CN-224214909-U - Aviation hydraulic pipeline connecting assembly

CN224214909UCN 224214909 UCN224214909 UCN 224214909UCN-224214909-U

Abstract

The utility model relates to the technical field of aviation hydraulic pipelines, in particular to an aviation hydraulic pipeline connecting assembly which comprises a first connecting piece and a second connecting piece arranged at one end of the first connecting piece, wherein a locking clamping piece is arranged on the outer peripheral surface of one end, close to the second connecting piece, of the first connecting piece, a locking mechanism is arranged in the locking clamping piece, a limiting groove is formed in the end surface, close to the first connecting piece, of the second connecting piece, the locking mechanism can be clamped into the limiting groove to connect and limit the first connecting piece and the second connecting piece, a connecting pipe extends out of the connecting pipe, the connecting pipe can extend into the second connecting piece, and the outer wall of the connecting pipe can be attached to the inner wall of the second connecting piece. The utility model has good sealing effect, reduces the requirement on processing precision and is convenient to install and detach.

Inventors

BIAN GUIXUE
HUANG HAILIANG
ZHANG DING
LI YIZHE
WU BIN
WANG XI

Assignees

中国人民解放军海军航空大学

Dates

Publication Date: 20260508
Application Date: 20250626

Claims (10)

1. An aviation hydraulic pipeline connecting component comprises a first connecting piece (1) and a second connecting piece (2) arranged at one end of the first connecting piece (1), and is characterized in that, The outer peripheral surface of one end, close to the second connecting piece (2), of the first connecting piece (1) is provided with a locking clamping piece (4), a locking mechanism is arranged in the locking clamping piece (4), the end surface, close to the first connecting piece (1), of the second connecting piece (2) is provided with a limiting groove (9), and the locking mechanism can be clamped into the limiting groove (9) to connect and limit the first connecting piece (1) with the second connecting piece (2); One end of the first connecting piece (1) close to the second connecting piece (2) extends out of the connecting pipe (3), the connecting pipe (3) penetrates out of the locking clamping piece (4), the connecting pipe (3) can extend towards the inside of the second connecting piece (2), and the outer wall of the connecting pipe (3) can be attached to the inner wall of the second connecting piece (2).
2. The aviation hydraulic pipeline connecting assembly according to claim 1, wherein a positioning clamping groove (301) with a stepped cross section is formed in the outer peripheral surface of the connecting pipe (3), sealing ribs (302) are arranged on the outer surface of the positioning clamping groove (301), and the positioning clamping groove (301) and the sealing ribs (302) are tightly attached to grooves in the inner wall of the connecting piece II (2).
3. The aviation hydraulic pipeline connection assembly according to claim 2, wherein the outer peripheral surface of the connecting pipe (3) is further provided with an inclined slope (303), the outer peripheral dimension of the inclined slope (303) gradually decreases along the direction from the first connecting piece (1) to the second connecting piece (2), the inclined slope (303) is arranged on one side, away from the second connecting piece (2), of the positioning clamping groove (301), and the sealing ferrule (304) is sleeved on the outer surface of the inclined slope (303).
4. The aviation hydraulic pipeline connection assembly according to claim 1, wherein a plurality of positioning grooves (5) are formed in the locking clamping piece (4), the positioning grooves (5) are distributed around the circumferential direction of the locking clamping piece (4), each positioning groove (5) penetrates through the locking clamping piece (4) along the axial direction, and the cross section of each positioning groove (5) is of a T-shaped structure; The locking mechanism comprises an adjusting plate (6), the adjusting plate (6) is slidably clamped in the positioning groove (5), a return spring (8) is arranged on one side, facing the outer peripheral surface of the locking clamping piece (4), of the adjusting plate (6), the other end of the return spring (8) is abutted to the positioning groove (5), one side, close to the second connecting piece (2), of the adjusting plate (6) is connected with a limiting clamping piece (7), and the limiting clamping piece (7) extends out of the positioning groove (5).
5. An aviation hydraulic pipeline connection assembly according to claim 4, characterized in that the cross section of the limiting groove (9) is of an L-shaped structure, and the limiting clamp (7) can be slidably clamped in the limiting groove (9).
6. The connection assembly according to claim 4, characterized in that the adjusting plate (6) is provided with a push-in clip (10) on the side opposite the limiting clip (7), the side of the push-in clip (10) remote from the adjusting plate (6) being inclined towards the outer circumferential surface of the locking clip (4).
7. The aviation hydraulic pipeline connecting assembly according to claim 6, wherein the outer peripheral surface of the locking clamping piece (4) is sleeved with a connecting sleeve (11), the axial length of the connecting sleeve (11) is larger than that of the locking clamping piece (4), the inner wall of one end, far away from the second connecting piece (2), of the connecting sleeve (11) is sleeved with the outer peripheral surface of the first connecting piece (1), the inner end surface, far away from the second connecting piece (2), of the connecting sleeve (11) is provided with an inclined piece (12), and the inclined piece (12) is matched with the pushing clamping piece (10).
8. The aviation hydraulic pipeline connection assembly according to claim 7, wherein the inner wall of the connection sleeve (11) is provided with threads, the outer circumferential surface of the second connection member (2) is provided with positioning threads (13), and the sleeve (11) can be in threaded connection with the second connection member (2).
9. An aviation hydraulic line connection assembly according to claim 4, characterized in that the adjusting plate (6) is provided with two baffles (14) on both sides of the return spring (8), the two baffles (14) being arranged in the axial direction.
10. An aircraft hydraulic line connection assembly according to claim 3, characterized in that the cross section of the sealing collar (304) is of circular arc configuration.

