External fan box

Abstract

The utility model discloses an external fan box, which is characterized in that the fan box is positioned in a mounting channel arranged on an air pipe or a building wall, a mounting position is arranged at the edge of an inlet of the mounting channel, a fixing ring is positioned and connected to the mounting position, and the inner side wall of the fixing ring is flush with the inner side wall of the inlet of the mounting channel. Through cooperation of the sealing block, the positioning groove and the fixing buckle, rapid dismounting operation of the mounting box and sealing operation on the peripheral side of the mounting box can be achieved, specifically, when the mounting box needs to be fixed, the insertion end of the mounting box is pushed to be inserted into the mounting channel till the sealing block is also inserted into the positioning groove, and then the mounting box is fixed. The sealing block is inserted into the positioning groove and then abuts against the inner side wall of the positioning groove, so that the air leakage phenomenon of the peripheral side wall of the mounting box is avoided, meanwhile, the limiting table is clamped with the buckling part so as to limit the mounting box, fixing of the mounting box is completed, and once the mounting box needs to be disassembled, the mounting box is pulled out with force.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fan technology field, concretely relates to a kind of external fan box. BACKGROUND

[0002] Fan as a kind of common mechanical equipment, is widely used in industrial production, building ventilation, cooling smoke exhaust and other fields.Fan can be used for ventilation exhaust.In the building interior or industrial production process, a large amount of heat and exhaust gas is generated due to personnel activity, equipment operation, etc.If it cannot be timely removed, it will cause air pollution, affect indoor environmental quality, and even harm human health.Fan can be installed in outer wall or air pipe, and through generating powerful wind, indoor hot air, odor, etc.are quickly removed, so as to not only keep indoor air circulation, but also keep indoor air fresh.

[0003] Representatively, such as the patent literature with the application number CN201721201560.9, discloses a kind of external multi-face air inlet wall-mounted fresh air machine, the main fan filter layer assembly of the utility model is installed outdoors, operating noise is in outdoor, the noise that transmits into room is minimum, there is only one air outlet (i.e.adjustable air outlet assembly) in the corner of room interior (i.e.room curtain side), it reaches beautiful, simple, quiet on effect, and does not affect the use of large curtain or large door window on room outer wall.

[0004] The above patent literature discloses the technical scheme that fan is installed on wall, but there are limitations in specific use, as follows:

[0005] Fan box needs to be fixed in outer wall or air pipe, so it often relies on screws (such as expansion screws) and other components for fixation, which is good for outer wall installation, because the space beside the outer wall installation position is large enough for the operator to operate, but when fixed in air pipe, the operator needs to consider how to fix the screw during the process of placing the fan in the air pipe, especially in the area close to the room top, because the distance between the room top and the area is very close, the operator's arm or rotating tool is easily blocked by the room top when rotating the screw, resulting in the phenomenon of unsmooth force, and also due to the problem of room top, dust is easily accumulated at the screw (such as screw hole) when the air pipe sucks and discharges air, so the screw needs to be repeatedly rotated out during fan maintenance, which is easily affected by dust, increasing the difficulty of screw rotation (such as dust blocking the screw rotation slot, dust entering the screw slot), affecting disassembly.

[0006] Therefore, how to solve the deficiencies of the above existing technology has become the subject to be studied and solved by the utility model. UTILITY MODEL CONTENT

[0007] This utility model provides an external fan box, which aims to solve the technical problems mentioned in the background art.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: an external fan box, wherein the fan box is positioned in an installation channel provided on a duct or building wall, an installation position is provided at the entrance edge of the installation channel, a fixing ring is positioned and connected at the installation position, the inner side wall of the fixing ring is flush with the inner side wall of the entrance of the installation channel, and the surface of the fixing ring away from the installation channel has a positioning groove recessed towards the side of the installation channel;

[0009] A fixing buckle is positioned and connected in the positioning groove, and the fixing buckle has a snap-fit ​​part;

[0010] The fan box includes a fan body, a mounting box, a frame, and a sealing block;

[0011] The mounting box has an insertion end at one end and a suction end at the other end; and the mounting box is provided with an installation space inside.

[0012] The main body of the fan is positioned and connected within the installation space so that outside air enters the installation channel along the direction from the suction end to the insertion end.

[0013] A frame is provided on the outer peripheral surface of the mounting box, near the suction end, and the frame is provided in correspondence with the positioning groove.

[0014] The sealing block is disposed on the surface of the frame near the mounting channel, and the sealing block is matched with the positioning groove.

