CN217401260U

CN217401260U - Sawtooth fan blade with good noise reduction effect

Info

Publication number: CN217401260U
Application number: CN202220629826.4U
Authority: CN
Inventors: 吴渊; 吕亚峰; 王军
Original assignee: Suzhou Ruibo Machinery Co ltd
Current assignee: Suzhou Ruibo Machinery Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-09-09
Anticipated expiration: 2032-03-22

Abstract

The utility model belongs to the technical field of mechanical parts, and a sawtooth fan blade with good noise reduction effect is disclosed, which comprises a fixing frame, the fan blade body has been cup jointed in the surface activity of mount, the inside fixed mounting of mount has the dead lever, movable block and flexible spring have been cup jointed in the surface from the top down activity in proper order to the surface of dead lever. The utility model discloses a set up the fan blade body, the dead lever, movable block and flexible spring, because the cooperation of movable block and dead lever, make the movable block can reciprocate along the surface of dead lever, thereby can make movable block and the contact of fan blade body, simultaneously because the movable block is made for rubber, make the fan blade body when vibrations and the sound of striking between the movable block less, this moment because flexible spring is compression state, consequently can apply an elasticity to the movable block, and then can drive the movable block and extrude the fan blade body, make the range of rocking that can reduce the fan blade body.

Description

Sawtooth fan blade with good noise reduction effect

Technical Field

The utility model belongs to the technical field of mechanical parts, specifically a sawtooth fan blade with good noise reduction effect.

Background

The fan is widely applied to electronic components of computers and the like, civil electric appliances such as hair dryers and the like, and industries and fields such as chemical engineering, machinery and the like, the main performances of the fan comprise air supply performance and acoustic performance, wherein the air supply performance is taken as the most basic performance of the fan, the larger the air supply amount is, the better the heat dissipation effect which can be achieved by the fan is, however, along with the improvement of the living standard of people, the requirements of people on the acoustic performance of the fan are increasingly increased.

At present, fan blades are usually installed in a fan, and although the existing fan blades have basic air supply performance in the actual use process, the fan blades are often affected by air resistance and vibration in the rotating process of the fan, so that the fan blades can generate noise, and further inconvenience is brought to operators.

Meanwhile, in the use process of the existing fan blade, the fan blade is usually fixed by bolts, so that the fan blade is inconvenient for operators to install, the operation efficiency of the operators is reduced, and the improvement on the fan blade is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, the utility model provides a sawtooth fan blade with good noise reduction effect has the advantage that noise reduction effect is good and be convenient for install.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sawtooth fan blade with good noise reduction effect, includes the mount, the surface activity of mount has cup jointed the fan blade body, the inside fixed mounting of mount has the dead lever, the surface from the top down activity in proper order of dead lever has cup jointed movable block and flexible spring.

As a preferred technical scheme of the utility model, the inside fixed mounting of mount has the round bar, rigid spring and movable block have been cup jointed in proper order to the surface from the top down activity of round bar, the bottom fixed mounting of movable block has the gag lever post, because the design of round bar, through the cooperation of movable block with the round bar for the surface that the round bar can be followed to the movable block reciprocates, thereby can drive the gag lever post and carry out spacingly to the fan blade body.

As a preferred technical scheme of the utility model, the quantity of fan blade body is five, five the outside of fan blade body all is equipped with the sawtooth, because the design of fan blade body, makes through the sawtooth in the fan blade body outside simultaneously and to reduce the wind speed poor, the flabellum of cockscomb structure, near the trailing edge of each flabellum, the vortex that the direction is different takes place to interfere each other, has consequently realized pneumatic noise reduction.

As an optimal technical scheme of the utility model, flexible spring's both ends respectively with mount and movable block fixed connection, movable block and fan blade body swing joint, the movable block adopts rubber to make, because flexible spring's design for the movable block has good elasticity reset performance, and flexible spring is compression state this moment, consequently can apply an elasticity to the movable block, thereby can extrude the fan blade body through the movable block, simultaneously because rubber has good elasticity and compliance, thereby can reduce the sound that takes place when movable block and the contact of fan blade body.

