CN219827286U - Centrifugal induced draft fan - Google Patents
Centrifugal induced draft fan Download PDFInfo
- Publication number
- CN219827286U CN219827286U CN202320994173.4U CN202320994173U CN219827286U CN 219827286 U CN219827286 U CN 219827286U CN 202320994173 U CN202320994173 U CN 202320994173U CN 219827286 U CN219827286 U CN 219827286U
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- CN
- China
- Prior art keywords
- induced draft
- draft fan
- half gear
- rack
- workbench
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- 238000001125 extrusion Methods 0.000 claims abstract description 31
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000000428 dust Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the technical field of induced draft fans, and discloses a centrifugal induced draft fan, which comprises an induced draft fan body, wherein a workbench is arranged at the lower end of the induced draft fan body, a filter screen is arranged on the side wall of the induced draft fan body, an adjusting device is arranged in the workbench, and the adjusting device comprises: device chamber, bearing, screw rod, sleeve, connecting block, backup pad, fixed frame, extrusion pole, spring, baffle, rack, half gear, clearance scraper blade, the screw rod rotates and can drive half gear simultaneously and rotate, make the rack drive extrusion pole upward movement through the meshing between half gear and the rack, the screw rod drives half gear and continues to rotate half gear and no longer meshes with the rack this moment, drive extrusion pole downward movement through the elasticity of spring and reset, drive half gear through the screw rod and constantly rotate and make the extrusion pole up and down reciprocating motion and then drive its lateral wall fixed connection's clearance scraper blade clear up the impurity on filter screen surface at last.
Description
Technical Field
The utility model relates to the technical field of induced draft fans, in particular to a centrifugal induced draft fan.
Background
The centrifugal fan is a machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, and is a driven fluid machine. Centrifugal fans are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings.
At present, a user usually directly and fixedly connects a centrifugal induced draft fan on the surface of a workbench to perform gas discharge operation, if the discharge position of the centrifugal induced draft fan needs to be adjusted, the integral position of the centrifugal induced draft fan needs to be changed, so that the time delay is prolonged, the working efficiency of the centrifugal induced draft fan is reduced, and a large amount of dust and impurities are sucked onto a filter screen on the surface of the induced draft fan when the centrifugal induced draft fan works, so that the probability of faults of the centrifugal induced draft fan is greatly improved; in view of the above, we propose a novel high-pressure high-flow centrifugal induced draft fan.
Disclosure of Invention
The utility model aims to provide a centrifugal induced draft fan so as to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a centrifugal induced draft fan that leads to, includes the induced draft fan body, induced draft fan body lower extreme is provided with the workstation, induced draft fan body lateral wall is provided with the filter screen, the inside adjusting device that is provided with of workstation, adjusting device includes:
the device cavity is formed in the workbench, one end of a bearing is fixedly connected to the inner wall of the device cavity, the other end of the bearing is rotationally connected with a screw rod, the surface of the screw rod is in threaded connection with a sleeve, the upper end of the sleeve is fixedly connected with a connecting block, the upper end of the connecting block is fixedly connected with a supporting plate, and the upper end of the supporting plate is fixedly connected with a draught fan body;
the fixed frame, fixed frame fixed connection has the extrusion pole in the workstation lateral wall, the inside of fixed frame runs through, the spring has been cup jointed on the outer wall of extrusion pole, fixed mounting has the baffle on the inner wall of fixed frame, extrusion pole lateral wall fixed mounting has the rack, the one end fixed surface that the screw rod is located the workstation outside has cup jointed half gear, extrusion pole lateral wall fixed connection clearance scraper blade.
Preferably, the rack is meshed with the half-gear.
Preferably, one end of the screw far away from the bearing penetrates through the fixed frame and is fixedly connected with the handle.
Preferably, a sliding port matched with the moving track of the connecting block is formed at the upper end of the workbench.
Preferably, the cleaning scraper is in contact with the surface of the filter screen.
Preferably, the lower end of the workbench is provided with a plurality of groups of supporting legs.
Compared with the prior art, the utility model provides a centrifugal induced draft fan, which has the following beneficial effects:
1. this centrifugal induced draft fan is through having set up adjusting device thereby conveniently accomplish the position to the induced draft fan body and remove the regulation, makes it more convenient when using, and the user can drive the screw rod through rotating the handle and rotate to drive the sleeve on screw rod surface and remove, thereby make the backup pad drive the induced draft fan body and remove the different needs of facilitating the use.
