CN216043974U

CN216043974U - Novel internal combustion engine exhaust pipe

Info

Publication number: CN216043974U
Application number: CN202122168743.8U
Authority: CN
Inventors: 袁军; 薛丰
Original assignee: Wuxi Yangming Internal Combustion Engine Parts Co ltd
Current assignee: Wuxi Yangming Internal Combustion Engine Parts Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-15
Anticipated expiration: 2031-09-08

Abstract

The utility model relates to a novel internal combustion engine exhaust pipe, which comprises two end pipes and a middle pipe, wherein the middle pipe is connected between the two end pipes, connecting components are respectively arranged between the two ends of the middle pipe and the two end pipes, each connecting component comprises a connecting pipe and a connecting groove, the connecting pipes are arranged on the end surfaces, close to the middle pipe, of the end pipes, the connecting grooves are arranged on the end surfaces of the middle pipes, the connecting grooves are matched with the connecting pipes, external threads are arranged on the outer side walls of the connecting pipes, internal threads are arranged on the side walls, corresponding to the outer side walls of the connecting pipes, of the connecting grooves, the connecting pipes are inserted into the connecting grooves and are in threaded connection with the connecting grooves, and the end surfaces, close to the middle pipe, of the end pipes are attached to the end surfaces of the middle pipe; and a sealing piece is arranged in the connecting groove and is used for forming a sealing structure between the connecting pipe and the connecting groove. The utility model has the advantages of facilitating the dredging and cleaning of the exhaust pipe by workers and improving the dredging and cleaning effect of the exhaust pipe.

Description

Novel internal combustion engine exhaust pipe

Technical Field

The utility model relates to the technical field of internal combustion engine accessories, in particular to a novel internal combustion engine exhaust pipe.

Background

An internal combustion engine is a power machine, which is a heat engine that directly converts heat energy released by burning fuel inside the machine into power. The pipelines required by the internal combustion engine are mainly two types, namely an internal combustion engine air inlet pipe and an internal combustion engine exhaust pipe. The internal combustion engine air inlet pipe is a pipeline for introducing gas required by combustion of the internal combustion engine into the internal part of the internal combustion engine; the engine exhaust pipe is a pipe for exhausting high-temperature gas burned by the engine out of the machine.

Carry the greasy dirt among the high temperature gas in the internal-combustion engine exhaust pipe, the greasy dirt can be attached to the inner wall of blast pipe after using for a long time, can block up the blast pipe when serious, influence normal exhaust, the staff needs to dismantle the mediation clearance with the blast pipe this moment, perhaps more renew the blast pipe, because the return bend of internal-combustion engine exhaust pipe formula as an organic whole usually among the prior art, consequently, the dredging tool is difficult for deepening the inside clearance of blast pipe, thereby it is very troublesome to lead to the mediation clearance operation, and it is unsatisfactory to dredge the clearance effect.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects in the prior art, the utility model provides a novel internal combustion engine exhaust pipe, which aims to solve the problems of troublesome dredging operation and poor dredging and cleaning effects of the internal combustion engine exhaust pipe in the prior art.

(II) technical scheme

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a novel internal combustion engine exhaust pipe comprises two end pipes and a middle pipe, wherein the middle pipe is connected between the two end pipes, connecting components are arranged between two ends of the middle pipe and the two end pipes respectively, each connecting component comprises a connecting pipe and a connecting groove, the connecting pipe is arranged on the end surface, close to the middle pipe, of each end pipe, the connecting groove is arranged on the end surface of the middle pipe, the connecting groove is matched with the connecting pipe, the outer side wall of the connecting pipe is provided with external threads, the connecting groove is provided with internal threads on the side wall corresponding to the outer side wall of the connecting pipe, the connecting pipe is inserted into the connecting groove and is in threaded connection with the connecting groove, and the end surface, close to the middle pipe, of each end pipe is attached to the end surface of the middle pipe; and a sealing element is arranged in the connecting groove and is used for forming a sealing structure between the connecting pipe and the connecting groove.

Further, the sealing member is the sealing washer, the sealing washer sets up the interior diapire at the spread groove, the sealing washer is compressed tightly jointly by the interior diapire of connecting pipe and spread groove.

