CN216278549U

CN216278549U - Centrifugal fan of sweeper

Info

Publication number: CN216278549U
Application number: CN202122870135.1U
Authority: CN
Inventors: 阳衡; 刘涌; 杨帆; 卿杰超
Original assignee: Hunan Niuenchi New Energy Vehicle Co ltd
Current assignee: Hunan Niuenchi New Energy Vehicle Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-12
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a centrifugal fan of a sweeper, which comprises: dustbin side support piece, impeller, spiral case, motor side support piece, motor and baffle. The dustbin side supporting piece is connected to one side of the volute and can be fixedly connected with an external sweeper dustbin, the impeller is arranged in the middle of the volute, and a second air inlet arranged on the impeller is communicated with a first air inlet arranged on the dustbin side supporting piece; a plurality of first air outlets arranged on the impeller are communicated with a third air inlet arranged on the inner ring of the volute; the two sides of the volute are respectively connected with the garbage can side supporting piece and the motor side supporting piece; the motor and the baffle are respectively arranged on two sides of the motor side supporting piece. The utility model can improve the air inlet structure and the air outlet structure of the conventional centrifugal fan, improve the design of cleaning dust in the centrifugal fan and improve the design of the volute supporting structure.

Description

Centrifugal fan of sweeper

Technical Field

The utility model relates to the technical field of sweeper, in particular to a centrifugal fan of a sweeper.

Background

Most types of fans equipped in the conventional sweeper are general fan products, and the fan products are not designed and manufactured specifically for the operation characteristics and requirements of the sweeper. The fan is used as a key device of the sweeper, and the working efficiency of the fan can directly influence the working time of the whole sweeper. In addition, the weight of the fan can directly influence and lift the center of gravity of the whole sweeper, so that the driving quality of the sweeper is influenced, and complaints are easily caused by noise pollution generated by the fan in the working process. Based on this, chinese patent CN103423203B discloses a centrifugal fan, which includes a volute and an impeller disposed in the volute, wherein the volute includes an air inlet, an air outlet, a front disc and a rear disc disposed in parallel, and a connecting portion disposed between the front disc and the rear disc, and both the air inlet and the air outlet are disposed on the connecting portion along a direction parallel to the front disc and the rear disc. The centrifugal fan can simplify the spatial structure layout of the sweeper, avoid pressure loss and reduce noise pollution.

However, the air inlet direction and the air outlet direction of the centrifugal fan are arranged adjacently, so that the centrifugal fan is difficult to arrange on the sweeper reasonably. In addition, centrifugal fan's air inlet and motor sweeper rubbish bin communicate, consequently, are difficult to avoid being brought into the rubbish of types such as dust on the centrifugal fan, because the spiral case sets up to crooked shape, so the inside dust of centrifugal fan is difficult to be cleared up. Moreover, the centrifugal fan is not provided with a fixing and supporting structure for products, so that the volute, the impeller and other structures are easy to deform and fail.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a centrifugal fan for a sweeper, aiming at the technical problems of how to improve the air inlet structure and the air outlet structure of the centrifugal fan, the design for cleaning the dust in the centrifugal fan and the design for improving the volute supporting structure.

A sweeper centrifugal fan, comprising: dustbin side support piece, impeller, spiral case, motor side support piece and motor. The dustbin side support piece is provided with a first air inlet and a support piece main body, and the first air inlet is arranged in the middle of the support piece main body. The impeller is provided with a second air inlet, an impeller main body and a plurality of first air outlets; the second air inlet is arranged in the middle of the impeller main body and is connected with the first air inlet; a plurality of first gas outlets are uniformly arranged at the edge of the impeller main body. The volute is provided with a third air inlet, a volute curved surface body, a dust discharge port, an ash removal cover and a second air outlet; the third air inlet is arranged on the inner side of the volute curved surface body, and the plurality of first air outlets are respectively connected with the third air inlet; the dust exhaust port is arranged on one side of the volute curved surface body, and the dust removing cover is movably connected with the dust exhaust port; the second air outlet is arranged at one end of the volute curved surface body. The motor side supporting piece is arranged on the other side of the volute relative to the garbage bin side supporting piece; the motor is connected to one side of the motor-side support, and the motor is drivingly connected to the impeller.