As a preferred technical scheme of the utility model, the top of fan blade body is equipped with the mounting hole, the fan blade body cup joints because the world of gag lever post with the gag lever post activity, through the cooperation of movable block and round bar for the movable block can drive the inside that the gag lever post got into the fan blade body.

As an optimal technical scheme of the utility model, stiff spring's both ends respectively with mount and movable block fixed connection, the outside of movable block is equipped with the lug, because stiff spring's design for the movable block has good elasticity reset performance, and stiff spring is compression state this moment, consequently can apply an elasticity to the movable block, thereby can make the cooperation between gag lever post and the fan blade body inseparabler.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up the fan blade body, the dead lever, movable block and flexible spring, because the cooperation of movable block and dead lever, make the movable block can follow the surface of dead lever and reciprocate, thereby can be so that movable block and the contact of fan blade body, simultaneously because the movable block is made for rubber, when making fan blade body vibrations and the movable block between the sound of striking less, this moment because flexible spring is compression state, consequently, can apply an elasticity to the movable block, and then can drive the movable block and extrude the fan blade body, make the range of rocking that can reduce the fan blade body, make simultaneously through the sawtooth in the fan blade body outside can reduce the wind speed poor, the flabellum of cockscomb structure, near the trailing edge of each flabellum, the different vortex of direction takes place to interfere each other, consequently, pneumatic noise reduction has been realized.

2. The utility model discloses a set up rigid spring, movable block and gag lever post, because the cooperation of movable block and round bar for the surface that the round bar can be followed to the movable block reciprocates, thereby can drive the inside that the gag lever post got into the fan blade body and carry on spacingly to the fan blade body, because rigid spring is compression state this moment, consequently can apply an elasticity to the movable block, make between gag lever post and the fan blade body cooperation inseparabler more, and then made things convenient for operating personnel to install the fan blade body.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the side of the present invention;

fig. 3 is a schematic view of a partial enlarged structure at a in fig. 2 according to the present invention;

fig. 4 is a schematic view of a disassembly structure of the fan blade of the present invention;

fig. 5 is a schematic structural diagram of the bottom of the fan blade of the present invention.

In the figure: 1. a fixed mount; 2. the fan blade body; 3. fixing the rod; 4. a movable block; 5. a flexible spring; 6. A round bar; 7. a rigid spring; 8. a movable block; 9. a limiting rod.

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 efforts all belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the utility model provides a sawtooth fan blade with good noise reduction effect, including mount 1, fan blade body 2 has been cup jointed in the surface activity of mount 1, and the inside fixed mounting of mount 1 has dead lever 3, and the surface from the top down activity in proper order of dead lever 3 has cup jointed first movable block 4 and flexible spring 5.

Wherein, the inside fixed mounting of mount 1 has round bar 6, and rigid spring 7 and second movable block 8 have been cup jointed in proper order to the activity from the top down to the surface of round bar 6, and the bottom fixed mounting of second movable block 8 has gag lever post 9, because the design of round bar 6, through the cooperation of second movable block 8 with round bar 6 for the second movable block 8 can reciprocate along the surface of round bar 6, thereby can drive gag lever post 9 and carry out spacingly to fan blade body 2.

The number of the fan blade bodies 2 is five, the outer sides of the five fan blade bodies 2 are provided with sawteeth, and due to the design of the fan blade bodies 2, the wind speed difference can be reduced through the sawteeth on the outer sides of the fan blade bodies 2, the sawteeth-shaped fan blades interfere with each other in different directions near the rear edge of each fan blade, and therefore pneumatic noise reduction is achieved.

Wherein, the both ends of flexible spring 5 respectively with

mount

1 and 4 fixed connection of first movable block, first

movable block

4 and 2 swing joint of fan blade body, first movable block 4 adopts rubber to make, because flexible spring 5's design, make first movable block 4 have good elasticity reset performance, flexible spring 5 is compression state this moment, consequently, can apply an elasticity to first movable block 4, thereby can extrude fan blade body 2 through first movable block 4, simultaneously because rubber has good elasticity and compliance, thereby can reduce the sound that takes place when first movable block 4 contacts with fan blade body 2.

