Air inlet system negative pressure dust removal function anti-back-blowing structure and vehicle

Abstract

The utility model discloses an air inlet system negative pressure dedusting function anti-back-blowing structure and a vehicle in the field of dedusting of air inlet systems, which comprises a dedusting pipe and a one-way valve, one end of the dedusting pipe is mounted on an air filter of an air inlet system, and the other end of the dedusting pipe is connected with a negative pressure dedusting box through the one-way valve. The negative pressure dust removal box is arranged on the radiator, and negative pressure is provided for the negative pressure dust removal box and the dust removal pipe through the radiator; and the air flow passing through the one-way valve can only flow to the negative pressure dust removal box from the direction of the air filter. The dust removal pipe provides negative pressure to act in the air filter through the radiator, dust in the air filter is ejected and sucked out, the service life of the air filter is prolonged, and the dust is prevented from reversely entering to affect the function of an air inlet system through the arranged one-way valve. The reversing device is simple in structure and small in occupied space, and the maintenance time of the reversing fan and the air filter is shortened.

Description

Technical Field

[0001] This utility model relates to the field of dust removal in air intake systems, and in particular to a negative pressure dust removal function anti-backflush structure for air intake systems and a vehicle thereof. Background Technology

[0002] The air intake system is an indispensable system in a tractor, providing clean air to the engine during starting, various movements, and operations. The dry air filter in the tractor's air intake system centrifugally ejects dust from the air, using the fan's airflow to apply negative pressure to the negative pressure dust removal pipe in the intake system, thus expelling the dust. With the continuous upgrading of tractor functions and increasing market demands, the configuration of reversing fans in tractor engines is gradually increasing. However, when the reversing fan's reverse-blowing function is used, the negative pressure in the negative pressure dust removal pipe of the air intake system becomes positive pressure during fan reverse-blowing, blowing the centrifuged dust from the air filter back into the air filter. This affects the air filter's function and the filter element's maintenance cycle. Therefore, the anti-backflush structure for the negative pressure dust removal function of the tractor's air intake system has become a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] The purpose of this utility model is to provide an anti-backflush structure and vehicle for the negative pressure dust removal function of the intake system. The structure is simple, and by setting a one-way valve, it prevents dust in the negative pressure dust removal box from entering the intake system and affecting the engine performance.

[0004] To solve the above technical problems, the following technical solution is adopted:

[0005] In a first aspect, this utility model provides a backflush prevention structure for negative pressure dust removal function in an air intake system, including a dust removal pipe connected to the air intake system and a one-way valve installed on the dust removal pipe. One end of the dust removal pipe is installed on the air filter of the air intake system, and the other end is connected to a negative pressure dust removal box through the one-way valve. The negative pressure dust removal box is installed on a radiator, and negative pressure is provided to the negative pressure dust removal box and the dust removal pipe through the radiator.

[0006] The airflow passing through the one-way valve can only flow from the air filter direction to the negative pressure dust collection box.

[0007] Optionally, the intake system also includes an intake pipe, with one end of the air filter connected to the intake pipe and the other end connected to the engine.

[0008] Optionally, the dust removal pipe is installed on the side of the air filter and communicates with the interior of the air filter.

[0009] Optionally, the dust removal pipe is mounted on the air filter via a 90-degree adapter.

[0010] Optionally, the one-way valve is connected to the inlet of the negative pressure dust collector via a hose.

[0011] Optionally, the hose is made of EPDM material with a wall thickness of 5mm.

[0012] Optionally, the radiator is equipped with a reversing fan, which cools the engine when rotating in the forward direction and removes debris from the radiator when rotating in the reverse direction.