Furthermore, the supporting piece at the side of the garbage can is also provided with a plurality of structural reinforcing ribs which are uniformly arranged on the surface of the supporting piece main body, and each structural reinforcing rib is respectively connected with the edge of the first air inlet and the edge of the supporting piece main body.

Furthermore, a plurality of supporting piece mounting holes are uniformly formed in the periphery of the supporting piece on the side of the garbage can.

Furthermore, a plurality of fixed reinforcing strips are arranged on the side surface of the motor side supporting piece.

Further, a motor shaft through hole is formed in the middle of the motor side supporting piece.

Furthermore, a baffle is further arranged on the side face of the motor side supporting piece, and the baffle is arranged on the other side of the motor side supporting piece relative to the motor.

In summary, the centrifugal fan of the sweeper provided by the utility model is provided with the dustbin side supporting piece, the impeller, the volute, the motor side supporting piece, the motor and the baffle. The dustbin side supporting piece is connected to one side of the volute and can be fixedly connected with an external sweeper dustbin, the impeller is arranged in the middle of the volute, and a second air inlet arranged on the impeller is communicated with a first air inlet arranged on the dustbin side supporting piece; the impeller is provided with a plurality of first air outlets which are communicated with a third air inlet arranged on the inner ring of the volute. Therefore, the airflow can smoothly flow through the dustbin side supporting member to the impeller and from the impeller to the volute; and the air current flows in from the direction of the central axis of the impeller and then passes through the rotation of the impeller so as to be sprayed out from the periphery of the impeller, therefore, the direction of the air current is changed to be perpendicular to the direction of the air current at the first air inlet when the air current is guided from the inside of the volute to the second air outlet to be discharged, therefore, the side surface of the centrifugal fan of the sweeper can be fixedly connected to the surface of an external sweeper garbage collection box, and the structural layout of the sweeper is further simplified. In addition, the side of spiral case still is provided with dust exhaust mouth and deashing lid, the dust exhaust mouth is favorable to the user to regularly clear up the inside of spiral case, the deashing lid is favorable to avoiding the user to clear up need dismantle its body during the spiral case to the maintenance cost of spiral case has been reduced. Moreover, the regular cleaning of the dust and other garbage in the volute is also beneficial to reducing noise pollution. In addition, the two sides of the volute are respectively connected with the garbage can side supporting piece and the motor side supporting piece, so that the structural strength of the volute is increased to avoid the volute from deforming and losing efficacy. Simultaneously, the side of dustbin side support piece still is provided with a plurality of structure strengthening ribs, the structure strengthening rib is favorable to further increasing dustbin side support piece's structural strength.

Drawings

FIG. 1 is an exploded view of a centrifugal fan of a sweeper truck according to the present invention;

FIG. 2 is a schematic structural view of a centrifugal fan of a sweeper truck according to the present invention;

FIG. 3 is a schematic cross-sectional view of a centrifugal fan of a sweeper truck.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 3, the centrifugal fan of a sweeper of the present invention includes: dustbin side support 1, impeller 2, spiral case 3, motor side support 4 and motor 5. The dustbin side support 1 has a first air inlet 101 and a support body 102, and the first air inlet 101 is disposed in the middle of the support body 102. The impeller 2 is provided with a second air inlet 201, an impeller main body 202 and a plurality of first air outlets 203; the second air inlet 201 is arranged in the middle of the impeller main body 202, and the second air inlet 201 is connected with the first air inlet 101; the first air outlets 203 are uniformly arranged at the edge of the impeller main body 202. The volute 3 is provided with a third air inlet 301, a volute curved surface body 302, a dust exhaust port 303, an ash cleaning cover 304 and a second air outlet 305; the third air inlet 301 is arranged on the inner side of the volute curved surface body 302, and the plurality of first air outlets 203 are respectively connected with the third air inlet 301; the dust exhaust port 303 is arranged at one side of the volute curved surface body 302, and the dust removing cover 304 is movably connected with the dust exhaust port 303; the second air outlet 305 is disposed at one end of the volute curved body 302. The motor side support 4 is arranged at the other side of the volute 3 relative to the dustbin side support 1; the motor 5 is connected to one side of the motor-side support 4, and the motor 5 is drivingly connected to the impeller 2.