Furthermore, positioning assemblies are arranged between two ends of the middle pipe and the two end pipes respectively, and each positioning assembly comprises a mounting groove, a moving groove, a positioning groove, a pressure spring, a positioning rod and a moving rod; the mounting groove is arranged on the end surface of the middle pipe, the mounting groove is positioned between the connecting groove and the outer side wall of the middle pipe, the pressure spring is arranged in the mounting groove, one end of the pressure spring is fixedly connected with the inner bottom surface of the mounting groove, the other end of the pressure spring is fixedly connected with the end surface of the positioning rod, the positioning groove is arranged on the end surface of the end pipe close to the central pipe, the positioning groove is arranged corresponding to the mounting groove, one end of the positioning rod connected with the pressure spring is positioned in the mounting groove, one end of the positioning rod far away from the pressure spring is positioned in the positioning groove and attached to the inner wall of the positioning groove, the moving groove is arranged on the outer side wall of the end part of the central pipe, the mounting groove is communicated with the outside, the moving rod is connected with the positioning rod and is perpendicular to the positioning rod, one end of the moving rod far away from the positioning rod extends out of the moving groove, the pressure spring is in a compression state, when the spring continues to be compressed, the locating rod can be completely moved into the mounting groove.

Furthermore, the pressure spring contacts with the inner side wall of the mounting groove, and the outer side wall of the positioning rod is attached to the inner side wall of the mounting groove.

Furthermore, the edge of the end face, far away from one end of the pressure spring, of the positioning rod is provided with an arc chamfer.

Furthermore, the outer side wall of one end of each end pipe close to the middle pipe is provided with two poking plates, and the two poking plates are arranged on each end pipe and are perpendicular to the end faces of the end pipes close to the middle pipe.

(III) advantageous technical effects

In summary, the utility model has the following beneficial technical effects:

1. in the utility model, the exhaust pipe comprises two end pipes and a middle pipe, and the end pipes and the middle pipe are detachably connected through the connecting assembly, so that when workers need to dredge and clean the exhaust pipe, the end pipes and the middle pipe can be detached, the whole exhaust pipe is detached into three relatively short pipelines, the operation difficulty of the workers in dredging the exhaust pipe is greatly reduced, the effect of dredging the exhaust pipe can be improved, and after the dredging and cleaning are finished, the end pipes and the middle pipe can be reconnected and fixed by the users, so that the operation is convenient;

2. because the positioning assembly is arranged, when the end pipe is not connected with the middle pipe, the pressure spring can extrude the positioning rod to enable one end of the positioning rod, which is far away from the pressure spring, to be positioned outside the mounting groove, when the end pipe is required to be connected with the middle pipe, a worker firstly drives the positioning rod to extrude the pressure spring through the movable rod until the positioning rod is completely moved into the mounting groove, then keeps the position of the positioning rod unchanged, rotatably inserts the connecting pipe into the connecting groove, when the end pipe is connected with the middle pipe, the end surface of the end pipe is attached to the end surface of the middle pipe, the positioning groove is aligned with the mounting groove, at the moment, the movable rod is loosened, under the action of the pressure spring, the positioning rod is extruded into the positioning groove and attached to the inner wall of the positioning groove to be abutted against, and finally kept stable, and because the positioning rod cannot rotate relative to the middle pipe at the moment, the end pipe cannot be detached from the middle pipe, and the effect of improving the stability of connection between the end pipe and the middle pipe is achieved, when the end pipe and the middle pipe need to be detached by a worker, the moving rod only needs to be pushed in the direction away from the end pipe until the positioning rod is completely moved into the mounting groove, the position of the moving rod is kept unchanged, then the end pipe and the middle pipe can be rotationally separated, and the operation is simple and convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of an exhaust pipe of a novel internal combustion engine in an embodiment;

FIG. 2 is a sectional view of an exhaust pipe of a novel internal combustion engine in an embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an exploded view of the structure of the connection position of the end pipe and the middle pipe in the embodiment.

Description of reference numerals:

in the figure, 1, an end pipe; 2. an intermediate pipe; 3. a connecting pipe; 4. connecting grooves; 5. a seal ring; 6. mounting grooves; 7. a moving groove; 8. a pressure spring; 9. positioning a rod; 10. a travel bar; 11. a poking plate; 12. and (6) positioning a groove.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example (b):

referring to fig. 1-4, the novel exhaust pipe for an internal combustion engine disclosed by the utility model comprises two end pipes 1 and a middle pipe 2, wherein the middle pipe 2 is connected between the two end pipes 1, connecting components are respectively arranged between two ends of the middle pipe 2 and the two end pipes 1, and the connecting components are used for realizing detachable connection of the middle pipe 2 and the end pipes 1.

The coupling assembly comprises a coupling tube 3 and a coupling slot 4. The connecting pipe 3 is arranged on the end surface of the end pipe 1 close to the middle pipe 2, the connecting groove 4 is arranged on the end surface of the middle pipe 2, and the connecting groove 4 is matched with the connecting pipe 3. The outer side wall of the connecting pipe 3 is provided with an external thread (not shown in the figure), the connecting groove 4 is provided with an internal thread (not shown in the figure) on the side wall corresponding to the outer side wall of the connecting pipe 3, the connecting pipe 3 is inserted into the connecting groove 4 and is in threaded connection with the connecting groove 4, and the end surface of the end pipe 1 close to the middle pipe 2 is attached to the end surface of the middle pipe 2.

