CN211343421U - Explosion-proof centrifugal fan - Google Patents
Explosion-proof centrifugal fan Download PDFInfo
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- CN211343421U CN211343421U CN201922252028.5U CN201922252028U CN211343421U CN 211343421 U CN211343421 U CN 211343421U CN 201922252028 U CN201922252028 U CN 201922252028U CN 211343421 U CN211343421 U CN 211343421U
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Abstract
The embodiment of the utility model discloses explosion-proof centrifugal fan, including explosion-proof machine and first casing, explosion-proof machine and first casing one side fixed connection, explosion-proof machine output shaft fixedly connected with pivot, a plurality of fan blades of pivot outer end fixedly connected with, the inside mechanism that cleans that is equipped with of first casing, clean the mechanism and include the second casing, the second casing is established inside first casing and is extended first casing top, the inside fixed block that is equipped with of second casing, fixed block one end run through second casing lateral wall and with the inside lateral wall fixed connection of first casing. The utility model discloses a rotate the second casing for relative motion takes place for first scraper blade and second casing, scrapes the dust of second shells inner wall adhesion, and relative motion takes place for second scraper blade and third scraper blade and first casing simultaneously, scrapes the dust of first shells inner wall adhesion, and then improves the utility model discloses a life.
Description
Technical Field
The embodiment of the utility model provides an embodiment relates to centrifugal fan technical field, concretely relates to explosion-proof centrifugal fan.
Background
The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.
When the existing centrifugal fan is used for a long time, a large amount of dust can be accumulated in the fan, the use of the fan is influenced, the service life of the fan is shortened, and therefore an explosion-proof centrifugal fan is needed.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides an explosion-proof centrifugal fan to when solving prior art middle and long-term use, the inside a large amount of dusts that can save together of fan influences the use of fan, reduces the life's of fan problem.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
an explosion-proof centrifugal fan comprises an explosion-proof motor and a first shell, wherein the explosion-proof motor is fixedly connected with one side of the first shell, an output shaft of the explosion-proof motor is fixedly connected with a rotating shaft, the outer end of the rotating shaft is fixedly connected with a plurality of fan blades, and a cleaning mechanism is arranged in the first shell;
the cleaning mechanism comprises a second shell, the second shell is arranged in the first shell and extends out of the top end of the first shell, a fixed block is arranged in the second shell, one end of the fixed block penetrates through the side wall of the second shell and is fixedly connected with one side wall in the first shell, one side of the second shell is fixedly connected with a sleeve, one end of the sleeve is fixedly connected with one side wall in the first shell, the fixed block is arranged in the sleeve, the bottom end of the fixed block is fixedly connected with a first scraper blade, the first scraper blade is contacted with the inner wall of the second shell, two second scraper blades are fixedly connected with two sides of the second shell, the two second scraper blades are arranged in the first shell, the front end of the second shell is fixedly connected with a third scraper blade, the rear end of the second shell is fixedly connected with two third scraper blades, the sleeve is positioned between the two third scraper blades, and the rotating shaft penetrates through the fixed block and, the two fan blades are arranged inside the second shell, and the first scraper blade is positioned at the bottom of the fan blades.
Further, a fixing seat is fixedly connected to the bottom end of the first shell.
Furthermore, four telescopic links are fixedly connected to the bottom end of the fixing base, and springs are sleeved at the outer ends of the four telescopic links.
Furthermore, two first bolts are arranged on the front side of the first shell, and one ends of the two first bolts penetrate through the front end of the first shell and are in contact with the front end of the second shell.
Furthermore, a second bolt is arranged at the rear end of the first shell and located at the top of the sleeve, and one end of the second bolt penetrates through the rear end of the first shell and extends into the interior of the second shell.
Further, an air outlet is formed in the top end of the second shell and located at the top of the second scraper.
Further, first casing front end is fixed and is equipped with first filter screen, first filter screen is located between two first bolts.
Further, a second filter screen is fixedly arranged at the front end of the second shell, and the second filter screen is located on the rear side of the first filter screen.