[0013] Secondly, this utility model provides a vehicle including the anti-backflush structure with negative pressure dust removal function of the intake system as described in any one of the first aspects.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0015] This invention connects an external dust collection pipe to the intake system. The pipe provides negative pressure through the radiator, which draws dust out of the air filter, effectively removing dust and extending its lifespan. A one-way valve prevents dust from the negative pressure dust collection box from flowing back into the air filter, thus avoiding interference with the intake system's function. This invention features a simple structure, small footprint, reduced maintenance time for the commutator fan and air filter, ensures smooth engine intake, and prevents dust from entering the engine through the intake air. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the anti-backflush structure of the negative pressure dust removal function of the air intake system in this utility model;

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Air filter; 2. Air intake pipe; 3. 90-degree adapter; 4. Dust collection pipe; 5. One-way valve; 6. Rubber hose; 7. Negative pressure dust collection box; 8. Reversing fan. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1

[0022] This embodiment provides a backflush prevention structure for negative pressure dust removal function in an air intake system, including a dust removal pipe 4 connected to the upper part of the air intake system and a one-way valve 5 installed on the dust removal pipe 4. One end of the dust removal pipe 4 is installed on the air filter 1 of the air intake system, and the other end is connected to a negative pressure dust removal box 7 through the one-way valve 5. The negative pressure dust removal box 7 is installed on a radiator, and negative pressure is provided to the negative pressure dust removal box 7 and the dust removal pipe 4 through the radiator.

[0023] The airflow passing through the one-way valve 5 can only flow from the air filter 1 to the negative pressure dust collector 7, and cannot flow in the opposite direction to prevent dust in the negative pressure dust collector 7 from entering the air filter 1 in reverse.

[0024] The negative pressure dust collection box 7 is located on the negative pressure side when the radiator is working. The negative pressure passes through the negative pressure dust collection box 7, then through the dust collection pipe 4, and acts on the inside of the air filter 1. The negative pressure draws out the dust filtered by the air filter 1 into the negative pressure dust collection box 7.

[0025] The radiator can also work in reverse to remove debris. When the radiator works in reverse, it provides positive pressure airflow into the negative pressure dust collector 7. Due to the action of the one-way valve 5, the airflow cannot pass through the one-way valve 5, thereby preventing dust in the negative pressure dust collector 7 from entering the air filter 1 in reverse when the radiator works in reverse, and preventing dust from entering the engine in reverse and affecting its performance.

[0026] The negative pressure dust removal function of the intake system provided in this embodiment has a simple anti-backflush structure, occupies little space, cleans the air filter 1, improves the service life of the air filter 1, reduces the maintenance time and cost of the filter and radiator, and ensures smooth engine intake.

[0027] Example 2

[0028] This embodiment provides a negative pressure dust removal and anti-backflush structure for an air intake system. The air intake system also includes an intake pipe 2. One end of an air filter 1 is connected to the intake pipe 2, and the other end is connected to the engine. Air enters the air filter 1 from the intake pipe 2 for cleaning, and the cleaned air is then used in the engine. A dust removal pipe 4 is installed on the side of the air filter 1, and the dust removal pipe 4 communicates with the interior of the air filter 1. During the cleaning process of the air filter 1, negative pressure from the other end of the dust removal pipe 4 acts on the air filter 1, drawing the dust separated from the air inside the air filter 1 into the negative pressure dust removal box 7.

[0029] The radiator is equipped with a reversing fan 8, which blows air onto the engine's outer surface for cooling. A negative pressure dust collector 7 is located on the negative pressure side of the reversing fan 8. When the reversing fan 8 blows air towards the engine, the negative pressure generated on the negative pressure side acts on the air filter 1 through the dust collection pipe 4, drawing dust from inside the air filter 1 into the negative pressure dust collector 7. While the reversing fan 8 is cooling the engine, weeds and dust outside the radiator will adhere to it. Excessive accumulation can clog the radiator's vents, increasing the resistance of the reversing fan 8. By reversing the operation of the reversing fan 8, weeds and dust on the radiator are removed. During this reversal, the negative pressure dust collector 7 is located on the positive pressure side of the reversing fan 8. A one-way valve 5 prevents dust from entering the air filter 1 due to the positive pressure airflow within the negative pressure dust collector 7.

[0030] The dust collection pipe 4 is installed on the side of the air filter 1 near the engine connection via a 90-degree deflector joint, and is arranged towards the intake pipe 2. The one-way valve 5 is connected to the negative pressure dust collection box 7 via a hose 6. The hose 6 has a thick wall and supports the one-way valve 5 (5mm thick EPDM hose), thus fixing and supporting the one-way valve 5 and ensuring the operation of the negative pressure dust collection function. The dust collection pipe 4, one-way valve 5, hose 6, and negative pressure dust collection box 7 are arranged closely together to reduce their space occupation.

