CN216691284U

CN216691284U - EGR outlet duct convenient to clearance inner wall attachment

Info

Publication number: CN216691284U
Application number: CN202123155719.7U
Authority: CN
Inventors: 杭永贵; 杭伟
Original assignee: Nantong Shenglide Metal Material Technology Co ltd
Current assignee: Nantong Shenglide Metal Material Technology Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-06-07
Anticipated expiration: 2031-12-16

Abstract

The EGR outlet pipe convenient for cleaning the inner wall attachments comprises a first outlet pipe, wherein an air inlet groove is formed in the first outlet pipe, a sealing plate is hermetically connected in the air inlet groove, and the top of the sealing plate is fixedly connected with a connecting rod. This EGR outlet duct convenient to clearance inner wall attachment stops when admitting air, and diaphragm downstream under the pulling of coupling spring this moment further makes the closing plate seal to the inside of air inlet duct, and the inside gas of first outlet duct can't flow back to in the EGR pipeline this moment to reached and avoided the waste gas backward flow, improved device safety in utilization's effect. Pressing down the gag lever post, first outlet duct and second outlet duct can separate this moment, and the outlet duct is divided into two parts from the centre, is convenient for clear up its inside to reached and be convenient for clear up the inside attachment of outlet duct, improved the effect of giving vent to anger efficiency and device life.

Description

EGR outlet duct convenient to clearance inner wall attachment

Technical Field

The utility model relates to the technical field of EGR (exhaust gas recirculation) air outlet pipes, in particular to an EGR air outlet pipe convenient for cleaning attachments on the inner wall.

Background

EGR is short for exhaust gas recirculation, which means that part of the exhaust gas from the engine is returned to the intake manifold and re-enters the cylinder together with fresh mixture. Since exhaust gas contains a large amount of polyatomic gas such as CO2, and gas such as CO2 cannot be combusted but absorbs a large amount of heat due to its high specific heat capacity, the maximum combustion temperature of the air-fuel mixture in the cylinder is lowered, and the amount of NOx generated is reduced.

The structure of current EGR outlet duct is comparatively simple and easy, only consider gas and fresh air mixture after the cooling, the waste gas backward flow has not been considered, the waste gas backward flow can flow to the preceding pipeline of turbine through the EGR pipeline, and then lead to the turbine to break down, and its inner wall of outlet duct after long-time the use has a large amount of attachments, not only influence the efficiency of giving vent to anger, still can reduce outlet duct life, current outlet duct is not convenient for clear up these adnexed impurity, for solving above-mentioned problem, we have provided an EGR outlet duct convenient to clear up the inner wall attachment.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, in order to solve the problems, the utility model provides the following technical scheme: an EGR outlet pipe convenient for cleaning attachments on the inner wall comprises a first outlet pipe, an air inlet groove is arranged in the first outlet pipe, the inside of the air inlet groove is hermetically connected with a sealing plate, the top of the sealing plate is fixedly connected with a connecting rod, the top of the connecting rod is fixedly connected with a transverse plate, the bottom of the transverse plate is fixedly connected with a connecting spring, one end of the first air outlet pipe is connected with a first fixed block in a sliding way, a fixed groove is arranged in the first fixed block, one end of the first air outlet pipe is connected with a second fixed block in a sliding way, the inside of the second fixed block is connected with a second air outlet pipe in a sliding way, a sealing washer is arranged inside the second fixed block, the top of the second fixed block is fixedly connected with a fixed plate, the fixed plate is characterized in that a groove is formed in the fixed plate, a supporting spring is fixedly connected to the inner portion of the groove, and a limiting rod is fixedly connected to one side, far away from the groove, of the supporting spring.

Furthermore, the air inlet groove is arranged at the position of an air inlet of the first air outlet pipe.

Furthermore, one side of the connecting spring, which is far away from the transverse plate, is fixedly connected inside the first air outlet pipe.

Furthermore, the first air outlet pipe and the second air outlet pipe are connected through a first fixing block and a second fixing block.

Furthermore, the inside of first fixed block is provided with the seal ring with the same size of second fixed block, seal ring is semi-circular, and the internal diameter of seal ring and the external diameter looks adaptation of first outlet duct and second outlet duct junction.

Furthermore, the volume of the fixing plate is matched with the volume of the vertical groove in the fixing groove.

Furthermore, the volume of gag lever post is less than the volume of recess, the volume of gag lever post and the volume looks adaptation of the inside cross slot of fixed slot, just gag lever post sliding connection is in the inside cross slot department of fixed slot.

Compared with the prior art, the EGR gas outlet pipe convenient for cleaning attachments on the inner wall has the following beneficial effects:

1. this EGR outlet duct convenient to clearance inner wall attachment, through first outlet duct and closing plate, coupling spring, the diaphragm, the closing plate, the cooperation of air inlet duct is used, waste gas admits air from the inlet end of first outlet duct, gaseous meeting promotion closing plate upward movement this moment, when stopping admitting air, diaphragm downstream under coupling spring's pulling this moment, further make the inside of closing plate sealed to the air inlet duct, the gaseous unable reflux of the inside of first outlet duct this moment in the EGR pipeline, thereby reached and avoided the waste gas backward flow, the effect of the safety in utilization of the device is improved.

