KR0133233B1 - Structure of fuel-pipe in a vehicle - Google Patents

Abstract

The structure of a fuel pipe for use of vehicles is characterized by forming a resin kind of a plastic material as a body(2) of one body type through an injection molding, a piped path(3) based on numerous holes type in the inside thereof, and a connection piped path(4) based on a wing shape projected to the outside of the body(2) in an ending part thereof, and in such construction, the connection piped path(4) is inserted into the inside of a piped path(3') formed in a body(2') of its opposite side for its connection, and on an outer circumference face of this combined portion, a connection bracket(8) is combined with upper/lower or right/left side portions in a wrapped shape, thereby reducing a product weight, effectuating an easy transformation on a folding portion and increasing a productivity.

Description

Vehicle fuel pipe structure

1 is a perspective view of a fuel pipe according to the present invention.

2 is an enlarged assembly perspective view of part A of FIG.

3 is a cross-sectional view of the coupling portion of the fuel pipe.

4 is a cross-sectional view taken along the line I-I of FIG.

5 is a state diagram of installing a conventional fuel pipe.

＊ Explanation of symbols on main parts of drawing

1,1 ＇: Fuel pipe 2,2＇: Body

3,3 ＇: pipeline 4: connector

5: groove 6: o-ring

7,7 ＇: Holder 8: Connecting bracket

8a: Mounting hole

The present invention relates to a structure of a fuel pipe for a vehicle, and in particular, by manufacturing a pipe made of a porous material of plastic material in place of a pipe made of steel steel pipe and installing it in a vehicle, so as to improve the weight reduction, assembly and productivity of the vehicle body. To a structure of a fuel pipe for a vehicle.

In general, a fuel pipe is installed under the vehicle body in order to deliver the fuel stored from the fuel tank to the engine, which is a steel pipe 11 manufactured by drawing and made of steel as shown in FIG. It was bent at a low angle by bending, and was gathered by two or three rows of fixing members 12 to be installed in the lower portion of the vehicle body. Here, the number of the adjustment member 12 is appropriately adjusted according to the fixed position of the steel pipe pipe 11, and the steel pipe pipe 11 is a portion (A) connected to the first bent from the fuel tank (not shown) and this It is composed of a portion (B) having a linear shape and connected to the portion (A) and a curved portion (C) connected to the portion (B) to transfer fuel to the engine (not shown). However, the fuel pipe for the vehicle made of steel pipe pipe 11 of the steel as described above has a disadvantage in that the weight of the vehicle body is increased due to the heavy weight due to the characteristics of the material and the corrosion during use between the magnetic parts, while the portion (A) and the portion As in (C), the steel pipe pipe 11 installed at the curved portion has a problem of difficulty in fabrication due to bending and excessive bending of the local rigidity. Accordingly, the present invention has been made to solve all the problems described above, by injection molding a fuel pipe made of a porous shape of plastic material, while adding the ease of manufacture and maintaining the airtightness of the connecting portion simplified form It is an object of the present invention to provide a structure of a fuel pipe for a vehicle that can be improved in productivity and assembly.

The present invention for achieving the above object, the resin is formed of a plastic body of the integral body through the injection molding, while having a porous pipe in the interior of the tip portion of the individual protruding to the outside of the body A connecting pipe is formed, and the connecting pipe is inserted into and connected to the pipe formed in the opposite body, and the connecting bracket is coupled to the outer circumferential surface of these coupling parts by wrapping it in an upper / lower or left / right part.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a fuel pipe according to the present invention, FIG. 2 is an assembled perspective view partially enlarged at a joint portion of a fuel pipe, FIG. 3 is a cross-sectional view of a coupling portion of the fuel pipe, and FIG. 4 is a line I-I of FIG. As a cross-sectional view, the present invention comprises a fuel pipe (1) made of porous phenomena formed by injection-molding resins of plastic material, as shown in the drawing, wherein the fuel pipe (1) is formed in a single body (2). The body of the other fuel pipe (1 ＇) is provided with a connecting pipe (4) of a corresponding shape, each having a porous conduit (3) and protruding to the outside of the body (2). It fits in the pipe line (3 ＇) formed in ().

Here, a groove 5 having a semicircular cross section is formed on the outer circumferential surface of the connecting socket 4 protruding from the body 2 in a single shape, and the O-ring 6 is seated in the groove 5. In this state, the corresponding pipe is inserted into the conduit 3 'in the body 2' of the fuel pipe 1 'so that airtightness is maintained.

Further, holders 7 and 7 ', which protrude to a predetermined thickness up and down, are integrally formed at the front end portions of the bodies 2 and 2', which are coupling portions of the fuel pipe 1, respectively. 1) is coupled to the holder (7) (7 ') the cross section is bent to the outside in the shape of a c-shape while the mounting bracket (8) having a mounting hole (8a) formed in the front end portion is wrapped in the mounting state The screw is fitted through the hole 8a and is mounted at a predetermined position under the vehicle body.

The connecting bracket 8 is bent in the form of wrapping in the upper / lower or left / right portions so as to be suitable for the position where the coupling portion of the fuel pipe 1 is mounted to the lower portion of the vehicle body.

Therefore, the porous fuel pipe (1) formed by injection-molding resins of the plastic material as described above can provide easy lightness and easy to go to production and bending as well as simple assembly parts. Ease of assembly by fitting can also be obtained additionally.

As described above, according to the structure of the fuel pipe for a vehicle of the present invention, in place of the conventional heavy steel pipe 11, the weight of the fuel pipe 1, which is injection-molded with plastic, is installed on the vehicle body. It can contribute to the reduction, there is an advantage that the deformation is easy even in the bent portion and there is no fear of corrosion due to long-term use.

In addition, the connection part of the fuel pipe 1 can be easily added to the assembly according to the simple type of fitting type can contribute to the increase in productivity.

Claims (2)

In the fuel pipe 1 is installed under the vehicle body to deliver the fuel stored from the fuel tank of the vehicle to the engine, the fuel pipe 1 is a synthetic resin material through a plurality of pipes (3) (3 ') To form a flow path, which is connected to the body (2) (2 '), and the connecting portion (4) forms a connecting socket (4) that separates each conduit (3) outward of the holder (7). 4) to be connected in the conduit (3 ＇) to the holder (7 ') corresponding to, and the holder (7) (7') is characterized in that the connection bracket 8 is wrapped to be fixed to the vehicle body The structure of the vehicle fuel pipe. The semicircular groove 5 is formed on the outer circumferential surface of the connecting socket 4, so that the opposing body 2 is placed in a state where the O-ring 6 is seated in the groove 5. A fuel pipe structure for a vehicle, characterized in that airtightness is maintained by being inserted into a pipe line (3 ＇).