CN2727417Y - Exhaust section regulating mechanism for muffler exhaust pipe - Google Patents

Abstract

The utility model relates to an exhaust cross section regulating mechanism for muffler exhaust pipe. The utility model comprises a choke valve, a control handle and a dragline. The choke valve is arranged in the exhaust pipe and combined with the rotating disk, and can rotate corresponding to the exhaust pipe. The control handle is sleeved on the motorcycle handle pipe. The dragline is connected on the rotating disk and the control handle. A torsion spring is functioned between the exhaust pipe and the rotating disk. A limiting device is fixed on the exhaust pipe and is used to limit the rotation of the rotating disk. The regulating mechanism can alter the size of the exhaust cross section of the exhaust pipe and then the exhaust resistance of the exhaust pipe is altered, which causes the utility model to adapt for the variation of the engine working condition. Thus, the dynamic performance and the economic performance of the engine can be simultaneously obtained the optimum expression in high speed and low speed operation.

Description

Muffler tail pipe exhaust cross section controlling mechanism

Technical field

The utility model relates to a kind of controlling mechanism that is used to regulate noise eliminator of motorcycle outlet pipe exhaust cross-sectional sizes.

Technical background

The size in the power performance of motorcycle engine and economic performance and muffler tail pipe exhaust cross section has certain relation, when the exhaust cross section big, i.e. exhaust resistance hour, the high speed performance of motor is good; Little when the exhaust cross section, when promptly exhaust resistance was big, the low-speed performance of motor was good.Yet, the exhaust cross-sectional sizes of noise eliminator of motorcycle outlet pipe can not change at present, the exhaust resistance that is silencing apparatus immobilizes, it can not change with engine operating condition, thereby makes power performance and the economic performance of motor when high speed and low-speed running can not obtain best the embodiment simultaneously.

The model utility content

The purpose of this utility model provides a kind of muffler tail pipe exhaust cross section controlling mechanism, to realize the adjusting to muffler tail pipe exhaust cross-sectional sizes.

Muffler tail pipe exhaust described in the utility model cross section controlling mechanism, comprise by rotating shaft and be installed in the outlet pipe chock plate that can rotate with respect to outlet pipe, and the rotating disk that is positioned at the outlet pipe side, rotating disk combines as a whole by rotating shaft and chock plate, and chock plate can together be rotated with rotating disk; Be set with torsion spring in the rotating shaft between outlet pipe and the rotating disk, its two arm acts on respectively on outlet pipe and the rotating disk, makes rotating disk can obtain a rotatory force all the time; On outlet pipe, be fixed with limit stoper, with the rotation of restriction rotating disk under the torsion spring effect; Be set with on the motorcycle handle tube and can be connected with stay cord between Joystick and the rotating disk with respect to the Joystick of handle tube rotation, stay cord one end is wrapped on the Joystick, and the other end is wrapped on the rotating disk.

Offer on the chock plate porose, to reduce the impact force of motorcycle exhaust to chock plate.

On outlet pipe, radially be mounted with two axle sleeves, described shaft support in two axle sleeves and with its Spielpassung, rotating shaft can freely be rotated in two axle sleeves.

Described limit stoper is made up of the caging bolt that is fixed on the support block on the outlet pipe and be screwed on the support block, by regulating caging bolt, the pivotal position of can regulate rotating disk when free state determined the initial position of chock plate when not being operated in the outlet pipe then.

Offer a breach on the rotating disk, caging bolt is arranged in this breach, conflicts in rotating disk breach side in its termination, to limit the pivotal position of rotating disk.

Muffler tail pipe exhaust described in the utility model cross section controlling mechanism is installed on the motorcycle, situation during according to motorcycle driving is regulated the Joystick on the motorcycle handle tube, change the position of chock plate in outlet pipe by stay cord, rotating disk, to change outlet pipe exhaust cross-sectional sizes, thereby change the exhaust resistance of outlet pipe, make it to adapt, thereby make power performance and the economic performance of motor when high speed and low-speed running can obtain best embodiment simultaneously with the engine operating condition variation.

