Energy-saving stable air blower

Abstract

The utility model discloses an energy-saving stable air blower, which comprises a shell, fan blades and a double-shaft motor, and further comprises a protective cover, a miniature reduction gear box and a scraping mechanism, the miniature reduction gear box is fixed in the shell at the rear end of the motor, and an output shaft at the front end of the motor is connected with the fan blades. A rear end output shaft of the motor is connected with an input end of the miniature reduction gear box, the protecting cover is fixed at the rear end of the shell, a filter screen is arranged on the inner circumference of the protecting cover, the scraping mechanism comprises a support and a rotating shaft rotating in the support, one end of the rotating shaft is connected with an output end of the miniature reduction gear box, and a plurality of scraping blades are fixed at the other end of the rotating shaft. The scraping blades are obliquely arranged, a plurality of rows of bristles are further arranged at one end, facing the filter screen, of each scraping blade, and the bristles abut against the filter screen, the device works more stably, the configured scraping mechanism does not need to be additionally provided with a power device, and the device further has the advantages that energy is saved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to an energy-saving and stable blower. Background Art

[0002] In the prior art, axial flow fans are also used as blowers and are widely used; however, since their air inlets and air outlets are located at both ends of the cylindrical shell and lack protection, when they are used in relatively harsh environments, large particles of impurities are often sucked into the air inlet, which can easily damage their motors and fan blades, resulting in unstable operation; and if a protective net or other device is provided at the rear end, the protective net needs to be cleaned regularly to prevent fibers and dust from clogging the mesh, which makes it inconvenient to use. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned deficiencies of the prior art and provide a more stable blower, and the scraping mechanism configured therein also has the advantage of not requiring additional power devices.

[0004] The technical solution of the utility model is: an energy-saving and stable blower, including a shell, a fan blade and a motor, and also includes a protective cover, a micro reduction gear box and a scraping mechanism;

[0005] The motor is a dual-shaft motor, the micro reduction gearbox is fixed in a housing at the rear end of the motor, the front output shaft of the motor is connected to the fan blades, and the rear output shaft of the motor is connected to the input end of the micro reduction gearbox;

[0006] The protective cover is fixed at the rear end of the shell, and a filter is provided on the inner periphery of the protective cover. The scraping mechanism includes a bracket and a rotating shaft rotating in the bracket, one end of the rotating shaft is connected to the output end of the micro-reduction gearbox, and the other end of the rotating shaft is fixed with multiple scraping blades, each of which is inclined. Multiple rows of bristles are also provided on the end of each scraping blade facing the filter, and the bristles are in contact with the filter.

[0007] Specifically, the filter screen is a metal filter screen.

[0008] Furthermore, the micro reduction gearbox is in the shape of a square column, the bottom of the micro reduction gearbox has a fixing portion, the bottom of the shell is provided with a corresponding fixing seat, and the fixing portion is connected to the fixing seat.

[0009] Furthermore, the fixing seat and the fixing part are provided with corresponding screw holes, and the fixing screws are introduced from the bottom of the shell body to connect the fixing seat and the fixing part.

[0010] Furthermore, the shell is in a cylindrical shape, and a fixing ring is provided on the outer periphery of the rear end of the shell. The protective cover is buckled and placed on the rear end of the shell and fixed to the fixing ring.

[0011] Furthermore, the inner peripheral array of the protective cover has a plurality of reinforcing rods, and the filter screen is fixed on the inner side of each reinforcing rod and connected to the reinforcing rod.

[0012] Furthermore, a limiting ring corresponding to the bracket is provided in the shell, and the bracket is inserted from the rear end of the shell and connected to the limiting ring.

[0013] Furthermore, the bracket is composed of a ring body and support rods arrayed in the ring body, and a rotating shaft seat is provided between the ends of each support rod. A bearing is provided in the rotating shaft seat, and the middle part of the rotating shaft is connected to the bearing.

[0014] Specifically, the cross-section of the ring body is "L"-shaped, and the bending part of the inner circumference of the ring body is an arc-shaped transition.

[0015] Furthermore, the bottom of the shell is also provided with supporting feet.

