CN212319053U - Reusable hydraulic pipe joint - Google Patents

Abstract

The utility model relates to a repeatedly usable's hydraulic pressure coupling belongs to the auto-parts field, adopt cylindric body, central authorities on the body left side set up hexagonal disjunctor nut, the surface on body left side top sets up the outer silk of spiral, inlay annular sealing ring in the side on the body left side, surface at body central authorities sets up spiral locking thread, the right at the body sets up cylindric clamping sleeve, the outside at the clamping sleeve sets up the hexagonal lock nut, inside on the body right sets up cylindric barb pipe, after the inside of clamping sleeve tip until inserting the inside central authorities of body after hydraulic pressure oil pipe inserts the tip of barb pipe, then overlap lock nut in the higher authority clockwise rotation of clamping sleeve and make lock nut and locking thread meshing force the clamping sleeve to press from both sides hydraulic pressure oil pipe on the barb pipe.

Description

Reusable hydraulic pipe joint

Technical Field

The utility model relates to a repeatedly usable's hydraulic pressure coupling belongs to the auto-parts field, and in particular to coupling can used repeatedly once more after separating with hydraulic pressure oil pipe.

Background

Hydraulic pipe joint, a joint used on hydraulic pipelines of trucks. The existing hydraulic pipe joint and the hydraulic oil pipe are basically formed by one-time pressing of an outer ring, the method is simple and quick, but the hydraulic pipe joint and the hydraulic oil pipe must be replaced after oil leakage occurs and cannot be used continuously. And the connection part between the hydraulic pipe joint and the hydraulic oil pipe is the weakest part and the part of the hydraulic oil pipe which is easy to leak oil, if the oil leakage of the hydraulic oil pipe occurs in a half way of the truck, the continuous work of a hydraulic system of the truck is influenced, and the truck must be stopped and replaced. Therefore, there is a need for a reusable hydraulic fitting that replaces the existing disposable press-fit fittings.

Disclosure of Invention

The utility model relates to a repeatedly usable's hydraulic pressure coupling has solved above-mentioned difficulty, adopt cylindric body, central authorities on the body left side set up the disjunctor nut of hexagon, the surface on body left side top sets up the outer silk of spiral, inlay annular sealing ring in the side on the body left side, surface at body central authorities sets up spiral locking thread, the right at the body sets up cylindric clamping sleeve, the outside at the clamping sleeve sets up the hexagonal lock nut, inside on the body right sets up cylindric barb pipe, after the inside of clamping sleeve tip until inserting the inside central authorities of body after hydraulic pressure oil pipe inserts the tip of barb pipe, then overlap lock nut in the higher authority clockwise rotation of clamping sleeve and make lock nut and locking thread meshing force the clamping sleeve to press from both sides hydraulic pressure oil pipe on the barb pipe.

A reusable hydraulic pipe joint is characterized by comprising a pipe body, a conjoined nut, an outer thread, a locking thread, a clamping sleeve, a barb pipe, a locking nut, a sealing ring, an inner thread and a locking port;

the pipe body is hollow and cylindrical, a hexagonal union nut is arranged in the middle of the left side of the pipe body, a spiral external thread is arranged on the outer edge of the top end of the left side of the pipe body, an annular sealing ring made of brass is embedded on the upper surface of the left side surface of the pipe body, a spiral locking thread is arranged on the surface of the center of the pipe body, a cylindrical clamping sleeve is arranged on the right side of the pipe body, strip-shaped openings are transversely and horizontally uniformly arranged on the pipe wall of the clamping sleeve, 2-5-degree taper is arranged between the left side with the large left side and the small right side and the right top end on the outer edge of the clamping sleeve, annular grooves are uniformly arranged on the inner wall of the clamping sleeve;

the barb pipe is cylindrical, the top end of the left side of the barb pipe is connected with the center of the inner wall of the pipe body, conical barbs are uniformly arranged on the outer edge of the barb pipe, all the barbs are large at the left side and small at the right side, and the distance between the outer edge of the barb pipe and the inner wall of the clamping sleeve is 3-10 mm;

the locking nut is hexagonal and is arranged on the outer edge of the clamping sleeve, the spiral inner thread is arranged inside the left side of the locking nut, the inner thread is meshed with the locking thread, the middle part inside the locking nut is cylindrical, the inner diameter is larger than the outer edge diameter of the locking thread by 2-5mm, the annular locking port is arranged inside the right side of the locking nut, and the inner diameter of the locking port is equal to the diameter of the outer edge of the top end of the right side of the clamping sleeve.

Has the advantages that: the existing hydraulic pipe joint and the hydraulic oil pipe are basically formed by one-time pressing of an outer ring, the method is simple and quick, but the hydraulic pipe joint and the hydraulic oil pipe must be replaced after oil leakage occurs and cannot be used continuously. And the connection part between the hydraulic pipe joint and the hydraulic oil pipe is the weakest part and the part of the hydraulic oil pipe which is easy to leak oil, if the oil leakage of the hydraulic oil pipe occurs in a half way of the truck, the continuous work of a hydraulic system of the truck is influenced, and the truck must be stopped and replaced. A reusable hydraulic pipe joint is characterized in that after a hydraulic oil pipe is inserted into the end part of a barb pipe, the hydraulic oil pipe passes through the inside of the end part of a clamping sleeve to the center of the inside of a pipe body, and then a locking nut is sleeved on the clamping sleeve to rotate clockwise, so that the locking nut is meshed with a locking thread to force the clamping sleeve to clamp the hydraulic oil pipe on the barb pipe.

