Impurity filtering device of fresh air pipeline

Abstract

The utility model discloses an impurity filtering device of a fresh air pipeline, which relates to the technical field of fresh air pipelines and comprises a pipeline body, a filter screen plate is embedded and inserted in the pipeline body, and a socket embedded and inserted at the top end of the pipeline body is fixed at the top end of the filter screen plate; in the daily use process of the filter screen plate, the lifting adjusting mechanism is used for driving the lifting plate to ascend and descend up and down in the pipeline body so as to drive the cleaning brush on the inner side of the concave seat to brush and clean the surface of the filter screen plate up and down, and the speed that the surface of the filter screen plate is blocked by impurities can be effectively reduced; the problem that the filter screen plate needs to be frequently disassembled and cleaned can be avoided, practicability and convenience are achieved, the socket is embedded in the top end of the pipeline body in an inserted mode, the filter screen plate is fixed to the bottom end of the socket, and meanwhile the socket and the pipeline body are clamped and fixed through the clamping mechanism; and therefore, the filter screen plate can be conveniently detached from the interior of the pipeline body when needing to be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air ducts, in particular to an impurity filtering device for fresh air ducts. Background Art

[0002] With the improvement of people's living standards, people's requirements for the quality of life are also getting higher and higher. There are also new air supply methods in indoor ventilation technology, and the fresh air system emerges as the times require. The fresh air system is a ventilation device that can provide fresh air. It exchanges indoor and outdoor air through mechanical means to improve the indoor air quality. During the process of introducing outdoor air into the room, a corresponding filtration and purification device is required to perform a series of purification treatments on the introduced air.

[0003] For example, the utility model patent with the application number 202220720902.2 discloses a device for filtering and treating impurities in a central fresh air duct, including a support pipe. Along the gas flow direction in the support pipe, a delay part and a filtration part are sequentially arranged. A baffle plate is slidably connected at the outlet of the delay part, and there is a force for pushing the baffle plate to cover the outlet of the delay part between the baffle plate and the delay part.

[0004] Based on the prior art, it is found that most of the impurity filtering devices for fresh air ducts have a single structure. The filtering components are generally fixedly installed inside the device, making it inconvenient to disassemble the filtering components from the device body when cleaning the filtering components, and the practicality is not high. Moreover, during daily use, the device does not have a self-cleaning function for the filtering components, resulting in a relatively fast clogging speed of the filtering components. It is necessary to frequently disassemble and clean the filtering components, which is inconvenient to use. Therefore, the utility model proposes an impurity filtering device for fresh air ducts to solve the problems existing in the prior art. Summary of the Utility Model

[0005] Aiming at the above problems, the purpose of the utility model is to propose an impurity filtering device for fresh air ducts, which solves the problems that the filtering components of the existing impurity filtering devices for fresh air ducts are generally fixedly installed inside the device, making it inconvenient to disassemble the filtering components from the device body when cleaning the filtering components, and the device does not have a self-cleaning function for the filtering components, resulting in a relatively fast clogging speed of the filtering components.

[0006] To achieve the object of the present utility model, the present utility model is realized through the following technical solutions: An impurity filtering device for a fresh air duct, comprising a duct body, a filter screen plate is fitted and inserted inside the duct body, a socket fixedly connected to the top of the filter screen plate and fitted and inserted into the top of the duct body, the socket and the duct body are fixedly connected by a clamping mechanism, a drainage fan is fixedly connected to one side of the duct body away from the filter screen plate, a lifting plate driven by a lifting adjustment mechanism to lift is arranged between the filter screen plate and the drainage fan, concave seats are connected to one side of the lifting plate close to the filter screen plate through symmetrically distributed spring telescopic rods, a cleaning brush is fixedly connected to the inside of the concave seats, and the bristles of the cleaning brush are in contact with the filter screen plate.

[0007] A further improvement lies in that: a material leakage through groove located below the concave seat is opened at the bottom end of the duct body, and an impurity collection box located below the material leakage through groove is fixedly connected to the bottom end of the duct body.

