Glass fiber reinforced plastic anti-explosion variable-frequency centrifugal fan

Abstract

The utility model belongs to the technical field of centrifugal fans, and particularly relates to a glass fiber reinforced plastic anti-explosion variable-frequency centrifugal fan which comprises a bottom plate, a base arranged at the top of the bottom plate, a fan body arranged at the top of the base, an air outlet pipe arranged on the outer side of the fan body, an adjusting pipe arranged on one side, away from the fan body, of the air outlet pipe, and a motor arranged on one side of the fan body. A wind wheel is arranged in the fan body, an air inlet is formed in the other side of the motor, a protection ring is arranged on the outer side of the air inlet, a baffle is arranged in the adjusting pipe, an adjusting frame is arranged at the position, corresponding to the baffle, of the outer side of the adjusting pipe, and an adjusting assembly is arranged in the adjusting frame. By arranging the adjusting pipe, the direction of the adjusting pipe can be adjusted by rotating the adjusting pipe during use as the circular groove and the connecting piece are obliquely arranged, so that the air outlet direction of the air outlet pipe can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a glass fiber reinforced plastic explosion-proof variable frequency centrifugal fan. Background Art

[0002] A centrifugal fan is a gas acceleration device, which mainly includes a casing, a main shaft and an impeller. The impeller is located inside the casing, and a motor is installed in the casing. The motor drives the impeller to rotate through the main shaft. The casing is provided with an air inlet along the axial direction, and an exhaust port connected to the air inlet is provided along the circumferential direction of the outer shell. When the impeller rotates, it drives the external gas to enter the impeller through the air inlet, and changes the flow direction under the drive of the impeller, and then flows toward the impeller along the circumference of the outer shell.

[0003] The prior art has the following problems:

[0004] When the existing explosion-proof variable frequency centrifugal fan is in use, it is difficult to adjust the exhaust pipe, which makes it difficult to adjust the wind direction of the exhaust air during exhaust, making it inconvenient to use. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a fiberglass explosion-proof variable frequency centrifugal fan, which solves the problem that the existing explosion-proof variable frequency centrifugal fans are difficult to adjust the exhaust duct during use, making it difficult to adjust the exhaust wind direction and inconvenient to use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a glass fiber reinforced plastic explosion-proof variable frequency centrifugal fan, comprising a bottom plate, a base is provided on the top of the bottom plate, a fan body is provided on the top of the base, an air outlet pipe is provided on the outside of the fan body, an adjusting pipe is provided on the side of the air outlet pipe away from the fan body, a motor is provided on one side of the fan body, a wind wheel is provided inside the fan body, an air inlet is opened on the other side of the motor, a protective ring is provided on the outside of the air inlet, a baffle is provided inside the adjusting pipe, an adjusting frame is provided on the outside of the adjusting pipe at a position corresponding to the baffle, and an adjusting component is provided inside the adjusting frame.

[0007] As a preferred technical solution of the utility model, a circular groove is provided on one side of the air outlet duct corresponding to the regulating duct, a connecting piece is fixedly installed on one side of the regulating duct corresponding to the air outlet duct, and the circular groove and the connecting piece are inclined.

[0008] As a preferred technical solution of the utility model, the output end of the motor extends to the interior of the fan body and is fixedly connected to the wind wheel.

[0009] As a preferred technical solution of the utility model, a groove is provided on the side of the protective ring away from the air inlet, a dust screen is slidably installed inside the groove, and multiple groups of fixed threaded rods are threadedly installed on the outer side of the protective ring.

[0010] As a preferred technical solution of the utility model, the adjustment assembly includes a rotating rod, a gear and a rotating shaft. The rotating rod is rotatably installed at the top center position of the adjustment frame. The interior of the adjustment frame is rotatably installed with gear shafts on both sides corresponding to the rotating rod. The gear is fixedly installed at the bottom of the gear shaft and meshed with the rotating rod. The rotating shaft is rotatably installed inside the adjustment frame corresponding to both sides of the adjustment tube.

[0011] As a preferred technical solution of the utility model, a transmission belt is installed between the gear shaft and the rotating shaft, the adjustment tube and the adjustment frame are connected to each other corresponding to the baffle and the rotating shaft, a connecting block is fixedly installed at the position of the rotating shaft corresponding to the baffle, and the outer side of the connecting block is fixedly connected to the baffle.

