CN210859368U - An energy-saving box-type centrifugal fan - Google Patents

Abstract

The utility model relates to the technical field of centrifugal fans, and discloses an energy-saving box-type centrifugal fan, which comprises a box body, a fan body and a double-shaft motor. The front side wall and the right side wall of the box body are respectively provided with an air outlet and an air inlet. , The dual-axis motor is fixedly connected to the top of the box, and one of the output ends of the dual-axis motor is connected to the fan body through a belt and a pulley. There is a filter in the box, and the filter is set on the side close to the air inlet to filter The side wall of the net is fixedly connected with the inner wall of the box body, and a reciprocating screw rod is arranged between the filter screen and the air inlet. and extend the settings outward. The utility model can clean and discharge the dust adsorbed on the filter net to the outside, so as to prevent the filter net from clogging and increase the load of the fan, thereby achieving the purpose of energy saving and being convenient for people to use.

Description

An energy-saving box-type centrifugal fan

technical field

The utility model relates to the technical field of centrifugal fans, in particular to an energy-saving box-type centrifugal fan.

Background technique

When the fan is working, the airflow enters the blade space from the axial direction of the fan, and then rotates with the impeller on the one hand under the drive of the impeller; on the other hand, under the action of inertia, the energy is increased, leaving the impeller in the radial direction, and the centrifugal force generated is used to do work. The fan is called a centrifugal fan.

At present, the box-type centrifugal fan is in use. The air inhaled by the air inlet is filtered through the filter cloth, and the dust is filtered on the filter cloth. When there is too much dust on the filter cloth, it is easy to block the filter cloth, resulting in poor air intake. Therefore, the motor is overloaded, resulting in a waste of energy, which is inconvenient for people to use.

Utility model content

The purpose of the utility model is to solve the problem that when there is too much dust on the filter cloth in the prior art, it is easy to block the filter cloth, resulting in poor air intake, thereby overloading the motor, causing waste of energy and inconvenience for people to use. , and proposed an energy-saving box-type centrifugal fan.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

An energy-saving box-type centrifugal fan includes a box body, a fan body and a double-shaft motor. The front side wall and the right side wall of the box body are respectively provided with an air outlet and an air inlet. The top is fixedly connected, and one of the output ends of the biaxial motor is connected to the fan body through a belt and a pulley. A filter screen is installed in the box, and the filter screen is set on the side close to the air inlet. The side wall of the filter screen It is fixedly connected with the inner wall of the box body, and a reciprocating screw rod is arranged between the filter screen and the air inlet. The top of the box body is fixedly connected with a reduction box, the other output end of the biaxial motor is fixedly connected with the input end of the reduction box, and the output end of the reduction box is fixedly adjusted with a first bevel gear, so The top of the reciprocating screw rod is fixedly sleeved with a second bevel gear, and the second bevel gear and the first bevel gear are meshed with each other. A cleaning brush is fixedly connected to the side wall, the cleaning brush is arranged in contact with the filter screen, and a discharging mechanism matching the filter screen is provided at the bottom of the box body.

Preferably, the discharging mechanism includes a rotating plate, a rotating shaft and a torsion spring, the bottom of the box is provided with a through hole matching the rotating plate, and the through hole is located on the right side of the filter screen, and the two parts of the rotating shaft The ends are respectively fixedly connected with the two side walls of the through hole, the rotating plate and the torsion spring are both movably sleeved with the rotating shaft, and the two ends of the torsion spring are respectively fixed and connected with the side wall of the through hole and the side wall of the rotating plate, so The bottom of the sliding block is fixedly connected with an abutting rod, and the abutting rod and the rotating plate are arranged in cooperation with each other.

Preferably, a sealing gasket is fixed on the side wall of the through hole, and the sealing gasket is arranged against the rotating plate.

Preferably, a U-shaped protective shell is provided on the right side of the reciprocating screw rod, and both ends of the U-shaped protective shell are respectively fixedly connected to the inner walls of the box body on both sides.

Preferably, the top of the box body is fixedly connected with a protective cover matched with the biaxial motor and the reduction box.

Preferably, the four corners of the bottom of the box body are fixedly connected with support feet, and the bottom of the support feet is provided with anti-skid lines.

Compared with the prior art, the utility model provides an energy-saving box-type centrifugal fan, which has the following beneficial effects:

1. This energy-saving box-type centrifugal fan can clean the dust adsorbed on the filter screen through the filter screen, reciprocating screw, slider, cleaning brush, first bevel gear and second bevel gear to prevent filtration. The network is blocked, causing the load of the fan to increase, so as to save energy and facilitate people's use.

2. The energy-saving box-type centrifugal fan can regularly discharge the dust cleaned on the filter net to the outside of the box through the discharge mechanism, which is convenient for people to use.