[0008] A further improvement lies in that: a slot adapted to the socket is opened at the top end of the duct body, the clamping mechanism includes clamping columns slidably penetrating through both side walls of the socket and driven to displace by a knob, and clamping holes opened on both inner side walls of the slot and adapted to the clamping columns.

[0009] A further improvement lies in that: a cavity is opened inside the socket, a rotating shaft is rotatably connected to the inside of the cavity, a gear is fixedly sleeved on the outside of the rotating shaft, the top end of the rotating shaft penetrates through the top end of the socket through a bearing and is fixedly connected to the knob, racks fixedly connected to the two clamping columns are respectively engaged on the front and rear sides of the gear, and one end of the rack away from the clamping column is fixedly connected to the inner side wall of the cavity through a limiting spring.

[0010] A further improvement lies in that: a first sealing ring is fixedly connected to the inner wall of the slot, a first sealing groove adapted to the first sealing ring is fixedly connected to the outer wall of the socket, a second sealing groove is jointly opened at the bottom end and the front and rear outer side walls of the filter screen plate, and a second sealing ring adapted to the second sealing groove is fixedly connected to the inner wall of the duct body.

[0011] A further improvement lies in that: the lifting adjustment mechanism includes a lead screw rotatably connected to the inside of the duct body and driven to rotate by a motor, a threaded block fixedly connected to the lifting plate is threadedly sleeved on the lead screw, and limiting sliding grooves adapted to the lifting plate are opened on both inner side walls of the front and rear sides of the duct body.

[0012] A further improvement lies in that: the spring telescopic rod includes a telescopic tube fixedly connected to the lifting plate and a sliding rod fixedly connected to the concave seat, one end of the sliding rod away from the concave seat is slidably arranged inside the telescopic tube and fixedly connected to the inner side wall of the telescopic tube through a linear spring.

[0013] The beneficial effects of the present utility model are as follows: The present utility model includes a pipeline body. During the daily use of the filter screen plate, the lifting and adjusting mechanism is used to drive the lifting plate to move up and down inside the pipeline body, so as to drive the cleaning brush inside the concave seat to brush the surface of the filter screen plate up and down for cleaning, which can effectively delay the speed at which the surface of the filter screen plate is blocked by impurities, thus avoiding the problem of frequent disassembly and cleaning of the filter screen plate. It is practical and convenient. At the same time, by fitting and inserting a socket at the top end of the pipeline body, fixing the filter screen plate at the bottom end of the socket, and using the clamping mechanism to clamp and fix between the socket and the pipeline body, the filter screen plate can be conveniently disassembled from the inside of the pipeline body when cleaning is required, with high practicality. Brief Description of the Drawings

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a sectional view of the present utility model;

[0016] Figure 3 is the present utility model Figure 2 enlarged view of part A therein;

[0017] Figure 4 is the present utility model Figure 2 enlarged view of part B therein;

[0018] Figure 5 is the present utility model Figure 2 enlarged view of part C therein;

[0019] Figure 6 is a partial sectional schematic view of the socket of the present utility model from a top-down perspective.

[0020] Wherein: 1. Pipeline body; 2. Filter screen plate; 3. Socket; 4. Drainage fan; 5. Lifting plate; 6. Spring telescopic rod; 7. Concave seat; 8. Cleaning brush; 9. Leakage material through slot; 10. Impurity collection box; 11. Slot; 12. Knob; 13. Clamping post; 14. Clamping hole; 15. Cavity; 16. Rotating shaft; 17. Gear; 18. Rack; 19. Limiting spring; 20. First sealing ring; 21. First sealing groove; 22. Second sealing groove; 23. Second sealing ring; 24. Motor; 25. Lead screw; 26. Threaded block; 27. Limiting sliding groove; 601. Telescopic tube; 602. Slide bar. Detailed Embodiment

[0021] In order to deepen the understanding of the present utility model, the following will further elaborate on the present utility model in combination with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.