The embodiment of the utility model provides a have following advantage:
the utility model discloses through rotating the second casing when in-service use for relative motion takes place for first scraper blade and second casing, scrapes the dust of second shells inner wall adhesion, and relative motion takes place for second scraper blade and third scraper blade and first casing simultaneously, scrapes the dust of first shells inner wall adhesion, compares improvement with prior art the utility model discloses a life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is an elevation view of an overall structure of an explosion-proof centrifugal fan according to an embodiment of the present invention;
fig. 2 is a side sectional view of the overall structure of an explosion-proof centrifugal fan according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of the overall structure of an explosion-proof centrifugal fan according to an embodiment of the present invention;
fig. 4 is an enlarged view of a in fig. 2 of an explosion-proof centrifugal fan provided in an embodiment of the present invention;
fig. 5 is a perspective view of a second casing of an explosion-proof centrifugal fan according to an embodiment of the present invention;
in the figure: 1 explosion-proof motor, 2 first casing, 3 fixing bases, 4 telescopic links, 5 springs, 6 second casing, 7 first scraper blade, 8 first filter screens, 9 first bolts, 10 second filter screens, 11 fan blades, 12 pivot, 13 second scraper blade, 14 fixed blocks, 15 sleeves, 16 third scraper blade, 17 second bolts.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
An explosion-proof centrifugal fan as shown in the attached figures 1-5 comprises an explosion-proof motor 1 and a first shell 2, wherein the explosion-proof motor 1 is fixedly connected with one side of the first shell 2, an output shaft of the explosion-proof motor 1 is fixedly connected with a rotating shaft 12, the outer end of the rotating shaft 12 is fixedly connected with a plurality of fan blades 11, a cleaning mechanism is arranged inside the first shell 2, the cleaning mechanism comprises a second shell 6, the second shell 6 is arranged inside the first shell 2 and extends out of the top end of the first shell 2, a fixed block 14 is arranged inside the second shell 6, one end of the fixed block 14 penetrates through the side wall of the second shell 6 and is fixedly connected with one side wall inside the first shell 2, a sleeve 15 is fixedly connected with one side of the second shell 6, one end of the sleeve 15 is fixedly connected with one side wall inside the first shell 2, the fixed block 14 is arranged inside the sleeve 15, and a first scraper 7 is fixedly connected with the, first scraper blade 7 contacts with the 6 inner walls of second casing, two second scraper blades 13 of 6 both sides fixedly connected with of second casing, two second scraper blade 13 is established inside first casing 2, 6 front end fixedly connected with third scraper blade 16 of second casing, 6 rear end fixedly connected with of second casing two third scraper blades 16, sleeve 15 is located between two third scraper blades 16, pivot 12 runs through fixed block 14 and extends into inside second casing 6, two fan blade 11 is established inside second casing 6, first scraper blade 7 is located fan blade 11 bottom.
2 bottom fixedly connected with fixing base 3 of first casing increases the stability of first casing 2.
3 bottom fixedly connected with four telescopic links 4 of fixing base, four 4 outer ends of telescopic link all are equipped with spring 5, reduce the vibration.
The front side of the first shell 2 is provided with two first bolts 9, and one ends of the first bolts 9 penetrate through the front end of the first shell 2 and are in contact with the front end of the second shell 6 to fix the second shell 6.
The rear end of the first shell 2 is provided with a second bolt 17, the second bolt 17 is positioned at the top of the sleeve 15, and one end of the second bolt 17 penetrates through the rear end of the first shell 2 and extends into the second shell 6.
An air outlet is formed in the top end of the second shell 6 and located at the top of the second scraper 13.
The front end of the second shell 6 is fixedly provided with a second filter screen 10, and the second filter screen 10 is positioned on the rear side of the first filter screen 8.
The implementation mode is specifically as follows: the working personnel starts the explosion-proof motor 1, the explosion-proof motor 1 works to drive the rotating shaft 12 to rotate, so as to drive the fan blades 11 to rotate and further generate suction force, air is sucked into the second shell 6 through the first filter screen 8 and the second filter screen 10 and then is discharged through the air outlet formed in the top end of the second shell 6, the first shell 2 and the second shell 6 are also driven to vibrate while the explosion-proof motor 1 drives the fan blades 11 to rotate, the telescopic rod 4 is fixedly connected to the bottom end of the fixed seat 3, the outer end of the telescopic rod 4 is sleeved with the spring 5, the telescopic rod 4 is extruded when the fixed seat 3 vibrates, the spring 5 is compressed under the stress, the vibration generated in the work of the centrifugal fan is effectively reduced, the explosion of the centrifugal fan is prevented, the first bolt 9 and the second bolt 17 are unscrewed after the work is finished, the locking of the second shell 6 is released, the size of the air inlet is adjusted by rotating the, rotate second casing 6 simultaneously and drive first scraper blade 7 and remove, first scraper blade 7 takes place relative motion with second casing 6, scrape the dust of second casing 6 inner wall adhesion, second scraper blade 13 and third scraper blade 16 contact with first casing 2 inner wall, rotate second casing 6 and drive second scraper blade 13 and third scraper blade 16 and remove, second scraper blade 13 and third scraper blade 16 take place relative motion with first casing 2, scrape the dust of first casing 2 inner wall adhesion, clear up the dust of the inside adhesion of first casing 2 and second casing 6, improved the utility model discloses a life has solved centrifugal fan when long-term the use, and the inside a large amount of dust that can save of fan influences the use of fan, reduces fan life's problem.