Description

Aviation hydraulic pipeline connecting assembly Technical Field The utility model relates to the technical field of aviation hydraulic pipelines, in particular to an aviation hydraulic pipeline connecting assembly. Background The conduit refers to a conduit in the hydraulic system that carries the working fluid. The pipeline is a reasonably arranged pipeline system with respect to the pipeline. Because of the flexibility of the piping, piping is often used in hydraulic systems and the like for fluid driven machinery. In the aviation field, hydraulic pipeline systems have long suffered from the problem of "running, bleeding and leaking", which is more prominent than in other industries. The reason for this is that the aircraft operates in a complex high-altitude environment, and the hydraulic system is subjected to extreme changes of huge pressure and temperature, which aggravates the loss of the pipeline system. To cope with this problem, the pipe connectors currently manufactured have to be stored in a special way, i.e. in a liquid nitrogen environment. The preservation condition makes the pipeline connecting piece very inconvenient when installing and using, and in case ambient temperature exceeds the regulation scope, especially when too high, the pipe box can contract rapidly because of expend with heat and contract with cold principle, leads to whole connecting piece direct scrapping, has greatly increased cost and maintenance degree of difficulty. However, the sealing surface of the existing pipeline connecting piece is in a conical surface-conical surface form, the requirement of the structure on machining precision is high, and the sealing effect is greatly reduced due to fine machining errors, so that the pipeline connecting piece is difficult to meet the strict requirement of the aviation field on high sealing performance of a hydraulic system. Moreover, the pipeline connecting piece is connected through a plurality of groups of bolts in the installation process, and the pipeline connecting piece can be connected, but is inconvenient to install and maintain. Disclosure of utility model The utility model provides an aviation hydraulic pipeline connecting assembly, which aims to solve the technical problems that the processing precision requirement of the sealing surface of the existing pipeline connecting piece is high, and the installation and maintenance are inconvenient because the existing pipeline connecting piece is connected through a plurality of groups of bolts. In order to achieve the above purpose, the utility model adopts the following technical scheme: The aviation hydraulic pipeline connecting assembly comprises a first connecting piece and a second connecting piece arranged at one end of the first connecting piece, wherein a locking clamping piece is arranged on the outer peripheral surface of one end, close to the second connecting piece, of the first connecting piece, a locking mechanism is arranged in the locking clamping piece, a limiting groove is formed in the end face, close to the first connecting piece, of the second connecting piece, the locking mechanism can be clamped into the limiting groove to connect and limit the first connecting piece and the second connecting piece, a connecting pipe extends out of one end, close to the second connecting piece, of the first connecting piece, the connecting pipe penetrates out of the locking clamping piece, and can extend into the second connecting piece, and the outer wall of the connecting pipe can be attached to the inner wall of the second connecting piece. By adopting the above structure scheme, the first connecting piece and the second connecting piece are connected and limited by arranging the locking clamping piece and the locking mechanism on the outer peripheral surface of the first connecting piece and arranging the limiting groove on the two end surfaces of the first connecting piece, so that the locking mechanism can be clamped into the limiting groove. The traditional mode of multiunit bolted connection has been avoided, has simplified the installation, has reduced the installation degree of difficulty, also makes the maintenance more convenient simultaneously. The connecting pipe that connecting piece one extended can be to connecting piece two inside extension, and its outer wall and connecting piece two inner walls laminating, compare in traditional conical surface-conical surface seal structure, to the processing accuracy requirement reduction, even there is certain machining error, also can guarantee better laminating degree, and then improves sealed effect, satisfies the requirement of aviation field to hydraulic system high leakproofness. As a preferable implementation mode of the aviation hydraulic pipeline connecting assembly, a positioning clamping groove with a stepped cross section is formed in the outer peripheral surface of the connecting pipe, sealing ribs are arranged on the outer surface of the position