CN218883294U - Oil pipe joint - Google Patents

Abstract

The utility model discloses an oil pipe joint, a serial communication port, including core and overcoat, the core forms with oil transportation equipment or hydraulic equipment to be connected, the overcoat is connected on the core, the outer wall of core with be equipped with the annular on at least one of the inner wall of overcoat, have the oil sweetgum fruit way that runs through on the core, the oil pipe crimping in the core with between the overcoat and pass through oil sweetgum fruit way and oil transportation equipment or hydraulic equipment intercommunication. The utility model is used for connecting two ends of a high-pressure rubber pipe, the joint and the rubber pipe are tightly connected into a whole by the pressing of the pressing machine, and then the joint is arranged on the required equipment by the first thread section on the joint; the crimping process is convenient, the damage of the oil pipe is avoided in the crimping process, the sealing performance after crimping is better, the deformation quantity of the core is reduced during crimping due to the arrangement of the large-size threaded holes and the second threaded sections, and meanwhile the production and installation of the outer sleeve and the core are more convenient.

Description

Oil pipe joint

Technical Field

The utility model relates to a five metals piecing devices technical field specifically is an oil pipe connects.

Background

In a hydraulic system, a tubing joint is the component that connects between a high pressure tubing and a piece of oil delivery equipment. The joint can be divided into a hydraulic hose, a high-pressure ball valve, a quick joint, a ferrule type pipe joint, a welding type pipe joint, a high-pressure hose, a transition type pipe joint, a three-way type pipe joint, a nonstandard type pipe joint, a flared type pipe joint, a right-angle type pipe joint, a rotary type pipe joint, a quick joint, a stainless steel pipe joint and a copper joint.

Both metal pipe joints and hose joints have a problem that leakage is likely to occur. For the ferrule type pipe joint, the leakage is mostly caused by the looseness of the ferrule or deformation of the end surface of the pipe due to the large external force or impact force applied to the pipe. Therefore, an oil pipe joint with high structural strength and good sealing performance and capable of avoiding failure needs to be designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil pipe joint, it has the crimping process convenience, can avoid oil pipe's damage and core inefficacy at the in-process of crimping, and the leakproofness after the crimping is better, makes the production of overcoat and core, installs more convenient advantage simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: an oil pipe joint comprises a core and a jacket, wherein the core is connected with oil transportation equipment or hydraulic equipment, the jacket is connected to the core, the outer wall of the core and at least one of the inner walls of the jacket are provided with annular grooves, the core is provided with a through oil passage, and the oil pipe is in compression joint with the core and the jacket and is communicated with the oil transportation equipment or the hydraulic equipment through the oil passage.

Further, the core includes first screw thread section, hexagon nut section, second screw thread section and extension section in proper order, the core passes through first screw thread section and oil transportation equipment or hydraulic equipment threaded connection, be equipped with a plurality of first annulars on the outer wall of extension section.

Furthermore, a conical surface is formed at one end, away from the first thread section, of the extension section, and the first annular groove is a semi-annular groove or an arc-shaped annular groove.

Further, the core is of an integrally formed structure.

Furthermore, a through hole is formed in the outer sleeve in a penetrating mode, and a plurality of second ring grooves are formed in the through hole in a forming mode.

Furthermore, the through hole is a stepped hole, one end of the through hole is formed into a threaded hole matched with the second threaded section and is in threaded connection with the core through the threaded hole, and the outer edge of the outer sleeve tightly abuts against the end face of the hexagon nut section.

Further, the shoulder hole includes first order ladder and second level ladder, the shaping has between first order ladder and the second level ladder the second annular, the second annular is formed by the combination of big end two circular platform shape annulars that join mutually.

Further, the contained angle that the generating line of two circular truncated cone shape annular formed is a, wherein: a is more than or equal to 90 degrees and less than or equal to 130 degrees.

Furthermore, the aperture of the first step is larger than that of the second step, the second step is close to the threaded hole, and the nominal size of the threaded hole is M10 multiplied by 1.

Further, the axial length of the extension section is greater than the axial length of the outer sleeve.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the joint is used for connecting two ends of a high-pressure rubber pipe, the joint and the rubber pipe are tightly connected into a whole through the fastening of a fastening machine, and then the joint is installed on required equipment through a first thread section on the joint; the utility model discloses when using, earlier with the overcoat connection on the core, peg graft oil pipe between overcoat and core again, through twice crimping can, wherein, the position of second screw thread section can be avoided in the crimping for the first time and only the relevant position department of crimping extension section, the crimping can be carried out to the position of second screw thread section for the second time, because the setting of first annular and second annular and the obtuse angle structure that second annular and overcoat inner wall formed, make the crimping process convenient, and avoided oil pipe's damage at the in-process of crimping, leakproofness after the crimping is better, again because the setting of large-size screw hole and second screw thread section, also reduced the deformation volume of core during the crimping, the inefficacy of core has been avoided, make the production of overcoat and core simultaneously, it is more convenient to install.

Drawings

Fig. 1 is a schematic perspective view (one) of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a front view of the center core of the present invention;

FIG. 5 is a longitudinal cross-sectional view of the center core of the present invention;

FIG. 6 is a perspective view of the center core of the present invention;

fig. 7 is a perspective view of the middle outer cover of the present invention;

fig. 8 is a longitudinal sectional view of the middle outer cover of the present invention.

In the figure: 1. the core 11, a first thread section, 12, a hexagon nut section, 13, a second thread section, 14, a first annular groove, 15, an extension section, 2, an outer sleeve, 21, a first-stage step, 22, a second-stage step, 23 and a second annular groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.