2. This centrifugal induced draft fan is through having set up fixed frame, extrusion pole, spring, baffle, rack, half gear, clearance scraper blade thereby conveniently accomplish the user and can drive half gear simultaneously and rotate when removing the draught fan body to make the extrusion pole reciprocate and drive its lateral wall fixed connection's clearance scraper blade and clear up the impurity on filter screen surface, thereby make things convenient for the device to use.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of a front cross-sectional structure of the present utility model;
FIG. 3 is a schematic side cross-sectional view of the present utility model.
In the figure: 1. a draught fan body; 2. a work table; 3. an adjusting device; 301. a device cavity; 302. a bearing; 303. a screw; 304. a sleeve; 305. a connecting block; 306. a support plate; 307. a fixed frame; 308. an extrusion rod; 309. a spring; 310. a partition plate; 311. a rack; 312. a half gear; 313. cleaning a scraping plate; 4. a filter screen; 5. a handle.
Detailed Description
As shown in fig. 1-3, the present utility model provides a technical solution: the utility model provides a centrifugal induced draft fan, includes induced draft fan body 1, and induced draft fan body 1 lower extreme is provided with workstation 2, and induced draft fan body 1 lateral wall is provided with filter screen 4, and workstation 2 inside is provided with adjusting device 3, and adjusting device 3 includes: the device cavity 301, the device cavity 301 is arranged inside the workbench 2, one end of the bearing 302 is fixedly connected to the inner wall of the device cavity 301, the other end of the bearing 302 rotates to be connected with the screw 303, the screw 303 is in threaded connection with the sleeve 304, the upper end of the sleeve 304 is fixedly connected with the connecting block 305, the upper end of the connecting block 305 is fixedly connected with the supporting plate 306, the upper end of the supporting plate 306 is fixedly connected with the induced draft fan body 1, the side wall of the workbench 2 is fixedly connected with the fixed frame 307, the extrusion rod 308 penetrates through the inside of the fixed frame 307, the spring 309 is sleeved on the outer wall of the extrusion rod 308, the partition 310 is fixedly arranged on the inner wall of the fixed frame 307, the rack 311 is fixedly arranged on the side wall of the extrusion rod 308, the half gear 312 is fixedly sleeved on the surface of one end of the screw 303, which is positioned outside the workbench 2, and the side wall of the extrusion rod 308 is fixedly connected with the cleaning scraping plate 313.
Specifically, the adjusting device 3 according to the present utility model includes: device cavity 301, bearing 302, screw 303, sleeve 304, connection block 305, support plate 306, fixed frame 307, extrusion rod 308, spring 309, spacer 310, rack 311, half gear 312, cleaning blade 313.
In one embodiment of the utility model, the device cavity 301 is arranged inside the workbench 2, one end of the bearing 302 is fixedly connected to the inner wall of the device cavity 301, the other end of the bearing 302 rotates to connect the screw 303, the surface of the screw 303 is in threaded connection with the sleeve 304, the upper end of the sleeve 304 is fixedly connected with the connecting block 305, the upper end of the connecting block 305 is fixedly connected with the supporting plate 306, the upper end of the supporting plate 306 is fixedly connected with the induced draft fan body 1, the position of the induced draft fan body 1 is conveniently moved and adjusted by arranging the adjusting device 3, so that the induced draft fan body 1 is more convenient to use, when the position of the induced draft fan body 1 is required to be adjusted by a user, the user can drive the screw 303 to rotate by rotating the handle 5, thereby driving the sleeve 304 on the surface of the screw 303 to move, driving the connecting block 305 and the supporting plate 306 to move, the induced draft fan body 1 to move according to different requirements of the user, the fixed frame 307 is fixedly connected to the side wall of the workbench 2, the extrusion rod 308 penetrates through the inside of the fixed frame 307, the spring 309 is sleeved on the outer wall of the extrusion rod 308, the baffle 310 is fixedly installed on the inner wall of the fixed frame 307, the rack 311 is fixedly installed on the side wall of the extrusion rod 308, the half gear 312 is fixedly sleeved on the surface of one end of the screw 303, which is positioned outside the workbench 2, the cleaning scraping plate 313 is fixedly connected to the side wall of the extrusion rod 308, because when the induced draft fan body 1 works, a large amount of dust impurities are sucked onto the filter screen 4 on the surface of the induced draft fan body 1, the user needs to clean the impurities on the surface of the filter screen 4 regularly, the cleaning scraping plate 313 is arranged to clean the impurities on the surface of the filter screen 4, when the user moves the induced draft fan body 1 through the rotation of the screw 303, the screw 303 rotates and drives the half gear 312 to rotate, the rack 311 drives the extrusion rod 308 to move upwards through the engagement between the half gear 312 and the rack 311, the screw 303 drives the half gear 312 to continue to rotate, the half gear 312 is not meshed with the rack 311 at the moment, the extrusion rod 308 is driven to move downwards to reset through the elastic force of the spring 309, and finally the screw 303 drives the half gear 312 to continuously rotate to enable the extrusion rod 308 to move up and down to drive the cleaning scraping plate 313 fixedly connected with the side wall of the extrusion rod 308 to clean impurities on the surface of the filter screen 4, so that the device is convenient to use.
