Inlet air filtering structure of magnetic suspension air blower

Abstract

The utility model relates to an air inlet filtering structure of a magnetic suspension air blower. The air inlet filtering structure comprises an air blowing volute, an air blowing impeller is arranged in the air blowing volute, an air inlet pipe is arranged on one side of the air blowing volute, a filter cartridge is arranged at one end of the air inlet pipe, a dustproof net is arranged at the end of the filter cartridge, and a cleaning assembly is arranged in the filter cartridge. The utility model relates to the technical field of air inlet filtering equipment of an air blower. According to the air inlet filtering structure of the magnetic suspension air blower, a connecting sleeve and a sliding baffle are pushed to move through rotation of a force storage screw, so that a communicating piston gradually compresses air in a sealing sleeve, and when the air pressure reaches a certain degree, the air in the sealing sleeve is exhausted to impact the inner side of a dustproof net; dust accumulated on the outer side of the dustproof net can be effectively pushed to fall off, and the purposes of cleaning the dustproof net and guaranteeing the air passing ability of the dustproof net are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air inlet filter equipment of air blower, and particularly to an air inlet filter structure of a magnetic suspension air blower. BACKGROUND

[0002] The magnetic suspension air blower is a mechanical device for conveying gas, which mainly sucks in air through an impeller and a volute and rapidly ejects the air.

[0003] Most existing magnetic suspension air blowers are provided with filter screens at air inlet pipes to filter the air conveyed into the interior, so that the air blown into a room is cleaner, but dust and impurities accumulated on the filter screens over a long period of time.

[0004] In the prior art, a scraper is usually externally arranged to scrape off the dust, but the scraper is likely to squeeze the dust into the filter screen when it is pushed, which causes the dust to enter the interior of the volute and results in the problem of dust accumulation in the volute or dust discharge through the air duct. SUMMARY

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an air inlet filter structure of a magnetic suspension air blower to solve the technical problems mentioned in the background.

[0006] The above technical purpose of the utility model is achieved by the following technical scheme.

[0007] The air inlet filter structure of the magnetic suspension air blower comprises an air blowing volute, an air blowing impeller arranged in the interior of the air blowing volute, an air inlet pipe arranged on one side of the air blowing volute, a filter cylinder arranged at one end of the air inlet pipe, a dust screen arranged at the end of the filter cylinder, and a cleaning assembly arranged in the interior of the filter cylinder.

[0008] The cleaning assembly comprises a fixed baffle and a sliding baffle, the fixed baffle is fixedly connected with the filter cylinder, a plurality of air vents are formed in the interior of the fixed baffle, a plurality of sealing sleeves are arranged in the interior of the fixed baffle, a connecting rod is rotatably arranged at the center of the fixed baffle, a force storage screw rod is arranged on one side of the connecting rod, a force storage assembly is arranged on the outer circumferential wall of the force storage screw rod, the sliding baffle is sleeved on the outer circumferential wall of the force storage screw rod, a connecting sleeve is arranged at the center of the sliding baffle, a threaded assembly is arranged in the interior of the connecting sleeve, and a communication piston is arranged at the position corresponding to the sealing sleeve of the sliding baffle.

[0009] Further, the force storage assembly comprises a tension spring and a shaft sleeve, one end of the tension spring is rotatably connected with the connecting sleeve, the shaft sleeve is fixed at the other end of the tension spring, and the shaft sleeve is fixedly connected with the end of the force storage screw rod away from the fixed baffle.

[0010] Further, the end wall of the shaft sleeve is provided with a spline groove, and the middle shaft end of the air blowing impeller is provided with a spline shaft matched with the spline groove.

[0011] Further, the threaded assembly comprises a sliding groove, which is arranged in the inner part of the connecting sleeve and corresponds to the screw groove of the force storage screw, and the inner bottom end of the sliding groove is provided with a supporting spring, the bottom end of the supporting spring is connected with a sliding block, and the sliding block is inserted into the screw groove of the force storage screw under the pushing of the supporting spring.

[0012] Further, the communication piston is inserted into the sealing sleeve, and the end, away from the sealing sleeve, of the communication piston is provided with a one-way valve, and the through direction of the two one-way valves is towards the dust screen.

[0013] Further, the outer peripheral wall of the sliding baffle is provided with a positioning sliding block, and the inner part of the filter cartridge is provided with a guide rail in sliding cooperation with the positioning sliding block.

[0014] Further, the screw groove of the force storage screw is provided with an inclined table at the end close to the fixed baffle.

