Air duct device capable of stably guiding air

Abstract

The utility model relates to the technical field of air ducts, in particular to an air duct device stable in air guide, which comprises an air duct, mounting cavities are arranged at two ends of the air duct in a penetrating manner, and a filter screen capable of moving up and down in a reciprocating manner is arranged at an air inlet of the air duct. The air duct has the advantages that the filter screen is automatically replaced, the air duct has the advantages of being convenient to use and stable in air guide, the group exhaust fan communicated with the inner cavity of the air duct is arranged on one side of the filter screen, dust adsorbed and left on the surface of the filter screen is blown down in the mode that the group exhaust fan blows air to the back face of the filter screen reversely, and the filter screen has the filtering function for a long time; meanwhile, an air suction cover is arranged on the side, away from the group exhaust fan, of the filter screen, the group exhaust fan blows air reversely to clean the filter screen, meanwhile, a dust suction air pump is started to suck dust and impurities blown off from the filter screen at the air suction cover, and the air guide device further has the advantages of being convenient to use and stable in air guide.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to an air duct device with stable air guiding. Background Art

[0002] Air duct is a main air guide device for local ventilation. Depending on the manufacturing materials, there are flexible air ducts such as canvas, artificial leather, plastic and rubber, and metal air ducts made of iron sheets and aluminum plates.

[0003] Among them, the advantages of metal air ducts are durability, long service life, and applicability to various ventilation methods. The disadvantages are high cost, easy corrosion, bulky, inconvenient disassembly, assembly and transportation, and difficulty in using in curved tunnels. The advantages of flexible air ducts are lightness, easy disassembly and assembly and transportation, and few joints. The disadvantages are low strength, easy damage, short service life, and can only be used for push-in ventilation. Flexible air ducts are used when push-in ventilation is used in coal mines.

[0004] Since the air contains large-sized particles and impurities, the air enters the wind tube and hits the inner wall of the wind tube, which can easily reduce the stability of the wind tube in the working structure and is not conducive to the normal operation of the wind tube. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a wind tube device with stable wind guiding, which can effectively solve the problem of unstable wind guiding in the prior art.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides an air duct device with stable air guidance, comprising an air duct, installation cavities are penetrated at both ends of the air duct, a filter assembly comprises two driving rollers rotatably mounted at the top and bottom ends of the air duct, the two driving rollers roll up a same filter screen, the filter screen slides up and down and penetrates the installation cavity, two exhaust fan groups are respectively fixedly mounted at the top and bottom ends of the air duct and are communicated with the installation cavity, the output ends of the two exhaust fan groups are opposite to the filter screen, two dust suction air pumps are respectively fixedly mounted at both sides of the air duct and are communicated with the installation cavity, and the input ends of the two dust suction air pumps are communicated with dust hoods which are respectively fixedly mounted at the top and bottom ends of the air duct and are installed on the side of the filter screen away from the exhaust fan group.

[0008] Furthermore, a movable socket is provided through the installation cavity between the top and bottom of the air duct, and the filter is installed in the movable socket in a lifting and sliding manner. The end of the air duct away from the filter is fixed with a docking seat, and screws are threaded at the four corners of the docking seat.

[0009] Furthermore, the filter assembly also includes four mounting seats, and the four mounting seats are fixedly installed in parallel at the top and bottom of the wind cylinder in pairs, and the two ends of the two driving rollers are rotatably installed with the corresponding mounting seats respectively.

[0010] Furthermore, a servo motor is installed on the outer side wall of each of the upper and lower mounting seats, and the output ends of the two servo motors are fixedly connected to the corresponding driving rollers respectively.

[0011] Furthermore, the filter assembly also includes four brackets, which are fixedly installed in parallel at the top and bottom of the wind tube in pairs, and a steering roller is rotatably installed between two opposite brackets, and both steering rollers are in rolling contact with the filter screen.

[0012] Furthermore, an exhaust pipe is connected between the input ends of the two dust suction air pumps and the two dust suction hoods, and an exhaust cavity connected to the exhaust pipe is opened on the side of the two dust suction hoods close to the filter.

