CN218093199U - Silencer and motorcycle - Google Patents

Abstract

The utility model relates to a vehicle silencer field discloses a silencer and motorcycle, the silencer includes the outer barrel that one end opening set up, the open end lateral wall of outer barrel is equipped with the breach, outer barrel in-connection has the tail pipe subassembly, the tail pipe subassembly includes baffle and tail pipe, the baffle is a plurality of amortization chambeies with outer barrel internal partitioning, tail pipe one end welding communicates with the amortization chamber on the baffle, the tail pipe other end passes the breach and stretches out the outer barrel outside, be equipped with the tail pipe in the breach and support, the tail pipe supports and limits tail pipe location in the breach and blocks the breach, the welding of outer barrel open end has the tail cover, the tail cover supports the restriction in the breach with the tail pipe. The utility model belongs to the integral welding of tail pipe can guarantee the wholeness of tail pipe, smoothness nature, and welding outward appearance nature has promoted technology outward appearance uniformity simultaneously greatly.

Description

Silencer and motorcycle

Technical Field

The utility model relates to a vehicle silencer field, concretely relates to silencer and motorcycle.

Background

The silencer is welded with the exhaust pipe of the vehicle, and the outer cover, the partition board, the silencing pipe and the like of the silencer are welded together to form a whole. The silencer is divided into several cavities by partition boards, all the cavities are connected together by silencing tubes, when the high-temperature waste gas of the engine enters the silencer through the exhaust pipe at high speed, the airflow can only be throttled and expanded due to the blocking of the partition boards in the silencer, so that the sound energy is greatly attenuated due to the sudden change for many times, and the effect of reducing the exhaust noise is achieved. At present, the silencing tubes at the exhaust end of the silencer are all straight tubes which are vertically connected to the end face of the silencer outer cover and are fixed through circumferential welding seams. After the internal partition plate, the silencing pipe and the outer cover are welded in the production process, a tail pipe is independently arranged on the outer side of the outer cover of the silencer, and the tail pipe is welded and connected with the tail end of the silencing pipe on the outer cover through a circumferential weld. The structure and the process have more disadvantages, for example, the silencing pipe is vertically connected with the end face of the outer cover, the welding manufacturability is poor, the operation is difficult during welding, and time and labor are wasted; the tail pipe is independently welded at the tail end of the silencing pipe, and the pipe is welded with the pipe, so that the precision is poor, the quality of a welding seam is difficult to guarantee, and the appearance is poor; and the tail pipe is a part welded on the silencer locally, so that the consistency and qualification rate of the whole process of the exhaust pipeline of the silencer are relatively low, and the smoothness of the air flow emission is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a silencer tail pipe welded structure to improve in the prior art silencer tail pipe and weld the hush pipe end on the dustcoat outer wall alone, the precision is difficult to control, and welding quality is difficult to guarantee, the lower problem of technology uniformity qualification rate.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a silencer, includes the outer barrel that one end opening set up, the open end lateral wall of outer barrel is equipped with the breach, the outer barrel in-connection has the baffle, be connected with the tail pipe on the baffle, tail pipe one end rigid coupling communicates with the amortization chamber on the baffle, the tail pipe other end passes the breach and stretches out the outer barrel outside, is equipped with the tail pipe in the breach and supports, the tail pipe supports and restricts the tail pipe location in the breach and with breach shutoff, outer barrel open end is connected with the tail-hood, the tail-hood supports the tail pipe and restricts in the breach.