[0015] In summary, the utility model has at least one of the following beneficial technical effects:

[0016] 1. The air inlet filter structure of the magnetic suspension air blower, through the rotation of the force storage screw, the connecting sleeve and the sliding baffle are pushed to move, the communication piston gradually compresses the gas in the inner part of the sealing sleeve, when the air pressure reaches a certain degree, the gas in the inner part of the sealing sleeve is discharged, the inner side of the dust screen is impacted, the dust accumulated on the outer side of the dust screen can be effectively pushed off, the dust screen is cleaned, and the air passing property is ensured;

[0017] 2. The air inlet filter structure of the magnetic suspension air blower, after the air in the inner part of the sealing sleeve is discharged, under the pushing of the force storage screw, the connecting sleeve gradually corresponds to the position of the inclined table, the sliding block is scooped up by the inclined table, and the sliding block is received into the inner part of the sliding groove, at this time, the potential energy of the tension spring is released, the sliding baffle can be quickly pulled back, the purpose of resetting the sliding baffle is achieved, and in the resetting process of the sliding baffle, air enters the inner part of the sealing sleeve through the one-way valve at the tail end of the communication piston, so that the cleaning assembly can be recycled. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.

[0019] Figure 1 It is a structural schematic view of the air inlet filtering structure of the magnetic suspension air blower.

[0020] Figure 2 It is a structural schematic view of the cleaning mechanism of the air inlet filtering structure of the magnetic suspension air blower.

[0021] Figure 3 It is a structural schematic view of the force storage assembly of the air inlet filtering structure of the magnetic suspension air blower.

[0022] Figure 4 It is a structural schematic view of the sealing sleeve and the positioning piston of the air inlet filtering structure of the magnetic suspension air blower.

[0023] Figure 5 It is a structural schematic view of the force storage screw rod of the air inlet filtering structure of the magnetic suspension air blower.

[0024] In the figure, 1, air blower scroll case; 2, air blower impeller; 3, air inlet pipe; 4, filter cartridge; 5, dust screen; 6, cleaning assembly; 61, fixed baffle; 62, sliding baffle; 63, air vent groove; 64, sealing sleeve; 65, connecting rod; 66, force storage screw rod; 67, communication piston; 68, one-way valve; 69, positioning sliding block; 610, inclined table; 7, force storage assembly; 71, tension spring; 72, shaft sleeve; 73, spline groove; 8, connecting sleeve; 9, threaded assembly; 91, sliding groove; 92, supporting spring; 93, sliding block. DETAILED DESCRIPTION

[0025] The utility model makes further detailed description in combination with the drawings.

[0026] Embodiment:

[0027] Reference Figure 1 - Figure 5 The utility model discloses a kind of air inlet filtering structure of magnetic suspension air blower, including air blower scroll case 1, the inside of air blower scroll case 1 is provided with air blower impeller 2, the side of air blower scroll case 1 is provided with air inlet pipe 3, one end of air inlet pipe 3 is provided with filter cartridge 4, the end of filter cartridge 4 is provided with dust screen 5, the inside of filter cartridge 4 is provided with cleaning assembly 6;

[0028] The cleaning assembly 6 comprises a fixed baffle 61 and a sliding baffle 62, the fixed baffle 61 is fixedly connected with the filter cartridge 4, a plurality of air vent grooves 63 are formed in the fixed baffle 61, a plurality of sealing sleeves 64 are arranged in the fixed baffle 61, a connecting rod 65 is rotatably arranged at the axis of the fixed baffle 61, a force storage screw rod 66 is arranged on one side of the connecting rod 65, a force storage assembly 7 is arranged on the outer peripheral wall of the force storage screw rod 66, the sliding baffle 62 is sleeved on the outer peripheral wall of the force storage screw rod 66, a connecting sleeve 8 is arranged at the axis of the sliding baffle 62, a threaded assembly 9 is arranged in the connecting sleeve 8, and a communication piston 67 is arranged at the position corresponding to the sealing sleeve 64 of the sliding baffle 62.

[0029] In use, as shown in Figure 1 and Figure 2 , air is sucked into the inside of the air blowing scroll 1 through the air inlet pipe 3 by the rotation of the air blowing impeller 2, and is discharged through the air outlet pipe on the side of the air blowing scroll 1, and the dust screen 5 is used for filtering large particles of dust in the air, so that the blown air is more clean and clean.

[0030] When cleaning the dust on the surface of the dust screen 5, first, the rotation of the force storage screw rod 66 pushes the connecting sleeve 8 and the sliding baffle 62 to move, so that the communication piston 67 arranged in the sliding baffle 62 slides into the inside of the sealing sleeve 64, and gradually compresses the gas in the inside of the sealing sleeve 64. When the air pressure reaches a certain degree, the gas in the inside of the sealing sleeve 64 is discharged to impact the inside of the dust screen 5. Since the dust is mostly located on the outside of the dust screen 5 when it accumulates, when air is blown out from the inside, the accumulated dust can be effectively pushed off, thereby cleaning the dust screen 5 and ensuring the air permeability.

