CN216643041U

CN216643041U - Gearbox breather

Info

Publication number: CN216643041U
Application number: CN202122984527.0U
Authority: CN
Inventors: 程帅; 袁浩然
Original assignee: Zhejiang Xuanfu Technology Co ltd; Zhejiang Geely Holding Group Co Ltd
Current assignee: Zhejiang Xuanfu Technology Co ltd; Zhejiang Geely Holding Group Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-31
Anticipated expiration: 2031-11-29

Abstract

The utility model provides a gearbox breather, and belongs to the technical field of gearbox parts. It has solved the poor problem of adaptability of current breather pipe. This breather includes breather pipe and the connector in the venthole that can imbed the gearbox, and the connector can be dismantled the one end of connecting at the breather pipe, is equipped with the flexion of U-shaped just on the breather pipe makes its both ends orientation with one side through the bending of flexion. This curved portion that has the U-shaped on the breather pipe, the existence of curved portion makes the orientation of the tip of breather pipe the same, the other end of breather pipe also is vertical down when vertically inserting the breather hole on the gearbox with the connector one end of breather pipe, even if this export one end also directly drips when the condition of the too big production comdenstion water of difference in temperature like this, can not enter into the breather pipe, the problem of the comdenstion water refluence that the breather pipe appears in extreme weather has been solved in the design like this, make this breather pipe's adaptability obtain promotion by a wide margin.

Description

Gearbox breather

Technical Field

The utility model belongs to the technical field of gearbox parts, relates to a breather, and particularly relates to a gearbox breather.

Background

When the gearbox works, the temperature in the gearbox rises to enable the internal pressure to be higher than the outdoor atmospheric pressure to form pressure difference, if the pressure difference is not eliminated, the related external connection sealing element of the gearbox falls off under the action of pressure to cause oil leakage of the gearbox, therefore, the gearbox must be provided with a structural component which performs gas exchange and circulation with the external environment to offset the internal and external pressure difference of the gearbox, and the structural component is commonly called a breather.

The breather pipe is generally composed of a straight long pipe, one end of the long pipe is provided with a connector, and the other end of the long pipe is provided with a plurality of structures capable of blocking dust. The air vent has been seted up at gearbox upper end or top, then insert the connector of breather pipe in the breather hole and with the air vent circumference sealed can, in order to avoid rivers to get into the gearbox from the breather pipe when the vehicle wades, the height that the breather pipe other end is fixed all is higher than the height of air vent, can improve the ability of wading of gearbox like this. However, the structure is easy to generate condensed water due to cold and heat exchange when the breather pipe is far away from the pipe orifice at one end of the gearbox in cold weather, and the condensed water is gathered too much and flows down along the inner wall of the breather pipe to enter the gearbox through the vent hole to cause the deterioration of lubricating oil of the gearbox to occur even more seriously.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a transmission case breather. It is the poor technical problem of adaptability of current breather pipe that it was solved.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a gearbox breather, includes breather pipe and the connector in the venthole that can imbed the gearbox, the one end at the breather pipe can be dismantled to the connector, its characterized in that, be equipped with the flexion of U-shaped just on the breather pipe makes its both ends orientation with one side through the bending of flexion.

This curved portion that has the U-shaped on the breather pipe, the existence of curved portion makes the orientation of the tip of breather pipe the same, the other end of breather pipe also is vertical down when vertically inserting the breather hole on the gearbox with the connector one end of breather pipe, even if this export one end also directly drips when the condition of the too big production comdenstion water of difference in temperature like this, can not flow into in the gearbox along the breather pipe, the problem of the comdenstion water refluence that the breather pipe appears in extreme weather has been solved in the design like this, make this breather pipe's adaptability obtain promotion by a wide margin.

In the above transmission case breather, an extension portion is provided at an end portion of the other end of the breather pipe.

The length of extension to the breather pipe one end of giving vent to anger has carried out the extension, thereby in the flexion that U type was crossed to the water droplet that can effectually prevent to splash when meetting rainy day or rivers splash enters into the breather hole, is difficult to have the water droplet to get into the gearbox along the breather pipe in for this breather pipe can adapt to various extreme road conditions, and the adaptability obtains further promotion.