Specifically, before the centrifugal fan of the sweeper truck is in a working process, the garbage bin side supporting piece 1 needs to be connected with an external sweeper truck garbage collecting box, specifically, the garbage bin side supporting piece 1 can be directly and fixedly connected to a proper position of the external sweeper truck garbage collecting box, then, the first air inlet 101 is communicated with an inner cavity of the sweeper truck garbage collecting box, the first air inlet 101 can be directly connected with an air outlet of the sweeper truck garbage collecting box, and the first air inlet 101 can also be communicated with an air outlet of the external sweeper truck garbage collecting box through a hose. After the garbage can side supporting member 1 is firmly and fixedly connected with an external garbage collection box of a sweeper, a user can start the motor 5, the motor 5 drives the impeller 2 to rotate around the rotation center of the impeller, at the moment, a negative pressure is generated at the second air inlet 201 arranged in the middle of the impeller main body 202, then, external air flows into the second air inlet 201 from the first air inlet 101, then, the air flows are diffused to a plurality of first air outlets 203 from the second air inlet 201, then, the air flows into the third air inlet 301 and then flows to the second air outlet 305, and finally, the air flows are discharged to the external environment from the second air outlet 305. Specifically, the gas flowing direction of the first gas inlet 101 and the gas flowing direction of the second gas outlet 305 are respectively in two mutually perpendicular directions, so that the centrifugal fan of the sweeper can be tightly attached to the outer surface of the garbage collection box of the sweeper for fixed installation, the arrangement space of the centrifugal fan of the sweeper is further simplified, and the structural design of the sweeper is further simplified. In addition, before the airflow enters the first air inlet 101 from an external garbage collection box, dust and other garbage can be carried, and the garbage can be thrown around by the impeller main body 202 rotating at a high speed after flowing to the first air outlet 203 until the garbage collides with the inner wall of the volute curved body 302 and loses inertia force, and then the garbage can be deposited below the inner part of the volute curved body 302 under the traction of gravity. At this time, after the motor 5 is turned off, the user may open the dust removing cover 304 so that the dust and other garbage deposited inside the volute curved body 302 may be dumped out, thereby preventing the rotation of the impeller 2 from being affected by a large amount of garbage deposited inside the volute curved body 302. In addition, the periodic cleaning of the garbage inside the volute curved surface body 302 is also beneficial to reducing the noise pollution generated when the centrifugal fan of the sweeper works.

Further, the supporting member 1 on the garbage can side further includes a plurality of structural reinforcing ribs 103, the plurality of structural reinforcing ribs 103 are uniformly disposed on the surface of the supporting member main body 102, and each structural reinforcing rib 103 is respectively connected to the edge of the first air inlet 101 and the edge of the supporting member main body 102. Specifically, the structural reinforcing rib 103 can reinforce the bearing capacity of the support main body 102, ensure that the volute curved body 302 is not deformed by stress, and ensure that the impeller main body 202 rotates at high speed.

Furthermore, a plurality of supporting piece mounting holes 104 are uniformly arranged around the supporting piece 1 at the side of the dustbin. The support member mounting hole 104 may fixedly connect the dustbin side support member 1 to the side of the scroll casing 3.

Further, a plurality of fixing reinforcing bars 401 are disposed on the side surface of the motor side supporting member 4. The fixing reinforcing bar 401 facilitates the mounting and fixing of the motor 5 and reinforces the structural strength of the motor-side support 4.

Further, a motor shaft through hole 402 is formed in the middle of the motor side supporting member 4, and the motor shaft through hole 402 enables the front end of the motor 5 to break through the motor side supporting member 4 and then be in driving connection with the impeller 2. In addition, a baffle 6 is further disposed on a side surface of the motor side support 4, and the baffle 6 is disposed on the other side of the motor side support 4 with respect to the motor 5. The baffle 6 is beneficial to preventing the impeller 5 from driving impurities such as dust and the like to enter the motor 5, so that the motor 5 is damaged.

