FFU purification equipment

Abstract

The utility model discloses FFU (Fan Filter Unit) purification equipment, which comprises a shell and relates to the field of filters, a positioning frame is fixedly mounted on the bottom side of the shell, a filter rack is detachably mounted on the bottom side of the positioning frame, and a filter element is mounted in the filter rack in a clearance fit manner; inserting rods are formed at the four ends of the upper side of the filtering frame, inserting grooves are formed in the four ends of the positioning frame, and the inserting rods are installed in the inserting grooves in a one-to-one correspondence and clearance fit mode. The front side and the rear side of the positioning frame are each provided with two quick release mechanisms, each quick release mechanism comprises a sliding rail, a clamping edge and a tension spring, the sliding rails are fixedly installed on the positioning frame, the clamping edges are arranged on the sliding rails in a sliding fit mode, the two ends of the tension springs are fixedly installed on the positioning frame and the clamping edges correspondingly, clamping grooves are formed in the clamping edges, barbs are formed at the upper ends of the inserting rods, and the barbs are inserted into the clamping grooves. The barbs are inserted into the inserting grooves and the clamping grooves in a clearance fit mode. According to the utility model, the filter element can be disassembled by shifting the clamping edges, and the barbs can be separated from the clamping grooves when the clamping edges translate on the sliding rails, so that the quick disassembly of the filter frame is realized.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to FFU purification equipment. Background Art

[0002] FFU fan filter units can be connected and used in modular form, making them widely used in clean rooms, clean workbenches, clean production lines, assembled clean rooms, laminar flow hoods and other applications. At present, FFU fan filter units are mainly used in clean rooms and ultra-clean rooms, widely used in electronic factories, biopharmaceutical laboratories, hospital operating rooms or laboratories, etc. The advantage of FFU fan filter units is that they can ultra-cleanly filter the air delivered by the air conditioning unit, and the minimum particle size can be controlled to no more than 0.3um, and then delivered to the clean environment of the servo through the fan to ensure a clean environment.

[0003] At present, the FFU fan filter unit on the market has the problem of difficulty in removing the filter plate. After long-term use, a large amount of dust will accumulate on the filter plate, resulting in a reduction in air output. The removal of the filter plate requires opening the top of the filter to take it out. Since the filter plate is difficult to remove, the cleaning and replacement of the filter plate are very cumbersome and inconvenient to use; for this reason, the prior art (announcement number: CN214223254U, announcement date: 2021.09.17) discloses an FFU filter replacement from the bottom. After the positioning rod is inserted into the slot, the positioning rod is suspended in the slot by inverted buckle, so that it will not fall automatically, making the installation and disassembly of the filter frame very convenient, and it is easy to replace and clean the filter plate. During operation, the motor drives the exhaust fan blades to draw the wind on the upper side into the filter plate for filtration, and the filtered gas passes through the filter plate for outlet.

[0004] In the above solution, the filter rack needs to be installed by hanging, and after installation, it is pulled into the slot through the undercut. Since the directions of the undercuts on the four positioning rods are the same, when they slide, all the undercuts will slide out of the slots at the same time. Therefore, it is necessary to fix the limiting edge with screws. The limiting edge clamps the undercut through the limiting groove to prevent it from sliding. Since the installation of the limiting edge needs to be locked with screws, the operation of disassembling the filter rack is still inconvenient, and there is still room for improvement. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the utility model provides a technical solution that can solve the above-mentioned problems.

