CN211819971U - Centrifugal fan stable in operation - Google Patents

Abstract

The utility model relates to a centrifugal fan technical field just discloses a centrifugal fan that moves stably, the on-line screen storage device comprises a base, the top fixed mounting of base has the motor, the back fixed mounting of base has the shell, the top fixed mounting of base has the casing that is located the motor right side, the top right side intercommunication of casing has out the tuber pipe, the top fixed mounting of base has the link that is located casing and the relative one side of shell, the inside movable mounting of link has both ends to extend to the connecting axle inside casing and shell respectively, the connecting axle is connected through the inside drive belt transmission that is located the shell with the motor, and the top fixed mounting of casing has the fixed plate, the left side cartridge of fixed plate has the connecting rod that extends to out the tuber pipe left. This centrifugal fan that operates stably, stable in structure is reasonable, and adjustable exhaust air wind speed adapts to different environment and equipment needs, and moves more stably, has improved the life of inside impeller.

Description

Centrifugal fan stable in operation

Technical Field

The utility model relates to a centrifugal fan technical field specifically is a centrifugal fan that operates stably.

Background

The centrifugal fan is a driven fluid machine which increases the gas pressure and discharges gas by means of input mechanical energy, and is 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.

Traditional centrifugal fan impeller is coaxial with the air intake, leads to the inhaled air to spill over easily, causes the collision with the inhaled air, influences impeller life, and can't adjust business turn over wind speed when using, is difficult to carry out different adjustments to different equipment and environment, so has proposed the stable centrifugal fan of operation and has solved the problem that the aforesaid was proposed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a centrifugal fan that operates stably possesses advantages such as the operation is stable, has solved traditional centrifugal fan impeller and air intake coaxial, leads to the air intake to spill over easily, causes the collision with the air intake, influences impeller life, and can't adjust business turn over wind speed when using, is difficult to carry out the problem of different adjustments to different equipment and environment.

(II) technical scheme

For the purpose that realizes above-mentioned operation stability, the utility model provides a following technical scheme: a centrifugal fan stable in operation comprises a base, wherein a motor is fixedly mounted at the top of the base, a shell is fixedly mounted at the back of the base, a shell positioned on the right side of the motor is fixedly mounted at the top of the base, an air outlet pipe is communicated with the right side of the top end of the shell, a connecting frame positioned on one side of the shell opposite to the shell is fixedly mounted at the top of the base, a connecting shaft with two ends respectively extending into the shell and the shell is movably mounted in the connecting frame, the connecting shaft is in transmission connection with the motor through a transmission belt positioned in the shell, a fixed plate is fixedly mounted at the top of the shell, a connecting rod extending to the left side of the air outlet pipe is inserted in the left side of the fixed plate, a handle is fixedly mounted at the left side of the connecting rod, limiting grooves are respectively formed in the front and the back of the inner wall of the air outlet pipe, sealing plates, the front fixed mounting of casing has the air inlet fill that extends to the casing inside, the front fixed mounting of connecting axle has the back dish that is located the casing inside, the front fixed mounting of back dish has the blade that is located the casing inside, the front fixed mounting of blade has the preceding dish with shells inner wall back swing joint.

Preferably, the bottom fixed mounting of base has the quantity to be four rubber cushion foot, the top fixed mounting of base has the fixing base with motor fixed connection.

Preferably, the output end of the motor and the back of the connecting shaft are both fixedly provided with a driving wheel positioned in the shell, and the driving wheel is matched with the driving belt.

Preferably, the outside of casing is cylindricly setting, the upper left side of the centre of a circle of air inlet fill to the casing centre of a circle is skew.

Preferably, the blades are all arc-shaped, are uniformly distributed in annular equal angles, and the back of the inner wall of the shell is movably connected with the front disc through a bearing.

Preferably, the front surface of the front disc is provided with an opening, and the connecting rod is in threaded connection with the fixing plate.

