1. The utility model provides a novel anti-pollution breathing of oil tank device, includes oil tank (1), its characterized in that: an air inlet respirator (2) and an air outlet respirator (3) are arranged on the oil tank (1); an air inlet filter core (6) and an air inlet one-way valve (5) are arranged in the air inlet respirator (2), and the air inlet one-way valve (5) is used for enabling air to enter the oil tank (1) in a one-way mode; an air outlet one-way valve (7) is installed in the air outlet respirator (3), and the air outlet one-way valve (7) is used for discharging air out of the oil tank (1) in one way.

2. A novel pollution-proof breathing device for a fuel tank according to claim 1, wherein: the mounting position of the air inlet respirator (2) is higher than that of the air outlet respirator (3).

3. A novel pollution-proof breathing device for a fuel tank according to claim 2, wherein: a pipeline (10) is fixed on the upper side of the oil tank (1), and the air inlet respirator (2) is connected to the upper end of the pipeline (10).

4. A novel pollution-proof breathing device for a fuel tank according to claim 1, wherein: an inlet of an air outlet one-way valve (7) in the air outlet respirator (3) is fixedly connected with an air outlet pipe (9); the circumferential surface of the lower end of the air outlet pipe (9) is provided with uniformly distributed filter holes (9-1); a plurality of small spring balls (4) are arranged in the air outlet pipe (9), and the small spring balls (4) are connected with the inner wall of the air outlet pipe (9) through springs.

5. A novel pollution-proof breathing device for a fuel tank, according to claim 4, is characterized in that: the spring balls (4) are axially arranged along the air outlet pipe (9).

6. A novel pollution-proof breathing device for a fuel tank, according to claim 4, is characterized in that: the number of the spring small balls (4) is 3.

Background

In the operation process of the loader, in order to keep the internal and external air pressure of the oil tank balanced, the oil tank is communicated with the outside by using the breathing device, when the air pressure in the oil tank is reduced, the external air enters the oil tank, and when the air pressure in the oil tank is increased, the air in the oil tank is discharged to the outside, so that the balance of the air pressure in the oil tank is kept.

In the prior art, a breather with a filter element is mostly installed in an oil tank of a loader, and air flow is ensured by the breather when outside air enters and air inside the oil tank is exhausted. When the loader jolts violently during operation, fluid in the oil tank can produce a large amount of foams, even some devices can accomplish oil-gas separation as far as possible, but gas still can smuggle partial oil droplet secretly and when discharging from this only respirator, can cause certain jam and damage with the filter core, cause and inhale and exhaust air difficulty, simultaneously because the filter core is inoperative, can't guarantee the cleanliness of inhaled air once more, probably lead to impurity in the air to get into inside the oil tank, pollute fluid, cause the influence to the even running of engine.

Disclosure of Invention

In view of the problems of the prior art, the invention aims to provide a novel pollution-proof breathing device for an oil tank.

The invention is realized by the following technical scheme: a novel anti-pollution breathing device of an oil tank comprises the oil tank, wherein an air inlet respirator and an air outlet respirator are mounted on the oil tank; the air inlet respirator is internally provided with an air inlet filter element and an air inlet one-way valve, and the air inlet one-way valve is used for enabling air to enter the oil tank in a one-way mode; the air outlet respirator is internally provided with an air outlet one-way valve which is used for discharging air out of the oil tank in one way.

It further comprises the following steps: the mounting position of the air inlet respirator is higher than that of the air outlet respirator.

The upper side of the oil tank is fixed with a pipeline, and the air inlet respirator is connected to the upper end of the pipeline.

An inlet of an air outlet one-way valve in the air outlet respirator is fixedly connected with an air outlet pipe; the circumferential surface of the lower end of the air outlet pipe is provided with uniformly distributed filter holes; a plurality of spring balls are arranged in the air outlet pipe and connected with the inner wall of the air outlet pipe through springs.

A plurality of the spring balls are arranged along the axial direction of the air outlet pipe.

The spring ball is provided with 3 in total.

Compared with the prior art, the invention has the beneficial effects that:

1. in the prior art, air inlet and outlet of an oil tank pass through a filter element of only one respirator, so that the filter element is blocked and fails. The breather of the oil tank is changed from one breather to two, the breather consists of an air inlet breather and an air outlet breather, and the one-way valves are respectively attached to the breather, the air inlet breather only admits air and does not give out air, the air outlet breather only gives out air and does not admit air, so that the balance of the air pressure in the oil tank is kept, and the service life of the filter element is greatly prolonged;

2. the air inlet respirator is provided with an air inlet filter element, so that the air inlet cleanliness is ensured; the air outlet respirator is not provided with a filter element, so that the air outlet resistance is reduced, the air in the oil tank is easier to discharge, and the oil drops attached to the air can not block the filter element of the air inlet respirator during air outlet;

3. the mounting position of the air inlet respirator is higher than that of the air outlet respirator, so that the air in the oil tank firstly enters a breathing port of the air outlet respirator when air is exhausted, the air is exhausted from the air outlet respirator at the first time, and the oil drops in the air are ensured not to pollute an air inlet filter core of the air inlet respirator;

4. the respirator of giving vent to anger has air current channel and spring bobble incidentally, and air current channel can carry out preliminary oil-gas separation, and the vibration of spring bobble can carry out secondary oil-gas separation, and through gravity and condensation, the oil that flows back to the oil tank with the oil drop in the oil gas gathering, prevents that oil drops from spilling over.

