CN210565240U

CN210565240U - Centrifugal fan box with multiple combinations of air inlet and air outlet directions

Info

Publication number: CN210565240U
Application number: CN201921580060.XU
Authority: CN
Inventors: 俞志青
Original assignee: Shangyu Branch Of Beijing Shangfeng Ventilator Manufacturing Co Ltd
Current assignee: Shangyu Branch Of Beijing Shangfeng Ventilator Manufacturing Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-05-19
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses a centrifugal fan box with multiple combinations of air inlet and outlet directions, which comprises a box body; the box body comprises a central support frame in a rectangular frame shape; the upper end surface and the lower end surface of the central support frame are respectively provided with an upper air inlet frame and a lower air inlet frame; the left and right ends of the central support frame are sleeved with the left and right seal frames in the left and right directions; the end surfaces far away from the left and right sealing frames are respectively formed with a left and right inlet and outlet frame; the left right in-out frame is positioned at the lower part; the left and right in-out frames on the right side are positioned at the upper part; a central driving column is rotatably arranged between the front side wall and the rear side wall of the central supporting frame; the middle part of the central driving column is fixed with an impeller; a volute is rotatably arranged between the front side wall and the rear side wall of the central support frame; the volute consists of a volute main body and an air outlet guide pipe; the side walls of the left and right sealing frames, which are far away from each other, are respectively formed with a left and right air outlet with a rectangular hole shape, which are matched with the air outlet guide pipe; utility model advantage: the air inlet and outlet directions can be selected to combine into a plurality of inlet and outlet modes, so that the air inlet and outlet device is suitable for different installation conditions and has strong adaptability.

Description

Centrifugal fan box with multiple combinations of air inlet and air outlet directions

Technical Field

The utility model relates to a centrifugal fan box's technical field, concretely relates to centrifugal fan box of multiple combination of business turn over wind direction.

Background

The fan box can be divided into two types of smoke prevention and ventilation according to purposes, and can be further divided into a centrifugal type and an axial flow type according to a working principle, wherein the centrifugal type fan box is widely used, only in the actual use process, the centrifugal type fan box has a plurality of defects, and the centrifugal type fan box is usually fixed at a certain position to work; in order to match with the installation conditions of different air inlet directions and air outlet directions, the same centrifugal fan box is often designed with different models; thus, the air inlet and outlet directions of different styles are different; thus, if unexpected changes occur, the given model cannot be installed adaptively.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a purpose provides a centrifugal fan case of the multiple combination of business turn over wind direction to the poor technical problem of current fan case installation adaptability.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a centrifugal fan box with multiple combinations of air inlet and air outlet directions comprises a box body; the box body comprises a rectangular frame-shaped central support frame which penetrates through the center of the middle part; the upper end surface and the lower end surface of the central support frame are respectively provided with an upper air inlet frame and a lower air inlet frame which are communicated with the inside of the central support frame; the far end surfaces of the pair of upper and lower air inlet frames are respectively detachably connected with a sealing connecting plate; the left end and the right end of the central support frame can move left and right and are provided with a left sealing frame and a right sealing frame; the pair of left and right sealing frames are rectangular frames with opposite openings; the left and right ends of the central support frame are sleeved with the left and right seal frames in the left and right directions; the end surfaces far away from the left and right sealing frames are respectively formed with a left and right inlet and outlet frame; the left right in-out frame is positioned at the lower part; the left and right in-out frames on the right side are positioned at the upper part; a central driving column is rotatably arranged between the front side wall and the rear side wall of the central supporting frame; the middle part of the central driving column is fixed with an impeller; a volute is rotatably arranged between the front side wall and the rear side wall of the central support frame; the volute consists of a volute main body and an air outlet guide pipe; the front side wall and the rear side wall of the volute main body are respectively provided with an air suction opening; the side walls of the left and right sealing frames, which are far away from each other, are respectively formed with a left and right air outlet with a rectangular hole shape, which are matched with the air outlet guide pipe; the left air outlet and the right air outlet are communicated with the left inlet frame and the right outlet frame on the corresponding sides; when the air outlet guide pipe is horizontally arranged to the right and the distance between the left sealing frame and the right sealing frame is the closest, the right end of the air outlet guide pipe is horizontally inserted into the left air outlet and the right air outlet on the right side; when the air outlet duct is horizontally arranged in the left direction and the distance between the left sealing frame and the right sealing frame is the closest, the left end of the air outlet duct is horizontally inserted into the left air outlet and the right air outlet on the left side.

