CN-224200722-U - Marine engine adjustable flexible connection exhaust bellows

Abstract

The utility model discloses an adjustable flexible connection exhaust corrugated pipe of a marine engine, belongs to the technical field of pipeline connection, and solves the problem that efficiency is low due to the fact that two pipelines are connected through flanges and bolt holes on the two flanges need to be aligned. This marine engine adjustable flexible connection exhaust bellows body, including the bellows body, the both ends of bellows body are equipped with first flange, second flange respectively, first flange on be equipped with a plurality of first flange holes that are circumference equidistant range, second flange on be equipped with a plurality of second flange holes that are circumference equidistant range, first flange include flange, flange fixed mounting in the one end of bellows, flange on be equipped with the heavy groove. According to the adjustable flexible connection exhaust corrugated pipe for the marine engine, disclosed by the utility model, the effective working efficiency is improved.

Inventors

• CHEN CHENGLIU

Assignees

• 广西玉柴船电动力股份有限公司

Dates

Publication Date

20260505

Application Date

20250630

Claims (6)

1. 1. The utility model provides an adjustable flexonics exhaust bellows of marine engine, includes bellows body (3), the both ends of bellows body (3) are equipped with first flange (1), second flange (2) respectively, first flange (1) on be equipped with a plurality of first flange holes that are circumference equidistant range, second flange (2) on be equipped with a plurality of second flange holes that are circumference equidistant range, a serial communication port, first flange (1) include mounting flange (11), movable flange (12), mounting flange (11) fixed mounting in the one end of bellows body (3), movable flange (12) on be equipped with heavy groove (6), the diameter of heavy groove (6) and the diameter of mounting flange (11) suited, just mounting flange (11) rotate and install in heavy groove (6), a plurality of first flange holes are located movable flange (12) in the mounting flange (11) outside, movable flange (12) on be equipped with first flange (19) inner rotating flange (13), first connecting flange (19) are equipped with on the side wall (13), first connecting flange (19) are equipped with the side wall (13) of first connecting flange (13), side wall (20) The second connecting plate (14) is provided with mounting holes (15), the mounting holes (15) are internally provided with studs (16), the studs (16) sequentially penetrate through the first connecting plate (13) and the second connecting plate (14), and fastening nuts (17) are in threaded connection with the studs (16) on two sides of the first connecting plate (13) and the second connecting plate (14).
2. 2. The adjustable flexible connection exhaust corrugated pipe for the marine engine according to claim 1, wherein the first groove (19) is internally provided with a first rotating rod (7), the first connecting plate (13) is rotatably installed in the first groove (19) through the first rotating rod (7), the second groove (20) is internally provided with a second rotating rod (8), the second connecting plate (14) is rotatably installed in the second groove (20) through the second rotating rod (8), and torque springs are arranged between the first connecting plate (13) and the first rotating rod (7), and between the second connecting plate (14) and the second rotating rod (8).
3. 3. A marine engine adjustable flexible connection exhaust bellows according to claim 2, characterized in that the direction of rotation of the first connection plate (13) is opposite to the direction of rotation of the second connection plate (14).
4. 4. A marine engine adjustable flexible connection exhaust bellows according to claim 3, characterized in that one end of the first connection plate (13) and one end of the second connection plate (14) are provided with connection rods (18).
5. 5. The adjustable flexible connection exhaust corrugated pipe for the marine engine according to claim 1, wherein the heat insulation cotton (10) is wrapped on the circumferential surface of the corrugated pipe body (3).
6. 6. The adjustable flexible connection exhaust corrugated pipe for the marine engine according to claim 1, wherein a third groove (21) is formed in the end face of the fixing flange (11), and a sealing ring (9) is clamped in the third groove (21).

Description

Marine engine adjustable flexible connection exhaust bellows Technical Field The utility model relates to the technical field of pipeline connection, in particular to an adjustable flexible connection exhaust corrugated pipe of a marine engine. Background The pipe connection comprises connection of a pipe and a pipe, connection of a pipe and a valve, connection of an elbow and a pipe and connection of a valve, wherein the connection of the pipe and the pipe is usually through flange connection, as shown in fig. 1, an exhaust manifold 5 and an engine vortex rear pipe 4 are communicated through a corrugated pipe body 3, the corrugated pipe body 3 is connected with the engine vortex rear pipe 4 and the exhaust manifold 5 through flanges, and the flanges are usually welded at ports of a connecting piece (the corrugated pipe body 3). The conventional corrugated pipe connection scheme has the advantages that the position of the exhaust manifold can be determined on site after the engine is installed in place, the on-site measurement and lofting are performed, and then the welding is performed to manufacture the exhaust manifold; and when the pipeline has the return bend, and the space is less, then be difficult to rotate, the adjustment position leads to the screw position between the flange to appear the deviation, needs the adjustment, more is wasted time and energy. Disclosure of utility model The technical problem to be solved by the utility model is to provide the adjustable flexible connection exhaust corrugated pipe of the marine engine, which aims at the defects in the prior art, can realize the advanced prefabrication of an exhaust manifold, the on-site adjustment and the installation, reduce the repair work and improve the efficiency and the working efficiency. The technical scheme is that the adjustable flexible connection exhaust corrugated pipe of the marine engine comprises a corrugated pipe body, wherein first connecting flanges and second connecting flanges are respectively arranged at two ends of the corrugated pipe body, a plurality of first connecting flange holes which are arranged at equal intervals in the circumference are formed in the first connecting flanges, a plurality of second connecting flange holes which are arranged at equal intervals in the circumference are formed in the second connecting flanges, the first connecting flanges comprise fixing flanges and movable flanges, the fixing flanges are fixedly arranged at one end of the corrugated pipe, the movable flanges are provided with countersinks, the diameters of the countersinks are matched with the diameters of the fixing flanges, the fixing flanges are rotatably arranged in the countersinks, the first connecting flange holes are located on the movable flanges at the outer sides of the fixing flanges, first grooves are formed in the side walls of the movable flanges, second grooves are formed in the side walls of the second connecting flanges in a rotating mode, second connecting plates are rotatably arranged in the second grooves, the first connecting plates are provided with first connecting plates and second connecting plates, the first connecting plates are provided with threaded studs penetrating through the first connecting plates and the second connecting plates are sequentially provided with threaded studs. As a further improvement, the first groove in be equipped with first bull stick, first connecting plate rotate through first bull stick and install in first groove, the second recess in be equipped with the second bull stick, the second connecting plate rotate through the second bull stick and install in the second groove, first connecting plate and first bull stick, second connecting plate and second bull stick between all be equipped with torque spring. Further, the rotation direction of the first connecting plate is opposite to the rotation direction of the second connecting plate. Further, one end of the first connecting plate and one end of the second connecting plate are respectively provided with a connecting rod. Further, the periphery of the corrugated pipe body is wrapped with heat insulation cotton. Further, a third groove is formed in the end face of the fixing flange, and a sealing ring is clamped in the third groove. Advantageous effects Compared with the prior art, the utility model has the following advantages: 1. According to the adjustable flexible connection exhaust corrugated pipe for the marine engine, the movable flange can rotate 360 degrees around the central axis of the movable flange, the circumferential positions of the first connection flange holes on the first connection flange are adjusted to correspond to the bolt holes on the exhaust manifold connection flange one by one, the exhaust manifold is prefabricated in advance, the installation is adjusted on site, the repair work is reduced, and the efficiency and the work efficiency are improved. 2. According to the adjustable flexible connec