CN221322851U - Centrifugal fan - Google Patents
Centrifugal fan Download PDFInfo
- Publication number
- CN221322851U CN221322851U CN202323050011.4U CN202323050011U CN221322851U CN 221322851 U CN221322851 U CN 221322851U CN 202323050011 U CN202323050011 U CN 202323050011U CN 221322851 U CN221322851 U CN 221322851U
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- CN
- China
- Prior art keywords
- plate
- filter screen
- centrifugal fan
- welded
- threaded rod
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- 238000003466 welding Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000009711 regulatory function Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a centrifugal fan which is applied to the field of fans and comprises a bottom plate, wherein the top of the bottom plate is welded with a shell through a fixing piece, the top of the shell is provided with a mounting plate, the top of the mounting plate is bolted with a fan main body through a screw, the inside of the shell is rotationally connected with a threaded rod through a bearing, the surface of the threaded rod is in threaded connection with a lifting plate, a supporting plate is welded between the top of the lifting plate and the mounting plate, the front surface of the fan main body is provided with an air inlet pipe, the surface of the air inlet pipe is sleeved with an external sleeve in a sliding manner, and a filter screen is placed in the external sleeve; can possess high regulatory function, can be convenient for use with other equipment looks adaptations, reduce the cost increase and the personnel burden that interim customization pipeline caused, can be convenient for carry out swift dismouting to the filter screen simultaneously, easy operation is laborsaving, has improved staff's work efficiency, and the practicality is high.
Description
Technical Field
The utility model relates to the field of fans, in particular to a centrifugal fan.
Background
The centrifugal fan is a kind of ventilation, air exchange or air supply equipment designed and manufactured according to Euler's theorem and mass conservation law, and is a fan which utilizes the kinetic energy of rotor to increase gas pressure or utilizes the kinetic energy of inlet speed to correspondingly reduce static pressure so as to achieve a certain air quantity.
At present, the Chinese utility model with the bulletin number of CN206830526U discloses a centrifugal fan, which comprises: the device comprises a frame body, a shell, an air inlet pipe and an impeller; the shell comprises a spiral curve plate and two shell side plates; the inner side of the spiral curve plate is provided with a first wear-resistant lining group attached to the spiral curve plate; the inner side of the shell side plate is provided with a second wear-resistant liner group attached to the shell side plate; a first wear-resistant plate is arranged on the windward side of each blade of the impeller; the air inlet pipe is arranged on one of the shell side plates of the shell, and a first dustproof net is arranged on the air inlet pipe; the application provides a centrifugal fan, when the operation, dust and foreign matter in the air can not cause the washing away to casing and impeller itself to dust screen on the air-supply line can prevent partial dust and foreign matter to get into the fan, thereby has solved prior art's centrifugal fan when the operation in the more environment of dust and foreign matter in the air, because the wearing and tearing of impeller and casing cause the problem that life-span reduces.
The existing centrifugal fan is provided with a dust screen at the air inlet to avoid dust and foreign matters in the air from entering, but other problems exist in the use process, such as inconvenience in replacing and cleaning the filter screen, regular cleaning of dust attached to the filter screen is needed for guaranteeing sufficient air inlet quantity of the fan, but the filter screen is directly fixed through screws, so that the filter screen is required to be disassembled and assembled by other tools, the disassembly and assembly of the filter screen are complicated, the height adjusting function is not achieved, the position of the air outlet of the fan is not adjustable, when the air outlet of the fan is required to be connected with other equipment, due to deviation between interfaces of the fan and other equipment, a connecting pipeline is required to be additionally arranged between the air outlet of the fan and the filter screen, and the connecting pipeline is required to be temporarily arranged according to the deviation between the air outlet of the fan and the filter screen, so that the use cost is increased, and the burden of personnel is increased.
