CN217462594U - Draught fan convenient to maintain - Google Patents

Abstract

The utility model provides a draught fan convenient to maintain, which belongs to the technical field of centrifugal fans and comprises a shell and a motor cabin arranged on the side edge of the shell, wherein a driving motor is arranged in the motor cabin, a fan component is arranged on an output shaft of the driving motor through a connecting mechanism, a through hole is arranged on the other side of the shell, a positioning ring is arranged on the side edge of the shell corresponding to the through hole, an annular groove is formed between the positioning ring and the side edge of the shell, and a positioning plate is arranged corresponding to the annular groove; the utility model discloses can be when needs maintain the draught fan, thereby take off the locating plate and then take off fan unit through coupling mechanism and can maintain fan blade and casing.

Description

Draught fan convenient to maintain

Technical Field

The utility model relates to a centrifugal fan technical field, concretely relates to draught fan convenient to maintenance.

Background

In the prior art, a centrifugal fan working in a poor environment is available, such as industries of paint spraying, crushing and the like, because the air in the occasions contains a large amount of dust particles, after the centrifugal fan works for a period of time, a large amount of dust particles or oil dust are adsorbed on fan blades or volute walls of the centrifugal fan, and the centrifugal fan needs to be cleaned or maintained regularly; because spiral case and motor are all fixed connection on same base, need dismantle wind shell etc. when dismantling, dismantle and all spend a large amount of time and manpower with recovering.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a draught fan convenient to maintenance can be when needs maintain the draught fan, thereby take off the locating plate and then take off fan assembly through coupling mechanism and can maintain fan blade and casing.

For solving the technical problem, the utility model provides a draught fan convenient to maintenance, motor storehouse including casing and casing side setting, set up driving motor in the motor storehouse, set up fan assembly through coupling mechanism on driving motor's the output shaft, the casing opposite side sets up the through-hole, corresponds the through-hole sets up the holding ring at the casing side, form the annular between holding ring and the casing side, correspond the annular sets up the locating plate.

Furthermore, a plurality of limiting holes are formed in the positioning ring in an array mode, and a plurality of limiting plates are arranged on the positioning plate corresponding to the limiting holes.

Furthermore, a force application mechanism is arranged on the positioning plate.

Furthermore, a clamping rod is arranged on the positioning ring, and a clamping ring is arranged on the positioning plate corresponding to the clamping rod.

Furthermore, the locating plate is provided with an air inlet hole, and a screen is arranged in the air inlet hole.

Further, the fan assembly includes a sleeve having a plurality of fan blades disposed thereon.

Furthermore, sleeve tip sets up a plurality of first screw holes, corresponds first screw hole and sets up the second screw hole on driving motor's output shaft, corresponds first screw hole and sets up fastening bolt with the second screw hole.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

1. the limiting plate on the positioning plate is aligned to the limiting hole in the positioning ring, the positioning plate is inserted into the annular groove and then rotated, so that the limiting plate on the positioning plate and the limiting groove are mutually deviated, and the draught fan can be easily and conveniently installed.

2. When the rotary positioning plate is installed, the clamping ring can be clamped on the clamping rod on the positioning ring, so that when the draught fan works, wind flow cannot drive the positioning plate to rotate in the annular groove, and the positioning plate can be prevented from falling off from the positioning ring.

3. The fan component can be taken down from the output shaft of the driving motor by taking the fastening bolt out of the first threaded hole and the second threaded hole, so that the fan component can be taken out of the shell, and the fan blades are convenient to clean and maintain.

Drawings

FIG. 1 is a schematic structural view of an induced draft fan convenient for maintenance;

FIG. 2 is a schematic structural diagram of a part of the structural diagram of the present invention;

fig. 3 is a schematic structural view of a top cross-sectional view of the present invention;

FIG. 4 is a schematic structural view of the positioning plate of the present invention;

fig. 5 is a schematic structural diagram of the connection mechanism of the present invention.

1. A housing; 2. a motor compartment; 3. a drive motor; 4. a fan assembly; 5. a through hole; 6. a positioning ring; 7. a ring groove; 8. positioning a plate; 9. a limiting hole; 10. a limiting plate; 11. a force application mechanism; 12. a clamping rod; 13. a snap ring; 14. an air inlet hole; 15. screening a screen; 16. a sleeve; 17. a fan blade; 18. a first threaded hole; 19. a second threaded hole; 20. and fastening the bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 5 of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

As shown in fig. 1-5: a draught fan convenient to maintain comprises a shell 1 and a motor bin 2 arranged on the side edge of the shell 1, wherein a driving motor 3 is arranged in the motor bin 2, a fan assembly 4 is arranged on an output shaft of the driving motor 3 through a connecting mechanism, a through hole 5 is arranged on the other side of the shell 1, a positioning ring 6 is arranged on the side edge of the shell 1 corresponding to the through hole 5, an annular groove 7 is formed between the positioning ring 6 and the side edge of the shell 1, and a positioning plate 8 is arranged corresponding to the annular groove 7; when the draught fan needs to be maintained, the positioning plate 8 is taken down through the force application mechanism 11, and then the fan assembly 4 is taken down through the connecting mechanism, so that the inside of the shell 1 and the fan blades 17 can be cleaned and maintained.

