Ventilation pipeline filtering device

Abstract

The utility model discloses a ventilation pipeline filtering device which comprises a first shell, a second shell is arranged at the rear end of the first shell, and the ventilation pipeline filtering device further comprises a filtering mechanism. The filtering mechanism comprises a connecting column, a rubber pad, a rotating ring and an air filter screen, the connecting column is fixedly connected between the first shell and the second shell, the rotating ring is rotationally connected to the outer surface of the connecting column, the air filter screen is arranged in the rotating ring, the rubber pad is fixedly connected to the rear surface of the first shell, and the rubber pad is also fixedly connected to the front surface of the second shell. According to the ventilation pipeline filtering device, through the filtering mechanism, rapid dismounting and mounting of the filtering net can be achieved without the complex dismounting and mounting process, the filtering net replacement process is simple and rapid, and therefore replacement and maintenance of the filtering net can be completed more rapidly; the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a ventilation duct filtering device. Background Technique

[0002] A ventilation duct is a metal or non-metal duct used in the ventilation and air conditioning projects of industrial and civil buildings, mainly used to realize the circulation and exchange of air inside the building, so as to keep the indoor air fresh and comfortable. A ventilation duct filtering device is usually installed inside the ventilation duct to filter dust and impurities in the air;

[0003] The existing ventilation duct filtering device usually installs a detachable air filter screen in the ventilation duct to filter the air in the ventilation duct;

[0004] The existing ventilation duct filtering device fixes the air filter screen in the ventilation duct through bolts. When replacing the air filter screen, it is necessary to disassemble and assemble the screws of the air filter screen again, and the connecting pipes also need to be repeatedly disassembled for maintenance to complete the replacement of the filtering device. Such a replacement process is more cumbersome, affecting the replacement and maintenance efficiency of the air filter screen. For this reason, we propose a ventilation duct filtering device. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a ventilation duct filtering device. Through the filtering mechanism, the quick disassembly and assembly of the filter screen can be realized without a complex disassembly and assembly process, making the filter screen replacement process simple and fast, so as to complete the replacement and maintenance of the filter screen faster and improve the work efficiency. The problems in the background technique can be effectively solved.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a ventilation duct filtering device, including a first shell, a second shell is arranged at the rear end of the first shell, and a filtering mechanism is further included;

[0007] Filtering mechanism: including a connecting column, a rubber pad, a rotating ring and an air filter screen. The connecting column is fixedly connected between the first shell and the second shell. A rotating ring is rotatably connected to the outer surface of the connecting column. An air filter screen is arranged inside the rotating ring. A rubber pad is fixedly connected to the rear surface of the first shell, and a rubber pad is also fixedly connected to the front surface of the second shell. Through the filtering mechanism, the quick disassembly and assembly of the filter screen can be realized without a complex disassembly and assembly process, making the filter screen replacement process simple and fast, so as to complete the replacement and maintenance of the filter screen faster and improve the work efficiency.

[0008] Further, symmetrically distributed slots are provided inside the air filter. Limiting blocks II are slidably connected inside the slots. Symmetrically distributed first springs are fixedly connected between the limiting blocks II and one end of the slots close to the center of the air filter. Symmetrically distributed slots are provided inside the rotating ring. The limiting blocks II are slidably connected inside the adjacent slots on the same side, facilitating the removal of the filter screen.

[0009] Further, a longitudinally communicating avoidance groove is provided inside the first housing, the rubber pad, the rotating ring, and the second housing. A limiting block I is slidably connected inside the avoidance groove of the first housing, and a limiting block I is also slidably connected inside the avoidance groove of the second housing. A second spring is fixedly connected between the front limiting block I and the front surface of the avoidance groove, and a second spring is also fixedly connected between the rear limiting block I and the rear surface of the avoidance groove, locking the rotating ring.

[0010] Further, a control switch is fixedly connected to the outer surface of the first housing. The input end of the control switch is electrically connected to the output end of an external power supply, controlling the fan.

[0011] Further, an air inlet is provided at the front end of the first housing. A fan is fixedly connected inside the first housing. The input end of the fan is electrically connected to the output end of the control switch, assisting in ventilating the ventilation duct.

[0012] Further, an air outlet is also included. The air outlet is provided at the rear end of the second housing, discharging the filtered air.

