CN218454777U

CN218454777U - Exhaust pipe connecting structure of tricycle silencer

Info

Publication number: CN218454777U
Application number: CN202221503065.4U
Authority: CN
Inventors: 张利强; 廖强
Original assignee: Chongqing Shenlun Machinery Manufacturing Co ltd
Current assignee: Chongqing Shenlun Machinery Manufacturing Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2023-02-07
Anticipated expiration: 2032-06-15

Abstract

The utility model discloses a tricycle silencer exhaust pipe connecting structure, which comprises a first exhaust pipe and a second exhaust pipe, wherein the first exhaust pipe is connected with the second exhaust pipe through a sealing component; the sealing component comprises a connecting sleeve and a spherical graphite sealing gasket; the arrangement of the connecting sleeve ensures that the spherical graphite sealing gasket is not directly contacted with the exhaust pipe, so that the spherical graphite sealing gasket can be directly disassembled by disassembling the connecting sleeve during disassembly, and the disassembly and the replacement are convenient; the connecting sleeves are connected through threads, so that the sealing performance of the connecting sleeves is guaranteed, the connecting sleeves are convenient to disassemble, and the subsequent maintenance is greatly facilitated; and the second exhaust pipe is provided with an insertion supporting gap, so that after the first exhaust pipe is inserted into the gap and fastened through the bolt, the bolt is no longer used as the only supporting part, the stability of the first exhaust pipe is ensured, and the service life of the first exhaust pipe is prolonged.

Description

Exhaust pipe connecting structure of tricycle silencer

Technical Field

The utility model relates to a tricycle technical field, concretely relates to tricycle silencer blast pipe connection structure.

Background

The silencer is an essential part for exhausting gas of an internal combustion engine, and is usually mounted at the head of a tricycle in a power mode, while the silencer is mounted at the tail of a tricycle, so that the whole distance is long, and the requirement on the connection sealing performance of each section is high for the convenience of mounting the exhaust pipe which is usually respectively in a three-section mode or a two-end mode.

The existing connection between the exhaust pipes is that a spherical or other flat graphite pad is arranged at the connection position to be used as a sealing element, and then the spherical or other flat graphite pad is connected and compressed through bolts; the connection mode is quick and low in cost, but the problem of sealing failure often occurs in the part in the actual use process; one reason for the problems is that all the supporting force in the conventional connection method is borne by the bolts, so that the bolts are easily broken due to frequent vibration of the vehicle after being used for a period of time, and the sealing time is further prolonged.

Another is that once a problem occurs in the muffler or a problem occurs in the engine, the exhaust pipe is first to be disassembled, the graphite pad is directly contacted with the exhaust pipe, and the graphite pad is often compressed when being connected in order to achieve a sealing effect, which causes a part of the graphite pad to remain on the exhaust pipe connected with the power when the exhaust pipe is disassembled, so that the replacement of the graphite pad is inconvenient, the graphite pad remaining on the exhaust pipe needs to be peeled off or scraped, and the damage to the pipe body is inevitably caused in the peeling or scraping process, thereby causing sealing failure, and causing great labor intensity in the replacement.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a tricycle silencer blast pipe connection structure to improve the sealing performance who connects between the multistage blast pipe, reduce the intensity of labour to the change of graphite pad when follow-up maintenance, promote the holistic management of blast pipe.

In order to achieve the above object, the present invention provides a muffler exhaust pipe connection structure for a tricycle, including a first exhaust pipe connected to a power source and a second exhaust pipe connected to a muffler, wherein the first exhaust pipe is connected to the second exhaust pipe in a sealing manner, a sealing assembly is screwed to an end of the first exhaust pipe, an arc contact portion is disposed at a sealing connection position of the second exhaust pipe and the first exhaust pipe, a protruding support portion is disposed at a bottom of the arc contact portion, and an insertion support gap is formed between the protruding support portion and the arc contact portion, so that the first exhaust pipe is inserted into the insertion support gap of the second exhaust pipe; the sealing component comprises a connecting sleeve and a spherical graphite sealing gasket, the connecting sleeve is in threaded connection with the first exhaust pipe, the spherical graphite sealing gasket is sleeved on the connecting sleeve, the arc-shaped contact part is in contact with and tightly presses the spherical graphite sealing gasket when the first exhaust pipe is in sealing connection with the second exhaust pipe, and the first exhaust pipe is in bolt connection with the second exhaust pipe through a silencer.

