CN214367647U - Ventilation structure of gear box and motorcycle - Google Patents

Abstract

The utility model discloses a ventilation structure and motorcycle of gear box, include: a gear box provided with a breather pipe; the ventilation box is fixed at the lateral surface of air filter, and the ventilation box is connected with the apron, is formed with the blind chamber between ventilation box and the apron, and the right-hand member of ventilation box is provided with the blow vent in the blind chamber of intercommunication, and the left end of ventilation box is provided with the mouthpiece in the blind chamber of intercommunication, and the tip connection mouthpiece of breather pipe, the ventilation box are provided with the first baffle that is located the blind chamber, and the upper end of first baffle is connected in the top inner wall in blind chamber, forms the gap between the lower extreme of first baffle and the bottom inner wall in blind chamber. Arrange first baffle in the blind chamber, the air that gets into the blind chamber from the blow vent must bypass first baffle, passes through from the gap of first baffle downside, utilizes first baffle to block dust and water in the air and gets into the gear box through the blow vent, 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 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 surface 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 right end of the ventilation box, a nozzle communicated with the blind cavity is formed in the left end of the ventilation box, the end of the ventilation pipe is connected with the nozzle, the ventilation box is provided with a first baffle located in the blind cavity, the upper end of the first baffle is connected to the inner wall of the top of the blind cavity, and a gap is formed between the lower end of the first baffle and the inner wall of the bottom 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 passes through the blind chamber of mouthpiece intercommunication, arranges first baffle in the blind chamber, and the air that gets into the blind chamber from the blow vent must bypass first baffle, passes through from the gap of first baffle downside, utilizes first baffle to block dust and water in the air and gets into the gear box through the breather pipe, and the blind chamber is independent each other 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 towards the underside of the gear box.

According to some embodiments of the first aspect of the present invention, the vent box is arranged to be inclined, and the left end of the vent box is higher than the right end of the vent box.

According to some embodiments of the first aspect of the present invention, the air filter is provided with a recessed area, and the ventilation box is located in the recessed area.

According to some embodiments of the first aspect of the present invention, the air filter is provided with an edge panel located on the right side of the venting box, the vent having a gap with the edge panel.

According to some embodiments of the first aspect of the present invention, the bottom inner wall of the blind cavity is arranged as a plane, and the bottom inner wall of the blind cavity is higher than the right end for the left end.

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 some embodiments of the first aspect of the present invention, the cover plate is provided with a sealing skirt surrounding the blind cavity, and the venting box is provided with a sealing groove cooperating with the sealing skirt.

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 an exploded schematic view of a vent structure according to some embodiments of the first aspect of the present invention;

fig. 3 is a partially enlarged view of fig. 2.

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.

With reference to fig. 1 and 3, some embodiments of the first aspect of the present invention provide a ventilation structure of a gear box, including: the gearbox 100 and fix the box 300 of ventilating at the outside of air cleaner 200, the box 300 of ventilating can be solitary part, it can also be that the box 300 of ventilating is integrated into one piece at the outside of air cleaner 200, the gearbox 100 is provided with breather pipe 110 for the intercommunication external world, the box 300 of ventilating is connected with apron 400, be formed with blind chamber 310 between box 300 of ventilating and the apron 400, the left end of the box 300 of ventilating is provided with the nozzle 330 that communicates blind chamber 310, the tip of breather pipe 110 connects nozzle 330, the right-hand member of the box 300 of ventilating is provided with the vent 320 that communicates blind chamber 310, from vent 320, blind chamber 310, nozzle 330 to breather pipe 110 constitution ventilation passageway, reach the purpose of the inside ventilation of gearbox 100. In order to prevent dust and water in the outside air from entering the gearbox 100, the ventilation box 300 is provided with a first baffle 340 positioned in the blind cavity 310, the first baffle 340 is vertical, the first baffle 340 extends downwards from the inner wall of the top of the blind cavity 310, a gap is formed between the lower end of the first baffle 340 and the inner wall of the bottom of the blind cavity 310, the first baffle 340 is close to the nozzle 330, the air entering from the air vent 320 is blocked by the first baffle 340 to form a rotary air flow, so that the dust and the water in the air flow fall off due to the action of gravity, and other air passes through the gap to enter the ventilation pipe 110 and the gearbox 100, thereby achieving the purposes of dust removal and water removal; 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 of communicating 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. 1, 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 lower 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 the gear box 100 and the air filter 200 can be used to block muddy water brought up by the traveling of the motorcycle, and the probability of the muddy water entering the ventilation port 320 is reduced.