The parts not involved in the device are the same as the existing technology or can be realized by using the existing technology. The utility model can clean the dust adsorbed on the filter screen and discharge it to the outside, so as to prevent the filter screen from being blocked and increase the load of the fan. , so as to achieve the purpose of energy saving and facilitate people's use.

Description of drawings

Fig. 1 is the structural representation of a kind of energy-saving box-type centrifugal fan proposed by the utility model;

FIG. 2 is an enlarged view of the structure of part A of FIG. 1 .

In the picture: 1 box, 2 fan body, 3 biaxial motor, 4 filter, 5 reciprocating screw, 6 reduction box, 7 first bevel gear, 8 second bevel gear, 9 slider, 10 cleaning brush, 11 Rotating plate, 12 rotating shaft, 13 torsion spring, 14 counter rod, 15 sealing gasket, 16 U-shaped protective shell, 17 protective cover, 18 supporting feet.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1-2, an energy-saving box-type centrifugal fan includes a box body 1, a fan body 2 and a biaxial motor 3. The front side wall and the right side wall of the box body 1 are respectively provided with an air outlet and an air inlet. The shaft motor 3 is fixedly connected with the top of the box body 1, and one of the output ends of the biaxial motor 3 is connected with the fan body 2 through a belt and a pulley. The upper structure is the main structure of the box-type centrifugal fan in the prior art, Not much to describe here, the box body 1 is provided with a filter screen 4, and the filter screen 4 is arranged on the side close to the air inlet, the side wall of the filter screen 4 is fixedly connected with the inner wall of the box body 1, and the filter screen 4 and the air inlet There is a reciprocating screw 5 in between, the top of the reciprocating screw 5 rotates with the inner wall of the box 1 through the bearing, and the top of the reciprocating screw 5 penetrates the inner wall of the box 1 and extends outward, and the top of the box 1 is fixedly connected There is a reduction box 6, the other output end of the biaxial motor 3 is fixedly connected with the input end of the reduction box 6, and the output end of the reduction box 6 is fixedly adjusted with a first bevel gear 7, and the top of the reciprocating screw rod 5 is fixedly sleeved with a The second bevel gear 8, and the second bevel gear 8 and the first bevel gear 7 are meshed with each other, the reciprocating screw 5 is movably sleeved with a slider 9, and the side wall of the slider 9 facing the filter screen 4 is fixedly connected with a The cleaning brush 10 is arranged in contact with the filter screen 4. When the dual-axis motor 3 starts, the fan body 2 can be started through the provided belt and pulley, and then the air is sucked. When the other side of the dual-axis motor 3 is started When the output end rotates, the provided reduction box 6 can drive the first bevel gear 7 to rotate at a slow speed, thereby making the second bevel gear 8 rotate, and the second bevel gear 8 rotates to drive the reciprocating screw 5 to rotate. The force on the rotation direction of the slider 9 with the filter screen 4 is limited, so that the slider 9 can be reciprocated up and down through the rotation of the reciprocating screw 5, so that the cleaning brush 10 can clean the dust on the surface of the filter screen 4. The bottom of the body 1 is provided with a discharging mechanism matched with the filter screen 4 .

The discharge mechanism includes a rotating plate 11, a rotating shaft 12 and a torsion spring 13. The bottom of the box body 1 is provided with a through hole that matches the rotating plate 11, and the through hole is located on the right side of the filter screen 4. The two ends of the rotating shaft 12 are respectively It is fixedly connected with the two side walls of the through hole, the rotating plate 11 and the torsion spring 13 are both movably sleeved with the rotating shaft 12, and the two ends of the torsion spring 13 are respectively fixed and connected with the side wall of the through hole and the side wall of the rotating plate 11. The bottom of the slider 9 is fixedly connected with an abutting rod 14 , and the abutting rod 14 and the rotating plate 11 are arranged in cooperation with each other. At the same time, when the sliding block 9 moves downward, the abutting rod 14 moves downwardly and can resist the rotating plate 11 to rotate around the rotating shaft 12 . , so that the through hole is opened, and then the fan body 2 blows the cleaned dust out of the box 1 during the suction process, which is convenient for people to use. The turning plate 11 returns to its original position to ensure the effect of air suction.

A sealing gasket 15 is fixed on the side wall of the through hole, and the sealing gasket 15 is arranged against the rotating plate 11 , which can improve the sealing performance between the rotating plate 11 and the through hole.

The right side of the reciprocating screw rod 5 is provided with a U-shaped protective shell 16, and the two ends of the U-shaped protective shell 16 are respectively fixedly connected to the inner walls on both sides of the box body 1, which can ensure the stability of the slider 9 during the sliding process. And the reciprocating screw 5 can be protected.