According to the exhaust pipe connecting structure, the spherical graphite sealing gasket is connected to the first exhaust pipe through the connecting sleeve, and the connecting sleeve is arranged to ensure that the spherical graphite sealing gasket is not directly contacted with the exhaust pipe, so that the spherical graphite sealing gasket can be directly completed by disassembling the connecting sleeve during disassembly, the disassembly and the replacement are convenient, and no residue is left on the pipe body; the connecting sleeves are connected through threads, so that the sealing performance of the connecting sleeves is guaranteed, the connecting sleeves are convenient to disassemble, and the subsequent maintenance is greatly facilitated; and the second exhaust pipe is provided with an inserting support gap, so that after the first exhaust pipe is inserted into the gap and fastened through a bolt, the bolt is not used as a unique support part any more, but is used as a support end to support through a protruding support part, the stability of the exhaust pipe is ensured, and the service life of the exhaust pipe is prolonged.

Furthermore, the first exhaust pipe and the power connecting part are double-layer heat-insulating pipes, and a catalyst device is connected to the tail end close to the first exhaust pipe; the double-deck thermal-insulated pipe set up the heat-proof quality who has improved this part for this section pipeline can not be because a large amount of heat and phenomenon such as reddening, and catalyst device's setting has promoted the treatment quality of waste gas.

Furthermore, a first gas sensor is connected to the first exhaust pipe close to the double-layer heat insulation pipe, and a second gas sensor is connected to the second exhaust pipe close to the sealing connection part; through the setting of second gas sensing, the treatment effect of catalyst device is monitored to the gaseous sensing device of accessible second on the one hand, but on the other hand if the sealed connection part if the leakage appears the detection of the very first time through the second sensor and feeds back for the problem can in time be discover and effectively solve.

Furthermore, the silencer is connected with a fixed connecting part and comprises an impedance composite silencer, and the position of the silencer on the tricycle body is limited, so that the overall performance of the silencer is improved by selecting one impedance composite silencer in order to improve the silencing capacity of the silencer.

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 embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is an assembly view of a muffler exhaust pipe connection structure according to an embodiment of the present invention;

FIG. 2 is a block diagram of the sealed joint of FIG. 1;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a schematic structural diagram of a muffler according to an embodiment of the present invention.

In the drawing, a first exhaust pipe 1, a double-layer heat insulation pipe 11, a second exhaust pipe 2, a sealing connection 3, a connecting sleeve 31, a spherical graphite gasket 32, an arc contact part 33, a protruding support part 34, an insertion support gap 35, a muffler 4, an outer shell 41, a first partition plate 42, a second partition plate 43, a third partition plate 44, a first chamber 45, a second chamber 46, a third chamber 47, a fourth chamber 48, an air inlet pipe 49, an inner insertion pipe 410, an air outlet pipe 411, a conduction pipe 412, an interference baffle 413, an end cover 414, a catalyst 5, a first sensor 6 and a second sensor 7.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1-2, a specific embodiment of the present invention is: a tricycle muffler exhaust pipe connecting structure comprises a first exhaust pipe 1 connected with power and a second exhaust pipe 2 connected with a muffler 4, wherein the first exhaust pipe 1 is in sealing connection 3 with the second exhaust pipe 2, the power connecting part of the first exhaust pipe 1 is a double-layer heat insulation pipe 11, the tail end close to the first exhaust pipe 1 is connected with a catalyst 5 device, the first exhaust pipe 1 close to the double-layer heat insulation pipe 11 is connected with a first gas sensor, and the second exhaust pipe 2 close to the sealing connection part 3 is connected with a second gas sensor; the tail end of the first exhaust pipe is in threaded connection with a sealing assembly, an arc-shaped contact part 33 is arranged at the position where the second exhaust pipe 2 is in sealing connection with the first exhaust pipe 1 and the 3, a protruding support part 34 is arranged at the bottom of the arc-shaped contact part 33, and an insertion support gap 35 is formed between the protruding support part 34 and the arc-shaped contact part 33, so that the first exhaust pipe 1 is inserted into the insertion support gap 35 of the second exhaust pipe 2; the sealing component comprises a connecting sleeve 31 and a spherical graphite sealing gasket 32, the connecting sleeve 31 is in threaded connection with the first exhaust pipe 1, the spherical graphite sealing gasket 32 is sleeved on the connecting sleeve 31, when the first exhaust pipe 1 is in sealing connection with the second exhaust pipe 2 and is in 3, the arc-shaped contact part 33 is in contact with and is pressed by the spherical graphite sealing gasket 32, the first exhaust pipe 1 and the second exhaust pipe 2 are in bolted connection through a silencer 4, the silencer 4 is connected with a fixed connecting part, and the fixed connecting part is connected to a frame of a tricycle through the fixed connecting part.

