Filter assembly for air inlet of side-flow type industrial centrifugal fan
By setting up a filter unit on the outside of the inlet passage of the industrial fan, including a pressure plate, a filter element and a rubber ring, the dust pollution problem is solved, effective filtration of dust and reliable replacement of the filter element is achieved, and the indoor environment is ensured.
Patent Information
- Application Number
- CN202420736874.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-11
AI Technical Summary
The existing industrial air inlet structure has no filtering device installed, causing external dust to enter the machine directly, contaminating the indoor environment.
The filter unit is arranged on the outside of the air inlet passage, including a pressure plate, a filter element and a rubber ring. The filter element is opposite to the air inlet passage, and the rubber ring is sealed with the pressure plate. Dust filtering is realized through the air inlet hole group, and through the annular slot, insert block, and ring-shaped The boss structure improves assembly reliability, and the hand-tight bolts and connecting ears can be used to replace the filter element.
Effectively block external dust from entering the room, avoid indoor pollution, and maintain the filtering effect by regularly changing the filter element.
Smart Images
Figure CN222239289U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air inlets for industrial centrifugal fans, and in particular to a side-flow type air inlet filter assembly for industrial centrifugal fans. Background Art
[0002] The air inlet is an accessory used to be fixed on the air inlet end of an industrial centrifugal fan. The air inlet for industrial centrifugal fans currently on the market includes an air inlet body which is open at one end and has a cavity inside. The open end of the air inlet body is used to connect with the air inlet end of the industrial centrifugal fan. An air inlet channel is provided on each side wall of the air inlet body in the circumferential direction. When the industrial centrifugal fan is working, the air in the external environment can enter the air inlet body through the air inlet channel, and the air entering the air inlet body can enter the room after passing through the industrial centrifugal fan; however, in the above-mentioned air inlet structure, no filtering device is provided at the air inlet channel located on the air inlet body, so that dust mixed in the air from the external environment will directly enter the air inlet body, and the dust will enter the room with the industrial centrifugal fan, which will cause pollution to the indoor environment. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a side-flow industrial centrifugal fan air inlet filter assembly, which can block dust mixed in the air from the external environment, thereby preventing dust from entering the room, that is, preventing the indoor environment from being polluted by dust.
[0004] The utility model provides a side-flow industrial centrifugal blower air inlet filter assembly, comprising an air inlet body which is open at one end and has a cavity inside, the open end of the air inlet body is used to be connected to the air inlet end of the industrial centrifugal blower, an air inlet channel is arranged on each side wall of the air inlet body in the circumferential direction, a filter unit is arranged on the outside of each air inlet channel, and each filter unit is connected to the outer side wall of the air inlet body.
[0005] The utility model provides a filter unit on the outside of each air inlet channel, and the filter unit can block dust mixed in the air from the external environment, thereby preventing dust from entering the room, that is, preventing the indoor environment from being polluted by dust.
[0006] In a possible embodiment, each filter unit includes a pressing plate and a filter element, each filter element is arranged opposite to the air inlet channel on the corresponding side, each filter element is sleeved with a rubber ring, the inner peripheral wall of the rubber ring is bonded and fixed to the outer peripheral wall of the filter element and sealed, the pressing plate is connected to the outer side wall of the air inlet body, each rubber ring is pressed against the outer side wall of the air inlet body by the pressing plate on the corresponding side, each pressing plate is provided with an air inlet hole group, and each air inlet hole group is arranged opposite to the filter element on the corresponding side; by adopting this filter unit, when the industrial centrifugal fan is working, the air in the external environment can flow through the air inlet hole group, the filter element and the air inlet body in sequence into the industrial centrifugal fan, and when the air flows through the filter element, the filter element can filter the dust in the air; in addition, under the action of the rubber ring, the gap between the outer edge of the filter element and the pressing plate and the air inlet body can be sealed, that is, the air that has not been filtered by the filter element can be prevented from entering the air inlet body from the gap between the outer edge of the filter element and the pressing plate and the air inlet body.
[0007] In a possible embodiment, an annular slot is provided on the outer end surface of the rubber ring, and an annular plug block is provided on the inner end surface of the pressure plate, and the annular plug block is inserted into the annular slot and tightly fits with the annular slot; by adopting this structure, when the filter element with the rubber ring is assembled with the pressure plate, the annular slot on the rubber ring can be matched and plugged with the annular plug block on the pressure plate, thereby realizing the positioning and limiting effect of the filter element, that is, it can bring convenience to the assembly of the filter element and the pressure plate, and can improve the reliability of the filter element and the pressure plate after assembly.
