CN216742039U - Centrifugal fan capable of reducing vibration - Google Patents

Abstract

The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan capable of reducing vibration, which comprises a fan body, wherein a bottom plate is fixed at the bottom of the fan body, a ground plate is arranged below the bottom plate, a plurality of control devices which are uniformly distributed are connected between the bottom plate and the ground plate, the control devices are positioned at the edge positions of the bottom plate and the ground plate, each control device comprises a transverse cylinder, an upright post and a buffer assembly, and the transverse cylinders are arranged in cambered grooves formed in the ground plate in a matching manner.

Description

Centrifugal fan capable of reducing vibration

Technical Field

The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan capable of reducing vibration.

Background

The centrifugal fan in the prior art can produce certain vibrations at the initial stage of work, can suppress through vibrations buffer gear, and ordinary vibrations buffer gear, the function is single, can not be fine satisfy the demand of buffering fan vibrations.

If the centrifugal fan provided by the utility model is provided with the self-adjusting type vibration buffering mechanism, the problem can be solved by gradually and automatically adjusting and repairing vibration until the vibration disappears while ensuring the release of the vibration pressure, and the centrifugal fan capable of slowing down the vibration is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a centrifugal fan capable of reducing vibration so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a centrifugal fan capable of reducing vibration comprises a fan body, a bottom plate is fixed at the bottom of the fan body, a ground plate is arranged below the bottom plate, a plurality of control devices which are uniformly distributed are connected between the bottom plate and the ground plate, the control devices are positioned at the edge positions of the bottom plate and the ground plate, the control device comprises a transverse cylinder, a vertical column and a buffer component, the transverse cylinder is arranged in an arc surface groove arranged on the grounding plate in a matching way, the upright post penetrates through a plate hole formed in the grounding plate, the buffer component penetrates through a plate hole formed in the bottom plate, the lower end of the buffer component is connected with an upright post, the lower end of the upright post is fixedly connected with a transverse cylinder, the buffer component comprises an interception disc, a first spring, a clamping ring and an inner post, the inner column middle ring is provided with a plurality of power components which are uniformly distributed, the inner column is provided with a main tube cavity and a branch tube cavity, and an air valve is arranged in the main tube cavity.

Preferably, the upper end of the inner column is fixedly connected with a blocking disc, a clamping ring is sleeved on the inner column and arranged above the bottom plate, a first spring is padded between the blocking disc and the clamping ring and sleeved on the inner column, the clamping ring is cylindrical, and a plurality of uniformly distributed annular grooves are formed in the inner wall of the barrel.

Preferably, a cylindrical groove is formed in the bottom of the inner column, the upper end of the upright column extends into the cylindrical groove in the inner column, a plurality of protruding sliding blocks which are uniformly distributed are arranged on the outer side wall of the upright column in a fixing mode, and the protruding sliding blocks partially extend into sliding grooves formed in the inner wall of the cylindrical groove in the inner column.

Preferably, the power assembly is arranged in a square groove formed in the inner column, one end of the branch pipe cavity is connected with the bottom surface of the square groove formed in the inner column, the other end of the branch pipe cavity is communicated with the main pipe cavity, one end of the main pipe cavity is communicated with the cylindrical groove formed in the inner column, and the other end of the main pipe cavity extends to the outside of the inner column.

Preferably, the power assembly comprises a piston column, a second spring and a gas pushing plate, wherein the piston column is fixedly connected to one end of the gas pushing plate, the piston column penetrates through the gas pushing plate, the piston column is in the shape of a cylinder one end integrally connected with a hemisphere, a cylindrical groove is formed in the end portion of the other end of the cylinder of the piston column, the second spring is arranged in the cylindrical groove, the second spring is filled between the piston column and the inner column, and the hemisphere end of the piston column is in contact with the clamping ring.