[0022] According to Figure 1, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown in the figures, the present embodiment provides an impurity filtering device for a fresh air duct, including a duct body 1 connected to a fresh air system and a filter mesh plate 2 fitted and inserted into the interior of the duct body 1. The filter mesh plate 2 is used to filter and intercept impurities in the air flowing through the duct body 1. A socket 3 is welded and fixed to the top end of the filter mesh plate 2, and the socket 3 is fitted and inserted into the top end of the duct body 1. Pull rings are symmetrically fixed to the top end of the socket 3. A slot 11 is formed in the top end of the duct body 1, and the slot 11 is adapted to the socket 3 for the socket 3 to be fitted and inserted. The socket 3 and the duct body 1 are fixedly connected by a clamping mechanism, so that the socket 3 can be easily fixed in the slot 11. A drainage fan 4 is fixed to the left side inside the duct body 1 by bolts, which is used to draw the air inside the duct body 1 from left to right. By fitting and inserting the socket 3 into the top end of the duct body 1, fixing the filter mesh plate 2 to the bottom end of the socket 3, and simultaneously using the clamping mechanism to fixedly connect the socket 3 and the duct body 1, the filter mesh plate 2 can be conveniently detached from the interior of the duct body 1 when cleaning is required;

[0023] A lifting plate 5 is provided between the filter mesh plate 2 and the drainage fan 4. The lifting plate 5 is slidably arranged inside the duct body 1 and is driven to lift by a lifting adjustment mechanism. Limit sliding grooves 27 adapted to the lifting plate 5 are formed on the inner walls of the front and rear sides of the duct body 1. The front and rear ends of the lifting plate 5 respectively extend into the limit sliding grooves 27 on the front and rear sides, which play a role in limiting the lifting plate 5 and making its lifting process more stable. Spring telescopic rods 6 are symmetrically fixed to the right side wall of the lifting plate 5. The right ends of the spring telescopic rods 6 are fixed to a concave seat 7. A cleaning brush 8 is fixed to the inside of the concave seat 7 by bolts. The bristles of the cleaning brush 8 extend outside the concave seat 7 and contact the filter mesh plate 2. Under the action of the spring telescopic rods 6, an elastic pushing force can be provided for the concave seat 7, so that the bristles of the cleaning brush 8 can contact the surface of the filter mesh plate 2 for brushing and cleaning. During the daily use of the filter mesh plate 2, the lifting adjustment mechanism is used to drive the lifting plate 5 to move up and down inside the duct body 1, so as to drive the cleaning brush 8 inside the concave seat 7 to brush the surface of the filter mesh plate 2 up and down, which can effectively delay the speed of the surface of the filter mesh plate 2 being blocked by impurities.

[0024] A material leakage through groove 9 is formed at the bottom end of the duct body 1, and the material leakage through groove 9 is located below the concave seat 7, which is convenient for part of the impurities falling off during cleaning to fall out of the duct body 1. An impurity collection box 10 is fixed to the bottom end of the duct body 1 by bolts, and the impurity collection box 10 is located below the material leakage through groove 9, which is used to receive the impurities falling out of the material leakage through groove 9 and play a role in collection.

[0025] The clamping mechanism includes a knob 12, clamping posts 13 and clamping holes 14. There are two groups of clamping posts 13 which respectively slide through the left and right side walls of the socket 3. The knob 12 is rotatably connected to the top of the socket 3. The two groups of clamping posts 13 are driven by the knob 12 and displace towards each other or in opposite directions. There are two groups of clamping holes 14 which are respectively opened on the inner walls of the left and right sides of the slot 11. The clamping posts 13 are adapted to the clamping holes 14. By rotating the knob 12 to drive the two groups of clamping posts 13 to displace in opposite directions and insert into the clamping holes 14, the clamping and fixing of the socket 3 are realized. Rotating the knob 12 in the reverse direction drives the two groups of clamping posts 13 to displace towards each other, and the clamping and fixing of the socket 3 can be released.