[0008] In a possible embodiment, an annular boss is provided on each outer side wall in the circumferential direction of the air inlet body, and the inner end portion of each rubber ring is embedded in the annular boss on the corresponding side; by adopting this structure, after the rubber ring is pressed onto the outer side wall of the air inlet body by the pressure plate, the inner end portion of each rubber ring can be embedded in the annular boss on the corresponding side, that is, it can further play a limiting role on the rubber ring and the filter element, thereby improving the reliability of the rubber ring after being pressed onto the outer side wall of the air inlet body by the pressure plate, and can further improve the reliability of the rubber ring and the filter element being assembled between the pressure plate and the air inlet body.
[0009] In a possible implementation, one end of each pressure plate is rotatably connected to the outer side wall of the air inlet body, and the other end of each pressure plate is fastened to the air inlet body by a hand-tightening bolt. A threaded hole corresponding to each hand-tightening bolt is provided on the outer side wall of the air inlet body, and the screw portion of each hand-tightening bolt is movable through the other end of the pressure plate and is threadedly connected to the threaded hole at the corresponding position; after adopting this structure, when the hand-tightening bolt is turned to disengage the screw portion of the hand-tightening bolt from the threaded hole, the pressure plate can be rotated open relative to the air inlet body. At this time, the filter element with the rubber ring can be replaced. After the filter element is replaced, the pressure plate is rotated so that the pressure plate presses the rubber ring against the outer side wall of the air inlet body, and the pressure plate is fixed again by the hand-tightening bolt.
[0010] In a possible embodiment, connecting ears are provided on both sides of one end of each pressure plate, each connecting ear is welded and fixed to the outer wall of the air inlet body, a pin is passed through one end of each pressure plate, both ends of each pin are welded and fixed to the connecting ears on both sides of the corresponding pressure plate, and one end of each pressure plate is rotatably connected to the pin; by adopting this structure, one end of each pressure plate can be reliably connected to the air inlet body through the pin and the connecting ear. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0012] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;
[0013] Figure 3 for Figure 2 Schematic diagram of the structure after enlargement at A in the middle. DETAILED DESCRIPTION
[0014] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.
[0015] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0016] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0017] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0018] See also Figure 1-3 As shown, an embodiment of the present application discloses a side-flow industrial centrifugal blower air inlet filter assembly, including an air inlet body 1 which is open at one end and has a cavity arranged inside, the open end of the air inlet body 1 is used to be connected to the air inlet end of the industrial centrifugal blower, an air inlet channel 11 is arranged on each side wall in the circumferential direction of the air inlet body 1, a filter unit is arranged on the outer side of each air inlet channel 11, and each filter unit is connected to the outer side wall of the air inlet body 1.
[0019] Each filter unit includes a pressing plate 2 and a filter element 3, each filter element 3 is arranged opposite to the air inlet channel 11 on the corresponding side, each filter element 3 is sleeved with a rubber ring 4, the inner peripheral wall of the rubber ring 4 is bonded and fixed to the outer peripheral wall of the filter element 3 and sealed, the pressing plate 2 is connected to the outer side wall of the air inlet body 1, each rubber ring 4 is pressed against the outer side wall of the air inlet body 1 through the pressing plate 2 on the corresponding side, each pressing plate 2 is provided with an air inlet hole group 21, each air inlet hole group 21 is arranged opposite to the filter element 3 on the corresponding side; through After adopting this filter unit, when the industrial centrifugal blower is working, the air in the external environment can flow into the industrial centrifugal blower through the air inlet hole group, the filter element and the air inlet body in sequence. When the air flows through the filter element, the filter element can filter the dust in the air; in addition, under the action of the rubber ring, the outer edge of the filter element and the gap between the pressure plate and the air inlet body can be sealed, that is, the air that has not been filtered by the filter element can be prevented from entering the air inlet body through the gap between the outer edge of the filter element and the pressure plate and the air inlet body.
[0020] An annular slot 41 is provided on the outer end surface of the rubber ring 4, and an annular plug block 22 is provided on the inner end surface of the pressure plate 2. The annular plug block 22 is inserted into the annular slot 41 and tightly fits with the annular slot 41. By adopting this structure, when the filter element with the rubber ring is assembled with the pressure plate, the annular slot on the rubber ring can be matched and plugged with the annular plug block on the pressure plate, thereby realizing the positioning and limiting effect of the filter element, that is, it can bring convenience to the assembly of the filter element and the pressure plate, and can improve the reliability of the filter element and the pressure plate after assembly.
[0021] An annular boss 12 is provided on each outer side wall in the circumferential direction of the air inlet body 1, and the inner end portion of each rubber ring 4 is embedded in the annular boss 12 on the corresponding side; by adopting this structure, after the rubber ring is pressed onto the outer side wall of the air inlet body by the pressure plate, the inner end portion of each rubber ring can be embedded in the annular boss on the corresponding side, that is, it can further play a limiting role on the rubber ring and the filter element, thereby improving the reliability of the rubber ring after being pressed onto the outer side wall of the air inlet body by the pressure plate, and can further improve the reliability of the rubber ring and the filter element being assembled between the pressure plate and the air inlet body.
