CN211174675U - Centrifugal fan with adjustable air outlet port - Google Patents
Centrifugal fan with adjustable air outlet port Download PDFInfo
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- CN211174675U CN211174675U CN201920939814.XU CN201920939814U CN211174675U CN 211174675 U CN211174675 U CN 211174675U CN 201920939814 U CN201920939814 U CN 201920939814U CN 211174675 U CN211174675 U CN 211174675U
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Abstract
The utility model relates to the technical field of fans, in particular to a centrifugal fan with an adjustable air outlet port, which comprises a fan body and an air outlet regulator arranged at the air outlet end of the fan body, wherein the air outlet regulator comprises a circular ring plate, a separation blade and an adjusting ring, the circular ring plate is fixed on the air outlet end of the fan body, the separation blade is an arc-shaped sheet, a plurality of separation blade circumferences are uniformly distributed on the circular ring plate, one end of the separation blade is rotatably arranged on the circular ring plate, the other end of the separation blade is mutually stacked with the adjacent separation blade to form an air outlet, the adjusting ring is rotatably arranged on the circular ring plate, an adjusting column is fixed on the separation blade, and a chute which is slidably connected with the adjusting; the utility model discloses can pass through the air outlet bore size that the adjustable ring changed the fan body according to the demand to the realization changes the air-out velocity of flow under the condition that does not change whole amount of wind, improves the application scope of product extensively, and has the convenient characteristics of regulation.
Description
Technical Field
The utility model relates to a fan technical field, concretely relates to centrifugal fan.
Background
The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. The blower is a short form of habit of China for gas compression and gas conveying machinery, and generally comprises a ventilator and a blower.
The fan is mainly applied to ventilation in various fields of national economy such as metallurgy, petrifaction, electric power, urban rail transit, textile, ships and the like and various places. Besides the traditional application field, the method still has a great development prospect in more than 20 potential market fields such as comprehensive utilization of coal gangue, technical improvement of novel dry clinker, energy conservation and comprehensive utilization of resources in metallurgical industry and the like.
The existing fans are mainly divided into a centrifugal fan, an axial flow fan, a mixed flow fan and a cross flow fan; among them, centrifugal fans are widely used for ventilation, dust exhaust, 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; in the production of workshops such as carpenters, plastics, resins, concrete and the like, ventilating ducts are arranged in independent working procedures for ventilating or collecting dust by using a centrifugal fan; the centrifugal fan in the current market has certain limitation, and the caliber of an air outlet pipe of the centrifugal fan cannot be changed, so that the air outlet rate of the air outlet pipe cannot be changed at will, and the application range is small; there is also a centrifugal fan using an adjustable motor, and the air output of the fan is changed by changing the output power of the motor, so that the air outlet rate is changed, but the equipment cost is increased undoubtedly by using the adjustable-speed motor.
Disclosure of Invention
The utility model aims at providing a centrifugal fan of air-out port size adjustable to prior art not enough.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an air-out port adjustable centrifugal fan, includes fan body and the air-out regulator of setting at fan body air-out end, air-out regulator includes ring board, separation blade and adjustable ring, the ring board is fixed and is served at fan body air-out, the separation blade is the arc thin slice, and is a plurality of separation blade circumference equipartition is on the ring board, and separation blade one end is rotated and is installed on the ring board, and the other end and the separation blade of neighbouring range upon range of each other constitute the air outlet, the adjustable ring rotates and installs on the ring board, be fixed with the regulation post on the separation blade, be equipped with on the adjustable ring with regulation post sliding connection's chute.
Furthermore, the adjusting ring and the blocking piece are both installed on the surface, away from the fan body, of the circular ring plate.
Furthermore, the outer edge of the circular ring plate is provided with a bending edge extending towards the direction far away from the fan body, the bending edge is provided with a limiting groove, and the edge of the adjusting ring is fixed with an adjusting handle penetrating through the limiting groove.
Furthermore, the bending device further comprises a hand-screwed nut, wherein the hand-screwed nut is in threaded connection with the adjusting handle and is positioned on the outer side of the bending edge.
Furthermore, the inner peripheral surface of the bending edge is attached to the outer peripheral surface of the adjusting ring.
Furthermore, a current collector is installed on the inner side of the air outlet end of the fan body.
The air inlet regulator comprises a round pipe, air door blades and a regulating ring, the round pipe is fixed on the air inlet end of the fan body, the air door blades are evenly distributed on the inner periphery of the round pipe, and the regulating ring is sleeved on the outer periphery of the round pipe and used for regulating the inclination angle of the air door blades.