[0012] Compared with the prior art, the utility model provides a glass fiber reinforced plastic explosion-proof variable frequency centrifugal fan, which has the following beneficial effects:

[0013] 1. The glass fiber reinforced plastic explosion-proof variable frequency centrifugal fan is provided with an adjusting tube. When in use, the adjusting tube is rotated. Since the circular groove and the connecting piece are inclined, the direction of the adjusting tube can be adjusted, thereby facilitating the adjustment of the air outlet direction of the air outlet pipe.

[0014] 2. This kind of glass fiber reinforced plastic explosion-proof variable frequency centrifugal fan is provided with an adjustment component. When the wind pressure needs to be adjusted, the two sets of gears are driven to rotate by rotating the rotating rod, so that the two sets of gear shafts are rotated, and the rotating shaft is driven to rotate by the transmission belt, so that the connecting block drives the baffle to rotate, thereby adjusting the openings of the two sets of baffles, thereby adjusting the exhaust wind pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0017] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the structure at A.

[0019] In the figure: 1. bottom plate; 2. base; 3. fan body; 4. air outlet pipe; 5. adjustment pipe; 6. round groove; 7. connecting piece; 8. motor; 9. rotating shaft; 10. wind wheel; 11. air inlet; 12. protective ring; 13. dust screen; 14. fixed threaded rod; 15. baffle; 16. adjustment frame; 17. rotating rod; 18. gear shaft; 19. gear; 20. rotating shaft; 21. transmission belt; 22. connecting block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 In the present embodiment: a glass fiber reinforced plastic explosion-proof variable frequency centrifugal fan comprises a bottom plate 1, a base 2 is provided on the top of the bottom plate 1, a fan body 3 is provided on the top of the base 2, an air outlet pipe 4 is provided on the outside of the fan body 3, an adjusting pipe 5 is provided on the side of the air outlet pipe 4 away from the fan body 3, a motor 8 is provided on one side of the fan body 3, a wind wheel 10 is provided inside the fan body 3, an air inlet 11 is provided on the other side of the motor 8, a protective ring 12 is provided on the outside of the air inlet 11, a baffle 15 is provided inside the adjusting pipe 5, an adjusting frame 16 is provided on the outside of the adjusting pipe 5 corresponding to the position of the baffle 15, and an adjusting component is provided inside the adjusting frame 16.

[0022] In this embodiment, a circular groove 6 is provided on one side of the air outlet duct 4 corresponding to the regulating tube 5, and a connecting piece 7 is fixedly installed on one side of the regulating tube 5 corresponding to the air outlet duct 4. The circular groove 6 and the connecting piece 7 are arranged obliquely. When in use, the regulating tube 5 is rotated. Since the circular groove 6 and the connecting piece 7 are arranged obliquely, the direction of the regulating tube 5 is adjusted, so that the air outlet direction of the air outlet duct 4 is adjusted conveniently. The output end of the motor 8 extends to the interior of the fan body 3 and is fixedly connected to the wind wheel 10. The fan body 3 is driven by starting the motor 8 and rotating the wind wheel 10. A groove is provided on the side of the protective ring 12 away from the air inlet 11, and a dustproof net 13 is slidably installed inside the groove. Multiple groups of fixed threaded rods 14 are threadedly installed on the outer side of the protective ring 12. When it is used, the dustproof net 13 is arranged to prevent dust from entering the interior of the fan body 3 when exhausting air. At the same time, after the dustproof net 13 is used for a long time, the fixed threaded rod 14 is screwed out and then the dustproof net 13 is taken out, so that the dustproof net 13 is convenient to clean or replace. The adjusting assembly includes a rotating rod 17, a gear 19 and a rotating shaft 20. The rotating rod 17 is rotatably mounted at the top center of the adjusting frame 16. The inside of the adjusting frame 16 is rotatably mounted on both sides of the rotating rod 17. The gear 19 is fixedly mounted at the bottom of the gear shaft 18 and meshed with the rotating rod 17. The rotating shaft 20 is rotatably mounted on both sides of the adjusting tube 5. A transmission belt 21 is installed between the gear shaft 18 and the rotating shaft 20. The adjusting tube 5 and the adjusting frame 16 correspond to the gear shaft 18. The plate 15 and the rotating shaft 20 are connected to each other. The connecting block 22 is fixedly installed on the rotating shaft 20 at the position corresponding to the baffle 15. The outer side of the connecting block 22 is fixedly connected to the baffle 15. When the wind pressure needs to be adjusted, the two sets of gears 19 are driven to rotate by rotating the rotating rod 17, so that the two sets of gear shafts 18 are rotated, and the rotating shaft 20 is driven to rotate by the transmission belt 21, so that the connecting block 22 drives the baffle 15 to rotate, thereby adjusting the openings of the two sets of baffles 15, thereby adjusting the exhaust wind pressure.

