Air door mechanism

Abstract

The utility model belongs to the technical field of coal mine safety ventilation, and discloses an air door mechanism which comprises a main body device used for controlling the air inlet amount of an air inlet system in an opening and closing mode, and a filtering device used for filtering airflow and rotating along with the airflow is installed behind the main body device. The cleaning device is mounted on the filtering device and is used for brushing and filtering dust on two sides and collecting the dust in a closed manner; the cleaning device comprises a cleaning cover, two brush strips are symmetrically arranged in the cleaning cover up and down, two dust blocking strips are symmetrically arranged on the two sides of each brush strip, a dust collecting hopper is installed below the cleaning cover, and a dust collecting box is installed below the dust collecting hopper. According to the air door mechanism disclosed by the utility model, dust is collected after being cleaned, so that the dust is prevented from polluting air again; through the arrangement of two-side brushing, the cleaning effect is improved; and through closed collection, dust is prevented from overflowing, and the collection effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine safety ventilation, in particular to a damper mechanism. Background Art

[0002] In the process of mine safety production, ventilation management is an important part. Mine ventilation refers to ensuring that there is enough fresh air underground so that underground workers can work safely and will not feel uncomfortable due to lack of oxygen, thereby improving the working environment of the workers and ensuring the safety of their lives. Therefore, it is very necessary to systematically and scientifically carry out mine safety ventilation work in combination with the actual situation of the mine, and it is of great significance for mine safety production. In the underground ventilation system, underground dampers play an important role. Underground dampers are mainly used to control the blowing direction and ventilation volume of the air duct to achieve effective ventilation in the mine. Usually, underground dampers are divided into two types: one-way dampers and two-way dampers. The one-way damper is a door panel set on one side of the air duct, which can ventilate in a specified direction. The damper is often used in the mine inlet and outlet ducts to ensure the circulation of air in the mine. The two-way damper can switch ventilation at the connection of two adjacent air ducts, so that the wind flow switches between different air ducts, which can control the flow direction of the air and ensure the stability of the air quality.

[0003] In comparison, a Chinese patent with authorization announcement number CN218493627U discloses a damper mechanism for safe ventilation in coal mines, including a fixed plate, a focusing bucket is fixedly connected to the middle of the fixed plate, an air duct is fixedly connected to the center of one side of the focusing bucket, a filter cartridge is rotatably connected to the inner wall of the air duct near the focusing bucket, a fixed shaft is fixedly connected to the center of the inner wall of the filter cartridge, a plurality of fan blades are fixedly connected to the surface of the fixed shaft, a plurality of filter holes are provided on the surface of the filter cartridge, the diameter of the filter cartridge is matched with the width of the air duct, a plurality of brushes are fixedly connected to the bottom of the inner wall of the focusing bucket near the filter cartridge, one side of the plurality of brushes are in contact with the bottom of the outer surface of the filter cartridge, and the distribution length of the plurality of brushes is matched with the length of the filter cartridge.

[0004] The above patent cannot collect dust after cleaning, so that dust is mixed into the air again, causing air pollution. Therefore, a new device is designed. Utility Model Content

[0005] The purpose of the utility model is to provide a damper mechanism to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A damper mechanism, comprising a main body device for opening and closing to control the air intake volume of an air intake system, a filter device for filtering airflow and rotating with the airflow installed behind the main body device, and a cleaning device installed on the filter device for brushing off the filtered dust on both sides and collecting it in a sealed manner;

[0008] The cleaning device comprises a cleaning cover, in which two brush bars are symmetrically arranged up and down, two dust blocking bars are symmetrically arranged on both sides of the brush bars, a dust collecting hopper is installed under the cleaning cover, and a dust collecting box is installed under the dust collecting hopper.