[0015] The surface of the enclosed block near the installation channel has a recessed slot on the side away from the installation channel. The slot opening is opposite to the slot opening of the positioning slot, and the slot is corresponding to the fixing buckle. The slot is provided with a limiting platform that is positioned and connected to the outer peripheral surface of the mounting box.

[0016] When the mounting box is positioned within the mounting channel, the sealing block is inserted into the positioning groove and abuts against the inner side wall of the positioning groove. The limiting platform is configured to engage with the buckle portion to limit the mounting box.

[0017] The relevant content in the above plan is explained as follows:

[0018] In the above scheme, the installation channels installed on the air ducts or building walls can be referred to Figure One As shown, Figure OneThe demonstration shows the installation channel set on the building wall. However, for the installation channel set on the air duct, only the shaded part on the outside of the installation channel needs to be removed, that is, the installation channel is the air duct.

[0019] In the above scheme, the dimensions of the mounting box should be fitted with the mounting channel with a clearance to facilitate the installation of the mounting box. At the same time, the clearance should not be set too large to prevent gas leakage.

[0020] In the above scheme, the main body of the wind turbine is positioned and connected to the middle area within the installation space, as detailed below. Figure Two .

[0021] In the above scheme, the positioning groove can be in the shape of a straight line, L-shape, U-shape, or mouth shape, or circle, etc., and its main purpose is to install the fixing buckle.

[0022] In the above scheme, a quadrilateral structure is generally chosen for the installation box to facilitate the installation of the fan box.

[0023] In the above scheme, the depth of the positioning groove must be at least equal to the thickness of the sealing block, and the sealing block must function to seal the positioning groove after insertion.

[0024] In the above scheme, the sealing block can be made of rubber.

[0025] It should be noted that the inner wall of the positioning groove refers to the description based on the positioning groove, while the inner and outer sides of the annular groove refer to the description based on the installation channel.

[0026] In a further technical solution, the positioning groove is a quadrilateral annular groove;

[0027] With the installation channel as the reference, the side closer to the installation channel is the inner side, and the side farther away from the installation channel is the outer side. The inner side of the annular groove is flush with the inner wall of the inlet of the installation channel.

[0028] The above design allows the sealing block to be sealed from all sides of the mounting box.

[0029] A further technical solution involves positioning the fixing buckles at the four corners of the annular groove in the quadrilateral structure. This design enhances the stability of the mounting box during installation.

[0030] In a further technical solution, the fixing buckle includes a U-shaped rod, a crossbar, a bent rod, and a ring rod;

[0031] One end of the U-shaped rod is a straight end and the other end is a bent end. The end of the crossbar is integrally connected to the bent end, and the crossbar serves as a buckle that engages with the limiting platform.

[0032] The other end of the crossbar is integrally connected to the end of the bent bar, and the other end of the bent bar is positioned and connected to the ring bar;

[0033] The circular rod is a P-shaped rod integrally connected with the bent rod. The P-shaped rod has a circular part, which is located in the area between the inner side of the ring groove and the outer side of the ring groove.

[0034] Because the fastener has a simple structure, it is relatively easy to fix. The fixing method can be found by referring to [the following text is incomplete and requires further context]. Figure Five .

[0035] In a further technical solution, a set distance exists between the annular portion and the outer side of the annular groove;

[0036] With the installation channel as a reference, the inner side of the slot is flush with the outer circumference of the mounting box, and a pressing block is provided on the outer side of the slot.

[0037] When the mounting box is positioned within the mounting channel, the pressing block is configured to be inserted at the set spacing.

[0038] With the above design, after the sealing block is inserted into the positioning groove, the cooperation between the pressing block and the set distance can make the sealing block more fully abut against the inner wall of the positioning groove.

[0039] Furthermore, to ensure more even force distribution on the pressing block, the fixing clips can be positioned between adjacent corners of the annular groove in the quadrilateral structure. More specifically, they can be positioned corresponding to the central areas of the four sides of the quadrilateral structure, as shown in the example below. Figure Seven As shown.

[0040] At this time, the U-shaped bottom of the U-shaped rod is engaged with the buckle, and the straight end of the U-shaped rod abuts against the pressing block.

[0041] A further technical solution is to provide multiple stress-relieving cavities within the enclosed block, between the outer side of the locking groove and the outer wall of the enclosed block.

[0042] Since the mounting box sometimes needs to be disassembled for maintenance, if the sealing block abuts too strongly against the inner wall of the positioning groove, it will be difficult to pull the mounting box out. The pressure relief cavity can relieve some of the pressure applied to the pressing block by the ring part through its own deformation, making it easier to disassemble the mounting box.

[0043] It should be noted that the unloading cavity is closed.

