CN210265188U

CN210265188U - Exhaust fan

Info

Publication number: CN210265188U
Application number: CN201920794194.5U
Authority: CN
Inventors: 潘金华
Original assignee: Shanghai Huaxi Membrane Structure Engineering Co ltd
Current assignee: Shanghai Huaxi Membrane Structure Engineering Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-04-07
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses an exhaust fan, relate to an exhaust fan, the inconvenient problem of exhaust fan removal that uses in having solved current factory building, its technical scheme main points are including the bottom plate, the setting is at the axial fan of bottom plate top, the supporting mechanism of setting at the bottom plate top, four bracing pieces of threaded connection in bottom plate four corners department and set up four universal wheels near four corners department in the bottom plate bottom, the rotation support bar when using, make the bracing piece downstream on the bottom plate, thereby make universal wheel and ground break away from each other, make the exhaust fan can not appear removing when using, when needs are carried, the rotation support bar, make the bracing piece up-going, make universal wheel and ground contact each other, thereby be convenient for remove the exhaust fan.

Description

Exhaust fan

Technical Field

The utility model relates to an exhaust equipment, more specifically the saying so, it relates to an exhaust fan.

Background

The utility model provides a wall body, including the wall body, the wall body is installed to the wall body, the exhaust fan mainly used of the various places of exhaust usefulness of exhaust fan, and common exhaust fan is axial fan among the factory building, installs axial fan in the middle of the hole of airing exhaust of wall body and realizes airing exhaust, perhaps installs a support in axial fan's bottom, directly puts axial fan in the middle of the factory building for the circulation of air in the middle of the factory building.

Put the exhaust fan in the middle of the factory building, when supporting through the support, the support directly contacts with ground, need carry out the removal of position in the middle of the factory building when using, but because the weight of fan itself is great, often can have the problem of removing the difficulty when removing.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an exhaust fan, its pivoted support pole when using for the bracing piece downstream on the bottom plate, thereby make the universal wheel break away from each other with ground, make the exhaust fan can not appear removing when using, when needs are carried, pivoted support pole makes the bracing piece up-wards move, makes universal wheel and ground contact each other, thereby is convenient for remove the exhaust fan.

In order to achieve the above purpose, the utility model provides a following technical scheme: an exhaust fan comprises a bottom plate, an axial flow fan, a supporting mechanism, four supporting rods and four universal wheels, wherein the bottom plate is arranged in a rectangular shape, the axial flow fan is arranged above the bottom plate, the supporting mechanism is arranged at the top of the bottom plate and used for supporting the axial flow fan, the four supporting rods are in threaded connection with four corners of the bottom plate and penetrate through the bottom plate, and the four universal wheels are arranged at the bottom of the bottom plate and close to the four corners;

axial fan is including being the barrel of cylindric setting, fixed connection support in the middle of the barrel, rotate to connect on the support and with the coaxial pivot of barrel, fixed connection in pivot one end and around pivot evenly distributed's flabellum and fixed connection be used for driving the pivot and carry out pivoted motor on the support.

By adopting the technical scheme, when the exhaust fan is used, the supporting rod is rotated, so that the supporting rod moves downwards on the bottom plate along the vertical direction until the universal wheels are separated from the ground; when the exhaust fan needs to be moved, the supporting rods are rotated, so that the supporting rods can move upwards until the universal wheels contact the ground, and the exhaust fan is convenient and fast to move.

The utility model discloses further set up to: the top of the supporting rod is fixedly connected with a lug with a cross section in regular hexagon arrangement.

Through adopting above-mentioned technical scheme, through setting up the lug that personally submits regular hexagon to set up for the bracing piece is convenient for use the spanner to rotate the bracing piece when rotating.

The utility model discloses further set up to: the supporting mechanism comprises a fixed rod which is fixedly connected to the middle position of the top of the bottom plate and is vertically arranged in the axial direction, an adjusting rod which is arranged above the fixed rod, an adjusting sleeve which is arranged between the fixed rod and the adjusting rod and is provided with two ends respectively sleeved on the adjusting rod and the fixed rod, and a supporting assembly which is arranged at the top of the adjusting rod and is used for supporting the axial flow fan;

the adjusting sleeve is coaxial with the adjusting rod and the fixed rod, external threads are arranged on the peripheries of the adjusting rod and the fixed rod, the spiral directions of the external threads on the adjusting rod and the fixed rod are opposite, two sections of internal threads are arranged on the inner side of the adjusting sleeve, one section of internal thread on the top is matched with the external threads on the adjusting rod, and one section of internal thread on the bottom is matched with the external threads on the fixed rod.

