CN215173103U - Connecting device for high-pressure oil pipe - Google Patents

Abstract

The utility model discloses a connecting device for high pressure fuel pipe relates to high pressure fuel pipe technical field. The utility model comprises a connecting pipe body; the connecting pipe body comprises a first connecting pipe and a second connecting pipe which are communicated with each other; an included angle is formed between the first connecting pipe and the second connecting pipe; the end part of the first connecting pipe and the end part of the second connecting pipe are respectively connected with a clamping pipe body, and the tail end of the clamping pipe body is fixed with a high-pressure oil pipe body; the front ends of the clamping pipe bodies are sequentially matched with a sealing element, a compression spring and a movable pipe for fixing the positions of the clamping pipe bodies; the pipe orifice of the first connecting pipe and the pipe orifice of the second connecting pipe are both provided with a pair of vertical notch grooves; a transverse channel is arranged at the bottom of the vertical notch groove. The utility model discloses a connecting pipe body, joint body, sealing member, compression spring and activity pipe's effect has solved the easy damaged oil leak of current high pressure fuel pipe department of buckling, uses the relatively poor problem of connecting piece leakproofness.

Description

Connecting device for high-pressure oil pipe

Technical Field

The utility model belongs to the technical field of high pressure fuel pipe, especially, relate to a connecting device for high pressure fuel pipe.

Background

With the continuous development of engine technology, the application range of the high-pressure oil pipe is wider, and the high-pressure oil pipe is a component of a high-pressure oil way. The high-pressure oil pipe generally needs to bear certain oil pressure, has certain fatigue strength, ensures the sealing requirement of a pipeline, and can bear the oil pressure required in the running process of an engine. Otherwise, once the high-pressure oil pipe is broken, fuel oil can be splashed, and the personal and property safety in the using process can not be ensured.

In the actual use process, the high-pressure oil pipe is easy to break and leak oil when the pipe wall is bent, multiple welding repair is generally needed, however, the welding difficulty is high, and oil leakage can be performed again for a long time after repair every time. Also some solutions are through being provided with the connector respectively with two oil pipes, then connect through connecting the pipe fitting, however this kind of connection pipe fitting use the leakproofness not good after a period, and the dismouting is inconvenient during the maintenance moreover.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connecting device for high pressure fuel pipe through the effect of connecting pipe body, joint body, sealing member, compression spring and expansion pipe, has solved the easy damaged oil leak of current high pressure fuel pipe department of buckling, uses the relatively poor problem of connecting piece leakproofness.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a connecting device for a high-pressure oil pipe, which comprises a connecting pipe body; the connecting pipe body comprises a first connecting pipe and a second connecting pipe which are communicated with each other; an included angle is formed between the first connecting pipe and the second connecting pipe; the end parts of the first connecting pipe and the second connecting pipe are respectively connected with a clamping pipe body, and the tail end of the clamping pipe body is fixed with a high-pressure oil pipe body; the front ends of the clamping pipe bodies are sequentially matched with a sealing element, a compression spring and a movable pipe for fixing the positions of the clamping pipe bodies; the pipe orifice of the first connecting pipe and the pipe orifice of the second connecting pipe are both provided with a pair of vertical notch grooves; and a transverse channel is formed at the bottom of the vertical notch groove.

Further, the included angle between the first connecting pipe and the second connecting pipe ranges from 60 degrees to 90 degrees.

Furthermore, a clamping groove is formed in the top wall of the inner top wall at the tail end of the transverse channel; the front end of the clamping pipe body is inwards contracted to form a positioning pipe matched with the first connecting pipe or the second connecting pipe; and a pair of limiting columns matched with the vertical notch grooves are fixed on the peripheral side surfaces of the positioning pipes.

Furthermore, a retainer ring matched with the compression spring is fixed on the inner walls of the first connecting pipe and the second connecting pipe.

Furthermore, external threads are formed on the outer side surface of the first connecting pipe and the outer side surface of the second connecting pipe, and the external threads are close to the transverse channel; the external thread is matched with a movable pipe.

Furthermore, the inner wall of the movable pipe is provided with an internal thread matched with the external thread; limiting grooves matched with the limiting columns are uniformly distributed on the movable pipe along the opening of the movable pipe; the limiting groove is of a smooth semicircular groove structure.

Further, the seal comprises an annular gasket; a first rubber sealing pipe matched with the inner wall of the positioning pipe is fixed on one side of the annular gasket; and a second sealing rubber tube is fixed on the other side of the annular gasket.