The extension is long, and the dust can fall again from the outlet of the extension along with the self gravity after being sucked into the extension, and the existence of the extension can also play a certain blocking role for some dust with heavier mass.

In the above-mentioned transmission case breather, the extension has at least one elbow, and the end of the extension faces the same direction as the end of the breather pipe.

The extension part is not linear, one or more bends can be arranged on the extension part, the bend is designed to enable the bend in the extension part to be bent and bent, so that dust and water splash can be easily hit on the pipeline wall in the extension part and slide out of the extension part along with the gravity of the extension part, the dust and water splash can be well blocked, and the adaptability of the ventilation pipe is further improved.

In the above gearbox breather, the breather pipe is integrally formed by hard plastics.

In foretell gearbox breather, the one end of connector has socket joint portion, evenly distributed has a plurality of annular protrudingly on the outer peripheral face of socket joint portion, the connector stretches into in the tip of breather pipe and the protruding inner wall tight fit with the breather pipe of annular through socket joint portion.

The connector is fixed with the breather pipe through the socket joint portion grafting, and the close fit is fixed in the tip that the socket joint portion inserted the breather pipe, because the breather pipe adopts plastics material to make easy damage, so design easy to assemble and dismantle the breather pipe like this.

In one of the above mentioned gearbox breather, the annular protrusion has an inclined guide surface thereon.

Because the socket part and the vent pipe are not well inserted into the vent pipe in a tight fit and fixed mode, the design of the guide surface can be easily inserted into the vent pipe when moving along the guide surface, and the installation is convenient.

In the gearbox breather, a plurality of clamping jaws are circumferentially distributed on the end part of the other end of the connector, and all the clamping jaws are made of elastic materials and can radially contract.

This ventilation pipe adopts elastic jack catch card to establish and fixes in the venthole of gearbox, and the jack catch surrounds the round and can be through the shrink of incurving circumference, thereby can keep the trend card of outside expansion to establish in the venthole after stretching into the jack catch in stretching into the venthole, design ten fens easy to assemble like this.

Compared with the prior art, the product has the advantages that:

1. this breather pipe's both ends orientation is same one side, and the comdenstion water also directly has dripped when the export one end at the breather pipe because the too big production comdenstion water of difference in temperature, can not enter into the breather pipe, and the problem of the comdenstion water refluence that the breather pipe appears in extreme weather has been solved in the design like this for this breather pipe's adaptability obtains promotion by a wide margin.

2. The channel in which the extension part is obliquely arranged also has a curved channel which is not linear, wind dust can hit the pipe wall after being sucked, and then fall again from the outlet of the extension part along with the self gravity, and the existence of the extension part can also play a certain role in blocking certain dust with heavier mass.

3. The elbow on the extension part is designed to enable the curve in the extension part to be meandered, so that dust and water splash are easy to strike on the pipeline wall in the extension part and slide out of the extension part along with the action of self gravity, a good dust and water splash blocking effect is achieved, and the adaptability of the ventilation pipe is further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a detail view of the connector of the present invention.

In the figure, 1, a breather pipe; 11. a bending section; 12. an extension; 121. bending the pipe; 2. a connector; 21. a socket part; 22. a claw; 23. an annular projection; 231. a guide surface.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the transmission case breather comprises a breather pipe 1 and a connector 2 capable of being embedded into a breather hole of a transmission case, wherein the connector 2 is inserted into the lower end of the breather pipe 1, a U-shaped bent portion 11 is arranged on the breather pipe 1, and the upper end of the breather pipe 1 faces downwards under the bending of the U-shaped bent portion 11. The existence of flexion 11 makes the orientation of the tip of breather pipe 1 the same, breather pipe 1's the other end also is vertical decurrent when in the breather hole on the gearbox with the vertical insertion of 2 one ends of connector of breather pipe 1, even this export one end also directly drops when the condition of the too big production comdenstion water of difference in temperature like this, can not enter into breather pipe 1, the problem of the comdenstion water refluence that breather pipe 1 appears in extreme weather has been solved in the design like this, make this breather pipe 1's adaptability obtain promotion by a wide margin.