[0009] Furthermore: the main device includes a door frame, two windshield doors are symmetrically installed on both sides of the door frame, the windshield doors are slidably connected to the door frame, a guide rail is arranged on the door frame, a forward and reverse threaded screw rod is installed in the guide rail, a motor is installed at one end of the forward and reverse threaded screw rod, and a control block is arranged between the forward and reverse threaded screw rod and the windshield door.

[0010] Furthermore: the filtering device includes an air guide scoop, an air duct is arranged behind the air guide scoop, a filter cartridge is installed in the air duct, a rotating shaft is arranged in the filter cartridge, a fan blade is installed on the rotating shaft, a rotating plate is installed on one side of the filter cartridge, and the filter cartridge is connected to the rotating shaft through the rotating plate.

[0011] Furthermore: the dust box is connected to the dust hopper by buckles.

[0012] Furthermore, the opposite surfaces of the brush strips are arc surfaces and fit the inner and outer surfaces of the filter cartridge.

[0013] Furthermore: the air duct and the air guide scoop are formed in one piece, and the air guide scoop is made of 204 stainless steel.

[0014] Compared with the prior art, the beneficial effects are:

[0015] 1. Prevent dust from re-polluting the air by collecting it after cleaning;

[0016] 2. The cleaning effect is improved by setting the brush on both sides;

[0017] 3. The closed collection setting prevents dust from overflowing and improves the collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a damper mechanism described in the utility model;

[0019] Figure 2 It is a partial schematic diagram of the A position of a damper mechanism described in the utility model;

[0020] Figure 3 It is a front view of the main device of a damper mechanism described in the utility model;

[0021] Figure 4It is a right sectional view of a filter device of a damper mechanism described in the utility model;

[0022] Figure 5 It is a left view of a cleaning device of a damper mechanism described in the utility model.

[0023] In the accompanying drawings: 1. main unit; 101. door frame; 102. wind shield door; 103. control block; 104. guide rail; 105. forward and reverse threaded screw; 106. motor; 2. filtering device; 201. air guide scoop; 202. air duct; 203. filter cartridge; 204. rotating shaft; 205. fan blade; 206. rotating plate; 3. cleaning device; 301. cleaning cover; 302. brush strip; 303. dust shield strip; 304. dust hopper; 305. dust box. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 A damper mechanism includes a main device 1 for opening and closing to control the air intake volume of an air intake system, a filter device 2 for filtering airflow and rotating with the airflow is installed behind the main device 1, and also includes a cleaning device 3 installed on the filter device 2 for brushing off filtered dust on both sides and collecting it in a sealed manner.

[0026] In this embodiment: the main device 1 includes a door frame 101, two windshield doors 102 are symmetrically installed on both sides of the door frame 101, and the windshield doors 102 are slidably connected to the door frame 101. A guide rail 104 is arranged on the door frame 101, and a positive and negative threaded screw rod 105 is installed in the guide rail 104. A motor 106 is installed at one end of the positive and negative threaded screw rod 105. A control block 103 is arranged between the positive and negative threaded screw rod 105 and the windshield door 102, and the control block 103 is bolted to the windshield door 102. The guide rail 104 supports the motor 106 to drive the positive and negative threaded screw rod 105 to rotate, thereby pushing the control block 103 to drive the windshield door 102 to move along the two sides of the door frame 101 to open the windshield;

[0027] In this embodiment: the filter device 2 includes an air guide 201, an air duct 202 is arranged behind the air guide 201, a filter cartridge 203 is installed in the air duct 202, a rotating shaft 204 is arranged in the filter cartridge 203, a fan blade 205 is installed on the rotating shaft 204, a rotating plate 206 is installed on one side of the filter cartridge 203, the filter cartridge 203 is connected to the rotating shaft 204 through the rotating plate 206, the air duct 202 and the air guide 201 are integrally formed, the air guide 201 is made of 204 stainless steel, the air door is opened, the air flow passes through the air guide 201 into the air duct 202 and is filtered by the filter cartridge 203, at the same time, the air flow blows the fan blade 205 to drive the rotating shaft 204 to rotate, and the rotating shaft 204 drives the filter cartridge 203 to rotate through the rotating plate 206;

