CN216714768U

CN216714768U - Cooling fan is used in polyurethane foam processing

Info

Publication number: CN216714768U
Application number: CN202123304052.2U
Authority: CN
Inventors: 蔡华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-10
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a cooling fan for processing polyurethane foam plastic, which comprises a shell, wherein one end of the shell is provided with an air outlet, one side of the shell is provided with an air inlet, the bottom of the shell is provided with a bracket, the other side of the shell is provided with a motor, the output end of the motor is connected with a rotating shaft, the outer wall of the rotating shaft is fixed with fan blades, the fan blades are positioned in the shell, the outer side of the rotating shaft is provided with a filter screen, one side of the filter screen is provided with a backing plate, the cooling fan for processing the polyurethane foam plastic can drive the dust sweeping rod and the brush to rotate when in operation, thereby can clear up the dust on the filter screen, through swivel nut for nut and dead lever separation, the elasticity that reset spring produced this moment can take off the filter screen, and then the convenience is to the clearance or the change of filter screen.

Description

Cooling fan is used in polyurethane foam processing

Technical Field

The utility model relates to the technical field of polyurethane foam plastic processing, in particular to a cooling fan for processing polyurethane foam plastic.

Background

The polyurethane foam plastic is prepared by polymerizing and foaming isocyanate and hydroxyl compounds, and can be divided into soft and hard polyurethane foam plastics according to the hardness of the polyurethane foam plastic, and when the polyurethane foam plastic is processed, a cooling fan is needed to cool the processed polyurethane foam plastic.

However, the air inlet on the existing cooling fan is generally provided with a filter screen to filter dust, so that the dust is prevented from entering the polyurethane foam processing part, the dust can be prevented from entering the polyurethane foam processing part, the filter screen is easily blocked after a period of time, the using effect of the cooling fan is reduced, and the cooling fan needs to be periodically detached to be cleaned, thereby wasting time and energy. In order to solve the problems, innovative design is urgently needed on the basis of the original cooling fan.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a cooling fan for polyurethane foam processing to solve the problems of the background art mentioned above.

The technical scheme for solving the technical problems is as follows: a cooling fan for processing polyurethane foam plastic comprises a shell, wherein an air outlet is formed in one end of the shell, an air inlet is formed in one side of the shell, a support is installed at the bottom of the shell, a motor is installed on the other side of the shell, the output end of the motor is connected with a rotating shaft, fan blades are fixed on the outer wall of the rotating shaft and are located inside the shell, a filter screen is arranged on the outer side of the rotating shaft, a base plate is arranged on one side of the filter screen, an ash sweeping rod is arranged on one side of the base plate, the end portion of the ash sweeping rod is rotatably connected with the end portion of the rotating shaft, a fixing rod is fixed at the center of the end portion of the rotating shaft, a nut is arranged on the fixing rod, a limiting plate is fixed on the inner wall of the air inlet, a reset spring is fixed on one side of the limiting plate, and limiting rods penetrate through the insides of the limiting plate and the reset spring, the end part of the limiting rod is fixedly connected with one side of the filter screen, and a brush is fixed on one side of the dust sweeping rod.

On the basis of the technical scheme, the utility model can be further improved as follows:

further, the backing plate is designed to be of an annular structure, and two sides of the backing plate are mutually attached to one side of the filter screen and one side of the dust sweeping rod.

Further, the gag lever post is about the central axis symmetric distribution of filter screen, the gag lever post constitutes sliding construction with the limiting plate, limiting plate one side is welded connection with reset spring's tip, another tip of reset spring laminates with one side of filter screen each other.

Furthermore, the brushes are distributed on the ash sweeping rods at equal intervals, the ash sweeping rods are symmetrically distributed about the central axis of the rotating shaft, and the sum of the diameters of the two ash sweeping rods and the diameter of the fixed rod is smaller than the diameter of the rotating shaft.

Further, the outer wall of the fixing rod is provided with threads, and the fixing rod is in threaded connection with the nut.

Compared with the prior art, the utility model has the beneficial effects that: this cooling blower for polyurethane foam processing can drive dust sweeping rod and brush and rotate when the operation to can clear up the dust on the filter screen, through swivel nut, make nut and dead lever separation, the elasticity that reset spring produced this moment can take off the filter screen, and then the convenience is to the clearance or the change of filter screen.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic structural view of the filter screen of the present invention after being disassembled;

FIG. 5 is a schematic view of the installation structure of the ash sweeping rod of the present invention.

In the figure: 1. a housing; 2. an air outlet; 3. an air inlet; 4. a support; 5. a motor; 6. a rotating shaft; 7. a filter screen; 8. a base plate; 9. a limiting rod; 10. a limiting plate; 11. a return spring; 12. a dust sweeping rod; 13. a brush; 14. fixing the rod; 15. a nut; 16. a fan blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a cooling fan for processing polyurethane foam plastic comprises a shell 1, an air outlet 2 is arranged at one end of the shell 1, an air inlet 3 is arranged at one side of the shell 1, a support 4 is arranged at the bottom of the shell 1, a motor 5 is arranged at the other side of the shell 1, the output end of the motor 5 is connected with a rotating shaft 6, a fan blade 16 is fixed on the outer wall of the rotating shaft 6, the fan blade 16 is positioned in the shell 1, a filter screen 7 is arranged at the outer side of the rotating shaft 6, a backing plate 8 is arranged at one side of the filter screen 7, an ash sweeping rod 12 is arranged at one side of the backing plate 8, the end part of the ash sweeping rod 12 is rotatably connected with the end part of the rotating shaft 6, a fixed rod 14 is fixed at the center of the end part of the rotating shaft 6, a nut 15 is arranged on the fixed rod 14, a limiting plate 10 is fixed on the inner wall of the air inlet 3, a return spring 11 is fixed at one side of the limiting plate 10, and limiting rods 9 penetrate through the limiting plates 10 and the return spring 11, the end part of the limiting rod 9 is fixedly connected with one side of the filter screen 7, and one side of the ash sweeping rod 12 is fixed with a brush 13.

