CN212225600U - Technology air exhaust fan with 180-degree switchable air outlet direction - Google Patents
Technology air exhaust fan with 180-degree switchable air outlet direction Download PDFInfo
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- CN212225600U CN212225600U CN202020645339.8U CN202020645339U CN212225600U CN 212225600 U CN212225600 U CN 212225600U CN 202020645339 U CN202020645339 U CN 202020645339U CN 212225600 U CN212225600 U CN 212225600U
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Abstract
The utility model relates to a process exhaust fan with 180-degree convertible air outlet direction, which comprises a casing, a bracket, a motor, an impeller and an air inlet; the support is of an L-shaped structure and comprises a lower bottom plate and a vertical mounting plate; the lower part of the vertical mounting plate is provided with a mounting plate through hole, and the lower part of the vertical mounting plate penetrates through the vertical mounting plate and is connected with the lower bottom plate; the vertical mounting plate is provided with a casing fixing hole, and two sides of the vertical mounting plate are provided with symmetrical side wing plates; the machine shell is provided with an air outlet, the rear side plate is provided with machine shell mounting holes matched with the machine shell fixing holes in the vertical mounting plate, and two groups of machine shell mounting holes are symmetrically arranged along the horizontal center line of the rear side plate; the air inlet is fixedly welded on the front side plate of the shell, the middle part of the air inlet is fixed on the front side plate of the shell, and one end of the air inlet, which is close to the impeller, is provided with a step part; an air inlet ring is arranged at the position of the front disk of the impeller, which is close to the air inlet, the shape of the air inlet ring is matched with that of the step part, and the air inlet ring is arranged outside the step part; and a sealing element is arranged in the air inlet ring.
Description
Technical Field
The utility model relates to a ventilation unit or system field, especially a technology fan of airing exhaust of convertible 180 degrees of air outlet direction.
Background
In the workshop design of textile production enterprises, a large number of air-conditioning workshops are involved, various textile production devices are installed in the air-conditioning workshops, and process air exhaust fans are installed on the related textile production devices to suck cotton for yarn breakage and the like in the production process and then discharge the cotton through corresponding pipelines; in the design process of the process exhaust fan, the air inlet and the air outlet of the process exhaust fan are generally set in consideration of the design of an exhaust pipeline of textile production equipment and the design of an exhaust pipeline of an air conditioning workshop; however, in the actual construction process of the air-conditioning workshop, sometimes the process exhaust pipeline is changed according to other conditions, a fan production enterprise with changed conditions is not informed, the fan produced according to the original design is difficult to install due to the change of the position of the air outlet after being shipped to the site, the fan is difficult to modify on the site, the pipeline modification is inconvenient, and the installation and debugging of the air-conditioning workshop are delayed.
Because the technology is aired exhaust the fan and is adopted centrifugal fan in a large number, centrifugal fan's spiral case and support are all fixed together, and the fan of conventional structure is like chinese utility model: a centrifugal fan (No. CN209294142U) with an independent volute tongue comprises a volute, an air inlet, an air outlet, an impeller and a motor, wherein the volute comprises a volute plate and a side plate, and the centrifugal fan also comprises an independent volute tongue, the volute tongue is provided with an arc-shaped surface matched with an extension line of a spiral line of the volute plate, two mounting plates are further arranged on two sides of the arc-shaped surface of the volute tongue, mounting holes are formed in the mounting plates, the volute tongue is fixed on the side plate through bolts and nuts, and the nuts are welded on the inner side of the mounting holes; a rotating shaft arranged in the volute tongue penetrates through the shaft hole to fix the volute tongue on the side plate, the volute tongue is hollow, and a handle is arranged in the volute tongue; the air outlet is fixed to be set up on the upper portion of spiral case, if the air outlet pipeline sets up when the lower part, can only carry out the pipeline and reform transform, if reform transform the space not enough, probably still need to change the fan, brought a great deal of inconvenience for enterprise's production.
In order to solve the problem of pipeline connection, some enterprises have already made certain attempts, such as chinese utility model: the fan (authorized bulletin No. CN206522262U) with the air outlet direction capable of being adjusted in a 360-degree rotating mode discloses a technical scheme, the fan comprises an air outlet base and a filter screen, a counter bore is formed in a steering wheel base, the steering wheel base is connected with a steering wheel rotating disc through a connecting sleeve and a bearing, a handle is arranged on the steering wheel rotating disc, the steering wheel rotating disc is connected with the air outlet base, an air outlet is connected with the air outlet base, the filter screen is arranged in an inner cavity of the steering wheel base, a bolt insertion hole is further formed in the top end of the steering wheel base, and the fan is connected with the bottom end face of the steering wheel base; a simple turret structure is designed through a bearing and a connecting sleeve, so that the air outlet or the air inlet can rotate by three hundred sixty degrees, but the turret of the structure is not well controlled when the angle is adjusted, the position of the air inlet or the air outlet is difficult to lock after the angle is adjusted, and a lot of inconvenience is caused during use.
