CN214367649U - Ventilation structure of gear box and motorcycle - Google Patents

Abstract

The utility model discloses a ventilation structure and motorcycle of gear box, ventilation structure includes: a gear box provided with a breather pipe; the ventilation box is fixed on the outer side surface of the air filter, the ventilation box is connected with the cover plate, a blind cavity is formed between the ventilation box and the cover plate, the lower end of the ventilation box is provided with a ventilation port communicated with the blind cavity, the upper end of the ventilation box is provided with a pipe nozzle communicated with the blind cavity, the end part of the ventilation pipe is connected with the pipe nozzle, the cover plate is provided with a first baffle close to the ventilation port, the first baffle is located below the pipe nozzle, and gaps are formed between the two ends of the first baffle and the side wall of the blind cavity. The breather pipe of gear box is connected to the blind chamber of logical air box, has arranged first baffle in the blind chamber, effectively blocks dust and water in the air and gets into the gear box through the breather pipe, and the blind chamber is mutually independent with the inner chamber of empty filter moreover, has eliminated the machine oil in the gear box and has been sucked the hidden danger to empty filter, guarantees the gear box steady operation.

Description

Ventilation structure of gear box and motorcycle

Technical Field

The utility model relates to a motorcycle technical field, in particular to ventilation structure of gear box and applied this ventilation structure's motorcycle.

Background

The transmission gear box of motorcycle engine usually has breather pipe, can be with its interior oil gas that gives off because of the engine oil temperature rise discharge, maintain the normal of the atmospheric pressure in the gear box. The breather pipe is generally directly communicated with the atmosphere, the breather pipe of a part of vehicle types is communicated with a dirty cavity or a clean cavity of the air filter to prevent muddy water from entering the gear box from the breather pipe, and the engine inhales through the air filter to assist combustion, so that the internal pressure of the air filter is reduced to form negative pressure when the engine inhales, and the condition that the engine oil in the gear box is sucked out due to the negative pressure is caused, so that the consumption of the engine oil in the gear box is increased, and the normal work of the gear box is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a ventilation structure of gear box can prevent that muddy water from getting into the gear box from the breather pipe, has eliminated the hidden danger that the machine oil in the gear box was sucked again.

The utility model discloses provide the motorcycle that has above-mentioned ventilation structure simultaneously.

According to the utility model discloses a ventilation structure of gear box of first aspect embodiment includes: a gear box provided with a breather pipe; the ventilation box is fixed on the outer side face of the air filter and is connected with the cover plate, a blind cavity is formed between the ventilation box and the cover plate, a ventilation port communicated with the blind cavity is formed in the lower end of the ventilation box, a nozzle communicated with the blind cavity is formed in the upper end of the ventilation box, the end of the ventilation pipe is connected with the nozzle, a first baffle close to the ventilation port is arranged on the cover plate and located below the nozzle, and gaps are formed between the two ends of the first baffle and the side wall of the blind cavity.

According to the utility model discloses ventilation structure of gear box has following beneficial effect at least: the breather pipe of gear box is connected to the blind chamber of logical air box, has arranged first baffle in the blind chamber, effectively blocks dust and water in the air and gets into the gear box through the breather pipe, and the blind chamber is mutually independent with the inner chamber of empty filter moreover, has eliminated the machine oil in the gear box and has been sucked the hidden danger to empty filter, guarantees the gear box steady operation.

According to some embodiments of the first aspect of the present invention, the air filter is located above the gear box, and the ventilation box is located toward the outer side surface of the gear box.

According to some embodiments of the first aspect of the present invention, the left side wall of the aeration box on which the nozzle is provided is arranged obliquely, and the vent is located on the right side of the lower end of the left side wall.

According to some embodiments of the first aspect of the present invention, the lower end of the left side wall is provided with a second baffle facing downwards.

According to some embodiments of the first aspect of the present invention, the right side wall of the venting box is arranged obliquely, and the vent is located between the right side wall and the left side wall.

According to some embodiments of the first aspect of the present invention, the lower end of the right side wall is provided with a third baffle facing downwards.

According to some embodiments of the first aspect of the present invention, the vent box is provided with a fourth baffle, the fourth baffle being located in the middle of the vent, the fourth baffle shielding part of the vent.

