Water blocking breather box and gearbox
A transmission and ventilation technology, applied in belts/chains/gears, transmission parts, mechanical equipment, etc., can solve problems such as water ingress and poor waterproof performance
Active Publication Date: 2021-03-30
ANHUI XINGRUI GEAR TRANSMISSION
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Problems solved by technology
[0004] The invention discloses a water-blocking ventilation box and a gearbox, aiming to solve the problem that in the prior art, the waterproof performance of the ventilation valve structure of the gearbox is poor. water problem
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0032] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0033] In addition, if there are descriptions involving "first", "second" and ...
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The invention discloses a water preventing ventilation box. The water preventing ventilation box comprises a ventilation box body, a positive pressure gas regulating mechanism and a negative pressuregas regulating mechanism. The ventilation box body forms a gas regulating cavity, a positive pressure gas path, a negative pressure gas path, a box body gas path, an air communicating opening communicating with the gas regulating cavity and the air, a positive pressure gas opening communicating with the gas regulating cavity and the positive pressure gas path and a negative pressure gas opening communicating with the gas regulating cavity and the negative pressure gas path. The positive pressure gas path and the negative pressure gas path both communicate with the box body gas path. The box body gas path communicates with a gearbox body. The positive pressure gas regulating mechanism is arranged in the gas regulating cavity and further matched with the positive pressure gas opening and theair communicating opening. The negative pressure gas regulating mechanism is arranged in the gas regulating cavity and is further matched with the negative pressure gas opening and the positive pressure gas regulating mechanism. According to the water preventing ventilation box provided by the invention, the problems that the water resistance of a gearbox vent valve structure is poor, and an upper-end vent cap can be jacked up so that water can enter when uprushing-type rain wash happens in the prior art are solved.
Description
technical field [0001] The invention relates to the technical field of gearboxes, in particular to a water blocking ventilation box and a gearbox. Background technique [0002] The gearbox is one of the three major parts of the car and is a very important part of the vehicle. It can change the transmission ratio and play a role in expanding the torque and speed of the driving wheels. In the operation of car driving, there are some precautions, one of which is that it is strictly forbidden to drive in deep water. Because the gearbox has a vent hole, and the position of the vent hole is only slightly higher than the center line of the tire. If too much water enters, it will cause serious damage to the gearbox. The water in the gearbox mainly enters from the vent hole, because the gearbox is not completely closed, and the water itself may directly enter from the vent hole, and if the gearbox is cooled by water during operation, and the water level is high At the same time, it...
Claims
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IPC IPC(8): F16H57/027F16H57/029
CPCF16H57/027F16H57/029
Inventor 王文浩张亚楠胡禅郭应清王铜奎
Owner ANHUI XINGRUI GEAR TRANSMISSION