Therefore, further improvements to process exhaust fans are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a technology of convertible 180 degrees of air outlet direction fan of airing exhaust.
In order to achieve the purpose of the utility model, the technical exhaust fan with 180-degree convertible air outlet direction is provided, which comprises a casing, a bracket, a motor, an impeller and an air inlet;
the support is of an L-shaped structure and comprises a lower bottom plate and a vertical mounting plate, the lower bottom plate is a flat thin plate, a plurality of mounting holes and fixing holes are formed in the lower bottom plate, and the motor is horizontally mounted on the lower bottom plate through the mounting holes; the lower part of the vertical mounting plate is provided with a mounting plate through hole, and the lower part of the mounting plate through hole penetrates through the vertical mounting plate and is connected with the lower bottom plate; the vertical mounting plate is provided with a casing fixing hole which is symmetrically arranged along the vertical central line of the vertical mounting plate; the two sides of the vertical mounting plate are provided with symmetrical side wing plates, the side wing plates are trapezoidal thin plates, the upper bottoms of the side wing plates are shorter, and a fixed connecting plate is arranged between the upper bottoms of the side wing plates on the two sides;
the casing is a conventional spiral volute, an air outlet is formed in the casing, an air inlet mounting hole is formed in the front side plate of the casing, a motor mounting hole is formed in the rear side plate of the casing, casing mounting holes matched with the casing fixing holes in the vertical mounting plate are further formed in the rear side plate, and two groups of casing mounting holes are symmetrically formed along the horizontal center line of the rear side plate;
an air inlet is arranged in an air inlet mounting hole of the front side plate of the shell, the air inlet is fixedly welded on the front side plate of the shell, the air inlet is cylindrical, the middle part of the air inlet is fixed on the front side plate of the shell, and one end of the air inlet, which is close to the impeller, is provided with a step part;
the impeller comprises a hub, a front disk, a rear disk and blades, wherein an air inlet ring is arranged at the position, close to an air inlet, of the front disk, the air inlet ring is fixedly welded on the front disk, is in a circular ring shape, is matched with the shape of the step part, is arranged outside the step part, and the inner diameter of the air inlet ring is not more than the outer diameter of the air inlet and is more than the outer diameter of the step part; and a sealing piece is arranged in the air inlet ring, and the inner diameter of the sealing piece is larger than the outer diameter of the step part.
Further, the seal is a labyrinth seal.
Furthermore, the middle part of the connecting plate is provided with a lifting plate for lifting the fan after the support and the assembly are finished.
Furthermore, lightening holes are formed in the side wing plates, and the side wing plates can be used for lifting under necessary conditions.
Furthermore, a maintenance window is arranged on the casing.
The utility model relates to a convertible 180 degrees technology of air outlet direction fan of airing exhaust compares with prior art and has following advantage:
(1) the air outlet direction of the fan can be upward or downward, and if the air outlet direction when leaving the factory is inconsistent with the installation site, the on-site adjustment can be carried out, the air outlet direction can be converted, and the pipeline modification cost and modification time can be reduced;
(2) the sealing degree between the air inlet and the impeller front disc is good, the air quantity leakage amount is small, the fan can be guaranteed to maintain higher air quantity and air pressure, and the efficiency is high.