In summary, the centrifugal fan of the sweeper provided by the utility model is provided with the dustbin side supporting piece 1, the impeller 2, the volute 3, the motor side supporting piece 4, the motor 5 and the baffle 6. The dustbin side supporting piece 1 is connected to one side of the volute 3, the dustbin side supporting piece 1 can be fixedly connected with an external sweeper rubbish collecting box, the impeller 2 is arranged in the middle of the volute 3, and a second air inlet 201 arranged on the impeller 2 is communicated with a first air inlet 101 arranged on the dustbin side supporting piece 1; the impeller 2 is provided with a plurality of first air outlets 203 which are communicated with a third air inlet 301 arranged on the inner ring of the volute 3. Therefore, the airflow can smoothly flow through the dustbin side support 1 to the impeller 2 and from the impeller 2 to the scroll casing 3; in addition, the air flow flows in from the direction of the central axis of the impeller 2 and then is ejected from the periphery of the impeller 2 through the rotation of the impeller 2, so that the direction of the air flow is changed to be perpendicular to the direction of the air flow at the first air inlet 101 when the air flow is guided from the inside of the volute 3 to the second air outlet 305 and then is ejected, and therefore, the side surface of the centrifugal fan of the sweeper can be fixedly connected to the surface of an external sweeper garbage collection box, and the structural layout of the sweeper is further simplified. In addition, the side of spiral case 3 still is provided with dust exhaust port 303 and deashing lid 304, dust exhaust port 303 is favorable to the user to regularly clear up the inside of spiral case 3, deashing lid 304 is favorable to avoiding the user to clear up its body need be dismantled during spiral case 3 to the maintenance cost of spiral case 3 has been reduced. Moreover, the regular cleaning of the dust and other garbage in the volute 3 is also beneficial to reducing noise pollution. In addition, the two sides of the volute 3 are respectively connected with the dustbin side supporting piece 1 and the motor side supporting piece 4, so that the structural strength of the volute 3 is increased to avoid the volute 3 from deforming and losing efficacy. Simultaneously, the side of dustbin side support piece 1 still is provided with a plurality of structure strengthening ribs 103, the structure strengthening rib is favorable to further increasing dustbin side support piece 1's structural strength.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a motor sweeper centrifugal fan, its characterized in that, this motor sweeper centrifugal fan includes: the garbage can comprises a garbage can side supporting piece (1), an impeller (2), a volute (3), a motor side supporting piece (4) and a motor (5); the dustbin side support (1) is provided with a first air inlet (101) and a support main body (102), wherein the first air inlet (101) is arranged in the middle of the support main body (102); the impeller (2) is provided with a second air inlet (201), an impeller main body (202) and a plurality of first air outlets (203); the second air inlet (201) is arranged in the middle of the impeller main body (202), and the second air inlet (201) is connected with the first air inlet (101); the first air outlets (203) are uniformly arranged at the edge of the impeller main body (202); the volute (3) is provided with a third air inlet (301), a volute curved surface body (302), a dust exhaust port (303), an ash cleaning cover (304) and a second air outlet (305); the third air inlet (301) is arranged on the inner side of the volute curved surface body (302), and the first air outlets (203) are respectively connected with the third air inlet (301); the dust exhaust port (303) is arranged on one side of the volute curved surface body (302), and the dust removing cover (304) is movably connected with the dust exhaust port (303); the second air outlet (305) is arranged at one end of the volute curved surface body (302); the motor side support (4) is arranged on the other side of the volute (3) relative to the dustbin side support (1); the motor (5) is connected to one side of the motor-side support (4), and the motor (5) is drivingly connected to the impeller (2).

2. The sweeper centrifugal fan of claim 1, wherein: the garbage can side supporting piece (1) is further provided with a plurality of structural reinforcing ribs (103), the structural reinforcing ribs (103) are uniformly arranged on the surface of the supporting piece main body (102), and each structural reinforcing rib (103) is connected with the edge of the first air inlet (101) and the edge of the supporting piece main body (102) respectively.

3. The sweeper centrifugal fan of claim 2, wherein: and a plurality of supporting piece mounting holes (104) are uniformly formed in the periphery of the garbage can side supporting piece (1).

4. The sweeper centrifugal fan of claim 1, wherein: the side surface of the motor side supporting piece (4) is provided with a plurality of fixing reinforcing strips (401).

5. The sweeper centrifugal fan of claim 4, wherein: and a motor shaft through hole (402) is formed in the middle of the motor side supporting piece (4).

6. The sweeper centrifugal fan of claim 1, wherein: the side surface of the motor side supporting piece (4) is also provided with a baffle (6), and the baffle (6) is arranged on the other side of the motor side supporting piece (4) relative to the motor (5).