Backing plate 8 designs for annular structure, and backing plate 8's both sides all laminate each other with one side of filter screen 7 and sweeping grey pole 12, have guaranteed to have the gap between filter screen 7 and the sweeping grey pole 12 to make brush 13 can clear up the dust on the filter screen 7.

The gag lever post 9 is about the central axis symmetric distribution of filter screen 7, gag lever post 9 constitutes sliding construction with limiting plate 10, limiting plate 10 one side is welded connection with reset spring 11's tip, another tip of reset spring 11 and one side of filter screen 7 are laminated each other, it can be fixed in a position motionless with limiting plate 10 through gag lever post 9 to have guaranteed that filter screen 7, when the atress is not carried on the filter screen 7 right side, the elasticity that reset spring 11 produced can be pushed out filter screen 7 from the inside of air intake 3.

The brush 13 is equidistantly distributed on the dust sweeping rod 12, the dust sweeping rods 12 are symmetrically distributed about the central axis of the rotating shaft 6, the sum of the diameters of the two dust sweeping rods 12 and the diameter of the fixed rod 14 is smaller than that of the rotating shaft 6, the brush 13 is guaranteed to rotate along with the dust sweeping rods 12, dust on the filter screen 7 can be cleaned, and the dust can be taken down from the dust sweeping rods 12 when the filter screen 7 moves to the right side.

The outer wall of the fixing rod 14 is provided with threads, the fixing rod 14 is in threaded connection with the nut 15, and the nut 15 is guaranteed to limit the position of the ash sweeping rod 12.

The working principle is as follows: when cooling blower is carrying out the during operation, motor 5 drives the pivot 6 rotatory, then pivot 6 passes through dead lever 14 and nut 15 and drives and sweep grey pole 12 and brush 13 rotation, thereby clear up the dust on filter screen 7, when filter screen 7 uses for a long time after or need change after damaging, swivel nut 15 this moment, because nut 15 is threaded connection with dead lever 14, make nut 15 and dead lever 14 separation, make and sweep grey pole 12 right side and do not block, reset spring 11's compressive force promotes filter screen 7 and remove to the right side after that, make filter screen 7 and reset spring 11 separation, filter screen 7 promotes two through backing plate 8 simultaneously and sweeps grey poles 12 and do the rotation of being close to each other, then it can to take off filter screen 7 from two ash poles 12.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A cooling fan for polyurethane foam processing comprises a shell (1), and is characterized in that: the dust cleaning device is characterized in that an air outlet (2) is arranged at one end of the shell (1), an air inlet (3) is formed in one side of the shell (1), a support (4) is installed at the bottom of the shell (1), a motor (5) is installed on the other side of the shell (1), an output end of the motor (5) is connected with a rotating shaft (6), fan blades (16) are fixed on the outer wall of the rotating shaft (6), the fan blades (16) are located inside the shell (1), a filter screen (7) is arranged on the outer side of the rotating shaft (6), a backing plate (8) is arranged on one side of the filter screen (7), a dust cleaning rod (12) is arranged on one side of the backing plate (8), the end portion of the dust cleaning rod (12) is rotatably connected with the end portion of the rotating shaft (6), a fixing rod (14) is fixed at the center of the end portion of the rotating shaft (6), and a nut (15) is arranged on the fixing rod (14), the inner wall of air intake (3) is fixed with limiting plate (10), one side of limiting plate (10) is fixed with reset spring (11), limiting plate (10) and reset spring (11) inside all run through has gag lever post (9), one side fixed connection of the tip of gag lever post (9) and filter screen (7), one side of sweeping grey pole (12) is fixed with brush (13).

2. The cooling fan for polyurethane foam processing as set forth in claim 1, wherein: the backing plate (8) is designed to be of an annular structure, and two sides of the backing plate (8) are mutually attached to one sides of the filter screen (7) and the dust sweeping rod (12).

3. The cooling fan for polyurethane foam processing as set forth in claim 2, wherein: the utility model discloses a filter screen, including gag lever post (9), limiting rod (9) and limiting plate (10), gag lever post (9) are about the central axis symmetric distribution of filter screen (7), gag lever post (9) and limiting plate (10) constitute sliding construction, limiting plate (10) one side is welded connection with reset spring's (11) tip, the other end of reset spring (11) is laminated with one side of filter screen (7) each other.

4. The cooling fan for polyurethane foam processing as set forth in claim 2, wherein: the brushes (13) are distributed on the ash sweeping rods (12) at equal intervals, the ash sweeping rods (12) are symmetrically distributed about the central axis of the rotating shaft (6), and the sum of the diameters of the two ash sweeping rods (12) and the diameter of the fixed rod (14) is smaller than the diameter of the rotating shaft (6).

5. The cooling fan for polyurethane foam processing as set forth in any one of claims 1 to 4, wherein: the outer wall of the fixing rod (14) is provided with threads, and the fixing rod (14) is in threaded connection with the nut (15).