CN215674065U

CN215674065U - High-pressure oil pipe connecting device

Info

Publication number: CN215674065U
Application number: CN202122432312.8U
Authority: CN
Inventors: 鲍晓振; 恽文明
Original assignee: CHANGZHOU GUANDE MACHINERY CO LTD
Current assignee: Nantong Dingxu Technology Co.,Ltd.
Priority date: 2021-10-10
Filing date: 2021-10-10
Publication date: 2022-01-28
Anticipated expiration: 2031-10-10

Abstract

The utility model belongs to the technical field of high-pressure oil pipe connection, in particular to a high-pressure oil pipe connecting device, which comprises a nut and a hollow stud, wherein the nut is matched with the hollow stud, a positioning hole is formed above a body of the nut, a supporting pipe is connected above the hollow stud, a supporting plate is sleeved outside the supporting pipe, an installation groove is formed below the body of the supporting plate, a compression spring is arranged in an inner cavity of the installation groove, an adapter device is movably sleeved outside the supporting pipe, the lower end of the compression spring is attached to the adapter device, a positioning column is connected to the lower side of the adapter device and corresponds to the positioning hole, the device is provided with the positioning hole on the nut, then a positioning column is arranged below the adapter device, and the adapter device can only move up and down along the supporting pipe, so after the positioning column is inserted in the positioning hole, the nut can not rotate in vibration, and further looseness of the nut is avoided.

Description

High-pressure oil pipe connecting device

Technical Field

The utility model relates to the technical field of high-pressure oil pipe connection, in particular to a high-pressure oil pipe connecting device.

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. When the existing high-pressure oil pipe is connected, the high-pressure oil pipe is mainly connected through threads, namely, one end of the high-pressure oil pipe is connected with a nut, the other end of the high-pressure oil pipe is provided with external threads, and then a sealing ring is arranged in the nut and used for sealing.

Among high pressure fuel pipe's the mechanical equipment that connects, along with the vibrations of machine, the last nut of high pressure fuel pipe also can take place vibrations, and the nut can take place to grab in vibrations and do, and then can lead to the nut not hard up, and the nut is not hard up can lead to the leakproofness variation between the high pressure fuel pipe, and then can lead to high pressure fuel pipe's the oil leak of connecting.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a high pressure oil pipe connection device, which solves the problem of the prior art that a nut on a high pressure oil pipe rotates along with vibration.

In order to achieve the purpose, the utility model provides the following technical scheme: high pressure fuel pipe connecting device, including nut and hollow double-screw bolt, nut and hollow double-screw bolt looks adaptation, the locating hole has been seted up to the body top of nut, the top of hollow double-screw bolt is connected with the stay tube, the outside cover of stay tube is equipped with the backup pad, the mounting groove has been seted up to the body below of backup pad, install compression spring in the inner chamber of mounting groove, the outside movable sleeve of stay tube is equipped with switching device, compression spring's lower extreme and switching device laminating, switching device's downside is connected with the reference column, the reference column is corresponding with the locating hole.

Preferably, the switching device comprises an orientation plate, and a turntable is movably connected above the orientation plate.

Preferably, the outer diameter of the rotary disc is larger than that of the orientation plate, and anti-skid grains are arranged on the outer side of the rotary disc.

Preferably, an L-shaped clamping block is arranged above the rotary disc, an L-shaped clamping groove is formed in the lower portion of the support plate body, and the L-shaped clamping block corresponds to the L-shaped clamping groove.

Preferably, the outside cover of stay tube is equipped with the location orifice plate, the counterpoint hole has been seted up on the body of location orifice plate, the reference column runs through the counterpoint hole.

Compared with the prior art, the utility model has the beneficial effects that:

this device sets up the locating hole on the nut, then at the below installation reference column of switching device, because switching device can only reciprocate along the stay tube, so when the locating hole back is pegged graft to the post, the nut can't rotate in vibrations, and then has avoided not hard up of nut.

Drawings

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

FIG. 2 is a front view cross-sectional structural schematic of the support tube of the present invention;

fig. 3 is a schematic front view, a sectional structure view of the adapter of the present invention.

In the figure: the device comprises a nut 1, a positioning hole 2, a positioning hole plate 3, a registration hole 31, an adapter 4, a directional plate 41, a rotary table 42, a 43L-shaped fixture block, a support plate 5, a 51L-shaped clamping groove, a support tube 6, a positioning column 7, a compression spring 8 and a hollow stud 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-3, the present invention provides a technical solution: a high-pressure oil pipe connecting device comprises a nut 1 and a hollow stud 9, wherein after the nut 1 is connected with the high-pressure oil pipe, the nut 1 can rotate around the high-pressure oil pipe, the hollow stud 9 is fixedly connected with the high-pressure oil pipe, after the two high-pressure oil pipes are connected, the nut 1 is in threaded connection with the hollow stud 9, a positioning hole 2 is formed above a body of the nut 1, a supporting pipe 6 is connected above the hollow stud 9, a supporting plate 5 is sleeved outside the supporting pipe 6, the supporting plate 5 is fixedly connected with the supporting pipe 6, a mounting groove is formed below the body of the supporting plate 5, a compression spring 8 is installed in an inner cavity of the mounting groove, a switching device 4 is movably sleeved outside the supporting pipe 6, the switching device 4 can move up and down along the central axis of the supporting pipe 6, the lower end of the compression spring 8 is attached to the switching device 4, and the switching device 4 tends to move towards the nut 1 through the elasticity of the compression spring 8, the lower side of the adapter 4 is connected with a positioning column 7, and after the two high-pressure oil pipes are connected, the positioning column 7 is inserted into the positioning hole 2.

