CN211422803U

CN211422803U - Low-pressure air supply device of diesel engine air inlet pipe

Info

Publication number: CN211422803U
Application number: CN202020006940.2U
Authority: CN
Inventors: 宁海强; 黄学卫; 张绍荣; 陈磊; 王行; 李舒
Original assignee: Army Military Transportation University of PLA Zhenjiang
Current assignee: Army Military Transportation University of PLA Zhenjiang
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-09-04
Anticipated expiration: 2030-01-02

Abstract

The utility model discloses a low-pressure air supplement device of a diesel engine intake pipe, which belongs to the technical field of diesel engines, and comprises a connecting pipe, wherein a connecting threaded pipe is arranged on the outer side wall of one side of the connecting pipe, a connecting threaded sleeve is sleeved on the outer side of the connecting threaded pipe, gas pipes are arranged on the left and right inner side walls of the connecting pipe, two sealing nozzles are connected inside the gas pipes, a sealing plug is arranged on one side, away from each other, of the two sealing nozzles, a piston is connected inside the other side of the connecting pipe, the connecting threaded pipe and the connecting threaded sleeve are arranged on the outer side of the connecting pipe, the two structures are mutually matched, so that when the connecting pipe is connected with a diesel engine intake pipe, only the threaded pipe which is the same as the connecting threaded pipe is fixed on the diesel engine intake pipe, simple structure, simple to operate, excellent in use effect.

Description

Low-pressure air supply device of diesel engine air inlet pipe

Technical Field

The utility model belongs to the technical field of the diesel engine, concretely relates to low pressure air supplement unit of diesel engine intake pipe.

Background

The working of the diesel engine is completed by four processes of air intake, compression, work application and exhaust, the four processes form a working cycle, and in the air intake process of the diesel engine, the pressure of an air intake pipe is insufficient, so that the service life of the diesel engine is easily influenced, and therefore a low-pressure air supply device is often required to be used.

The prior art has the following problems: the low-pressure air supplement device of the existing diesel engine air inlet pipe is complex to install and poor in use effect.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a low pressure air supplement unit of diesel engine intake pipe has simple to operate, excellent in use effect and the good characteristics of filter effect.

In order to achieve the above object, the utility model provides a following technical scheme: a low-pressure air supplement device of a diesel engine air inlet pipe comprises a connecting pipe, wherein a connecting threaded pipe is installed on the outer side wall of one side of the connecting pipe, a connecting threaded sleeve is sleeved on the outer side of the connecting threaded pipe, air conveying pipes are arranged on the left and right inner side walls of the connecting pipe, sealing nozzles are connected inside the two air conveying pipes, sealing plugs are installed on the sides, away from each other, of the two sealing nozzles, a piston is connected inside the other side of the connecting pipe, a hydraulic telescopic rod is fixed below the piston, a cylinder is fixed below the connecting pipe, air holes are formed in the left and right side walls of the cylinder by the upper side, moving grooves are formed in the sides, away from the hydraulic telescopic rod, of the left and right side walls of the cylinder by the lower side and away from the hydraulic telescopic rod, moving blocks are connected inside the two, an electric telescopic rod is fixed below each of the two movable plates, a sealing plate is fixed above each of the two movable plates, a fixed sleeve is installed outside the cylinder, air inlet holes are formed in the left side wall and the right side wall of the fixed sleeve respectively near the lower portions, filter shells are fixed inside the two air inlet holes respectively, one ends of the two filter shells are provided with air inlet ends, the other ends of the two filter shells are provided with air outlet ends, a coarse filter screen is fixed on one side, close to the corresponding air outlet end, of the air inlet ends of the two filter shells, a fine filter screen is fixed on one side, close to the corresponding air outlet end, of the coarse filter screen of the two filter shells, two inserting holes are formed in one end, away from each other, of the two filter shells, an inserting rod is inserted into each inserting hole, a fixed groove is formed in one end of the inserting rod, and a limiting groove is formed, the limiting groove is elastically connected with the inserted bar through a spring, limiting sliding grooves are formed in two inner side walls of one side, away from the spring, of the limiting groove, and limiting blocks are fixed on the inserted bar and correspond to the two limiting sliding grooves.

Preferably, the filter housing is provided with a T-shaped structure.

