Filter bin structure of a fresh air system

Abstract

The utility model provides a kind of filter bin structure of fresh air system, it is related to fresh air system technical field, including alternate filter bin, the inside of alternate filter bin is provided with filter mechanism, the filter mechanism includes sealing frame and electric push rod fixed in alternate filter bin inner wall, the telescopic end of electric push rod is fixed in sealing frame, the upper surface of sealing frame is fixed with trapezoidal block, the inner wall of sealing frame is equipped with two fresh air filter screen;The inside of alternate filter bin is provided with two symmetrical limiting mechanisms.The filter bin structure of fresh air system is set through filter mechanism and limiting mechanism, two fresh air filter screens can be used alternately, and fresh air system does not need to stop when replacing or cleaning one side fresh air filter screen, compared with the preparation and disassembly of longer time when replacing or cleaning existing fresh air filter screen, fresh air system can work uninterruptedly, convenient to use.

Description

Technical Field

[0001] This utility model relates to a filter chamber structure, specifically a filter chamber structure for a fresh air system, and belongs to the field of fresh air system technology. Background Technology

[0002] A fresh air system is an independent air handling system that can purify and ventilate indoor air to improve indoor air quality. It uses specialized equipment to supply air to one side of a sealed room and exhaust air to the other side, forming a "fresh air flow field" and forcibly achieving indoor and outdoor air circulation. The filter chamber of the fresh air system is a crucial component, which mainly undertakes the function of purifying and filtering the air entering the room.

[0003] Patent CN208952380U discloses an installation structure for a fresh air system filter. This device allows the operator to pull the installation frame out of the slide from the outside, making it convenient and quick to clean the filter. The filter is detachably connected to the installation frame through the first and second ring plates, making it easy for the operator to replace the filter.

[0004] However, in the implementation of the above-mentioned patented technical solution, the fresh air system needs to be shut down for a long time when the filter needs to be replaced or cleaned. When the fresh air system is used for a long time, the filter will become clogged. At this time, the fresh air system needs to be shut down and the filter needs to be cleaned or replaced. In addition, before the filter is cleaned or replaced, staff need to set up ladders, disassemble the outer casing, etc., which takes up a lot of time and makes the fresh air system shut down for a long time, affecting its use.

[0005] Therefore, a filter chamber structure for a fresh air system is proposed here. Utility Model Content

[0006] This invention proposes a filter chamber structure for a fresh air system to solve the problem that existing fresh air systems require a long downtime when the filter needs to be replaced or cleaned.

[0007] This utility model is achieved through the following technical solution: a filter chamber structure for a fresh air system, including an alternating filter chamber, wherein a filter mechanism is provided inside the alternating filter chamber, the filter mechanism includes a sealing frame and an electric push rod fixed to the inner wall of the alternating filter chamber, the sealing frame is fixed to the telescopic end of the electric push rod, a trapezoidal block is fixed on the upper surface of the sealing frame, and two fresh air filters are installed on the inner wall of the sealing frame. The alternating filter chamber is internally equipped with two symmetrical limiting mechanisms. Each limiting mechanism includes a wedge block and a mounting plate slidably connected to the inner wall of the alternating filter chamber. The wedge block is adapted to the trapezoidal block. A limiting plate is fixed to the outer surface of the wedge block. The limiting plate is adapted to the mounting plate. A sliding sleeve is fixed to the outer surface of the limiting plate. A second spring is fixed to the outer surface of the sliding sleeve. The end of the second spring away from the sliding sleeve is fixed to the inner wall of the alternating filter chamber.

[0008] Specifically, the inner wall of the sealing frame is slidably connected to two circular inserts, each of which is adapted to one of the two fresh air filters. The outer surfaces of both circular inserts are fixed with anti-slip operating blocks, which are slidably connected to the inner wall of the sealing frame. The outer surfaces of both circular inserts are fixed with first springs, the ends of which are furthest from the circular inserts are fixed to the inner wall of the sealing frame. The first springs are always in a compressed state, ensuring that the circular inserts do not detach from the fresh air filters when inserted without external force.