Drawings

FIG. 1 is a front view of a reusable hydraulic fitting;

FIG. 2 is a schematic structural view of an outer wire and a sealing ring;

FIG. 3 is a schematic structural view of the pipe body, the conjoined nut, the locking thread and the clamping sleeve;

FIG. 4 is a schematic view of a barb tube structure;

FIG. 5 is a schematic structural view of a locking nut, an internal thread, and a locking port;

the marks in the figures are a pipe body 1, a conjoined nut 2, an outer thread 3, a locking thread 4, a clamping sleeve 5, a barb pipe 6, a locking nut 7, a sealing ring 8, an inner thread 9 and a locking port 10.

Detailed Description

The shape and structure of the present invention will be described in detail with reference to the accompanying drawings and the reference numerals:

a reusable hydraulic pipe joint is characterized by comprising a pipe body (16Mpa)1, a conjoined nut 2, an outer thread 3, a locking thread 4, a clamping sleeve 5, a barb pipe (16Mpa)6, a locking nut 7, a sealing ring 8, an inner thread 9 and a locking port 10;

the pipe body 1 is hollow and cylindrical, a hexagonal connected nut 2 is arranged in the middle of the left side of the pipe body 1, a spiral external thread 3 is arranged on the outer edge of the top end of the left side of the pipe body 1, an annular sealing ring 8 made of brass is embedded on the upper surface of the left side of the pipe body 1, a spiral locking thread 4 is arranged on the surface of the center of the pipe body 1, a cylindrical clamping sleeve 5 is arranged on the right side of the pipe body 1, strip-shaped openings are horizontally and uniformly arranged on the pipe wall of the clamping sleeve 5, 2-5-degree taper is arranged between the left side and the right top end of the outer edge of the clamping sleeve 5, a circular groove is uniformly arranged on the inner wall of the clamping sleeve 5, and a barb pipe 6 is arranged inside the clamping sleeve 5;

the barb pipe 6 is cylindrical, the top end of the left side of the barb pipe 6 is connected with the center of the inner wall of the pipe body 1, conical barbs are uniformly arranged on the outer edge of the barb pipe 6, all the barbs are large at the left side and small at the right side, and the distance between the outer edge of the barb pipe 6 and the inner wall of the clamping sleeve 5 is 3-10 mm;

the locking nut 7 is hexagonal and is arranged on the outer edge of the clamping sleeve 5, the spiral inner thread 9 is arranged inside the left side of the locking nut 7, the inner thread 9 is meshed with the locking thread 4, the middle part inside the locking nut 7 is cylindrical, the inner diameter is larger than the outer edge diameter of the locking thread 4 by 2-5mm, the circular locking port 10 is arranged inside the right side of the locking nut 7, and the inner diameter of the locking port 10 is equal to the diameter of the outer edge of the top end of the right side of the clamping sleeve 5.

When the reusable hydraulic pipe joint is used, a worker unscrews the locking nut from the pipe body, sleeves one end of the locking nut with the locking port on the end part of a matched high-pressure oil pipe, inserts the end part of the hydraulic oil pipe into the end part of the barb pipe with force, passes through the inside of the end part of the clamping sleeve until the end part of the clamping sleeve is inserted into the center of the inside of the pipe body, then, sleeves the locking nut on the clamping sleeve, rotates clockwise to enable the locking nut to be meshed with the locking thread, then uses two wrenches to respectively clamp the conjoined nut and the locking nut, then rotates oppositely with force, when the locking nut slowly moves towards the middle part of the pipe body, as the thinnest middle part of the end part of the clamping sleeve is slightly thicker than the end part, the locking port of the locking nut enables the clamping sleeve to be more tightened to enable the clamping sleeve to clamp the hydraulic oil pipe on the barb pipe, and then the worker connects the outer thread on the pipe, if oil leaks from the connecting part of the hydraulic pipe joint and the hydraulic oil pipe, the locking nut can be removed, the hydraulic oil pipe can be pulled out, the oil leaking part can be cut off, and then the oil pipe can be connected according to the method for continuous use.

The above-mentioned non-detailed description is prior art.

The foregoing is merely a general disclosure of the invention and is not intended to limit the invention in any way; those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims.

Claims (1)

1. A reusable hydraulic pipe joint is characterized by comprising a pipe body, a conjoined nut, an outer thread, a locking thread, a clamping sleeve, a barb pipe, a locking nut, a sealing ring, an inner thread and a locking port;

the pipe body is hollow and cylindrical, a hexagonal union nut is arranged in the middle of the left side of the pipe body, a spiral external thread is arranged on the outer edge of the top end of the left side of the pipe body, an annular sealing ring made of brass is embedded on the upper surface of the left side surface of the pipe body, a spiral locking thread is arranged on the surface of the center of the pipe body, a cylindrical clamping sleeve is arranged on the right side of the pipe body, strip-shaped openings are transversely and horizontally uniformly arranged on the pipe wall of the clamping sleeve, 2-5-degree taper is arranged between the left side with the large left side and the small right side and the right top end on the outer edge of the clamping sleeve, annular grooves are uniformly arranged on the inner wall of the clamping sleeve;

the barb pipe is cylindrical, the top end of the left side of the barb pipe is connected with the center of the inner wall of the pipe body, conical barbs are uniformly arranged on the outer edge of the barb pipe, all the barbs are large at the left side and small at the right side, and the distance between the outer edge of the barb pipe and the inner wall of the clamping sleeve is 3-10 mm;

the locking nut is hexagonal and is arranged on the outer edge of the clamping sleeve, the spiral inner thread is arranged inside the left side of the locking nut, the inner thread is meshed with the locking thread, the middle part inside the locking nut is cylindrical, the inner diameter is larger than the outer edge diameter of the locking thread by 2-5mm, the annular locking port is arranged inside the right side of the locking nut, and the inner diameter of the locking port is equal to the diameter of the outer edge of the top end of the right side of the clamping sleeve.

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