Preferably, be provided with two pneumatic valves in the main lumen, and two pneumatic valves are located the butt joint both sides of main lumen and branch lumen respectively, the pneumatic valve includes activity post, L type piece and a sealing cylinder, the sealing cylinder is fixed on the inner wall of main lumen, and one side of sealing cylinder is provided with the activity post, and the solid fixed ring is equipped with a plurality of evenly distributed's L type piece on the sealing cylinder, and L type piece part is projected in the spout of seting up on the lateral wall of activity post.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model realizes the effect of buffering the vibration of the fan with stable effect by structural design, realizes buffering by the elastic support of a plurality of first springs, and in addition, the elastic support effect on the first springs is gradually enhanced in the vibration continuous process, so that the vibration is gradually weakened, and the effect of self-regulation is realized;

2. according to the utility model, through the design of the control device, double working effects are realized, the structural design of parts is exquisite, vibration generated in the working process of the fan is gradually suppressed, the problem of vibration is gradually repaired in the later period while the release of the vibration pressure on the fan is ensured, and the safe working of the fan is ensured.

Drawings

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

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a diagram of a buffer assembly position distribution;

FIG. 4 is a schematic view of a horizontal cylinder structure;

FIG. 5 is a schematic view of a buffer assembly;

FIG. 6 is a schematic view of a power assembly;

fig. 7 is a schematic structural diagram at B in fig. 6.

In the figure: the device comprises a fan main body 1, a bottom plate 2, a ground plate 3, a control device 4, a transverse cylinder 5, a vertical column 6, a buffer component 7, a power component 8, an air valve 9, an intercepting disc 10, a first spring 11, a clamping ring 12, an inner column 13, a main pipe cavity 14, a branch pipe cavity 15, a piston column 16, a second spring 17, an air pushing plate 18, a movable column 19, an L-shaped sheet 20 and a sealing cylinder 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art without creative efforts based on the technical solutions of the present invention belong to the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution: a centrifugal fan capable of reducing vibration comprises a fan main body 1, a bottom plate 2 is fixed at the bottom of the fan main body 1, a ground plate 3 is arranged below the bottom plate 2, a plurality of control devices 4 which are uniformly distributed are connected between the bottom plate 2 and the ground plate 3, the control devices 4 are positioned at the edge positions of the bottom plate 2 and the ground plate 3, each control device 4 comprises a transverse cylinder 5, an upright post 6 and a buffer assembly 7, the transverse cylinder 5 is arranged in an arc groove formed in the ground plate 3 in a matching manner, the upright post 6 penetrates through a plate hole formed in the ground plate 3, the buffer assembly 7 penetrates through a plate hole formed in the bottom plate 2, the lower end of the buffer assembly 7 is connected with the upright post 6, the lower end of the upright post 6 is fixedly connected with the transverse cylinder 5, the buffer assembly 7 comprises a blocking disc 10, a first spring 11, a blocking ring 12 and an inner post 13, a plurality of power assemblies 8 which are uniformly distributed are arranged in the middle ring of the inner post 13, and a main pipe cavity 14 and a branch pipe cavity 15 are formed in the inner post 13, the air valve 9 is arranged in the main pipe cavity 14, the position relation of each part device is understood by referring to fig. 1 and fig. 3, when the rotating shaft in the fan main body 1 rotates to work, the bottom plate 2 is driven, so that the bottom plate 2 only slightly moves along the radial direction of the rotating shaft, namely, the bottom plate 2 and the grounding plate 3 slide in a staggered mode or are far away from each other, the bottom plate 2 is restrained by the control devices 4 in the process, the transverse cylinder 5 is hinged with the grounding plate 3, and therefore the bottom plate 2 can vibrate up and down and can also vibrate obliquely, and the control devices 4 are guaranteed to have a comprehensive buffering effect.

: the upper end of the inner column 13 is fixedly connected with a blocking disc 10, the inner column 13 is sleeved with a clamping ring 12, the clamping ring 12 is arranged above the bottom plate 2, a first spring 11 is padded between the blocking disc 10 and the clamping ring 12, the first spring 11 is sleeved on the inner column 13, the clamping ring 12 is cylindrical, and a plurality of uniformly distributed annular grooves are formed in the inner wall of the barrel.