Through adopting above-mentioned technical scheme, will adjust the pole fixed, rotate the adjusting collar, can adjust the height of adjusting the pole to the realization is to the regulation of exhaust fan height.

The utility model discloses further set up to: the periphery of the cross section of the adjusting sleeve is arranged in a regular hexagon shape.

Through adopting above-mentioned technical scheme, set the periphery of adjusting collar cross section to regular hexagon, use the spanner to rotate adjusting collar in the middle of the process of being convenient for adjust.

The utility model discloses further set up to: the supporting assembly comprises a cross rod and vertical rods, the cross rod is fixedly connected to the top of the adjusting rod and horizontally arranged, the vertical rods are fixedly connected to two vertical ends of the cross rod, the vertical rods are fixedly connected with the barrel, and the length direction of the vertical rods is perpendicular to the axis direction of the barrel.

The utility model discloses further set up to: the two sides of the barrel, which are close to the vertical rod, are fixedly connected with a rotating shaft which penetrates through the vertical rod and is rotatably connected with the vertical rod, one side of the vertical rod is in threaded connection with a fastening bolt, and one end of the fastening bolt penetrates through the vertical rod and abuts against the periphery of the rotating shaft.

Through adopting above-mentioned technical scheme, unscrew fastening bolt, can rotate the axis of rotation to can adjust axial fan's the direction of blowing, adjust to suitable orientation after, screw up fastening bolt, fix axial fan.

The utility model discloses further set up to: two limiting plates are fixedly connected to the rotating shaft, and the two limiting plates are in mutual contact with one sides, close to and far away from the barrel, of the vertical rods respectively.

Through adopting above-mentioned technical scheme, through setting up the limiting plate, can carry on spacingly to the axis of rotation, prevent that the rotor plate from breaking away from the montant.

The utility model discloses further set up to: and the inner wall of the barrel is fixedly connected with filter screens close to two ends of the barrel.

Through adopting above-mentioned technical scheme, through setting up the filter screen, can prevent that bold impurity from entering into the barrel in the middle of causing the damage to flabellum, pivot and motor.

To sum up, the utility model discloses compare and have following beneficial effect in prior art:

1. the utility model is provided with the support rod and the universal wheel, when the exhaust fan is used, the support rod is rotated, so that the support rod moves downwards on the bottom plate along the vertical direction until the universal wheel is mutually separated from the ground; when the exhaust fan needs to be moved, the supporting rod is rotated to enable the supporting rod to move upwards until the universal wheels are contacted with the ground, so that the exhaust fan is more convenient and quicker to move;

2. the utility model discloses a setting up regulation pole, dead lever and adjusting collar, it is fixed to adjust the pole, rotates the adjusting collar, can highly adjust the adjusting lever to the realization is to the regulation of exhaust fan height.

Drawings

FIG. 1 is an isometric view of the complete structure of the embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a sectional view of an axial flow fan of an embodiment;

FIG. 4 is a cross-sectional view of an adjustment rod, a fixation rod and an adjustment sleeve of an embodiment;

fig. 5 is a cross-sectional view of a support assembly of an embodiment.

In the figure: 1. a base plate; 11. a universal wheel; 2. a support mechanism; 21. an adjusting sleeve; 22. fixing the rod; 23. adjusting a rod; 24. a support assembly; 241. a cross bar; 242. a vertical rod; 25. a rotating shaft; 251. a limiting plate; 26. fastening a bolt; 3. an axial flow fan; 31. a barrel; 32. a support; 33. a rotating shaft; 34. a fan blade; 35. a motor; 36. a filter screen; 4. a support bar; 41. and (4) a bump.