The adapter 4 includes an orientation plate 41, a rotation disc 42 is movably connected above the orientation plate 41, and the rotation disc 42 can rotate around the central axis of the orientation plate 41.

The outer side of the turntable 42, which has the outer diameter larger than that of the orientation plate 41, of the turntable 42 is provided with anti-slip lines, so that the turntable 42 is convenient to rotate.

The top of carousel 42 is provided with L type fixture block 43, L type draw-in groove 51 has been seted up to the body below of backup pad 5, the width of L type draw-in groove 51 is greater than the width of L type fixture block 43, L type fixture block 43 can reciprocate and rotate round the axis of stay tube 6 in L type draw-in groove 51, when L type fixture block 43 upwards moves, L type fixture block 43 can drive reference column 7 through adapter 4 and upwards move, thereby pull out in locating hole 2 with reference column 7, rotatory L type fixture block 43 afterwards, and make the cantilever card of L type fixture block 43 in the cantilever groove of L type draw-in groove 51, thereby avoid L type fixture block 43 under compression spring 8's elasticity, fall back automatically, can twist nut 1 this moment, thereby separate nut 1 and hollow stud 9.

The outside cover of stay tube 6 is equipped with location orifice plate 3, location orifice plate 3 links firmly with stay tube 6, counterpoint hole 31 has been seted up on location orifice plate 3's the body, after nut 1 was screwed up on hollow stud 9, counterpoint hole 31 aligns with locating hole 2, reference column 7 runs through counterpoint hole 31 and stretches into in locating hole 2 this moment, it is spacing to advance reference column 7 through counterpoint hole 31 for the orientation board 41 of being connected with reference column 7 can not rotate, can only reciprocate.

The working principle is as follows: when the switching device 4 is moved upwards, the switching device 4 drives the positioning post 7 to move upwards, and when the switching device 4 moves to the upper limit, the rotating disc 42 is rotated, the rotating disc 42 drives the L-shaped clamping block 43 to rotate, when the cantilever of the L-shaped clamping block 43 is clamped in the cantilever groove of the L-shaped clamping groove 51, the nut 1 is screwed with the hollow stud 9, after the nut 1 is connected with the hollow stud 9, the rotating disc 42 is rotated reversely, the rotating disc 42 drives the L-shaped clamping block 43 to rotate, when the rotary disc 42 rotates to the limit, the cantilever of the L-shaped fixture block 43 is separated from the cantilever groove of the L-shaped fixture groove 51, at this time, the adapter 4 is released, the compression spring 8 pushes the adapter 4 to move downwards, the adapter 4 pushes the positioning column 7 to move downwards, finally the positioning column 7 is inserted into the positioning hole 2, the nut 1 cannot be rotated at this time, so that the nut 1 cannot be separated from the hollow stud 9 when the nut 1 vibrates.

While there have been shown and described the fundamental principles and essential features of the utility model and advantages thereof, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. High pressure fuel pipe connecting device, including nut (1) and hollow stud (9), its characterized in that: nut (1) and hollow stud (9) looks adaptation, locating hole (2) have been seted up to the body top of nut (1), the top of hollow stud (9) is connected with stay tube (6), the outside cover of stay tube (6) is equipped with backup pad (5), the mounting groove has been seted up to the body below of backup pad (5), install compression spring (8) in the inner chamber of mounting groove, the outside activity cover of stay tube (6) is equipped with switching device (4), the lower extreme and the laminating of switching device (4) of compression spring (8), the downside of switching device (4) is connected with reference column (7), reference column (7) are corresponding with locating hole (2).

2. The high pressure tubing connection of claim 1, wherein: the switching device (4) comprises an orientation plate (41), and a turntable (42) is movably connected above the orientation plate (41).

3. The high pressure tubing connection of claim 2, wherein: the outer diameter of the rotary disc (42) is larger than that of the orientation plate (41), and anti-slip grains are arranged on the outer side of the rotary disc (42).

4. The high pressure tubing connection of claim 2, wherein: an L-shaped clamping block (43) is arranged above the rotary disc (42), an L-shaped clamping groove (51) is formed in the lower portion of the body of the supporting plate (5), and the L-shaped clamping block (43) corresponds to the L-shaped clamping groove (51).

5. The high pressure tubing connection of claim 1, wherein: the outside cover of stay tube (6) is equipped with locating hole board (3), counterpoint hole (31) have been seted up on the body of locating hole board (3), counterpoint hole (31) are run through in reference column (7).