CN209959510U

CN209959510U - Mute energy-saving fan

Info

Publication number: CN209959510U
Application number: CN201920452433.9U
Authority: CN
Inventors: 毛金铎; 毛翔宇; 尚昭
Original assignee: Hebei Punade Fan Manufacturing Co Ltd
Current assignee: Hebei Punade Fan Manufacturing Co Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-01-17
Anticipated expiration: 2029-04-04

Abstract

The utility model relates to a fan technical field, and a mute type energy-conserving fan is disclosed, including L type base, the top fixed mounting of L type base has the motor, the fixed cup of output of motor has connect the pivot, one side of L type base is passed through screw swing joint and is had fan shell, the cavity has been seted up to fan shell's inside, and the inside fixed mounting of fan shell left side wall has the bearing, the one end that the motor was kept away from in the pivot runs through L type base and fan shell in proper order and extends to the inside of fan shell, the pivot is located the inside one end of fan shell and has fixed cup jointed ratchet and impeller in proper order. This energy-conserving fan of hush air through the combined action of ratchet and pawl for the reversal can not take place for the reversal rotation can only be rotated in the forward to the pivot, thereby has avoided the pivot reversal to drive the impeller reversal and has makeed the output shaft of motor to take place the reversal, makes fan and motor receive the damage, has reduced the life of motor and fan, has increased the cost.

Description

Mute energy-saving fan

Technical Field

The utility model relates to a fan technical field specifically is a mute type energy-conserving fan.

Background

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

When current fan just started or the fan abnormally shut down, because not set up anti-contrarotation structure and lead to the pivot to take place the antiport, fan and motor are fixed and cup joint, when the inside of fan takes place the antiport, not only can make the motor receive the impeller when damaging also can and receive the damage to the life of fan and motor has been reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a mute type energy-conserving fan possesses the advantage that prevents the impeller reversal, has solved current impeller and has easily taken place the reversal and lead to motor and fan impaired, has reduced fan and motor life's problem.

The utility model provides a following technical scheme: a mute type energy-saving fan comprises an L-shaped base, wherein a motor is fixedly installed at the top of the L-shaped base, a rotating shaft is fixedly sleeved at the output end of the motor, one side of the L-shaped base is movably connected with a fan shell through a screw, a cavity is formed in the fan shell, a bearing is fixedly installed in the left side wall of the fan shell, one end, away from the motor, of the rotating shaft sequentially penetrates through the L-shaped base and the fan shell and extends to the inside of the fan shell, a ratchet wheel and an impeller are sequentially fixedly sleeved at one end, located in the fan shell, of the rotating shaft, an air outlet is formed in one side of the fan shell, an air outlet plate which penetrates through and extends to the outside of the fan shell is movably installed in the air outlet through a screw, an air inlet is formed in the top of the fan shell, the bottom of the mounting block is hinged with a pawl, an annular spring is fixedly mounted inside the cavity, and connecting blocks are fixedly connected to two ends of the annular spring.

Preferably, the fan housing is composed of two parts and is connected into a complete fan housing through bolts.

Preferably, the inside of the bearing is fixedly sleeved with one end of the rotating shaft far away from the motor.

Preferably, the ratchet wheel is located right below the pawl, the outer edge of the ratchet wheel is movably connected with the outer edge of the pawl, and gaps exist between the two sides of the ratchet wheel and one side of the cavity and one side of the impeller respectively.

Preferably, one side of one of the connecting blocks, which is far away from the annular spring, is fixedly connected with the inner wall of the cavity, and the other side of the connecting block, which is far away from the annular spring, is fixedly connected with the top of the pawl.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this energy-conserving fan of hush air through the combined action of ratchet and pawl for the reversal can not take place for the reversal rotation can only be rotated in the forward to the pivot, thereby has avoided the pivot reversal to drive the impeller reversal and has makeed the output shaft of motor to take place the reversal, makes fan and motor receive the damage, has reduced the life of motor and fan, has increased the cost.

2. This energy-conserving fan of hush air is through designing into fan shell two halves formula simultaneously through bolted connection, when the inside of fan or impeller broke down, was convenient for dismantle the fan shell and was examined and maintained the fan, has improved the convenience that the fan overhauld.

Drawings

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

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

FIG. 3 is a schematic view of the blower housing of the present invention;

fig. 4 is a right-side view schematic diagram of the structure fan housing of the utility model.

In the figure: 1. an L-shaped base; 2. a motor; 3. a rotating shaft; 4. a fan housing; 5. a cavity; 6. a bearing; 7. a ratchet wheel; 8. an impeller; 9. an air outlet; 10. an air outlet plate; 11. an air inlet; 12. mounting blocks; 13. a pawl; 14. an annular spring; 15. and (4) connecting the blocks.