[0013] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] 1. First, a filter that can reciprocate up and down and roll up is set at the air inlet of the fan. Under the premise of ensuring continuous filtering and intercepting of dust and foreign matter at the air inlet of the fan, the filter can be automatically replaced, which is initially easy to use and has stable air guide;

[0015] 2. An exhaust fan connected to the inner cavity of the air duct is arranged on one side of the filter. The exhaust fan blows air in the reverse direction to the back of the filter to blow off the residual dust adsorbed on the surface of the filter, so that the filter has a long-term filtering effect. At the same time, a suction hood is arranged on the side of the filter away from the exhaust fan. When the exhaust fan blows air in the reverse direction to clean the filter, the dust and impurities blown off the filter at the suction hood are extracted by starting the dust suction air pump, which is further characterized by easy use and stable air guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the air duct of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the installation structure of the dust suction air pump and the dust suction hood.

[0021] The numbers in the figure represent: 1. air duct; 11. mounting cavity; 12. movable socket; 13. docking seat; 14. screw; 2. filter assembly; 21. mounting seat; 22. drive roller; 23. filter screen; 24. servo motor; 25. bracket; 26. steering roller; 3. exhaust fan; 4. dust suction air pump; 41. dust suction hood; 42. exhaust cavity; 43. exhaust pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0023] The utility model is further described below in conjunction with embodiments.

[0024] Example 1

[0025] Reference Figure 1-4 , which is the first embodiment of the utility model, discloses a wind tube device with stable wind guide, including a wind tube 1, a mounting cavity 11 is opened through both ends of the wind tube 1, a filter assembly 2 includes two driving rollers 22 rotatably mounted on the top and bottom ends of the wind tube 1, the two driving rollers 22 roll up a same filter screen 23, the filter screen 23 slides up and down and penetrates the mounting cavity 11, two exhaust fans 3 are respectively fixedly mounted on the top and bottom ends of the wind tube 1, and are connected to the mounting cavity 11, and the output ends of the two exhaust fans 3 are both connected to the filter screen 23. The two dust suction air pumps 4 are respectively fixedly mounted on both sides of the air cylinder 1 and are connected to the installation cavity 11. The air after being extracted, filtered and collected by the dust suction air pump 4 flows back into the installation cavity 11 to ensure efficient air circulation. The input ends of the two dust suction air pumps 4 are connected to dust suction hoods 41 which are respectively fixedly mounted on the top and bottom ends of the air cylinder 1 and are installed on the side of the filter 23 away from the exhaust fan 3. Figure 1 It can be known that the dust and impurities blown off from the mesh of the filter 23 will be directly sucked into the suction chamber 42 of the dust hood 41.

[0026] Example 2

[0027] Reference Figure 1-4 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: a movable socket 12 is provided between the top and bottom of the air duct 1 through the installation cavity 11, and the filter 23 is adaptively installed in the movable socket 12 by lifting and sliding. Figure 1 It can be known that the filter screen 23 is always located in the movable socket 12 during the process of winding up and down, ensuring that there is no blind spot left by the filtration, and the end of the air duct 1 away from the filter screen 23 is fixed with a docking seat 13, and the four corners of the docking seat 13 are threaded with screws 14, which is convenient for docking with the ventilation duct, and the filter assembly 2 also includes four mounting seats 21, and the four mounting seats 21 are fixedly installed in parallel at the top and bottom of the air duct 1, and the two ends of the two driving rollers 22 are respectively rotatably installed with the corresponding mounting seats 21, and a servo motor 24 is installed on the outer side wall of each mounting seat 21, and the reciprocating winding or Release, the output ends of the two servo motors 24 are fixedly connected to the corresponding driving rollers 22 respectively, the filter assembly 2 also includes four brackets 25, the four brackets 25 are fixedly installed in pairs at the top and bottom of the wind tube 1, and steering rollers 26 are rotatably installed between the two opposite brackets 25. The two steering rollers 26 are in rolling contact with the filter screen 23. The steering rollers 26 can prevent the filter screen 23 from contacting and wearing with the exhaust fan 3 during the reciprocating winding or releasing process. The input ends of the two dust suction air pumps 4 and the two dust suction hoods 41 are connected with exhaust pipes 43, and the two dust suction hoods 41 are close to the filter screen 23. The side is provided with an exhaust cavity 42 connected with the exhaust pipe 43.

[0028] The remaining structures are the same as those of Example 1.