Disclosure of utility model
The utility model aims to provide a centrifugal fan which has the advantages that a filter screen can be conveniently and quickly disassembled and assembled, and the centrifugal fan can have a height adjusting function.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides a centrifugal fan, includes the bottom plate, the top of bottom plate has the casing through the mounting welding, the top of casing is provided with the mounting panel, the top of mounting panel has the fan main part through the screw bolt, the inside of casing is connected with the threaded rod through the bearing rotation, the surface threaded connection of threaded rod has the lifter plate, the welding has the backup pad between the top of lifter plate and the mounting panel, the air-supply line is installed in the front of fan main part, the surface sliding of air-supply line has cup jointed outside sleeve, the filter screen has been placed to outside telescopic inside, the opening has been seted up in outside telescopic front, the surface of air-supply line has the cardboard through the draw-in groove joint, there is spacing spring through the spring anchor sheet bolt between the opposite side of cardboard and the outside sleeve, the opposite side welding of cardboard has the dead lever.
By adopting the technical scheme, the filter screen can have a height adjusting function, can be conveniently used with other equipment in a matched mode, reduces the cost increase and personnel burden caused by temporarily customizing the pipeline, can be conveniently and rapidly disassembled and assembled to the filter screen, is simple and labor-saving to operate, improves the working efficiency of workers, and is high in practicability.
The utility model is further provided with: two sliding rails are bolted to the inside of the shell, and sliding blocks in sliding connection with the sliding rails are welded to two sides of the lifting plate.
By adopting the technical scheme, the lifting plate can be limited through the arrangement of the sliding rail and the sliding block, and the lifting plate is prevented from overturning in the process of moving up and down.
The utility model is further provided with: the other end of the threaded rod is welded with a rotating handle.
By adopting the technical scheme, through the setting of the rotating handle, the threaded rod can be rotated and turned by a worker conveniently.
The utility model is further provided with: the top of bottom plate has seted up the mounting hole, the quantity of mounting hole is four.
By adopting the technical scheme, the fan can be conveniently fixed through the arrangement of the mounting holes, and the trouble of temporarily punching the bottom plate is reduced.
The utility model is further provided with: and a telescopic rod is arranged between the other side of the clamping plate and the external sleeve.
By adopting the technical scheme, the clamping plate can be limited through the arrangement of the telescopic rod, and the clamping plate is prevented from inclining and propping in the transverse moving process.
The utility model is further provided with: the other end of the fixed rod penetrates to the outside of the outer sleeve and is welded with a pull plate.
By adopting the technical scheme, through the setting of arm-tie, can be convenient for the staff outwards stimulate the dead lever.
The utility model is further provided with: the diameter of the filter screen is the same as that of the air inlet pipe, and the inner diameter of the through hole is smaller than that of the filter screen.
By adopting the technical scheme, the filter screen can be limited, the filter screen can be prevented from shaking, and the stability of the filter screen after being placed is improved.
In summary, the utility model has the following beneficial effects:
1. According to the utility model, the rotating handle is held by a hand to rotate, the threaded rod is driven to rotate through the cooperation of the shell and the bearing when the rotating handle rotates, the threaded rod drives the lifting plate to move upwards through the cooperation of the sliding rail and the sliding block when the threaded rod rotates, and the lifting plate drives the mounting plate and the fan main body to move together through the fixation of the supporting plate when the lifting plate moves upwards, so that the fan main body has a height adjusting function, can be conveniently used in a matched mode with other equipment, and reduces the cost increase and personnel burden caused by temporarily customizing a pipeline.
2. According to the utility model, when the fan main body is in wiring operation, the power motor on the back of the fan main body drives the blades in the shell to rotate, the blades can suck air through the filtering of the filter screen when rotating, when the fan runs for a period of time, the two pull plates are grabbed by hands to pull outwards when impurities on the surface of the filter screen are excessive, the pull plates can drive the clamping plates to move outwards through the fixing of the fixing rods when being pulled outwards, the clamping plates can be separated from the clamping grooves on the air inlet pipe when being moved outwards, the outer sleeve is connected to the outside after the pull plates are pulled outwards, and finally the filter screen is taken down from the outer sleeve, so that the filter screen can be conveniently and rapidly disassembled, the operation is simple and labor-saving, the working efficiency of staff is improved, and the practicability is high.
