CN211144856U - Box type fan with adjustable height - Google Patents

Box type fan with adjustable height Download PDF

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Publication number
CN211144856U
CN211144856U CN201921458717.5U CN201921458717U CN211144856U CN 211144856 U CN211144856 U CN 211144856U CN 201921458717 U CN201921458717 U CN 201921458717U CN 211144856 U CN211144856 U CN 211144856U
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Prior art keywords
screw rod
base
fan
fixing plate
box
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CN201921458717.5U
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Chinese (zh)
Inventor
沈余良
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Shanghai De Hui Specific Fan Co ltd
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Shanghai De Hui Specific Fan Co ltd
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Priority to CN201921458717.5U priority Critical patent/CN211144856U/en
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Abstract

The utility model relates to a but height-adjusting's box fan, including fan body and elevating gear. The lifting device comprises a base, a power device arranged on the base, and a first screw rod and a second screw rod which are perpendicular to the base. The power device is connected with the first screw rod and the second screw rod in a driving mode, a first nut seat is sleeved on the first screw rod, a second nut seat is sleeved on the second screw rod, and the fan body is fixedly connected with the first nut seat and the second nut seat. The base is provided with a first fixing plate, the free end of the first screw rod is provided with a first bearing seat, and the first bearing seat is fixed on the first fixing plate. The base is further provided with a second fixing plate, a second bearing seat is arranged at the free end of the second lead screw, and the second bearing seat is fixed on the second fixing plate.

