Fan filtering protection device

Abstract

The utility model relates to the technical field of fan filtering protection, in particular to a fan filtering protection device, which comprises an air inlet part, and is characterized in that a primary filtering part is inserted into one side of the air inlet part, a fan is screwed above the primary filtering part, a secondary filtering part is screwed on one side, far away from the air inlet part, of the fan, and a secondary filtering part is screwed above the secondary filtering part. One side, far away from the fan, of the re-filtering part is in threaded connection with an air outlet part; by arranging a first bolt, a second bolt, a third bolt, a first connecting plate and a second connecting plate, all parts of the device can be detached, so that a worker can clean the interior of the device, and the situation that after the device is used for a period of time, too much dust is accumulated in the device, and normal work of the fan is affected is prevented; the primary filtering part and the secondary filtering part are arranged, so that the content of dust in air flow blown out by the fan is effectively reduced; and by arranging a second bolt and a blocking piece, the size of the air outlet can be controlled by changing the position of the blocking piece, and therefore the air speed is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of fan filtering protection, in particular to a fan filtering protection device. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fan is the customary abbreviation for gas compression and gas delivery machinery in China. The fans usually include ventilators, blowers, and wind turbines.

[0003] Fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and conveying of grains, wind tunnel wind sources and inflation and propulsion of hovercraft, etc.

[0004] During the operation of the fan, as time goes by, a lot of dust will often accumulate in the fan, which not only affects the working efficiency of the fan, but also affects the normal operation of workers, especially the fans working in boiler rooms and mines, because the exhaust gas often contains a lot of dust or various suspended matter.

[0005] At present, the filtering protection devices of common fans on the market are often complicated to disassemble. After using them for a period of time, a large amount of dust accumulates inside, which will affect the normal use of the fan. In addition, the filtering means are often relatively simple and the filtering effect is average.

[0006] Therefore, the present application provides a fan filter protection device to overcome the defects of the prior art. Utility Model Content

[0007] The utility model aims to solve the problems that the existing fan filter protection device is often complicated to disassemble, the filtering means are often single, and the filtering effect is general.

[0008] The technical solution of the utility model provides a fan filtering protection device, including an air inlet part, a primary filter part is inserted into one side of the air inlet part, a fan is screwed on the top of the primary filter part, a secondary filter part is screwed on the side of the fan away from the air inlet part, and an air outlet part is screwed on the side of the secondary filter part away from the fan.

[0009] As a preferred technical solution, a metal protective net is screwed on the side of the air inlet away from the fan, a slot is provided on the bottom side of the air inlet close to the fan, a plug-in part is fixedly connected to the side of the primary filter part close to the air inlet, the slot and the plug-in part are plugged into each other, and a first bolt is screwed between the slot and the plug-in part; the metal protective net is used to prevent workers from accidentally putting their arms into the air inlet, and the metal protective net can block larger debris to prevent larger debris from entering the device, and has a certain filtering and protective effect, and the first bolt can prevent the plug-in part from detaching from the air inlet to avoid affecting the filtering effect.

[0010] As a preferred technical solution, the primary filter part includes a primary filter part shell, a first baffle and a plurality of evenly distributed second baffles and a third baffle are fixedly connected to the interior of the primary filter part shell, a first clamping part and a second clamping part are fixedly connected to both side walls inside the primary filter part shell, a clamping plate is clamped between each of the first clamping part and the second clamping part, and a filter is fixedly connected between the clamping plates; the first baffle is used to prevent dust accumulated inside the primary filter part from escaping from the primary filter part when the primary filter part moves, the second baffle and the third baffle are used to block dust in the airflow, and the filter is used to filter dust to reduce the amount of dust entering the fan.

[0011] As a preferred technical solution, the fan includes a fan casing, a motor is fixedly connected to the inner wall of the fan casing close to the air inlet, the motor is connected to the fan blades through a rotating shaft, a block is fixedly connected to the upper inner wall of the fan away from the air inlet, and a re-filtration portion is provided on the side of the block away from the air inlet.

[0012] As a preferred technical solution, a filter box is provided inside the re-filtration part, the top of the filter box is flush with the inner bottom wall of the air outlet part, and a baffle is fixedly connected to the top of the filter box, and the top of the baffle is in contact with the inner top wall of the re-filtration part; the filter box is used to filter the airflow blown out by the fan again to further reduce debris in the airflow, and the baffle is used to ensure that the airflow must be filtered by the filter box before it can flow out.

