Automatic filtering air pipe

Abstract

The utility model discloses an automatic filtering air pipe, relates to the technical field of air pipes, and aims to solve the problems that dust or sundries are accumulated in the air pipe due to the fact that an existing air pipe cannot filter air entering the air pipe, ventilation of the air pipe is possibly affected by the accumulation of the sundries or the dust in the air pipe, and the air pipe cannot be used for filtering the air in the air pipe. According to the key points of the technical scheme, the device comprises a middle connecting pipe and a filter pipe, one end of the filter pipe is detachably connected with a filter frame, and the filter frame, the filter pipe and the left side of the filter frame are fixedly connected with an inserting frame body; a clamping frame body matched with the inserting frame body is fixedly connected to the right sides of the middle connecting pipe and the filter pipe, an inserting groove matched with the inserting frame body is formed in the clamping frame body, and a filter screen used for filtering is detachably connected to the interior of the filter frame; the effects of full filtration, accumulation prevention, convenience in disassembly and assembly and sealed filtration are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to an automatic filtering air duct. Background Art

[0002] Composition of air duct: Air duct is a piping system used for air transportation and distribution. Air duct can be classified according to cross-sectional shape and material. According to cross-sectional shape, air duct can be divided into circular air duct, rectangular air duct, oblate air duct and so on. Among them, circular air duct has the smallest resistance and the largest height dimension, and is complex to make, so rectangular air duct is mainly used. According to material, air duct can be divided into metal air duct, composite air duct and so on.

[0003] After searching, in the prior art, publication number CN01259507.1 discloses a polymer air duct sheet whose thickness is selected according to the cross-sectional area of ​​the air duct, and the surface layer is formed by polymer foaming to form semicircular holes, which has excellent properties such as noise reduction, light weight, and heat insulation. The polymer air duct is formed by polymer sheet through adhesive, and there is no metal reinforcement ring inside and outside the air duct. The cleaning rod can be supported by round steel rods, and the metal reinforcement strips and reinforcement strips further strengthen the strength of the air duct. Round steel cleaning rods are provided in the middle part of the upper and lower parts of the air duct, and metal corners are provided at the four corners outside the air duct. Metal reinforcement rings are provided around the outer surface of the air duct, and polymer materials are wrapped in the metal reinforcement rings to ensure that the air duct as a whole can withstand pressure, make it flat, meet the standard, and adjust to the accurate size with nuts.

[0004] However, the device and the prior art still have the following defects:

[0005] The existing air duct cannot filter the air entering the air duct, which causes dust or debris to accumulate inside the air duct. The debris or dust accumulation inside the air duct may affect the ventilation of the air duct, reducing the overall ventilation effect and thus reducing the overall practicality. Utility Model Content

[0006] The utility model aims to provide an automatic filtering air duct which can fully filter the dust and sundries entering the interior of the air duct.

[0007] An automatic filtering air duct comprises a middle connecting tube and a filtering tube, wherein one end of the filtering tube is detachably connected to a filtering frame, the filtering frame, the filtering tube and the left side of the filtering frame are fixedly connected to a plug-in frame, the middle connecting tube and the right side of the filtering tube are fixedly connected to a snap-in frame adapted to the plug-in frame, a plug-in groove adapted to the plug-in frame is provided inside the snap-in frame, and a filter net for filtering is detachably connected inside the filtering frame.

[0008] By adopting the above technical solution, the filter screen is limited by the filter frame, thereby ensuring that the filter screen can fully filter the air entering the filter tube, ensuring an overall good filtering effect, and the overall installation and disassembly are convenient, increasing the overall flexibility.

[0009] Furthermore, the plug-in frame side wall is movably connected with a spring button, the plug-in frame side wall is provided with a fixed card hole interconnected with the plug-in slot, the spring button is distributed corresponding to the four sides of the plug-in frame, and the spring button and the fixed card hole are distributed correspondingly.

[0010] By adopting the above technical solution, the spring button can drive the spring button to engage with the fixed hole, thereby ensuring stable engagement between the plug-in frame and the card-jointed frame, making it convenient to assemble the middle connecting tube, the filter tube and the filter frame.

