Multi-filtering primary and medium efficiency fan box

Abstract

The utility model discloses a multi-filtration primary and medium efficiency fan box, which comprises a box body, a centrifugal fan, a fixed frame, a first movable frame, a primary filter, a second movable frame, a medium efficiency filter, a first elastic component and a second elastic component, the centrifugal fan is in bolted connection inside the box body, the fixed frame is arranged on the inner side of the box body, and the first movable frame is arranged on the inner side of the box body. The first movable frame is inserted into the inner sides of the two fixed frames, the upper end and the lower end of the first movable frame are connected with rolling wheels through bearings, the primary filter is inserted into the first movable frame, the second movable frame is arranged in the box body, the medium-efficiency filter is inserted into the second movable frame, and the first elastic assembly is arranged on the inner side of the box body. The second elastic assembly is arranged in the first moving frame. Through the arrangement of the fixed frame, the first movable frame and the second movable frame, the filter is convenient to disassemble and clean under the condition that the use of the fan box is not influenced, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-stage filtration primary and secondary efficiency fan boxes, specifically a multi-stage filtration primary and secondary efficiency fan box. Background Technology

[0002] Multi-stage filtration fan boxes are air purification devices that combine the functions of pre-filters and medium-efficiency filters to remove particulate matter and pollutants from the air. They are widely used in various places requiring air purification, such as central air conditioning systems in shopping malls, hospitals, cleanrooms, pharmaceutical factories, and laboratories. They effectively remove particulate matter and pollutants from the air, providing a cleaner and more comfortable environment for these places. However, during use, multi-stage filtration fan boxes inevitably accumulate a significant amount of particulate matter and pollutants, requiring disassembly and cleaning. Disassembly is time-consuming and labor-intensive due to the high friction between the filters and the box body, presenting certain drawbacks. Therefore, we have proposed a multi-stage filtration fan box solution. Utility Model Content

[0003] The present invention aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a multi-stage filtration primary and secondary efficiency fan box, including a box body, a centrifugal fan, a fixed frame, a first movable frame, a primary filter, a second movable frame, a secondary efficiency filter, a first elastic component, and a second elastic component. The front end of the box body is provided with a fan inspection port and a filter inspection port. The centrifugal fan is bolted to the inside of the box body. The fixed frame is located on the inner side of the box body. The first movable frame is inserted through the inner sides of the two fixed frames. Rollers are connected to the upper and lower ends of the first movable frame by bearings. Handles are provided at the front and rear ends of the first movable frame. The primary filter is inserted through the first movable frame. The second movable frame is located inside the box body. The secondary efficiency filter is inserted through the second movable frame. The first elastic component is located on the inner side of the box body. The second elastic component is located inside the first movable frame.

[0005] Preferably, an air inlet pipe and an air outlet pipe are respectively provided on both sides of the housing, and mounting holes for fixing are provided on both the air inlet pipe and the air outlet pipe.

[0006] Preferably, the inner sides of the fan access port and the filter access port are respectively hinged to a first sealing door and a second sealing door, and two of each of the first sealing door and the second sealing door are provided.

[0007] Preferably, the rear side of the first movable frame is provided with a through hole and a groove, and there are two of each.

[0008] Preferably, the second movable frame has the same structure as the first movable frame.

[0009] Preferably, the first elastic component includes a first spring disposed inside the housing and a first abutment block disposed at the front end of the first spring.

[0010] Preferably, the second elastic component includes a second spring disposed inside the groove and a second abutment block disposed behind the second spring.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: By setting a fixed frame, a first movable frame, and a second movable frame, the filter can be easily disassembled and cleaned without affecting the use of the fan box, saving time and effort. Simultaneously, by setting the first elastic component and the second elastic component, the stability of the filter can be improved, preventing the filter from shaking. In use, the user can first rotate the second sealing door to open the filter inspection port, and then grasp the handle on the first movable frame and apply force to pull the first movable frame outwards. Due to the presence of rollers, the contact area between the first movable frame and the box body is reduced, thereby greatly reducing friction and facilitating the quick pulling of the first movable frame. After extraction, the pre-filter and the first moving frame can be directly separated. Similarly, the medium-efficiency filter can be disassembled in the same way, achieving the effect of convenient disassembly and cleaning of the filter, saving time and effort. At the same time, during installation, because the first spring of the first elastic component has a certain elasticity, the first abutting block can pass through the through hole and abut against the pre-filter or medium-efficiency filter, thus using elasticity to fix the pre-filter or medium-efficiency filter and prevent the pre-filter or medium-efficiency filter from loosening. Furthermore, because the second spring of the second elastic component has a certain elasticity, the second abutting block can abut against the inside of the housing, thus using elasticity to fix the first moving frame or the second moving frame and prevent the moving frame from loosening, resulting in excellent stability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This utility model Figure 1 Schematic diagram of the structure of the middle box and the fixed frame;

