CN1053486C - Suctiong unit of light motor bicycle - Google Patents

Abstract

A kind of suction device of small-sized vehicle, pedal 36 near car body cover 48 bottoms are installed cover part 50, and the air inlet 52 of this cover part 50 is located at pedal 36 tops, and opens forward. The air inlet 52 communicates with the front open end 72 of the suction pipe 70 , and the rear side of the front open end 72 communicates with the air filter 56 . This prevents water splashed from the pedals from intruding into the air intake 52 .

Description

Aspirating device for mopeds

The invention relates to an air intake device for an engine air supply system of a light two-wheeled motorcycle, in particular to the structure of an air intake port.

For example, No. 64-22692 discloses the following device: the suction pipe and luggage box extended from the air filter are wrapped in the body cover, and the front surface of the body cover has an air inlet. , the air enters the suction pipe from here.

Because the position of the air intake in the above structure is relatively high, it is worried that the water and dust splashed by the front wheels will enter the air intake pipe from the air intake. Therefore, it is desirable to form an air intake structure that can well block splashed water and dust.

In the structure of the previous example, the air channel must be located inside the body cover in front of the luggage box, so the air channel requires the luggage box to leave the car body cover, resulting in problems such as limiting the capacity of the luggage box and being difficult to expand the capacity. The present invention is precisely to solve these problems.

The purpose of the present invention is to provide an air suction device for a moped. Utilize this device then can solve above-mentioned problem.

In the suction device of the portable two-wheeled motorcycle of the present invention, a low-flat pedal is arranged under the seat, and the body cover wraps the luggage box under the seat and is connected with the pedal from above. The air intake device of the moped that comprises the engine group of the engine is installed in the cover, and it is characterized in that: the air intake of the engine air supply system is located on the side of the car body cover near the pedals.

And, below the car body cover, on the outside of the part including the air inlet, a detachable cover part is installed, and an open end is set forward on this cover part communicated with the air inlet of the car body cover, and simultaneously for connecting the cover The open end of the part and the air channel of the air inlet of the car body cover are made into a labyrinth structure, and ribs with a certain interval in the front and rear and overlapped with each other are respectively provided. protrusion.

Because the air inlet is located on the side of the car body cover near the pedals, the splashed water and dust are effectively blocked by the pedals, making it difficult to enter the air inlets. Therefore, splashed water and dust can be effectively prevented from entering the suction pipe, and the maintenance period of the air filter can be extended.

Moreover, the air channel is not arranged in front of the luggage box, and the luggage box can be close to the body cover, so the space of the luggage box can be increased. In addition, the unused dead angle under the car body cover is effectively used to improve the space utilization rate.

A detachable cover part is mounted on the outer side including the air intake part under the body cover, and on this cover part, an opening end is provided forwardly in communication with the air intake port of the outer cover, and is integrally formed with the cover part and the vehicle body cover respectively. The ribs are arranged at a certain interval before and after, and are staggered with each other. Since the air passage connecting the open end and the air inlet of the car body cover is in the form of a labyrinth, it is more difficult for water to enter the suction pipe. And this labyrinth structure is easy to form.

Embodiments of the present invention are described below in conjunction with the figures, wherein,

Fig. 1 is a partial side view of the embodiment,

Fig. 2 is a side view of a moped,

Fig. 3 is the top view of moped,

Fig. 4 is the front view of moped,

Fig. 5 is a 5-5 sectional view in Fig. 1,

Figure 6 is a partial front view of the example,

Fig. 7 is a sectional view taken along line 7-7 in Fig. 1 .

Symbol represents among the figure: 36-pedal plate, 48-car body cover, 50-side ventilation plate, 52-intake port, 54-carburetor, 56-air filter, 70-suction pipe.

First, the overall structure of the moped will be described based on FIGS. 2 to 4 . Fig. 2 is a side view of the two-wheeled motorcycle, Fig. 3 is a top view, and Fig. 4 is a front view.