The utility model discloses following beneficial effect has:

1. the utility model discloses a be a contained angle between first connecting pipe and the second connecting pipe, connect the high pressure fuel pipe body of equidirectional respectively, avoid the direct bending of high pressure fuel pipe body to cause the damage easily.

2. The utility model discloses a first connecting pipe and second connecting pipe inner wall all are fixed with one with compression spring complex retaining ring, go into preset position with spacing post top through compression spring's effect and fix, fall earlier during the dismantlement and fall down the expansion pipe, then exert oneself and extrude the joint body for spacing post takes off with the draw-in groove pine, then rotatory, extract can, easy dismounting is safe and reliable again simultaneously.

3. The utility model discloses a movable tube has along its opening part equipartition with spacing post complex spacing groove, through compression spring's effect with spacing post top income draw-in groove in, rotatory movable tube is fixed with spacing post joint until movable tube or spacing groove to further prevent that the joint body is not hard up to cause the oil leak, further improve the security performance.

4. The utility model discloses a ring packing circle opposite side is fixed with the sealed rubber tube of second, and the sealed rubber tube of second stretches into the retaining ring inner wall fixed, through the setting of first sealed rubber tube and the sealed rubber tube of second for it is inseparabler to be connected between joint body and first connecting pipe or the second connecting pipe, is difficult to reveal oil, and the leakproofness is better.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of a connection device for a high-pressure oil pipe according to the present invention;

FIG. 2 is an assembled schematic view of FIG. 1;

FIG. 3 is a schematic structural view of the connecting tube body;

FIG. 4 is a schematic view of the internal structure of the connecting tube body;

FIG. 5 is a schematic view of the structure of the clamping tube body;

FIG. 6 is a schematic view of the seal configuration;

FIG. 7 is a schematic structural view of a movable tube;

in the drawings, the components represented by the respective reference numerals are listed below:

1-connecting pipe body, 2-clamping pipe body, 3-high-pressure oil pipe body, 4-sealing element, 5-compression spring, 6-movable pipe, 101-first connecting pipe, 102-second connecting pipe, 103-vertical notch groove, 104-transverse groove channel, 105-clamping groove, 106-external thread, 107-check ring, 201-positioning pipe, 202-limit column, 401-annular gasket, 402-first rubber sealing pipe, 403-second sealing rubber pipe, 601-internal thread, 602-limit groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention relates to a connecting device for a high pressure oil pipe, which comprises a connecting pipe body 1; the connecting pipe body 1 comprises a first connecting pipe 101 and a second connecting pipe 102 which are communicated with each other; an included angle is formed between the first connecting pipe 101 and the second connecting pipe 102, and the high-pressure oil pipe bodies 3 in different directions are connected respectively, so that the high-pressure oil pipe bodies 3 are prevented from being directly bent and easily damaged; the end part of the first connecting pipe 101 and the end part of the second connecting pipe 102 are respectively connected with a clamping pipe body 2, and the tail end of the clamping pipe body 2 is fixed with a high-pressure oil pipe body 3; the front ends of the clamping pipe bodies 2 are sequentially matched with a sealing piece 4, a compression spring 5 and a movable pipe 6 for fixing the clamping pipe bodies 2; the pipe orifice of the first connecting pipe 101 and the pipe orifice of the second connecting pipe 102 are both provided with a pair of vertical notch grooves 103; the bottom of the vertical notch groove 103 is provided with a transverse groove 104.

As shown in fig. 3-4, an included angle 102 between the first connecting pipe 101 and the second connecting pipe 102 ranges from 60 ° to 90 °, and is set as required, so that the high-pressure oil pipe body 3 in the vertical direction can be conveniently connected when the included angle is set to 90 °, and the high-pressure oil pipe body 3 is prevented from being bent and easily broken.

As shown in fig. 5, the inner top wall of the end of the transverse channel 104 is provided with a slot 105; the front end of the clamping pipe body 2 is inwardly contracted to form a positioning pipe 201 matched with the first connecting pipe 101 or the second connecting pipe 102, so that clamping is facilitated; a pair of limiting columns 202 matched with the vertical notch grooves 103 are fixed on the peripheral side surface of the positioning tube 201.

As shown in fig. 3-4, the inner walls of the first connecting pipe 101 and the second connecting pipe 102 are fixed with a retaining ring 107 matched with the compression spring 5, the limiting column 202 is pushed into a preset position for fixing under the action of the compression spring 5, the movable pipe 6 is firstly removed during disassembly, and then the clamping pipe body 2 is extruded forcefully, so that the limiting column 202 and the clamping groove 105 are loosened and then rotated and pulled out, and the disassembly and the assembly are convenient, and the safety and the reliability are also realized.

As shown in fig. 3-4, the outer side surfaces of the first connecting pipe 101 and the second connecting pipe 102 are both provided with external threads 106, and the external threads 106 are close to the transverse channel 104; the external thread 106 is matched with a movable pipe 6 for further limiting the movement of the clamping pipe body 2 and improving the safety performance of the clamping pipe body.

As shown in fig. 7, the inner wall of the movable tube 6 is provided with an internal thread 601 matching with the external thread 106; the movable tube 6 is uniformly provided with limit grooves 602 matched with the limit posts 202 along the opening thereof, the limit posts 202 are inserted along the vertical notch grooves 103 during installation, the tube body 2 is rotationally clamped along the transverse channel 104 after reaching the bottom until reaching the opening of the clamping groove 105, the limit posts 202 are jacked into the clamping groove 105 under the action of the compression spring 5, and the movable tube 6 is rotated until the movable tube 6 or the limit grooves 602 are fixedly clamped with the limit posts 202, so that oil leakage caused by loosening of the clamping tube body 2 is further prevented, and the safety performance is further improved; the limiting groove 602 is a smooth semicircular groove structure.

As shown in fig. 6, the sealing member 4 includes an annular gasket 401; a first rubber sealing pipe 402 matched with the inner wall of the positioning pipe 201 is fixed on one side of the annular gasket 401; the other side of the annular gasket 401 is fixed with a second sealing rubber tube 403, the second sealing rubber tube 403 extends into the inner wall of the retainer ring 107 to be fixed, and the first sealing rubber tube 402 and the second sealing rubber tube 403 are arranged, so that the connection between the clamping connection pipe body 2 and the first connecting pipe 101 or the second connecting pipe 102 is tighter, oil is not easy to leak, and the sealing performance is better.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. A connecting device for a high-pressure oil pipe comprises a connecting pipe body (1); the method is characterized in that:

the connecting pipe body (1) comprises a first connecting pipe (101) and a second connecting pipe (102) which are communicated with each other; an included angle is formed between the first connecting pipe (101) and the second connecting pipe (102);

the end part of the first connecting pipe (101) and the end part of the second connecting pipe (102) are respectively connected with a clamping pipe body (2), and the tail end of the clamping pipe body (2) is fixed with a high-pressure oil pipe body (3); the front ends of the clamping pipe bodies (2) are sequentially matched with a sealing piece (4), a compression spring (5) and a movable pipe (6) for fixing the clamping pipe bodies (2);

the pipe orifice of the first connecting pipe (101) and the pipe orifice of the second connecting pipe (102) are both provided with a pair of vertical notch grooves (103); the bottom of the vertical notch groove (103) is provided with a transverse channel (104).

2. A connection device for a high pressure oil conduit according to claim 1, characterized in that the angle (102) between the first connection pipe (101) and the second connection pipe (102) is in the range of 60 ° -90 °.

3. The connecting device for the high-pressure oil pipe as claimed in claim 1, wherein the inner top wall of the tail end of the transverse channel (104) is provided with a clamping groove (105);

the front end of the clamping pipe body (2) is inwards contracted, and a positioning pipe (201) matched with the first connecting pipe (101) or the second connecting pipe (102) is formed; and a pair of limiting columns (202) matched with the vertical notch grooves (103) are fixed on the peripheral side surface of the positioning tube (201).

4. A connection device for a high-pressure oil pipe according to claim 1 or 3, characterized in that a retainer ring (107) engaged with the compression spring (5) is fixed on the inner wall of each of the first connection pipe (101) and the second connection pipe (102).

5. The connecting device for the high-pressure oil pipe as claimed in claim 3, wherein the outer side surface of the first connecting pipe (101) and the outer side surface of the second connecting pipe (102) are both provided with external threads (106), and the external threads (106) are close to the transverse channel (104);

the external thread (106) is matched with a movable pipe (6).

6. The connecting device for the high-pressure oil pipe as claimed in claim 5, wherein the inner wall of the movable pipe (6) is provided with an internal thread (601) matched with the external thread (106); limiting grooves (602) matched with the limiting columns (202) are uniformly distributed along the opening of the movable tube (6);

the limiting groove (602) is of a smooth semicircular groove structure.

7. A connection device for a high pressure oil pipe according to claim 3, characterized in that the seal (4) comprises an annular gasket (401); a first rubber sealing pipe (402) matched with the inner wall of the positioning pipe (201) is fixed on one side of the annular gasket (401); and a second sealing rubber tube (403) is fixed on the other side of the annular gasket (401).

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