[0009] Specifically, two positioning blocks are fixed on the outer surface of each of the two fresh air filters. The positioning blocks are adapted to the sealing frame. The sealing frame has four positioning grooves that are adapted to the positioning blocks. When the fresh air filter is installed, the positioning blocks are inserted into the positioning grooves of the sealing frame to position the fresh air filter.

[0010] Specifically, a fixing plate is slidably connected to the inner wall of the trapezoidal block. The fixing plate is fixed to the inner wall of the alternating filter chamber and serves as an auxiliary guide for the movement of the trapezoidal block and the sealing frame.

[0011] Specifically, a guide rod is slidably connected to the inner wall of the sliding sleeve. The guide rod is fixed to the inner wall of the alternating filter chamber and guides the movement of the sliding sleeve.

[0012] Preferably, the limiting mechanism further includes an L-shaped baffle fixed to the outer surface of the alternating filter chamber. The L-shaped baffle is adapted to the mounting plate and acts as a barrier for the installed mounting plate to prevent the mounting plate from moving out of the alternating filter chamber in the horizontal direction.

[0013] Preferably, the outer surface of the alternating filter chamber is fixed with two symmetrical mounting frames, and fresh air ducts are installed on the outer surface of both mounting frames. A first flange is fixed on the outer surface of the mounting frame, and a second flange is fixed on the outer surface of both fresh air ducts. The first flange and the second flange are adapted to each other and are installed by bolts.

[0014] This utility model provides a filter chamber structure for a fresh air system, which has the following beneficial effects: The filter chamber structure of this fresh air system, through the setting of the filtration mechanism and the limiting mechanism, allows two fresh air filters to be used alternately. Furthermore, the fresh air system can be operated without stopping when replacing or cleaning one side of the fresh air filter. Compared with the existing fresh air filter replacement or cleaning, which takes a long time for preparation and disassembly, this system can operate continuously and is easy to use.

[0015] The filter chamber structure of this fresh air system uses a limiting plate and a mounting plate to move the fresh air filter on the other side to the mounting frame position when one side of the fresh air filter becomes clogged. At this time, the limiting plate at the clogged fresh air filter position is pushed away from the mounting plate by the trapezoidal block. The staff can only remove the mounting plate at that position and can observe the mounting plate that needs to be removed from the outside, which makes it convenient for the staff to clean or replace the fresh air filter on that side.

[0016] Other advantages, objectives and features of this application will be set forth in part in the description which follows, and in part will be obvious to those skilled in the art based on an examination of the following, or may be taught from practice of this application. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram showing the disassembled structure of the alternating filter chamber, mounting plate, and fresh air duct of this utility model; Figure 3 This is a schematic diagram of the internal structure of the alternating filter chamber of this utility model; Figure 4 This is a schematic diagram of the disassembled structure of the trapezoidal block and wedge block of this utility model; Figure 5 This is a schematic diagram showing the disassembled structure of the sealing frame and the fresh air filter of this utility model.

[0018] Explanation of reference numerals in the attached figures 1. Alternating filter chambers; 2. Filtering mechanism; 21. Sealing frame; 22. Trapezoidal block; 23. Fresh air filter; 24. Circular insert block; 25. Anti-slip operating block; 26. First spring; 27. Positioning block; 28. Fixing plate; 29. ​​Electric push rod; 3. Limiting mechanism; 31. Mounting plate; 32. Wedge block; 33. Limiting plate; 34. Sliding sleeve; 35. Second spring; 36. Guide rod; 37. L-shaped baffle; 4. Mounting frame; 41. First flange; 5. Fresh air duct; 51. Second flange. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0020] Please see Figures 1-5 The present invention proposes the following implementation scheme: a filter chamber structure for a fresh air system, including an alternating filter chamber 1, a filter mechanism 2 is provided inside the alternating filter chamber 1, the filter mechanism 2 includes a sealing frame 21 and an electric push rod 29 fixed to the inner wall of the alternating filter chamber 1, the sealing frame 21 is fixed to the telescopic end of the electric push rod 29, a trapezoidal block 22 is fixed on the upper surface of the sealing frame 21, and two fresh air filters 23 are installed on the inner wall of the sealing frame 21. When the fresh air filters 23 move to the middle position of the alternating filter chamber 1, they correspond to the mounting frame 4. At this time, the fresh air filters 23 provide a filtering function for the fresh air system.