Detailed Description

Example (b): an exhaust fan, see attached fig. 1 and 2, comprises a bottom plate 1 arranged in a rectangular shape, an axial flow fan 3 arranged above the bottom plate 1, a supporting mechanism 2 arranged at the top of the bottom plate 1 and used for supporting the axial flow fan 3, four supporting rods 4 in threaded connection with four corners of the bottom plate 1 and penetrating through the bottom plate 1, four universal wheels 11 arranged at the bottom of the bottom plate 1 and close to the four corners, and four convex blocks 41 fixedly connected to the middle positions of the tops of the supporting rods 4 and provided with regular hexagon cross sections; when the exhaust fan needs fixing work, through spanner centre gripping lug 41, then rotate bracing piece 4 through rotating lug 41 for bracing piece 4 downstream on bottom plate 1, and the support through bracing piece 4 makes the bottom of universal wheel 11 break away from each other with ground, thereby makes the support that the exhaust fan can be stable subaerial. When the exhaust fan needs to be moved, the supporting rod 4 is rotated, so that the supporting rod 4 moves upwards on the bottom plate 1 until the universal wheels 11 contact with the ground, and then the exhaust fan is pushed to move.

Referring to fig. 3, the axial flow fan 3 includes a cylindrical body 31, a support 32 fixedly connected to the cylindrical body 31, a rotating shaft 33 rotatably connected to the support 32 and coaxial with the cylindrical body 31, fan blades 34 fixedly connected to one end of the rotating shaft 33 and uniformly distributed around the rotating shaft 33, a motor 35 fixedly connected to the support 32 for driving the rotating shaft 33 to rotate, and two filter screens 36 fixedly connected to the inner wall of the cylindrical body 31 near the two ends of the cylindrical body 31. The motor 35 drives the fan blades 34 to rotate through the rotating shaft 33, the fan blades 34 drive air to flow in the rotating process, and the influence on the normal work of the fan blades 34 and the motor 35 caused by massive impurities can be prevented by arranging the filter screen 36.

Referring to fig. 1 and 4, the supporting mechanism 2 includes a fixing rod 22 fixedly connected to the middle position of the top of the bottom plate 1 and vertically arranged in the axial direction, an adjusting rod 23 arranged above the fixing rod 22, an adjusting sleeve 21 arranged between the fixing rod 22 and the adjusting rod 23 and having two ends respectively sleeved on the adjusting rod 23 and the fixing rod 22, and a supporting assembly 24 arranged at the top of the adjusting rod 23 and used for supporting the axial flow fan 3; the supporting component 24 includes a cross bar 241 fixedly connected to the top of the adjusting bar 23 and horizontally disposed and two vertical bars 242 fixedly connected to two ends of the cross bar 241, the length direction of the vertical bars 242 is perpendicular to the axial direction of the cylinder 31, and two rotation shafts 25 are fixedly connected to two sides of the cylinder 31, respectively penetrate through the two vertical bars 242 and are respectively rotatably connected to the two vertical bars 242. A fastening bolt 26 is threadedly coupled to one side of the stem 242, and the end of the fastening bolt 26 passes through the stem 242 to contact the outer circumference of the rotating shaft 25. The barrel 31 can be rotated by loosening the fastening bolt 26, and the barrel 31 can be fixed by tightening the fastening bolt 26. The adjusting sleeve 21 is coaxial with the adjusting rod 23 and the fixed rod 22, external threads are arranged on the peripheries of the adjusting rod 23 and the fixed rod 22, the spiral directions of the external threads on the adjusting rod 23 and the fixed rod 22 are opposite, two sections of internal threads are arranged on the inner side of the adjusting sleeve 21, the internal thread on one section of the top is matched with the external thread on the adjusting rod 23, and the internal thread on one section of the bottom is matched with the external thread on the fixed rod 22; the periphery of the cross section of the adjusting sleeve 21 is in a regular hexagon shape, the adjusting rod 23 is fixed, and then the adjusting sleeve 21 is rotated by a wrench, so that the lifting of the axial flow fan 3 is adjusted.

Referring to fig. 5, two limiting plates 251 are fixedly connected to the rotating shaft 25, the two limiting plates 251 are respectively in contact with the side of the vertical rod 242 close to and far from the cylinder 31, and the rotating shaft 25 is not easily separated from the vertical rod 242 by the limiting action of the limiting plates 251.

