CN111578020B - Easily-installed hydraulic pipe joint for engineering machinery - Google Patents
Easily-installed hydraulic pipe joint for engineering machinery Download PDFInfo
- Publication number
- CN111578020B CN111578020B CN202010444568.8A CN202010444568A CN111578020B CN 111578020 B CN111578020 B CN 111578020B CN 202010444568 A CN202010444568 A CN 202010444568A CN 111578020 B CN111578020 B CN 111578020B
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- China
- Prior art keywords
- inner sleeve
- notch
- joint
- pipe
- annular
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/003—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses comprising elements arranged in the hose walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/223—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L33/224—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts a clamping ring being arranged between the threaded member and the connecting member
Abstract
The invention discloses an easily-installed hydraulic pipe joint for engineering machinery, which comprises an inner sleeve, wherein the outer circumferential side surface of the inner sleeve, which is close to the right end, is in threaded connection with a joint outer sleeve; the inner side wall of the inner sleeve is provided with an annular cutting groove, a plurality of notches are uniformly arranged on the side wall of the inner sleeve at intervals along the circumferential direction, the notches are communicated with the cannula groove and the annular cutting groove, and the notches are positioned at the left end of the annular cutting groove; a pressing block is connected in each notch in a sliding manner along the radial direction of the inner sleeve, a moving pipe is connected to the right end opening of the annular notch in a threaded manner, and the left end of the moving pipe extends into the annular notch to control the pressing block to extend into the tube inserting groove from the notch; the right end of the movable pipe is sleeved with a pipe joint nut; the hydraulic rubber hose joint is simple in structure and can facilitate connection of a high-pressure hose and the joint.
Description
Technical Field
The invention belongs to the technical field of hydraulic accessories, and particularly relates to a hydraulic pipe joint.
Background
At present, in a hydraulic system, the most used hydraulic rubber pipes are used when oil paths between all elements are connected, and because the existing hydraulic rubber pipes are manufactured by a process of fastening and tightening a fastening type rubber pipe joint and a high-pressure hose connecting end, the length of a high-pressure hose cannot be changed after the manufacturing is finished, in order to avoid the long pipelines of the hydraulic system, the length of the pipeline needs to be good according to the distance between all elements before the hydraulic system is connected with the pipeline, the hydraulic rubber pipes are customized in a hydraulic rubber pipe manufacturer according to the length, the assembly process of the hydraulic system can be influenced in the piping process of the hydraulic system, the construction period is delayed, and if the phenomena of dimension measurement errors and the like occur, the customized hydraulic rubber pipes can not be used at all possible, and waste can be caused; in the use process of the hydraulic rubber hose, the connection part of the high-pressure hose and the buckling-pressing type joint is easy to damage and cause leakage, so that the whole rubber hose can be discarded even if scrapped, a large amount of waste is caused, and inconvenience is brought to production and life.
Disclosure of Invention
The invention aims to provide an easily-installed hydraulic pipe joint for engineering machinery, which is simple in structure and can facilitate connection of a high-pressure hose and the joint.
In order to achieve the purpose, the invention provides the following technical scheme:
an easily-installed hydraulic pipe joint for engineering machinery comprises an inner sleeve, wherein a joint outer sleeve is in threaded connection with the outer circumferential side surface of the inner sleeve close to the right end, and an annular pipe inserting groove is formed between the joint outer sleeve and the inner sleeve; the inner side wall of the inner sleeve is provided with an annular cutting groove, a plurality of notches are uniformly arranged on the side wall of the inner sleeve at intervals along the circumferential direction, the notches are communicated with the cannula groove and the annular cutting groove, and the notches are positioned at the left end of the annular cutting groove; a pressing block is connected in each notch in a sliding manner along the radial direction of the inner sleeve, a moving pipe is connected to the right end opening of the annular notch in a threaded manner, and the left end of the moving pipe extends into the annular notch to control the pressing block to extend into the tube inserting groove from the notch; and a pipe joint nut is sleeved at the right end of the movable pipe.