[0044] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0045] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0046] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0047] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0048] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0049] The working principle and advantages of this utility model are as follows:

[0050] In this invention, the quick assembly and disassembly of the mounting box and the sealing of its perimeter can be achieved through the cooperation of the sealing block, the positioning groove, and the fixing buckle. Specifically, when the mounting box needs to be fixed, the insertion end of the mounting box is pushed directly into the installation channel until the sealing block is also inserted into the positioning groove. After the sealing block is inserted into the positioning groove, it will abut against the inner side wall of the positioning groove, so that there will be no air leakage on the outer perimeter of the mounting box. At the same time, the limiting platform will engage with the buckle to limit the mounting box, thus completing the fixing of the mounting box. Once the mounting box needs to be removed, it can be pulled out by force. Attached Figure Description

[0051] Appendix Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0052] Appendix Figure 2 This is a schematic diagram of the fan box structure in an embodiment of the present utility model;

[0053] Appendix Figure 3 This is a schematic diagram of the suction end structure in an embodiment of the present utility model;

[0054] Appendix Figure 4 This is a schematic diagram of the fixing buckle structure in an embodiment of the present utility model;

[0055] Appendix Figure 5 This is a schematic diagram of the structure when the fixing buckle is installed at the four corners of the positioning groove in an embodiment of the present utility model;

[0056] Appendix Figure 6 This is a schematic diagram of the force-relieving cavity structure in an embodiment of the present invention;

[0057] Appendix Figure 7 This is a schematic diagram of the structure in which the fixing buckle is installed between adjacent corners in the positioning groove in an embodiment of the present utility model.

[0058] In the attached diagrams: 1. Installation channel; 2. Fixing ring; 3. Positioning groove; 4. Fixing buckle; 5. Snap-fit ​​part; 6. Fan body; 7. Mounting box; 8. Frame; 9. Enclosing block; 10. Insertion end; 11. Suction end; 12. Positioning groove; 13. Limiting platform; 14. U-shaped rod; 15. Unloading cavity; 16. Bending rod; 17. Circular ring rod; 18. Setting spacing; 19. Pressing block. Detailed Implementation

[0059] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0060] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0061] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0062] See appendix Figures 1-7 As shown, an external fan box is positioned within an installation channel 1 set on a duct or building wall. An installation position is provided at the entrance edge of the installation channel 1, and a fixing ring 2 is positioned and connected to the installation position. The inner side wall of the fixing ring 2 is flush with the inner side wall of the entrance of the installation channel 1, and the surface of the fixing ring 2 away from the installation channel 1 has a positioning groove 3 recessed towards the side of the installation channel 1.

[0063] A fixing buckle 4 is positioned and connected in the positioning groove 3, and the fixing buckle 4 has a latching part 5;

[0064] The fan box includes a fan body 6, a mounting box 7, a frame 8, and a sealing block 9;

[0065] The mounting box 7 has an insertion end 10 at one end and a suction end 11 at the other end; and the mounting box 7 is provided with an installation space inside.

[0066] The fan body 6 is positioned and connected within the installation space so that outside air enters the installation channel 1 along the direction from the suction end 11 to the insertion end 10.

[0067] A frame 8 is provided on the outer peripheral surface of the mounting box 7 and on the side near the suction end 11, and the frame 8 is provided in correspondence with the positioning groove 3;

[0068] The closing block 9 is disposed on the surface of the frame 8 near the mounting channel 1, and the closing block 9 is matched with the positioning groove 3.

[0069] The surface of the closed block 9 near the installation channel 1 has a recessed slot 12 that is recessed away from the installation channel 1. The slot opening of the slot 12 is opposite to the slot opening of the positioning slot 3, and the slot 12 is corresponding to the fixing buckle 4. The slot 12 is provided with a limiting platform 13 that is positioned and connected to the outer peripheral surface of the installation box 7.

[0070] When the mounting box 7 is positioned in the mounting channel 1, the closing block 9 is inserted into the positioning groove 3 and abuts against the inner side wall of the positioning groove 3. The limiting platform 13 is configured to engage with the buckle part 5 to limit the mounting box 7.

[0071] In this embodiment, the installation channel 1 provided on the air duct or building wall can be referred to... Figure One As shown, Figure One The example shown is the installation channel 1 set on the building wall. The installation channel 1 set on the air duct only needs to have the shaded part on the outside of the installation channel 1 removed, that is, the installation channel 1 is the air duct.

[0072] In this embodiment, the dimensions of the mounting box 7 should be in clearance fit with the mounting channel 1 to facilitate the installation of the mounting box 7. At the same time, the clearance should not be set too large to prevent gas leakage.

[0073] In this embodiment, the main body 6 of the fan is positioned and connected to the middle area within the installation space, as detailed below. Figure Two .