According to some embodiments of the first aspect of the present invention, the vent pipe is sleeved outside the nozzle, and the vent pipe and the nozzle are in interference fit.

According to some embodiments of the first aspect of the present invention, the cover plate and the venting box are detachably connected.

According to the utility model discloses motorcycle of second aspect embodiment, including like the ventilation structure of gear box as the first aspect embodiment, ventilation structure can prevent that muddy water from getting into the gear box from the breather pipe, has eliminated the hidden danger that the machine oil in the gear box was sucked again.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a vent structure according to some embodiments of the first aspect of the present invention;

fig. 2 is a front view of a vent structure according to some embodiments of the first aspect of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a left side view of a vent structure according to some embodiments of the first aspect of the present invention;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

fig. 6 is a schematic diagram of the vent structure removing cover plate according to some embodiments of the first aspect of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or state relationship referred to in the orientation description, such as the directions of up, down, front, back, left, right, etc., is the orientation or state relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 5, some embodiments of the first aspect of the present invention provide a ventilation structure of a gearbox 100, including: the gearbox 100 and the ventilation box 300 fixed on the outer side surface of the air filter 200, the ventilation box 300 can be an independent component, or the ventilation box 300 can be integrally formed on the outer side surface of the air filter 200, the gearbox 100 is provided with a ventilation pipe 110 for communicating with the outside, the ventilation box 300 is connected with a cover plate 400, a blind cavity 310 is formed between the ventilation box 300 and the cover plate 400, the upper end of the ventilation box 300 is provided with a nozzle 330 for communicating with the blind cavity 310, the end part of the ventilation pipe 100 is connected with the nozzle 330, the lower end of the ventilation box 300 is provided with a ventilation port 320 for communicating with the blind cavity 310, a ventilation channel is formed from the ventilation port 320, the blind cavity 310, the nozzle 330 to the ventilation pipe 100, and the purpose of ventilation inside the gearbox 100 is achieved. In order to prevent dust and water in the outside air from entering the gearbox 100, the cover plate 400 is provided with a first baffle 340 close to the air vent 320, the first baffle 340 is positioned below the nozzle 330, gaps are formed between two ends of the first baffle 340 and the side wall of the blind cavity 310, the air entering from the air vent 320 is blocked by the first baffle 340 to form a rotary air flow, the air vent 320 is positioned at the lower end of the blind cavity 310, so that the dust and water in the air flow fall from the air vent 320 due to the action of gravity, and other air passes through the gaps at two sides of the first baffle 340 to enter the blind cavity 310, so that the purposes of dust removal and water removal are achieved; in addition, the blind cavity 310 is arranged outside the air filter 200, and the blind cavity 310 is not communicated with the inner cavity of the air filter 200, so that compared with the mode that the vent pipe 110 is communicated with the inside of the air filter in the prior art, the hidden trouble that the engine oil in the gearbox 100 is sucked out of the air filter 200 is eliminated, the engine oil of the gearbox 100 is prevented from being consumed too fast, and the stable operation of the gearbox 100 is ensured.

Referring to fig. 2 and 4, according to some embodiments of the first aspect of the present invention, the air filter 200 is located above the gear box 100, and the ventilation box 300 is located on the outer side of the air filter 200 facing the gear box 100, i.e. the ventilation port 320 of the ventilation box 300 is located between the air filter 200 and the gear box 100, so that muddy water brought up by the motorcycle during driving can be blocked by the gear box 100 and the air filter 200, and the probability of the muddy water entering the ventilation port 320 is reduced.

Referring to fig. 5 and 6, according to some embodiments of the first aspect of the present invention, the left sidewall of the venting box 300 where the nozzle 330 is disposed is arranged obliquely, and the vent 320 is located at the right side of the lower end of the left sidewall. The left side wall of the ventilation box 300 can block muddy water brought up by the rear wheel, and the inclined left side wall is favorable for the muddy water to flow down, so that the probability of water entering the air vent 320 is reduced.

Referring to fig. 5, according to some embodiments of the first aspect of the present invention, the lower end of the left side wall is provided with a second baffle 350 facing downward, and the second baffle 350 can further block the muddy water brought up by the rear wheel, and is beneficial for the muddy water to flow down, reducing the probability of water entering the vent 320.