Through the technical scheme, when this hydraulic pressure rubber tube joint carries out the piping, at first cut out the high-pressure hose of corresponding length according to the distance between the hydraulic system interface, insert the right-hand member bottom of intubate groove with the one end of high-pressure hose, the pipe is removed in the rotation, because remove pipe and interior sleeve pipe screw-thread fit, make and remove the relative interior sleeve pipe of pipe and move left, it supports on the briquetting to remove the pipe and move left, release the briquetting from the notch, it produces deformation completion locking to extrude high-pressure hose, just so accomplish the connection of high-pressure hose and joint, insert hydraulic system with the hydraulic pressure rubber tube that connects well again and just can carry out normal use, the customization link has been saved, piping efficiency has been promoted greatly.
Furthermore, the inner sleeve is sleeved with a sealing ring on the side surface of the outer circumference close to the joint outer sleeve, and the joint outer sleeve extrudes the sealing ring to protrude outwards when moving leftwards along the axial direction of the inner sleeve.
Through the technical scheme, after one end of the high-pressure hose is inserted into the bottom of the right end of the insertion pipe groove, the joint outer sleeve is rotated, so that the joint outer sleeve moves leftwards, the sealing ring is extruded to deform and protrude outwards, and the high-pressure hose is extruded to be sealed.
Furthermore, the notch comprises a first notch arranged on the outer circumferential side surface of the inner sleeve and a second notch used for communicating the first notch with the annular cutting groove, the pressing block comprises a pressing block body which is connected in the first notch in a sliding manner along the radial direction of the inner sleeve, a protruding block which penetrates through the second notch and extends into the annular cutting groove is arranged on the pressing block body, a first inclined surface is arranged on the protruding block, and a first conical surface matched with the first inclined surface is arranged on the outer side of the left end of the moving pipe; the arrangement is that before the moving pipe abuts against the pressing block, the pressing block body is positioned in the first notch, so that the pressing block cannot fall into the annular notch from the notch; the first inclined plane and the first conical surface are arranged so that when the movable pipe moves leftwards, the first conical surface and the first inclined plane are matched to push the pressing block to extend out of the notch.
Furthermore, a plurality of convex teeth are uniformly arranged on the outer side of the briquetting body along the axial direction of the inner sleeve at intervals; the arrangement of the convex teeth can increase the frictional resistance between the pressing block and the inner side wall of the high-pressure hose, so that the connection of the high-pressure hose is effectively guaranteed.
Further, a second conical surface is arranged on the inner side of the left end of the joint outer sleeve; the arrangement of the second conical surface can facilitate the insertion of the high-pressure hose into the cannula slot.
Further, a third conical surface is arranged on the outer side of the left end of the inner sleeve; the third conical surface can facilitate the insertion of the inner sleeve into the high-pressure hose.
Furthermore, the right end outside of removing the pipe is equipped with first bulge loop and second bulge loop, the pipe joint nut is located between first bulge loop and the second bulge loop.
Further, the sealing ring is made of rubber material.
Advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages:
(1) the inner sleeve and the high-pressure hose are connected in a mechanical fastening mode, and a fastening mode is omitted, so that the high-pressure hose can be prevented from being customized according to the distance of a hydraulic element, and the high-pressure hose with a proper length is cut out to be connected only through the distance between hydraulic interfaces, and the piping efficiency is improved;
(2) the inner sleeve and the high-pressure hose are connected in a mechanical fastening mode, the fastening mode is eliminated, and the high-pressure hose with proper length is cut out only by element distance for connection, so that the long pipeline caused by the error in pipe distribution measurement is avoided, the high-pressure hose is saved, and the waste is avoided;
(3) connect interior sleeve pipe and high-pressure hose through mechanical straining mode, give up the withholding form, if appear the junction damage in the use and reveal, only need to change same length high-pressure hose, simple swift to the joint can remain and continue to use, the high-pressure hose that changes down subtracts the damaged place and can also use in other places, great improvement utilization ratio has saved the cost.
Drawings
FIG. 1 is a cross-sectional view of the present invention inserted into a high pressure hose;
FIG. 2 is a cross-sectional view of the seal ring of the present invention as it is compressed;
FIG. 3 is a cross-sectional view of the press block of the present invention as it is extended;
FIG. 4 is a perspective view of the inner sleeve of the present invention;
FIGS. 5 to 6 are structural views of compacts of the present invention;
FIG. 7 is a cross-sectional view of the present invention;
fig. 8 is a cross-sectional view of an inner casing according to the present invention.