[0013] As a preferred technical solution, the air outlet includes an air outlet shell, a baffle is provided inside the air outlet shell, a second bolt is provided on the air outlet shell, the second bolt passes through the air outlet shell and the baffle and is screwed with the air outlet shell and the baffle; by changing the position of the baffle, the size of the air outlet can be controlled, thereby controlling the wind speed.

[0014] As a preferred technical solution, a first connecting plate is provided at the junction of the primary filter part, the fan and the secondary filter part, and at least three third bolts are provided on the first connecting plate. The third bolts are used to thread the first connecting plate with the primary filter part, the fan and the secondary filter part.

[0015] As a preferred technical solution, a second connecting plate is provided at the junction of the re-filtration part and the air outlet part, and at least two fourth bolts are provided on the second connecting plate. The fourth bolts are used to threadably connect the second connecting plate with the re-filtration part and the air outlet part.

[0016] The beneficial effects of a fan filter protection device provided by the utility model are:

[0017] The utility model provides the first bolt, the second bolt, the third bolt, the first connecting plate and the second connecting plate, so that each part of the device can be disassembled, so that workers can clean the inside of the device, and prevent excessive dust from accumulating inside after a period of use, thereby affecting the normal operation of the fan;

[0018] By setting a metal filter, a primary filter and a secondary filter, the metal filter can filter out larger solids and suspended matter, the primary filter can filter the dust carried in the external airflow before entering the fan, and the secondary filter can filter the airflow blown out by the fan, effectively reducing the dust content in the airflow blown out by the fan, providing more filtering means and enhancing the filtering effect;

[0019] By arranging the second bolt and the baffle, the device can control the size of the air outlet by changing the position of the baffle, thereby controlling the wind speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the first embodiment of the utility model;

[0021] Figure 2 It is a front view of the first embodiment of the utility model;

[0022] Figure 3 It is a cross-sectional view of the first embodiment of the utility model;

[0023] Figure 4 This is a cross-sectional view of the primary filter portion of the first embodiment of the utility model;

[0024] Figure 5 This is the first embodiment of the utility model Figure 3 A magnified view of part A;

[0025] Figure 6 This is the first embodiment of the utility model Figure 3 A magnified view of part B;

[0026] Figure 7 This is the first embodiment of the utility model Figure 4 Enlarged view of part C.

[0027] Among them, 1. air inlet; 11. metal protective net; 12. first bolt; 13. first lower slot; 2. primary filter; 21. primary filter housing; 22. first baffle; 23. second baffle; 24. third baffle; 25. first clamping part; 26. second clamping part; 27. clamping plate; 28. filter; 29. ​​plug-in part; 3. fan; 31. fan housing; 32. motor; 33. fan blade; 34. block; 4. secondary filter; 41. filter box; 42. baffle; 5. air outlet; 51. air outlet housing; 52. baffle; 53. second bolt; 6. first connecting plate; 61. third bolt; 7. second connecting plate; 71. fourth bolt. DETAILED DESCRIPTION

[0028] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below in conjunction with specific diagrams; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the utility model.

[0029] Embodiment 1

[0030] As attached Figure 1 To Attachment Figure 3 As shown: a fan filtering protection device, comprising an air inlet part 1, a primary filter part 2 is inserted into one side of the air inlet part 1, a groove is formed on the top of the primary filter part 2 away from the air inlet part 1, a fan 3 is screwed on the groove, a secondary filter part 4 is screwed on the side of the fan 3 away from the air inlet part 1, and an air outlet part 5 is screwed on the side of the secondary filter part 4 away from the fan 3.

[0031] As attached Figure 1 To Attachment Figure 3 And attached Figure 5 As shown: a metal protective mesh 11 is screwed on the side of the air inlet 1 away from the fan 3, and the metal protective mesh 11 is used to prevent people and objects from entering the air inlet 1 by mistake. In addition, the metal protective mesh 11 can also play a role in screening and filtering, preventing larger solid particles from entering the device, reducing the pressure of the primary filter 2 and the secondary filter 4 on filtering dust, and a groove is provided at the junction of the top of the air inlet 1 and the fan 3. A plug-in part 29 is fixedly connected to the side of the primary filter 2 close to the air inlet 1, and the groove and the plug-in part 29 are plugged together. A first bolt 12 is also screwed between the groove and the plug-in part 29, and the first bolt 12 is used to prevent the plug-in part 29 from being separated from the groove at the bottom of the air inlet 1.