[0021] Please refer to this carefully. Figure 4 and Figure 5 Two circular inserts 24 are slidably connected to the inner wall of the sealing frame 21. The two circular inserts 24 are respectively adapted to the two fresh air filters 23. The outer surface of each of the two circular inserts 24 is fixed with an anti-slip operating block 25. The two anti-slip operating blocks 25 are slidably connected to the inner wall of the sealing frame 21. The outer surface of each of the two circular inserts 24 is fixed with a first spring 26. The end of each of the two first springs 26 away from the circular inserts 24 is fixed to the inner wall of the sealing frame 21. The first springs 26 are always in a compressed state, so that the circular inserts 24 will not detach when inserted into the fresh air filters 23 without external force.

[0022] Please refer to this carefully. Figure 5 Two positioning blocks 27 are fixed on the outer surface of each of the two fresh air filters 23. The positioning blocks 27 are adapted to the sealing frame 21. The sealing frame 21 has four positioning grooves adapted to the positioning blocks 27. When the fresh air filter 23 is installed, the positioning blocks 27 are inserted into the positioning grooves of the sealing frame 21 to position the fresh air filter 23.

[0023] Please refer to this carefully. Figure 3 and Figure 4 The inner wall of the trapezoidal block 22 is slidably connected to a fixing plate 28, which is fixed to the inner wall of the alternating filter chamber 1. The fixing plate 28 serves as an auxiliary guide for the movement of the trapezoidal block 22 and the sealing frame 21.

[0024] Please refer to this carefully. Figure 3 and Figure 4The alternating filter chamber 1 is equipped with two symmetrical limiting mechanisms 3. The limiting mechanism 3 includes a wedge block 32 and a mounting plate 31 that is slidably connected to the inner wall of the alternating filter chamber 1. The wedge block 32 is adapted to the trapezoidal block 22. A limiting plate 33 is fixed on the outer surface of the wedge block 32. The limiting plate 33 is adapted to the mounting plate 31. When the limiting plate 33 is inserted into the mounting plate 31, the mounting plate 31 cannot be moved upward and disassembled.

[0025] Please refer to this carefully. Figure 4 A sliding sleeve 34 is fixed to the outer surface of the limiting plate 33, and a second spring 35 is fixed to the outer surface of the sliding sleeve 34. The end of the second spring 35 away from the sliding sleeve 34 is fixed to the inner wall of the alternating filter chamber 1. The second spring 35 is always in a compressed state. When the wedge block 32 and the limiting plate 33 are not subjected to external force, the limiting plate 33 is inserted into the mounting plate 31 under the elastic force of the second spring 35.

[0026] Please refer to this carefully. Figure 4 A guide rod 36 is slidably connected to the inner wall of the sliding sleeve 34. The guide rod 36 is fixed to the inner wall of the alternating filter chamber 1 and guides the movement of the sliding sleeve 34.

[0027] Please refer to this carefully. Figure 2 The limiting mechanism 3 also includes an L-shaped baffle 37 fixed on the outer surface of the alternating filter chamber 1. The L-shaped baffle 37 is adapted to the mounting plate 31. The L-shaped baffle 37 acts as a barrier for the mounted plate 31 after installation, preventing the mounted plate 31 from moving out of the alternating filter chamber 1 in the horizontal direction.

[0028] Please refer to this carefully. Figure 2 Two symmetrical mounting frames 4 are fixed on the outer surface of the alternating filter chamber 1. Fresh air ducts 5 are installed on the outer surface of both mounting frames 4. A first flange 41 is fixed on the outer surface of the mounting frame 4. A second flange 51 is fixed on the outer surface of both fresh air ducts 5. The first flange 41 and the second flange 51 are compatible and are installed by bolt connection.

[0029] In use, this utility model works as follows: When the fresh air system is operating, the fresh air filter 23 located in the middle of the alternating filter chamber 1 provides filtration. When the fresh air filter 23 in the middle position becomes clogged, the electric push rod 29 is extended or retracted, causing the fresh air filter 23 located on the outer side to move to the middle position. The clogged fresh air filter 23 moves to the other side, and the trapezoidal block 22 pushes the wedge block 32 on that side to move away from the mounting plate 31. The limiting plate 33 is pulled out of the mounting plate 31, and the second spring 35 is compressed. At this time, a new fresh air filter 23 provides filtration for the fresh air system. When replacing or cleaning the clogged fresh air filter 23, observe the mounting plate 31, which is separated from the limiting plate 33, from the outside. Then, move the mounting plate 31 upwards and push the anti-slip operating block 25 near the fresh air filter 23 to pull the circular insert 24 out of the fresh air filter 23. The fresh air filter 23 can then be removed from the sealing frame 21 for cleaning or replacement. Then, insert the mounting plate 31 between the alternating filter chamber 1 and the L-shaped baffle 37. Compared to the existing fresh air filter 23, which requires more time for preparation and disassembly when replacing or cleaning, this device enables the fresh air system to operate uninterruptedly.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A filter chamber structure for a fresh air system, comprising alternating filter chambers (1), characterized in that: The alternating filter chamber (1) is equipped with a filter mechanism (2). The filter mechanism (2) includes a sealing frame (21) and an electric push rod (29) fixed to the inner wall of the alternating filter chamber (1). The sealing frame (21) is fixed to the telescopic end of the electric push rod (29). A trapezoidal block (22) is fixed on the upper surface of the sealing frame (21). Two fresh air filters (23) are installed on the inner wall of the sealing frame (21). The alternating filter chamber (1) is provided with two symmetrical limiting mechanisms (3). The limiting mechanism (3) includes a wedge block (32) and an installation plate (31) slidably connected to the inner wall of the alternating filter chamber (1). The wedge block (32) is adapted to the trapezoidal block (22). A limiting plate (33) is fixed on the outer surface of the wedge block (32). The limiting plate (33) is adapted to the installation plate (31). A sliding sleeve (34) is fixed on the outer surface of the limiting plate (33). A second spring (35) is fixed on the outer surface of the sliding sleeve (34). The end of the second spring (35) away from the sliding sleeve (34) is fixed to the inner wall of the alternating filter chamber (1).

2. The filter chamber structure of a fresh air system according to claim 1, characterized in that: The inner wall of the sealing frame (21) is slidably connected to two circular inserts (24). The two circular inserts (24) are respectively adapted to two fresh air filters (23). The outer surfaces of the two circular inserts (24) are fixed with anti-slip operating blocks (25). The two anti-slip operating blocks (25) are slidably connected to the inner wall of the sealing frame (21). The outer surfaces of the two circular inserts (24) are fixed with first springs (26). The ends of the two first springs (26) away from the circular inserts (24) are fixed to the inner wall of the sealing frame (21).

3. The filter chamber structure of a fresh air system according to claim 1, characterized in that: Two positioning blocks (27) are fixed on the outer surface of each of the two fresh air filters (23), and the positioning blocks (27) are adapted to the sealing frame (21).

4. The filter chamber structure of a fresh air system according to claim 1, characterized in that: The inner wall of the trapezoidal block (22) is slidably connected to a fixing plate (28), which is fixed to the inner wall of the alternating filter chamber (1).

5. The filter chamber structure of a fresh air system according to claim 1, characterized in that: The inner wall of the sliding sleeve (34) is slidably connected to a guide rod (36), which is fixed to the inner wall of the alternating filter chamber (1).

6. The filter chamber structure of a fresh air system according to claim 1, characterized in that: The limiting mechanism (3) also includes an L-shaped baffle (37) fixed on the outer surface of the alternating filter chamber (1), which is adapted to the mounting plate (31).

7. The filter chamber structure of a fresh air system according to claim 1, characterized in that: Two symmetrical mounting frames (4) are fixed on the outer surface of the alternating filter chamber (1). Fresh air ducts (5) are installed on the outer surface of both mounting frames (4). A first flange (41) is fixed on the outer surface of the mounting frame (4), and a second flange (51) is fixed on the outer surface of both fresh air ducts (5). The first flange (41) and the second flange (51) are compatible.

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