Drawings
Fig. 1 is a front view of a technical exhaust fan with 180-degree convertible air outlet direction according to the present invention;
fig. 2 is a side view of the technical air exhaust fan with 180-degree convertible air outlet direction of the utility model;
fig. 3 is a partial enlarged view of a part a of a process exhaust fan a of the utility model with 180-degree convertible air outlet direction;
fig. 4 is a schematic structural view of a technical exhaust fan casing with 180-degree convertible air outlet direction according to the present invention;
fig. 5 is a front view of a technical exhaust fan rack with 180-degree convertible air outlet direction according to the present invention;
fig. 6 is a side view of the air outlet direction of the utility model, which can be changed by 180 degrees.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-6, the utility model relates to a process exhaust fan with 180-degree convertible air outlet direction, which comprises a casing 1, a bracket 2, a motor 3, an impeller 4 and an air inlet 5;
the support 2 is of an L-shaped structure and comprises a lower bottom plate 21 and a vertical mounting plate 22, the lower bottom plate 21 is a flat thin plate, a plurality of mounting holes and fixing holes are formed in the flat thin plate, the motor 3 is horizontally mounted on the lower bottom plate 21 through the mounting holes, and the fixing holes are used for fixing the support 2; the lower part of the vertical mounting plate 22 is provided with a mounting plate through hole 221, and the lower part of the mounting plate through hole 221 penetrates through the vertical mounting plate 22 and is connected with the lower bottom plate 21; the vertical mounting plate 22 is further provided with a casing fixing hole, and generally, the casing fixing holes are symmetrically arranged along a vertical central line of the vertical mounting plate 22; in general, symmetrical side wing plates 23 are further arranged on two sides of the vertical mounting plate 22, the side wing plates 23 are generally trapezoidal thin plates, the upper bottoms of the side wing plates 23 are shorter, a fixed connecting plate 24 is arranged between the upper bottoms of the side wing plates 23 on the two sides, and a lifting plate 241 is generally arranged in the middle of the connecting plate 24 and used for lifting the support 2 and the fan after the assembly is completed;
the casing 1 is a conventional spiral volute, an air outlet 11 is arranged on the casing 1, an air inlet mounting hole is formed in the front side plate of the casing 1, a motor mounting hole is formed in the rear side plate, casing mounting holes 12 matched with the casing fixing holes in the vertical mounting plates 22 are further formed in the rear side plate, two groups of the casing mounting holes 12 are symmetrically arranged along the horizontal center line of the rear side plate, and the casing 1 is fixed on the vertical mounting plates 22 of the supports 2 through bolts and the like after the casing mounting holes 12 are matched with the casing fixing holes; because the shell mounting holes 12 on the back side plate of the shell are arranged into two symmetrical groups, when the shell 1 is connected with the bracket 2, the shell can be mounted in a mode that the air outlet 11 faces upwards, and can also be mounted in a mode that the air outlet 11 faces downwards;
an air inlet 5 is arranged in an air inlet mounting hole of a front side plate of the machine shell 1, the air inlet 5 is generally fixedly welded on the front side plate of the machine shell 1, the air inlet 5 is cylindrical, the middle part of the air inlet 5 is fixed on the front side plate of the machine shell 1, and the air inlet 5 is close to the impeller 4 as much as possible, so that air volume loss can be reduced; one end of the air inlet 5 close to the impeller 4 is provided with a step part 51;
the impeller 4 comprises a hub, a front disk 41, a rear disk and blades, wherein an air inlet ring 42 is arranged on the part, close to the air inlet 5, of the front disk 41, the air inlet ring 42 is fixedly welded on the front disk 41, is in a circular ring shape, is matched with the step part 51 in shape and is arranged outside the step part 51, and the inner diameter of the air inlet ring 42 is not larger than the outer diameter of the air inlet 5 and is larger than the outer diameter of the step part 51; the air inlet ring 42 is also provided with a sealing piece 43, the inner diameter of the sealing piece 43 is larger than the outer diameter of the step part 51, and the sealing piece 43 can adopt a labyrinth seal.
The side wing plate 23 may be provided with lightening holes 231, and may be used for lifting if necessary.
The worm plate of the casing 1 can be also provided with a maintenance window, and the side plate can be also provided with a maintenance window.
The utility model relates to a technology exhaust fan with 180-degree convertible air outlet direction, when using, similar to the conventional fan, shipment is carried out after assembly is completed in advance, when installation is carried out on a construction site, if the air outlet pipeline position is just far away from the assembled fan air outlet, the rear side plate of a casing 1 and a fixing device such as a bolt and the like on a vertical mounting plate 22 are loosened, the casing 1 is turned for 180 degrees by adopting a hoisting device, after the casing 1 is turned for 180 degrees, the direction of an air outlet 11 is turned for 180 degrees, because the rear side plate of the casing 1 is provided with a casing fixing hole which is symmetrically arranged along the central line, after turning, a casing mounting hole 12 on the rear side plate of the casing 1 can still be matched with a casing fixing hole on the vertical mounting plate 22, after fixing is carried out by using the bolt and the like again, if the mounting position is determined, the vertical mounting plate 22 and the rear, the firmness is further enhanced; when the fan is produced, the position of the air outlet does not need to be considered to be positioned above or below, the fan can be used after being transported to an installation site and adjusted according to the site conditions, and the cost and time for pipeline modification are reduced; when the impeller 4 is driven by the motor 3 to rotate, the air inlet ring 42 of the front disk is arranged on the outer side of the step part 51 of the air inlet 5 and is not in contact with the air inlet 5, so that the normal operation of the impeller 4 is not influenced; most of the air sucked from the air inlet 5 directly enters the impeller to circulate, a small amount of air escapes from the air between the air inlet ring 42 and the step part 51, and because the air channel at the section is narrow and bent, and the sealing element 43 is also arranged in the air inlet ring 42, the lost air amount is very small, and the normal flow and pressure of the fan can be ensured.
