CN212273315U

CN212273315U - High-pressure oil pipe joint of detachable excavator

Info

Publication number: CN212273315U
Application number: CN202020893574.7U
Authority: CN
Inventors: 周建兴
Original assignee: Changzhou Kaiping Machinery Co Ltd
Current assignee: Changzhou Kaiping Machinery Co Ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-01
Anticipated expiration: 2030-05-25

Abstract

The utility model relates to a high pressure fuel pipe technical field just discloses a detachable high pressure fuel pipe who digs machine connects, including first joint and second joint, first joint right-hand member threaded connection has the second to connect, the first solid fixed ring of outside difference fixedly connected with and the solid fixed ring of second of first joint and second joint, first fixed ring and the solid fixed ring's of second quantity are seted up first fixed orifices and the second fixed orifices of a plurality of respectively to the solid fixed ring's of first fixed ring and second right-hand member, the inside sliding connection of second fixed orifices has the fixed pin that runs through first fixed orifices, the inside of fixed pin is pegged graft and is had the U-shaped spacer pin that is located first solid fixed ring left side. This detachable high pressure fuel pipe who digs machine connects possesses the advantage that connects firmly, has solved among the prior art and has generally adopted the bolt spiral to connect to high pressure fuel pipe's butt joint, and at oil pipe vibrations in-process, the external screw thread of bolt easily wears out, and the junction is easily not hard up to lead to the problem of oil leak accident.

Description

High-pressure oil pipe joint of detachable excavator

Technical Field

The utility model relates to a high pressure fuel pipe technical field specifically is a detachable high pressure fuel pipe who digs machine connects.

Background

The high-pressure oil pipe is a component of a high-pressure oil circuit, the oil pipe is required to bear certain oil pressure and have certain fatigue strength, and the sealing requirement of a pipeline is ensured.

The high-pressure oil pipe is generally used in the fields of excavators, loaders, side-tipping vehicles, hydraulic power assistance, hydraulic supports, cement delivery pipes, agricultural irrigation rubber pipes, engineering machinery hydraulic oil pipes, submarine natural gas delivery, oil transportation and the like, and on the equipment, the high-pressure oil pipe often needs to bear great vibration, so that oil leakage accidents at the joint of the high-pressure oil pipe are easily caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a detachable high pressure fuel pipe who digs machine connects possesses to connect advantages such as firm, has solved among the prior art to high pressure fuel pipe's butt joint generally adopt bolt spiral to connect, at oil pipe vibrations in-process, the easy wearing and tearing of external screw thread of bolt, and the junction is easy not hard up to lead to the problem of oil leak accident.

(II) technical scheme

For the purpose that realizes the above-mentioned firm connection, the utility model provides a following technical scheme: a high-pressure oil pipe joint of a detachable excavator comprises a first joint and a second joint, wherein the right end of the first joint is in threaded connection with the second joint, the outer parts of the first joint and the second joint are respectively and fixedly connected with a first fixing ring and a second fixing ring, the right ends of the first fixing ring and the second fixing ring are respectively provided with a plurality of first fixing holes and a plurality of second fixing holes, the inner part of each second fixing hole is in sliding connection with a fixing pin penetrating through the first fixing hole, the inner part of each fixing pin is inserted with a U-shaped limiting pin positioned at the left side of the first fixing ring, the outer part of the second joint is inserted with an oil pipe, the right end of the second joint is fixedly connected with a plurality of connecting blocks, the right ends of the connecting blocks are respectively and rotatably connected with a clamping rod, and reset springs positioned at the inner sides of the connecting blocks are respectively and fixedly connected between the left ends of the clamping rods and the second joint, and the external thread of the second joint is connected with a first fixed sleeve positioned outside the oil pipe.

Preferably, the second joint includes connecting pipe and second fixed sleeve, the left end fixedly connected with second fixed sleeve of connecting pipe, first screw thread has been seted up to the outside of first joint, the first screw hole with first screw thread looks adaptation is seted up to the inboard of second fixed sleeve, the equal fixedly connected with sealing washer in right-hand member and the left end of second fixed sleeve of first joint.

Preferably, a plurality of first fixed orifices is annular equidistance and distributes in the left end of first solid fixed ring, a plurality of the second fixed orifices is annular equidistance and distributes in the left end of the solid fixed ring of second, the quantity of first fixed orifices is the same with the quantity of second fixed orifices, and a plurality of first fixed orifices respectively with a plurality of the second fixed orifices is coaxial.

Preferably, the number of fixed pins is two, and two the fixed pins are the symmetric distribution, the right-hand member fixedly connected with stopper of fixed pin.

Preferably, the number of the external fixedly connected with of second joint is a plurality of and is located the inboard anti-skidding skewed tooth of oil pipe, a plurality of the connecting block is annular equidistance and distributes.