[0031] Compared with the prior art, the dust outside can be effectively prevented from being squeezed into the inside of the dust screen 5, so that the dust enters the inside of the air blowing scroll 1.

[0032] In a further preferred embodiment of the utility model, as shown in Figure 3 , the force storage assembly 7 comprises a tension spring 71 and a shaft sleeve 72, one end of the tension spring 71 is rotatably connected with the connecting sleeve 8, the shaft sleeve 72 is fixed at the other end of the tension spring 71, and the shaft sleeve 72 is fixedly connected with the end of the force storage screw rod 66 away from the fixed baffle 61.

[0033] In the embodiment, since the shaft sleeve 72 is fixedly connected with one end of the force storage screw rod 66, when the force storage screw rod 66 rotates, only the connecting sleeve 8 can be moved in cooperation with the threaded assembly 9 to achieve the purpose of lengthening the tension spring 71, as shown in Figure 3 and Figure 5 , so that the tension spring 71 continues to have potential energy to facilitate the rebound of the sliding baffle 62.

[0034] In further preferable embodiments of the present application, as shown in Figure 5 The end wall of the shaft sleeve 72 is provided with a spline groove 73, and the central shaft end of the blower impeller 2 is provided with a spline shaft matched with the spline groove 73.

[0035] In this embodiment, the spline groove 73 and the spline shaft are arranged to fixedly connect the shaft sleeve 72 and the central shaft of the blower impeller 2, so that the shaft sleeve 72 can be rotated with the blower impeller 2 during rotation, so as to rotate the force storage screw 66 fixedly connected with the shaft sleeve 72.

[0036] In further preferable embodiments of the present application, as shown in Figure 5 The threaded assembly 9 comprises a sliding groove 91 arranged in the inner part of the connecting sleeve 8, and the position of the sliding groove 91 corresponds to the screw groove of the force storage screw 66. The inner bottom end of the sliding groove 91 is provided with a supporting spring 92, and the bottom end of the supporting spring 92 is connected with a sliding block 93. The sliding block 93 is inserted into the screw groove under the pushing of the supporting spring 92.

[0037] In this embodiment, as shown in Figure 5 The sliding groove 91 is arranged to install the sliding block 93, and the sliding block 93 is pushed downward by the supporting spring 92 and inserted into the screw groove of the force storage screw 66. When the force storage screw 66 rotates, the sliding block 93 is pushed to move the connecting sleeve 8, so as to lengthen the tension spring 71.

[0038] In further preferable embodiments of the present application, as shown in Figure 4 The communication piston 67 is inserted into the inner part of the sealing sleeve 64, and the end of the communication piston 67 and the sealing sleeve 64 away from each other is provided with a one-way valve 68, and the through direction of the two one-way valves 68 is toward the dust screen 5.

[0039] In this embodiment, as shown in Figure 4 The air moves in the direction of the reference numeral 600. When the force storage screw 66 rotates and the sliding baffle 62 gradually approaches the fixed baffle 61, the communication piston 67 gradually compresses the air in the inner part of the sealing sleeve 64, so as to increase the air pressure in the inner part of the sealing sleeve 64. When the air pressure is greater than the elastic force of the spring arranged in the inner part of the one-way valve 68, the compressed air in the inner part is discharged, forming an air column with a certain impact force. At this time, the air column can wash the dust on the surface of the dust screen 5, so as to achieve the purpose of removing dust.

[0040] In further preferable embodiments of the present application, as shown in Figure 2 The outer peripheral wall of the sliding baffle 62 is provided with a positioning sliding block 69, and the inner part of the filter cylinder 4 is provided with a guide rail in sliding cooperation with the positioning sliding block 69.

[0041] In the embodiment, the positioning slider 69 is arranged to guide the sliding baffle 62 and prevent the sliding baffle 62 from rotating.

[0042] In the further preferable embodiment of the utility model, as shown in Figure 3 and Figure 5 The end of the screw groove of the force storage screw 66 close to the fixed baffle 61 is provided with an inclined table 610.