[0013] Further, uniformly distributed mounting holes are provided at the front end of the first housing and the rear end of the second housing, facilitating the installation of the ventilation duct filtering device.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: This ventilation duct filtering device has the following advantages:

[0015] Through the filtering mechanism, the air filter screen is screwed in and plugged for installation. When the air filter screen is taken out for maintenance, it is plugged and separated and screwed out, without the need to repeatedly disassemble nuts, and the connecting pipes do not need to be repeatedly disassembled either. This makes the disassembly and assembly process faster, simplifies the filter screen replacement process, and thus enables faster replacement and maintenance of the filter screen, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0018] Figure 3 is an enlarged schematic structural diagram of part A of the present utility model;

[0019] Figure 4Schematic diagram of the enlarged structure at position B of the present utility model;

[0020] Figure 5 Schematic cross-sectional structure view from the right side of the present utility model.

[0021] In the figure: 1 outer shell one, 2 air inlet, 3 mounting hole, 4 air outlet, 5 spring one, 6 limiting block one, 7 filtering mechanism, 71 connecting column, 72 rubber pad, 73 rotating ring, 74 air filter screen, 8 spring two, 9 limiting block two, 10 outer shell two, 11 fan, 12 control switch. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5 , this embodiment provides a technical solution: a ventilation duct filtering device, including an outer shell one 1, the rear end of the outer shell one 1 is provided with an outer shell two 10, the outer surface of the outer shell one 1 is fixedly connected with a control switch 12, the input end of the control switch 12 is electrically connected to the output end of an external power source, the front end of the outer shell one 1 is provided with an air inlet 2, a fan 11 is fixedly connected inside the outer shell one 1, the input end of the fan 11 is electrically connected to the output end of the control switch 12, and further includes an air outlet 4, the air outlet 4 is opened at the rear end of the outer shell two 10, and both the front end of the outer shell one 1 and the rear end of the outer shell two 10 are provided with uniformly distributed mounting holes 3, which is convenient for the butt joint installation of the ventilation system duct, install the ventilation duct filtering device at a suitable position, operate the control switch 12, turn on the fan 11, the fan 11 rotates to assist the ventilation of the ventilation duct, and further includes a filtering mechanism 7;

[0024] Filter mechanism 7: It includes a connecting column 71, a rubber pad 72, a rotating ring 73 and an air filter 74. The connecting column 71 is fixedly connected between the first housing 1 and the second housing 10. The outer surface of the connecting column 71 is rotatably connected with a rotating ring 73. An air filter 74 is arranged inside the rotating ring 73. A rubber pad 72 is fixedly connected to the rear surface of the first housing 1, and a rubber pad 72 is also fixedly connected to the front surface of the second housing 10. Symmetrically distributed slots are formed inside the air filter 74. A second limiting block 9 is slidably connected to each slot. A symmetrically distributed first spring 5 is fixedly connected between the second limiting block 9 and one end of the slot close to the center of the air filter 74. Symmetrically distributed slots are formed inside the rotating ring 73. The second limiting blocks 9 are all slidably connected to the adjacent slots on the same side. A longitudinally communicating avoidance groove is arranged inside the first housing 1, the rubber pad 72, the rotating ring 73 and the second housing 10. A first limiting block 6 is slidably connected to the avoidance groove of the first housing 1, and a first limiting block 6 is also slidably connected to the avoidance groove of the second housing 10. A second spring 8 is fixedly connected between the front first limiting block 6 and the front surface of the avoidance groove, and a second spring 8 is also fixedly connected between the rear first limiting block 6 and the rear surface of the avoidance groove. Push the first limiting block 6 in the direction away from the rotating ring 73, and the first limiting block 6 slides out of the limiting groove inside the rotating ring 73. At this time, the second spring 8 contracts. Then rotate the rotating ring 73 by 180°. Take out the rotating ring 73 from between the first housing 1 and the second housing 10. At this time, push the second limiting block 9 in the direction of the center of the air filter 74, and the second limiting block 9 slides out of the slot. The first spring 5 contracts. Take out the air filter 74 for cleaning or replacement. After replacement, put the air filter 74 into the inside of the rotating ring 73. Release the second limiting block 9, and the first spring 5 expands, pushing the second limiting block 9 to insert into the slot to complete the replacement of the air filter 74. At this time, rotate the rotating ring 73 so that it rotates 180°. Then release the first limiting block 6, and the second spring 8 expands, pushing the first limiting block 6 to slide into the limiting groove inside the rotating ring 73 to complete the locking.