Preferably, the left and right sealing frames have long-hole-shaped left and right adjusting holes formed in the upper and lower side walls thereof, respectively; the upper end surface and the lower end surface of the central support frame are respectively screwed with a pair of left and right limit bolts; the left and right limiting bolts vertically penetrate through left and right adjusting holes on the corresponding sides.

Preferably, the front end of the central driving column exceeds the front end surface of the central supporting frame and is fixed with a driven pulley; a central driving motor is fixed at the lower end of the front end surface of the central support frame; a driving belt wheel is fixed at the front end of an output shaft of the central driving motor; a synchronous belt wheel is arranged between the driving belt wheel and the driven belt wheel.

Preferably, the rear side wall of the central support frame is formed with a rotation avoiding groove; a cylindrical supporting cylinder with an opening at the front end is formed on the rear end surface of the central supporting frame; the rear end of the central driving column is pivoted on the rear side wall of the supporting cylinder; a pair of cylindrical connecting rods which are uniformly distributed circumferentially are formed on the rear end face of the volute main body; the rear end of the connecting rod is formed with an external gear; the outer gear is coaxially and rotatably arranged on the rear side wall of the supporting cylinder; a volute adjusting motor is fixed at the upper end of the rear end face of the central support frame; an output shaft of the volute adjusting motor is fixedly provided with an adjusting driving gear; the adjusting driving gear penetrates through the side wall of the supporting cylinder to be meshed with the external gear.

Preferably, in the above aspect, the impeller is a forward-inclined multi-blade impeller.

Preferably, the left and right inlet and outlet frames and the upper and lower air inlet frames are formed with a plurality of connecting holes for bolts to pass through; the sealing connecting plate is connected with the upper air inlet frame and the lower air inlet frame through bolts and nuts; and a mounting hole for mounting the centrifugal fan box is formed in the sealing connecting plate.

The beneficial effects of the utility model reside in that: the air inlet and outlet directions can be selected to combine into a plurality of inlet and outlet modes, so that the air inlet and outlet device is suitable for different installation conditions and has strong adaptability.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a schematic structural view of a cross section of the present invention;

fig. 3 is a schematic structural view of a cross section of the present invention;

in the figure, 10, a box body; 11. a central support frame; 111. an upper air inlet frame and a lower air inlet frame; 112. a support cylinder; 12. a sealing connecting plate; 13. a left sealing frame and a right sealing frame; 130. a left and right adjustment hole; 131. left and right in-out frames; 132. a left and a right limit bolts; 14. a central drive column; 141. a driven pulley; 15. a volute; 151. a volute body; 152. an air outlet duct; 153. a connecting rod; 154. an outer gear; 16. a volute regulating motor; 161. adjusting the driving gear; 17. a central drive motor; 171. a driving pulley; 18. a synchronous pulley.