[0023] The working principle and use process of the utility model are as follows: the operator drives the air outlet duct 4 to rotate by starting the motor 8, so that the fan body 3 is running, and the dust is blocked by the dustproof net 13 to prevent dust from entering the interior of the fan body 3. When in use, the adjusting tube 5 is rotated. Since the circular groove 6 and the connecting piece 7 are inclined, the direction of the adjusting tube 5 is adjusted, so that the air outlet direction of the air outlet duct 4 can be adjusted. At the same time, when the wind pressure needs to be adjusted, the two sets of gears 19 are driven to rotate by rotating the rotating rod 17, so that the two sets of gear shafts 18 rotate, and the rotating shaft 20 is driven to rotate by the transmission belt 21, so that the connecting block 22 drives the baffle 15 to rotate, so as to adjust the openings of the two sets of baffles 15, so as to adjust the exhaust wind pressure. After long-term use, the dustproof net 13 is taken out by unscrewing the fixing threaded rod 14, so that the dustproof net 13 is convenient to clean or replace.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A glass fiber reinforced plastic explosion-proof variable frequency centrifugal fan, characterized by: The invention comprises a bottom plate (1), a base (2) is provided on the top of the bottom plate (1), a fan body (3) is provided on the top of the base (2), an air outlet pipe (4) is provided on the outside of the fan body (3), an adjusting pipe (5) is provided on the side of the air outlet pipe (4) away from the fan body (3), a motor (8) is provided on one side of the fan body (3), a wind wheel (10) is provided inside the fan body (3), an air inlet (11) is provided on the other side of the motor (8), a protective ring (12) is provided on the outside of the air inlet (11), a baffle (15) is provided inside the adjusting pipe (5), an adjusting frame (16) is provided on the outside of the adjusting pipe (5) at a position corresponding to the baffle (15), and an adjusting component is provided inside the adjusting frame (16).

2. The FRP explosion-proof variable frequency centrifugal fan according to claim 1, characterized in that: A circular groove (6) is provided on one side of the air outlet pipe (4) corresponding to the regulating pipe (5), and a connecting piece (7) is fixedly installed on one side of the regulating pipe (5) corresponding to the air outlet pipe (4), and the circular groove (6) and the connecting piece (7) are arranged obliquely.

3. The FRP explosion-proof variable frequency centrifugal fan according to claim 1, characterized in that: The output end of the motor (8) extends into the interior of the fan body (3) and is fixedly connected to the wind wheel (10).

4. The FRP explosion-proof variable frequency centrifugal fan according to claim 1, characterized in that: A groove is provided on a side of the protective ring (12) away from the air inlet (11), a dust screen (13) is slidably installed inside the groove, and multiple groups of fixed threaded rods (14) are threadedly installed on the outer side of the protective ring (12).

5. The FRP explosion-proof variable frequency centrifugal fan according to claim 1, characterized in that: The adjustment assembly comprises a rotating rod (17), a gear (19) and a rotating shaft (20); the rotating rod (17) is rotatably mounted at the top center position of the adjustment frame (16); the inside of the adjustment frame (16) is rotatably mounted on two sides of the rotating rod (17); the gear shaft (18) is fixedly mounted on the bottom of the gear shaft (18) and meshed with the rotating rod (17); the rotating shaft (20) is rotatably mounted inside the adjustment frame (16) corresponding to two sides of the adjustment tube (5).

6. The glass fiber reinforced plastic explosion-proof variable frequency centrifugal fan according to claim 5, characterized in that: A transmission belt (21) is installed between the gear shaft (18) and the rotating shaft (20); the adjusting tube (5) and the adjusting frame (16) are connected to each other corresponding to the baffle (15) and the rotating shaft (20); a connecting block (22) is fixedly installed at the position of the rotating shaft (20) corresponding to the baffle (15); and the outer side of the connecting block (22) is fixedly connected to the baffle (15).

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