Preferably, the fine filter screen and the coarse filter screen are connected with the filter shell through fastening rings, and the fine filter screen and the coarse filter screen are fastened with the fastening rings through mounting bolts.

Preferably, the air outlet end is arranged in a conical structure.

Preferably, when the filter shell is in a fixed state, the outer side wall of the inserted link is tightly attached to the inner side wall of the inserted link, and the outer side wall of the inserted link is tightly attached to the inner side wall of the fixed groove.

Preferably, when one side wall of the limiting block close to the inserted link is tightly attached to one side wall of the limiting sliding groove close to the inserted link, the inserted link is completely drawn out of the insertion hole.

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

1. the utility model discloses the connecting pipe outside is through setting up connecting thread pipe and connecting thread sleeve, and two kinds of structures are mutually supported for the connecting pipe only needs be fixed with the screwed pipe the same with connecting thread pipe in the diesel engine intake pipe when connecting the diesel engine intake pipe, alright be linked together connecting pipe and diesel engine intake pipe with using connecting thread sleeve, simple structure, simple to operate, excellent in use effect.

2. The air inlet of the utility model is internally provided with the filtering shell, the air inlet end, the coarse filtering net, the fine filtering net and the air outlet end, and various structures are mutually matched, so that the entering air can be filtered, and the air inlet can be prevented from being blocked by impurities in the air; the air outlet end is provided with the conical structure, so that the impact force of incoming wind power can be effectively weakened, and the deformation influence on the side walls of the fixed sleeve and the cylinder body due to large wind power impact force is avoided; through setting up spacing groove, spring, inserted bar, stopper, spacing spout and spliced eye, multiple structure mutually supports, makes to filter the casing and has dismantled and assembled function, and then conveniently dismantles the washing or change to filtering the casing, and then makes the filter effect better.

Drawings

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

FIG. 2 is an enlarged schematic view of FIG. 1A according to the present invention;

in the figure: 1. a vent hole; 2. a sealing plate; 3. moving the plate; 4. a moving groove; 5. an electric telescopic rod; 6. a barrel; 7. a hydraulic telescopic rod; 8. a moving block; 9. fixing the sleeve; 10. a piston; 11. a gas delivery pipe; 12. a sealing plug; 13. a connecting pipe; 14. connecting a threaded pipe; 15. connecting a threaded sleeve; 16. sealing the nozzle; 17. an air inlet; 18. a filter housing; 19. a fine filter screen; 20. an air outlet end; 21. a spring; 22. a limiting groove; 23. a limiting block; 24. inserting holes; 25. a coarse filter screen; 26. an air inlet end; 27. inserting a rod; 28. fixing grooves; 29. and a limiting sliding groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-2, the present invention provides the following technical solutions: a low-pressure air supplement device of a diesel engine air inlet pipe comprises a connecting pipe 13, a connecting threaded pipe 14 is installed on the outer side wall of one side of the connecting pipe 13, a connecting threaded sleeve 15 is sleeved on the outer side of the connecting threaded pipe 14, air pipes 11 are respectively arranged on the left inner side wall and the right inner side wall of the connecting pipe 13, sealing nozzles 16 are respectively connected inside the two air pipes 11, sealing plugs 12 are respectively installed on the sides, far away from each other, of the two sealing nozzles 16, a piston 10 is connected inside the other side of the connecting pipe 13, a hydraulic telescopic rod 7 is fixed below the piston 10, a cylinder 6 is fixed below the connecting pipe 13, vent holes 1 are respectively formed on the left side wall and the right side wall of the cylinder 6, moving grooves 4 are respectively formed on the sides, far away from the hydraulic telescopic rod 7, moving blocks 8 are respectively connected inside the two moving grooves 4 in a sliding, electric telescopic rods 5 are fixed below the two moving plates 3, sealing plates 2 are fixed above the two moving plates 3, a fixing sleeve 9 is installed on the outer side of the cylinder 6, air inlet holes 17 are formed in the left side wall and the right side wall of the fixing sleeve 9 close to the lower side, filter shells 18 are fixed inside the two air inlet holes 17, the filter shells can be conveniently matched with an insertion rod 27 for fixing when a coarse filter screen 25 and a fine filter screen 19 are installed conveniently, in the embodiment, preferably, the filter shells 18 are in a T-shaped structure, air inlet ends 26 are arranged at one ends of the two filter shells 18, air outlet ends 20 are arranged at the other ends of the two filter shells 18, in order to weaken the impact force of incoming wind power, in the embodiment, preferably, the air outlet ends 20 are in a conical structure, the coarse filter screen 25 is fixed on one side, close to the corresponding air outlet end 20, of, in the present embodiment, preferably, the fine filter net 19 is fixed on one side of the coarse filter net 25 close to the corresponding air outlet end 20 on the two filter housings 18, in order to facilitate the disassembly and assembly of the fine filter net 19 and the coarse filter net 25 when the fixing performance is good, preferably, the fine filter net 19 and the coarse filter net 25 are connected with the filter housings 18 through fastening rings, the fine filter net 19 and the coarse filter net 25 are fastened with the fastening rings through mounting bolts, two insertion holes 24 are respectively formed at the ends of the two filter housings 18 far away from each other, an insertion rod 27 is inserted into any insertion hole 24, a fixing groove 28 is formed at one end of the insertion rod 27, in order to improve the connection strength of the insertion rod 27, in the present embodiment, preferably, when the filter housings 18 are located at a fixed state, the outer side wall of the insertion rod 27 is tightly attached to the inner side wall of the insertion hole 24, the outer, spacing groove 22 has been seted up to the other end of inserted bar 27, through spring 21 elastic connection between spacing groove 22 and the inserted bar 27, spacing spout 29 has all been seted up to two inside walls in one side that spring 21 was kept away from to spacing groove 22, just the position that corresponds two spacing spouts 29 on the inserted bar 27 all is fixed with stopper 23, for the convenience take out filter housing 18, in this embodiment, preferably, when stopper 23 was close to a lateral wall of inserted bar 27 and hugs closely spacing spout 29 and is close to a lateral wall of inserted bar 27, spliced eye 24 was taken out completely to inserted bar 27.