[0011] Furthermore, a mounting groove for the spring button to move is provided inside the plug-in frame, a mounting spring is fixedly connected inside the mounting groove, a side of the mounting spring away from the mounting groove is fixedly connected to the spring button, and the spring button is adapted to the fixed clamping hole.

[0012] By adopting the above technical solution, the installation spring can drive the spring button to move and engage with the fixed hole, thereby ensuring stable engagement between the plug-in frame and the card connection frame and ensuring the stability of the overall installation.

[0013] Furthermore, the filter frame has an air vent inside for air to pass through, the filter screen has an outer fixed frame structure, the length and width of the outer fixed frame of the filter screen are smaller than the length and width of the inner wall of the filter frame, and the length and width of the outer fixed frame of the filter screen are greater than the length and width of the air vent.

[0014] By adopting the above technical solution, the filter net can fully filter the air entering the filter tube, preventing dust and debris from accumulating inside the filter tube and causing blockage that affects exhaust.

[0015] Furthermore, a compression spring is fixedly connected to the outer side of the filter tube, and a compression plate is fixedly connected to a side of the compression spring away from the filter tube.

[0016] By adopting the above technical solution, the compression spring can drive the compression plate to fully compress the filter screen, thereby ensuring an overall good filtering effect.

[0017] Furthermore, the clamping plate is a rectangular frame structure with a hollow interior, and the clamping plate is adapted to the shape and size of the fixing frame.

[0018] By adopting the above technical solution, the compression plate with an internal hollow rectangular frame structure can ensure sufficient compression while ensuring overall ventilation, thereby reducing the overall situation of insufficient filtration.

[0019] In summary, the beneficial technical effects of the utility model are:

[0020] 1. The filter frame and filter tube are used to ensure that the filter net can fully filter the air entering the filter tube, ensuring a good overall filtering effect, thereby producing a sufficient filtering effect to prevent accumulation;

[0021] 2. It adopts spring buttons and fixed holes for fixing, which is convenient for installation and disassembly, so as to facilitate the assembly of the middle connecting pipe, filter pipe and filter frame, thus creating an effect of easy disassembly and assembly;

[0022] 3. A compression spring is used to drive the compression plate to compress the filter screen, ensuring that the filter screen can fully filter the air entering the filter tube, thereby producing a fully sealed filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the split structure of the filtering framework of the present invention;

[0026] Figure 3 It is a schematic diagram of the split structure of the filter screen of the present invention.

[0027] In the figure, 1, middle connecting pipe; 2, filter pipe; 3, filter frame; 4, plug-in frame; 5, snap-in frame; 6, plug-in slot; 7, filter screen; 21, clamping spring; 22, clamping plate; 31, vent hole; 41, spring clamp button; 42, mounting slot; 43, mounting spring; 51, fixing clamp hole; 71, fixing frame. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] 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.

[0030] See also Figure 1-3 The utility model provides a technical solution: an automatic filtering air duct, comprising a middle connecting pipe 1 and a filter tube 2, one end of the filter tube 2 is detachably connected with a filter frame 3, the filter frame 3, the filter tube 2 and the left side of the filter frame 3 are fixedly connected with a plug-in frame 4, the middle connecting pipe 1 and the filter tube 2 are fixedly connected with a card-joined frame 5 adapted to the plug-in frame 4 on the right side, a plug-in slot 6 adapted to the plug-in frame 4 is provided inside the card-joined frame 5, a filter screen 7 for filtering is detachably connected inside the filter frame 3, the plug-in frame 4 and the card-joined frame 5 can be fully plugged and fixed, thereby ensuring a good overall installation effect, facilitating overall assembly, and increasing overall flexibility.