Detailed Description

As shown in fig. 1 and 2, a centrifugal fan box with multiple combinations of air inlet and air outlet directions comprises a box body 10; the box body 10 comprises a rectangular frame-shaped central support frame 11 which penetrates through the center of the middle part; the upper and lower end surfaces of the central support frame 11 are respectively formed with an upper and lower air inlet frame 111, and the upper and lower air inlet frames 111 are communicated with the inside of the central support frame 11; the far end surfaces of the pair of upper and lower air inlet frames 111 are respectively detachably connected with a sealing connecting plate 12; the left end and the right end of the central support frame 11 can move left and right, and left and right seal frames 13 are arranged; the pair of left and right sealing frames 13 are rectangular frames with opposite openings; a pair of left and right seal frames 13 are sleeved at the left and right ends of the central support frame 11 in the left and right directions; left and right inlet and outlet frames 131 are respectively formed on the far end surfaces of the left and right seal frames 13; the left right entry and exit frame 131 is located at the lower part; the right left in-out frame 131 is located at the upper part; a central driving column 14 is rotatably arranged between the front side wall and the rear side wall of the central supporting frame 11; the middle part of the central driving column 14 is fixed with an impeller; a volute 15 is rotatably arranged between the front side wall and the rear side wall of the central support frame 11; the volute 15 consists of a volute main body 151 and an air outlet guide pipe 152; the front and rear side walls of the volute main body 151 are respectively formed with an air suction opening 150; the side walls of the pair of left and right sealing frames 13 far away are respectively formed with a left and right air outlet with a rectangular hole shape matched with the air outlet guide pipe 152; the left and right air outlets are communicated with the left and right inlet and outlet frames 131 on the corresponding sides; when the air outlet duct 152 is horizontally arranged to the right and the pair of left and right sealing frames 13 is closest to each other, the right end of the air outlet duct 152 is horizontally inserted into the left and right air outlets on the right side; when the outlet duct 152 is oriented horizontally to the left and the pair of left and right outlet frames 13 are closest to each other, the left end of the outlet duct 152 is horizontally inserted into the left and right outlet openings on the left side.

As shown in fig. 2, the left and right seal frames 13 are formed with left and right adjustment holes 130 in the form of long holes extending in the left-right direction; the upper end surface and the lower end surface of the central support frame 11 are respectively screwed with a pair of left and right limit bolts 132; the left and right limit bolts 132 vertically pass through the left and right adjustment holes 130 of the respective sides.

As shown in fig. 1, the front end of the center drive column 14 exceeds the front end surface of the center support frame 11 and is fixed with a driven pulley 141; a central driving motor 17 is fixed at the lower end of the front end surface of the central support frame 11; a driving pulley 171 is fixed at the front end of the output shaft of the central driving motor 17; a timing pulley 18 is provided between the driving pulley 171 and the driven pulley 141.

As shown in fig. 3, a rotation avoiding groove is formed on the rear side wall of the center support 11; a cylindrical support cylinder 112 with an open front end is formed on the rear end surface of the central support frame 11; the rear end of the central driving column 14 is pivoted on the rear side wall of the supporting cylinder 112; a pair of cylindrical connecting rods 153 which are uniformly distributed circumferentially are formed on the rear end face of the volute main body 151; the rear end of the connecting rod 153 is formed with an external gear 154; the outer gear 154 is coaxially rotatably provided on the rear sidewall of the support cylinder 112; a volute adjusting motor 16 is fixed at the upper end of the rear end face of the central support frame 11; an adjusting driving gear 161 is fixed on an output shaft of the volute adjusting motor 16; the adjustment driving gear 161 is engaged with the outer gear 154 through the sidewall of the support cylinder 112.

The impeller is a forward-inclined multi-wing impeller.

As shown in fig. 1 and 2, the left and right inlet/outlet frames 131 and the upper and lower air inlet frames 111 are formed with a plurality of connection holes for bolts to pass through; the sealing connecting plate 12 is connected with the upper air inlet frame 111 and the lower air inlet frame 111 through bolts and nuts; the sealing connecting plate 12 is formed with a mounting hole for mounting the centrifugal fan box.

The working principle of the centrifugal fan box with various combinations of air inlet and outlet directions;

through the selection of the air outlet direction and the air inlet direction of the volute casing 15, the remaining two inlets and outlets are sealed by a pair of sealing connecting plates 12, so that different installation conditions are adapted;