Detailed Description
Referring to fig. 1-4, an easily-installed hydraulic pipe joint for engineering machinery comprises an inner sleeve 2, wherein a joint outer sleeve 3 is in threaded connection with the outer circumferential side surface of the inner sleeve 2 close to the right end, and an annular pipe insertion groove 201 is formed between the joint outer sleeve 3 and the inner sleeve 2; the outer circumferential side surface of the inner sleeve 2 close to the joint outer sleeve 3 is sleeved with a sealing ring 5 made of a rubber material, and when the joint outer sleeve 3 moves leftwards along the axial direction of the inner sleeve 2, the sealing ring 5 is extruded to protrude outwards. The inner side wall of the inner sleeve 2 is provided with an annular cutting groove 21, the side wall of the inner sleeve 2 is uniformly provided with a plurality of notches 22 at intervals along the circumferential direction, the notches 22 are communicated with the cannula inserting groove 201 and the annular cutting groove 21, and the notches 22 are positioned at the left end of the annular cutting groove 21; a pressing block 4 is connected to the inside of each notch 22 in a sliding manner along the radial direction of the inner sleeve 2, a moving pipe 1 is connected to the opening of the right end of the annular cutting groove 21 in a threaded manner, and the left end of the moving pipe 1 extends into the annular cutting groove 21 and is used for controlling the pressing block 4 to extend into the tube inserting groove 201 from the notch 22; a pipe joint nut 7 is sleeved at the right end of the movable pipe 1; the outer side of the right end of the movable pipe 1 is provided with a first convex ring 11 and a second convex ring 12, and the pipe joint screw cap 7 is positioned between the first convex ring 11 and the second convex ring 12.
The notch 22 comprises a first notch 22a arranged on the outer circumferential side surface of the inner sleeve 2 and a second notch 22b used for communicating the first notch 22a with the annular cutting groove 21, the pressing block 4 comprises a pressing block body 4a which is connected in the first notch 22a in a sliding manner along the radial direction of the inner sleeve 2, a lug 4b which penetrates through the second notch 22b and extends into the annular cutting groove 21 is arranged on the pressing block body 4a, a first inclined surface 4b1 is arranged on the lug 4b, and a first conical surface 1a matched with the first inclined surface 4b1 is arranged on the outer side of the left end of the moving pipe 1; a plurality of convex teeth 4c are uniformly arranged on the outer side of the briquetting body 4a along the axial direction of the inner sleeve 2 at intervals; set up dogtooth 4c and can increase the frictional resistance between briquetting 4 and the 6 inside walls of high pressure hose to effectively guarantee the connection of high pressure hose 6.
The inner side of the left end of the joint outer sleeve 3 is provided with a second conical surface 31, and the high-pressure hose 6 can be conveniently inserted into the cannula slot 201 by the second conical surface 31. The outer side of the left end of the inner sleeve 2 is provided with a third conical surface 2a, and the third conical surface 2a is arranged to facilitate the insertion of the inner sleeve 2 into the high-pressure hose 6.
When the hydraulic rubber hose joint is used for piping, firstly, the high-pressure hose 6 with the corresponding length is cut according to the distance between the hydraulic system interfaces, as shown in fig. 1, one end of the high-pressure hose 6 is inserted into the bottom of the right end of the pipe inserting groove 201, the joint outer sleeve 3 is rotated, and due to the threaded fit between the joint outer sleeve 3 and the inner sleeve 2, the joint outer sleeve 3 moves leftwards, so that the sealing ring 5 is extruded to deform and protrude outwards, as shown in fig. 2, and the high-pressure hose is extruded to be sealed.