A sealing member is arranged in the connecting groove 4, and the sealing member is used for forming a sealing structure between the connecting pipe 3 and the connecting groove 4. The sealing member is sealing washer 5, and sealing washer 5 sets up at the interior diapire of spread groove 4, and when end pipe 1 and well casing 2 are connected completely, sealing washer 5 is compressed tightly jointly by the interior diapire of connecting pipe 3 with spread groove 4 to can prevent that the waste gas in the blast pipe from leaking from the junction of end pipe 1 and well casing 2, play the effect that improves the leakproofness and the stability of whole connecting pipe 3.

And positioning components are arranged between the two ends of the middle pipe 2 and the two end pipes 1 respectively. The positioning assembly comprises a mounting groove 6, a moving groove 7, a positioning groove 12, a pressure spring 8, a positioning rod 9 and a moving rod 10. The mounting groove 6 is arranged on the end surface of the middle pipe 2, and the mounting groove 6 is positioned between the connecting groove 4 and the outer side wall of the middle pipe 2. The pressure spring 8 is arranged in the mounting groove 6, one end of the pressure spring 8 is fixedly connected with the inner bottom surface of the mounting groove 6, and the other end of the pressure spring is fixedly connected with the end surface of the positioning rod 9. The terminal surface at end pipe 1 near the center tube is seted up to constant head tank 12, and constant head tank 12 corresponds the setting with mounting groove 6, and the one end that positioning lever 9 and pressure spring 8 are connected is located mounting groove 6, and the one end that positioning lever 9 kept away from pressure spring 8 is located constant head tank 12 and laminates with constant head tank 12 inner wall. The moving groove 7 is formed in the outer side wall of the end portion of the center tube, and the mounting groove 6 is communicated with the outside through the moving groove 7. The moving rod 10 is connected with the positioning rod 9 and is perpendicular to the positioning rod 9, and one end of the moving rod 10, which is far away from the positioning rod 9, extends out of the moving groove 7. The compression spring 8 is in a compressed state, and when the spring continues to be compressed, the positioning rod 9 can completely move into the mounting groove 6.

Through the above setting, because the blast pipe includes two end pipes 1 and a intervalve 2, can dismantle through coupling assembling between end pipe 1 and the intervalve 2 and be connected, consequently when the staff need dredge the clearance to the blast pipe, can pull apart end pipe 1 and intervalve 2, thereby become three relatively short pipeline with whole blast pipe split, greatly reduced the operating degree of difficulty of staff mediation blast pipe, also can improve the effect of mediation blast pipe, treat after the mediation clearance, the user again with end pipe 1 with intervalve 2 reconnect fixed can, convenient operation.

Due to the arrangement of the positioning assembly, when the end pipe 1 is not connected with the middle pipe 2, the pressure spring 8 can extrude the positioning rod 9 to enable one end, far away from the pressure spring 8, of the positioning rod 9 to be located outside the installation groove 6, when the end pipe 1 is required to be connected with the middle pipe 2, a worker firstly drives the positioning rod 9 to extrude the pressure spring 8 through the movable rod 10 until the positioning rod 9 is completely moved into the installation groove 6, then keeps the position of the positioning rod 9 unchanged, rotatably inserts the connecting pipe 3 into the connecting groove 4, after the end pipe 1 is connected with the middle pipe 2, the end face of the end pipe 1 is attached to the end face of the middle pipe 2, the positioning groove 12 is also aligned with the installation groove 6, at the moment, the movable rod 10 is loosened, and under the action of the pressure spring 8, the positioning rod 9 is extruded into the positioning groove 12 and attached to abut against the inner wall of the positioning groove 12, and finally keeps stable; due to the existence of the positioning rod 9, the end pipe 1 and the middle pipe 2 cannot rotate relatively at the moment, so that the end pipe 1 and the middle pipe 2 cannot be detached, and the effect of improving the stability of connection of the end pipe 1 and the middle pipe 2 is achieved; when the staff need with end pipe 1 and middle pipe 2 components, only need to keep away from 1 direction promotion movable rod 10 of end pipe, in the locating lever 9 immigration mounting groove 6 completely, keep the position of movable rod 10 unchangeable, then alright with end pipe 1 and middle pipe 2 rotation separation, easy operation is convenient.