The principle of the scheme is as follows: in practical application, the outer barrel is used as a shell structure of the silencer, the tail cover and the outer barrel form a closed cavity, the plurality of silencing cavities are separated by the partition plates, vehicle tail gas flows repeatedly in the silencing cavities to be discharged through the tail pipe after sound energy is reduced, the tail pipe is directly fixedly connected to the partition plates and is connected with the plate, connection manufacturability is better, operation is more convenient, connection quality is more convenient, the tail pipe which penetrates through the notch and is exposed out of the outer barrel is integrated, and the condition that the pipe and the pipe are welded when the tail pipe is connected in the prior art does not exist. The tail pipe is limited and fixed through the tail pipe support, and then the tail pipe is fixed in the notch in a welding mode. The tail pipe support is also connected with the outer cylinder body and the tail pipe through welding, the tail pipe support seals a gap on the outer cylinder body, and the tail pipe support and the tail cover ensure the sealing performance of the silencing cavity together. The tail pipe is integrally welded, integrity, smoothness and welding appearance of the tail pipe can be guaranteed, and process appearance consistency is greatly improved.

Preferably, as an improvement, the tail pipe is a Z-shaped circular pipe, and the bent section of the tail pipe penetrates through the notch. Therefore, the tail pipe is fixedly connected with the partition plate and can smoothly extend out of the outer barrel body, and the smooth exhaust emission can be ensured.

Preferably, as an improvement, the notch is a U-shaped opening, the right end of the tail pipe support is provided with a U-shaped groove, and the tail pipe support positions and limits the tail pipe at the bottom of the U-shaped opening through the U-shaped groove. The tail pipe is more stable accurate in the location in the breach like this, and the convenient welding of back is fixed a position between U type mouth, tail pipe, the U type groove, more is favorable to guaranteeing the leakproofness in the interior amortization chamber of outer barrel.

Preferably, as an improvement, the tail pipe support is in a bent plate shape, and the upper end and the lower end of the tail pipe support extend into the outer cylinder body and are abutted against the inner wall of the outer cylinder body. Therefore, the tail pipe support can effectively block the gap on the side wall of the outer cylinder body, the sealing performance of the silencing cavity in the outer cylinder body is ensured, and the tail gas is prevented from leaking and generating noise.

Preferably, as an improvement, the left end of the tail pipe support is provided with a clamping plate with the width being the same as that of the U-shaped opening, the left end of the tail pipe support is flush with the open end of the outer cylinder body, and the clamping plate is inserted into the tail cover. Therefore, the tail pipe supports more completely block the U-shaped opening.

The utility model has the advantages that:

1. the structure ensures the integrity of the tail pipe, and has more reliable precision and strength and simpler process.

2. The structure ensures welding appearance commodity.

3. The structure ensures the reliability of the welding process and greatly improves the qualification rate of products.

4. The structure ensures that the tail pipe is an integral condition, and the air flow is smoother.

The utility model also provides a motorcycle uses aforementioned silencer, and exhaust emission is smooth and easy, stable.

Drawings

Fig. 1 is an exploded view of an embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the silencer comprises an outer cylinder body 1, a U-shaped opening 2, a third silencing pipe 3, a tail pipe 4, a U-shaped groove 5, a tail pipe support 6, a tail cover 7, a clamping plate 8, a first silencing pipe 9, a second silencing pipe 10 and a partition plate 11.

Example 1, substantially as shown in figure 1: a muffler comprises an outer cylinder body 1, a tail pipe 4 assembly, a tail pipe support 6 and a tail cover 7. The right end of the outer cylinder body 1 is welded with an exhaust pipe, and the left end of the outer cylinder body 1 is provided with an opening and the side wall of the left end is provided with a U-shaped opening 2. The 4 subassemblies of tail pipe include baffle 11, and first through-hole has been seted up at 11 middle parts of baffle, and the welding of 11 right sides of baffle has the intake pipe with first through-hole intercommunication, and the welding of 11 left sides of baffle has the first hush pipe 9 with first through-hole intercommunication. A second through hole is formed in the partition plate 11 on the rear side of the first through hole, a second silencing pipe 10 penetrates through the second through hole, and the second silencing pipe 10 is fixedly welded with the partition plate 11. A third through hole is formed in the partition plate 11 on the front side of the first through hole, and a third silencing pipe 3 communicated with the third through hole is welded on the right side of the partition plate 11. The length of the second silencing pipe 10 at the right end of the partition plate 11 and the length of the third silencing pipe 3 are both smaller than the length of the air inlet pipe. The left end of the partition board 11 is welded with a tail pipe 4 communicated with the third through hole, and the tail pipe 4 is bent to be Z-shaped.