As can be seen in the figure, the front fork 4 supports the front wheel 2, the front fender 6 is fixed on the front fork 4, the upper end of the front fork 4 is connected to the handlebar post 8, and the handlebar post 8 is wrapped with the front fender 6 and the front cover 10 .

Headlamp 12 is equipped with on the front lower front of front cover 10, and left and right turning lights 14 are equipped with on both sides, connects cargo basket 16 with screw 19 on the pipe material 18 in front of front cover 10. The upper end of pipe material 18 is connected with bracket 20 in front of handlebar column 8 with bolt 23, and the lower end is connected with support cantilever beam 21 with bolt 23. The strength of the cantilever beam 21 is increased by the support 25 and the subframe 27 .

The pipe 18 is connected to the handlebar post 8 via a bracket 20 . The handlebar shaft 22 can be freely rotated and fixed on the handlebar post 8. The handlebar shaft 22 extends upwards from the front cover 10 and is covered by the handlebar cover 24. The upper end of the handlebar shaft extends to both sides of the handlebar cover 24, forming Left and right two handles 26.

Meter 28 is equipped with on the outer cover 24 of direction, and headlight 30 is equipped with in front, and loudspeaker 32 is equipped with in the middle.

Handlebar column 8 lower ends obliquely downwards, connect main vehicle frame 34 backward, the curved saddle of main vehicle frame 34 installs pedal 36, front cover 10 lower rear ends are connected with pedal 36. Fuel tank 29 is fixed on the main vehicle frame 34, seals with guard plate 37, and auxiliary vehicle frame 27 protects fuel tank 29 both sides.

Pedal 36 rear portion 38 is made into oblique upward structure, supports vehicle seat 40, luggage box 42, fuel tank 44, rear object rack 46 etc.

The periphery of the rear portion 38 including the luggage box 42 under the seat 40 and the fuel tank 44 is covered with a vehicle body cover 48 . Car body cover 48 bottoms, pedal 36 sides are provided with detachable side ventilation plate 50 (corresponding to lid part of the present invention), and it is fixed on the car body cover from the outside, has formed air inlet 52 here. A carburetor 54 is installed inside the vehicle body cover 48 behind the air inlet 52 , and air is supplied to the carburetor 54 through an air filter 56 behind it.

The air cleaner 56 communicates with an air inlet 52 described later. Additionally, a swing-out engine block 58 is located behind the footboard 36 and below the rear main frame 38 and is supported by a pivot 59 through a link 60 . The pivot 61 provided at the front end of the connecting rod 60 is fixed on the bracket 62 , and the bracket 62 is fixed on the rear part 38 of the main frame.

A rubber pad 65 is installed between the parts 63 and 64 protruding forward from both sides of the pivot 61 and the bracket 62, the pivots 59 and 61 are respectively composed of rubber fixed bushings, and the rear wheel 67 supports the rear end of the engine block 58 . In addition, symbol 68 is a muffler among the figures, and 69 is a rear shock absorber.

Next, the intake structure of the air cleaner 56 will be described. Fig. 1 is a partial side view of the embodiment, which is also a partial enlarged view of the air filter 56 in the side view of the motorcycle, and Fig. 5 is a sectional view along line 5-5 in Fig. 1 .

As can be seen from FIG. 5 , the air filter 56 communicates with the air inlet 52 through a suction pipe 70 . Make thick-walled 74 structures around the front opening 72 of suction pipe 70 , the middle part is bellows 76 , the bellows rear side is made thick-walled 78 structures, and thick-walled 78 rear ends 80 stretch into the filter prechamber 82 of air filter 56 . The suction pipe 70 communicates with the filter front cavity 82 of the air filter 56 , and its open end 84 is sealed by a thick wall 78 .

The front opening 72 inserts the thick wall 74 into the open end 88 on the rear side of the air suction concave plate 86. The air suction convex plate 86 is formed on the vehicle body cover 48, and the edge of the open end 88 is inserted into the groove around the thick wall 74 to seal each other. Chimeric.

