Air filter assembly capable of automatically discharging dust

Abstract

The utility model relates to an air filter assembly capable of automatically discharging dust. The problems that an existing air filter assembly is low in dust discharging efficiency and short in service life are solved. Comprising a double-filter-element straight-through air filter assembly (1), a first clamp (2), a connecting rubber pipe (3), a second clamp (4), an automatic dust discharging valve (5) and a fixing support (6), the automatic dust discharging valve (5) is connected with the double-filter-element straight-through air filter assembly (1) through the connecting rubber pipe (3), the middle of the automatic dust discharging valve (5) is fixed through the first clamp (2) and the second clamp (4), and a shell of the automatic dust discharging valve (5) is connected through the fixing support (6) and finally fixed to an auxiliary frame. A partition plate is arranged at an air exchange opening in a shell of the automatic dust discharging valve (5) to form two cavities, a one-way valve plate is arranged at the lower end of an air inlet, and a power source is arranged in the air exchange opening. According to the utility model, the filtering efficiency is improved, and dust and impurities are automatically removed.

Description

Technical Field

[0001] The utility model relates to an air filter, in particular to an automatic dust-discharging air filter assembly. Background Art

[0002] The intake system mainly provides clean air for the engine. First, the unclean air enters the air filter from the air filter inlet. Through the action of centrifugal force, large dust particles accounting for 93% of the mass ratio are separated and accumulated at the bottom of the box. They can be discharged regularly through the lower dust discharge valve under the action of gravity, achieving the effect of pre-filtration.

[0003] Dust exhaust valves are mostly made of EPDM materials. During the operation of the engine, under the action of negative pressure, the dust exhaust valve port is in a closed state. When the engine continues to inhale, the inside of the air filter is under a large negative pressure, the dust exhaust valve outlet is in a closed state, and large particles of dust accumulate at the bottom of the air filter. When the engine switches from high load to low load or is shut down, the air pressure inside the air filter is the same as the external atmospheric pressure. Most of the dust is discharged under the action of gravity, but some particles cannot be discharged smoothly and accumulate at the bottom of the air filter. Manual dust removal is required regularly. If dust cannot be removed in time, dust will return to the main filter element, which will reduce the service life of the air filter and the engine in the long run. In addition, EPDM material will age after a long time, and the performance of the dust exhaust valve cannot be guaranteed. Utility Model Content

[0004] This utility model provides an air filter assembly with automatic dust removal, which mainly solves the problems of low dust removal efficiency and short service life caused by the unreasonable design of the dust removal valve of the existing air filter assembly and the degradation of performance after long-term use. It also solves the problem of unclean air, moisture, etc. entering the air filter through the dust outlet of the air filter, causing the air filter to have a reduced service life.

[0005] The utility model is realized by the following technical solutions:

[0006] An automatic dust-discharging air filter assembly comprises a double-filter element direct-through air filter assembly (1), a clamp (2), a connecting hose (3), a clamp (4), an automatic dust-discharging valve (5) and a fixing bracket (6). The automatic dust-discharging valve (5) is connected to the double-filter element direct-through air filter assembly (1) via the connecting hose (3) and fixed in the middle by the clamp (2) and the clamp (4). The housing of the automatic dust-discharging valve (5) is connected via the fixing bracket (6) and finally fixed to an auxiliary frame. A partition is provided at the air exchange port in the housing of the automatic dust-discharging valve (5) to form two cavities. A one-way valve plate is provided at the lower end of the air inlet. A power source is built into the air exchange port.

[0007] The air filter of this utility model is upgraded from an ordinary two-stage filter to a straight-through air filter assembly, which improves the filtration efficiency; at the same time, the ordinary EPDM dust exhaust valve is replaced with a ball valve with a built-in power source, and the automatic dust exhaust valve is connected to the bottom of the air filter through a connecting hose. The air flow is driven by a pump, which ultimately solves the problems of manual dust exhaust and old rubber replacement, and realizes automatic removal of dust and impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is the layout diagram of the air filter for automatic dust removal. DETAILED DESCRIPTION

[0009] The utility model relates to an air filter in which a common dust exhaust valve at the bottom of a straight-through air filter is replaced by an automatic dust exhaust valve device with a built-in power source.

[0010] like Figure 1 As shown, the main structure of the utility model is composed of a double-filter element direct-through air filter assembly (1), a clamp 1 (2), a connecting hose (3), a clamp 2 (4), an automatic dust exhaust valve (5), and a fixed bracket (6). The automatic dust exhaust valve (5) is connected to the double-filter element direct-through air filter assembly (1) through the connecting hose 3, and is fixed in the middle by clamp 1 (2) and clamp 2 (4). The shell of the automatic dust exhaust valve (5) is connected through the fixed bracket (6) and finally fixed to the auxiliary frame, which is convenient for users to operate during maintenance. The working principle of this automatic dust exhaust valve is to set a partition at the air exchange port in the shell to form two cavities, a one-way valve plate at the lower end of the air inlet, and a built-in power source at the air exchange port. The rated working voltage of the motor is: 24V; the working current is ≤0.6A. Under normal conditions, the ball valve is closed; start the motor to rotate in the forward direction, the motor will reduce the speed through 3 sets of gears and rotate at 350rpm / min, driving the one-way valve ball valve to rotate 90°, at which time the valve opens to start dust discharge; after the dust discharge is completed, the motor passes through the time relay, and the motor rotates in the reverse direction, driving the one-way valve ball valve to rotate to the initial zero position, realizing valve closure.

Claims

1. An automatic dust removal air filter assembly, characterized by: The invention comprises a double filter element direct-through air filter assembly (1), a clamp (2), a connecting hose (3), a clamp (4), an automatic dust discharge valve (5) and a fixing bracket (6). The automatic dust discharge valve (5) is connected to the double filter element direct-through air filter assembly (1) through the connecting hose (3) and fixed in the middle by the clamp (2) and the clamp (4). The housing of the automatic dust discharge valve (5) is connected through the fixing bracket (6) and finally fixed on the auxiliary frame. A partition is provided at the air exchange port in the housing of the automatic dust discharge valve (5) to form two cavities. A one-way valve is provided at the lower end of the air inlet. A power source is built into the air exchange port.

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