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. 1-4, a mute energy-saving fan comprises an L-shaped base 1, a motor 2 is fixedly installed on the top of the L-shaped base 1, a rotating shaft 3 is fixedly sleeved on the output end of the motor 2, a fan housing 4 is movably connected to one side of the L-shaped base 1 through a screw, the fan housing 4 is composed of two parts and is connected into a complete fan housing 4 through a bolt, the fan housing 4 is designed into two halves and is simultaneously connected through the bolt, when the inside of the fan or an impeller 8 fails, the fan housing 4 is convenient to disassemble for checking and maintaining the fan, the convenience in use of the fan is improved, a cavity 5 is formed in the inside of the fan housing 4, a bearing 6 is fixedly installed in the inside of the left side wall of the fan housing 4, the inside of the bearing 6 is fixedly sleeved with one end of the rotating shaft 3 far away from the motor 2, and under the action of the bearing, the rotating friction force between the rotating shaft 3 and the fan shell 4 is reduced, the rotating shaft 3 and the fan shell 4 are fixedly connected through the bearing 6, the impeller 8 is prevented from radially shaking when the fan works outside, the stability of the fan during working is improved, one end of the rotating shaft 3, which is far away from the motor 2, sequentially penetrates through the L-shaped base 1 and the fan shell 4 and extends into the fan shell 4, the ratchet 7 and the impeller 8 are sequentially and fixedly sleeved at one end of the rotating shaft 3, which is positioned inside the fan shell 4, the ratchet 7 is positioned under the pawl 13, the outer edge of the ratchet 7 is movably connected with the outer edge of the pawl 13, gaps exist between two sides of the ratchet 7 and one side of the cavity 5 and one side of the impeller 8 respectively, the rotating shaft 3 can only rotate in the forward direction without reverse rotation under the combined action of the ratchet 7 and the pawl 13, and the phenomenon that the rotating shaft 3 reversely rotates to drive the impeller 8 to reversely rotate so as to, the fan and the motor 2 are damaged, the service lives of the motor 2 and the fan are shortened, the cost is increased, an air outlet 9 is formed in one side of a fan shell 4, an air outlet plate 10 penetrating and extending to the outside of the fan shell 4 is fixedly and movably mounted in the air outlet 9 through screws, an air inlet 11 is formed in the top of the fan shell 4, a mounting block 12 is fixedly mounted at the top of an inner cavity of the cavity 5, a pawl 13 is hinged to the bottom of the mounting block 12, an annular spring 14 is fixedly mounted in the cavity 5, connecting blocks 15 are fixedly connected to two ends of the annular spring 14, one side, far away from the annular spring 14, of one connecting block 15 is fixedly connected with the inner wall of the cavity 5, one side, far away from the annular spring 14, of the other connecting block 15 is fixedly connected with the top of the pawl 13, the annular spring 14 is fixedly mounted in the cavity 5 through the effect of the connecting blocks 15, the reliability of the whole device is improved.

According to the working principle, firstly, when the motor 2 works, the rotating shaft 3 is driven to rotate, the rotating shaft 3 rotates to enable the impeller 8 to rotate, the fan works, the pawl 13 is always in contact with the ratchet wheel 7 under the action of the annular spring 14, and the rotating shaft 3 only can rotate in the forward direction and cannot rotate in the reverse direction due to the action of the ratchet wheel 7 and the pawl 13.

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 mute type energy-conserving fan, includes L type base (1), its characterized in that: the top fixed mounting of L type base (1) has motor (2), the fixed cover of output of motor (2) has connect pivot (3), screw swing joint fan shell (4) is passed through to one side of L type base (1), cavity (5) have been seted up to the inside of fan shell (4), and the inside fixed mounting of fan shell (4) left side wall has bearing (6), the one end that motor (2) were kept away from in pivot (3) runs through L type base (1) and fan shell (4) in proper order and extends to the inside of fan shell (4), ratchet (7) and impeller (8) have been cup jointed in proper order to the one end that pivot (3) are located fan shell (4) inside fixed cup joint, air outlet (9) have been seted up to one side of fan shell (4), the inside of air outlet (9) has air-out board (10) that runs through and extend to fan shell (4) outside through screw fixed movable mounting, air intake (11) have been seted up at the top of fan shell (4), the top fixed mounting of cavity (5) inner chamber has installation piece (12), installation piece (12) bottom articulates there is pawl (13), the inside fixed mounting of cavity (5) has annular spring (14), the equal fixedly connected with connecting block (15) in both ends of annular spring (14).

2. The mute type energy-saving fan according to claim 1, characterized in that: the fan shell (4) is composed of two parts and is connected into a complete fan shell (4) through bolts.

3. The mute type energy-saving fan according to claim 1, characterized in that: the inside of the bearing (6) is fixedly sleeved with one end of the rotating shaft (3) far away from the motor (2).

4. The mute type energy-saving fan according to claim 1, characterized in that: the ratchet wheel (7) is located right below the pawl (13), the outer edge of the ratchet wheel (7) is movably connected with the outer edge of the pawl (13), and gaps exist between two sides of the ratchet wheel (7) and one side of the cavity (5) and one side of the impeller (8) respectively.

5. The mute type energy-saving fan according to claim 1, characterized in that: one side, far away from the annular spring (14), of one connecting block (15) is fixedly connected with the inner wall of the cavity (5), and the other side, far away from the annular spring (14), of the other connecting block (15) is fixedly connected with the top of the pawl (13).