Description of drawings

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

Fig. 1 is the schematic representation of a kind of concrete structure of the utility model;

Fig. 2 is the sectional view of A-A line among Fig. 1.

Embodiment

As shown in Figure 1 and Figure 2, this muffler tail pipe exhaust cross section controlling mechanism comprises a chock plate 9, chock plate 9 is fixed in the rotating shaft 8, rotating shaft 8 is bearing in two axle sleeves 12 that radially are fixed on the outlet pipe 1, and with its Spielpassung, rotating shaft 8 can freely be rotated in two axle sleeves 12.Be provided with a rotating disk 2 in outlet pipe 1 side, rotating disk 2 is fixedly connected with the end that rotating shaft 8 is stretched out outside the outlet pipe 1, thereby rotating disk 2 is combined as a whole by rotating shaft 8 and chock plate 9, and chock plate 9 can together be rotated with rotating disk 2.Offer on the chock plate 9 porose 10, to reduce the impact force of motorcycle exhaust to chock plate 9.Be set with torsion spring 11 in the rotating shaft 12 between outlet pipe 1 and the rotating disk 2, its two arm acts on respectively on outlet pipe 1 and the rotating disk 2, makes rotating disk 2 can obtain a rotatory force all the time.On outlet pipe 1, be fixed with limit stoper, with the rotation of restriction rotating disk 2 under torsion spring 11 effects, this limit stoper is formed by being fixed on support block 7 on the outlet pipe 1 and the caging bolt 6 that is screwed on the support block 7, caging bolt 6 is arranged in the breach of offering on the rotating disk 2, conflicts in rotating disk breach side in its termination.By regulating caging bolt 6, the pivotal position of can regulate rotating disk 2 when free state determined the initial position of chock plate 9 when not being operated in the outlet pipe 1 then.Be set with on motorcycle handle tube 5 and can be connected with stay cord 3 between Joystick 4 and the rotating disk 2 with respect to the Joystick 4 of handle tube 5 rotations, stay cord 3 one ends are wrapped on the Joystick 4, and the other end is wrapped on the rotating disk 2.The Motor-cyclist can realize the variation of muffler tail pipe exhaust cross-sectional sizes by the operation to Joystick 4 on the handle tube 5.

Claims (5)

1, muffler tail pipe exhaust cross section controlling mechanism, it is characterized in that: comprise by rotating shaft (8) being installed in the outlet pipe (1) chock plate (9) that can rotate with respect to outlet pipe, and the rotating disk (2) that is positioned at the outlet pipe side, rotating disk combines as a whole by rotating shaft and chock plate, in the rotating shaft between outlet pipe and the rotating disk, be set with torsion spring (11), its two arm acts on respectively on outlet pipe and the rotating disk, on outlet pipe, be fixed with limit stoper, with the rotation of restriction rotating disk under the torsion spring effect; Be set with on motorcycle handle tube (5) and can be connected with stay cord (3) between Joystick and the rotating disk with respect to the Joystick (4) of handle tube rotation, stay cord one end is wrapped on the Joystick, and the other end is wrapped on the rotating disk.

2, muffler tail pipe exhaust according to claim 1 cross section controlling mechanism is characterized in that: offer porose (10) on the described chock plate,

3, muffler tail pipe exhaust according to claim 1 and 2 cross section controlling mechanism is characterized in that: on outlet pipe (1), radially be mounted with two axle sleeves (12), described rotating shaft (8) be bearing in two axle sleeves and with its Spielpassung.

4, muffler tail pipe exhaust according to claim 3 cross section controlling mechanism, it is characterized in that: described limit stoper is made up of the caging bolt (6) that is fixed on the support block (7) on the outlet pipe (1) and spin thereon.

5, muffler tail pipe exhaust according to claim 4 cross section controlling mechanism, it is characterized in that: rotating disk offers a breach on (2), and caging bolt (6) is arranged in this breach, and conflict in rotating disk breach side in its termination.

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