The front end of the front opening 72 opens obliquely downwards, and the front of the front opening 72 forms a labyrinth air duct with the front of the body cover side rib 90, and the rib 90 is connected with the suction concave plate 86 and protrudes outwards. At the same time, side ribs 92 of the ventilation panel 50 are provided, which protrude in the direction of the body cover.

As shown in FIG. 3 , the air entering the air filter 56 to filter the front cavity 82 passes through the filter element 94 and enters the filter rear cavity 96 , and is supplied to the carburetor 54 through the tapered pipe 98 .

As shown in Fig. 1 and Fig. 3, the air inlet 52 is provided on the upper side near the pedal 36 and opens forward (refer to Fig. 4). As shown in FIG. 1 , a wind guiding curved surface is formed around the air inlet 52 in the side ventilation plate 50 , that is, a concave plate portion 100 .

FIG. 6 is a view showing the left ventilation panel 50 from the front, and FIG. 7 is a sectional view taken along line 7-7 in FIG. 1 . Visible in the figure, the front upper end of side ventilation plate 50 forms inward boss 102, by inserting it in the matching hole 104 of vehicle body cover 48, side ventilation plate 50 can be fixed on the outside of vehicle body cover 48 (Fig. 7). The rear end of the side ventilation plate 50 is fixed on the vehicle body cover 48 with a screw 103 .

As shown in FIG. 7 , the boss 106 on the lower part of the vehicle body cover 48 is fixed on the protruding support 108 beside the rear part 38 of the main frame with a bolt 110 .

The action of this embodiment will be described below. As shown in FIG. 1 and FIG. 5 , the air enters the suction duct 70 from the air inlet 52 and flows into the pre-filter chamber 82 . At this time, because the opening position of the air inlet 52 is above the pedal 36, the water splashed from the road surface is blocked by the pedal. Therefore, it is difficult to splash water into the air inlet 52 .

Even if water enters in the air inlet 52, it will be blocked by the labyrinth structure formed by the body cover side rib 90 and the ventilation panel side rib 92, so it is difficult to enter in the air cleaner 56. Moreover, this labyrinth structure is easy to form, and the side ventilation panel 50 is fixed on the vehicle body cover from the outside.

The air channel is not located at the front of the luggage box 42, and the air intake duct is located below it, so that the front of the luggage box 42 can be close to the car body cover 48, so that the space of the luggage box 42 can be enlarged to accommodate large items such as helmets Degree. In addition, the unused dead space inside the vehicle body cover 48 and below the luggage box 42 is effectively utilized, thereby improving the space utilization rate.

The side ventilation panel 50 is fixed on the vehicle body cover 48 from the outside, so that the air inlet and the labyrinth air passage are easily formed. In addition, because the air intake pipe 70 adopts the bellows 76, even if the air cleaner 56 vibrates with the engine block, the shock resistance of the air intake pipe 70 itself and its connecting parts can be improved.

The connection between the thick wall 74 of the front opening 72 and the opening 88 adopts a plug-in connection, so the connection becomes simple, the work efficiency is improved, and the number of parts is reduced. Therefore, the cost can be reduced.

The present invention is not limited to this example, and can be applied to various situations. For example: the front opening can be fixed on the footboard 36 or on the luggage box 42, and the plug-in connection of the thick wall 74 can be replaced by a screw connection.

Claims (2)

1. An air suction device for a light two-wheeled motorcycle. A low-flat pedal is set under the seat, and the body cover wraps the luggage box under the seat and is connected to the pedal from above. The air intake device of the light two-wheeled motorcycle including the engine group of the engine is installed in the body cover, and it is characterized in that: the air intake of the engine air supply system is located on the side of the car body cover near the pedals. 2. The air intake device for a moped as claimed in claim 1, wherein a detachable cover part is installed on the outer side of the part including the air inlet at the lower part of the body cover, and the cover part There is an open end communicating with the air inlet of the car body cover facing forward. In order to make the air channel connecting the open end of the cover part and the air inlet of the car body cover into a labyrinth structure, a certain interval between the front and the back is provided. Staggered overlapping ribs, the ribs are respectively integrated with the ventilation panel and the body cover, and protrude to the side.

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