After the joint outer sleeve 3 rotates to the position, the pipe 1 is rotationally moved, due to the fact that the pipe 1 is moved to be in threaded fit with the inner sleeve 2, the pipe 1 is moved leftwards relative to the inner sleeve 2, the pipe 1 is moved leftwards to enable the first conical surface 1a to be in contact with the first inclined surface 4b1, the pipe 1 continues to move leftwards to push the pressing block 4 out of the notch 22, the inner side wall of the high-pressure hose 6 located in the pipe inserting groove 201 is extruded by the convex teeth 4c to enable the inner side wall to deform to complete locking, connection between the high-pressure hose 6 and the joint is achieved, the connected hydraulic hose is connected into a hydraulic system to be normally used, the customization link is saved, and the pipe matching efficiency is greatly improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. An easily-installed hydraulic pipe joint for engineering machinery comprises an inner sleeve, wherein a joint outer sleeve is in threaded connection with the outer circumferential side surface of the inner sleeve close to the right end, and an annular pipe inserting groove is formed between the joint outer sleeve and the inner sleeve; the inner sleeve is characterized in that an annular cutting groove is formed in the inner side wall of the inner sleeve, a plurality of notches are uniformly formed in the side wall of the inner sleeve at intervals along the circumferential direction, the notches are communicated with the cannula groove and the annular cutting groove, and the notches are located at the left end of the annular cutting groove; a pressing block is connected in each notch in a sliding manner along the radial direction of the inner sleeve, a moving pipe is connected to the right end opening of the annular notch in a threaded manner, and the left end of the moving pipe extends into the annular notch to control the pressing block to extend into the tube inserting groove from the notch; the right end of the movable pipe is sleeved with a pipe joint nut;
the notch is including setting up the first notch on the outer circumference side of inner tube to and be used for communicateing the second notch of first notch and annular grooving, the briquetting includes along the intraductal radial sliding connection of interior sheathed tube briquetting body in first notch, be equipped with the lug that passes the second notch and stretch into in the annular grooving on the briquetting body, be equipped with first inclined plane on the lug, the left end outside of removing the pipe be equipped with first inclined plane complex first conical surface.
2. The easy-to-install hydraulic pipe joint for engineering machinery according to claim 1, wherein the inner sleeve is sleeved with a sealing ring on the outer circumferential side surface close to the joint outer sleeve, and the joint outer sleeve presses the sealing ring to protrude outwards when moving leftwards along the axial direction of the inner sleeve.
3. The easy-to-install hydraulic pipe joint for construction machinery according to claim 1, wherein the outer side of the pressure block body is provided with a plurality of convex teeth uniformly spaced along the axial direction of the inner sleeve.
4. The easy-to-install hydraulic pipe joint for construction machinery as claimed in claim 1, wherein the joint housing is provided with a second tapered surface on the inside of the left end thereof.
5. The easy-to-install hydraulic pipe joint for engineering machinery as claimed in claim 1, wherein a third tapered surface is provided on the outer side of the left end of the inner sleeve.
6. The easy-to-install hydraulic pipe joint for construction machinery as claimed in claim 1, wherein the right end of the moving pipe is provided at an outer side thereof with a first male ring and a second male ring, and the pipe joint nut is located between the first male ring and the second male ring.
7. The easy-to-install hydraulic pipe joint for construction machinery according to claim 1, wherein the sealing ring is made of a rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010444568.8A CN111578020B (en) | 2020-05-23 | 2020-05-23 | Easily-installed hydraulic pipe joint for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010444568.8A CN111578020B (en) | 2020-05-23 | 2020-05-23 | Easily-installed hydraulic pipe joint for engineering machinery |
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| Publication Number | Publication Date |
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| CN111578020A CN111578020A (en) | 2020-08-25 |
| CN111578020B true CN111578020B (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010444568.8A Active CN111578020B (en) | 2020-05-23 | 2020-05-23 | Easily-installed hydraulic pipe joint for engineering machinery |
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| CN (1) | CN111578020B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320679B (en) * | 2021-12-20 | 2022-08-26 | 广东省华方科学技术院 | Fuel oil device |
| CN116293136B (en) * | 2023-05-17 | 2024-03-01 | 中金液压胶管股份有限公司 | Connection structure is used in installation of hydraulic pressure rubber tube |
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| CN1250512A (en) * | 1997-03-18 | 2000-04-12 | 乌波诺尔创新股份公司 | Method for making a pipe connection, and a pipe connection |
| EP1236947A1 (en) * | 2001-03-03 | 2002-09-04 | Anton Hummel Verwaltungs GmbH | Threaded clamping connector provided with a supporting sleeve |
| DE102004002324B3 (en) * | 2004-01-16 | 2005-01-13 | Lac Tec GmbH Gesellschaft für moderne Lackiertechnik | Paint line for applying paint has endpiece with sector inserted between jacket and hose |
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| Publication number | Publication date |
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| CN111578020A (en) | 2020-08-25 |
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Effective date of registration: 20210929 Address after: 313000 Lincheng town industrial concentration zone, Changxing County, Huzhou City, Zhejiang Province Applicant after: Zhejiang Paz Seiko Co., Ltd Address before: 315000 No. 510 Chuangyuan Road, Ningbo National High-tech Zone, Zhejiang Province Applicant before: Shao Likun |
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