CN215719590U

CN215719590U - Shock-proof type centrifugal fan

Info

Publication number: CN215719590U
Application number: CN202121526338.2U
Authority: CN
Inventors: 李冬; 张玉龙
Original assignee: Beiren Bolefeng Xi'an Environmental Technology Co ltd
Current assignee: Beiren Bolefeng Xi'an Environmental Technology Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2022-02-01
Anticipated expiration: 2031-07-06

Abstract

The utility model belongs to the technical field of centrifugal fans, and particularly relates to a damping type centrifugal fan, which aims at the problem that the existing centrifugal fan can vibrate when in use. The utility model has simple structure and reasonable design. The simple operation can play fine bradyseism and inhale shake effect, reduces the influence that the vibration brought when normally using centrifugal fan, is fit for using widely.

Description

Shock-proof type centrifugal fan

Technical Field

The utility model relates to the technical field of centrifugal fans, in particular to a damping type centrifugal fan.

Background

The fan is a driven fluid machine, is a short form of Chinese habit for gas compression and gas delivery machines, and generally comprises a ventilator, a blower and a wind driven generator, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and induced draft of boilers and industrial furnaces and the like.

The patent with publication number CN109838393B discloses a centrifugal fan, which comprises a casing and an impeller, wherein the casing is provided with an air inlet and an air outlet respectively, a flow guide cover is fixed on the inner wall of the casing, and the circumference of the flow guide cover surrounds the air outlet side of the impeller; a flow guide opening is formed in one side, far away from the air inlet, of the flow guide cover, and a flow guide surface for guiding the air flow to move towards the flow guide opening is formed on the inner wall of the flow guide cover; the air guide sleeve is connected with a filter air cylinder through the air guide opening, a plurality of filter air holes are uniformly formed in the inner wall of the filter air cylinder, and the outer space of the filter air cylinder is communicated with the air outlet. However, when the centrifugal fan is used, vibration can be generated, and the normal use of the centrifugal fan is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a damping type centrifugal fan.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a shock-absorbing centrifugal fan comprises a base, a placing groove is arranged at the center of the top of the base, a buffer cavity is arranged on the base, the buffer cavity is positioned below the placing groove, the inner walls of the two sides of the placing groove are respectively provided with a guide groove, guide blocks are respectively arranged in the two guide grooves in a sliding way, the same damping plate is fixedly arranged between the two guide blocks, the top of the damping plate is fixedly provided with a centrifugal fan body, the bottom of the damping plate is fixedly provided with two connecting blocks and a moving column, the movable column is positioned between the two connecting blocks, the bottom end of the movable column extends into the buffer cavity and is fixedly provided with a trapezoidal pressure head, the two connecting blocks are both rotatably provided with a linking rod, the inner walls of the two sides of the placing groove are both fixedly provided with square rods, and the square rods are positioned below the guide grooves, one ends of the two square rods, which are close to each other, are fixedly provided with baffle plates, and the inner walls of the two sides of the buffer cavity are provided with grooves.

Preferably, the two square rods are sleeved with the movable blocks in a sliding mode, and the bottom ends of the two connecting rods are rotatably installed on the two movable blocks respectively.

Preferably, the square rod is movably sleeved with a first spring, and two ends of the first spring are respectively and fixedly installed on the inner wall of one side of the movable block, which is far away from the baffle plate, and one side of the placing groove.

Preferably, the top inner wall and the bottom inner wall of the groove are both provided with sliding grooves, and sliding blocks are arranged in the two sliding grooves in a sliding manner.

Preferably, fixed mounting has same buffer block between two sliders, and the buffer block is kept away from the one end of slider and is extended to the cushion chamber in, and with trapezoidal pressure head looks adaptation.

Preferably, one end of the buffer block, which is far away from the trapezoidal pressure head, is fixedly provided with one end of a second spring, and the other end of the second spring is fixedly arranged on the inner wall of one side of the groove.