[0014] Figure 3 This utility model Figure 2 A schematic diagram of the structure of the first elastic component;

[0015] Figure 4 This utility model Figure 1 A schematic diagram of the structure of the first moving frame and the primary filter;

[0016] Figure 5 This utility model Figure 4A schematic diagram of the structure of the first movable frame and the second elastic component;

[0017] Figure 6 This utility model Figure 1 A schematic diagram of the structure of the second moving frame and the medium-efficiency filter.

[0018] Figure label:

[0019] 100. Housing; 101. Air inlet duct; 102. Air outlet duct; 103. Fan access port; 104. First sealing door; 105. Filter access port; 106. Second sealing door;

[0020] 200. Centrifugal fan;

[0021] 300. Fixed frame;

[0022] 400, First moving frame; 401, Roller; 402, Handle; 403, Through hole; 404, Groove;

[0023] 500. Pre-filter;

[0024] 600, Second moving frame;

[0025] 700, medium-efficiency filter;

[0026] 800, First elastic component; 801, First spring; 802, First abutment block;

[0027] 900, Second elastic component; 901, Second spring; 902, Second abutment block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0029] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a multi-stage filtration primary and secondary efficiency fan box.

[0030] Example 1:

[0031] Reference Figure 1-6 This is the first embodiment of the present utility model. This embodiment provides a multi-stage filtration primary and secondary efficiency fan box, including a box body 100, a centrifugal fan 200, a fixed frame 300, a first movable frame 400, a primary filter 500, a second movable frame 600, a secondary filter 700, a first elastic component 800, and a second elastic component 900.

[0032] Specifically, the front end of the housing 100 is provided with a fan inspection port 103 and a filter inspection port 105. The inner sides of the fan inspection port 103 and the filter inspection port 105 are respectively hinged to a first sealing door 104 and a second sealing door 106. There are two of each of the first sealing door 104 and the second sealing door 106. The sides of the housing 100 are respectively provided with an air inlet pipe 101 and an air outlet pipe 102. The air inlet pipe 101 and the air outlet pipe 102 are provided with mounting holes for fixing. In use, the first sealing door 104 can be rotated to open the fan inspection port 103 for easy maintenance of the centrifugal fan 200. Then, the second sealing door 106 can be rotated to open the filter inspection port 105 for easy maintenance of the filter. The air inlet pipe 101 allows air to enter, and the air outlet pipe 102 can discharge the purified air.

[0033] Specifically, the centrifugal fan 200 is bolted inside the housing 100. During operation, the centrifugal fan 200 is the power source for the fan housing, responsible for drawing in air and purifying it through the filter section. The performance of the fan directly affects the air volume and noise level of the fan housing.

[0034] Specifically, the fixing frame 300 is installed inside the housing 100. During use, the fixing frame 300 serves as a limit to facilitate the fixing of the primary filter 500 and the medium-efficiency filter 700.

[0035] Specifically, the first movable frame 400 is inserted inside the two fixed frames 300. Rollers 401 are connected to the upper and lower ends of the first movable frame 400 by bearings. Handles 402 are evenly distributed at the front and rear ends of the first movable frame 400. Through holes 403 and grooves 404 are provided on the rear side of the first movable frame 400. There are two through holes 403 and two grooves 404. In use, the user can first rotate the second sealing door 106 to open the filter inspection port 105. Then, the user can grasp the handles 402 on the first movable frame 400 and apply force to pull the first movable frame 400 outward. Due to the presence of the rollers 401, the contact area between the first movable frame 400 and the housing 100 is reduced, thereby greatly reducing friction and facilitating the quick removal of the first movable frame 400. After removal, the primary filter 500 and the first movable frame 400 can be directly separated, achieving the effect of convenient disassembly and cleaning of the filter, saving time and effort.

[0036] Specifically, the pre-filter 500 is inserted within the first movable frame 400. In use, the pre-filter 500 serves as the first line of defense, mainly used to capture larger particles such as dust and hair. It typically has a large filtration area and low resistance, ensuring smooth airflow.

[0037] Specifically, the second movable frame 600 is installed inside the housing 100. The second movable frame 600 has the same structure as the first movable frame 400. During use, the medium-efficiency filter 700 can be easily and quickly pulled out through the second movable frame 600 for cleaning and disassembly.