[0006] An FFU purification device comprises a shell, a fan is fixedly installed in the middle of the shell, a positioning frame is fixedly installed on the bottom side of the shell, a filter frame is detachably installed on the bottom side of the positioning frame, and a filter element is installed in the filter frame in a gap fit;

[0007] The four ends of the upper side of the filter frame are formed with plug-in rods, which are arranged vertically. The four ends of the positioning frame are formed with plug-in slots, and the plug-in rods are installed in the plug-in slots with one-to-one clearance fit;

[0008] Two quick-release mechanisms are provided on the front and rear sides of the positioning frame, and the quick-release mechanisms include a slide rail, a clamping edge and a tension spring. The slide rail is fixedly installed on the positioning frame, a transverse groove is formed on the clamping edge, and the slide rail is arranged in the transverse groove with clearance. The two ends of the tension spring are respectively fixedly installed on the positioning frame and the clamping edge, a clamping groove is formed on the clamping edge, and the clamping groove is located above the plug-in groove. A barb is formed on the upper end of the plug-in rod, and the barb is inserted into the plug-in groove and the clamping groove with clearance, and the barb is suspended in the clamping groove through the tension spring.

[0009] Furthermore: the quick-release mechanisms on the left and right sides are symmetrically arranged with each other, a toggle block is formed at one end of the clamping edge away from the clamping groove, and an air avoidance groove is formed in the middle of the front and rear sides of the shell, and the toggle block of the clamping edge is gap-fitted and arranged in the air avoidance groove.

[0010] Furthermore: the slide rail is integrally formed and arranged on the positioning frame, an anti-slip edge is fixedly installed on the upper side of the slide rail by screws, a T-shaped structure is formed between the anti-slip edge and the slide rail, and the clamping edge is located at the bottom side of the anti-slip edge.

[0011] Furthermore: the toggle block and the anti-slip edge are arranged to be spaced apart from each other front and back.

[0012] Furthermore: the four ends of the upper side of the positioning frame are all formed with first positioning holes, the outer ends of the four clamping edges are all formed with second positioning holes, and the two ends of the tension spring are fixedly installed in the first positioning hole and the second positioning hole in a one-to-one correspondence.

[0013] Furthermore: the side edge of the upper end of the plug-in rod is formed with a chamfer, and the plug-in rod is inserted into the plug-in slot and the clamping slot through the chamfer.

[0014] Further: an air outlet is fixedly installed in the middle of the top side of the shell, and the air outlet is located above the fan.

[0015] Further: the filter element adopts a plate filter, and sealing rings are arranged on the upper and lower sides of the filter element. The filter element is installed between the positioning frame and the filter frame through the sealing ring.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. When installing the filter rack, manually insert the plug-in rods on the filter rack into the plug-in slot and the clamping slot one by one. After the installation is completed, the tension spring will drive the clamping edge to reset, and then the barb will be locked in the clamping slot. Since the tension spring will always hold the clamping edge, the barb will not automatically leave the clamping slot, which can effectively prevent collision;

[0018] 2. When disassembling, you can move the card edge to make it move horizontally on the slide rail. At this time, the barb will be out of the card groove, thereby realizing the quick disassembly of the filter frame. No screws need to be removed during disassembly, and the operation is convenient and quick.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram when the positioning frame is removed from the housing;

[0023] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at point A;

[0024] Figure 4 It is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at B;

[0026] Figure 6 yes Figure 4 A schematic diagram of the enlarged structure at C;

[0027] Figure 7 yes Figure 4 A schematic diagram of the structure at D of FIG.

[0028] Figure 8 It is a structural diagram of the positioning frame;

[0029] Fig. 9 yes Figure 8 Enlarged structural diagram at E.

[0030] As shown in the figure: 1. Housing; 2. Fan; 3. Positioning frame; 4. Filter frame; 5. Filter element; 6. Plug-in rod; 7. Plug-in slot; 8. Quick release mechanism; 81. Slide rail; 82. Snap-on edge; 83. Tension spring; 9. Horizontal slot; 10. Snap-on slot; 11. Barb; 12. Toggle block; 13. Avoidance slot; 14. Anti-slip edge; 15. First positioning hole; 16. Second positioning hole; 17. Chamfer; 18. Air outlet; 19. Sealing ring. DETAILED DESCRIPTION