Furthermore, the one end that the air door leaf is close to the intraductal all round edge of pipe rotates with the pipe to be connected, the other end that the air door leaf is close to the intraductal all round edge of pipe rotates with the regulation circle through the round pin axle to be connected, be equipped with the fluting that supplies round pin axle slide adjusting on the pipe.
Furthermore, the baffle plates are 10-20.
Furthermore, the baffle plate is a thin sheet made of manganese steel.
The utility model discloses following beneficial effect has:
the utility model discloses can pass through the air outlet bore size that the adjustable ring changed the fan body according to the demand to the realization changes the air-out velocity of flow under the condition that does not change whole amount of wind, improves the application scope of product extensively, and has the convenient characteristics of regulation.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is an enlarged view of FIG. 1 at B;
FIG. 4 is an enlarged view of FIG. 1 at C;
FIG. 5 is a schematic side sectional view of the present invention;
fig. 6 is a schematic top view of the air outlet of the present invention when the air outlet is opened to the maximum;
fig. 7 is a schematic top view of the air outlet of the present invention when the air outlet is opened to the minimum;
FIG. 8 is a schematic view of the adjustment ring of FIG. 7 with the adjustment ring concealed;
FIG. 9 is a schematic view of the adjusting ring;
FIG. 10 is a schematic view of the structure of the baffle plate;
in the figure: 1. a fan body; 2. an air outlet regulator; 3. an air intake regulator; 11. a current collector; 21. a circular ring plate; 22. a baffle plate; 23. an adjusting ring; 24. an air outlet; 25. an adjusting handle; 26. screwing the nut by hand; 31. a circular tube; 32. a leaf of the lamina; 33. an adjusting ring; 211. bending edges; 212. a limiting groove; 221. an adjustment column; 231. a chute; 311. and (4) slotting.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the present invention.
As shown in fig. 1-10 the utility model relates to an air-out port adjustable centrifugal fan, including fan body 1 and the air-out regulator 2 of setting at 1 air-out end of fan body, air-out regulator 2 includes ring plate 21, separation blade 22 and adjustable ring 23, ring plate 21 is fixed at 1 air-out of fan body and is served, separation blade 22 is the arc thin slice, and is a plurality of separation blade 22 circumference equipartition is on ring plate 21, and separation blade 22 one end is rotated and is installed on ring plate 21, and the other end and the separation blade 22 of neighbouring range upon range of each other constitute air outlet 24, adjustable ring 23 rotates and installs on ring plate 21, be fixed with on the separation blade 22 and adjust post 221, be equipped with on the adjustable ring 23 with adjust post 221 sliding connection's chute 231.
It is worth saying that the utility model discloses a fan body 1 is ordinary spiral case formula centrifugal fan, and spiral case, main shaft, impeller, bearing drive mechanism and motor etc. that it contained all belong to prior art.
The utility model discloses during the use, the workman can rotate adjustable ring 23 according to the user demand, through chute 231 with adjust the cooperation of post 221 and drive separation blade 22 swing, the minimum distance that is close to ring plate 21 axle center after the swing of range upon range of separation blade 22 changes to change the size of air outlet 24 between the separation blade, realize the quick adjustment of wind export 24 size, can change the gas flow rate under the unchangeable condition of whole flow, have the convenient characteristics of regulation.
Preferably, the port of the air outlet end of the fan body 1 is circular, the air outlet 24 formed by the baffle plates 22 is similar to a circle, and the port of the air outlet end of the fan body 1 is a circular port, so that the air can flow out conveniently and the circular plate 21 can be mounted conveniently; specifically, the annular plate 21 may be mounted by welding or screw fixing.
Preferably, the adjusting column 221 may be a cylindrical block directly welded on the surface of the baffle plate 22 or a pin inserted through the back side of the baffle plate 22, and the chute 231 has a groove width equal to the outer diameter of the adjusting column 221.
As shown in fig. 3, the blocking sheets 22 are installed in a clockwise stacked manner, that is, the swing end of the next blocking sheet 22 arranged in the clockwise direction is placed at the swing end of the previous blocking sheet 22, and the blocking sheets 22 are stacked in sequence to form a closed loop, so as to obtain the blocking sheet 22 set shown in fig. 8, and a gap is left in the middle of the blocking sheet 22 set, and the gap is the air outlet 24.
Preferably, as shown in fig. 7, the inclined slot 231 gradually extends towards the axis of the adjusting ring 23 in a clockwise direction, and the arrangement pattern can increase the swing amplitude of the adjusting ring 23 when adjusting the blocking piece 22, thereby improving the adjustment accuracy of the air outlet 24 and reducing the force applied by workers.
Preferably, the axial center of the adjusting ring 23 is collinear with the axial center of the circular ring plate 21.