Referring to fig. 3, according to some embodiments of the first aspect of the present invention, the venting box 300 is arranged in an inclined manner, and the left end of the nozzle 330 is higher than the right end of the vent 320, so as to promote the dust and water to fall down by using the height difference, thereby reducing the probability of the dust and water entering the gear box 100 through the nozzle 330.

Referring to fig. 3, according to some embodiments of the first aspect of the present invention, the bottom inner wall of the venting box 300 is a plane arranged obliquely, and the left end of the nozzle 330 is higher than the right end of the venting hole 320. Water is facilitated to flow away along the bottom inner wall of breather box 300, reducing the chance of water entering gearbox 100.

Referring to fig. 1, according to some embodiments of the first aspect of the present invention, the air filter 200 is provided with a recessed area, the ventilation box 300 is located in the recessed area, and the cover plate 400 is substantially flush with the surface of the air filter 200 after being installed, so as to reduce the probability that the ventilation box 300 and the cover plate 400 are collided, and be more reliable and durable.

Referring to fig. 2 and 3, according to some embodiments of the first aspect of the present invention, the air filter 200 is provided with an edge panel 210 located at the right side of the vent box 300, the edge panel 210 being located in front of the vent 320 with a gap between the vent 320 and the edge panel 210 in the driving direction of the motorcycle. On one hand, the side panel 210 can be used for shielding the air vent 320, so that the pressure of the direct wind blowing to the air vent 320 during driving is reduced, the direct dust entering the blind cavity 310 is reduced, and rainwater and sediment are prevented from being blown into the pipeline 110 and even the gearbox 100; on the other hand, the edge panel 210 helps the water from the car wash to flow away quickly, reducing the chance of water entering the blind cavity 310.

Referring to fig. 1, according to some embodiments of the first aspect of the present invention, the vent pipe 110 is sleeved outside the nozzle 330, the vent pipe 110 and the nozzle 330 are in interference fit, and the structure is stable, reliable and durable after the vent pipe 110 is assembled.

Referring to fig. 2, 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.

Referring to fig. 2, according to some embodiments of the first aspect of the present invention, the cover plate 400 is provided with a sealing surrounding edge (not shown in the figure) surrounding the blind cavity 310, the ventilation box 300 is provided with a sealing groove 350 matching the sealing surrounding edge, the sealing surrounding edge is inserted into the sealing groove 350, the cover plate 400 and the ventilation box 300 are fixedly connected and sealed, and water is prevented from permeating from the joint of the cover plate 400 and the ventilation box 300.

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 110, 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 surface 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 right end of the ventilation box, a nozzle communicated with the blind cavity is formed in the left end of the ventilation box, the end of the ventilation pipe is connected with the nozzle, the ventilation box is provided with a first baffle located in the blind cavity, the upper end of the first baffle is connected to the inner wall of the top of the blind cavity, and a gap is formed between the lower end of the first baffle and the inner wall of the bottom of the blind cavity.

2. A gearbox ventilation arrangement as claimed in claim 1, wherein said air filter is located above said gearbox and said ventilation box is located on the underside of said air filter facing said gearbox.

3. The ventilation structure of a gearbox according to claim 2, wherein the ventilation box is arranged obliquely, and the left end of the ventilation box is higher than the right end of the ventilation box.

4. A gearbox ventilation arrangement as claimed in claim 3, wherein said air filter is provided with a recessed region, said ventilation box being located in said recessed region.

5. A gearbox ventilation structure as claimed in claim 4, wherein said air filter is provided with a side panel located at the right side of said ventilation box, and said ventilation opening and said side panel have a gap therebetween.

6. A gearbox ventilation structure as claimed in claim 3, wherein the bottom internal wall of said blind cavity is arranged in a plane, and the left end of said bottom internal wall of said blind cavity is higher than the right end.

7. 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.

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

9. A gearbox ventilation structure as defined in claim 8, wherein said cover plate is provided with a sealing skirt surrounding said blind cavity, and said ventilation box is provided with a sealing groove engaging said sealing skirt.

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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