In the description of the present specification, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of describing the technical solutions of the present patent and for simplification of the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present patent application.
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 this patent application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this specification, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; 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 specification can be understood by those of ordinary skill in the art as appropriate.
In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via 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.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (5)
1. A craft air exhaust fan with 180-degree convertible air outlet direction comprises a machine shell, a bracket, a motor, an impeller and an air inlet; it is characterized in that the preparation method is characterized in that,
the support is of an L-shaped structure and comprises a lower bottom plate and a vertical mounting plate, the lower bottom plate is a flat thin plate, a plurality of mounting holes and fixing holes are formed in the lower bottom plate, and the motor is horizontally mounted on the lower bottom plate through the mounting holes; the lower part of the vertical mounting plate is provided with a mounting plate through hole, and the lower part of the mounting plate through hole penetrates through the vertical mounting plate and is connected with the lower bottom plate; the vertical mounting plate is provided with a casing fixing hole which is symmetrically arranged along the vertical central line of the vertical mounting plate; the two sides of the vertical mounting plate are provided with symmetrical side wing plates, the side wing plates are trapezoidal thin plates, the upper bottoms of the side wing plates are shorter, and a fixed connecting plate is arranged between the upper bottoms of the side wing plates on the two sides;
the casing is a conventional spiral volute, an air outlet is formed in the casing, an air inlet mounting hole is formed in the front side plate of the casing, a motor mounting hole is formed in the rear side plate of the casing, casing mounting holes matched with the casing fixing holes in the vertical mounting plate are further formed in the rear side plate, and two groups of casing mounting holes are symmetrically formed along the horizontal center line of the rear side plate;
an air inlet is arranged in an air inlet mounting hole of the front side plate of the shell, the air inlet is fixedly welded on the front side plate of the shell, the air inlet is cylindrical, the middle part of the air inlet is fixed on the front side plate of the shell, and one end of the air inlet, which is close to the impeller, is provided with a step part;
the impeller comprises a hub, a front disk, a rear disk and blades, wherein an air inlet ring is arranged at the position, close to an air inlet, of the front disk, the air inlet ring is fixedly welded on the front disk, is in a circular ring shape, is matched with the shape of the step part, is arranged outside the step part, and the inner diameter of the air inlet ring is not more than the outer diameter of the air inlet and is more than the outer diameter of the step part; and a sealing piece is arranged in the air inlet ring, and the inner diameter of the sealing piece is larger than the outer diameter of the step part.
2. A process exhaust fan with 180-degree convertible outlet direction according to claim 1, wherein said sealing member is a labyrinth seal.
3. A process exhaust fan with 180-degree convertible outlet direction according to claim 1, wherein a lifting plate is arranged in the middle of the connecting plate.
4. A process exhaust fan with 180-degree convertible wind outlet direction according to claim 1, wherein the side wing plate is provided with lightening holes.
5. A process exhaust fan with 180-degree convertible outlet direction according to claim 1, wherein the casing is provided with a maintenance window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020645339.8U CN212225600U (en) | 2020-11-13 | 2020-11-13 | Technology air exhaust fan with 180-degree switchable air outlet direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020645339.8U CN212225600U (en) | 2020-11-13 | 2020-11-13 | Technology air exhaust fan with 180-degree switchable air outlet direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212225600U true CN212225600U (en) | 2020-12-25 |
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ID=73908459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020645339.8U Active CN212225600U (en) | 2020-11-13 | 2020-11-13 | Technology air exhaust fan with 180-degree switchable air outlet direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212225600U (en) |
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2020
- 2020-11-13 CN CN202020645339.8U patent/CN212225600U/en active Active
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Address after: No.40 Xinhua Road, Xinqiao Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Jiangsu Jingya fan Co.,Ltd. Address before: No.40 Xinhua Road, Xinqiao Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: JIANGYIN JINGYA FAN Co.,Ltd. |