Preferably, the blocking plate 22 is provided with a counter bore and is actively connected with the circular ring plate 21 by a flat head pin penetrating through the counter bore and mounted on the circular ring plate 21, and the flat head surface of the flat head pin is flush with the surface of the blocking plate 22, so as to ensure that the adjusting ring 23 can smoothly rotate when a worker operates the adjusting ring.
Preferably, the adjusting ring 23 and the baffle 22 are both installed on the surface of the circular ring plate 21 away from the blower body 1.
Preferably, the outer edge of the circular ring plate 21 is provided with a bent edge 211 extending in a direction away from the blower body 1, the bent edge 211 is provided with a limit groove 212, and the edge of the adjusting ring 23 is fixed with an adjusting handle 25 penetrating through the limit groove 212; the worker can swing the adjusting ring 23 through the adjusting handle 25 in a labor-saving manner, then the blocking piece 22 is driven to rotate, and the adjusting handle 25 is arranged, so that the adjusting process of the air outlet 24 is simplified.
Preferably, the device further comprises a hand nut 26, wherein the hand nut 26 is in threaded connection with the adjusting handle 25 and is positioned outside the bent edge 211; after the air outlet 24 is adjusted, a worker can twist the hand-screwed nut 26 to enable the hand-screwed nut 26 to extrude the outer wall of the bent edge 211 so as to fix the adjusting ring 23 on the circular ring plate 21, so that the air outlet 24 is prevented from being opened or reduced by equipment or other factors, and the air outlet 24 can be guaranteed to be kept in size when in use.
Preferably, the inner peripheral surface of the bending edge 211 is attached to the outer peripheral surface of the adjusting ring 23; spacing groove 212 and regulation handle 25 cooperation can prevent that adjustable ring 23 from deviating from outward, and the limit 211 of bending can guarantee with the laminating of adjustable ring 23 that adjustable ring 23 axle center can not squint when rotating to improved the utility model discloses an adjusting the degree of accuracy.
More specifically, when the present invention is assembled, the adjusting ring 23 can be assembled first, and then the adjusting handle 25 is welded and fixed on the adjusting ring 23 after passing through the limiting groove 212.
Preferably, a current collector 11 is installed inside the air outlet end of the fan body 1, and the current collector 11 is placed on the front side of the annular plate 21; if the annular plate 21 and the baffle 22 are directly installed, the air flow at the air outlet end can generate right-angle turbulence when the air is exhausted from the fan body 1, so that the air guide of the current collector 11 is increased, the air outlet resistance of the air can be reduced, the air supply stability of the fan is ensured, and the noise is reduced.
Preferably, the collector 11 is a conical tube disposed on the inner wall of the air outlet end of the blower body 1.
Preferably, the air inlet regulator 3 is arranged at the air inlet end of the fan body 1, the air inlet regulator 3 comprises a circular pipe 31, air door blades 32 and a regulating ring 33, the circular pipe 31 is fixed at the air inlet end of the fan body 1, the circumferences of the air door blades 32 are uniformly distributed on the inner circumference of the circular pipe 31, and the regulating ring 33 is sleeved on the outer circumference of the circular pipe 31 and used for regulating the inclination angle of the air door blades 32; the workman can change the inclination of air door leaf 32 through adjusting ring 33, and then change the effect of keeping out the wind of air door leaf 32, realizes the adjustment of intake to the realization changes the supply-air volume under the condition of not changing motor power.
Preferably, one end of the damper blade 32 close to the inner peripheral edge of the circular tube 31 is rotatably connected with the circular tube 31 through a pin shaft, the other end of the damper blade 32 close to the inner peripheral edge of the circular tube 31 is rotatably connected with the adjusting ring 33 through a pin shaft, and the circular tube 31 is provided with a slot 311 for sliding adjustment of the pin shaft; specifically, the worker can rotate the adjusting ring 33 to drive the pin shaft to slide in the slot 311, so as to swing the air door blade 32, and then the air inlet resistance can be changed, thereby changing the air inlet amount of the fan body 1.
Preferably, the number of the air door blades is 10-20, and in the embodiment, the number of the air door blades is preferably 15.
Preferably, the damper blades 32 are triangular in shape.
Preferably, the baffle 22 is 10-20 pieces, preferably 15 pieces in this embodiment.
Preferably, separation blade 22 is the thin slice that 65 manganese steel material made, and 65 manganese steel belongs to one kind of spring steel, has stronger elastic restoring force and compressive strength, separation blade 22 adopts range upon range of installation to make separation blade 22 have certain deformation, and especially when adjusting the air outlet 24 size, deformation continuously changes, and separation blade 22 adopts 65 manganese steel material can guarantee that separation blade 22 still can recover as before under long-term the use, effectively improves the product durability.