when the scroll casing 15 rotates, first the pair of left and right sealing frames 13 are farthest apart, so that the air outlet duct 152 is separated from the left and right air outlets of the left and right sealing frames 13, then the scroll casing 15 rotates 180 degrees, and then the pair of left and right sealing frames 13 are close to each other until the distance between the left and right sealing frames is closest, so that the air outlet duct 152 is inserted into the left and right air outlets of the other left and right sealing frames 13.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A centrifugal fan box with multiple combinations of air inlet and outlet directions comprises a box body (10); the method is characterized in that: the box body (10) comprises a rectangular frame-shaped central support frame (11) which penetrates through the center of the middle part; the upper end face and the lower end face of the central support frame (11) are respectively provided with an upper air inlet frame (111) and a lower air inlet frame (111), and the upper air inlet frame (111) and the lower air inlet frame (111) are communicated with the inside of the central support frame (11); the far end surfaces of the pair of upper and lower air inlet frames (111) are respectively detachably connected with a sealing connecting plate (12); the left end and the right end of the central support frame (11) can move left and right and are provided with a left sealing frame and a right sealing frame (13); the pair of left and right sealing frames (13) are rectangular frames with opposite openings; a pair of left and right sealing frames (13) are sleeved at the left and right ends of the central support frame (11) in the left and right directions; left and right inlet and outlet frames (131) are respectively formed on the far end surfaces of the left and right seal frames (13); the left right in-out frame (131) is positioned at the lower part; the right left in-out frame (131) is positioned at the upper part; a central driving column (14) is rotatably arranged between the front side wall and the rear side wall of the central supporting frame (11); the middle part of the central driving column (14) is fixed with an impeller; a volute (15) is rotatably arranged between the front side wall and the rear side wall of the central support frame (11); the volute (15) consists of a volute main body (151) and an air outlet guide pipe (152); the front side wall and the rear side wall of the volute main body (151) are respectively provided with an air suction opening (150); the far side walls of the left and right sealing frames (13) are respectively provided with a left and right air outlet with a rectangular hole shape matched with the air outlet guide pipe (152); the left air outlet and the right air outlet are communicated with a left inlet frame (131) and a right outlet frame (131) on the corresponding sides; when the air outlet duct (152) is horizontally arranged to the right and the pair of left and right seal frames (13) is nearest, the right end of the air outlet duct (152) is horizontally inserted into the left and right air outlets on the right side; when the air outlet duct (152) is horizontally arranged to the left and the pair of left and right seal frames (13) are nearest, the left end of the air outlet duct (152) is horizontally inserted into the left and right air outlets on the left side.

2. The centrifugal fan box of claim 1, wherein: the upper and lower side walls of the left and right sealing frames (13) are respectively formed with a left and right adjusting hole (130) which is in a long hole shape and penetrates through the left and right direction up and down; the upper end surface and the lower end surface of the central support frame (11) are respectively screwed with a pair of left and right limit bolts (132); the left and right limit bolts (132) vertically pass through the left and right adjusting holes (130) on the corresponding sides.

3. The centrifugal fan box of claim 1, wherein: the front end of the central driving column (14) exceeds the front end surface of the central support frame (11) and is fixed with a driven pulley (141); a central driving motor (17) is fixed at the lower end of the front end surface of the central support frame (11); a driving belt wheel (171) is fixed at the front end of the output shaft of the central driving motor (17); a synchronous pulley (18) is provided between the driving pulley (171) and the driven pulley (141).

4. The centrifugal fan box with multiple combinations of air inlet and outlet directions as claimed in claim 1 or 2, wherein: a rotary avoiding groove is formed on the rear side wall of the central support frame (11); a cylindrical support cylinder (112) with an opening at the front end is formed on the rear end surface of the central support frame (11); the rear end of the central driving column (14) is pivoted on the rear side wall of the supporting cylinder (112); a pair of cylindrical connecting rods (153) which are uniformly distributed on the circumference are formed on the rear end surface of the volute main body (151); an external gear (154) is molded at the rear end of the connecting rod (153); the external gear (154) is coaxially and rotatably arranged on the rear side wall of the support cylinder (112); a volute adjusting motor (16) is fixed at the upper end of the rear end face of the central support frame (11); an output shaft of the volute adjusting motor (16) is fixed with an adjusting driving gear (161); the adjustment drive gear (161) is engaged with the outer gear (154) through the side wall of the support cylinder (112).

5. The centrifugal fan box of claim 1, wherein: the impeller is a forward-inclined multi-wing impeller.

6. The centrifugal fan box of claim 1, wherein: a plurality of connecting holes for bolts to pass through are formed on the left and right inlet and outlet frames (131) and the upper and lower air inlet frames (111); the sealing connecting plate (12) is connected with the upper air inlet frame (111) and the lower air inlet frame (111) through bolts and nuts; and a mounting hole for mounting the centrifugal fan box is formed on the sealing connecting plate (12).