[0032] As attached Figure 1 To Attachment Figure 5 And attached Figure 7As shown: the primary filter 2 includes a primary filter housing 21, and a first baffle 22, a second baffle 23 and a third baffle 24 are fixedly connected inside the primary filter housing 21. The first baffle 22 is mainly used to prevent the accumulated dust in the primary filter 2 from escaping from the primary filter 2 when the primary filter 2 moves. The first clamping portion 25 and the second clamping portion 26 are fixedly connected to the two side walls inside the primary filter housing 21. The first clamping portion 25 and the second clamping portion 26 are located above the first baffle 22, the second baffle 23 and the third baffle 24. Each of the first clamping portions 2 5 and the second clamping part 26 are clamped with a clamping plate 27, and a filter 28 is fixedly connected between the clamping plates 27. The filter 28 is used to preliminarily filter the dust in the external airflow before the external airflow enters the fan 3. In this device, there is a certain inclination angle between the first clamping part 25 and the second clamping part 26 and the horizontal plane, and the inclination angle between the first clamping part 25 and the horizontal plane is smaller than the inclination angle between the second clamping part 26 and the horizontal plane. The advantage of such a setting is that it can prevent too much dust from accumulating on the clamping part, which is not easy to clean.

[0033] As attached Figure 1 To Attachment Figure 3 And attached Figure 5 As shown: the fan 3 includes a fan casing 31, a motor 32 is fixedly connected to the inner wall of the fan casing 31 close to the air inlet portion 1, the motor 32 is connected to the fan blades 33 through a rotating shaft transmission, and a stopper 34 is fixedly connected to the upper inner wall of the fan 3 away from the air inlet portion 1, the height of the bottom of the stopper 34 is lower than the height of the inner top wall of the re-filter portion 4, the side of the stopper 34 close to the fan blades 33 is streamlined, and the side of the stopper 34 away from the air inlet portion 1 is provided with the re-filter portion 4; the streamlined stopper 34 is conducive to reducing wind resistance, so that the wind flow blown out by the fan blades 33 can enter the re-filter portion 4 along the stopper 34.

[0034] As attached Figure 1 To Attachment Figure 3 And attached Figure 6 As shown: a filter box 41 is provided inside the re-filtration part 4, and the top of the filter box 41 is flush with the inner bottom wall of the air outlet part 5. The filter box 41 is provided with filter holes only on its upper top plate and the side plate close to the stopper 34. The diameter of the filter hole on the upper top plate is smaller than the diameter of the filter hole on the side plate. This is to ensure that the wind flow blown out by the fan blades 33 needs to pass through the filter box 41 to enter the air outlet part 5. A baffle 42 is fixedly connected to the top of the filter box 41, and the top of the baffle 42 is in contact with the inner top wall of the re-filtration part 4; the filter box 41 is used to filter the wind flow blown out by the fan 3 again to further reduce the debris in the wind flow. The baffle 42 requires the wind flow to be filtered by the filter box before it can flow out.

[0035] The air outlet 5 includes an air outlet shell 51, a baffle 52 is provided inside the air outlet shell 51, and the baffle 52 can only block half of the space of the air outlet 5 at most. A second bolt 53 is provided on the air outlet shell 51, and the second bolt 53 passes through the air outlet shell 51 and the baffle 52 and is screwed with the air outlet shell 51 and the baffle 52.

[0036] As attached Figure 1 To Attachment Figure 3 As shown: a first connecting plate 6 is provided at the junction of the primary filter part 2, the fan 3 and the secondary filter part 4, and at least three third bolts 61 are provided on the first connecting plate 6. The third bolts 61 are used to threadably connect the first connecting plate 6 with the primary filter part 2, the fan 3 and the secondary filter part 4.

[0037] A second connecting plate 7 is provided at the junction of the re-filtration part 4 and the air outlet part 5, and at least two fourth bolts 71 are provided on the second connecting plate 7, one of the fourth bolts 71 is threadedly connected to the second connecting plate 7, the re-filtration part 4 and the filter box 41, and the other fourth bolt 71 is threadedly connected to the second connecting plate 7 and the air outlet part 5. The fourth bolts 71 are used to threadably connect the second connecting plate 7 to the re-filtration part 4 and the air outlet part 5.