Description

Box type fan with adjustable height
Technical Field
The utility model relates to a fan technical field especially relates to a but height-adjusting's box fan.
Background
With the development of science and technology and the improvement of productivity level, fans have been widely applied to dust removal, air exhaust and cooling in the fields of factories, tunnels, mines, ships, vehicles and the like. The application scene of fan is extensive, and work efficiency is high. For example, the just harvested grains can be dried by using a fan, and the shrunken empty shell particles in the grains can be removed by using the fan, so that the operation is simple and the feasibility is strong.
In prior art, the regulation of fan unable realization height, when the fan was applied to higher position scene, the staff can utilize more common article such as stool to fix the fan for the fan can be applied to required high position. However, the fan is easy to be separated from the stool due to vibration in the operation process, and the fan falls down on the ground, so that the fan is damaged, and the working efficiency is further influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a but height-adjusting's box fan. Comprises a fan body and a lifting device. The lifting device comprises a base, a power device arranged on the base, and a first screw rod and a second screw rod which are perpendicular to the base, the power device is connected with the first screw rod and the second screw rod in a driving mode, a first nut seat in threaded fit with the first screw rod is sleeved on the first screw rod, a second nut seat in threaded fit with the second screw rod is sleeved on the second screw rod, and the fan body is fixedly connected with the first nut seat and the second nut seat;
the base is provided with a first fixing plate which is perpendicular to the base and adjacent to the first screw rod, the free end of the first screw rod is provided with a first bearing seat, and the first bearing seat is fixed on the first fixing plate; the base is further provided with a second fixing plate which is perpendicular to the base and adjacent to the second lead screw, a second bearing seat is arranged at the free end of the second lead screw, and the second bearing seat is fixed on the second fixing plate.
Optionally, the power device includes a first motor connected to the first lead screw and driving the first lead screw to rotate, and a second motor connected to the second lead screw and driving the second lead screw to rotate.
Optionally, the power device comprises a third motor, the third motor is connected to a rack in a driving manner, a first gear is connected to the bottom end of the first screw rod, and the first gear is meshed with the rack; the bottom end of the second screw rod is connected with a second gear, and the second gear is meshed with the rack.
Optionally, the fan body comprises a box body and an air draft assembly arranged in the box body; the air inlet and the air outlet are formed in the box body, and a cover plate covering the box body is further installed on the upper end face of the box body so that a containing space is formed inside the box body.
Optionally, the air draft assembly comprises a fourth motor installed in the box body, a rotating shaft rotatably connected to the fourth motor, and an impeller installed at the free end of the rotating shaft; wherein, the free end of the rotating shaft extends towards the air outlet direction.
Optionally, the impeller includes a wheel disc sleeved at the free end of the rotating shaft and at least two blades arranged at intervals along the circumferential side of the wheel disc.
Optionally, the air inlet is provided with a protective cover.
Optionally, a reinforcing rib is installed at a joint of the base and the first fixing plate, and the reinforcing rib is also installed at a joint of the base and the second fixing plate.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
the embodiment of the utility model provides a but height-adjusting's box fan, fan body fixed connection are in first nut seat and second nut seat. And the first nut seat is rotationally connected to the first lead screw, and the second nut seat is rotationally connected to the second lead screw. The first screw rod and the second screw rod are driven to rotate through the power device, so that the first nut seat and the second nut seat drive the fan body to move up and down relative to the lifting device.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a height-adjustable box type fan according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the adjustable height box blower of FIG. 1 taken along direction A-A;
fig. 3 is a schematic view of a front view of a height-adjustable box type fan according to another embodiment of the present invention;
fig. 4 is a schematic view of a front view of a height-adjustable box type fan according to another embodiment of the present invention;
fig. 5 is a schematic view of an internal structure of a blower body of the height-adjustable box type blower shown in fig. 1.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims does not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Fig. 1 is a schematic structural diagram of a box type fan with adjustable height according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the adjustable height box blower of FIG. 1 taken along the direction A-A. Fig. 3 is a schematic view of a main view direction of a height-adjustable box type fan according to another embodiment of the present invention. Fig. 4 is a schematic view of a front view direction of a height-adjustable box type fan according to another embodiment of the present invention. Fig. 5 is a schematic view of an internal structure of a blower body of the height-adjustable box type blower shown in fig. 1.
Referring to fig. 1 and 2, an embodiment of the present invention provides a height-adjustable box fan, which includes a fan body 2 and a lifting device 1. The lifting device 1 comprises a base 11, a power device arranged on the base 11, and a first screw rod 14 and a second screw rod 15 which are perpendicular to the base 11. The power device is connected with the first screw rod 14 and the second screw rod 15 in a driving way. The first screw mandrel 14 is sleeved with a first nut seat 16 in threaded fit with the first screw mandrel, the second screw mandrel 15 is sleeved with a second nut seat 17 in threaded fit with the second screw mandrel, and the fan body 2 is fixedly connected to the first nut seat 16 and the second nut seat 17. The base 11 is provided with a first fixing plate 18 perpendicular to the base 11 and adjacent to the first lead screw 14, a first bearing seat 181 is provided at a free end of the first lead screw 14, and the first bearing seat 181 is fixed on the first fixing plate 18. The base 11 is further provided with a second fixing plate 19 perpendicular to the base 11 and adjacent to the second lead screw 15, a second bearing seat 191 is arranged at the free end of the second lead screw 15, and the second bearing seat 191 is fixed on the second fixing plate 19.
The embodiment of the utility model provides a but height-adjusting's box fan, 2 fixed connection of fan body are in first nut seat 16 and second nut seat 17. And the first nut holder 16 is rotatably coupled to the first lead screw 14 and the second nut holder 17 is rotatably coupled to the second lead screw 15. The first screw mandrel 14 and the second screw mandrel 15 are driven to rotate by the power device, so that the first nut seat 16 and the second nut seat 17 drive the fan body 2 to move up and down relative to the lifting device 1.
In an embodiment of the present invention, referring to fig. 2, the power device includes a first motor 12 connected to the first lead screw 14 and driving the first lead screw 14 to rotate, and a second motor 13 connected to the second lead screw 15 and driving the second lead screw 15 to rotate. The first motor 12 and the second motor 13 may be symmetrically installed at both sides of the base 11 by screws. Of course, the first motor 12 and the second motor 13 may be mounted on the base 11 by other connection methods, which is not limited to this.