[0028] The cleaning device 3 includes a cleaning cover 301, in which two brush strips 302 are symmetrically arranged in the upper and lower parts, and two dust blocking strips 303 are symmetrically arranged on both sides of the brush strips 302. A dust collecting hopper 304 is installed under the cleaning cover 301, and a dust collecting box 305 is installed under the dust collecting hopper 304. The dust collecting box 305 is snap-connected with the dust collecting hopper 304. The opposite surfaces of the brush strips 302 are arc surfaces and fit the inner and outer surfaces of the filter cartridge 203. The rotating shaft 204 drives the filter cartridge 203 to rotate through the rotating plate 206, so that the inner and outer surfaces of the filter cartridge 203 slide relative to the two brush strips 302 respectively. The brush strips 302 brush off the dust on the surface of the filter cartridge 203, and the dust falls into the dust collecting box 305 through the dust collecting hopper 304 for collection. The setting of the dust blocking strips 303 closes the cleaning cover 301, effectively prevents dust from overflowing the cleaning cover 301, and improves the collection effect.

[0029] Working principle: The guide rail 104 supports the motor 106 to drive the forward and reverse threaded screw rods 105 to rotate, thereby pushing the control block 103 to drive the wind shield door 102 to move along the two sides of the door frame 101, opening the wind shield door, allowing the airflow to pass through the wind guide 201 into the air duct 202 and be filtered by the filter cartridge 203. At the same time, the airflow blows the fan blades 205 to drive the rotating shaft 204 to rotate, and the rotating shaft 204 drives the filter cartridge 203 to rotate through the rotating plate 206, so that the inner and outer surfaces of the filter cartridge 203 slide relative to the two brush strips 302 respectively, and the brush strips 302 brush the dust on the surface of the filter cartridge 203 off, and the dust falls into the dust box 305 through the dust hopper 304 for collection. The dust shield strip 303 is set to close the cleaning cover 301, effectively preventing dust from overflowing the cleaning cover 301, thereby improving the collection effect.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A damper mechanism, comprising a main body device for opening and closing to control the air intake volume of an air intake system, a filter device for filtering airflow and rotating with the airflow is installed behind the main body device, characterized in that: It also includes a cleaning device installed on the filtering device for brushing off the filtered dust on both sides and collecting it in a sealed manner; The cleaning device comprises a cleaning cover, in which two brush bars are symmetrically arranged up and down, two dust blocking bars are symmetrically arranged on both sides of the brush bars, a dust collecting hopper is installed under the cleaning cover, and a dust collecting box is installed under the dust collecting hopper.

2. A damper mechanism according to claim 1, characterized in that: The main device includes a door frame, two windshield doors are symmetrically installed on both sides of the door frame, the windshield doors are slidably connected to the door frame, a guide rail is arranged on the door frame, a forward and reverse threaded screw rod is installed in the guide rail, a motor is installed at one end of the forward and reverse threaded screw rod, and a control block is arranged between the forward and reverse threaded screw rod and the windshield door.

3. A damper mechanism according to claim 1, characterized in that: The filtering device includes an air guide scoop, an air duct is arranged behind the air guide scoop, a filter cartridge is installed in the air duct, a rotating shaft is arranged in the filter cartridge, a fan blade is installed on the rotating shaft, a rotating plate is installed on one side of the filter cartridge, and the filter cartridge is connected to the rotating shaft through the rotating plate.

4. A damper mechanism according to claim 1, characterized in that: The dust collecting box is buckledly connected to the dust collecting hopper.

5. A damper mechanism according to claim 3, characterized in that: The opposite surface of the brush strip is an arc surface and fits the inner and outer surfaces of the filter cartridge.

6. A damper mechanism according to claim 3, characterized in that: The air duct and the air guide scoop are formed in one piece, and the air guide scoop is made of 204 stainless steel.

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