2. This EGR outlet duct convenient to clearance inner wall attachment, through gag lever post and fixed slot, the fixed plate, the fixed slot, first fixed block, the second fixed block, first outlet duct, the cooperation of second outlet duct is used, press the gag lever post, the gag lever post moves down from the inside cross slot of fixed slot this moment, further make the gag lever post move to the inside of recess, the fixed plate is extracted from the inside perpendicular groove of fixed slot this moment, further make first fixed block and second fixed block separation, first outlet duct and second outlet duct can separate this moment, the outlet duct is divided into two parts from the middle, be convenient for clear up its inside, thereby reached the inside attachment of the outlet duct of being convenient for clear up, efficiency and device life's effect of giving vent to anger is improved.

Drawings

FIG. 1 is a schematic front view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a first outlet structure according to the present invention;

FIG. 3 is a schematic view of a connection structure between a first fixing block and a second fixing block according to the present invention;

FIG. 4 is a perspective view of a first fixing block according to the present invention;

FIG. 5 is a perspective view of a second fixing block according to the present invention;

fig. 6 is a perspective view of the fixing plate according to the present invention.

In the figure: 1. a first air outlet pipe; 2. an air inlet groove; 3. a sealing plate; 4. a connecting rod; 5. a transverse plate; 6. a connecting spring; 7. a first fixed block; 8. fixing grooves; 9. a second fixed block; 10. a second air outlet pipe; 11. a sealing gasket; 12. a fixing plate; 13. a groove; 14. a support spring; 15. a limiting rod.

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.

Referring to fig. 1-6, an EGR outlet duct convenient for cleaning attachments on inner wall comprises a first outlet duct 1, an air inlet groove 2 is provided inside the first outlet duct 1, the air inlet groove 2 is provided at the air inlet position of the first outlet duct 1, a sealing plate 3 is hermetically connected inside the air inlet groove 2, a connecting rod 4 is fixedly connected to the top of the sealing plate 3, a horizontal plate 5 is fixedly connected to the top of the connecting rod 4, a connecting spring 6 is fixedly connected to the bottom of the horizontal plate 5, one side of the connecting spring 6 away from the horizontal plate 5 is fixedly connected to the inside of the first outlet duct 1, one end of the first outlet duct 1 is slidably connected to a first fixing block 7, a fixing groove 8 is provided inside the first fixing block 7, one end of the first outlet duct 1 is slidably connected to a second fixing block 9, the inside of the second fixing block 9 is slidably connected to a second outlet duct 10, the first outlet duct 1 and the second outlet duct 10 are connected through the first fixing block 7 and the second fixing block 9, the inside of second fixed block 9 is equipped with seal ring 11, the inside of first fixed block 7 is provided with seal ring 11 with the same size of second fixed block 9, seal ring 11 is semi-circular, and seal ring 11's internal diameter and the external diameter looks adaptation of first outlet duct 1 and second outlet duct 10 junction, the top fixedly connected with fixed plate 12 of second fixed block 9, the volume of fixed plate 12 and the inside volume looks adaptation that erects the groove of fixed slot 8, recess 13 has been seted up to fixed plate 12's inside, recess 13's inside fixedly connected with supporting spring 14, one side fixedly connected with gag lever post 15 that recess 13 was kept away from to supporting spring 14, gag lever post 15's volume is less than recess 13, the volume of gag lever post 15 and the volume looks adaptation of the inside transverse groove of fixed slot 8, and 15 sliding connection of gag lever post are in the inside transverse groove department of fixed slot 8.

The working principle is that when the exhaust gas purifier is used, exhaust gas enters from the air inlet end of the first air outlet pipe 1, the sealing plate 3 is connected to the inside of the air inlet groove 2 in a sealing mode, so that the sealing plate 3 can be pushed to move upwards by the gas, the connecting rod 4 is fixedly connected to the top of the sealing plate 3, and the transverse plate 5 is fixedly connected to the top of the connecting rod 4, so that the transverse plate 5 can also move upwards, and the exhaust gas can enter the inside of the first air outlet pipe 1.

When stopping admitting air, because the bottom fixedly connected with connecting spring 6 of diaphragm 5, one side fixed connection that connecting spring 6 kept away from diaphragm 5 is in the inside of first outlet duct 1, so diaphragm 5 can the downstream under connecting spring 6's pulling this moment, further makes closing plate 3 seal up the inside to air inlet duct 2, and the inside gas of first outlet duct 1 can't flow back to the EGR pipeline this moment, thereby has reached and has avoided the waste gas backward flow, the effect of the safety in utilization of the improvement device.