In another embodiment of the present invention, referring to fig. 4, the power device includes a third motor 41, the third motor 41 is drivingly connected to a rack 42, a first gear 43 is connected to the bottom end of the first lead screw 14, and the first gear 43 is engaged with the rack 42. The bottom end of the second lead screw 15 is connected with a second gear 44, and the second gear 44 is meshed with the rack 42. The first lead screw 14 and the second lead screw 15 are symmetrically installed at both sides of the base 11. The rack 42 is engaged with the first gear 43 of the first lead screw 14 and the second gear 44 of the second lead screw 15, and the third motor 41 is connected to the rack 42 in a driving manner to drive the rack 42 to move back and forth, so that the rack 42 drives the first gear 43 and the second gear 44 to rotate, the first gear 43 further drives the first lead screw 14 to rotate, and meanwhile, the second gear 44 further drives the second lead screw 15 to rotate. The third motor 41 may be fixedly mounted to the upper end surface of the base 11 by screws and biased toward one side of the base 11. Of course, the third motor 41 may be mounted at other positions of the base 11, and is not limited thereto.
Referring to fig. 2 and 3, a first nut seat 16 in threaded fit with the first lead screw 14 is sleeved on the first lead screw, and a second nut seat 17 in threaded fit with the second lead screw 15 is sleeved on the second lead screw. And the blower body 2 is fixedly connected to the first nut holder 16 and the second nut holder 17. In an embodiment of the present invention, the box body 21 of the blower body 2 is a hollow square structure, and the middle position of the outer wall of one of the two opposite side plates of the box body 21 is provided with a first connecting groove 214 for the first nut seat 16 to connect, the middle position of the outer wall of the other side plate is provided with a second connecting groove 215 for the second nut seat 17 to connect, and the first connecting groove 214 and the second connecting groove 215 are disposed oppositely. The power device drives the first screw rod 14 and the second screw rod 15 to rotate, the first nut seat 16 is fixedly connected with the fan body 2 through the first connecting groove 214, and the second nut seat 17 is fixedly connected with the fan body 2 through the second connecting groove 215, so that the fan body 2 can move up and down relative to the first screw rod 14 and the second screw rod 15 under the driving of the power device. The first nut holder 16 may be attached to the first coupling groove 214 by welding or screwing, and the second nut holder 17 may be attached to the second coupling groove 215 by welding or screwing, but not limited thereto.
Referring to fig. 1 to 3, a first fixing plate 18 perpendicular to the base 11 is installed on the side of the base 11 adjacent to the first lead screw 14. The side of the base 11 adjacent to the second screw 15 is provided with a second fixing plate 19 perpendicular to the base 11. In an embodiment of the present invention, a first bearing seat 181 is fixedly installed on the first fixing plate 18 corresponding to the free end of the first lead screw 14, and the first bearing seat 181 is sleeved on the free end of the first lead screw 14. The arrangement can enable the first screw rod 14 to be rotatably fixed on the first fixing plate 18, and the first screw rod 14 is prevented from shaking and the like in the operation process. The second fixing plate 19 is fixedly provided with a second bearing seat 191 corresponding to the free end of the second screw rod 15, and the second bearing seat 191 is sleeved on the free end of the second screw rod 15, so that the second screw rod 15 can be rotatably fixed on the second fixing plate 19, and the second screw rod 15 is prevented from shaking in the operation process.
The reinforcing ribs 3 are installed at the joints of the base 11 and the first fixing plate 18, and the reinforcing ribs 3 are also installed at the joints of the base 11 and the second fixing plate 19. In an embodiment of the present invention, referring to fig. 1 to 3, the reinforcing ribs 3 are respectively added at two sides of the first fixing plate 18 connected to the base 11, and the reinforcing ribs 3 are respectively added at two sides of the second fixing plate 19 connected to the base 11, so as to increase the space of the base 11 for installing the power device, and further enhance the stability of the connection between the first fixing plate 18 and the base 11 and the stability of the connection between the second fixing plate 19 and the base 11 by adding the reinforcing ribs 3. The probability that the first fixing plate 18 and/or the second fixing plate 19 incline or fall off from the base 11 in the operation process is effectively reduced.
The fan body 2 comprises a box body 21 and an air draft assembly 22 installed in the box body 21. The box 21 has an air outlet 212 and an air inlet 213. The upper end surface of the case 21 is further provided with a cover 211 covering the case 21 to form a receiving space inside the case 21. In an embodiment of the present invention, referring to fig. 1 to 4, the cover plate 211 may be mounted on the upper end surface of the box 21 by means of a snap-fit or a screw fixation. The air outlet 212 is disposed on a side plate of the box 21 adjacent to the side plate where the second connecting groove 215 is located, and the air inlet 213 is disposed on another side plate opposite to the side plate where the air outlet 212 is located. The air inlet 213 is disposed opposite to the air outlet 212. Of course, in other embodiments, the air inlet 213 may also be opened on the cover 211, and is not limited thereto.
The air draft assembly 22 includes a fourth motor 221 installed in the case 21, a rotating shaft 222 rotatably connected to the fourth motor 221, and an impeller 223 installed at a free end of the rotating shaft 222. The free end of the shaft 222 extends toward the air outlet 212. Referring to fig. 5, the impeller 223 is opposite to the air outlet 212 and is adjacent to the air outlet 212, and the fourth motor 221 is directly used to drive the impeller 223 to rotate so as to draw the external air from the air inlet 213 into the interior of the box 21.
The impeller 223 includes a wheel disc 2231 sleeved at the free end of the rotating shaft 222 and at least two blades 2232 arranged along the circumferential side of the wheel disc 2231 at intervals. In an embodiment of the present invention, the inner wall of the wheel disc 2231 is provided with an internal thread, the free end of the rotating shaft 222 is provided with an external thread, and the wheel disc 2231 is screwed into the free end of the rotating shaft 222. To further strengthen the connection between the fixed disk 2231 and the rotating shaft 222, a bolt or screw may be added between the disk 2231 and the rotating shaft 222 to strengthen the fixation. Of course, the wheel disc 2231 and the rotating shaft 222 may be fixed by welding, but not limited thereto. The number of the blades 2232 of the present invention is four, and of course, in other embodiments, the number of the blades 2232 may be six, eight, or any desired number.
In one embodiment of the present invention, the air inlet 213 may further be installed with a protective cover (not shown). Through addding the protection casing on the one hand can prevent in the operation process, the staff mistake stretches into air intake 213 with the finger to the impeller 223 that the touching is rotating, in order to cause unnecessary injury. On the other hand, it can also effectively prevent the larger impurities in the air, such as cotton wool, leaves, etc., from entering the box 21 from the air inlet 213.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (7)