[0074] In this embodiment, the positioning groove 3 can be in the shape of a straight line, an L-shape, a U-shape, a mouth shape, or a circle, etc., and its main purpose is to install the fixing buckle 4.

[0075] In this embodiment, to facilitate the installation of the fan box, the mounting box 7 is generally selected as a quadrilateral structure.

[0076] In this embodiment, the depth of the positioning groove 3 must be at least equal to the thickness of the closing block 9, and the closing block 9, after being inserted, needs to close the positioning groove 3.

[0077] It should be noted that the inner wall of the positioning groove 3 refers to the description based on the positioning groove 3, while the inner and outer sides of the annular groove refer to the description based on the installation channel 1.

[0078] In this utility model, the quick assembly and disassembly of the mounting box 7 and the sealing operation of the periphery of the mounting box 7 can be achieved through the cooperation of the sealing block 9 with the positioning groove 3 and the fixing buckle 4. Specifically, when it is necessary to fix the mounting box 7, the insertion end 10 of the mounting box 7 is directly pushed into the installation channel 1 until the sealing block 9 is also inserted into the positioning groove 3. After the sealing block 9 is inserted into the positioning groove 3, it will abut against the inner side wall of the positioning groove 3, so that there will be no air leakage on the outer periphery of the mounting box 7. At the same time, the limiting platform 13 will engage with the buckle part 5 to limit the mounting box 7, thus completing the fixing of the mounting box 7. Once it is necessary to remove the mounting box 7, simply pull out the mounting box 7 by force.

[0079] In some specific embodiments, the positioning groove 3 is a quadrilateral annular groove;

[0080] With installation channel 1 as the reference, the side closer to installation channel 1 is the inner side, and the side farther away from installation channel 1 is the outer side. The inner side of the annular groove is flush with the inner wall of the inlet of installation channel 1.

[0081] The above design allows the sealing block 9 to be sealed from all sides of the mounting box 7.

[0082] In some specific embodiments, the fixing buckle 4 is disposed at the four corners of the annular groove of the quadrilateral structure.

[0083] The above design makes the installation box 7 more stable when it is fixed.

[0084] In some specific embodiments, the fixing buckle 4 includes a U-shaped rod 14, a crossbar, a bent rod 16, and a ring rod 17;

[0085] One end of the U-shaped rod 14 is a straight end and the other end is a bent end. The end of the crossbar is integrally connected to the bent end, and the crossbar serves as a buckle 5 that engages with the limiting platform 13.

[0086] The other end of the crossbar is integrally connected to the end of the bent rod 16, and the other end of the bent rod 16 is positioned and connected to the ring rod 17;

[0087] The circular rod 17 is a P-shaped rod integrally connected to the bent rod 16. The P-shaped rod has a circular part, which is located in the area between the inner side of the ring groove and the outer side of the ring groove.

[0088] Because the structure of the fixing buckle 4 is simple, it is also relatively easy to fix. The fixing method can be referred to Figure Five .

[0089] In some specific embodiments, a set distance 18 exists between the annular portion and the outer side of the annular groove;

[0090] With the installation channel 1 as a reference, the side closer to the installation channel 1 is the inner side, and the side farther away from the installation channel 1 is the outer side. The inner side of the slot 12 is flush with the outer peripheral surface of the mounting box 7, and a pressing block 19 is provided on the outer side of the slot 12.

[0091] When the mounting box 7 is positioned within the mounting channel 1, the pressing block 19 is configured to be inserted at the set spacing 18.

[0092] The pressing block 19 installed on the sealing block 9 and the set distance 18 can be a transition fit or an interference fit, preferably an interference fit, so that the annular part can push the pressing block 19, so that the sealing block 9 abuts more fully against the inner wall of the positioning groove 3.

[0093] With the above design, after the sealing block 9 is inserted into the positioning groove 3, the cooperation between the pressing block 19 and the set spacing 18 can make the sealing block 9 more fully abut against the inner wall of the positioning groove 3.

[0094] Specifically, when the sealing block 9 is inserted into the positioning groove 3, the outer wall of the sealing block 9 will abut against the inner wall of the positioning groove 3 and gradually slide into the positioning groove 3 along the inner wall of the positioning groove 3. When the sealing block 9 contacts the bottom of the positioning groove 3, the crossbar will lock the limiting platform 13 to achieve the fixed operation of the installation box 7. At the same time, the pressing block 19 will also be inserted into the set spacing 18 by the sealing block 9. After insertion, the ring part will push the pressing block 19 to compress the sealing block 9, so that the sealing block 9 abuts more tightly against the inner wall of the positioning groove 3.