The cylinder groove has been seted up to the bottom of interior post 13, and in the cylinder groove on 6 upper ends of stand extended to interior post 13, solid fixed ring was equipped with a plurality of evenly distributed's protrusion slider on the lateral wall of stand 6, and protrusion slider part extended to in the spout of seting up on the cylinder inslot wall of interior post 13.

The power component 8 is arranged in a square groove formed in the inner column 13, one end of the branch pipe cavity 15 is connected with the bottom surface of the square groove formed in the inner column 13, the other end of the branch pipe cavity 15 is communicated with the main pipe cavity 14, one end of the main pipe cavity 14 is communicated with a cylindrical groove formed in the inner column 13, and the other end of the main pipe cavity 14 extends to the outside of the inner column 13.

The power assembly 8 comprises a piston column 16, a second spring 17 and an air pushing plate 18, one end of the air pushing plate 18 is fixedly connected with the piston column 16, the piston column 16 penetrates through the air pushing plate 18, the piston column 16 is in the shape of a cylinder one end integrally connected with a hemisphere, a cylinder groove is formed in the end portion of the other end of the cylinder of the piston column 16, the second spring 17 is arranged in the cylinder groove, the second spring 17 is filled between the piston column 16 and the inner column 13, and the hemisphere end of the piston column 16 is in contact with the clamping ring 12.

The two air valves 9 are arranged in the main tube cavity 14, the two air valves 9 are respectively located on two sides of a butt joint of the main tube cavity 14 and the branch tube cavity 15, each air valve 9 comprises a movable column 19, an L-shaped sheet 20 and a sealing cylinder 21, the sealing cylinder 21 is fixed on the inner wall of the main tube cavity 14, the movable column 19 is arranged on one side of the sealing cylinder 21, the sealing cylinder 21 is fixedly provided with the L-shaped sheets 20 which are uniformly distributed, and the L-shaped sheets 20 partially protrude into sliding grooves formed in the outer side wall of the movable column 19.

The working principle is as follows: the vibration on the fan body 1 causes slight relative motion between the bottom plate 2 and the ground plate 3, the ground plate 3 falls relative to the bottom plate 2, the ground plate 3 pulls the control device 4, specifically, the upright post 6 pulls the inner post 13 downwards, the falling of the inner post 13 is intercepted by the clamping ring 12, the first spring 11 elastically supports the intercepting disc 10, the intercepting disc 10 controls the inner post 13, so that the first spring 11 plays a role in buffering the pulling, further buffering the vibration between the bottom plate 2 and the ground plate 3, in addition, the inner post 13 slides in a staggered way with the clamping ring 12, the annular groove on the clamping ring 12 stirs the piston post 16, the piston post 16 reciprocates to drive the air pushing plate 18, because the air flow jacks the movable post 19 in a mode of air valve 9, the air flow further pushes the air pushing plate 18 to be close to the clamping ring 12 in a process of passing through a gap between the movable post 19 and the sealing cylinder 21, and the air in the cylindrical groove where the upright post 6 is located needs to be supplemented to the square groove on the inner post 13, namely, the gas in the cylindrical groove is sucked into the main pipe cavity 14, and then is supplemented into the square groove through the branch pipe cavity 15, and in turn, the gas pushing plate 18 is far away from the clamping ring 12, so that the gas in the square groove is extruded out, the gas is injected into the main pipe cavity 14 through the branch pipe cavity 15 and then is discharged outwards, so that the negative pressure condition occurs in the upright post 6, the inner post 13 is forced to fall, the inner post 13 drives the interception disc 10 to fall, so that the first spring 11 is exerted with clamping force, the first spring 11 is deformed and contracted, the elasticity provided by the first spring 11 in the reverse direction is enhanced, namely, the vibration between the bottom plate 2 and the ground plate 3 can cause the elastic supporting effect of the first spring 11 to be enhanced.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a can slow down centrifugal fan of vibration, includes fan main part (1), the bottom of fan main part (1) is fixed with bottom plate (2), and bottom plate (2) below is provided with ground plate (3), its characterized in that: a plurality of control devices (4) which are uniformly distributed are connected between the bottom plate (2) and the ground plate (3), the control devices (4) are positioned at the edge positions of the bottom plate (2) and the ground plate (3), each control device (4) comprises a transverse cylinder (5), an upright post (6) and a buffer component (7), each transverse cylinder (5) is arranged in an arc groove formed in the ground plate (3) in a matching manner, each upright post (6) penetrates through a plate hole formed in the ground plate (3), each buffer component (7) penetrates through a plate hole formed in the bottom plate (2), the lower end of each buffer component (7) is connected with the upright post (6), the lower end of each upright post (6) is fixedly connected with the transverse cylinder (5), each buffer component (7) comprises a blocking disc (10), a first spring (11), a blocking ring (12) and an inner post (13), and a plurality of power components (8) which are uniformly distributed are arranged in the middle ring of the inner post (13), and the inner column (13) is provided with a main tube cavity (14) and a branch tube cavity (15), and an air valve (9) is arranged in the main tube cavity (14).