[0031] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1-9As shown, an FFU purification device of the utility model comprises a housing 1, a fan 2 is fixedly installed in the middle of the housing 1, a positioning frame 3 is fixedly installed on the bottom side of the housing 1, a filter frame 4 is detachably installed on the bottom side of the positioning frame 3, and a filter element 5 is installed in the filter frame 4 in a gap fit;

[0037] The four ends of the upper side of the filter frame 4 are formed with plug-in rods 6, which are arranged vertically. The four ends of the positioning frame 3 are formed with plug-in slots 7, and the plug-in rods 6 are installed in the plug-in slots 7 with one-to-one clearance fit;

[0038] Two quick-release mechanisms 8 are provided on both the front and rear sides of the positioning frame 3. The quick-release mechanism 8 includes a slide rail 81, a clamping edge 82 and a tension spring 83. The slide rail 81 is fixedly mounted on the positioning frame 3. A transverse groove 9 is formed on the clamping edge 82. The slide rail 81 is arranged in the transverse groove 9 with clearance fit. The two ends of the tension spring 83 are respectively fixedly mounted on the positioning frame 3 and the clamping edge 82. A clamping groove 10 is formed on the clamping edge 82. The clamping groove 10 is located above the plug-in groove 7. A barb 11 is formed on the upper end of the plug-in rod 6. The barb 11 is inserted into the plug-in groove 7 and the clamping groove 10 with clearance fit. The barb 11 is suspended and installed in the clamping groove 10 through the tension spring 83.

[0039] The principle is: when installing the filter frame 4, manually insert the plug-in rod 6 on the filter frame 4 into the plug-in slot 7 and the clamping slot 10 one by one. After the installation is completed, the tension spring 83 will drive the clamping edge 82 to reset, and then the barb 11 will be clamped in the clamping slot 10 for locking. Since the tension spring 83 will always hold the clamping edge 82, the barb 11 will not automatically disengage from the clamping slot 10, which can effectively prevent collision; when disassembling, the clamping edge 82 can be moved horizontally on the slide rail 81 by toggling the clamping edge 82. At this time, the barb 11 will disengage from the clamping slot 10, thereby realizing the rapid disassembly of the filter frame 4. There is no need to remove any screws during disassembly, and the operation is convenient and quick.

[0040] Furthermore: the quick-release mechanisms 8 on the left and right sides are symmetrically arranged with each other, a toggle block 12 is formed at the end of the clamping edge 82 away from the clamping groove 10, and an air avoidance groove 13 is formed in the middle of the front and rear sides of the shell 1, and the toggle block 12 of the clamping edge 82 is gap-fittedly arranged in the air avoidance groove 13; the toggle block 12 can be used to open the clamping edge 82, and the setting of the air avoidance groove 13 allows the toggle edge 12 to extend out of the shell 1 for toggle, thereby facilitating the disassembly of the filter frame 4.

[0041] Furthermore: the slide rail 81 is integrally formed and arranged on the positioning frame 3, and an anti-slip edge 14 is fixedly installed on the upper side of the slide rail 81 by screws, a T-shaped structure is formed between the anti-slip edge 14 and the slide rail 81, and the clamping edge 82 is located on the bottom side of the anti-slip edge 14; it can ensure that the clamping edge 82 slides stably on the slide rail 81, and the transverse groove 9 will not be separated from the slide rail 81.

[0042] Furthermore, the toggle block 12 and the anti-slip edge 14 are spaced apart from each other in front and back, so that the toggle block 12 and the anti-slip edge 14 do not affect each other, thereby ensuring stable sliding of the clamping edge 82.

[0043] Furthermore: the four ends of the upper side of the positioning frame 3 are all formed with first positioning holes 15, the outer ends of the four clamping edges 82 are all formed with second positioning holes 16, and the two ends of the tension spring 83 are fixedly installed in the first positioning hole 15 and the second positioning hole 16 in a one-to-one correspondence; making the installation of the tension spring 83 more stable.