In the utility model, when the damping type centrifugal fan is used, the centrifugal fan body can generate strong vibration, the damping plate can only vertically move along the guide groove due to the arrangement of the guide groove and the guide block, the damping plate can only move downwards under extrusion due to the fixed installation of the centrifugal fan body on the top of the damping plate, the connecting block and the moving column are both fixedly installed at the bottom of the damping plate, the connecting block and the moving column can be driven to move downwards, the moving block is sleeved on the square rod in a sliding manner, the moving block can only horizontally move along the square rod due to the sliding block, the connecting rod and the connecting block are connected, so that the moving block can be pushed to move towards the direction far away from the baffle plate by the connecting rod along with the downward movement of the connecting block, the first spring is compressed, the resilience of the first spring can weaken part of extrusion force, and the trapezoidal pressure head is fixedly installed at the bottom of the moving column, so can drive trapezoidal pressure head downstream, thereby make two buffer blocks of trapezoidal pressure head extrusion, because of the setting of spout and slider, make the buffer block only can horizontal migration, so can make two buffer blocks keep away from each other, and the bounce of two second springs of compression can weaken other extrusion forces, treat the back that the overdraft disappears, the initial position is got back to the shock attenuation board under the reset action of first spring and second spring, better shock attenuation effect has finally been reached. The utility model has simple structure and reasonable design. The simple operation can play fine bradyseism and inhale shake effect, reduces the influence that the vibration brought when normally using centrifugal fan, is fit for using widely.

Drawings

Fig. 1 is a schematic structural view of a damping type centrifugal fan according to the present invention;

fig. 2 is a schematic structural view of a portion a of fig. 1 of a damping type centrifugal fan according to the present invention;

fig. 3 is a schematic structural diagram of a part B of fig. 1 of a damping type centrifugal fan according to the present invention.

In the figure: the centrifugal fan comprises a base 1, a placing groove 2, a buffer cavity 3, a guide groove 4, a guide block 5, a damping plate 6, a centrifugal fan body 7, a connecting block 8, a movable column 9, a trapezoidal pressure head 10, a connecting rod 11, a square rod 12, a baffle 13, a movable block 14, a first spring 15, a groove 16, a sliding groove 17, a sliding block 18, a buffer block 19 and a second spring 20.

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.

Example one

Referring to fig. 1-3, a shock absorption type centrifugal fan comprises a base 1, wherein a placement groove 2 is formed in the center of the top of the base 1, a buffer cavity 3 is formed in the base 1, the buffer cavity 3 is located below the placement groove 2, guide grooves 4 are formed in the inner walls of the two sides of the placement groove 2, guide blocks 5 are slidably mounted in the two guide grooves 4, a shock absorption plate 6 is fixedly mounted between the two guide blocks 5, the guide grooves 4 and the guide blocks 5 are arranged so that the shock absorption plate 6 can only vertically move along the guide grooves 4, a centrifugal fan body 7 is fixedly mounted at the top of the shock absorption plate 6, two connecting blocks 8 and a moving column 9 are fixedly mounted at the bottom of the shock absorption plate 6, the moving column 9 is located between the two connecting blocks 8, the bottom end of the moving column 9 extends into the buffer cavity 3, a trapezoidal pressure head 10 is fixedly mounted on the two connecting blocks 8, and an adapter rod 11 is rotatably mounted on each connecting block 8, the equal fixed mounting in both sides inner wall of standing groove 2 has square pole 12, and square pole 12 is located the below of guide way 4, and the equal fixed mounting in one end that two square poles 12 are close to each other has baffle 13, and the both sides inner wall of cushion chamber 3 all is seted up flutedly 16.

In the utility model, the two square bars 12 are sleeved with the movable blocks 14 in a sliding manner, the bottom ends of the two connecting rods 11 are respectively rotatably installed on the two movable blocks 14, and the two movable blocks 14 can respectively horizontally slide along the two square bars 12.