A protective cover 17 matching the biaxial motor 3 and the reduction box 6 is fixedly connected to the top of the box body 1 , and the biaxial motor 3 and the reduction box 6 can be protected by the provided protective cover 17 .

The bottom four corners of the box body 1 are fixedly connected with support feet 18, and the bottom of the support feet 18 is provided with anti-skid lines, which can ensure the stability of the box body 1 during use, and can ensure that the turning plate 11 can rotate.

In the present utility model, when the biaxial motor 3 is started, the fan body 2 can be activated by the provided belt and pulley, and then the fan body 2 can be sucked. Some reduction boxes 6 can drive the first bevel gear 7 to rotate at a slow speed, thereby making the second bevel gear 8 rotate, and the second bevel gear 8 rotates to drive the reciprocating screw 5 to rotate. 9. The force in the rotation direction is limited, so that the sliding block 9 can be reciprocated up and down by the rotation of the reciprocating screw 5, so that the cleaning brush 10 can clean the dust on the surface of the filter screen 4. At the same time, when the sliding block 9 moves downward When the abutting rod 14 moves downward, the rotating plate 11 can rotate around the rotating shaft 12, so that the through hole is opened, so that the fan body 2 can blow the cleaned dust out of the box body 1 during the suction process, which is convenient for people to After use, through the provided torsion spring 13, the torsion force of the torsion spring 13 can drive the rotating plate 11 to return to its original position, so as to ensure the effect of air suction.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. An energy-saving box-type centrifugal fan, comprising a box body (1), a fan body (2) and a biaxial motor (3). Air outlet and air inlet, the biaxial motor (3) is fixedly connected with the top of the box body (1), and one of the output ends of the biaxial motor (3) is connected with the fan body (2) through a belt and a pulley, which It is characterized in that a filter screen (4) is provided in the box body (1), and the filter screen (4) is arranged on the side close to the air inlet, and the side wall of the filter screen (4) is connected to the inner wall of the box body (1). Fixed connection, and a reciprocating screw (5) is arranged between the filter screen (4) and the air inlet, the top of the reciprocating screw (5) rotates with the inner wall of the box (1) through the bearing, and the reciprocating screw (5) ) penetrates through the inner wall of the box (1) and extends outward, the top of the box (1) is fixedly connected with a reduction box (6), and the other output end of the biaxial motor (3) is connected to the reduction box (1). The input end of the box (6) is fixedly connected, and the output end of the reduction box (6) is fixedly adjusted with a first bevel gear (7), and the top of the reciprocating screw (5) is fixedly sleeved with a second bevel gear (8). ), and the second bevel gear (8) and the first bevel gear (7) are meshed with each other, the reciprocating screw (5) is movably sleeved with a slider (9), and the slider (9) faces the filter screen ( 4) A cleaning brush (10) is fixedly connected to the side wall of one side, the cleaning brush (10) is arranged in contact with the filter screen (4), and the bottom of the box body (1) is provided with a filter screen (4) Matching discharge mechanism. 2. An energy-saving box-type centrifugal fan according to claim 1, wherein the discharging mechanism comprises a rotating plate (11), a rotating shaft (12) and a torsion spring (13), and the box (11) 1) A through hole matching the rotating plate (11) is provided at the bottom, and the through hole is located on the right side of the filter screen (4), and the two ends of the rotating shaft (12) are respectively fixed to the two side walls of the through hole. connection, the rotating plate (11) and the torsion spring (13) are movably sleeved with the rotating shaft (12), and the two ends of the torsion spring (13) are respectively connected to the side wall of the through hole and the side wall of the rotating plate (11). The bottom of the sliding block (9) is fixedly connected with an abutting rod (14), and the abutting rod (14) and the turning plate (11) are arranged in cooperation with each other. 3. An energy-saving box-type centrifugal fan according to claim 2, characterized in that, a sealing gasket (15) is fixedly arranged on the side wall of the through hole, and the sealing gasket (15) is connected to the rotating plate (15). 11) offset setting. 4. An energy-saving box-type centrifugal fan according to claim 1, characterized in that, a U-shaped protective shell (16) is provided on the right side of the reciprocating screw (5), and the U-shaped protective shell (16) ) are respectively fixedly connected to the inner walls on both sides of the box body (1). 5. An energy-saving box-type centrifugal fan according to claim 1, characterized in that the top of the box (1) is fixedly connected with a double-shaft motor (3) and a reduction box (6) that match protective cover (17). 6. An energy-saving box-type centrifugal fan according to claim 1, wherein the bottom four corners of the box body (1) are fixedly connected with support feet (18), and the support feet (18) are Anti-slip pattern on the bottom.

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