[0044] Furthermore: the side edge of the upper end of the plug-in rod 6 is formed with a chamfer 17, and the plug-in rod 6 is inserted into the plug-in slot 7 and the clamping slot 10 through the chamfer 17; when the plug-in rod 6 is inserted, the clamping edge 82 can be pushed by the chamfer 17, and after being plugged into place, the tension spring 83 drives the clamping edge 82 to reset, and then clamps the barb 11 to complete the locking, thereby facilitating the installation operation of the filter frame 4.

[0045] Furthermore: an air outlet 18 is fixedly installed in the middle of the top side of the shell 1, and the air outlet 18 is located above the fan 2; when the fan 2 is working, the air in the room is driven to pass through the filter element 5 and then output from the air outlet 18, and the filter element 5 is used to achieve air purification.

[0046] Furthermore: the filter element 5 adopts a plate filter, and sealing rings 19 are provided on the upper and lower sides of the filter element 5. The filter element 5 is installed between the positioning frame 3 and the filter frame 4 through the sealing ring 19; it can prevent air leakage and ensure the air purification effect.

[0047] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. An FFU purification device, comprising a housing, a fan is fixedly installed in the middle of the housing, a positioning frame is fixedly installed on the bottom side of the housing, a filter frame is detachably installed on the bottom side of the positioning frame, and a filter element is installed in the filter frame in a gap fit; characterized in that: The four ends of the upper side of the filter frame are formed with plug-in rods, which are arranged vertically. The four ends of the positioning frame are formed with plug-in slots, and the plug-in rods are installed in the plug-in slots with one-to-one clearance fit; Two quick-release mechanisms are provided on the front and rear sides of the positioning frame, and the quick-release mechanisms include a slide rail, a clamping edge and a tension spring. The slide rail is fixedly installed on the positioning frame, a transverse groove is formed on the clamping edge, and the slide rail is arranged in the transverse groove with clearance. The two ends of the tension spring are respectively fixedly installed on the positioning frame and the clamping edge, a clamping groove is formed on the clamping edge, and the clamping groove is located above the plug-in groove. A barb is formed on the upper end of the plug-in rod, and the barb is inserted into the plug-in groove and the clamping groove with clearance, and the barb is suspended in the clamping groove through the tension spring.

2. A FFU purification device according to claim 1, characterized in that: The quick release mechanisms on the left and right sides are symmetrically arranged with each other, a toggle block is formed at one end of the clamping edge away from the clamping groove, and a clearance groove is formed in the middle of the front and rear sides of the shell, and the toggle block of the clamping edge is gap-fitted and arranged in the clearance groove.

3. A FFU purification device according to claim 2, characterized in that: The slide rail is integrally formed and arranged on the positioning frame, an anti-slip edge is fixedly installed on the upper side of the slide rail by screws, a T-shaped structure is formed between the anti-slip edge and the slide rail, and the clamping edge is located at the bottom side of the anti-slip edge.

4. A FFU purification device according to claim 3, characterized in that: The toggle block and the anti-slip edge are arranged to be spaced apart from each other front and back.

5. A FFU purification device according to any one of claims 1 to 4, characterized in that: The four ends of the upper side of the positioning frame are all formed with first positioning holes, the outer ends of the four clamping edges are all formed with second positioning holes, and the two ends of the tension spring are fixedly installed in the first positioning holes and the second positioning holes in a one-to-one correspondence.

6. The FFU purification equipment according to claim 1, characterized in that: The side edge of the upper end of the plug-in rod is formed with a chamfered angle, and the plug-in rod is inserted into the plug-in slot and the clamping slot through the chamfered angle.

7. The FFU purification equipment according to claim 1, characterized in that: An air outlet is fixedly installed in the middle of the top side of the shell, and the air outlet is located above the fan.

8. The FFU purification equipment according to claim 1, characterized in that: The filter element adopts a plate filter, and sealing rings are arranged on both the upper and lower sides of the filter element. The filter element is installed between the positioning frame and the filter frame through the sealing ring.

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