According to the utility model, the square rod 12 is movably sleeved with the first spring 15, two ends of the first spring 15 are respectively and fixedly installed on the inner walls of one side of the movable block 14 far away from the baffle 13 and one side of the placing groove 2, and the elastic restoring force of the first spring 15 can push the movable block 14 to move towards the baffle 13.

In the utility model, the top inner wall and the bottom inner wall of the groove 16 are both provided with sliding grooves 17, sliding blocks 18 are slidably mounted in the two sliding grooves 17, and the two sliding blocks 18 can respectively horizontally move along the two sliding grooves 17.

In the utility model, the same buffer block 19 is fixedly arranged between the two sliding blocks 18, one end of the buffer block 19, which is far away from the sliding blocks 18, extends into the buffer cavity 3 and is matched with the trapezoidal pressure head 10, and the sliding blocks 18 are arranged, so that the buffer block 19 can only horizontally move.

In the utility model, one end of the buffer block 19, which is far away from the trapezoidal pressure head 10, is fixedly provided with one end of the second spring 20, the other end of the second spring 20 is fixedly arranged on the inner wall of one side of the groove 16, and the elastic restoring force of the second spring 20 can push the buffer block 19 to move towards the trapezoidal pressure head 10.

Example two

Referring to fig. 1-3, a shock absorption type centrifugal fan comprises a base 1, a placement groove 2 is chiseled at the top center position of the base 1, a buffer cavity 3 is chiseled on the base 1, the buffer cavity 3 is positioned below the placement groove 2, guide grooves 4 are chiseled on the inner walls of the two sides of the placement groove 2, guide blocks 5 are slidably mounted in the two guide grooves 4, the same shock absorption plate 6 is fixedly welded between the two guide blocks 5, a centrifugal fan body 7 is fixedly welded on the top of the shock absorption plate 6, two connecting blocks 8 and a moving column 9 are fixedly welded at the bottom of the shock absorption plate 6, the moving column 9 is positioned between the two connecting blocks 8, the bottom end of the moving column 9 extends into the buffer cavity 3, a trapezoidal pressure head 10 is fixedly welded, connecting rods 11 are rotatably mounted on the two connecting blocks 8, square rods 12 are fixedly welded on the inner walls of the two sides of the placement groove 2, and the square rods 12 are positioned below the guide grooves 4, the baffle 13 is fixedly welded at one end of each of the two square rods 12 close to each other, and grooves 16 are chiseled on the inner walls of the two sides of the buffer cavity 3.

In the utility model, the two square rods 12 are sleeved with the movable blocks 14 in a sliding manner, and the bottom ends of the two connecting rods 11 are respectively and rotatably arranged on the two movable blocks 14.

According to the utility model, the square rod 12 is movably sleeved with the first spring 15, and two ends of the first spring 15 are respectively fixedly welded on the inner walls of one side of the movable block 14 far away from the baffle 13 and one side of the placing groove 2.

In the utility model, sliding grooves 17 are chiseled on the top inner wall and the bottom inner wall of the groove 16, and sliding blocks 18 are slidably arranged in the two sliding grooves 17.

In the utility model, the same buffer block 19 is fixedly welded between the two sliding blocks 18, and one end of the buffer block 19, which is far away from the sliding blocks 18, extends into the buffer cavity 3 and is matched with the trapezoidal pressure head 10.

In the utility model, one end of the buffer block 19 far away from the trapezoidal pressure head 10 is fixedly welded with one end of the second spring 20, and the other end of the second spring 20 is fixedly welded on one side inner wall of the groove 16.