The utility model discloses a theory of operation and use flow: the utility model discloses assembly work: the same threaded pipe as the connecting threaded pipe 14 is fixed on the diesel engine air inlet pipe, the threaded pipe on the diesel engine air inlet pipe is sleeved inside the connecting threaded sleeve 15, the connecting pipe 13 is communicated with the diesel engine air inlet pipe, the assembly work is finished and the air is ready to use, when the air filter is used, outside air is filtered through the filter shell 18 inside the air inlet hole 17 (the filtering steps are that air enters through the air inlet end 26, is primarily filtered through the coarse filter screen 25, is secondarily filtered through the fine filter screen 19, and finally filtered air is discharged through the air outlet end 20), the filtered air enters into the fixed sleeve 9, the air entering into the fixed sleeve 9 enters into the barrel 6 through the vent hole 1 of the barrel 6 (in the process, the electric telescopic rod 5 drives the movable plate 3 to move up and down, the movable plate 3 drives the sealing plate 2 to move up and down, the size of the vent hole 1 is controlled while the sealing, further realizing the function of controlling the speed of air entering the cylinder 6), the air entering the cylinder 6 enters the connecting pipe 13 through the air pipe 11, the air entering the connecting pipe 13 directly enters the air inlet pipe of the diesel engine, so that air supplement is realized, when the air inlet pipe of the diesel engine needs to enhance the air pressure of the air flowing in, the air pipe 11 is sealed through the matching of the sealing nozzle 16 and the sealing plug 12, the hydraulic telescopic rod 7 is operated to move downwards, the hydraulic telescopic rod 7 drives the piston 10 to move downwards and separate from the range of the connecting pipe 13, so that the air entering the cylinder 6 enters the connecting pipe 13, then the hydraulic telescopic rod 7 moves upwards, the hydraulic telescopic rod 7 drives the piston 10 to move upwards, the air entering the connecting pipe 13 is rapidly pushed into the air inlet pipe of the diesel engine, and the power of; in the process of long-term air supply, when the coarse filter screen 25 and the fine filter screen 19 need to be cleaned or replaced, the inserting rod 27 is pulled outwards, the inserting rod 27 is separated from the inserting hole 24 of the filter shell 18, the filter shell 18 is taken down, the coarse filter screen 25 and the fine filter screen 19 inside are cleaned or replaced, the filter shell 18 is placed into the air inlet hole 17 after work is completed, the inserting rod 27 is aligned to the inserting hole 24, the inserting rod 27 penetrates through the inserting hole 24 under the matching action of the spring 21 of the limiting groove 22, the limiting block 23 and the limiting sliding groove 29 and is inserted into the fixing groove 28, the filter shell 18 is fixed, and cleaning or replacing operation is completed.