The utility model discloses the theory of operation:
referring to the attached drawings 1-5 of the specification, a worker starts an explosion-proof motor 1, the explosion-proof motor 1 works to drive a fan blade 11 to rotate to generate suction force, air is sucked into a second shell 6 and then discharged from an air outlet formed in the top end of the second shell 6, the explosion-proof motor 1 drives the fan blade 11 to rotate and simultaneously drives a first shell 2 and the second shell 6 to vibrate, a telescopic rod 4 is fixedly connected to the bottom end of a fixed seat 3, a spring 5 is sleeved outside the telescopic rod 4, the telescopic rod 4 is extruded when the fixed seat 3 vibrates, the spring 5 is compressed under stress, after the work is finished, the second shell 6 is rotated to adjust the size of an air inlet, a first scraper 7 is in contact with the inner wall of the second shell 6, the second shell 6 is rotated to drive the first scraper 7 to move, the first scraper 7 and the second shell 6 generate relative motion, and a second scraper 13 and a third scraper 16 are, the second casing 6 is rotated to drive the second scraper 13 and the third scraper 16 to move, the second scraper 13 and the third scraper 16 and the first casing 2 move relatively, and dust adhered inside the first casing 2 and the second casing 6 is cleaned.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The utility model provides an explosion-proof centrifugal fan, includes explosion-proof motor (1) and first casing (2), its characterized in that: the anti-explosion motor (1) is fixedly connected with one side of the first shell (2), an output shaft of the anti-explosion motor (1) is fixedly connected with a rotating shaft (12), the outer end of the rotating shaft (12) is fixedly connected with a plurality of fan blades (11), and a cleaning mechanism is arranged inside the first shell (2);
the cleaning mechanism comprises a second shell (6), the second shell (6) is arranged inside the first shell (2) and extends out of the top end of the first shell (2), a fixing block (14) is arranged inside the second shell (6), one end of the fixing block (14) penetrates through the side wall of the second shell (6) and is fixedly connected with the side wall inside the first shell (2), a sleeve (15) is fixedly connected to one side of the second shell (6), one end of the sleeve (15) is fixedly connected with the side wall inside the first shell (2), the fixing block (14) is arranged inside the sleeve (15), a first scraper (7) is fixedly connected to the bottom end of the fixing block (14), the first scraper (7) is in contact with the inner wall of the second shell (6), two second scrapers (13) are fixedly connected to two sides of the second shell (6), and the second scrapers (13) are arranged inside the first shell (2), second casing (6) front end fixedly connected with third scraper blade (16), second casing (6) rear end fixedly connected with two third scraper blade (16), sleeve (15) are located between two third scraper blade (16), pivot (12) run through fixed block (14) and extend into inside second casing (6), two inside second casing (6) are established in fan blade (11), first scraper blade (7) are located fan blade (11) bottom.
2. An explosion-proof centrifugal fan according to claim 1, characterized in that: the bottom end of the first shell (2) is fixedly connected with a fixed seat (3).
3. An explosion-proof centrifugal fan according to claim 2, characterized in that: fixing base (3) bottom fixedly connected with four telescopic links (4), four telescopic link (4) outer end all overlaps and is equipped with spring (5).
4. An explosion-proof centrifugal fan according to claim 1, characterized in that: the front side of the first shell (2) is provided with two first bolts (9), and one ends of the first bolts (9) penetrate through the front end of the first shell (2) and are in contact with the front end of the second shell (6).
5. An explosion-proof centrifugal fan according to claim 1, characterized in that: first casing (2) rear end is equipped with second bolt (17), second bolt (17) are located sleeve (15) top, second bolt (17) one end runs through first casing (2) rear end and extends into inside second casing (6).
6. An explosion-proof centrifugal fan according to claim 1, characterized in that: an air outlet is formed in the top end of the second shell (6), and the air outlet is located at the top of the second scraper (13).
7. An explosion-proof centrifugal fan according to claim 4, characterized in that: first casing (2) front end is fixed and is equipped with first filter screen (8), first filter screen (8) are located between two first bolts (9).
8. An explosion-proof centrifugal fan according to claim 7, characterized in that: the front end of the second shell (6) is fixedly provided with a second filter screen (10), and the second filter screen (10) is located on the rear side of the first filter screen (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922252028.5U CN211343421U (en) | 2019-12-16 | 2019-12-16 | Explosion-proof centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922252028.5U CN211343421U (en) | 2019-12-16 | 2019-12-16 | Explosion-proof centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343421U true CN211343421U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922252028.5U Active CN211343421U (en) | 2019-12-16 | 2019-12-16 | Explosion-proof centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343421U (en) |
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2019
- 2019-12-16 CN CN201922252028.5U patent/CN211343421U/en active Active
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