Drawings
FIG. 1 is a perspective view of the structure of the present utility model;
FIG. 2 is a schematic diagram of the front of the structure of the present utility model;
FIG. 3 is a top partial cross-sectional view of the structure of the present utility model;
FIG. 4 is a front cross-sectional view of the housing of the present utility model;
Fig. 5 is an enlarged view of the structure of fig. 3 a according to the present utility model.
Reference numerals: 1. a bottom plate; 2. a housing; 3. a mounting plate; 4. a fan main body; 5. a threaded rod; 6. a lifting plate; 7. a support plate; 8. an air inlet pipe; 9. an outer sleeve; 10. a filter screen; 11. a clamping plate; 12. a limit spring; 13. a fixed rod; 14. a slide rail; 15. a slide block; 16. a rotating handle; 17. a mounting hole; 18. a telescopic rod; 19. pulling a plate; 20. and (5) a through hole.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Example 1:
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a centrifugal fan, including bottom plate 1, the top of bottom plate 1 has casing 2 through the mounting welding, the top of casing 2 is provided with mounting panel 3, the top of mounting panel 3 has fan main part 4 through the screw bolt, the inside of casing 2 is connected with threaded rod 5 through the bearing rotation, threaded rod 5's surface threaded connection has lifter plate 6, the welding has backup pad 7 between lifter plate 6's top and the mounting panel 3, rotate through holding the commentaries on classics handle 16 with the hand, the commentaries on classics handle 16 can drive threaded rod 5 and rotate under the cooperation of casing 2 and bearing, threaded rod 5 can drive lifter plate 6 through the cooperation of slide rail 14 and slider 15 and upwards move, lifter plate 6 can drive mounting panel 3 and fan main part 4 together under the fixed of backup pad 7 when upwards moving, can possess the height adjustment function, can be convenient for use with other equipment looks adaptation, the cost increase and personnel burden that the interim customization pipeline caused have been reduced.
Referring to fig. 4, two sliding rails 14 are bolted to the inside of the housing 2, and sliding blocks 15 slidably connected with the sliding rails 14 are welded to both sides of the lifting plate 6, so that the lifting plate 6 can be limited through the arrangement of the sliding rails 14 and the sliding blocks 15, and the lifting plate 6 is prevented from turning in the up-and-down movement process.
Referring to fig. 2 and 4, the other end of the threaded rod 5 is welded with a rotating handle 16, and by means of the arrangement of the rotating handle 16, a worker can conveniently rotate the threaded rod 5.
Referring to fig. 1 and 3, the top of the bottom plate 1 is provided with four mounting holes 17, and the fan can be conveniently fixed through the arrangement of the four mounting holes 17, so that the trouble of temporarily punching the bottom plate 1 is reduced.
The use process is briefly described: through holding the handle 16 with the hand and rotating, the handle 16 can drive threaded rod 5 to rotate through the cooperation of casing 2 and bearing when rotating, and threaded rod 5 can drive lifter plate 6 upward movement through the cooperation of slide rail 14 and slider 15 when rotating, and lifter plate 6 can drive mounting panel 3 and fan main part 4 and move together through the fixed lower of backup pad 7 when upwards moving.
Example 2:
Referring to fig. 1, 2, 3 and 5, an air inlet pipe 8 is installed on the front surface of a fan main body 4, an external sleeve 9 is sleeved on the surface of the air inlet pipe 8 in a sliding manner, a filter screen 10 is placed in the external sleeve 9, a through hole 20 is formed in the front surface of the external sleeve 9, a clamping plate 11 is clamped on the surface of the air inlet pipe 8 through a clamping groove, a limit spring 12 is bolted between the other side of the clamping plate 11 and the external sleeve 9 through a spring fixing piece, a fixing rod 13 is welded on the other side of the clamping plate 11, when the fan main body 4 runs in a wiring manner, a power motor on the back surface of the fan main body drives blades in the casing to rotate, the blade can inhale air through the filtration of filter screen 10 when rotatory, grasp two arm-tie 19 outwards pulling with the hand when the fan behind operation a period on filter screen 10 surface impurity too much, arm-tie 19 can drive cardboard 11 outwards removal through the fixed of dead lever 13 down when outwards pulling, cardboard 11 can be separated with the draw-in groove on the air-supply line 8 when outwards removing, pull outside the back together outside sleeve 9 when arm-tie 19 outwards draws to the bottom, finally take off filter screen 10 from outside sleeve 9 can, can be convenient for carry out swift dismouting to filter screen 10, easy operation is laborsaving, staff's work efficiency has been improved, the practicality is high.