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

1. The utility model provides a low pressure air supplement unit of diesel engine intake pipe, includes connecting pipe (13), its characterized in that: a connecting threaded pipe (14) is installed on the outer side wall of one side of the connecting pipe (13), a connecting threaded sleeve (15) is sleeved on the outer side of the connecting threaded pipe (14), gas conveying pipes (11) are arranged on the inner side walls of the left side and the right side of the connecting pipe (13), sealing nozzles (16) are connected inside the two gas conveying pipes (11), a sealing plug (12) is installed on one side, away from each other, of the two sealing nozzles (16), a piston (10) is connected inside the other side of the connecting pipe (13), a hydraulic telescopic rod (7) is fixed below the piston (10), a barrel body (6) is fixed below the connecting pipe (13), vent holes (1) are formed in the side walls of the left side and the right side of the barrel body (6) by the upper side, a moving groove (4) is formed in one side wall of the side walls of the left side and the right, the inner parts of the two moving grooves (4) are respectively connected with a moving block (8) in a sliding manner, one side, far away from each other, of each of the two moving blocks (8) is fixedly provided with a moving plate (3), the lower parts of the two moving plates (3) are respectively fixedly provided with an electric telescopic rod (5), the upper parts of the two moving plates (3) are respectively fixedly provided with a sealing plate (2), the outer side of the barrel body (6) is provided with a fixed sleeve (9), the left side wall and the right side wall of the fixed sleeve (9) are respectively provided with an air inlet hole (17) close to the lower parts, the inner parts of the two air inlet holes (17) are respectively fixedly provided with a filtering shell (18), one end of each filtering shell (18) is provided with an air inlet end (26), the other end of each filtering shell (18) is provided with an air outlet end (20), one side, close to the corresponding air outlet end (, on two filter housing (18) thick filter screen (25) are close to the one side that corresponds end (20) of giving vent to anger all to be fixed with thin filter screen (19), two filter housing (18) one end of keeping away from each other has all seted up two spliced eye (24), arbitrary the inside of spliced eye (24) is all pegged graft and has been had inserted bar (27), fixed slot (28) have been seted up to the one end of inserted bar (27), spacing groove (22) have been seted up to the other end of inserted bar (27), through spring (21) elastic connection between spacing groove (22) and inserted bar (27), spacing spout (29) have all been seted up to two inside walls in one side that spring (21) were kept away from in spacing groove (22), on inserted bar (27) and the position that corresponds two spacing spout (29) all be fixed with stopper (23).

2. The low-pressure air supplement device of the diesel engine air inlet pipe of claim 1, characterized in that: the filtering shell (18) is arranged in a T-shaped structure.

3. The low-pressure air supplement device of the diesel engine air inlet pipe of claim 1, characterized in that: the fine filter screen (19) and the coarse filter screen (25) are connected with the filter shell (18) through fastening rings, and the fine filter screen (19) and the coarse filter screen (25) are fastened with the fastening rings through mounting bolts.

4. The low-pressure air supplement device of the diesel engine air inlet pipe of claim 1, characterized in that: the air outlet end (20) is arranged in a conical structure.

5. The low-pressure air supplement device of the diesel engine air inlet pipe of claim 1, characterized in that: when the filter shell (18) is in a fixed state, the outer side wall of the inserted rod (27) is tightly attached to the inner side wall of the inserted hole (24), and the outer side wall of the inserted rod (27) is tightly attached to the inner side wall of the fixed groove (28).

6. The low-pressure air supplement device of the diesel engine air inlet pipe of claim 1, characterized in that: when one side wall of the limiting block (23) close to the inserting rod (27) is tightly attached to one side wall of the limiting sliding groove (29) close to the inserting rod (27), the inserting rod (27) is completely drawn out of the inserting hole (24).