The ventilation pipe 1 is integrally formed with an extension 12 on the upper end of the ventilation pipe 1 by hard plastic. The design of extension 12 has been carried out the extension to the length of the one end of giving vent to anger of breather pipe 1, thereby can effectually prevent when running into rainy day or rivers splash that the water droplet that splashes crosses the flexion 11 of U type and enter into the breather hole, can let the pipeline in it form the pattern of elbow 121 like this, be difficult to have the water droplet more and get into the gearbox along breather pipe 1 in for this breather pipe 1 can adapt to various extreme road conditions, and adaptability obtains further promotion. The passage in the extension 12 is not straight, and the dust will hit the wall of the pipe after being sucked in, and then fall again from the outlet of the extension 12 with its own weight, and the presence of the extension 12 can also play a certain role in blocking some heavy dust.

The extension 12 has an elbow 121 and the end of the extension 12 is oriented in the same direction as the end of the snorkel 1. The extension 12 is tilted and the orientation of the end of the extension 12 is corrected back downward by the elbow 121 to be uniform with the other end. The extension 12 is not linear and may have one or more bends 121 formed thereon, and the bends 121 are designed to make the bend in the extension 12 meander so that dust and splash can easily hit the wall of the conduit in the extension 12 and slide out of the extension 12 under its own weight, and have a better dust and splash-blocking effect, so that the flexibility of the ventilation tube 1 is further improved.

One end of the connecting head 2 is provided with a socket part 21, and the socket part 21 is slightly inclined towards one side, so that the butt joint with the vent hole of the gearbox can be better adapted. A plurality of annular bulges 23 are uniformly distributed on the peripheral surface of the socket part 21, inclined guide surfaces 231 are arranged on the annular bulges 23, the connector 2 extends into the end part of the vent pipe 1 through the socket part 21, and the annular bulges 23 are tightly matched with the inner wall of the vent pipe 1. The connector 2 is fixedly connected with the vent pipe 1 through the socket part 21 in an inserting mode, the socket part 21 is inserted into the end part of the vent pipe 1 and is fixed in a close fit mode, and the vent pipe 1 is made of plastic materials and is easy to damage, so that the vent pipe 1 is convenient to design, install and disassemble. Because the socket part 21 and the vent pipe 1 are tightly fitted and fixed and are not easily inserted into the vent pipe 1, the guide surface 231 is easily inserted into the vent pipe 1 when moving along the guide surface 231, and the installation is convenient. A plurality of clamping jaws 22 are circumferentially distributed on the end part of the other end of the connector 2, and all the clamping jaws 22 are made of elastic materials and can radially contract. This breather pipe 1 adopts elastic jack catch 22 card to establish and fixes in the venthole of gearbox, and jack catch 22 surrounds the round and can be through inside bend circumference shrink, thereby can keep the trend card of outside expansion to establish in the venthole after stretching into jack catch 22 in stretching into the venthole, design ten fens easy to assemble like this.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides a gearbox breather, includes connector (2) in breather pipe (1) and the venthole that can imbed the gearbox, connector (2) can be dismantled the one end of connection in breather pipe (1), its characterized in that, be equipped with flexion (11) of U-shaped just on breather pipe (1) makes its both ends orientation same one side through the bending of flexion (11).

2. A gearbox breather according to claim 1, wherein the breather pipe (1) is provided with an extension (12) at the end of the other end.

3. A gearbox breather according to claim 2, wherein the extension (12) has at least one bend (121) and the end of the extension (12) is oriented in the same direction as the end of the breather pipe (1).

4. A gearbox breather according to claim 3, wherein the breather pipe (1) is integrally formed of rigid plastic.

5. The gearbox breather according to any one of claims 1 to 4, wherein one end of the connector (2) is provided with a socket part (21), a plurality of annular bulges (23) are uniformly distributed on the outer peripheral surface of the socket part (21), the connector (2) extends into the end part of the breather pipe (1) through the socket part (21), and the annular bulges (23) are tightly matched with the inner wall of the breather pipe (1).

6. A gearbox breather according to claim 5, in which the annular protrusion (23) has an inclined guide surface (231) thereon.

7. The gearbox breather according to claim 6, wherein a plurality of jaws (22) are circumferentially distributed on the end portion of the other end of the connecting head (2), and all the jaws (22) are made of elastic materials and can radially contract.