[0038] Specifically, the medium-efficiency filter 700 is inserted within the second movable frame 600. In use, the medium-efficiency filter 700 is located after the pre-filter 500 and is used to further remove fine particulate matter in the air. The filtration efficiency of the medium-efficiency filter 700 is usually higher than that of the pre-filter 500, and it can provide cleaner air.

[0039] Specifically, the first elastic component 800 is arranged inside the housing 100. The first elastic component 800 includes a first spring 801 arranged inside the housing 100 and a first abutting block 802 arranged at the front end of the first spring 801. In use, because the first spring 801 has a certain elasticity, the first abutting block 802 can pass through the through hole 403 and abut against the primary filter 500 or the secondary filter 700. The elasticity can be used to fix the primary filter 500 or the secondary filter 700, preventing the primary filter 500 or the secondary filter 700 from loosening.

[0040] Specifically, the second elastic component 900 is arranged inside the first movable frame 400. The second elastic component 900 includes a second spring 901 arranged inside the groove 404 and a second abutting block 902 arranged behind the second spring 901. In use, since the second spring 901 has a certain elasticity, the second abutting block 902 can abut against the inside of the box 100. The elasticity can be used to fix the first movable frame 400 or the second movable frame 600, preventing the movable frame from loosening and providing excellent stability.

[0041] The working principle and usage process of this utility model are as follows: In use, the user can first rotate the second sealing door 106 to open the filter inspection port 105. Then, the user can grasp the handle 402 on the first moving frame 400 and apply force to pull the first moving frame 400 outwards. Due to the presence of the roller 401, the contact area between the first moving frame 400 and the housing 100 is reduced, thereby greatly reducing friction and facilitating the quick removal of the first moving frame 400. After removal, the primary filter 500 and the first moving frame 400 can be directly separated. Similarly, the medium-efficiency filter 700 can be disassembled in the same way, achieving the effect of convenient disassembly and cleaning of the filter, saving time and effort. During installation, the first spring 801 of the first elastic component 800 has a certain elasticity, allowing the first abutting block 802 to pass through the through hole 403 and abut against the primary filter 500 or the secondary filter 700. This elasticity can fix the primary filter 500 or the secondary filter 700, preventing them from loosening. Furthermore, the second spring 901 of the second elastic component 900 has a certain elasticity, allowing the second abutting block 902 to abut against the inside of the housing 100. This elasticity can fix the first moving frame 400 or the second moving frame 600, preventing them from loosening. Both components offer excellent stability.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A multiple filtration primary and secondary effect fan- case, characterized by, Include: The box (100), the front end is equipped with fan access hole (103) and filter access hole (105); Centrifugal fan (200), bolted to the inside of the box (100); Fixed frame (300), equipped inside the box (100); The first mobile frame (400) is inserted between the two fixed frames (300), the upper and lower ends of the first mobile frame (400) are bearing connected with the rollers (401), and the front and rear ends of the first mobile frame (400) are equipped with handles (402); The primary filter (500) is inserted into the first mobile frame (400); Second mobile frame (600), equipped inside the box (100); Medium efficiency filter (700), inserted into the second mobile frame (600); The first elastic component (800) is arranged on the inner side of the box (100); The second elastic component (900) is arranged inside the first mobile frame (400).

2. A multiple filtration primary- medium- efficiency fan- case according to claim 1, characterized in that, Both sides of the box (100) are equipped with air inlet pipe (101) and air outlet pipe (102), and the air inlet pipe (101) and the air outlet pipe (102) are equipped with mounting holes for fixing.

3. A multiple filtration primary- medium- efficiency fan- case according to claim 1, characterized in that, The inner side of the fan access hole (103) and the filter access hole (105) is respectively hinged with the first sealing door (104) and the second sealing door (106), and the first sealing door (104) and the second sealing door (106) are equipped with two.

4. A multiple filtration primary- medium- efficiency fan- case according to claim 1, characterized in that, The rear side of the first mobile frame (400) is provided with through hole (403) and groove (404), and the through hole (403) and the groove (404) are provided with two.

5. A multiple filtration primary- secondary- effect fan case according to claim 1, characterized in that, The second mobile frame (600) and the first mobile frame (400) are the same structure.

6. A multiple filtration primary- medium- efficiency fan- case according to claim 1, wherein, The first elastic component (800) includes a first spring (801) arranged on the inner side of the box (100) and a first abutting block (802) arranged at the front end of the first spring (801).

7. A multiple filtration primary- medium- efficiency fan- case, according to claim 4, characterized in that, The second elastic component (900) includes a second spring (901) arranged inside the groove (404) and a second abutting block (902) arranged at the rear side of the second spring (901).

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