[0026] A cavity 15 located below the knob 12 is opened at the middle position inside the socket 3. A rotating shaft 16 is rotatably connected to the inside of the cavity 15 through a bearing. A gear 17 is fixedly sleeved on the outside of the rotating shaft 16. The top of the rotating shaft 16 passes through the top of the socket 3 through a bearing and is fixedly connected to the knob 12 by a screw. Both the front and rear sides of the gear 17 are meshed with a rack 18. The two groups of racks 18 are respectively fixedly connected to the two groups of clamping posts 13. By driving the rotating shaft 16 to rotate through the knob 12, the rotating shaft 16 drives the gear 17 to rotate, the gear 17 drives the meshed rack 18 to rotate, and then the rack 18 drives the clamping post 13 to displace. One end of the rack 18 far from the clamping post 13 is fixedly connected to the inner side wall of the cavity 15 through a limiting spring 19. The limiting spring 19 provides an elastic ejecting force for the rack 18, so as to drive the clamping post 13 to eject and insert into the clamping hole 14.

[0027] A first sealing ring 20 is fixed on the inner wall of the slot 11, and a first sealing groove 21 adapted to the first sealing ring 20 is fixed on the outer wall of the socket 3. When the socket 3 is inserted into the slot 11, the first sealing ring 20 is inserted into the first sealing groove 21 to improve the sealing performance. A second sealing groove 22 is jointly opened at the bottom end and the front and rear outer walls of the filter screen plate 2. A second sealing ring 23 adapted to the second sealing groove 22 is fixed on the inner wall of the pipe body 1. When the filter screen plate 2 is inserted into the pipe body 1, the second sealing ring 23 is inserted into the second sealing groove 22 to improve the sealing performance. And because both the first sealing ring 20 and the second sealing ring 23 are made of rubber elastic materials, they will not affect the normal plugging work of the socket 3 and the filter screen plate 2.

[0028] The lifting and adjusting mechanism includes a motor 24 and a lead screw 25. The motor 24 is fixed to the top of the pipe body 1 by bolts. The lead screw 25 is rotatably connected to the inside of the pipe body 1 through a bearing. The top of the lead screw 25 passes through the top of the pipe body 1 through a bearing and is fixedly connected to the output end of the motor 24. A threaded block 26 is threadedly sleeved on the lead screw 25, and one end of the threaded block 26 close to the lifting plate 5 is fixedly connected to the lifting plate 5 by bolts. By driving the lead screw 25 to rotate through the motor 24, the threaded block 26 threadedly sleeved on the lead screw 25 drives the lifting plate 5 to lift and displace.

[0029] The telescopic spring rod 6 includes a telescopic tube 601 and a sliding rod 602. The telescopic tube 601 is fixedly connected to the lifting plate 5, and the sliding rod 602 is fixedly connected to the concave seat 7. One end of the sliding rod 602 away from the concave seat 7 is slidably arranged inside the telescopic tube 601 and is fixedly connected to the inner side wall of the telescopic tube 601 through a linear spring. The linear spring provides an elastic ejecting force for the sliding rod 602, so as to eject the concave seat 7 from left to right.

[0030] When the impurity filtering device of the fresh air duct is actually used, the fresh air system introduces outdoor air into the duct body 1, starts the drainage fan 4 to allow the outdoor air to enter from the left side of the duct body 1 and flow to the right. When the outdoor air passes through the filter mesh plate 2, the impurities therein are filtered and intercepted, and then flow into the room from the right side of the duct body 1. During the daily use of the filter mesh plate 2, the lifting plate 5 is driven to move up and down inside the duct body 1 by the lifting adjustment mechanism. During the lifting process of the lifting plate 5, the telescopic spring rod 6 and the concave seat 7 are driven to move up and down synchronously. During the lifting process of the concave seat 7, the cleaning brush 8 inside it drives the surface of the filter mesh plate 2 to be brushed up and down for cleaning, avoiding the too fast blockage of impurities on the surface of the filter mesh plate 2, so as to extend the continuous use time of the filter mesh plate 2 and enable the impurity filtering device of the fresh air duct to have a self-cleaning function;