Wherein, the top of fan blade body 2 is equipped with the mounting hole, and fan blade body 2 cup joints with the gag lever post 9 activity, because the world of gag lever post 9, through the cooperation of second movable block 8 with round bar 6 for second movable block 8 can drive the inside that gag lever post 9 got into fan blade body 2.

Wherein, the both ends of stiff spring 7 respectively with mount 1 and second movable block 8 fixed connection, the outside of second movable block 8 is equipped with the lug, because stiff spring 7's design for second movable block 8 has good elasticity reset performance, and stiff spring 7 is compression state this moment, consequently can apply an elasticity to second movable block 8, thereby can make the cooperation between gag lever post 9 and the fan blade body 2 inseparabler.

The utility model discloses a theory of operation and use flow:

firstly, the first movable block 4 can move up and down along the outer surface of the fixed rod 3 due to the matching of the first movable block 4 and the fixed rod 3, so that the first movable block 4 can be in contact with the fan blade body 2, meanwhile, the first movable block 4 is made of rubber, so that the sound of impact between the fan blade body 2 and the first movable block 4 is small when the fan blade body 2 vibrates, at the moment, because the flexible spring 5 is in a compression state, an elastic force can be applied to the first movable block 4, the first movable block 4 can be driven to extrude the fan blade body 2, the shaking amplitude of the fan blade body 2 can be reduced, and meanwhile, the wind speed difference can be reduced through sawteeth on the outer side of the fan blade body 2, and the sawteeth of the fan blades interfere with each other in different directions near the rear edge of each fan blade, so that the pneumatic noise reduction is realized;

Afterwards, because the cooperation of second movable block 8 and round bar 6, operating personnel can drive the surface rebound of second movable block 8 along round bar 6, make operating personnel can insert the surface of mount 1 with fan blade body 2 and drive the inside that gag lever post 9 got into fan blade body 2 spacing fan blade body 2, operating personnel can loosen second movable block 8 afterwards, this moment because rigid spring 7 is compression state, consequently, can apply an elasticity to second movable block 8, make between gag lever post 9 and the fan blade body 2 cooperation inseparabler, and then made things convenient for operating personnel to install fan blade body 2.

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.

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

1. The utility model provides a sawtooth fan blade with good noise reduction effect, includes mount (1), its characterized in that: the fan blade body (2) is sleeved on the outer surface of the fixing frame (1) in a movable mode, the fixing rod (3) is fixedly mounted inside the fixing frame (1), and a first movable block (4) and a flexible spring (5) are sequentially sleeved on the outer surface of the fixing rod (3) in a movable mode from top to bottom.

2. The sawtooth fan blade with good noise reduction effect of claim 1, wherein: the inside fixed mounting of mount (1) has round bar (6), rigid spring (7) and second movable block (8) have been cup jointed in proper order to the activity from the top down to the surface of round bar (6), the bottom fixed mounting of second movable block (8) has gag lever post (9).

3. The sawtooth fan blade with good noise reduction effect of claim 1, wherein: the fan blade comprises fan blade bodies (2), and is characterized in that the number of the fan blade bodies (2) is five, and sawteeth are arranged on the outer sides of the five fan blade bodies (2).

4. The sawtooth fan blade with good noise reduction effect of claim 1, wherein: the fan blade is characterized in that two ends of the flexible spring (5) are fixedly connected with the fixed frame (1) and the first movable block (4) respectively, the first movable block (4) is movably connected with the fan blade body (2), and the first movable block (4) is made of rubber.

5. The sawtooth fan blade with good noise reduction effect of claim 1, wherein: the top of the fan blade body (2) is provided with a mounting hole, and the fan blade body (2) is movably sleeved with a limiting rod (9).

6. The sawtooth fan blade with good noise reduction effect of claim 2, wherein: the two ends of the rigid spring (7) are respectively fixedly connected with the fixed frame (1) and the second movable block (8), and a convex block is arranged on the outer side of the second movable block (8).