In the utility model, when in use, the centrifugal fan body 7 can generate strong vibration, the damping plate 6 can only vertically move along the guide groove 4 due to the arrangement of the guide groove 4 and the guide block 5, the damping plate 6 can only move downwards under extrusion due to the fixed installation of the centrifugal fan body 7 on the top of the damping plate 6, the connecting block 8 and the moving column 9 are both fixedly installed at the bottom of the damping plate 6, so the connecting block 8 and the moving column 9 can be driven to move downwards, the movable block 14 is sleeved on the square rod 12 in a sliding manner, so the movable block 14 can only horizontally move along the square rod 12, and the extrusion force of a part of the extrusion force can be weakened by the rebound force of the first spring 15 due to the connection relationship among the movable block 14, the connecting rod 11 and the connecting block 8 along with the downward movement of the connecting block 8, the movable block 14 can be pushed to move towards the direction far away from the baffle 13 by the connecting rod 11 and the first spring 15 is compressed, simultaneously because of trapezoidal pressure head 10 fixed mounting is in the bottom of removing post 9, so can drive trapezoidal pressure head 10 downstream, thereby make trapezoidal pressure head 10 extrude two buffer blocks 19, because of the setting of spout 17 and slider 18, make buffer block 19 only can horizontal migration, so can make two buffer blocks 19 keep away from each other, and the bounce of two second springs 20 of compression can weaken other extrusion force, treat that the holding down force disappears the back, initial position is got back to damper plate 6 under first spring 15 and second spring 20's reset action, better shock attenuation effect has finally been reached. The utility model has simple structure and reasonable design. The simple operation can play fine bradyseism and inhale shake effect, reduces the influence that the vibration brought when normally using centrifugal fan, is fit for using widely.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A shock absorption type centrifugal fan comprises a base (1) and is characterized in that a placing groove (2) is formed in the center of the top of the base (1), a buffer cavity (3) is formed in the base (1), the buffer cavity (3) is located below the placing groove (2), guide grooves (4) are formed in the inner walls of the two sides of the placing groove (2), guide blocks (5) are arranged in the two guide grooves (4) in a sliding mode, a same damping plate (6) is fixedly arranged between the two guide blocks (5), a centrifugal fan body (7) is fixedly arranged at the top of the damping plate (6), two connecting blocks (8) and a moving column (9) are fixedly arranged at the bottom of the damping plate (6), the moving column (9) is located between the two connecting blocks (8), the bottom end of the moving column (9) extends into the buffer cavity (3), and a trapezoidal pressure head (10) is fixedly arranged, all rotate on two connecting blocks (8) and install linking pole (11), the equal fixed mounting in both sides inner wall of standing groove (2) has square pole (12), and square pole (12) are located the below of guide way (4), the equal fixed mounting in one end that two square poles (12) are close to each other has baffle (13), and the both sides inner wall of cushion chamber (3) all is seted up fluted (16).

2. The damping type centrifugal fan according to claim 1, wherein the two square rods (12) are slidably sleeved with the movable blocks (14), and the bottom ends of the two connecting rods (11) are respectively rotatably mounted on the two movable blocks (14).

3. The damping type centrifugal fan according to claim 1, wherein the square rod (12) is movably sleeved with a first spring (15), and two ends of the first spring (15) are respectively and fixedly installed on one side of the movable block (14) far away from the baffle (13) and the inner wall of one side of the placing groove (2).

4. The damping type centrifugal fan according to claim 1, wherein the top inner wall and the bottom inner wall of the groove (16) are both provided with sliding grooves (17), and the sliding blocks (18) are slidably mounted in the two sliding grooves (17).

5. The damping type centrifugal fan according to claim 4, wherein the same buffer block (19) is fixedly installed between the two sliding blocks (18), and one end of the buffer block (19) far away from the sliding blocks (18) extends into the buffer cavity (3) and is matched with the trapezoidal pressure head (10).

6. The shock absorption type centrifugal fan as claimed in claim 5, wherein one end of the buffer block (19) far away from the trapezoidal pressure head (10) is fixedly provided with one end of a second spring (20), and the other end of the second spring (20) is fixedly arranged on one side inner wall of the groove (16).