[0031] When the filter mesh plate 2 needs to be disassembled and cleaned after long-term use, first use the clamping mechanism to release the clamping fixation between the socket 3 and the duct body 1, and then directly pull out the socket 3 together with the filter mesh plate 2 at its bottom end from the duct body 1 to complete the convenient disassembly work of the filter mesh plate 2, and perform the corresponding cleaning work. After the cleaning is completed, insert the socket 3 together with the filter mesh plate 2 at its bottom end into the duct body 1 in an embedded manner, and use the clamping mechanism to perform the clamping fixation between the socket 3 and the duct body 1 to complete the convenient installation work of the filter mesh plate 2.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An impurity filtering device for a fresh air duct, comprising a duct body (1), characterized in that: A filter screen plate (2) is fitted and inserted inside the pipe body (1). A socket (3) which is fitted and inserted at the top end of the pipe body (1) is fixed to the top end of the filter screen plate (2). The socket (3) and the pipe body (1) are fixedly connected by a clamping mechanism. A drainage fan (4) is fixed to one side of the pipe body (1) away from the filter screen plate (2). A lifting plate (5) which is driven to lift by a lifting adjustment mechanism is arranged between the filter screen plate (2) and the drainage fan (4). Concave seats (7) are connected to one side of the lifting plate (5) close to the filter screen plate (2) by symmetrically distributed spring telescopic rods (6). A cleaning brush (8) is fixed inside the concave seats (7). The bristles of the cleaning brush (8) are in contact with the filter screen plate (2).

2. The impurity filtering device for a fresh air duct according to claim 1, characterized in that: A material leakage through groove (9) located below the concave seats (7) is formed at the bottom end of the pipe body (1). An impurity collection box (10) located below the material leakage through groove (9) is fixed to the bottom end of the pipe body (1).

3. The impurity filtering device for a fresh air duct according to claim 1, characterized in that: A slot (11) adapted to the socket (3) is formed at the top end of the pipe body (1). The clamping mechanism includes clamping columns (13) which slide through the two side walls of the socket (3) and are driven to displace by a knob (12), and clamping holes (14) which are formed in the inner walls of the two sides of the slot (11) and are adapted to the clamping columns (13).

4. The impurity filtering device for a fresh air duct according to claim 3, characterized in that: A cavity (15) is formed inside the socket (3). A rotating shaft (16) is rotatably connected inside the cavity (15). A gear (17) is sleeved and fixed on the outer part of the rotating shaft (16). The top end of the rotating shaft (16) passes through the top end of the socket (3) through a bearing and is fixed to the knob (12). Rack bars (18) which are fixedly connected to the two groups of clamping columns (13) are respectively engaged with the front and rear sides of the gear (17). One end of the rack bar (18) away from the clamping column (13) is fixedly connected to the inner side wall of the cavity (15) by a limiting spring (19).

5. The impurity filtering device for a fresh air duct according to claim 3, wherein: A first sealing ring (20) is fixed to the inner wall of the slot (11). A first sealing groove (21) adapted to the first sealing ring (20) is fixed to the outer wall of the socket (3). A second sealing groove (22) is formed at the bottom end and the outer walls of the front and rear sides of the filter screen plate (2). A second sealing ring (23) adapted to the second sealing groove (22) is fixed to the inner wall of the pipe body (1).

6. The impurity filtering device for a fresh air duct according to claim 1, characterized in that: The lifting adjustment mechanism includes a lead screw (25) which is rotatably connected inside the pipe body (1) and is driven to rotate by a motor (24). A threaded block (26) which is fixedly connected to the lifting plate (5) is sleeved on the lead screw (25). Limiting sliding grooves (27) adapted to the lifting plate (5) are formed in the inner walls of the front and rear sides of the pipe body (1).

7. The impurity filtering device for a fresh air duct according to claim 1, wherein: The spring telescopic rod (6) includes a telescopic tube (601) which is fixedly connected to the lifting plate (5) and a sliding rod (602) which is fixedly connected to the concave seat (7). One end of the sliding rod (602) away from the concave seat (7) is slidably arranged inside the telescopic tube (601) and is fixedly connected to the inner side wall of the telescopic tube (601) by a linear spring.

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