[0016] The beneficial effects of the utility model are as follows: the scraping mechanism does not require additional power to drive its operation, and has the advantages of energy saving and reduced manufacturing cost; the setting of the protective cover can effectively block large particles of impurities and some dust from entering the interior of the blower, and prevent damage to the fan blades and the motor; the micro-reduction gear box arranged at the rear end of the motor also serves as a bracket, making the motor more reliably fixed and less prone to shaking; when the motor is started, the micro-reduction gear box drives each blade to rotate slowly, so that the bristles continuously clean the small holes on the filter screen, avoiding impurities from being embedded in the small holes and causing blockage of the filter screen, and preventing tiny fibers and dust from accumulating on the filter screen, thereby improving the working stability of the entire blower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0019] Figure 3 It is a structural schematic diagram of the scraping mechanism and the protective cover of the utility model.

[0020] In the figure: housing 1, fan blades 2, motor 3, protective cover 4, micro reduction gear box 5, filter screen 6, bracket 7, rotating shaft 8, scraping blades 9, bristles 10, fixing part 11, fixing ring 12, reinforcing rod 13, limiting ring 14, ring body 16, support foot 17. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] Combination Figure 1-3As shown, an energy-saving and stable blower includes a housing 1, a fan blade 2 and a motor 3, and also includes a protective cover 4, a micro reduction gear box 5 and a scraping mechanism;

[0023] The motor 3 is a dual-axis motor, the micro reduction gearbox 5 is fixed in the housing 1 at the rear end of the motor 3, the front output shaft of the motor 3 is connected to the fan blade 2, and the rear output shaft of the motor 3 is connected to the input end of the micro reduction gearbox 5;

[0024] The protective cover 4 is fixed at the rear end of the shell 1, and a filter screen 6 is provided on the inner periphery of the protective cover 4. The scraping mechanism includes a bracket 7 and a rotating shaft 8 rotating in the bracket 7. One end of the rotating shaft 8 is connected to the output end of the micro-reduction gearbox 5, and a plurality of scraping blades 9 are fixed to the other end of the rotating shaft 8. Each of the scraping blades 9 is arranged at an angle, and a plurality of rows of bristles 10 are provided on one end of each scraping blade 9 facing the filter screen 6, and the bristles 10 are in contact with the filter screen 6.

[0025] In the above structure, the scraping mechanism does not need to add additional power to drive its work, which has the advantages of energy saving and reducing manufacturing costs; the setting of the protective cover 4 can effectively block large particles of impurities and some dust from entering the inside of the blower, preventing damage to the fan blades 2 and the motor 3. The micro-reduction gearbox 5 arranged at the rear end of the motor 3 also plays the role of a bracket 7, making the fixation of the motor 3 more reliable and less prone to shaking. When the motor 3 is started, the micro-reduction gearbox 5 drives each blade to rotate slowly, so that the bristles 10 continuously clean the small holes on the filter 6, avoiding impurities from being embedded in the small holes and causing blockage of the filter 6, and preventing tiny fibers and dust from accumulating on the filter 6, thereby improving the working stability of the entire blower.

[0026] In another embodiment, the filter screen 6 is a metal filter screen 6 to increase the service life of the filter screen 6 and prevent the scraping mechanism from repeatedly scraping the filter screen 6 and causing the filter screen 6 to break. The metal filter screen 6 is not easily deformed and is prevented from bulging toward the inside of the shell 1 when the blower is working.

[0027] In another embodiment, if Figure 1 As shown, the micro reduction gearbox 5 is in a square column shape, and the bottom of the micro reduction gearbox 5 has a fixing portion 11. The bottom of the shell 1 is provided with a corresponding fixing seat, and the fixing portion 11 is connected to the fixing seat.

[0028] In another embodiment, the fixing seat and the fixing portion 11 have corresponding screw holes, and the fixing screws are introduced from the bottom of the housing 1 and connect the fixing seat and the fixing portion 11 to facilitate the installation and fixation of the micro reduction gearbox 5.

[0029] In another embodiment, if Figure 1As shown, the housing 1 is cylindrical, and a fixing ring 12 is provided on the outer periphery of the rear end of the housing 1 . The protective cover 4 is buckled on the rear end of the housing 1 and fixed to the fixing ring 12 , so as to facilitate installation and removal of the protective cover 4 .

[0030] In another embodiment, in combination Figure 1 and Figure 3 As shown, the inner peripheral array of the protective cover 4 has a plurality of reinforcing rods 13 , and the filter screen 6 is fixed inside each reinforcing rod 13 and connected to the reinforcing rod 13 to improve the reliability of the filter screen 6 .