Referring to fig. 5, a telescopic rod 18 is installed between the other side of the clamping plate 11 and the outer sleeve 9, and the clamping plate 11 can be limited through the arrangement of the telescopic rod 18, so that the clamping plate 11 is prevented from inclining and moving in the transverse moving process.
Referring to fig. 1, 2 and 3, the other end of the fixing rod 13 penetrates to the outside of the outer sleeve 9 and is welded with a pulling plate 19, and by the arrangement of the pulling plate 19, a worker can conveniently pull the fixing rod 13 outwards.
Referring to fig. 1, 2 and 3, the diameter of the filter screen 10 is the same as that of the air inlet pipe 8, and the inner diameter of the through hole 20 is smaller than that of the filter screen 10, so that the filter screen 10 can be limited, the shaking of the filter screen 10 can be avoided, and the stability of the filter screen 10 after being placed is improved.
The use process is briefly described: when the fan main body 4 runs in a wiring way, the power motor at the back of the fan main body drives the blades inside the casing to rotate, the blades suck air through the filtering of the filter screen 10 when rotating, when the fan runs for a period of time, the two pull plates 19 are pulled outwards by hands when the impurities on the surface of the filter screen 10 are excessive, the pull plates 19 can drive the clamping plates 11 to move outwards through the fixing of the fixing rods 13 when being pulled outwards, the clamping plates 11 can be separated from the clamping grooves on the air inlet pipes 8 when moving outwards, the pull plates 19 are pulled outwards to the bottom and then are pulled outwards together with the outer sleeve 9, and finally the filter screen 10 is taken down from the outer sleeve 9.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Claims (7)
1. Centrifugal fan, including bottom plate (1), its characterized in that: the utility model discloses a fan, including bottom plate (1), mounting plate (2), fan main part (4), threaded rod (5), lifter plate (6), air-supply line (8), outside sleeve (9) have been cup jointed in the surface slip of air-supply line (8), filter screen (10) have been placed to the inside of outside sleeve (9), through opening (20) have been seted up in the front of outside sleeve (9), the surface of air-supply line (8) has cardboard (11) through the draw-in groove joint, there is spacing spring (12) through the spring anchor sheet joint between the opposite side of cardboard (11) and outside sleeve (9), the opposite side welding of cardboard (11) has dead lever (13) between the top of lifter plate (6) and mounting plate (3).
2. Centrifugal fan according to claim 1, wherein two sliding rails (14) are bolted to the interior of the housing (2), and sliding blocks (15) in sliding connection with the sliding rails (14) are welded to both sides of the lifting plate (6).
3. Centrifugal fan according to claim 1, wherein the other end of the threaded rod (5) is welded with a turning handle (16).
4. Centrifugal fan according to claim 1, wherein the top of the bottom plate (1) is provided with mounting holes (17), the number of the mounting holes (17) being four.
5. A centrifugal fan according to claim 1, wherein a telescopic rod (18) is mounted between the other side of the clamping plate (11) and the outer sleeve (9).
6. A centrifugal fan according to claim 1, wherein the other end of the fixing rod (13) penetrates outside the outer sleeve (9) and is welded with a pull plate (19).
7. A centrifugal fan according to claim 1, wherein the diameter of the filter screen (10) is the same as the diameter of the air inlet duct (8), and the inner diameter of the through opening (20) is smaller than the diameter of the filter screen (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323050011.4U CN221322851U (en) | 2023-11-13 | 2023-11-13 | Centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323050011.4U CN221322851U (en) | 2023-11-13 | 2023-11-13 | Centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221322851U true CN221322851U (en) | 2024-07-12 |
Family
ID=91793692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323050011.4U Active CN221322851U (en) | 2023-11-13 | 2023-11-13 | Centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221322851U (en) |
-
2023
- 2023-11-13 CN CN202323050011.4U patent/CN221322851U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |