Combined type fresh air ventilator filter screen

Abstract

The utility model relates to the technical field of air purification, and discloses a combined type fresh air machine filter screen which comprises a main body mechanism, and an auxiliary mechanism is arranged in the main body mechanism. The main body mechanism comprises a fresh air ventilator body, an air inlet pipe is arranged on the right side of the fresh air ventilator body, an air outlet pipe is arranged on the left side of the fresh air ventilator body, a mounting frame is fixedly connected to the inner wall of the right side of the fresh air ventilator body, a shell is connected into the mounting frame in a clamped mode, and a primary filter screen layer is arranged on the right side in the shell. An activated carbon filter screen layer is arranged on the left side in the shell, and a first cover plate is arranged at the front end of the mounting frame. According to the combined type fresh air machine filter screen, through cooperative use of the rotary knob and the two-way lead screw, rapid disassembly and assembly of the filter screen are achieved, the maintenance efficiency is greatly improved, a user can flexibly select and replace the primary filter screen layer, the activated carbon filter screen layer or the whole shell according to actual needs, and the air purification requirements in different scenes are met.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, specifically a combined fresh air system filter. Background Technology

[0002] A fresh air system is an effective air purification device that can circulate indoor air. On the one hand, it expels polluted indoor air to the outside, and on the other hand, it introduces fresh outdoor air into the room after sterilization, disinfection, and filtration, ensuring that the room is always filled with fresh and clean air.

[0003] During long-term use, the filters of fresh air systems are prone to clogging, requiring regular cleaning or replacement to maintain their purification effect. However, existing fresh air system filters generally suffer from problems such as difficult filter replacement, high maintenance costs, and complex operation. Filter replacement often requires professional personnel to use specialized tools, which is not only time-consuming and labor-intensive but also increases maintenance costs. In addition, the structural design of traditional fresh air system filters is not flexible enough, and filter replacement often requires the replacement of the entire filter assembly. Even if only part of the filter is damaged or clogged, the entire filter assembly needs to be replaced, resulting in a waste of resources. Utility Model Content

[0004] The purpose of this invention is to provide a combined fresh air system filter to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a combined fresh air filter, including a main body mechanism, wherein an auxiliary mechanism is provided inside the main body mechanism;

[0006] The main structure includes a fresh air unit body. An air inlet pipe is provided on the right side of the fresh air unit body, and an air outlet pipe is provided on the left side of the fresh air unit body. An installation frame is fixedly connected to the inner wall of the right side of the fresh air unit body. A housing is engaged and connected within the installation frame. A pre-filter layer is provided on the right side of the inside of the housing, and an activated carbon filter layer is provided on the left side of the inside of the housing. A first cover plate is provided at the front end of the installation frame. A connecting ring is fixedly connected to the rear of the fresh air unit body. A bidirectional lead screw is rotatably connected within the connecting ring. A first connecting block and a second connecting block are threaded to the left and right sides of the surface of the bidirectional lead screw, respectively. A locking block is fixedly connected to the left and right sides of both the first and second connecting blocks. The same spring is fixedly connected to the opposite side of the first and second connecting blocks. A sealing frame is engaged and connected to the outer side of the connecting ring.

[0007] Preferably, both the surface of the mounting frame and the surface of the housing are provided with multiple perforated ventilation holes.

[0008] Furthermore, both the mounting frame and the housing have multiple perforated ventilation holes. These ventilation holes allow air to circulate, enabling fresh air to enter through the air inlet duct, be filtered by the filter layer, and then be discharged through the air outlet duct. The ventilation holes ensure efficient air circulation while maintaining the breathability of the filter structure.

[0009] Preferably, a sealing ring is fixedly connected to the rear of the housing, and the sealing ring has slots on both the left and right sides that are adapted to the locking blocks. The two locking blocks are engaged and connected in the slots on both the left and right sides of the sealing ring.

[0010] Furthermore, the slots on both sides of the sealing ring are used to receive the card blocks. This interlocking connection not only stabilizes the position of the housing, but also enhances the sealing between the housing and the mounting frame through the sealing ring, preventing unfiltered air from directly entering the fresh air unit through the gaps.

[0011] Preferably, a knob is fixedly connected to the right side of the bidirectional lead screw, and four bolts are threaded to the front end of the first cover plate. The first cover plate is fixedly connected to the front end of the fresh air unit body through the four bolts threaded to the front end.

[0012] Furthermore, the knob allows users to manually rotate the two-way lead screw to adjust the distance between the first and second connecting blocks, which is used to fix the housing. The first cover plate is fixedly connected to the front end of the fresh air unit body by four bolts, ensuring the stability and sealing of the cover plate.

[0013] Preferably, the auxiliary mechanism includes a connecting frame, with HEPA filter layers engaged on both the left and right sides inside the connecting frame, and a second cover plate provided at the front end of the connecting frame.

[0014] Furthermore, the auxiliary mechanism includes a connecting frame and a HEPA filter layer for deep air purification. In the combined fresh air system filter, the auxiliary mechanism serves as an independent purification module, which can be flexibly installed or removed according to actual needs. When users require further improvement in air purification, especially for efficient filtration of fine particulate matter, bacteria, and viruses in the air, the auxiliary mechanism can be installed. The HEPA filter layer, with its excellent filtration performance, can effectively capture these fine pollutants, ensuring the cleanliness of indoor air. At the same time, the auxiliary mechanism also considers the convenience of maintenance and replacement. Through the fixing method of the second cover plate and bolts, users can easily disassemble and install the auxiliary mechanism for filter replacement or cleaning. As an independent module, the auxiliary mechanism can be flexibly installed or removed according to user needs and changes in scenarios, which not only improves the applicability of the equipment but also reduces maintenance costs.

[0015] Preferably, the connecting frame is fixedly connected to the body of the fresh air unit, and the surface of the connecting frame is evenly provided with a plurality of hollowed-out ventilation holes.

[0016] Furthermore, the connecting frame is fixedly connected to the main body of the fresh air unit, ensuring the stability of the auxiliary mechanism. The ventilation holes on the surface of the connecting frame are also to ensure air circulation efficiency, so that the air filtered by the HEPA filter layer can smoothly enter the subsequent parts of the fresh air unit.

[0017] Preferably, the second cover plate has bolts threaded to all four corners of its front end, and the second cover plate is fixedly connected to the front end of the fresh air unit body through the threads of the four corner threads.

[0018] Furthermore, the second cover plate is also fixedly connected to the front end of the fresh air unit body by bolts with four-corner threaded connections at the front end. This fixing method not only stabilizes the position of the cover plate, but also ensures the sealing of the auxiliary mechanism, preventing unfiltered air from directly entering the subsequent parts of the fresh air unit.

[0019] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0020] First, align the housing with the mounting frame and push it in smoothly until fully in place. Hold the knob and turn it clockwise to move the bidirectional screw, first connecting block, and second connecting block outwards until the locking block engages in the groove of the sealing ring. Secure the housing and lock the sealing frame behind the air purifier body, ensuring a good seal. Connect the power supply and start the air purifier body. When the filter inside the air purifier body needs replacement, ensure the air purifier body is off and the power is disconnected. Prepare the filter assembly to be replaced or maintained, including the housing containing the pre-filter layer and activated carbon filter layer. Gently remove the sealing frame from the rear of the air purifier body to expose the bidirectional screw and connecting ring. Hold the knob and turn it counterclockwise to rotate the bidirectional screw. Due to the threaded design of the bidirectional screw, the first and second connecting blocks will move inwards simultaneously. A spring ensures smooth movement of the first and second connecting blocks. As the first and second connecting blocks move, the locking blocks connected to each block will disengage from the slots on both sides of the sealing ring, thus releasing the housing from its fixation. Gently grasp the protruding part at the front of the housing and steadily pull the housing out of the mounting frame, taking care to avoid damaging the housing or surrounding components. Remove the pre-filter and activated carbon filter layers inside the housing, and clean or replace them with new ones. Ensure that the new pre-filter and activated carbon filter layers are correctly installed inside the housing, with no misalignment or overlap between the filters. Repeat the above installation method to complete the installation of the housing. The use of the knob and the two-way screw enables quick disassembly and installation of the filters, greatly improving maintenance efficiency. Users can flexibly choose to replace the pre-filter, activated carbon filter, or the entire housing according to their actual needs, meeting the air purification requirements of different scenarios.

[0021] Secondly, the auxiliary mechanism of this utility model includes a connecting frame and a HEPA filter layer for deep air purification. In the combined fresh air system filter, the auxiliary mechanism is an independent purification module that can be flexibly installed or disassembled according to actual needs. When users need to further improve the air purification effect, especially for efficient filtration of fine particulate matter, bacteria, viruses, etc. in the air, the auxiliary mechanism can be installed. The HEPA filter layer, with its excellent filtration performance, can effectively capture these fine pollutants and ensure the cleanliness of indoor air. At the same time, the auxiliary mechanism also takes into account the convenience of maintenance and replacement. Through the fixing method of the second cover plate and bolts, users can easily disassemble and install the auxiliary mechanism for filter replacement or cleaning. As an independent module, the auxiliary mechanism can be flexibly installed or disassembled according to user needs and changes in scenarios, which not only improves the applicability of the equipment but also reduces maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0025] Figure 4 This is a schematic diagram of the main structure of the present utility model.

[0026] The components are as follows: 1. Main structure; 101. Fresh air unit body; 102. Air inlet pipe; 103. Air outlet pipe; 104. Mounting frame; 105. Housing; 106. Pre-filter layer; 107. Activated carbon filter layer; 108. First cover plate; 109. Connecting ring; 110. Two-way lead screw; 111. First connecting block; 112. Second connecting block; 113. Locking block; 114. Spring; 115. Sealing frame; 116. Sealing ring; 117. Knob; 2. Auxiliary structure; 201. Connecting frame; 202. HEPA filter layer; 203. Second cover plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides the following technical solution:

[0029] Example 1

[0030] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A combined fresh air system filter includes a main body 1, and an auxiliary body 2 is provided inside the main body 1;

[0031] The main structure 1 includes a fresh air unit body 101. An air inlet pipe 102 is located on the right side of the fresh air unit body 101, and an air outlet pipe 103 is located on the left side. A mounting frame 104 is fixedly connected to the inner wall of the right side of the fresh air unit body 101. A housing 105 is snapped into the mounting frame 104. A primary filter layer 106 is located on the right side of the interior of the housing 105, and an activated carbon filter layer 107 is located on the left side of the interior of the housing 105. A first cover plate 108 is located at the front end of the mounting frame 104. A connecting ring 109 is fixedly connected to the rear of the body 101. A bidirectional lead screw 110 is rotatably connected inside the connecting ring 109. A first connecting block 111 and a second connecting block 112 are threadedly connected to the left and right sides of the surface of the bidirectional lead screw 110, respectively. A locking block 113 is fixedly connected to both the left and right sides of the first connecting block 111 and the second connecting block 112. The same spring 114 is fixedly connected to the opposite side of the first connecting block 111 and the second connecting block 112. A sealing frame 115 is engaged with the outside of the connecting ring 109.

[0032] Specifically, both the surface of the mounting frame 104 and the surface of the housing 105 have multiple perforated ventilation holes.

[0033] Specifically, a sealing ring 116 is fixedly connected to the rear of the housing 105. The sealing ring 116 has slots on both the left and right sides that are compatible with the locking blocks 113. The two locking blocks 113 are engaged and connected in the slots on both the left and right sides of the sealing ring 116.

[0034] Specifically, a knob 117 is fixedly connected to the right side of the bidirectional lead screw 110, and four bolts are threaded to the front end of the first cover plate 108. The first cover plate 108 is fixedly connected to the front end of the fresh air unit body 101 through the four bolts threaded to the front end.

[0035] Using the above technical solution, align the housing 105 with the mounting frame 104 and push it in smoothly until it is fully in place. Hold the knob 117 and turn it clockwise to cause the bidirectional lead screw 110 to move the first connecting block 111 and the second connecting block 112 outwards until the locking block 113 engages in the slot of the sealing ring 116, thus fixing the housing 105. Secure the sealing frame 115 to the rear of the fresh air unit body 101, ensuring a good seal. Connect the power supply and start the fresh air unit body 101. The internal wiring connections of the fresh air unit body 101 are well-known in the art and will not be elaborated further here. When the fresh air unit... When the filter inside the main body 101 needs to be replaced, ensure that the main body 101 of the fresh air unit is turned off and the power is disconnected. Prepare the filter assembly to be replaced or maintained, including the housing 105 containing the pre-filter layer 106 and the activated carbon filter layer 107. Gently remove the sealing frame 115 from the back of the main body 101 to expose the bidirectional lead screw 110 and the connecting ring 109. Hold the knob 117 and turn it counterclockwise to rotate the bidirectional lead screw 110. Due to the threaded design of the bidirectional lead screw 110, the first connecting block 111 and the second connecting block 112 will move inward simultaneously, driven by the spring 11. 4. Ensure the smooth movement of the first connecting block 111 and the second connecting block 112. As the first connecting block 111 and the second connecting block 112 move, the locking blocks 113 connected to the first connecting block 111 and the second connecting block 112 will disengage from the locking grooves on both sides of the sealing ring 116, thereby releasing the fixation on the housing 105. Gently grasp the protruding part at the front end of the housing 105 and smoothly pull the housing 105 out of the mounting frame 104, taking care to avoid damaging the housing 105 or surrounding parts. Remove the pre-filter layer 106 and the activated carbon filter layer 107 inside the housing 105. Clean or replace the mesh layer 106 and activated carbon filter layer 107 with new filters, ensuring that the new pre-filter layer 106 and activated carbon filter layer 107 are correctly installed inside the housing 105, and that there is no misalignment or overlap between the filters. Repeat the above installation method to complete the installation of the housing 105. The quick disassembly and installation of the filters are achieved by using the knob 117 and the two-way screw 110, which greatly improves maintenance efficiency. Users can flexibly choose to replace the pre-filter layer 106, activated carbon filter layer 107 or the entire housing 105 according to actual needs to meet the air purification needs of different scenarios.

[0036] Example 2

[0037] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 Furthermore, based on Embodiment 1, the auxiliary mechanism 2 includes a connecting frame 201, with HEPA filter layers 202 engaged on both the left and right sides inside the connecting frame 201, and a second cover plate 203 provided at the front end of the connecting frame 201.

[0038] Specifically, the connecting frame 201 is fixedly connected inside the fresh air unit body 101, and multiple hollow ventilation holes are evenly opened on the surface of the connecting frame 201.

[0039] Specifically, bolts are threaded to the four corners of the front end of the second cover plate 203, and the second cover plate 203 is fixedly connected to the front end of the fresh air unit body 101 through the threads of the four corners of the front end.

[0040] Through the above technical solution, the auxiliary mechanism 2 includes a connecting frame 201 and a HEPA filter layer 202, which is used for deep air purification. In the combined fresh air system filter, the auxiliary mechanism 2 is an independent purification module that can be flexibly installed or disassembled according to actual needs. When users need to further improve the air purification effect, especially for efficient filtration of fine particulate matter, bacteria, viruses, etc. in the air, the auxiliary mechanism 2 can be installed. The HEPA filter layer 202, with its excellent filtration performance, can effectively capture these fine pollutants and ensure the cleanliness of indoor air. At the same time, the auxiliary mechanism 2 also takes into account the convenience of maintenance and replacement. Through the fixing method of the second cover plate 203 and bolts, users can easily disassemble and install the auxiliary mechanism 2 for filter replacement or cleaning. As an independent module, the auxiliary mechanism 2 can be flexibly installed or disassembled according to user needs and changes in scenarios, which not only improves the applicability of the equipment but also reduces maintenance costs.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined fresh air system filter, comprising a main body (1), characterized in that: The main body (1) is equipped with an auxiliary mechanism (2); The main structure (1) includes a fresh air unit body (101), an air inlet pipe (102) is provided on the right side of the fresh air unit body (101), an air outlet pipe (103) is provided on the left side of the fresh air unit body (101), an installation frame (104) is fixedly connected to the inner wall of the right side of the fresh air unit body (101), a housing (105) is snapped into the installation frame (104), a primary filter layer (106) is provided on the right side of the inside of the housing (105), an activated carbon filter layer (107) is provided on the left side of the inside of the housing (105), and a first cover plate (108) is provided at the front end of the installation frame (104). A connecting ring (109) is fixedly connected to the rear of the fresh air unit body (101). A bidirectional lead screw (110) is rotatably connected inside the connecting ring (109). A first connecting block (111) and a second connecting block (112) are threadedly connected to the left and right sides of the surface of the bidirectional lead screw (110), respectively. A locking block (113) is fixedly connected to the left and right sides of the first connecting block (111) and the second connecting block (112). The same spring (114) is fixedly connected to the opposite side of the first connecting block (111) and the second connecting block (112). A sealing frame (115) is engaged with the outside of the connecting ring (109).

2. The combined fresh air system filter according to claim 1, characterized in that: The mounting frame (104) and the housing (105) are both provided with multiple perforated ventilation holes.

3. The combined fresh air system filter according to claim 1, characterized in that: A sealing ring (116) is fixedly connected to the rear of the housing (105). The sealing ring (116) has slots on both the left and right sides that are compatible with the locking blocks (113). The two locking blocks (113) are engaged and connected in the slots on both the left and right sides of the sealing ring (116).

4. The combined fresh air system filter according to claim 1, characterized in that: A knob (117) is fixedly connected to the right side of the bidirectional lead screw (110), and four bolts are threaded to the front end of the first cover plate (108). The first cover plate (108) is fixedly connected to the front end of the fresh air unit body (101) through the four bolts threaded to the front end.

5. A combined fresh air system filter according to claim 1, characterized in that: The auxiliary mechanism (2) includes a connecting frame (201), and HEPA filter layers (202) are snapped into the left and right sides inside the connecting frame (201). A second cover plate (203) is provided at the front end of the connecting frame (201).

6. A combined fresh air system filter according to claim 5, characterized in that: The connecting frame (201) is fixedly connected inside the fresh air unit body (101), and the surface of the connecting frame (201) is evenly provided with multiple hollowed-out ventilation holes.

7. A combined fresh air system filter according to claim 5, characterized in that: The second cover plate (203) has bolts threaded to the four corners of its front end. The second cover plate (203) is fixedly connected to the front end of the fresh air unit body (101) through the threads of the four corners of its front end.

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