An example of the above muffler 4 is: the device comprises an outer shell 41, wherein two ends of the outer shell 41 are respectively and fixedly connected with end covers 414, and a closed inner cavity is formed by the end covers 414 at the two ends and the outer shell 41; a first partition plate 42, a second partition plate 43 and a third partition plate 44 are arranged in the closed inner cavity, the first partition plate 42 and an end cover 414 close to the end of an air inlet pipe 49 form a fourth cavity 48, the first cavity 45 is formed between the first partition plate 42 and the second partition plate 43, the second cavity 46 is formed between the second partition plate 43 and the third partition plate 44, and the third cavity 47 is formed between the third partition plate 44 and the end cover 414 close to the end of the air outlet pipe 411; the air inlet pipe 49 penetrates through the first chamber 45 and extends into the second chamber 46, an interference baffle 413 is fixedly connected to the inner wall of one side, opposite to the air inlet pipe 49, of the second chamber 46, and a plurality of air outlet holes arranged in an array mode are formed in the air inlet pipe 49 in the first chamber 45; the air conditioner further comprises an inner inserting tube 410, the inner inserting tube 410 is communicated with the first chamber 45 and the third chamber 47, the three chambers are communicated with the fourth chamber 48 through a communicating tube 412, the air outlet pipe 411 is communicated with the fourth chamber 48, and the other end of the air outlet pipe 411 is communicated with the atmosphere. Through set up a cavity that is used for passively producing the interference noise between a plurality of grades of cavities for the air current that will get into second cavity 46 and former way of sound wave keep off and return, form the sound wave and collide and interfere, reach the effect of interfering the noise elimination, the performance of silencer 4 has been promoted, set up a cavity that is used for passively producing the interference noise between a plurality of grades of cavities of rethread and inhale the sound cotton and carry out the separation and absorb in the double casing, thereby for reaching qualified noise provides littleer silencer 4 volume, silencer manufacturing cost has been reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a tricycle silencer blast pipe connection structure, includes the first blast pipe of being connected with power and the second blast pipe of being connected with the silencer, first blast pipe and second blast pipe sealing connection, its characterized in that: the tail end of the first exhaust pipe is in threaded connection with a sealing assembly, an arc-shaped contact part is arranged at the sealing connection position of the second exhaust pipe and the first exhaust pipe, a protruding support part is arranged at the bottom of the arc-shaped contact part, and an insertion support gap is formed between the protruding support part and the arc-shaped contact part, so that the first exhaust pipe is inserted into the insertion support gap of the second exhaust pipe; the sealing component comprises a connecting sleeve and a spherical graphite sealing gasket, the connecting sleeve is in threaded connection with the first exhaust pipe, the spherical graphite sealing gasket is sleeved on the connecting sleeve, the arc-shaped contact part is in contact with and tightly presses the spherical graphite sealing gasket when the first exhaust pipe is in sealing connection with the second exhaust pipe, and the first exhaust pipe is in bolt connection with the second exhaust pipe through a silencer.

2. The exhaust pipe connecting structure of a muffler for a tricycle of claim 1, wherein: first exhaust pipe and power connecting portion are double-deck thermal-insulated pipe, are close to the end connection of first exhaust pipe has a catalyst device.

3. The exhaust pipe connecting structure of a muffler for a tricycle of claim 2, wherein: and a first gas sensor is connected to the first exhaust pipe close to the double-layer heat insulation pipe, and a second gas sensor is connected to the second exhaust pipe close to the sealing connection part.

4. The exhaust pipe connecting structure of a muffler for a tricycle of claim 1, wherein: the silencer is connected with a fixed connecting part.

5. The exhaust pipe connecting structure of a muffler for a tricycle according to claim 1 or 4, wherein: the muffler includes an impedance compound muffler.