Particularly, an draught fan convenient to maintenance, the drive storehouse provides support and fixed for driving motor 3, driving motor 3's output shaft stretches into 1 insidely of casing, when needs take off locating plate 8, make locating plate 8 rotatory through application of force mechanism 11, and then make limiting plate 10 on the locating plate 8 align with spacing hole 9 on the holding ring 6, and then just can take off locating plate 8, then can take off fan assembly 4 through coupling mechanism, thereby can clear up the maintenance to 1 insidely of casing and fan blade 17.

According to one embodiment of the present invention, as shown in figures 1, 2 and 4,

a plurality of limiting holes 9 are formed in the positioning ring 6 in an array mode, and a plurality of limiting plates 10 are arranged on the positioning plate 8 corresponding to the limiting holes 9. When the draught fan is required to be installed, the limiting plate 10 on the positioning plate 8 is aligned to the limiting hole 9 on the positioning ring 6, the positioning plate 8 is inserted into the annular groove 7 and then the positioning plate 8 is controlled to rotate through the force application mechanism 11, so that the limiting plate 10 on the positioning plate 8 and the limiting groove deviate from each other, and the positioning plate 8 can be easily and conveniently installed on the shell 1

According to another embodiment of the present invention, as shown in figures 1 and 4,

and a force application mechanism 11 is arranged on the positioning plate 8. The forcing mechanism 11 may be provided as a handle or other shape, that is, the forcing mechanism 11 can control the positioning plate 8 to rotate.

In one embodiment of the invention, as shown in figures 1 and 4,

the positioning ring 6 is provided with a clamping rod 12, and a clamping ring 13 is arranged on the positioning plate 8 corresponding to the clamping rod 12. Rotatory locating plate 8 can make snap ring 13 card on the kelly 12 on holding ring 6 when installing to make at the draught fan during operation, the distinguished and admirable locating plate 8 that can not drive is 7 internal rotations in the annular, thereby can avoid locating plate 8 to drop from holding ring 6.

In another embodiment of the present invention, as shown in figures 1 and 4,

an air inlet hole 14 is formed in the positioning plate 8, and a screen 15 is arranged in the air inlet hole 14. Namely, the air flow can enter the shell 1 through the air inlet holes 14, and the screen 15 can prevent plastic impurities and the like from entering the induced draft fan to damage the fan assembly 4.

According to another embodiment of the present invention, as shown in figures 2 and 3,

the fan assembly 4 includes a sleeve 16, and a plurality of fan blades 17 are disposed on the sleeve 16. That is, the output shaft of the driving motor 3 can drive the sleeve 16 to rotate, and further drive the fan blades 17 to rotate, so that the wind flow can be introduced into the housing 1 through the wind inlet and then discharged

According to another embodiment of the present invention, as shown in figures 2 and 3,

a plurality of first threaded holes 18 are formed in the end portion of the sleeve 16, a second threaded hole 19 is formed in the output shaft of the driving motor 3 corresponding to the first threaded hole 18, and fastening bolts 20 are arranged corresponding to the first threaded hole 18 and the second threaded hole 19. The fan assembly 4 can be taken out from the output shaft of the driving motor 3 by taking the fastening bolt 20 out of the first threaded hole 18 and the second threaded hole 19, so that the fan assembly 4 can be taken out from the shell 1, and the fan blades 17 can be cleaned and maintained conveniently.

The utility model discloses a theory of operation:

when the draught fan needs to be maintained, when the positioning plate 8 needs to be taken down, the positioning plate 8 is rotated through the force application mechanism 11, the limiting plate 10 on the positioning plate 8 is aligned with the limiting hole 9 on the positioning ring 6, the positioning plate 8 can be taken down, the fastening bolt 20 is taken out from the first threaded hole 18 and the second threaded hole 19, the fan assembly 4 can be taken down from the output shaft of the driving motor 3, the fan assembly 4 can be taken out from the shell 1, and the fan blades 17 are convenient to clean and maintain.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides an draught fan convenient to maintenance which characterized in that: including motor storehouse (2) that casing (1) and casing (1) side set up, set up driving motor (3) in motor storehouse (2), set up fan assembly (4) through coupling mechanism on the output shaft of driving motor (3), casing (1) opposite side sets up through-hole (5), corresponds through-hole (5) set up holding ring (6) at casing (1) side, form annular (7) between holding ring (6) and casing (1) side, correspond annular (7) set up locating plate (8).

2. The induced draft fan convenient to maintain of claim 1, wherein: a plurality of limiting holes (9) are formed in the positioning ring (6) in an array mode, and a plurality of limiting plates (10) are arranged on the positioning plate (8) corresponding to the limiting holes (9).

3. The induced draft fan convenient to maintain of claim 1, wherein: and a force application mechanism (11) is arranged on the positioning plate (8).

4. The induced draft fan convenient to maintain of claim 2, wherein: set up kelly (12) on holding ring (6), correspond kelly (12) set up snap ring (13) on locating plate (8).

5. The induced draft fan convenient to maintain of claim 1, wherein: the air inlet holes (14) are formed in the positioning plate (8), and a screen (15) is arranged in the air inlet holes (14).

6. The induced draft fan convenient to maintain of claim 1, wherein: the fan assembly (4) comprises a sleeve (16), and a plurality of fan blades (17) are arranged on the sleeve (16).

7. The induced draft fan convenient to maintain of claim 6, wherein: a plurality of first threaded holes (18) are formed in the end portion of the sleeve (16), a second threaded hole (19) is formed in the output shaft of the driving motor (3) corresponding to the first threaded holes (18), and fastening bolts (20) are arranged corresponding to the first threaded holes (18) and the second threaded holes (19).

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