Example 1.

Referring to fig. 1 to 8, the oil pipe joint in the embodiment includes a core 1 and a jacket 2, the core 1 is connected to an oil transportation device or a hydraulic device, the jacket 2 is connected to the core 1, at least one of an outer wall of the core 1 and an inner wall of the jacket 2 is provided with a ring groove, the core 1 is provided with a through oil passage, and an oil pipe (not shown) is pressed between the core 1 and the jacket 2 and is communicated with the oil transportation device or the hydraulic device through the oil passage.

The core 1 includes first screw thread section 11, hexagon nut section 12, second screw thread section 13 and extension section 15 in proper order, core 1 is through first screw thread section 11 and oil transportation equipment or hydraulic equipment threaded connection, be equipped with a plurality of first annular 14 on the outer wall of extension section 15.

One end of the extension section 15, which is far away from the first thread section 11, is formed with a conical surface, and the first ring groove 14 is a semi-circular groove or an arc-shaped ring groove.

The core 1 is of an integrally formed structure.

A through hole is formed in the outer sleeve 2, and a plurality of second annular grooves 23 are formed in the through hole.

The through-hole is the shoulder hole, the one end shaping of through-hole be with the screw hole of second screw thread section 13 looks adaptation and pass through the screw hole with 1 threaded connection of core, the outer fringe of overcoat 2 tightly support in the terminal surface of hexagon nut section 12.

The shoulder hole includes first order ladder 21 and second level ladder 22, the shaping has between first order ladder 21 and the second level ladder 22 second annular 23, second annular 23 is formed by two circular platform shape annular combinations of big end joint.

The contained angle that the generating line of two circular truncated cone shape annular formed is a, wherein: a is more than or equal to 90 degrees and less than or equal to 130 degrees.

The aperture of the first step 21 is larger than that of the second step 22, the second step 22 is close to the threaded hole, and the nominal size of the threaded hole is M10 multiplied by 1.

The axial length of the extension 15 is greater than the axial length of the jacket 2.

The specific implementation of this example is as follows: the joint is used for connecting two ends of a high-pressure rubber pipe, the joint and the rubber pipe are tightly connected into a whole through the fastening of a fastening machine, and then the joint is installed on required equipment through a first thread section 11 on the joint;

connect overcoat 2 on core 1 earlier, peg graft oil pipe between overcoat 2 and core 1 again, through twice crimping can, wherein, the position of second screw thread section 13 can be avoided in the crimping for the first time and only the corresponding position department of crimping extension section 15, can carry out the crimping to the position of second screw thread section 13 for the second time, because the setting of first annular 14 and second annular 23 and the obtuse angle structure that second annular 23 and overcoat 2 inner wall formed, make the crimping process convenient, and avoided oil pipe's damage at the in-process of crimping, the leakproofness after the crimping is better, because the setting of large-size screw hole and second screw thread section 13, also reduced the deformation volume of core 1 during making the crimping, avoided the inefficacy of core 1, make the production of overcoat 2 and core 1, it is more convenient to install simultaneously.

It should be noted that, in the using process, the core 1 can be connected to the oil transportation equipment or the hydraulic equipment, then the jacket 2 and the pressure welding oil pipe are connected, or the core 1 and the jacket 2 can be connected and the pressure welding oil pipe is connected to the external equipment, and the use is flexible according to the situation.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 (10)

1. The utility model provides an oil pipe joint, its characterized in that includes core and overcoat, the core forms with oil transportation equipment or hydraulic equipment to be connected, the overcoat is connected on the core, the outer wall of core with be equipped with the annular on at least one of the inner wall of overcoat, have the oil road passageway that runs through on the core, oil pipe crimping in the core with between the overcoat and through oil road passageway and oil transportation equipment or hydraulic equipment intercommunication.

2. The tubing joint of claim 1, wherein: the core includes first screw thread section, hexagon nut section, second screw thread section and extension section in proper order, the core is through first screw thread section and oil transportation equipment or hydraulic equipment threaded connection, be equipped with a plurality of first annulars on the outer wall of extension section.

3. The tubing joint of claim 2, wherein: the one end shaping that the first screw thread section was kept away from to the extension section has the circular conical surface, first annular is semi-circular ring groove or arc annular.

4. The tubing joint according to claim 2 or 3, wherein: the core is of an integrally formed structure.

5. The tubing joint of claim 2, wherein: the outer sleeve is internally provided with a through hole which penetrates through the outer sleeve, and a plurality of second ring grooves are formed in the through hole.

6. The tubing joint of claim 5, wherein: the through hole is a stepped hole, one end of the through hole is formed into a threaded hole matched with the second threaded section and is in threaded connection with the core through the threaded hole, and the outer edge of the outer sleeve tightly abuts against the end face of the hexagon nut section.

7. The tubing joint of claim 6, wherein: the shoulder hole includes first order ladder and second level ladder, the shaping has between first order ladder and the second level ladder the second annular, the second annular is formed by two round platform shape annular combinations of big end joint.

8. The tubing joint of claim 7, wherein: the contained angle that the generating line of two circular truncated cone shape annular formed is a, wherein: a is more than or equal to 90 degrees and less than or equal to 130 degrees.

9. The tubing joint of claim 8, wherein: the diameter of the first step is larger than that of the second step, the second step is close to the threaded hole, and the nominal size of the threaded hole is M10 multiplied by 1.

10. The tubing joint of claim 9, wherein: the axial length of the extension section is greater than the axial length of the outer sleeve.

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