[0022] One end of each pressing plate 2 is rotatably connected to the outer side wall of the air inlet body 1, and the other end of each pressing plate 2 is fastened to the air inlet body 1 by a hand-tightening bolt 5. A threaded hole 13 corresponding to each hand-tightening bolt 5 is provided on the outer side wall of the air inlet body 1, and the screw portion of each hand-tightening bolt 5 is movably penetrated through the other end of the pressing plate 2 and is threadedly connected to the threaded hole 13 at the corresponding position; after adopting this structure, when the hand-tightening bolt is turned to make the screw portion of the hand-tightening bolt disengage from the threaded hole, the pressing plate can be rotated and opened relative to the air inlet body, at this time, the filter element with the rubber ring can be replaced, after the filter element is replaced, the pressing plate is rotated so that the pressing plate presses the rubber ring against the outer side wall of the air inlet body, and the pressing plate is fixed again by the hand-tightening bolt; in addition, during the use of the utility model, it is only necessary to replace the filter element with the rubber ring regularly.
[0023] Connecting ears 6 are provided on both sides of one end of each pressing plate 2, and each connecting ear 6 is welded and fixed on the outer wall of the air inlet body 1. A pin shaft 7 is passed through one end of each pressing plate 2, and both ends of each pin shaft 7 are welded and fixed to the connecting ears 6 located on both sides of the corresponding pressing plate 2, and one end of each pressing plate 2 is rotatably connected to the pin shaft 7. By adopting this structure, one end of each pressing plate can be reliably connected to the air inlet body through the pin shaft and the connecting ear.
[0024] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A side-flow industrial centrifugal blower air inlet filter assembly, comprising an air inlet body (1) with an opening at one end and a cavity arranged inside, wherein the open end of the air inlet body (1) is used to connect to the air inlet end of the industrial centrifugal blower, characterized in that: An air inlet channel (11) is provided on each side wall in the circumferential direction of the air inlet body (1), and a filter unit is provided on the outer side of each air inlet channel (11), and each filter unit is connected to the outer side wall of the air inlet body (1); each filter unit comprises a pressing plate (2) and a filter element (3), and each filter element (3) is arranged opposite to the air inlet channel (11) on the corresponding side; each filter element (3) is sleeved with a rubber ring (4), and the inner peripheral wall of the rubber ring (4) is bonded and fixed to the outer peripheral wall of the filter element (3) and sealed; the pressing plate (2) is connected to the outer side wall of the air inlet body (1), and each rubber ring (4) is pressed against the outer side wall of the air inlet body (1) through the pressing plate (2) on the corresponding side; each pressing plate (2) is provided with an air inlet hole group (21), and each air inlet hole group (21) is arranged opposite to the filter element (3) on the corresponding side.
2. The side-flow industrial blower air inlet filter assembly according to claim 1, characterized in that: An annular slot (41) is provided on the outer end surface of the rubber ring (4), and an annular insert block (22) is provided on the inner end surface of the pressure plate (2); the annular insert block (22) is inserted into the annular slot (41) and is tightly fitted with the annular slot (41).
3. The side-flow industrial blower air inlet filter assembly according to claim 2 is characterized in that: An annular boss (12) is provided on each outer side wall of the air inlet body (1) in the circumferential direction, and the inner end of each rubber ring (4) is embedded in the annular boss (12) on the corresponding side.
4. The side-flow industrial blower air inlet filter assembly according to claim 2 or 3, characterized in that: One end of each of the pressure plates (2) is rotatably connected to the outer wall of the air inlet body (1), and the other end of each of the pressure plates (2) is fastened to the air inlet body (1) via a hand-tightening bolt (5). A threaded hole (13) corresponding to each of the hand-tightening bolts (5) is provided on the outer wall of the air inlet body (1), and the screw portion of each of the hand-tightening bolts (5) is movably penetrated through the other end of the pressure plate (2) and is threadedly connected to the threaded hole (13) at the corresponding position.
5. The side-flow industrial blower air inlet filter assembly according to claim 4, characterized in that: Each of the pressing plates (2) is provided with connecting ears (6) on both sides of one end, and each of the connecting ears (6) is welded and fixed to the outer wall of the air inlet body (1). A pin shaft (7) is passed through one end of each of the pressing plates (2), and both ends of each of the pin shafts (7) are welded and fixed to the connecting ears (6) located on both sides of the corresponding pressing plate (2). One end of each of the pressing plates (2) is rotatably connected to the pin shaft (7).