[0038] Working mode: External airflow enters the air inlet 1 from the metal filter 11. The metal protective mesh 11 prevents larger solid particles from entering the device and prevents human hands from accidentally reaching into the air inlet 1. Then the external airflow enters the primary filter 2. After being blocked by the second baffle 23, the third baffle 24 and the filter 28, most of the dust is retained in the primary filter 2. The airflow after primary filtration enters the fan 3 from the slot at the top of the primary filter 2. The fan blades 33 blow out the airflow, which enters the air outlet 5 after secondary filtration by the filter box 41. By adjusting the position of the baffle 52, the airflow velocity can be adjusted without changing the gear position of the fan 3.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the content of the patent application scope of the present invention should fall within the technical scope of the present invention.

Claims

1. A fan filter protection device, comprising an air inlet portion (1), characterized in that: A primary filter (2) is plugged into one side of the air inlet (1), a fan (3) is screwed onto the top of the primary filter (2), a secondary filter (4) is screwed onto the side of the fan (3) away from the air inlet (1), and an air outlet (5) is screwed onto the side of the secondary filter (4) away from the fan (3).

2. A fan filter protection device according to claim 1, characterized in that: A metal protective net (11) is screwed to the side of the air inlet portion (1) away from the fan (3); a slot is provided at the bottom of the air inlet portion (1) near the fan (3); a plug-in portion (29) is fixedly connected to the side of the primary filter portion (2) near the air inlet portion (1); the slot is plugged into the plug-in portion (29); and a first bolt (12) is screwed to the slot and the plug-in portion (29).

3. A fan filter protection device according to claim 2, characterized in that: The primary filter portion (2) comprises a primary filter portion shell (21), a first baffle (22) and a plurality of evenly arranged second baffles (23) and a third baffle (24) are fixedly connected inside the primary filter portion shell (21), a first clamping portion (25) and a second clamping portion (26) are fixedly connected on both side walls inside the primary filter portion shell (21), a clamping plate (27) is clamped between each of the first clamping portion (25) and the second clamping portion (26), and a filter screen (28) is fixedly connected between the clamping plates (27).

4. A fan filter protection device according to claim 1, characterized in that: The fan (3) comprises a fan housing (31), a motor (32) being fixedly connected to an inner wall of the fan housing (31) close to the air inlet portion (1), the motor (32) being connected to a fan blade (33) via a rotating shaft transmission, a block (34) being fixedly connected to an upper inner wall of the fan (3) on a side away from the air inlet portion (1), and a secondary filter portion (4) being provided on a side of the block (34) away from the air inlet portion (1).

5. A fan filter protection device according to claim 1, characterized in that: A filter box (41) is provided inside the re-filtering portion (4); the top of the filter box (41) is flush with the inner bottom wall of the air outlet portion (5); a baffle (42) is fixedly connected to the top of the filter box (41); and the top of the baffle (42) is in contact with the inner top wall of the re-filtering portion (4).

6. A fan filter protection device according to claim 1, characterized in that: The air outlet portion (5) comprises an air outlet portion housing (51), a baffle (52) is provided inside the air outlet portion housing (51), a second bolt (53) is provided on the air outlet portion housing (51), and the second bolt (53) passes through the air outlet portion housing (51) and the baffle (52) and is screwed to the air outlet portion housing (51) and the baffle (52).

7. A fan filter protection device according to claim 1, characterized in that: A first connecting plate (6) is provided at the junction of the primary filter section (2), the fan (3) and the secondary filter section (4); at least three third bolts (61) are provided on the first connecting plate (6); the third bolts (61) are used to threadably connect the first connecting plate (6) with the primary filter section (2), the fan (3) and the secondary filter section (4).

8. A fan filter protection device according to claim 1, characterized in that: A second connecting plate (7) is provided at the junction of the re-filtering portion (4) and the air outlet portion (5), and at least two fourth bolts (71) are provided on the second connecting plate (7), and the fourth bolts (71) are used to threadably connect the second connecting plate (7) with the re-filtering portion (4) and the air outlet portion (5).

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