CN110671345A

CN110671345A - Detachable centrifugal fan

Info

Publication number: CN110671345A
Application number: CN201911062916.9A
Authority: CN
Inventors: 杨喜朋; 谭洪毅
Original assignee: Xuzhou Yajule Environmental Protection Technology Co Ltd
Current assignee: Xuzhou Yajule Environmental Protection Technology Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-01-10

Abstract

The invention relates to a detachable centrifugal fan, which comprises fan blades, a blade bottom plate, a transmission shaft, a case and a driving motor, and is characterized in that: fan blade and blade bottom plate swing joint, there is the T-slot in the blade bottom plate inner circle, the T-slot suits with fan blade top T shape structure, fan blade end is fixed with the blade fixed plate, the blade fixed plate passes through bolt and blade bottom plate fixed connection, blade bottom plate and transmission shaft swing joint, transmission shaft and driving motor fixed connection. Compared with the prior art, the detachable centrifugal fan increases the pressure in the fan by reducing the contact surface between the ventilation opening and the outside air, the blades on the centrifugal fan can be detached and are very convenient to clean, and a device for filtering liquid impurities in the air is further arranged on the basis.

Description

Detachable centrifugal fan

Technical Field

The invention relates to the field of centrifugal fans, in particular to a detachable centrifugal fan.

Background

At present, the structures of ventilators are various, and in order to obtain low-flow high-air pressure, the traditional ventilator is usually realized by adopting a method of intercepting or emptying a part of air volume, but the method obviously wastes the energy of a motor.

The national intellectual property office of the people's republic of China publishes a utility model about centrifugal fan, and the authorized public number of the utility model is: CN 20745384U. The spiral casing device comprises a rack, wherein one side of the rack is connected with a vertically arranged spiral casing, a driving motor is fixedly connected onto the rack, an output shaft of the driving motor is inserted into the spiral casing along the axial direction of the spiral casing, a centrifugal impeller fixedly connected onto the output shaft is arranged in the spiral casing, an outer air inlet is formed in the end face, back to the driving motor, of one side of the spiral casing, an air outlet is formed in the upper end of the spiral casing, the width of the spiral casing is only 45-58mm, the minimum diameter is 400-plus-430 mm, the maximum diameter is 445-plus-460 mm, the thickness of the centrifugal fan is 15-30mm, and the.

Disclosure of Invention

The invention provides a detachable centrifugal fan.

In order to solve the problems, the invention adopts the following scheme: fan blade and blade bottom plate swing joint, there is the T-slot in the blade bottom plate inner circle, 1 the T-slot suits with fan blade top T shape structure, fan blade end is fixed with the blade fixed plate, the blade fixed plate passes through bolt and blade bottom plate fixed connection, blade bottom plate and transmission shaft swing joint, transmission shaft and driving motor fixed connection, driving motor is at quick-witted incasement portion and driving machine tray fixed connection, quick-witted case and fan base fixed connection.

Further, the outer end fixedly connected with trapezoidal fixed plate at fan base, trapezoidal fixed plate and fan safety cover pass through bolted connection, the fan safety cover highly descends gradually in trapezoidal vent department, trapezoidal vent swing joint has the filter screen.

Furthermore, an oil stain pipeline is fixed on the inner side of the lower half edge of the blade base plate, and a first threaded through hole is fixed at the bottom end of the blade base plate.

Furthermore, the top end of the hose pipeline is provided with threads, the hose pipeline is in threaded connection with the first threaded through hole, the hose pipeline is fixedly connected with the oil stain collecting device, and the oil stain collecting device is fixedly connected with the case.

Furthermore, a fan fixing plate is fixedly connected to the right end of the case, and second threaded holes are formed in two ends of the fan fixing plate.

After the structure is used, compared with the prior art, the detachable centrifugal fan increases the pressure intensity in the fan by reducing the contact surface between the ventilation opening and the outside air, the blades on the centrifugal fan can be detached and are very convenient and fast to clean, and a device for filtering liquid impurities in the air is further arranged on the basis.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a front view of a detachable centrifugal fan.

Fig. 2 is a left side view of a detachable centrifugal fan.

