the wire is extruded multiple times, so that the glue fills the gap between the wire and the sealing plug body. At the same time, the glue on the surface of the wire is extruded by the extrusion section, so that the glue is evenly distributed, which improves the sealing performance between the wire and the sealing plug and prevents steam and oil from entering the equipment through the gap. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This is a front view of the overall structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0017] Figure 4 This is a partial structural diagram of region B of the thread hole in this utility model;

[0018] In the figure: 1. Sealing plug body; 11. Sealing ring; 2. Threading hole; 21. First threading part; 22. Second threading part; 23. Extrusion part; 231. Extrusion hole; 232. Shaping hole; 233. Buffer hole; 234. Final extrusion hole; 235. Final shaping hole; 236. Final conical hole; 24. Pre-forming extrusion hole; 25. Pre-forming hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a sealing plug for a cylinder insert, comprising an integrally formed sealing plug body 1. The integral sealing plug body 1 improves assembly efficiency and reduces assembly errors. The sealing plug body 1 is made of a high-temperature and oil-resistant material. Multiple wire-passing holes 2 are provided inside the sealing plug body 1 for passing wires through. Each wire-passing hole 2 includes a first wire-passing portion 21, a pressing portion 23, and a second wire-passing portion 22. The first wire-passing portion 21 and the second wire-passing portion 22 are located at opposite ends of the wire-passing hole 2. Multiple pressing portions 23 are provided between the first wire-passing portion 21 and the second wire-passing portion 22. The pressing portions 23 are used to press the wire, reducing the gap between the wire and the sealing plug inside the cylinder insert. By applying adhesive to the surface of the wire during wire insertion, the high-penetration adhesive is drawn into the space between the wire and the sealing plug body using its siphon effect, coating the surface of the wire. After the wire is inserted, the wire and adhesive... The wire and adhesive are squeezed through multiple extrusion sections 23, which distribute the adhesive evenly on the wire, improving the seal between the wire and the sealing plug. Each extrusion section 23 has annular bosses with a trapezoidal cross-section formed on its inner wall. Each extrusion section 23 includes an extrusion hole 231, a shaping hole 232, and a buffer hole 233 distributed in sequence. Both the extrusion hole 231 and the buffer hole 233 are conical holes, with the taper direction of the extrusion hole 231 opposite to that of the buffer hole 233. The extrusion hole 231 squeezes the wire to evenly coat the outer surface of the wire. The shaping hole 232 is a round hole, with the extrusion hole 231 and the buffer hole 233 formed at both ends of the shaping hole 232. The shaping hole 232 then shapes the wire, ensuring the diameter of the wire and the adhesive coating, thus improving the seal between the wire and the sealing plug body.

[0021] like Figure 3 and 4 As shown, the diameter of the other end of the extrusion hole 231 is smaller than the diameter of the other end of the buffer hole 233. The extrusion hole 231 is used to extrude the wire, which increases the pressure on the wire and the glue. The glue fills the gap between the wire and the sealing plug, preventing steam or oil from seeping into the motor through the gap between the wire and the sealing plug. This improves the sealing performance between the wire and the sealing plug, as well as the safety and stability of the equipment.

[0022] like Figure 4As shown, a pre-forming extrusion hole 24 and a pre-forming hole 25 are also provided between the first threading part 21 and the extrusion part 23. The pre-forming extrusion hole 24 is a conical hole, and the pre-forming hole 25 is a round hole. The diameter of the pre-forming extrusion hole 24 near the first threading part 21 is smaller than the diameter of the pre-forming extrusion hole near the pre-forming hole 25. The wire is pre-extruded through the pre-forming extrusion hole 24 and the pre-forming hole 25, so that the wire and the glue are initially formed under force, and the glue is wrapped on the wire, making the subsequent extrusion smoother.

[0023] Multiple sealing rings 11 are formed on the outer surface of the sealing plug body 1. The diameter of the sealing rings 11 is larger than the diameter of the sealing plug body 1. The multiple sealing rings 11 are disposed on the end of the sealing plug body 1 near the first through part 21. The sealing rings 11 enhance the sealing between the sealing plug body 1 and the cylinder housing.

[0024] Between the extrusion section 23 and the second threading section 22, a final extrusion hole 234, a final shaping hole 235, and a final conical hole 236 are also provided. The final shaping hole 235 is a round hole. The final extrusion hole 234 and the final conical hole 236 are formed at both ends of the final shaping hole 235. The final extrusion hole 234 and the final conical hole 236 are both conical holes and are arranged in opposite directions. The final extrusion hole 234 and the final shaping hole 235 perform final extrusion and shaping on the wire to ensure that the glue is evenly distributed on the surface of the wire under pressure, thereby improving the sealing performance between the wire and the sealing plug body 1. The final conical hole 236 guides the wire out.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing plug for a cylinder component, comprising an integrally formed sealing plug body, wherein the sealing plug body has multiple through holes axially formed therein, characterized in that: The threading hole includes a first threading section, a pressing section, and a second threading section. The first threading section and the second threading section are located at opposite ends of the threading hole. Multiple pressing sections are formed between the first threading section and the second threading section. The inner walls of the multiple pressing sections are formed with annular bosses with trapezoidal cross-sections, so that each pressing section includes pressing holes, shaping holes, and buffer holes distributed in sequence. The pressing holes and buffer holes are both conical holes, and the taper direction of the pressing holes is opposite to that of the buffer holes. The shaping holes are circular holes, and the pressing holes and buffer holes are formed at opposite ends of the shaping holes.

2. The sealing plug for the cylinder-penetrating component according to claim 1, characterized in that: The diameter of the other end of the extrusion hole is smaller than the diameter of the other end of the buffer hole.

3. The sealing plug for the cylinder-penetrating component according to claim 1, characterized in that: A pre-forming extrusion hole and a pre-forming hole are provided between the first threading part and the extrusion part. The pre-forming extrusion hole is a conical hole and the pre-forming hole is a round hole. The diameter of the pre-forming extrusion hole near the first threading part is smaller than the diameter of the pre-forming extrusion hole near the pre-forming hole.

4. The sealing plug for the cylinder-penetrating component according to claim 1, characterized in that: Multiple sealing rings are formed on the outer surface of the sealing plug body, and the multiple sealing rings are disposed on the ends of the sealing plug body.

5. The sealing plug for the cylinder-penetrating component according to claim 1, characterized in that: A final extrusion hole, a final shaping hole, and a final conical hole are also provided between the extrusion section and the second threading section. The final shaping hole is a round hole, and the final extrusion hole and the final conical hole are formed at both ends of the final shaping hole.

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