CN217927805U

CN217927805U - High pressure resistant high pressure fuel pipe

Info

Publication number: CN217927805U
Application number: CN202222183213.5U
Authority: CN
Inventors: 沈王振; 胡建平; 张雪军
Original assignee: Haiyan Hengtai Machinery Co ltd
Current assignee: Haiyan Hengtai Machinery Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-11-29
Anticipated expiration: 2032-08-18

Abstract

The utility model discloses a high pressure resistant high pressure fuel pipe, including rubber tube, fixed cover, connecting pipe, the both ends of rubber tube all overlap and have a fixed cover, and every is fixed sheathe in and all has a connecting pipe, fixed cover is equipped with the round barrier ring on inside, and the barrier ring supports the tip of rubber tube, be equipped with the internal thread in the fixed cover, the internal thread is located keeping away from rubber tube side of barrier ring, the connecting pipe comprises consecutive first body, second body, third body and fourth body, is equipped with the first external screw thread with internal thread matched with on the second body, and the second body is twisted on fixed sheathe in, and in first body inserts fixed cover, the pipe wall of tight rubber tube is pressed from both sides to first body and fixed cover, the third body supports the tip of fixed cover, is equipped with the second external screw thread on the fourth body. The utility model discloses a press from both sides the pipe wall of tight rubber tube with first body and fixed cover for it is fixed firm, difficult seepage between fixed cover and connecting pipe and the rubber tube.

Description

High pressure resistant high pressure fuel pipe

[ technical field ] A

The utility model relates to a technical field of connecting pipe, especially high pressure fuel pipe's technical field.

[ background ] A method for producing a semiconductor device

High pressure tubing often contains connections for connection to other lines. The junction between connecting portion and the high pressure fuel pipe body often is the place of the easiest sound production seepage of high pressure fuel pipe, and breaks easily or takes off between connecting portion and the high pressure fuel pipe body.

[ Utility model ] A method for manufacturing a semiconductor device

The utility model aims at solving the problem in the prior art, providing a high pressure resistant high pressure fuel pipe, can make the difficult seepage of high pressure fuel pipe.

In order to realize the above-mentioned purpose, the utility model provides a high pressure resistant oil pipe, including rubber tube, fixed cover, connecting pipe, the both ends of rubber tube all overlap and have a fixed cover, and every is fixed sheathe in and all has a connecting pipe, fixed cover is equipped with the round barrier ring on inside, and the barrier ring supports the tip of rubber tube, be equipped with the internal thread in the fixed cover, the internal thread is located keeping away from the rubber tube side of barrier ring, the connecting pipe comprises consecutive first body, second body, third body and fourth body, is equipped with the first external screw thread with internal thread matched with on the second body, and the second body is twisted on fixed sheathes in, and in first body inserted fixed cover, the pipe wall of tight rubber tube is pressed from both sides to first body and fixed cover, the third body supports the tip of fixed cover, is equipped with the second external screw thread on the fourth body.

Preferably, the inner wall of the fixing sleeve is provided with a plurality of circles of first convex rings, the first convex rings and the internal thread are located on different sides of the stop ring, the outer wall of the first pipe body is provided with a plurality of circles of second convex rings, the fixing sleeve is externally smooth and cylindrical before being extruded, the fixing sleeve is embedded into the pipe wall of the rubber pipe through the first convex rings and the second convex rings after being extruded, the fixing sleeve is externally provided with a plurality of convex strips parallel to the axis of the fixing sleeve after being extruded, and the external diameter of the fixing sleeve at the section where the internal thread and the stop ring are located after being extruded is larger than the external diameter of other parts of the fixing sleeve.

Preferably, the fixing sleeve is sleeved with a protection spring, and a part of the protection spring is sleeved on the rubber tube.

Preferably, a metal woven net layer is arranged inside the pipe wall of the rubber pipe.

Preferably, the outer part of the third pipe body is in a regular hexagonal prism shape, and the second pipe body and the fourth pipe body do not exceed the edge of the third pipe body.

The utility model has the advantages that: the utility model clamps the pipe wall of the rubber pipe by the first pipe body and the fixed sleeve, so that the fixed sleeve, the connecting pipe and the rubber pipe are firmly fixed and are not easy to leak; the arrangement of the protection spring ensures that the rubber tube is not easy to break at the fixed sleeve due to overlarge folding angle; the arrangement of the metal woven net layer enables the rubber tube to have good strength and to bear larger pressure.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a front view of the high pressure resistant high pressure oil pipe of the present invention.

In the figure: the device comprises a rubber tube 1, a fixed sleeve 2, a connecting tube 3, a protective spring 4, a stop ring 20, a convex strip 21, a first tube 31, a second tube 32, a third tube 33 and a fourth tube 34.

