CN214366340U

CN214366340U - Exhaust pipe connecting device and engine

Info

Publication number: CN214366340U
Application number: CN202022898292.9U
Authority: CN
Inventors: 李德胜
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-10-08
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a blast pipe connecting device and engine, wherein blast pipe connecting device include that retaining member and cover establish the sleeve pipe in the pole portion outside of retaining member, and the sheathed tube lateral wall is equipped with the louvre of intercommunication pole portion, the pole portion and the sleeve pipe clearance fit of retaining member, and the one end and the blast pipe of retaining member are connected, keep away from on the other end and the sleeve pipe blast pipe one end and are connected. In the utility model provides an among the blast pipe connecting device, because the pole portion and the sleeve pipe clearance fit of retaining member, and be equipped with the louvre on the sleeve pipe for the heat of sleeve pipe, the clearance of sleeve pipe and retaining member and the pole position of check lock lever is effluvium as early as possible, reduces the temperature of retaining member position, improves connection stability, and then improves the safety in utilization of engine.

Description

Exhaust pipe connecting device and engine

Technical Field

The utility model relates to an blast pipe installation technical field, in particular to blast pipe connecting device. The utility model discloses still relate to an engine including above-mentioned blast pipe connecting device.

Background

The exhaust pipe is mounted on the engine body through an exhaust pipe connecting device. Specifically, the exhaust pipe is mounted on the exhaust pipe and the engine body through a locking member whose outer periphery is fitted with a sleeve.

Because sheathed tube side surface is airtight structure, lead to installing blast pipe connecting device's blast pipe fixed orifices, the intraductal gas of sleeve does not flow, lasting high temperature will lead to the gas in the airtight space to have higher temperature, make a large amount of heat transfer to retaining member head, it is heated to increase the retaining member head, and if sleeve and blast pipe bolt direct contact, heat transfer is more rapid for the transmission when contactless this moment, lead to the retaining member head because of the decline of the too high material performance of temperature and then lead to retaining member hookup location not hard up, cause blast pipe gasket gas leakage trouble, and then lead to the engine safety in utilization to reduce.

Therefore, how to improve the safety of the engine is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an exhaust pipe connecting device to improve the safety in utilization of engine. Another object of the present invention is to provide an engine including the above exhaust pipe connecting device.

In order to achieve the purpose, the utility model provides a blast pipe connecting device, establish including blast pipe, retaining member and cover the sleeve pipe in the pole portion outside of retaining member, the sheathed tube lateral wall is equipped with the intercommunication the louvre of pole portion, the pole portion of retaining member with sleeve pipe clearance fit, the one end of retaining member with the blast pipe is connected, the other end with keep away from on the sleeve pipe blast pipe one end is connected.

Preferably, the number of the heat dissipation holes is at least two.

Preferably, the heat dissipation hole is arranged in a plurality of circles along the axis direction of the rod part.

Preferably, each ring is provided with at least two heat dissipation holes.

Preferably, the rod portion is screwed with the mounting portion of the exhaust pipe.

Preferably, the clamping device further comprises a rod clamping piece used for clamping the outside of the rod, and the sleeve is provided with an installation groove used for clamping the rod clamping piece.

Preferably, the clamping part of the rod part comprises two clamping parts which are used for clamping the rod part and handle parts which are connected with the clamping parts and used for being operated by a user, and the two clamping parts are respectively arranged on two opposite sides of the handle parts.

Preferably, the rod clamping piece is a clamping spring.

Preferably, the rod clamping piece is of an integrally formed structure.

An engine comprising an engine body, an exhaust pipe connection device and an exhaust pipe mounted on the engine body through the exhaust pipe connection device, the exhaust pipe connection device being any one of the above exhaust pipe connection devices.

In the technical scheme, the utility model provides a blast pipe connecting device includes that retaining member and cover establish the sleeve pipe in the pole portion outside of retaining member, and the sheathed tube lateral wall is equipped with the louvre of intercommunication pole portion, the pole portion and the sleeve pipe clearance fit of retaining member, and the one end and the blast pipe of retaining member are connected, and the other end is connected with keeping away from blast pipe one end on the sleeve pipe.

According to the exhaust pipe connecting device, the rod part of the locking piece is in clearance fit with the sleeve, and the sleeve is provided with the heat dissipation holes, so that heat of the gaps among the sleeve, the sleeve and the locking piece and the rod part of the locking rod is dissipated as soon as possible, the temperature of the position where the locking piece is located is reduced, the connection stability is improved, and the use safety of an engine is improved.

Drawings

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

Fig. 1 is a schematic structural view of an exhaust pipe connection device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a bushing according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a rod clamping member according to an embodiment of the present invention.

Wherein in FIGS. 1-3:

1. a sleeve; 1-1-, a heat sink; 1-2, mounting grooves;

2. a rod portion clamping member; 2-1, a clamping part; 2-2, a handle part;

3. a locking member;

4. and (4) exhausting the gas.

Detailed Description

The core of the utility model is to provide an exhaust pipe connecting device to improve the safety in utilization of engine. The other core of the utility model is to provide an engine including above-mentioned blast pipe connecting device.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Please refer to fig. 1 to fig. 3.

In a specific embodiment, the utility model discloses the blast pipe connecting device that the embodiment provided includes that retaining member 3 and cover establish the sleeve pipe 1 in the pole portion outside of retaining member 3. The side wall of the sleeve 1 is provided with heat dissipation holes 1-1 communicated with the rod part, specifically, the central lines of the heat dissipation holes 1-1 can be perpendicular to the axis of the rod part, and for the convenience of processing the heat dissipation holes 1-1 and reducing stress concentration, preferably, the heat dissipation holes 1-1 are circular holes. Specifically, the sleeve 1 may be an integrally formed structure, and in order to improve the connection strength, the sleeve 1 may be a metal member.