2. The centrifugal fan according to claim 1, wherein: the upper end fixedly connected with of inner prop (13) blocks dish (10), and the cover has screens ring (12) on inner prop (13), and screens ring (12) set up in bottom plate (2) top, and it has first spring (11) to fill up between blocking dish (10) and screens ring (12), and first spring (11) cover is on inner prop (13), a plurality of evenly distributed's ring channel has been seted up for drum and barrel's inner wall to screens ring (12) shape.

3. A centrifugal fan according to claim 1, wherein: the bottom of the inner column (13) is provided with a cylindrical groove, the upper end of the upright column (6) extends into the cylindrical groove on the inner column (13), the outer side wall of the upright column (6) is provided with a plurality of protruding sliding blocks which are uniformly distributed, and the protruding sliding blocks partially extend into sliding grooves formed in the inner wall of the cylindrical groove of the inner column (13).

4. The centrifugal fan according to claim 1, wherein: the power assembly (8) is arranged in a square groove formed in the inner column (13), one end of the branch pipe cavity (15) is connected with the bottom surface of the square groove formed in the inner column (13), the other end of the branch pipe cavity (15) is communicated with the main pipe cavity (14), one end of the main pipe cavity (14) is communicated with the cylindrical groove formed in the inner column (13), and the other end of the main pipe cavity (14) extends to the outside of the inner column (13).

5. A centrifugal fan according to claim 1, wherein: the power assembly (8) comprises a piston column (16), a second spring (17) and an air pushing plate (18), wherein the piston column (16) is fixedly connected to one end of the air pushing plate (18), the piston column (16) penetrates through the air pushing plate (18), the piston column (16) is in a cylindrical end integrally connected with a hemisphere, a cylindrical groove is formed in the end portion of the other end of the cylinder of the piston column (16), the second spring (17) is arranged in the cylindrical groove, the second spring (17) is filled between the piston column (16) and an inner column (13), and the hemisphere end of the piston column (16) is in contact with a clamping ring (12).

6. The centrifugal fan according to claim 1, wherein: be provided with two pneumatic valves (9) in main lumen (14), and two pneumatic valves (9) are located the butt joint mouth both sides of main lumen (14) and branch lumen (15) respectively, pneumatic valve (9) are including activity post (19), L section of thick bamboo (20) and sealed section of thick bamboo (21), sealed section of thick bamboo (21) are fixed on the inner wall of main lumen (14), and one side of sealed section of thick bamboo (21) is provided with activity post (19), and solid fixed ring is equipped with a plurality of evenly distributed's L section of thick bamboo (20) on sealed section of thick bamboo (21), and L section of thick bamboo (20) part is in protruding the spout of seting up on the lateral wall of activity post (19).

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