The utility model discloses can pass through adjustable ring 23 according to the demand and change 24 bore sizes of air outlet of fan body 1 to the realization changes the air-out velocity of flow under the condition that does not change whole amount of wind, and the application scope that improves the product is wide, and has the convenient characteristics of regulation.
Various other changes and modifications may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the scope of the present invention.
Claims (10)
1. The utility model provides an air-out port adjustable centrifugal fan which characterized in that: including fan body (1) and setting air-out regulator (2) at fan body (1) air-out end, air-out regulator (2) include ring board (21), separation blade (22) and adjustable ring (23), ring board (21) are fixed and are served at fan body (1) air-out, separation blade (22) are the arc thin slice, and are a plurality of separation blade (22) circumference equipartition is on ring board (21), and separation blade (22) one end is rotated and is installed on ring board (21), and the other end and adjacent separation blade (22) are range upon range of each other and are constituted air outlet (24), adjustable ring (23) are rotated and are installed on ring board (21), be fixed with on separation blade (22) and adjust post (221), be equipped with on adjustable ring (23) and adjust post (221) sliding connection's chute (231).
2. The centrifugal fan with the adjustable air outlet port of claim 1, wherein: the adjusting ring (23) and the baffle plate (22) are both installed on the surface, away from the fan body (1), of the circular ring plate (21).
3. The centrifugal fan with the adjustable air outlet port of claim 1, wherein: the outer edge of the circular ring plate (21) is provided with a bending edge (211) extending towards the direction far away from the fan body (1), the bending edge (211) is provided with a limiting groove (212), and the edge of the adjusting ring (23) is fixed with an adjusting handle (25) penetrating through the limiting groove (212).
4. The centrifugal fan with the adjustable air outlet port of claim 3, wherein: the adjusting handle is characterized by further comprising a hand-screwed nut (26), wherein the hand-screwed nut (26) is in threaded connection with the adjusting handle (25) and is positioned on the outer side of the bending edge (211).
5. The centrifugal fan with the adjustable air outlet port of claim 3, wherein: the inner circumferential surface of the bending edge (211) is attached to the outer circumferential surface of the adjusting ring (23).
6. The centrifugal fan with the adjustable air outlet port of claim 1, wherein: and a current collector (11) is arranged on the inner side of the air outlet end of the fan body (1).
7. The centrifugal fan with the adjustable air outlet port of claim 1, wherein: still including installing air inlet regulator (3) at fan body (1) air inlet end, air inlet regulator (3) are including pipe (31), fan leaf (32) and regulation circle (33), pipe (31) are fixed and are served at fan body (1) air inlet, and are a plurality of fan leaf (32) circumference equipartition is at pipe (31) internal week, regulation circle (33) cup joint in pipe (31) periphery, are used for adjusting the inclination of fan leaf (32).
8. The centrifugal fan with the adjustable air outlet port of claim 7, wherein: the utility model discloses a fan blade, including tuber valve leaf (32), tuber valve leaf (31) are close to the one end and the pipe (31) rotation connection of all edges in pipe (31), the other end that tuber valve leaf (32) are close to all edges in pipe (31) is connected through round pin axle and regulation circle (33) rotation, be equipped with on pipe (31) and supply fluting (311) that the round pin axle slide adjusting.
9. The centrifugal fan with the adjustable air outlet port of claim 1, wherein: the baffle plates (22) are 10-20 pieces.
10. The centrifugal fan with the adjustable air outlet port of any one of claims 1 to 9, wherein: the baffle plate (22) is a thin sheet made of 65 manganese steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920939814.XU CN211174675U (en) | 2019-06-20 | 2019-06-20 | Centrifugal fan with adjustable air outlet port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920939814.XU CN211174675U (en) | 2019-06-20 | 2019-06-20 | Centrifugal fan with adjustable air outlet port |
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| Publication Number | Publication Date |
|---|---|
| CN211174675U true CN211174675U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920939814.XU Active CN211174675U (en) | 2019-06-20 | 2019-06-20 | Centrifugal fan with adjustable air outlet port |
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| CN (1) | CN211174675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779697A (en) * | 2020-08-17 | 2020-10-16 | 江苏恒康机电有限公司 | Rotation regulation formula centrifugal fan |
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2019
- 2019-06-20 CN CN201920939814.XU patent/CN211174675U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779697A (en) * | 2020-08-17 | 2020-10-16 | 江苏恒康机电有限公司 | Rotation regulation formula centrifugal fan |
| CN111779697B (en) * | 2020-08-17 | 2021-10-22 | 江苏恒康机电有限公司 | Rotation regulation formula centrifugal fan |
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