(III) advantageous effects

Compared with the prior art, the utility model provides a centrifugal fan that operates stably possesses following beneficial effect:

the centrifugal fan with stable operation can drive the sealing plate to move under the limit of the limit groove by rotating the connecting rod driven by the rotatable handle and moving left and right by the external thread and the fixed plate, thereby changing the ventilation area inside the air outlet pipe and adjusting the air speed, when in use, the motor drives the transmission belt to rotate, so that the connecting shaft drives the rear disc, the blades and the front disc to rotate, the air of the blade piece is pushed into the air outlet pipe under the centrifugal action during rotation, thereby finishing air outlet, when air is sucked, the external air directly enters the opposite sides of the blades through the air inlet hopper under the negative pressure of air, after rotation, the air inlet hopper is eccentrically arranged, so that the air entering is not easy to collide with the external air through the air inlet hopper, the self friction resistance of the air is reduced, and larger load on the blades is avoided, and the centrifugal fan has stable and reasonable structure, the air speed of the discharged air can be adjusted, the air speed adjusting device is suitable for different environments and equipment, the operation is more stable, and the service life of the inner impeller is prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side sectional view of the present invention;

fig. 3 is a front view of the blade of the present invention.

In the figure: the air conditioner comprises a base 1, a motor 2, a shell 3, a shell 4, an air outlet pipe 5, a connecting frame 6, a connecting shaft 7, a fixing plate 8, a connecting rod 9, a handle 10, a limiting groove 11, a sealing plate 12, a driving belt 13, an air inlet hopper 14, a rear disc 15, blades 16 and a front disc 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-3, a centrifugal fan with stable operation comprises a base 1, a motor 2 is fixedly installed on the top of the base 1, four rubber cushion feet are fixedly installed on the bottom of the base 1, a fixed seat fixedly connected with the motor 2 is fixedly installed on the top of the base 1, a housing 3 is fixedly installed on the back of the base 1, a housing 4 located on the right side of the motor 2 is fixedly installed on the top of the base 1, an air outlet pipe 5 is communicated with the right side of the top end of the housing 4, a connecting frame 6 located on the opposite side of the housing 4 and the housing 3 is fixedly installed on the top of the base 1, a connecting shaft 7 with two ends respectively extending to the interior of the housing 4 and the housing 3 is movably installed in the connecting frame 6, the connecting shaft 7 is in transmission connection with the motor 2 through a transmission belt 13 located in the housing 3, a transmission wheel located in the interior of the housing 3, the driving wheel is matched with a driving belt 13, a fixing plate 8 is fixedly installed at the top of the shell 4, a connecting rod 9 extending to the left side of the air outlet pipe 5 is inserted into the left side of the fixing plate 8, a handle 10 is fixedly installed at the left side of the connecting rod 9, limiting grooves 11 are respectively formed in the front side and the back side of the inner wall of the air outlet pipe 5, a sealing plate 12 penetrating through the left side of the air outlet pipe 5 and respectively extending to the two limiting grooves 11 in the front side and the back side is movably installed at the right side of the connecting rod 9, an air inlet hopper 14 extending to the inside of the shell 4 is fixedly installed at the front side of the shell 4, the outer part of the shell 4 is arranged in a cylindrical shape, the circle center of the air inlet hopper 14 deviates to the upper left side of the circle center of the shell 4, a rear disc 15 positioned in the shell 4 is fixedly installed at the front side of, the blades 16 are all arranged in an arc shape, the blades 16 are uniformly distributed in an annular equal angle, the back surface of the inner wall of the shell 4 is movably connected with the front disc 17 through a bearing, the front surface of the front disc 17 is provided with an opening, the connecting rod 9 is in threaded connection with the fixed plate 8, when the air inlet and outlet speed needs to be adjusted, the rotatable handle 10 drives the connecting rod 9 to rotate and move left and right with the fixed plate 8 through external threads, so that the sealing plate 12 can be driven to move under the limiting of the limiting groove 11, the ventilation area inside the air outlet pipe 5 is changed, the air speed is adjusted, when the wind speed adjusting device is used, the motor 2 drives the driving belt 13 to rotate, the connecting shaft 7 drives the rear disc 15, the blades 16 and the front disc 17 to rotate, air of the blades 16 is pushed into the air outlet pipe 5 under the centrifugal action during rotation, air outlet can be completed, when air is sucked, after the rotation, the eccentric setting of air inlet hopper 14 makes the air that gets into be difficult for producing the collision through air inlet hopper 14 and outside air, reduces the frictional resistance of air self, avoids producing great load to blade 16, and this centrifugal fan stable in structure is reasonable, and adjustable exhaust air wind speed adapts to different environment and equipment needs, and moves more stably, has improved the life of inside impeller.