[0029] First, the air duct 1 is installed in the ventilation duct through the docking seat 13 and the screws 14, and the fan on the ventilation duct is started to introduce outside air from the air inlet of the installation cavity 11 and replenish it into the installation cavity 11 to strengthen the air circulation inside the ventilation duct. In this process, dust and impurities in the outside air are intercepted by the filter 23. The surface filter holes of the filter 23 are easily blocked after long-term interception. At this time, the two servo motors 24 are started synchronously, but one must be driven clockwise and the other counterclockwise to reel in and release the filter 23 respectively, so that the filter 23 with a brand new mesh that is not blocked moves again to cover the cavity opening of the installation cavity 11;

[0030] Secondly, the two exhaust fans 3 are started at the same time to extract the clean air in the installation cavity 11 after being filtered by the filter screen 23, and blow air in the reverse direction from the back of the filter screen 23 to blow off the dust and impurities originally adhering to the mesh of the filter screen 23 and now located in the mesh of the filter screen 23 above and below the air duct 1;

[0031] Finally, while the two exhaust fans 3 blow air in the opposite direction to clean the filter 23, the two dust pumps 4 are started, and the air in the suction chamber 42 of the two dust hoods 41 close to the filter 23 is extracted through the exhaust pipe 43, so that the exhaust chamber 42 of the two dust hoods 41 forms a negative pressure, thereby absorbing the dust falling off the filter 23, and finally the dust pumps 4 collect and store it through the exhaust pipe 43. During the entire cleaning process, the filter 23 always keeps filtering and intercepting the dust and impurities at the air inlet of the installation cavity 11, so that the wind tube 1 has the characteristics of easy use and stable air guidance.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wind tube device with stable air guide, comprising a wind tube (1), wherein both ends of the wind tube (1) are penetrated by installation cavities (11), characterized in that: Also includes: The filter assembly (2) comprises two driving rollers (22) rotatably mounted at the top and bottom of the air cylinder (1), the two driving rollers (22) rolling up a same filter screen (23), and the filter screen (23) slides up and down through the mounting cavity (11); Two sets of exhaust fans (3) are respectively fixedly mounted at the top and bottom of the air cylinder (1) and are connected to the mounting cavity (11); the output ends of the two sets of exhaust fans (3) are opposite to the filter screen (23); Two dust suction air pumps (4) are respectively fixedly mounted on both sides of the air cylinder (1) and are connected to the mounting cavity (11); the input ends of the two dust suction air pumps (4) are both connected to a dust suction hood (41) which is respectively fixedly mounted on the top and bottom ends of the air cylinder (1) and is mounted on the side of the filter screen (23) away from the exhaust fan (3).

2. A wind tube device with stable wind guide according to claim 1, characterized in that: A movable socket (12) is provided between the top and bottom of the air duct (1) and through the installation cavity (11); the filter (23) is installed in the movable socket (12) in a manner that it can be lifted and slid accordingly; the end of the air duct (1) away from the filter (23) is fixedly mounted on a docking seat (13); screws (14) are threadedly installed at the four corners of the docking seat (13).

3. The wind tube device with stable wind guide according to claim 1, characterized in that: The filter assembly (2) further comprises four mounting seats (21), wherein the four mounting seats (21) are fixedly mounted in parallel in pairs at the top and bottom of the wind tube (1), and the two ends of the two driving rollers (22) are rotatably mounted on the corresponding mounting seats (21) respectively.

4. A wind tube device with stable wind guide according to claim 3, characterized in that: A servo motor (24) is mounted on the outer side wall of each of the upper and lower mounting seats (21), and the output ends of the two servo motors (24) are respectively fixedly connected to corresponding driving rollers (22).

5. A wind tube device with stable wind guide according to claim 4, characterized in that: The filter assembly (2) further comprises four brackets (25), wherein the four brackets (25) are fixedly mounted in parallel at the top and bottom of the wind tube (1), and a steering roller (26) is rotatably mounted between two opposing brackets (25), and the two steering rollers (26) are in rolling contact with the filter screen (23).

6. The wind tube device with stable wind guide according to claim 1, characterized in that: An air suction pipe (43) is connected between the input ends of the two dust suction air pumps (4) and the two dust suction hoods (41), and an air suction cavity (42) connected to the air suction pipe (43) is provided on one side of the two dust suction hoods (41) close to the filter screen (23).

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