[ detailed description ] embodiments

Referring to fig. 1, the utility model relates to a high pressure resistant high pressure oil pipe, which comprises a rubber pipe 1, a fixed sleeve 2 and a connecting pipe 3, wherein two ends of the rubber pipe 1 are sleeved with a fixed sleeve 2, each fixed sleeve 2 is connected with a connecting pipe 3, a circle of stop ring 20 is arranged inside the fixed sleeve 2, the stop ring 20 supports against the end part of the rubber pipe 1, an internal thread is arranged in the fixed sleeve 2, the internal thread is positioned at the side of the stop ring 20 far away from the rubber pipe 1, the connecting pipe 3 is composed of a first pipe body 31, a second pipe body 32, a third pipe body 33 and a fourth pipe body 34 which are connected in sequence, a first external thread matched with the internal thread is arranged on the second pipe body 32, the second pipe body 32 is screwed on the fixed sleeve 2, the first pipe body 31 is inserted into the fixed sleeve 2, the first pipe body 31 and the fixed sleeve 2 clamp the pipe wall of the rubber pipe 1, the third pipe body 33 supports against the end part of the fixed sleeve 2, a fourth pipe body 34 is provided with a second external thread, the inner wall of the fixing sleeve 2 is provided with a plurality of circles of first convex rings, the first convex rings and the internal thread are positioned at different sides of the stop ring 20, the outer wall of the first pipe body 31 is provided with a plurality of circles of second convex rings, the outer part of the fixing sleeve 2 before extrusion is in a smooth cylindrical shape, the first convex rings and the second convex rings are embedded into the pipe wall of the rubber pipe 1 after extrusion of the fixing sleeve 2, the fixing sleeve 2 after extrusion is externally provided with a plurality of convex strips 21 which are parallel to the axis of the fixing sleeve 2, the outer diameter of the internal thread and the section of the stop ring 20 of the fixing sleeve 2 after extrusion is larger than the outer diameter of other parts of the fixing sleeve 2, the fixing sleeve 2 is sleeved with a protection spring 4, a part of the protection spring 4 is sleeved on the rubber pipe 1, a metal woven net layer is arranged inside the pipe wall of the rubber pipe 1, the outer part of the third pipe body 33 is in a regular hexagonal prism shape, neither the second tube 32 nor the fourth tube 34 extends beyond the edge of the third tube 33.

The utility model discloses the working process:

in the working process of the high-pressure-resistant high-pressure oil pipe, the first pipe body 31 and the fixed sleeve 2 clamp the pipe wall of the rubber pipe 1, so that the fixed sleeve 2, the connecting pipe 3 and the rubber pipe 1 are firmly fixed and are not easy to leak; the arrangement of the protection spring 4 ensures that the rubber tube 1 is not easy to break at the fixed sleeve 2 because of overlarge break angle; the arrangement of the metal woven net layer enables the rubber tube 1 to have good strength and to bear larger pressure.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any is right the utility model discloses scheme after simply changing all belongs to the protection scope of the utility model.

Claims

1. A high pressure resistant high pressure fuel pipe which characterized in that: including rubber tube (1), fixed cover (2), connecting pipe (3), the both ends of rubber tube (1) all overlap and have a fixed cover (2), all link on every fixed cover (2) one connecting pipe (3), be equipped with round barrier ring (20) on fixed cover (2) inside, barrier ring (20) support the tip of rubber tube (1), be equipped with the internal thread in fixed cover (2), the internal thread is located keeping away from rubber tube (1) side of barrier ring (20), connecting pipe (3) are equipped with on second body (32) with the first external screw thread of internal thread matched with by consecutive first body (31), second body (32), third body (33) and fourth body (34) and constitute, and second body (32) are twisted on fixed cover (2), and first body (31) insert in fixed cover (2), and the pipe wall of fixed cover (2) clamp rubber tube (1) is pressed from both sides to first body (31) and fixed cover (2), the fixed cover (2) of third body (33) is supported the tip of fixed cover (2), is equipped with the second external screw thread on fourth body (34).

2. The high pressure resistant high pressure oil pipe of claim 1, wherein: be equipped with the first bulge loop of a plurality of rings on the inner wall of fixed cover (2), first bulge loop is located the not equidistance of barrier ring (20) with the internal thread, be equipped with a plurality of rings second bulge loop on first body (31) outer wall, fixed cover (2) outside before not passing the extrusion is smooth cylindrical, fixed cover (2) are in the pipe wall of first bulge loop after the extrusion and second bulge loop embedding rubber tube (1), fixed cover (2) are outside after the extrusion to form a plurality of sand grips (21) parallel with fixed cover (2) axis, the external diameter of fixed cover (2) internal thread and barrier ring (20) place section is greater than the external diameter of fixed cover (2) other parts after the extrusion.

3. A high pressure resistant high pressure oil pipe as claimed in claim 1, wherein: the protective spring (4) is sleeved on the fixed sleeve (2), and one part of the protective spring (4) is sleeved on the rubber tube (1).

4. A high pressure resistant high pressure oil pipe as claimed in claim 1, wherein: and a metal woven net layer is arranged inside the pipe wall of the rubber pipe (1).

5. A high pressure resistant high pressure oil pipe as claimed in claim 1, wherein: the outer part of the third pipe body (33) is in a regular hexagonal prism shape, and the second pipe body (32) and the fourth pipe body (34) do not exceed the edge of the third pipe body (33).