[0031] In another embodiment, in combination Figure 1 and Figure 2 As shown, a limiting ring 14 corresponding to the bracket 7 is further provided in the housing 1 , and the bracket 7 is inserted from the rear end of the housing 1 and connected to the limiting ring 14 , so as to facilitate the installation and fixation of the bracket 7 .

[0032] In another embodiment, if Figure 1 As shown, the bracket 7 is composed of a ring body 16 and support rods arrayed in the ring body 16, and a rotating shaft seat is also provided between the ends of each support rod. A bearing is provided in the rotating shaft seat, and the middle part of the rotating shaft 8 is connected to the bearing.

[0033] In another embodiment, if Figure 2 As shown, the cross section of the ring body 16 is "L"-shaped, and the bending part of the inner circumference of the ring body 16 is an arc-shaped transition to avoid dust accumulation at this position.

[0034] In another embodiment, a support foot 17 is further provided at the bottom of the housing 1 .

Claims

1. An energy-saving and stable blower, comprising a housing (1), a fan blade (2) and a motor (3), characterized in that: It also includes a protective cover (4), a micro reduction gear box (5) and a scraping mechanism; The motor (3) is a double-shaft motor, the micro reduction gear box (5) is fixed in a housing (1) at the rear end of the motor (3), the front output shaft of the motor (3) is connected to the fan blade (2), and the rear output shaft of the motor (3) is connected to the input end of the micro reduction gear box (5); The protective cover (4) is fixed at the rear end of the housing (1), a filter screen (6) is arranged on the inner periphery of the protective cover (4), the scraping mechanism comprises a bracket (7) and a rotating shaft (8) rotating in the bracket (7), one end of the rotating shaft (8) is connected to the output end of the micro reduction gear box (5), and the other end of the rotating shaft (8) is fixed with a plurality of scraping blades (9), each of the scraping blades (9) is arranged obliquely, and a plurality of rows of bristles (10) are arranged on one end of each scraping blade (9) facing the filter screen (6), and the bristles (10) are in contact with the filter screen (6).

2. An energy-saving and stable blower as claimed in claim 1, characterized in that: The filter screen (6) is a metal filter screen (6).

3. An energy-saving and stable blower as claimed in claim 2, characterized in that: The micro reduction gearbox (5) is in the shape of a square column, the bottom of the micro reduction gearbox (5) has a fixing portion (11), the bottom of the housing (1) is provided with a corresponding fixing seat, and the fixing portion (11) is connected to the fixing seat.

4. An energy-saving and stable blower as claimed in claim 3, characterized in that: The fixing seat and the fixing part (11) are provided with corresponding screw holes, and the fixing screws are inserted from the bottom of the housing (1) to connect the fixing seat and the fixing part (11).

5. An energy-saving and stable blower as claimed in claim 4, characterized in that: The shell (1) is cylindrical, and the outer periphery of the rear end of the shell (1) is provided with a fixing ring (12). The protective cover (4) is buckled onto the rear end of the shell (1) and fixed to the fixing ring (12).

6. An energy-saving and stable blower as claimed in claim 5, characterized in that: The inner peripheral array of the protective cover (4) has a plurality of reinforcing rods (13), and the filter screen (6) is fixed on the inner side of each reinforcing rod (13) and connected to the reinforcing rod (13).

7. An energy-saving and stable blower as claimed in claim 6, characterized in that: A limiting ring (14) corresponding to the bracket (7) is also provided in the shell (1); the bracket (7) is inserted from the rear end of the shell (1) and connected to the limiting ring (14).

8. An energy-saving and stable blower as claimed in claim 7, characterized in that: The bracket (7) is composed of a ring body (16) and support rods arrayed in the ring body (16). A rotating shaft seat is provided between the ends of each of the support rods. A bearing is provided in the rotating shaft seat. The middle part of the rotating shaft (8) is connected to the bearing.

9. An energy-saving and stable blower as claimed in claim 8, characterized in that: The cross section of the ring body (16) is in an "L" shape, and the bending part of the inner circumference of the ring body (16) is an arc-shaped transition.

10. An energy-saving and stable blower as claimed in claim 9, characterized in that: The bottom of the housing (1) is also provided with a support foot (17).

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