In addition, pressure spring 8 and the inside wall contact of mounting groove 6, the laminating of the outside wall of locating lever 9 and the inside wall of mounting groove 6, consequently mounting groove 6 can carry on spacingly to pressure spring 8 and locating lever 9 to prevent that pressure spring 8 and locating lever 9 from taking place crooked at the removal in-process, improve the stability of pressure spring 8 and locating lever 9.

In order to facilitate the insertion of the positioning rod 9 into the positioning groove 12, an arc chamfer is arranged on the edge of the end face of the positioning rod 9 far away from one end of the pressure spring 8. In order to facilitate the rotation of the end pipes 1 by workers, the outer side wall of one end of each end pipe 1, which is close to the middle pipe 2, is provided with two poking plates 11, each poking plate 11 is a semicircular plate, and the poking plates 11 are perpendicular to the end faces, close to the middle pipe 2, of the end pipes 1.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A novel exhaust pipe of an internal combustion engine is characterized in that: comprises two end pipes (1) and a middle pipe (2), wherein the middle pipe (2) is connected between the two end pipes (1), connecting components are respectively arranged between the two ends of the middle pipe (2) and the two end pipes (1), the connecting assembly comprises a connecting pipe (3) and a connecting groove (4), the connecting pipe (3) is arranged on the end surface of the end pipe (1) close to the middle pipe (2), the connecting groove (4) is arranged on the end surface of the middle pipe (2), the connecting groove (4) is matched with the connecting pipe (3), the outer side wall of the connecting pipe (3) is provided with external threads, the side wall of the connecting groove (4) corresponding to the outer side wall of the connecting pipe (3) is provided with internal threads, the connecting pipe (3) is inserted into the connecting groove (4) and is in threaded connection with the connecting groove (4), the end surface of the end pipe (1) close to the middle pipe (2) is attached to the end surface of the middle pipe (2); and a sealing element is arranged in the connecting groove (4), and the sealing element is used for forming a sealing structure between the connecting pipe (3) and the connecting groove (4).

2. The exhaust pipe of a novel internal combustion engine according to claim 1, characterized in that: the sealing member is sealing washer (5), sealing washer (5) set up the interior diapire at spread groove (4), sealing washer (5) are compressed tightly jointly by the interior diapire of connecting pipe (3) and spread groove (4).

3. The exhaust pipe of a novel internal combustion engine according to claim 2, characterized in that: positioning assemblies are arranged between two ends of the middle pipe (2) and the two end pipes (1) respectively, and each positioning assembly comprises a mounting groove (6), a moving groove (7), a positioning groove (12), a pressure spring (8), a positioning rod (9) and a moving rod (10); the end face of the middle pipe (2) is arranged in the mounting groove (6), the mounting groove (6) is located between the connecting groove (4) and the outer side wall of the middle pipe (2), the pressure spring (8) is arranged in the mounting groove (6), one end of the pressure spring (8) is fixedly connected with the inner bottom face of the mounting groove (6), the other end of the pressure spring is fixedly connected with the end face of the positioning rod (9), the positioning groove (12) is arranged on the end face, close to the central pipe, of the end pipe (1), the positioning groove (12) is correspondingly arranged with the mounting groove (6), one end, connected with the pressure spring (8), of the positioning rod (9) is located in the mounting groove (6), one end, far away from the pressure spring (8), of the positioning rod (9) is located in the positioning groove (12) and is attached to the inner wall of the positioning groove (12), the moving groove (7) is arranged on the outer side wall of the end part of the central pipe, the moving groove (7) communicates the mounting groove (6) with the outside, the movable rod (10) is connected with the positioning rod (9) and is perpendicular to the positioning rod (9), one end, far away from the positioning rod (9), of the movable rod (10) extends out of the movable groove (7), the pressure spring (8) is in a compression state, and when the pressure spring continues to be compressed, the positioning rod (9) can be completely moved into the mounting groove (6).

4. A novel exhaust pipe for an internal combustion engine according to claim 3, wherein: the pressure spring (8) contacts with the inner side wall of the mounting groove (6), and the outer side wall of the positioning rod (9) is attached to the inner side wall of the mounting groove (6).

5. The exhaust pipe of a novel internal combustion engine according to claim 4, characterized in that: and an arc chamfer is arranged at the edge of the end face of one end of the positioning rod (9) far away from the pressure spring (8).

6. The exhaust pipe of a novel internal combustion engine according to claim 1, characterized in that: the outer side wall of one end, close to the middle pipe (2), of each end pipe (1) is provided with two poking plates (11), the number of the poking plates (11) is two, and the poking plates (11) and the end faces, close to the middle pipe (2), of the end pipes (1) are perpendicular to each other.