CN211821135U

CN211821135U - Pipe joint for plug-in hybrid electric vehicle engine

Info

Publication number: CN211821135U
Application number: CN201922208417.8U
Authority: CN
Inventors: 方博
Original assignee: Shenyang Aerospace Mitsubishi Motors Engine Manufacturing Co Ltd
Current assignee: Shenyang Aerospace Mitsubishi Motors Engine Manufacturing Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-30
Anticipated expiration: 2029-12-11

Abstract

The utility model provides a be used for inserting electric formula hybrid vehicle engine coupling, includes the steel pipe, the coupling, the midbody, boss hole at the ring flange of coupling sets up the steel pipe, set up a bolt hole on the ring flange of coupling, set up first recess and second recess on the joint of coupling, set up first O type circle and second O type circle in first recess and second recess respectively, set up the midbody in the ring flange lower part of coupling, it is fixed as an organic whole with the midbody at the ring flange of coupling to pass the bolt hole with the bolt. The utility model discloses be connected the hole of engine water pipe or oil pipe and engine part midbody and sealed, the sealing mode of adoption is O type circle sealed, and the outside is fixed with taking bolt hole ring flange with pipe and midbody, realizes when pipe diameter and aperture change in certain extent, connects the design change simple, each other does not influence, and the material adopts carbon steel, stainless steel, is applied to among the automobile engine technical field.

Description

Pipe joint for plug-in hybrid electric vehicle engine

Technical Field

The utility model relates to a be used for inserting electric formula hybrid vehicle engine coupling among the automobile engine technical field.

Background

At present, in the design work of an engine, a cooling system and a lubricating system of the engine need to use water pipes or oil pipes to enable cooling liquid or lubricating oil to pass through various systems and parts. The connection sealing mode between the pipe and the part intermediate body is the key point in the design, and the quality of the connection mode design is the key point of whether the connection part can be completely sealed and liquid can smoothly run in the engine when the engine runs. The pipe connection sealing modes of the existing engine products are mainly divided into three types: the first is a connection method using a ball joint hollow bolt; secondly, connecting the two hard pipes by adopting a hose and hose clamp mode; and thirdly, sealing by using an O-shaped ring and a flange plate. The design is mainly developed and innovated aiming at the third connection mode. The conventional pipe joint finds the following disadvantages in the design process: the existing pipe joint is designed on the basis that the outer diameter of the pipe is much smaller than the inner diameter of the hole, and when the outer diameter of the pipe is close to the inner diameter of the hole, the wall thickness of the contact part of the joint and an O-shaped ring cannot be guaranteed, so that the design defect is caused. Therefore, it is an urgent need to develop a new pipe joint for a plug-in hybrid vehicle engine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for inserting electric formula hybrid vehicle engine coupling, this utility model's design theory is for adding the boss in the coupling outside to make external diameter of pipe and flange joint department diameter stagger, satisfy the product user demand under the dangerous condition of no design failure. This design mode is convenient for design change simultaneously, when the pipe external diameter of connecting and hole internal diameter change, only need change the numerical value of boss internal diameter and joint external diameter, alright satisfy new design demand, when the pipe external diameter is far greater than the hole internal diameter, need change the ring flange size.

The purpose of the utility model is realized like this: the utility model provides a be used for inserting electric formula hybrid vehicle engine coupling, includes the steel pipe, the coupling, the midbody, boss hole at the ring flange of coupling sets up the steel pipe, set up a bolt hole on the ring flange of coupling, set up first recess and second recess on the joint of coupling, set up first O type circle and second O type circle in first recess and second recess respectively, set up the midbody in the ring flange lower part of coupling, it is fixed as an organic whole with the midbody at the ring flange of coupling to pass the bolt hole with the bolt.

The main point of the utility model lies in its structure. The working principle and the installation method are that the pipe joint and the steel pipe are brazed, the pipe joint and the intermediate body adopt a 'quick insertion' mode, the pipe joint can be inserted into the intermediate body by directly exerting radial force, a flange plate of the pipe joint and the end face of the intermediate body are fixed through a bolt, and the pipe joint and the intermediate body 3 are radially sealed through the first O-shaped ring and the second O-shaped ring, so that liquid in the steel pipe stably flows into the intermediate body and cannot leak.

Compared with the prior art, the pipe joint for the plug-in hybrid electric vehicle engine has the advantages that an engine water pipe or an engine oil pipe is connected and sealed with a hole of an engine part intermediate body, the sealing mode is O-shaped ring sealing, the pipe and the intermediate body are fixed by a flange plate with a bolt hole on the outside, when the pipe diameter and the hole diameter change within a certain range, the joint design is simple to change and does not affect each other, the pipe joint is used as a joint design template and is suitable for connection of the end parts of all engines, the pipe joint can be formed by adopting a casting or turning method, the material is carbon steel, stainless steel and the like, and the pipe joint can be widely applied to the technical field.

Drawings

The present invention will be described in detail with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a perspective view of the present invention.

Detailed Description

Referring to the attached drawings, the pipe joint for the plug-in hybrid electric vehicle engine comprises a steel pipe 1, a pipe joint 2 and an intermediate body 3, wherein the steel pipe 1 is arranged in an inner hole of a boss 2-8 of a flange plate B of the pipe joint, a bolt hole 2-1 is formed in the flange plate 2-2 of the pipe joint 2, a first groove 2-5 and a second groove 2-6 are formed in the joint 2-3 of the pipe joint 2, a first O-shaped ring 2-4 and a second O-shaped ring 2-7 are respectively arranged in the first groove 2-5 and the second groove 2-6, the intermediate body 3 is arranged on the lower portion of the flange plate 2-2 of the pipe joint 2, and bolts penetrate through the bolt holes 2-1 to fix the flange plate 2-2 of the pipe joint 2 and the intermediate body 3 into a.

The working principle and the assembling method for the plug-in hybrid electric vehicle engine pipe joint are that the pipe joint 2 and a steel pipe 1 are brazed, the pipe joint 2 and an intermediate body 3 are in a 'quick plug' mode, the pipe joint 2 can be inserted into the intermediate body 3 by directly exerting radial force, a flange 2-2 of the pipe joint 2 and the end face of the intermediate body 3 are fixed through a bolt, the pipe joint 2 and the intermediate body 3 are radially sealed through a first O-shaped ring 2-4 and a second O-shaped ring 2-7, and liquid in the steel pipe 1 stably flows into the intermediate body 3 without leakage.

Claims

1. The utility model provides a be used for inserting electric formula hybrid vehicle engine coupling, includes steel pipe, coupling, midbody, its characterized in that: the steel pipe is arranged in an inner hole of a boss of a flange plate of the pipe joint, a bolt hole is formed in the flange plate of the pipe joint, a first groove and a second groove are formed in the joint of the pipe joint, a first O-shaped ring and a second O-shaped ring are respectively arranged in the first groove and the second groove, an intermediate body is arranged on the lower portion of the flange plate of the pipe joint, and bolts penetrate through the bolt holes to fix the flange plate of the pipe joint and the intermediate body into a whole.