[0095] Furthermore, to ensure a more even force distribution on the pressing block 19, the fixing buckle 4 can be positioned between adjacent corners of the annular groove of the quadrilateral structure. More specifically, it can be positioned correspondingly in the central area of ​​the four sides of the quadrilateral structure, as shown in the example below. Figure Seven As shown.

[0096] At this time, the U-shaped bottom of the U-shaped rod 14 is engaged with the buckle part 5, and the straight end of the U-shaped rod 14 abuts against the pressing block 19.

[0097] In some specific embodiments, a plurality of stress-relieving cavities 15 are provided within the enclosed block 9 between the outer side of the locking groove 12 and the outer side wall of the enclosed block 9.

[0098] Since the mounting box 7 sometimes needs to be disassembled for maintenance, if the sealing block 9 abuts too strongly against the inner wall of the positioning groove 3, it will be difficult to pull out the mounting box 7. The pressure relief cavity 15 can relieve some of the pressure applied to the pressing block 19 by the annular part through its own deformation, making it easier to disassemble the mounting box 7.

[0099] It should be noted that the unloading cavity 15 is a closed type.

[0100] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An external fan housing, characterized in that: The fan box is positioned in the installation channel (1) set on the air duct or building wall. The entrance edge of the installation channel (1) is provided with an installation position. A fixing ring (2) is positioned and connected to the installation position. The surface of the fixing ring (2) away from the installation channel (1) has a positioning groove (3) recessed towards the side of the installation channel (1). The positioning groove (3) is connected to a fixing buckle (4), and the fixing buckle (4) has a snap-fit ​​part (5). The fan box includes a fan body (6), a mounting box (7), a frame (8), and a sealing block (9); The mounting box (7) has an insertion end (10) at one end and a suction end (11) at the other end; and the mounting box (7) has an installation space inside. The main body (6) of the fan is positioned and connected in the installation space so that outside air enters the installation channel (1) along the direction from the suction end (11) to the insertion end (10); A frame (8) is provided on the outer peripheral surface of the mounting box (7) near the suction end (11), and the frame (8) is provided in correspondence with the positioning groove (3); The closing block (9) is disposed on the side surface of the frame (8) near the mounting channel (1) and is inserted into the positioning groove (3); The closed block (9) is provided with a slot (12), the slot opening of the slot (12) is opposite to the slot opening of the positioning slot (3), and the slot (12) is provided with a limiting platform (13) that is positioned and connected to the outer peripheral surface of the mounting box (7). When the mounting box (7) is positioned in the mounting channel (1), the closing block (9) is inserted into the positioning groove (3) and abuts against the inner side wall of the positioning groove (3). The limiting platform (13) is configured to engage with the buckle (5) to limit the mounting box (7).

2. The external fan housing according to claim 1, characterized in that: The fixing buckle (4) includes a U-shaped rod (14), a crossbar, a bent rod (16), and a ring rod (17). One end of the U-shaped rod (14) is a straight end and the other end is a bent end. The end of the crossbar is integrally connected with the bent end, and the crossbar serves as a buckle (5) that engages with the limiting platform (13). The other end of the crossbar is integrally connected to the end of the bent rod (16), and the other end of the bent rod (16) is positioned and connected to the ring rod (17); The circular rod (17) is a P-shaped rod integrally connected with the bent rod (16). The P-shaped rod has a circular part located in the area between the inner side of the ring groove and the outer side of the ring groove.

3. The external fan housing according to claim 2, characterized in that: There is a set distance (18) between the annular portion and the outer side of the annular groove. Based on the installation channel (1), the side closer to the installation channel (1) is the inner side, and the side farther away from the installation channel (1) is the outer side. The inner side of the slot (12) is flush with the outer circumference of the installation box (7), and a pressing block (19) is provided on the outer side of the slot (12). When the mounting box (7) is positioned within the mounting channel (1), the pressing block (19) is configured to be inserted at the set spacing (18).

4. The external fan housing according to claim 3, characterized in that: Within the enclosed block (9), a plurality of stress-relieving cavities (15) are provided between the outer side of the locking groove (12) and the outer side wall of the enclosed block (9).

5. The external fan housing according to claim 1, characterized in that: The positioning groove (3) is a quadrilateral annular groove; Based on the installation channel (1), the side closer to the installation channel (1) is the inner side, and the side farther away from the installation channel (1) is the outer side. The inner side of the annular groove is flush with the inner wall of the entrance of the installation channel (1).

6. The external fan housing according to claim 5, characterized in that: The fixing buckle (4) is set at the four corners of the annular groove of the quadrilateral structure.

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