Drawings

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

FIG. 2 is an enlarged view of a portion I of FIG. 1;

FIG. 3 is a schematic view of the gas flow direction of the breathing apparatus of the present invention;

in the figure: 1. the air inlet breather is arranged on the oil tank, 2, 3, 4, 5, 8, 9 and 7; 9-1, filtering holes; 10. a pipeline.

Detailed Description

The following is a specific embodiment of the present invention, which will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 3, a novel anti-pollution breathing device for an oil tank is provided, wherein an air inlet respirator 2 and an air outlet respirator 3 are arranged on the upper side of the oil tank 1. The air intake breather 2 is only used for air intake and completes the air intake filtering function of the oil tank 1. The air outlet respirator 3 only uses air outlet to keep the air pressure in the oil tank balanced. The two respirators respectively complete the air inlet and outlet functions, and simultaneously ensure the cleanliness of the air in the oil liquid, so that the engine can stably run.

The upper side of the oil tank 1 is fixed with a pipeline 10, and the air inlet respirator 2 is connected to the upper end of the pipeline 10, so that the air inlet respirator 2 is higher than the air outlet respirator 3. The air inlet respirator 2 is internally provided with an air inlet filter core 6 and an air inlet one-way valve 5, the air inlet one-way valve 5 ensures that air enters the oil tank 1 in a one-way mode, and air in the oil tank 1 cannot enter the air inlet filter core 6 through the air inlet one-way valve 5, so that the air inlet filter core 6 is protected. In this embodiment, because the respirator 2 mounted position that admits air is higher than respirator 3 of giving vent to anger, guaranteed that the inside air of oil tank first arrives the mouth of breathing of respirator 3 of giving vent to anger when giving vent to anger, simultaneously because the existence of two check valves (admit air check valve 5, the check valve 7 of giving vent to anger) and respirator 3 of giving vent to anger do not have the filter core, respirator 3's of giving vent to anger resistance is little, the inside air of oil tank very first time from respirator 3 discharges of giving vent to anger, guarantee that the attached oil droplet can not pollute the filter core 6 that admits air of respirator 2 when giving vent to anger.

An air outlet one-way valve 7 is installed in the air outlet respirator 3, the air outlet one-way valve 7 ensures that air is discharged out of the oil tank 1 in one way, and external air cannot enter the oil tank 1 through the air outlet one-way valve 7. An air outlet pipe 9 is fixedly connected with the lower inlet of the air outlet one-way valve 7. The circumferential surface of the lower end of the air outlet pipe 9 is provided with uniformly distributed filter holes 9-1, a plurality of spring balls 4 are arranged in the air outlet pipe 9, and the spring balls 4 are connected with the inner wall of the air outlet pipe 9 through springs. The spring balls 4 are evenly distributed along the axial direction of the air outlet pipe 9 by 3. In the embodiment, the lower end of the air outlet pipe 9 is uniformly provided with the filtering holes 9-1, when the internal pressure of the oil tank is gradually increased, oil gas enters the air outlet breather 3 from the filtering holes 9-1 and the air outlet pipe 9, and when oil drops in an atomized state pass through the filtering holes 9-1, the oil drops are attached to the periphery of the filtering holes 9-1 and the nearby surface under the action of gravity and are gathered to return to the oil tank for primary oil-gas separation. The gas that enters into respirator 3 of giving vent to anger from outlet duct 9 can carry out secondary oil-gas separation through spring bobble 4, and spring 8 is equipped with at 4 both ends of spring bobble, and along with oil tank internal pressure crescent, vibration appears and has certain rotation in spring bobble 4, and the oil of atomizing state drips and attaches to spring bobble 4 and follows the vibration, and oil drips under the action of gravity, in the oil tank is got back to in the gathering, accomplishes secondary oil-gas separation, prevents that fluid from spilling over.

The working principle is as follows:

the air inlet respirator 2 integrally comprises an air inlet one-way valve 5 and an air inlet filter element 6, when the air pressure in the oil tank drops, the outside air enters the oil tank, the air is filtered by the air inlet filter element 6 to reach the air inlet precision required by an engine, and then enters the oil tank through the air inlet one-way valve 5, due to the existence of the air inlet one-way valve 5, the air inlet respirator 2 only can allow the air to enter the oil tank, the air is not allowed to be exhausted to the atmosphere through the air inlet filter element 6, and the air inlet filter element 6 is prevented from being polluted, blocked and damaged;

the whole inside of respirator 3 of giving vent to anger includes the check valve 7 and the spring bobble 4 of giving vent to anger, and when the rising of atmospheric pressure in the oil tank, when the air was discharged to the external world in the oil tank, the inside air of oil tank will be mixed with oil and drip, and spring bobble 4 can play the oil-gas separation effect, discharges gas through the check valve 7 of giving vent to anger. Because the air inlet respirator 2 is provided with the air inlet filter element 6, the cleanliness of air sucked by the oil tank can be ensured, the air outlet respirator 3 is not provided with the air outlet filter element any more, thus the air outlet has smaller resistance, and the air inlet filter element 6 for air inlet can not be damaged and blocked even if the oil-gas separation is not thorough. Due to the existence of the air outlet one-way valve 7, the air outlet respirator 3 can not allow outside air to enter from the air outlet respirator 3, so that the cleanliness of air sucked in the oil tank is not influenced even if the air outlet respirator 3 is not provided with a filter element.

Adopt above-mentioned respiratory device, air cleanliness when can guaranteeing the oil tank and admit air, fluid is not inhaled impurity, guarantees the engine operation, can let out gas more smoothly simultaneously, no longer worry give vent to anger in the fluid absorption that mingles with adsorb in the respirator filter core, lead to the difficulty of admitting air, improve filter core life.