When the inside of the air outlet pipe needs to be cleaned, the limiting rod 15 is pressed at the moment, because the limiting rod 15 is connected to the transverse groove inside the fixing groove 8 in a sliding manner, the limiting rod 15 can move downwards from the transverse groove inside the fixing groove 8 at the moment, because the supporting spring 14 is fixedly connected to the inside of the groove 13, the limiting rod 15 is fixedly connected to one side, far away from the groove 13, of the supporting spring 14, the volume of the limiting rod 15 is smaller than that of the groove 13, the limiting rod 15 can move into the groove 13 at the moment, because the groove 13 is formed in the fixing plate 12, the volume of the fixing plate 12 is matched with that of the vertical groove inside the fixing groove 8, the fixing plate 12 can be pulled out from the vertical groove inside the fixing groove 8 at the moment, because the fixing plate 12 is fixedly connected to the top of the second fixing block 9, the fixing block 8 is formed in the first fixing block 7, and the first fixing block 7 and the second fixing block 9 can be separated, and because first outlet duct 1 and second outlet duct 10 are connected through first fixed block 7 and second fixed block 9 again, so first outlet duct 1 and second outlet duct 10 can separate this moment, and the outlet duct divide into two parts from the middle this moment, is convenient for clear up its inside to reach and be convenient for clear up the inside attachment of outlet duct, improved the effect of giving vent to anger efficiency and device life.

In conclusion, this EGR outlet duct convenient to clearance inner wall attachment, waste gas admits air from the inlet end of first outlet duct 1, and gas can promote closing plate 3 upward movement this moment, when stopping admitting air, diaphragm 5 downstream under the pulling of coupling spring 6 this moment, further makes closing plate 3 seal the inside to air inlet tank 2, and the gas of first outlet duct 1 inside can't flow back to in the EGR pipeline this moment to reached and avoided the waste gas backward flow, the effect of improvement device safety in utilization.

Press gag lever post 15, gag lever post 15 moves down from the inside transverse groove of fixed slot 8 this moment, further make gag lever post 15 move to the inside of recess 13, fixed plate 12 is extracted from the inside perpendicular groove of fixed slot 8 this moment, further make first fixed block 7 and the separation of second fixed block 9, first outlet duct 1 and second outlet duct 10 can separate this moment, the outlet duct is divided into two parts from the middle, be convenient for clear up its inside, thereby reached and be convenient for clear up the inside attachment of outlet duct, efficiency and device life's effect of giving vent to anger is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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. The utility model provides a EGR outlet duct convenient to clearance inner wall attachment, includes first outlet duct (1), its characterized in that: an air inlet groove (2) is arranged inside the first air outlet pipe (1), a sealing plate (3) is hermetically connected inside the air inlet groove (2), a connecting rod (4) is fixedly connected to the top of the sealing plate (3), a transverse plate (5) is fixedly connected to the top of the connecting rod (4), a connecting spring (6) is fixedly connected to the bottom of the transverse plate (5), a first fixing block (7) is slidably connected to one end of the first air outlet pipe (1), a fixing groove (8) is formed inside the first fixing block (7), a second fixing block (9) is slidably connected to one end of the first air outlet pipe (1), a second air outlet pipe (10) is slidably connected to the inside of the second fixing block (9), a sealing gasket (11) is arranged inside the second fixing block (9), and a fixing plate (12) is fixedly connected to the top of the second fixing block (9), a groove (13) is formed in the fixing plate (12), a supporting spring (14) is fixedly connected to the inner portion of the groove (13), and a limiting rod (15) is fixedly connected to one side, far away from the groove (13), of the supporting spring (14).

2. An EGR gas outlet pipe convenient for cleaning attachments on the inner wall of the engine as claimed in claim 1, wherein: the air inlet groove (2) is arranged at the air inlet position of the first air outlet pipe (1).

3. An EGR gas outlet pipe convenient for cleaning attachments on the inner wall of the engine as claimed in claim 1, wherein: one side of the connecting spring (6) far away from the transverse plate (5) is fixedly connected inside the first air outlet pipe (1).

4. An EGR gas outlet pipe convenient for cleaning attachments on the inner wall of the engine as claimed in claim 1, wherein: the first air outlet pipe (1) and the second air outlet pipe (10) are connected through a first fixing block (7) and a second fixing block (9).

5. An EGR gas outlet pipe convenient for cleaning attachments on the inner wall of the engine as claimed in claim 1, wherein: the inside of first fixed block (7) is provided with and seals ring (11) with second fixed block (9) equidimension, seal ring (11) are semi-circular, and the internal diameter of seal ring (11) and the external diameter looks adaptation of first outlet duct (1) and second outlet duct (10) junction.

6. The EGR outlet pipe convenient for cleaning attachments on the inner wall of claim 1, which is characterized in that: the volume of the fixing plate (12) is matched with the volume of a vertical groove in the fixing groove (8).

7. An EGR gas outlet pipe convenient for cleaning attachments on the inner wall of the engine as claimed in claim 1, wherein: the volume of gag lever post (15) is less than the volume of recess (13), the volume of gag lever post (15) and the volume looks adaptation of the inside cross slot of fixed slot (8), just gag lever post (15) sliding connection is in the inside cross slot department of fixed slot (8).