The tail pipe support 6 is a plate with the outline of the outer barrel body 1 and the outline of the side wall, the U-shaped groove 5 is formed in the right end of the tail pipe support 6, the width of the middle of the tail pipe support 6 is larger than that of the U-shaped opening 2, and the clamping plate 8 with the width same as that of the U-shaped opening 2 is arranged at the left end of the tail pipe support 6. The tail cover 7 is a U-shaped cover body, the tail cover 7 is buckled on the opening at the left end of the outer cylinder body 1, and the clamping plate 8 at the left end of the tail pipe support 6 is inserted into the tail cover 7.

The specific implementation process is as follows: the tail pipe 4 subassembly welding is whole back, and is whole from outer barrel 1 left end opening embedding outer barrel 1, and the air inlet pipe right-hand member inserts in the blast pipe after the embedding, and the tight seal of intake pipe right-hand member outer wall and blast pipe inner wall support, and 4 left ends of tail pipe pass the U type mouth 2 on the outer barrel 1 and stretch out to the outer barrel 1 outside, and baffle 11 is fixed with outer barrel 1 inner wall welded and sealed again. The tail pipe support 6 is inserted into the U-shaped opening 2, the tail pipe 4 is abutted against the bottom of the U-shaped opening 2 through the U-shaped groove 5 of the tail pipe support 6, the edges of the upper side and the lower side of the tail pipe support 6 are abutted against the inner wall of the outer barrel body 1 on the outer side of the U-shaped opening 2, and the clamping plate 8 at the left end of the tail pipe support 6 is flush with the left end of the outer barrel body 1. And then the tail cover 7 is buckled and covered at the left end of the outer cylinder body 1, the clamping plates 8 of the tail pipe support 6 are buckled and covered together, so that the U-shaped opening 2 on the outer cylinder body 1 is sealed by the tail pipe support 6 and the tail pipe 4, and the tail cover 7, the outer cylinder body 1 and the tail pipe support 6 are welded and fixed to form the silencer.

Embodiment 2 this embodiment provides a motorcycle employing the muffler of embodiment 1 as an exhaust gas discharge structure.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (6)

1. A muffler characterized by: the tail pipe positioning limiting device comprises an outer barrel body with an opening at one end, wherein a notch is formed in the side wall of the opening end of the outer barrel body, a partition plate is connected in the outer barrel body, a tail pipe is connected onto the partition plate, one end of the tail pipe is fixedly connected onto the partition plate, the other end of the tail pipe penetrates through the notch to extend out of the outer barrel body, a tail pipe support is arranged in the notch, the tail pipe support limits the tail pipe in the notch in a positioning mode and blocks the notch, the opening end of the outer barrel body is connected with a tail cover, and the tail cover limits the tail pipe support in the notch.

2. A muffler according to claim 1, wherein: the tail pipe is a Z-shaped circular pipe, and the bent section of the tail pipe penetrates through the notch.

3. A muffler according to claim 2, wherein: the breach is U type mouth, the tail pipe supports the right side end and is equipped with U type groove, and the tail pipe supports and restricts the tail pipe location in U type mouthful bottom through U type groove.

4. A muffler according to claim 3, wherein: the tail pipe support is in a bent plate shape, and the upper end and the lower end of the tail pipe support extend into the outer cylinder body and are abutted against the inner wall of the outer cylinder body.

5. The muffler of claim 4, wherein: the left end that the tail pipe supported is equipped with the cardboard that the width is the same with U type mouth width, and the tail pipe supports the left end and flushes with outer barrel open end, and the cardboard inserts in the tail-hood.

6. A motorcycle characterized in that: use of a muffler according to any of claims 1-5.

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