[0031] Reference Figure 2 The side wall of the plug-in frame 4 is movably connected with a spring button 41, and the side wall of the card-connecting frame 5 is provided with a fixed card hole 51 which is interconnected with the plug-in slot 6. The spring button 41 is distributed on the four sides of the plug-in frame 4, and the spring button 41 is distributed correspondingly to the fixed card hole 51. The spring button 41 distributed on the four sides of the plug-in frame 4 can be fully engaged with the fixed card hole 51 to ensure that the plug-in frame 4 and the card-connecting frame 5 are conveniently installed and removed as a whole. An installation groove 42 for the spring button 41 to move is provided inside the plug-in frame 4, and an installation spring 43 is fixedly connected inside the installation groove 42, and a side of the installation spring 43 away from the installation groove 42 is fixedly connected to the spring button 41 Then, the spring button 41 is adapted to the fixed card hole 51, and the spring button 41 and the fixed card hole 51 can be fully engaged, so as to facilitate the overall installation and disassembly. A compression spring 21 is fixedly connected to the outside of the filter tube 2, and a compression plate 22 is fixedly connected to the side of the compression spring 21 away from the filter tube 2. The compression spring 21 can drive the compression plate 22 to fully compress the fixed frame 71 to ensure a good overall installation effect. The compression plate 22 is an internal hollow rectangular frame structure, and the compression plate 22 is adapted to the shape and size of the fixed frame 71. The compression plate 22 with an internal hollow rectangular frame structure is adapted to the shape and size of the fixed frame 71, so as to facilitate the overall compression.

[0032] Reference Figure 3A vent hole 31 is provided inside the filter frame 3 for air to pass through. The filter screen 7 is a structure with a fixed frame 71 on the outside. The length and width of the fixed frame 71 on the outside of the filter screen 7 are smaller than the length and width of the inner wall of the filter frame 3. The length and width of the fixed frame 71 on the outside of the filter screen 7 are greater than the length and width of the vent hole 31. The filter screen 7 can fully filter the air inside the filter tube 2 to ensure an overall good filtering effect.

[0033] Working principle: By using the plug-in frame 4 to plug into the card-connecting frame 5, and during the plug-in process, the spring buttons 41 distributed on the four sides of the plug-in frame 4 can be fully engaged with the fixed card holes 51, ensuring that the plug-in frame 4 and the card-connecting frame 5 are conveniently installed and disassembled as a whole, thereby completing the installation and disassembly of the middle connecting tube 1, the filter tube 2 and the filter frame 3. During the overall ventilation process, the filter net 7 can fully filter the air inside the filter tube 2 to ensure an overall good filtering effect.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic filtering air duct, comprising a middle connecting pipe (1) and a filtering pipe (2), characterized in that: One end of the filter tube (2) is detachably connected to a filter frame (3); the filter frame (3), the filter tube (2) and the left side of the filter frame (3) are fixedly connected to a plug-in frame (4); the middle connecting tube (1) and the right side of the filter tube (2) are fixedly connected to a snap-in frame (5) that matches the plug-in frame (4); a snap-in slot (6) that matches the plug-in frame (4) is provided inside the snap-in frame (5); and a filter screen (7) for filtering is detachably connected inside the filter frame (3).

2. The automatic filtering air duct according to claim 1, characterized in that: The side wall of the plug-in frame (4) is movably connected with a spring clamping button (41), and the side wall of the clamping frame (5) is provided with a fixed clamping hole (51) which is interconnected with the plug-in slot (6). The spring clamping button (41) is distributed corresponding to the four sides of the plug-in frame (4), and the spring clamping button (41) and the fixed clamping hole (51) are distributed correspondingly.

3. The automatic filtering air duct according to claim 2, characterized in that: The plug-in frame (4) is provided with a mounting groove (42) for the spring clamping button (41) to move, and a mounting spring (43) is fixedly connected to the mounting groove (42). A side of the mounting spring (43) away from the mounting groove (42) is fixedly connected to the spring clamping button (41), and the spring clamping button (41) is matched with the fixed clamping hole (51).

4. The automatic filtering air duct according to claim 3, characterized in that: The filter frame (3) is provided with an air vent (31) for air to pass through. The filter screen (7) is a structure with an outer fixed frame (71). The length and width of the outer fixed frame (71) of the filter screen (7) are smaller than the length and width of the inner wall of the filter frame (3). The length and width of the outer fixed frame (71) of the filter screen (7) are larger than the length and width of the air vent (31).

5. The automatic filtering air duct according to claim 4, characterized in that: A compression spring (21) is fixedly connected to the outside of the filter tube (2), and a compression plate (22) is fixedly connected to a side of the compression spring (21) away from the filter tube (2).

6. The automatic filtering air duct according to claim 5, characterized in that: The clamping plate (22) is a rectangular frame structure with a hollow interior, and the clamping plate (22) and the fixing frame (71) are compatible in shape and size.

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