Referring to fig. 5, according to some embodiments of the first aspect of the present invention, the right side wall of the venting box 300 is obliquely arranged, and the vent 320 is located between the right side wall and the left side wall. The sloped right side wall helps to block mud water that runs down the surface of the air filter 200 and helps the mud water to run off quickly, reducing the chance of mud water entering the air vents 320.

Referring to fig. 5 and 6, according to some embodiments of the first aspect of the present invention, the lower end of the right side wall is provided with a third baffle 360 facing downward, and the third baffle 360 can further block the muddy water flowing down along the surface of the air filter 200, and is favorable for the muddy water to flow away quickly, reducing the probability of water entering the air vent 320.

Referring to fig. 5 and 6, according to some embodiments of the first aspect of the present invention, the venting box 300 is provided with a fourth baffle 370, the fourth baffle 370 is obliquely disposed at the middle of the venting port 320, and the fourth baffle 370 shields a portion of the venting port 320. The fourth baffle 370 can effectively block the splashed water during car washing, block the passage of water into the blind cavity 310, and reduce the probability of water entering the blind cavity 310.

Referring to fig. 5, according to some embodiments of the first aspect of the present invention, the snorkel 100 is sleeved outside the nozzle 330, the snorkel 100 and the nozzle 330 are in interference fit, and the snorkel 100 is assembled to have a stable structure and is reliable and durable.

Referring to fig. 1, according to some embodiments of the first aspect of the present invention, the cover plate 400 is detachably connected to the venting cartridge 300. Through dismantling apron 400, can observe the cleanliness factor in blind chamber 310 and clear up dust debris, keep blind chamber 310 clean, be favorable to reducing the dust and the water that get into breather pipe 110.

According to the utility model discloses motorcycle of second aspect embodiment, including the ventilation structure as gear box 100 of first aspect embodiment, ventilation structure can prevent that muddy water from getting into gear box 100 from breather pipe 100, has eliminated the hidden danger that the machine oil in gear box 100 was sucked again.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of the ordinary skilled person in the art, and all fall into the protection scope of the present invention.

Claims (10)

1. A breather structure for a gear case, comprising:

a gear box provided with a breather pipe;

the ventilation box is fixed on the outer side face of the air filter and is connected with the cover plate, a blind cavity is formed between the ventilation box and the cover plate, a ventilation port communicated with the blind cavity is formed in the lower end of the ventilation box, a nozzle communicated with the blind cavity is formed in the upper end of the ventilation box, the end of the ventilation pipe is connected with the nozzle, a first baffle close to the ventilation port is arranged on the cover plate and located below the nozzle, and gaps are formed between the two ends of the first baffle and the side wall of the blind cavity.

2. The breather structure of a gearbox according to claim 1, wherein the air filter is located above the gearbox, and the breather box is located on an outer side of the air filter facing the gearbox.

3. The ventilation structure of a gearbox according to claim 1, wherein the ventilation box is provided with a left side wall of the nozzle in an inclined arrangement, and the ventilation opening is positioned at the right side of the lower end of the left side wall.

4. A gear box ventilating structure according to claim 3, wherein a lower end of said left side wall is provided with a second baffle plate directed downward.

5. The gear box ventilation structure according to claim 3, wherein the right side wall of the ventilation box is arranged obliquely, and the ventilation port is located between the right side wall and the left side wall.

6. A gearbox ventilation structure as claimed in claim 5, wherein the lower end of said right side wall is provided with a third baffle plate facing downwards.

7. The ventilation structure of a gearbox according to claim 1, wherein said ventilation box is provided with a fourth baffle plate, said fourth baffle plate is located in the middle of said ventilation port, and said fourth baffle plate shields a part of said ventilation port.

8. The gearbox ventilation structure as claimed in claim 1, wherein the ventilation pipe is sleeved outside the nozzle, and the ventilation pipe and the nozzle are in interference fit.

9. The gearbox ventilation structure as claimed in claim 1, wherein the cover plate is detachably connected to the ventilation box.

10. Motorcycle, characterized in that it comprises a ventilation structure of a gearbox according to any one of claims 1 to 9.

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