Preferably, the right-hand member of connecting block has seted up the mounting groove, fixedly connected with runs through the pivot of pressing from both sides tight pole in the mounting groove, a plurality of the inboard equal fixedly connected with quantity of pressing from both sides tight skewed tooth that presss from both sides tight pole is a plurality of.

(III) advantageous effects

Compared with the prior art, the utility model provides a detachable high pressure fuel pipe who digs machine connects possesses following beneficial effect:

when the high-pressure oil pipe joint of the detachable excavator is used, the first fixing sleeve is firstly sleeved outside an oil pipe, then the oil pipe is sleeved outside the second joint, the first fixing sleeve is rotated to enable the first fixing sleeve to tightly press the oil pipe and be fixed with the second joint, then the second joint is fixed with the first joint through threads, then the fixing pin penetrates through the second fixing hole and the first fixing hole, then the U-shaped limiting pin is inserted into the fixing pin, through the arrangement of the clamping rod and the reset spring, when the first fixing sleeve is screwed, the left end of the first fixing sleeve extrudes the clamping rod to enable the clamping rod to extrude the oil pipe, through the arrangement of the clamping inclined teeth outside the clamping rod, the anti-skidding inclined teeth outside the second joint are matched, the friction force between the oil pipe and the second joint is increased, so that the stability of the connection between the oil pipe and the second joint is improved, through the arrangement of the first fixing ring, the second fixing ring and the fixing pin, after first joint and second connect fixedly, just can prevent through fixed pin, first fixed orifices and second fixed orifices to rotate between first joint and the second joint, prevent that the screw thread is not hard up, improved the stability of connecting, through above setting, possess the advantage of connecting firmly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the oil pipe fixing device comprises a first joint 1, a second joint 2, a first fixing ring 3, a second fixing ring 4, a first fixing hole 5, a second fixing hole 6, a fixing pin 7, a U-shaped limiting pin 8, an oil pipe 9, a connecting block 10, a clamping rod 11, a reset spring 12 and a first fixing sleeve 13.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a high-pressure oil pipe joint of a detachable excavator comprises a first joint 1 and a second joint 2, the right end of the first joint 1 is connected with the second joint 2 through a thread, the second joint 2 comprises a connecting pipe and a second fixing sleeve, the left end of the connecting pipe is fixedly connected with the second fixing sleeve, the outer portion of the first joint 1 is provided with a first thread, the inner side of the second fixing sleeve is provided with a first threaded hole matched with the first thread, the right end of the first joint 1 and the left end of the second fixing sleeve are both fixedly connected with a sealing ring, the outer portions of the first joint 1 and the second joint 2 are respectively and fixedly connected with a first fixing ring 3 and a second fixing ring 4, the right ends of the first fixing ring 3 and the second fixing ring 4 are respectively provided with a plurality of first fixing holes 5 and a plurality of second fixing holes 6, the plurality of first fixing holes 5 are annularly and equidistantly distributed at the left end of the first fixing ring 3, a plurality of second fixing holes 6 are distributed at the left end of the second fixing ring 4 in an annular equidistance way, the number of the first fixing holes 5 is the same as that of the second fixing holes 6, and a plurality of first fixing holes 5 are respectively coaxial with a plurality of second fixing holes 6, the inside of the second fixing holes 6 is connected with two fixing pins 7 which penetrate through the first fixing holes 5 in a sliding way, the number of the fixing pins 7 is two, the two fixing pins 7 are distributed symmetrically, the right end of the fixing pins 7 is fixedly connected with a limiting block, a U-shaped limiting pin 8 which is positioned at the left side of the first fixing ring 3 is inserted inside the fixing pins 7, an oil pipe 9 is inserted outside the second joint 2, a plurality of connecting blocks 10 are fixedly connected at the right end of the second joint 2, a plurality of anti-skid oblique teeth which are positioned at the inner side of the oil pipe 9 are fixedly connected at the outside of the second joint 2, a plurality of connecting, the right-hand member of a plurality of connecting block 10 all rotates and is connected with clamping rod 11, the mounting groove has been seted up to the right-hand member of connecting block 10, fixedly connected with runs through clamping rod 11's pivot in the mounting groove, the equal fixedly connected with quantity in inboard of a plurality of clamping rod 11 is the tight skewed tooth of clamp of a plurality of, equal fixedly connected with is located the inboard reset spring 12 of a plurality of connecting block 10 between the left end of a plurality of clamping rod 11 and the second joint 2, the outside threaded connection of second joint 2 has the first fixing sleeve 13 that is located oil pipe 9 outside.