In the figure: 1 is trapezoidal vent, 2 is the fan blade, 3 is the filter screen, 4 is the blade bottom plate, 5 is trapezoidal fixing device, 6 is greasy dirt fixed pipeline, 7 is first screw thread through-hole, 8 is the blade fixed plate, 9 is the T-slot, 10 is the fan base, 11 is the fan safety cover, 12 is the turbine head, 13 is the screw thread post, 14 is the hose pipeline, 15 is the transmission shaft, 16 driving motor, 17 is the fan fixed plate, 18 is the driving motor layer board, 19 is second screw thread through-hole, 20 is greasy dirt collection device, 21 is quick-witted case.

Detailed Description

As shown in fig. 1, the fan blade 2, the blade base plate 4, the transmission shaft 15, the chassis 21 and the driving motor 16 are included, and the fan blade is characterized in that:

fan blade

2 and 4 swing joint of blade bottom plate, there is T-slot 9 in the 4 inner circles of blade bottom plate, 1T-slot 9 suits with 4 top T-shaped structures of fan blade, sets up such structure and both can fix the front end of fan blade 2, also convenience very when dismantling, 2 end of fan blade is fixed with blade fixed plate 8, blade fixed plate 8 passes through bolt and 8 fixed connection of blade bottom plate, and the stability of assurance fan blade 2 that just so can be better prevents to drop at the operation in-process. The blade bottom plate 8 is movably connected with the transmission shaft 15, the transmission shaft 15 is fixedly connected with the driving motor 16, and the driving motor 16 is fixedly connected with the driving machine tray 18 in the case 21.

As shown in fig. 2, an oil stain pipeline 6 is fixed on the inner side of the lower half edge of the blade base plate 4, a first threaded through hole 7 is fixed at the bottom end of the blade base plate 4, and oil stains filtered in the filter screen 3 flow into an oil stain collecting device 20 along the oil stain pipeline 6. Be equipped with the screw thread on hose line 14's top, hose line 14 and first screw thread through-hole 7 threaded connection, hose line 14 and greasy dirt collection device 20 fixed connection, greasy dirt collection device 20 and quick-witted case 21 swing joint, connected mode can be card formula connection or threaded connection etc. and such device plays convenient to detach and conveniently clears up the effect of greasy dirt. The right end of the case is fixedly connected with a fan fixing plate 17, and two ends of the fan fixing plate 17 are provided with second threaded holes 19 which play a role in fixing the fan fixing plate on the wall surface.

Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many variations or modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.

Claims

1. The utility model provides a detachable centrifugal fan, includes fan blade (2), blade bottom plate (4), transmission shaft (15), quick-witted case (21) and driving motor (16), its characterized in that: fan blade (2) and blade bottom plate (4) swing joint, there is T-slot (9) in blade bottom plate (4) inner circle, T-slot (9) and fan blade (4) top T shape structure suit, fan blade (2) end is fixed with blade fixed plate (8), blade fixed plate (8) pass through bolt and blade bottom plate (8) fixed connection, blade bottom plate (8) and transmission shaft (15) swing joint, transmission shaft (15) and driving motor (16) fixed connection, driving motor (16) are inside and driving machine tray (18) fixed connection in quick-witted case (21), quick-witted case (21) and fan base (10) fixed connection.

2. A detachable centrifugal fan according to claim 1, characterized in that: the outer end fixedly connected with trapezoidal fixed plate (8) at fan base (10), bolted connection is passed through in trapezoidal fixed plate (8) and fan safety cover (11), fan safety cover (11) highly descend gradually in trapezoidal vent (1), trapezoidal vent (1) swing joint has filter screen (3).

3. A detachable centrifugal fan according to claim 1, characterized in that: an oil stain pipeline (6) is fixed on the inner side of the lower half edge of the blade bottom plate (4), and a first threaded through hole (7) is fixed at the bottom end of the blade bottom plate (4).

4. A detachable centrifugal fan according to claim 3, characterized in that: the oil stain collecting device is characterized in that threads are arranged at the top end of the hose pipeline (14), the hose pipeline (14) is in threaded connection with the first threaded through hole (7), the hose pipeline (14) is fixedly connected with the oil stain collecting device (20), and the oil stain collecting device (20) is movably connected with the case (21).

5. A detachable centrifugal fan according to claim 1, characterized in that: the right end of the case is fixedly connected with a fan fixing plate (17), and two ends of the fan fixing plate (17) are provided with second threaded holes (19).