With continued reference to fig. 1-3, the rack 311 is meshed with the half gear 312, one end of the screw 303, which is far away from the bearing 302, penetrates through the fixed frame 307 and is fixedly connected with the handle 5, a sliding opening adapted to the moving track of the connecting block 305 is provided at the upper end of the workbench 2, the cleaning scraper 313 is contacted with the surface of the filter screen 4, and a plurality of groups of supporting legs are provided at the lower end of the workbench 2.
In the embodiment of the present utility model, in order to facilitate the movement of the connection block 305, a slide opening adapted to the movement track of the connection block 305 is provided at the upper end of the table 2.
When the user needs to adjust the position to draught fan body 1, the user can drive screw rod 303 through rotation handle 5 and rotate, thereby drive sleeve 304 on screw rod 303 surface and remove, thereby drive connecting block 305 and backup pad 306 and remove, when the user is moving draught fan body 1 through rotation screw rod 303, screw rod 303 rotates and can drive half gear 312 simultaneously and rotate, make rack 311 drive the extrusion rod 308 upward movement through the meshing between half gear 312 and rack 311, screw rod 303 drives half gear 312 and continues to rotate half gear 312 and does not mesh with rack 311 this moment, drive extrusion rod 308 downward movement through the elasticity of spring 309 and reset, finally drive half gear 312 through screw rod 303 and constantly rotate and make extrusion rod 308 reciprocate and then drive its lateral wall fixed connection's clearance scraper 313 clear up and down to filter screen 4 surface's impurity, thereby make things convenient for the device to use.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (6)
1. The utility model provides a centrifugal induced draft fan, includes induced draft fan body (1), induced draft fan body (1) lower extreme is provided with workstation (2), induced draft fan body (1) lateral wall is provided with filter screen (4), its characterized in that: an adjusting device (3) is arranged inside the workbench (2), and the adjusting device (3) comprises:
the device comprises a device cavity (301), wherein the device cavity (301) is formed in a workbench (2), one end of a bearing (302) is fixedly connected to the inner wall of the device cavity (301), a connecting screw (303) is rotatably connected to the other end of the bearing (302), a sleeve (304) is connected to the surface of the screw (303) through threads, a connecting block (305) is fixedly connected to the upper end of the sleeve (304), a supporting plate (306) is fixedly connected to the upper end of the connecting block (305), and the upper end of the supporting plate (306) is fixedly connected with a draught fan body (1);
fixed frame (307), fixed frame (307) fixed connection is in workstation (2) lateral wall, the inside of fixed frame (307) is run through has extrusion pole (308), cup jointed spring (309) on the outer wall of extrusion pole (308), fixed mounting has baffle (310) on the inner wall of fixed frame (307), extrusion pole (308) lateral wall fixed mounting has rack (311), one end fixed surface that screw rod (303) are located the workstation (2) outside has cup jointed half gear (312), extrusion pole (308) lateral wall fixed connection clearance scraper blade (313).
2. A centrifugal draught fan according to claim 1, characterized in that: the rack (311) is meshed with a half gear (312).
3. A centrifugal draught fan according to claim 1, characterized in that: one end of the screw rod (303) far away from the bearing (302) penetrates through the fixed frame (307) and is fixedly connected with the handle (5).
4. A centrifugal draught fan according to claim 1, characterized in that: and a sliding port matched with the moving track of the connecting block (305) is formed at the upper end of the workbench (2).
5. A centrifugal draught fan according to claim 1, characterized in that: the cleaning scraping plate (313) is contacted with the surface of the filter screen (4).
6. A centrifugal draught fan according to claim 1, characterized in that: the lower end of the workbench (2) is provided with a plurality of groups of supporting legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320994173.4U CN219827286U (en) | 2023-04-27 | 2023-04-27 | Centrifugal induced draft fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320994173.4U CN219827286U (en) | 2023-04-27 | 2023-04-27 | Centrifugal induced draft fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827286U true CN219827286U (en) | 2023-10-13 |
Family
ID=88246910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320994173.4U Active CN219827286U (en) | 2023-04-27 | 2023-04-27 | Centrifugal induced draft fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827286U (en) |
-
2023
- 2023-04-27 CN CN202320994173.4U patent/CN219827286U/en active Active
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