Specifically, there may be one heat dissipation hole 1-1, and in order to improve the heat dissipation effect and ensure the supporting strength, preferably, there are at least two heat dissipation holes 1-1. Specifically, the heat dissipation holes 1-1 may be sequentially arranged along the axial direction of the casing 1.

As shown in FIG. 2, the heat dissipation holes 1-1 are arranged in a plurality of circles along the axial direction of the rod part, and preferably, at least two heat dissipation holes 1-1 are arranged in each circle.

The pole of retaining member 3 and sleeve 1 clearance fit, form the heat dissipation clearance between pole and the sleeve 1 promptly, the pole heat of retaining member 3. One end of the locking piece 3 is connected with the exhaust pipe 4, and the other end is connected with one end of the sleeve 1, which is far away from the exhaust pipe 4. Specifically, the rod portion of the locking member 3 is connected to the exhaust pipe 4, and may be fixed by bonding, welding, or screwing, and specifically, the head portion of the rod portion is preferably screwed to the engine body. Keep away from the spacing arch that the one end of blast pipe 4 can be with 1 tip butt of sleeve pipe at pole portion fixed connection on retaining member 3, and is specific, preferred, spacing arch and pole portion integrated into one piece.

As can be seen from the above description, in the exhaust pipe connecting device provided in the embodiment of the present application, since the rod portion of the locking member 3 is in clearance fit with the sleeve 1, and the heat dissipation hole 1-1 is formed in the sleeve 1, the gas in the original closed space flows, so that the heat in the clearance between the sleeve 1, the sleeve 1 and the locking member 3 and the position of the rod portion of the locking rod is dissipated as soon as possible, the continuous heating is prevented, the temperature of the position of the locking member 3 is reduced, the connection stability is improved, and the use safety of the engine is improved.

On the basis of each scheme, the exhaust pipe connecting device further comprises a rod part clamping piece 2 used for clamping the outside of the rod part, and the sleeve 1 is provided with a mounting groove 1-2 used for clamping the rod part clamping piece 2. Specifically, the mounting groove 1-2 can be a U-shaped groove, and the thickness of the U-shaped groove is slightly larger than that of the rod clamping piece 2. Specifically, the rod part clamping piece 2 can be clamped with a spring.

In one embodiment, the rod part gripping member 2 comprises a gripping part 2-1 for gripping the rod part and a handle part 2-2 connected to the gripping part 2-1 and intended to be operated by a user. Specifically, the two clamping parts 2-1 are respectively arranged on two opposite sides of the handle part 2-2.

When equipment blast pipe connecting device, with sleeve pipe 1 cover to the pole portion of retaining member 3, the jump ring passes through mounting groove 1-2 position and inserts, utilizes the pole portion of jump ring self elasticity chucking retaining member 3, makes sleeve pipe 1 and retaining member 3 form an arrangement part, can guarantee again simultaneously retaining member 3 not with 1 lateral wall direct contact of sleeve pipe, increase air bed thickness, reduce heat-conduction.

In order to improve the assembling efficiency of the exhaust pipe connecting device, it is preferable that the rod clamping member 2 is of an integrally formed structure.

Before the exhaust pipe 4 is installed, the locking member 3 and the sleeve 1 can be pre-assembled into a whole, so that the assembling efficiency is improved during the whole assembling process.

An engine provided by the present application includes an engine main body, an exhaust pipe connection device, and an exhaust pipe 4 mounted on the engine main body through the exhaust pipe connection device, wherein the exhaust pipe connection device is any one of the exhaust pipe connection devices described above. The foregoing describes a specific structure of the exhaust pipe connection device, and the present application includes the exhaust pipe connection device described above, and also has the technical effects described above.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an exhaust pipe connecting device, its characterized in that establishes including retaining member (3) and cover sleeve pipe (1) in the pole portion outside of retaining member (3), the lateral wall of sleeve pipe (1) is equipped with the intercommunication louvre (1-1) of pole portion, the pole portion of retaining member (3) with sleeve pipe (1) clearance fit, the one end and the blast pipe (4) of retaining member (3) are connected, the other end with keep away from on sleeve pipe (1) blast pipe (4) one end is connected.

2. The exhaust pipe connecting device according to claim 1, wherein the number of the heat radiating holes (1-1) is at least two.

3. The exhaust pipe connecting device according to claim 2, wherein the heat radiating hole (1-1) is provided in a plurality of turns in the axial direction of the rod portion.

4. An exhaust pipe connecting device according to claim 3, wherein at least two heat dissipating holes (1-1) are provided for each turn.

5. The exhaust pipe connecting device according to claim 1, wherein the rod portion is screwed with a mounting portion of the exhaust pipe (4).

6. The exhaust pipe connecting device according to any one of claims 1 to 5, further comprising a rod part clamping member (2) for clamping the outside of the rod part, wherein the sleeve (1) is provided with an installation groove (1-2) for clamping the rod part clamping member (2).

7. Exhaust pipe connecting device according to claim 6, characterized in that the rod part clamping member (2) comprises a clamping part (2-1) for clamping the rod part and a handle part (2-2) connected to the clamping part (2-1) and adapted to be operated by a user, the clamping parts (2-1) being two and arranged on opposite sides of the handle part (2-2).

8. Exhaust pipe connection device according to claim 6, characterized in that the rod part retainer (2) is a circlip.

9. An exhaust pipe connection device according to claim 6, characterized in that the rod portion retainer (2) is of an integrally formed structure.

10. An engine comprising an engine main body, an exhaust pipe connection device, and an exhaust pipe (4) mounted on the engine main body through the exhaust pipe connection device, characterized in that the exhaust pipe connection device is the exhaust pipe connection device according to any one of claims 1 to 9.