[0031] During installation, install the air intake system, and then install a 90-degree adapter 3 at one end of the dust removal pipe 4, while ensuring the rotation angle is properly controlled to guarantee smooth flow of the 90-degree adapter, dust removal pipe 4, one-way valve 5, hose 6, and negative pressure dust removal box 7. Ensure the dust removal pipe 4 is installed smoothly. When installing the one-way valve 5, confirm its orientation and ensure its central axis is parallel to the ground to enable the entire negative pressure dust removal system to prevent backflow of dust. Connect the hose 6 to the negative pressure dust removal box 7 fixed to the radiator, ensuring the distance between the negative pressure dust removal box 7 and the reversing fan 8 to guarantee the negative pressure suction of the system.

[0032] This embodiment provides a negative pressure dust removal function with an anti-backflush structure. It can ensure that under normal vehicle operating conditions, the negative pressure dust removal system can draw out the dust from the air filter 1 by the negative pressure brought by the reversing fan 8. At the same time, when the reversing fan 8 is reversing, the angle is constrained by the one-way valve 5. At this time, the negative pressure dust removal pipe 4 is filled with positive pressure airflow. The one-way valve 5 will close the entire pipe under the positive pressure airflow to prevent dust in the air from being blown back into the air filter 1, thereby affecting the intake function of the intake system. The negative pressure dust removal system, composed of a 90-degree adapter 3, a negative pressure dust removal pipe 4, a one-way valve 5, a hose 6, and a negative pressure dust removal box 7, has a harmonious and reasonable design, occupies little space, and has a stable fixing method. This reduces the maintenance time of the reversing fan 8 and the air filter 1, ensures smooth engine intake, and prevents dust from entering the engine through the intake system. The anti-backflush structure of the negative pressure dust removal system uses several simple components connected together, ensuring functional stability without adding excessive costs. The fixing and layout of this structure is simple and convenient, and can be used in conjunction with other vehicle models. This negative pressure dust removal anti-backflush function of the intake system can meet the usage conditions of different operating conditions, and is convenient and efficient.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A backflush prevention structure for negative pressure dust removal function in an air intake system, characterized in that, It includes an external dust removal pipe connected to the intake system and a one-way valve installed on the dust removal pipe. One end of the dust removal pipe is installed on the air filter of the intake system, and the other end is connected to a negative pressure dust removal box through the one-way valve. The negative pressure dust removal box is installed on the radiator, and negative pressure is provided to the negative pressure dust removal box and the dust removal pipe through the radiator. The airflow passing through the one-way valve can only flow from the air filter direction to the negative pressure dust collection box.

2. The anti-backflush structure for negative pressure dust removal function of the air intake system according to claim 1, characterized in that, The intake system also includes an intake pipe, with one end of the air filter connected to the intake pipe and the other end connected to the engine.

3. The anti-backflush structure for negative pressure dust removal function of the air intake system according to claim 2, characterized in that, The dust removal pipe is installed on the side of the air filter and communicates with the interior of the air filter.

4. The anti-backflush structure for negative pressure dust removal function of the air intake system according to claim 1, characterized in that, The dust removal pipe is installed on the air filter via a 90-degree adapter.

5. The anti-backflush structure for negative pressure dust removal function of the air intake system according to claim 1, characterized in that, The one-way valve is connected to the inlet of the negative pressure dust collector via a hose.

6. The anti-backflush structure for negative pressure dust removal function of the air intake system according to claim 5, characterized in that, The hose is made of 5mm thick EPDM material.

7. The anti-backflush structure for negative pressure dust removal function of the air intake system according to claim 1, characterized in that, The radiator is equipped with a reversing fan. When the reversing fan is in the forward direction, it cools the engine, and when it is in the reverse direction, it removes debris from the radiator.

8. A vehicle comprising the anti-backflush structure with negative pressure dust removal function of the intake system as described in any one of claims 1-7.

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