1. A height-adjustable box type fan comprises a fan body and a lifting device and is characterized in that,
the lifting device comprises a base, a power device arranged on the base, and a first screw rod and a second screw rod which are perpendicular to the base, the power device is connected with the first screw rod and the second screw rod in a driving mode, a first nut seat in threaded fit with the first screw rod is sleeved on the first screw rod, a second nut seat in threaded fit with the second screw rod is sleeved on the second screw rod, and the fan body is fixedly connected with the first nut seat and the second nut seat;
the base is provided with a first fixing plate which is perpendicular to the base and adjacent to the first screw rod, the free end of the first screw rod is provided with a first bearing seat, and the first bearing seat is fixed on the first fixing plate; the base is further provided with a second fixing plate which is perpendicular to the base and adjacent to the second lead screw, a second bearing seat is arranged at the free end of the second lead screw, and the second bearing seat is fixed on the second fixing plate.
2. The adjustable height box fan as recited in claim 1, wherein the power means comprises a first motor connected to the first lead screw and driving the first lead screw to rotate, and a second motor connected to the second lead screw and driving the second lead screw to rotate.
3. The height-adjustable box fan as claimed in claim 1, wherein the fan body comprises a box body and an air draft assembly mounted in the box body; the air inlet and the air outlet are formed in the box body, and a cover plate covering the box body is further installed on the upper end face of the box body so that a containing space is formed inside the box body.
4. The height-adjustable box type fan according to claim 3, wherein the air draft assembly comprises a fourth motor installed in the box body, a rotating shaft rotatably connected to the fourth motor, and an impeller installed at the free end of the rotating shaft; wherein, the free end of the rotating shaft extends towards the air outlet direction.
5. The adjustable height box fan as recited in claim 4, wherein the impeller comprises a wheel disk sleeved on the free end of the shaft and at least two blades spaced along a circumferential side of the wheel disk.
6. The adjustable height box blower of claim 4, wherein the inlet is fitted with a shield.
7. The height-adjustable box fan as claimed in claim 1, wherein a reinforcing rib is installed at a joint of the base and the first fixing plate, and the reinforcing rib is also installed at a joint of the base and the second fixing plate.
CN201921458717.5U 2019-09-04 2019-09-04 Box type fan with adjustable height Active CN211144856U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921458717.5U CN211144856U (en) 2019-09-04 2019-09-04 Box type fan with adjustable height

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921458717.5U CN211144856U (en) 2019-09-04 2019-09-04 Box type fan with adjustable height

Publications (1)

Publication Number Publication Date
CN211144856U true CN211144856U (en) 2020-07-31

Family

ID=71758854

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921458717.5U Active CN211144856U (en) 2019-09-04 2019-09-04 Box type fan with adjustable height

Country Status (1)

Country Link
CN (1) CN211144856U (en)

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