To sum up, when the air inlet and outlet speed of the centrifugal fan needs to be adjusted, the rotatable handle 10 drives the connecting rod 9 to rotate, and the connecting rod and the fixed plate 8 move left and right through the external threads, so as to drive the sealing plate 12 to move under the limit of the limit groove 11, change the ventilation area inside the air outlet pipe 5, and adjust the air speed, when the centrifugal fan is used, the motor 2 drives the transmission belt 13 to rotate, so that the connecting shaft 7 drives the rear disc 15, the blades 16 and the front disc 17 to rotate, when the centrifugal fan rotates, the air of the blades 16 is pushed into the air outlet pipe 5 under the centrifugal action, so as to finish air outlet, when air is sucked, the external air directly enters the opposite sides of the blades 16 through the air inlet hopper 14 under the negative pressure, after the rotation, the eccentric arrangement of the air inlet hopper 14 enables the air to be difficult to collide with the external air through the air inlet hopper, avoid producing great load to blade 16, this centrifugal fan stable in structure is reasonable, adjustable exhaust air wind speed, it is required to adapt to different environment and equipment, and the operation is more stable, the life of inside impeller has been improved, it is coaxial with the air intake to have solved traditional centrifugal fan impeller, lead to the intake air to spill over easily, cause the collision with the intake air, influence impeller life, and can't adjust the business turn over wind speed when using, be difficult to carry out the problem of different adjustments to different equipment and environment.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a centrifugal fan that operates stably, includes base (1), its characterized in that: the air conditioner is characterized in that a motor (2) is fixedly mounted at the top of a base (1), a shell (3) is fixedly mounted at the back of the base (1), a shell (4) positioned on the right side of the motor (2) is fixedly mounted at the top of the base (1), an air outlet pipe (5) is communicated with the right side of the top end of the shell (4), a connecting frame (6) positioned on one side, opposite to the shell (4) and the shell (3), of the shell (4) is fixedly mounted at the top of the base (1), a connecting shaft (7) is movably mounted inside the connecting frame (6), two ends of the connecting shaft respectively extend to the shell (4) and the shell (3), the connecting shaft (7) is in transmission connection with the motor (2) through a transmission belt (13) positioned inside the shell (3), a fixing plate (8) is fixedly mounted at the top of the shell (4), and a connecting rod (9), the left side fixed mounting of connecting rod (9) has handle (10), spacing groove (11) have all been seted up with the back to the inner wall that goes out tuber pipe (5) openly, the right side movable mounting of connecting rod (9) has run through out tuber pipe (5) left side and openly and the back extends to two inside shrouding (12) of spacing groove (11) respectively, the front fixed mounting of casing (4) has the air inlet fill (14) that extends to casing (4) inside, the front fixed mounting of connecting axle (7) has rear disc (15) that is located casing (4) inside, the front fixed mounting of rear disc (15) has blade (16) that are located casing (4) inside, the front fixed mounting of blade (16) has preceding dish (17) with casing (4) inner wall back swing joint.

2. The centrifugal fan of claim 1, wherein: the bottom fixed mounting of base (1) has the quantity to be four rubber cushion foot, the top fixed mounting of base (1) has the fixing base with motor (2) fixed connection.

3. The centrifugal fan of claim 1, wherein: the output end of the motor (2) and the back of the connecting shaft (7) are fixedly provided with a driving wheel positioned in the shell (3), and the driving wheel is matched with the driving belt (13).

4. The centrifugal fan of claim 1, wherein: the outside of casing (4) is cylindricly setting, the upper left side of the centre of a circle of air inlet fill (14) to casing (4) is skew.

5. The centrifugal fan of claim 1, wherein: all be the arc setting in blade (16), blade (16) are the annular equal angle evenly distributed, the inner wall back and front bezel (17) of casing (4) pass through bearing swing joint.

6. The centrifugal fan of claim 1, wherein: the front surface of the front disc (17) is provided with an opening, and the connecting rod (9) is in threaded connection with the fixing plate (8).

Images