In conclusion, when the high-pressure oil pipe joint of the detachable excavator is used, the first fixing sleeve 13 is firstly sleeved outside the oil pipe 9, then the oil pipe 9 is sleeved outside the second joint 2, the first fixing sleeve 13 is rotated to enable the first fixing sleeve 13 to press the oil pipe 9 and be fixed with the second joint 2, then the second joint 2 is fixed with the first joint 1 through threads, then the fixing pin 7 penetrates through the second fixing hole 6 and the first fixing hole 5, then the U-shaped limiting pin 8 is inserted into the fixing pin 7, through the arrangement of the clamping rod 11 and the reset spring 12, when the first fixing sleeve 13 is screwed, the left end of the first fixing sleeve 13 extrudes the clamping rod 11, the clamping rod 11 extrudes the oil pipe 9, through the arrangement of the clamping inclined teeth outside the clamping rod 11 and the matching of the anti-skid inclined teeth outside the second joint 2, the friction force between the oil pipe 9 and the second joint 2 is increased, and the connection stability between the oil pipe 9 and the second joint 2 is improved, through setting up first solid fixed ring 3, solid fixed ring 4 of second and fixed pin 7, after first joint 1 and second joint 2 are fixed, through fixed pin 7, first fixed orifices 5 and second fixed orifices 6 just can prevent to rotate between first joint 1 and the second joint 2, prevent that the screw thread is not hard up, the stability of connection has been improved, through above setting, possess and connect firm advantage, the butt joint to high pressure fuel pipe 9 among the prior art has generally adopted the bolt spiral to connect, at oil pipe 9 vibrations in-process, the external screw thread of bolt easily wears out, the junction is easily not hard up, thereby lead to the problem of oil leak accident.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high pressure fuel pipe of detachable machine that digs connects, includes that first joint (1) and second connect (2), first joint (1) right-hand member threaded connection has second to connect (2), its characterized in that: the outside of first joint (1) and second joint (2) is fixedly connected with first solid fixed ring (3) and the solid fixed ring of second (4) respectively, first fixed ring (5) and second fixed ring (6) that quantity is a plurality of are seted up respectively to the right-hand member of first solid fixed ring (3) and the solid fixed ring of second (4), the inside sliding connection of second fixed ring (6) has fixed pin (7) of running through first fixed ring (5), the inside grafting of fixed pin (7) has U-shaped spacer pin (8) that are located first solid fixed ring (3) left side, the outside grafting of second joint (2) has oil pipe (9), the right-hand member fixedly connected with quantity of second joint (2) is connecting block (10) of a plurality of, a plurality of the right-hand member of connecting block (10) all rotates and is connected with clamp lever (11), a plurality of all fixedly connected with between the left end of clamp lever (11) and second joint (2) is located a plurality of connecting block (10) ) The outer thread of the second joint (2) is connected with a first fixed sleeve (13) positioned outside the oil pipe (9).

2. The high pressure oil pipe joint of a demountable excavator according to claim 1, wherein: the second connector (2) comprises a connecting pipe and a second fixing sleeve, the left end of the connecting pipe is fixedly connected with the second fixing sleeve, a first thread is arranged on the outer portion of the first connector (1), a first threaded hole matched with the first thread is formed in the inner side of the second fixing sleeve, and a sealing ring is fixedly connected to the right end of the first connector (1) and the left end of the second fixing sleeve.

3. The high pressure oil pipe joint of a demountable excavator according to claim 1, wherein: a plurality of first fixed orifices (5) are annular equidistance and distribute in the left end of first solid fixed ring (3), a plurality of second fixed orifices (6) are annular equidistance and distribute in the left end of the solid fixed ring of second (4), the quantity of first fixed orifices (5) is the same with the quantity of second fixed orifices (6), and a plurality of first fixed orifices (5) respectively with a plurality of second fixed orifices (6) are coaxial.

4. The high pressure oil pipe joint of a demountable excavator according to claim 1, wherein: the quantity of fixed pin (7) is two, and two fixed pin (7) are the symmetric distribution, the right-hand member fixedly connected with stopper of fixed pin (7).

5. The high pressure oil pipe joint of a demountable excavator according to claim 1, wherein: the outer fixed connection quantity of the second joint (2) is a plurality of anti-skidding skewed teeth which are positioned on the inner side of the oil pipe (9), and the connecting blocks (10) are distributed in an annular equidistant mode.

6. The high pressure oil pipe joint of a demountable excavator according to claim 1, wherein: the right-hand member of connecting block (10) has seted up the mounting groove, fixedly connected with runs through the pivot of pressing from both sides tight pole (11) in the mounting groove, a plurality of the inboard equal fixedly connected with quantity of pressing from both sides tight skewed tooth that presss from both sides tight pole (11) is a plurality of.