[0043] In the embodiment, when the sliding baffle 62 moves close to the fixed baffle 61, the air in the sealing sleeve 64 has been exhausted, and the connecting sleeve 8 gradually contacts the inclined table 610 under the pushing of the force storage screw 66. When the connecting sleeve 8 corresponds to the position of the inclined table 610, the sliding block 93 is lifted by the inclined table 610 and is received in the sliding groove 91. At this time, the sliding baffle 62 is quickly pulled back by the arrangement of the extension spring 71, and when the sliding baffle 62 is pulled back, the air enters the inside of the sealing sleeve 64 through the one-way valve 68 at the tail end of the connecting piston 67 to achieve the purpose of resetting the sliding baffle 62, so that the cleaning assembly 6 can be cyclically used to achieve the purpose of avoiding dust accumulation.

[0044] The implementation principle of the above embodiment is that the connecting sleeve 8 and the sliding baffle 62 are moved by the rotation of the force storage screw 66, the connecting piston 67 in the sliding baffle 62 slides into the inside of the sealing sleeve 64, and the air in the inside of the sealing sleeve 64 is gradually compressed. When the air pressure reaches a certain degree, the air in the inside of the sealing sleeve 64 is exhausted to impact the inside of the dust screen 5. Since the dust screen 5 is mostly located on the outside of the dust screen 5 when the dust accumulates, the dust accumulated on the outside of the dust screen 5 can be pushed off when the air on the inside is blown out.

[0045] The embodiments of the specific embodiment are preferable embodiments of the utility model, and are not limited to the protection scope of the utility model. Therefore, equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A structure for filtering air intake of a magnetic levitation blower, characterized by, The application relates to a dustproof filter, which comprises a blast impeller (2) arranged in a blast impeller casing (1), an air inlet pipe (3) arranged on one side of the blast impeller casing (1), a filter cylinder (4) arranged at one end of the air inlet pipe (3), a dustproof screen (5) arranged at the end of the filter cylinder (4), and a cleaning assembly (6) arranged in the filter cylinder (4). The cleaning assembly (6) comprises a fixed baffle (61) and a sliding baffle (62), the fixed baffle (61) is fixedly connected with the filter cylinder (4), a plurality of air vent grooves (63) are formed in the fixed baffle (61), a plurality of sealing sleeves (64) are arranged in the fixed baffle (61), a connecting rod (65) is rotatably arranged at the center of the fixed baffle (61), a force storage screw rod (66) is arranged on one side of the connecting rod (65), a force storage assembly (7) is arranged on the outer circumferential wall of the force storage screw rod (66), the sliding baffle (62) is sleeved on the outer circumferential wall of the force storage screw rod (66), a connecting sleeve (8) is arranged at the center of the sliding baffle (62), a threaded assembly (9) is arranged in the connecting sleeve (8), and a communication piston (67) is arranged at the position corresponding to the sealing sleeve (64) of the sliding baffle (62).

2. The air intake filter structure of the magnetic levitation blower according to claim 1, characterized in that, The force storage assembly (7) comprises a tension spring (71) and a shaft sleeve (72), one end of the tension spring (71) is rotatably connected with the connecting sleeve (8), the shaft sleeve (72) is fixed at the other end of the tension spring (71), and the shaft sleeve (72) is fixedly connected with the end of the force storage screw rod (66) away from the fixed baffle (61).

3. The air intake filter structure of the magnetic levitation blower according to claim 2, characterized in that, A spline groove (73) is formed in the end wall of the shaft sleeve (72), and a spline shaft matched with the spline groove (73) is arranged at the middle shaft end of the blast impeller (2).

4. The air intake filter structure of the magnetic levitation blower according to claim 3, characterized in that, The threaded assembly (9) comprises a sliding groove (91) formed in the connecting sleeve (8), the position of the sliding groove (91) corresponds to the screw groove of the force storage screw rod (66), a supporting spring (92) is arranged at the bottom end of the sliding groove (91), a sliding block (93) is connected to the bottom end of the supporting spring (92), and the sliding block (93) is inserted into the screw groove of the force storage screw rod (66) under the pushing of the supporting spring (92).

5. The air intake filter structure of the magnetic levitation blower according to claim 4, characterized in that, The communication piston (67) is inserted into the sealing sleeve (64), one-way valves (68) are arranged at the ends of the communication piston (67) and the sealing sleeve (64) away from each other, and the through directions of the two one-way valves (68) are both towards the dustproof screen (5).

6. The air intake filter structure of the magnetic levitation blower according to claim 5, wherein A positioning sliding block (69) is arranged on the outer circumferential wall of the sliding baffle (62), and a guide rail matched with the positioning sliding block (69) is arranged in the filter cylinder (4).

7. The air intake filter structure of the magnetic levitation blower according to claim 6, characterized in that, An inclined table (610) is arranged at the end of the screw groove of the force storage screw rod (66) close to the fixed baffle (61).

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