[0025] The working principle of a ventilation duct filtering device provided by the present utility model is as follows: Install the ventilation duct filtering device at a suitable position, operate the control switch 12 to turn on the fan 11. The rotation of the fan 11 assists in ventilating the ventilation duct. When the filter screen needs to be replaced, push the first limiting block 6 in a direction away from the rotating ring 73. The first limiting block 6 slides out of the limiting groove inside the rotating ring 73. At this time, the second spring 8 contracts. Then rotate the rotating ring 73 by 180°. Take out the rotating ring 73 from between the first housing 1 and the second housing 10. At this time, push the second limiting block 9 in the direction of the center of the air filter screen 74. The second limiting block 9 slides out of the slot, and the first spring 5 contracts. Take out the air filter screen 74 for cleaning or replacement. After replacement, put the air filter screen 74 into the rotating ring 73. Release the second limiting block 9, and the first spring 5 expands, pushing the second limiting block 9 into the slot to complete the replacement of the air filter screen 74. At this time, rotate the rotating ring 73 to make it rotate 180°. Then release the first limiting block 6, and the second spring 8 expands, pushing the first limiting block 6 to slide into the limiting groove inside the rotating ring 73 to complete the locking.

[0026] It should be noted that in the above embodiments, the fan 11 disclosed is a KDE2404PFV fan, and the control switch is provided with a control button corresponding to the fan 11 and used to control its switch.

[0027] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A ventilation duct filtering device, comprising a first housing (1), and a second housing (10) is provided at the rear end of the first housing (1), characterized in that: It further includes a filtering mechanism (7); Filtering mechanism (7): It includes a connecting column (71), a rubber pad (72), a rotating ring (73) and an air filter screen (74). The connecting column (71) is fixedly connected between the first housing (1) and the second housing (10). The outer surface of the connecting column (71) is rotatably connected with a rotating ring (73). The inside of the rotating ring (73) is provided with an air filter screen (74). The rear surface of the first housing (1) is fixedly connected with a rubber pad (72), and the front surface of the second housing (10) is also fixedly connected with a rubber pad (72).

2. The air duct filtering device according to claim 1, characterized in that: Symmetrically distributed slots are formed inside the air filter screen (74). Limiting blocks II (9) are slidably connected in the slots. Symmetrically distributed first springs (5) are fixedly connected between the limiting blocks II (9) and the ends of the slots close to the center of the air filter screen (74). Symmetrically distributed inserting slots are formed inside the rotating ring (73). The limiting blocks II (9) are slidably connected in the adjacent inserting slots on the same side.

3. A ventilation duct filtering device according to claim 1, characterized in that: Longitudinally communicating avoidance grooves are provided inside the first housing (1), the rubber pad (72), the rotating ring (73) and the second housing (10). A limiting block I (6) is slidably connected in the avoidance groove of the first housing (1), and a limiting block I (6) is also slidably connected in the avoidance groove of the second housing (10). A second spring (8) is fixedly connected between the front limiting block I (6) and the front surface of the avoidance groove, and a second spring (8) is also fixedly connected between the rear limiting block I (6) and the rear surface of the avoidance groove.

4. A ventilation duct filtering device according to claim 1, characterized in that: A control switch (12) is fixedly connected to the outer surface of the first housing (1). The input end of the control switch (12) is electrically connected to the output end of an external power supply.

5. The air duct filtering device according to claim 4, characterized in that: An air inlet (2) is formed at the front end of the first housing (1). A fan (11) is fixedly connected inside the first housing (1). The input end of the fan (11) is electrically connected to the output end of the control switch (12).

6. The air duct filtering device according to claim 1, characterized in that: It further includes an air outlet (4), and the air outlet (4) is formed at the rear end of the second housing (10).

7. A ventilation duct filtering device according to claim 1, characterized in that: Uniformly distributed mounting holes (3) are formed at the front end of the first housing (1) and the rear end of the second housing (10).

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