CN2760242Y - Dismountable exhaust muffler - Google Patents

Abstract

The utility model relates to a dismountable exhaust muffler, which comprises a muffler and an exhaust pipe connected with the muffler, wherein the muffler is provided with an outer cylinder and an inner pipe; catalyst is installed in the inner pipe of the muffler; the connecting end between the exhaust pipe and the muffler is fixedly welded with a flange disc; the outer cylinder and the inner pipe on the connecting end between the muffler and the exhaust pipe are welded with a flange disc provided with threaded holes; the muffler is connected with the exhaust pipe through the two flange discs by using screws. The dismountable exhaust muffler has the advantages that the exhaust pipe and the muffler are easy to dismount, and thus, the dismounting and the replacement of the catalyst in the exhaust muffler are convenient; when the catalyst is abandoned, only the catalyst needs to be replaced, and the exhaust muffler can continue to be used, and thus, the waste of resources can not be caused.

Description

Detachable exhaust silencer

Technical field

The utility model relates to a kind of exhaust muffler for motorcycle.

Technical background

Exhaust muffler for motorcycle is the device that is used to handle the motorcycle engine toxic emission, to reduce noise and the toxic emission pollution on the environment that motor produces.Exhaust silencer is formed by connecting by outlet pipe and silencing apparatus, and in outlet pipe or silencing apparatus catalyst is installed, and catalyst is that the centre is cellular cylindrical body, is used for the purifying engine exhaust gas discharged.In the motorcycle using process, because working life that is far longer than catalyst working life of exhaust silencer, so often when exhaust silencer still can normally use, catalyst has been scrapped and can not normally have been used.And because existing exhaust silencer, its outlet pipe and silencing apparatus are connected as a single entity by welding, thereby the catalyst of scrapping can not be taken out in exhaust silencer, like this because the scrapping of catalyst, and cause whole exhaust silencer to be scrapped, and this moment, silencing apparatus did not also reach working life far away, so the structure of existing exhaust silencer has caused the significant wastage of resource.

The model utility content

Technical problem to be solved in the utility model provides a kind of detachable exhaust silencer, makes the catalyst that is installed in the exhaust silencer can retract replacing easily.

Detachable exhaust silencer described in the utility model, comprise silencing apparatus with urceolus and interior pipe, and the outlet pipe that is connected with silencing apparatus, catalyst is installed in the pipe in silencing apparatus, be welded with flange plate at outlet pipe and silencing apparatus connecting end, be welded with the flange plate with tapped hole on the urceolus of silencing apparatus and outlet pipe connecting end and interior pipe, silencing apparatus and outlet pipe are connected as a single entity with screw by two flange plate.

Also be welded with lining ring at outlet pipe and silencing apparatus connecting end, the endoporus that is weldingly fixed on the flange plate on the silencing apparatus is a step hole, and described lining ring is positioned at this endoporus, and is provided with seal ring between lining ring end face and this endoporus step surface.

The utility model is owing to have flange plate in the equal welded and installed of the connecting end of outlet pipe and silencing apparatus, outlet pipe and silencing apparatus are connected as one with screw by two flange plate, make outlet pipe and silencing apparatus be easy to dismounting, thereby be convenient to the dismounting and change of catalyst in the exhaust silencer.When catalyst is scrapped, only need to change catalyst, exhaust silencer still can continue to use, so can not cause the waste of resource.And this kind Placement of the utility model outlet pipe and silencing apparatus, can not make exhaust silencer at outlet pipe and silencing apparatus weld owing to phenomenon of rupture appears in large-area weld seam, promoted the quality of product of exhaust silencer.Owing between lining ring end face and silencing apparatus upper flange plate endoporus step surface, be provided with seal ring, can prevent effectively that waste gas from leaking from outlet pipe and silencing apparatus joint.

Description of drawings

Now in conjunction with the accompanying drawings the utility model is described in further detail.

Fig. 1 looks generalized section for the master of detachable exhaust silencer described in the utility model;

Fig. 2 is the enlarged view at M position among Fig. 1.

Embodiment

As Fig. 1, shown in Figure 2, this detachable exhaust silencer comprises the silencing apparatus with urceolus 7 and interior pipe 8, and the outlet pipe 1 that is connected with silencing apparatus, catalyst 9 is installed in the pipe in silencing apparatus, be welded with flange plate 3 and lining ring 5 at outlet pipe 1 and silencing apparatus connecting end, on the urceolus 7 of silencing apparatus and outlet pipe 1 connecting end and interior pipe 8, be welded with flange plate 4 with tapped hole, the endoporus of this flange plate 4 is a step hole, described lining ring 5 is positioned at this endoporus, and be provided with seal ring 6 between lining ring 5 end faces and this endoporus step surface, silencing apparatus and outlet pipe 1 are by two flange plate 3,4 usefulness screws 2 are connected as a single entity.Pipe 8 is provided with reducing 10 in the silencing apparatus, and the catalyst 9 in being installed in the pipe 8 moves axially along interior pipe 8 in interior pipe 8 with restriction catalyst 9 between this reducing 10 and seal ring 6.

Claims (2)

1, detachable exhaust silencer, the silencing apparatus that comprises have urceolus (7) and interior pipe (8), and the outlet pipe (1) that is connected with silencing apparatus, catalyst (9) is installed in the pipe in silencing apparatus, it is characterized in that: be welded with flange plate (3) at outlet pipe and silencing apparatus connecting end, be welded with the flange plate (4) with tapped hole on the urceolus of silencing apparatus and outlet pipe connecting end and interior pipe, silencing apparatus and outlet pipe are connected as a single entity with screw (2) by two flange plate (3,4).

2, detachable exhaust silencer according to claim 1, it is characterized in that: also be welded with lining ring (5) at outlet pipe (1) and silencing apparatus connecting end, the endoporus that is weldingly fixed on the flange plate (4) on the silencing apparatus is a step hole, described lining ring is positioned at this endoporus, and is provided with seal ring (6) between lining ring (5) end face and this endoporus step surface.

Images