The working principle of the exhaust fan when in use is as follows: when the exhaust fan needs fixing work, through spanner centre gripping lug 41, then rotate bracing piece 4 through rotating lug 41 for bracing piece 4 downstream on bottom plate 1, and the support through bracing piece 4 makes the bottom of universal wheel 11 break away from each other with ground, thereby makes the support that the exhaust fan can be stable subaerial. When the exhaust fan needs to be moved, the supporting rod 4 is rotated, so that the supporting rod 4 moves upwards on the bottom plate 1 until the universal wheels 11 contact with the ground, and then the exhaust fan is pushed to move.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An exhaust fan, characterized in that: the device comprises a rectangular bottom plate (1), an axial flow fan (3) arranged above the bottom plate (1), a supporting mechanism (2) arranged at the top of the bottom plate (1) and used for supporting the axial flow fan (3), four supporting rods (4) which are in threaded connection with four corners of the bottom plate (1) and penetrate through the bottom plate (1), and four universal wheels (11) arranged at the bottom of the bottom plate (1) and close to the four corners;

axial fan (3) including being cylinder setting's barrel (31), support (32) in the middle of fixed connection barrel (31), rotate to connect on support (32) and with barrel (31) coaxial pivot (33), fixed connection is in pivot (33) one end and around pivot (33) evenly distributed's flabellum (34) and fixed connection be used for driving pivot (33) to carry out pivoted motor (35) on support (32).

2. An exhaust fan in accordance with claim 1, wherein: the top of the supporting rod (4) is fixedly connected with a convex block (41) with a cross section in a regular hexagon shape.

3. An exhaust fan in accordance with claim 1, wherein: the supporting mechanism (2) comprises a fixed rod (22) which is fixedly connected to the middle position of the top of the bottom plate (1) and is vertically arranged in the axial direction, an adjusting rod (23) arranged above the fixed rod (22), an adjusting sleeve (21) which is arranged between the fixed rod (22) and the adjusting rod (23) and is respectively sleeved on the adjusting rod (23) and the fixed rod (22) at two ends, and a supporting assembly (24) which is arranged at the top of the adjusting rod (23) and is used for supporting the axial flow fan (3);

adjusting collar (21) and adjusting pole (23) and dead lever (22) are coaxial, all be provided with the external screw thread and adjust the screw direction of the external screw thread on pole (23) and dead lever (22) on the periphery of adjusting pole (23) and dead lever (22) opposite, two sections internal threads have been seted up to adjusting collar (21) inboard, the internal thread of one section in top is mutually supported with the external screw thread on adjusting pole (23), the internal thread of one section in bottom is mutually supported with the external screw thread on dead lever (22).

4. A fan in accordance with claim 3, wherein: the periphery of the cross section of the adjusting sleeve (21) is arranged in a regular hexagon shape.

5. A fan in accordance with claim 3, wherein: the supporting component (24) comprises a cross rod (241) which is fixedly connected to the top of the adjusting rod (23) and horizontally arranged and vertical rods (242) which are fixedly connected to two vertical ends of the cross rod (241), the vertical rods (242) are fixedly connected with the barrel body (31), and the length direction of the vertical rods (242) is perpendicular to the axis direction of the barrel body (31).

6. An exhaust fan in accordance with claim 5, wherein: the two sides of the barrel (31) close to the vertical rod (242) are fixedly connected with a rotating shaft (25) which penetrates through the vertical rod (242) and is rotatably connected with the vertical rod (242), one side of the vertical rod (242) is in threaded connection with a fastening bolt (26), and one end of the fastening bolt (26) penetrates through the vertical rod (242) and abuts against the periphery of the rotating shaft (25).

7. An exhaust fan in accordance with claim 6, wherein: the rotating shaft (25) is fixedly connected with two limiting plates (251), and the two limiting plates (251) are respectively contacted with one sides of the vertical rods (242) close to and far away from the cylinder body (31).

8. An exhaust fan in accordance with claim 1, wherein: the inner wall of the cylinder body (31) is fixedly connected with filter screens (36) close to the two ends of the cylinder body (31).