CN219452526U

CN219452526U - Low-noise efficient mixed flow fan

Info

Publication number: CN219452526U
Application number: CN202320186916.5U
Authority: CN
Inventors: 黄晓阳
Original assignee: Wuhan Julong Fire Equipment Co ltd
Current assignee: Wuhan Julong Fire Equipment Co ltd
Priority date: 2023-02-11
Filing date: 2023-02-11
Publication date: 2023-08-01
Anticipated expiration: 2033-02-11

Abstract

The utility model provides a low-noise high-efficiency mixed flow fan, which relates to the technical field of mixed flow fans and comprises a machine body, wherein two sides of the middle part of the lower end of the machine body are fixedly connected with connecting pieces. According to the utility model, the installation groove is formed in the middle of the body of the machine body, the clamping groove is formed in the outer portion of the body of the machine body, the sound absorption plate layer capable of sliding along the sliding grooves formed in the surface of the installation groove can be installed on the surface of the installation groove, sound generated during operation of the device can be absorbed and eliminated by the sound absorption plate layer, during installation, an operator can insert the U-shaped plate along the clamping groove after the installation, the U-shaped plate can rotate until the rotating shaft is in threaded connection with the threaded holes formed in one side of the sound absorption plate layer, the U-shaped plate can limit the sound absorption plate layer in the installation groove, and the operator can conveniently take out, replace or maintain the sound absorption plate layer.

Description

Low-noise efficient mixed flow fan

Technical Field

The utility model relates to the technical field of mixed flow fans, in particular to a low-noise and high-efficiency mixed flow fan.

Background

The mixed flow fan is a fan between the axial flow fan and the centrifugal fan, the impeller of the mixed flow fan enables air to do centrifugal operation and also do axial operation, and the motion of the air in the shell mixes two motion modes of axial flow and centrifugal operation, so the mixed flow is called as mixed flow, the wind pressure coefficient of the mixed flow fan is higher than that of the axial flow fan, the flow coefficient is higher than that of the centrifugal fan, the mixed flow fan is used in occasions with wind pressure and flow being not large or small, the mixed flow fan fills the gap between the axial flow fan and the centrifugal fan, and meanwhile, the mixed flow fan has the characteristics of simplicity and convenience in installation, and is widely applied to ventilation places such as civil buildings, industrial and mining enterprises, hotels, restaurants, museums, gymnasiums and basements.

In the prior art, as disclosed in Chinese patent No. CN214330935U, a noise reduction ventilator is connected in an air inlet pipe, the left side of the air inlet pipe is connected with an air outlet pipe, sound absorbing plates which are uniformly and alternately arranged are arranged in the air outlet pipe, a guide cover is arranged on the air inlet pipe, and the shape of the guide cover is streamline; the grid cylinder is arranged in the air inlet pipe, noise is filled in a gap between the grid cylinder and the inner wall of the air inlet pipe, the airflow of the device flows through the surfaces of the streamline acoustic board and the guide cover, noise is absorbed, the noise reduction effect is achieved, noise is absorbed, the noise is absorbed by the noise reduction cotton filled in the gap between the grid cylinder and the inner wall of the air inlet pipe, vibration sound and airflow noise generated by a fan and returned are absorbed, and the acoustic board and the guide cover are made of foam aluminum alloy materials.

But among the prior art, the fan adopts the mode of filling amortization cotton to make an uproar to the fan generally, but mixed flow fan is because the motor can vibrate continually at the during operation, and mixed flow fan can lead to inside sound insulation panel of casing or amortization cotton to become flexible or break after long-time work, and the amortization cotton of filling is not hard up or breaks the back inconvenient replacement to influence the noise reduction effect of device.

Disclosure of Invention

The utility model aims to solve the problems that a fan is usually noise-reduced by adopting a mode of filling silencing cotton, but a mixed flow fan can cause loosening or cracking of a sound insulation plate or silencing cotton in a shell after long-time working due to continuous vibration of a motor when the mixed flow fan works, and the filled silencing cotton is inconvenient to replace after loosening or cracking, so that the noise reduction effect of a device is affected.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a low-noise efficient mixed flow fan, includes the fuselage body, the equal fixed connection connecting piece in both sides at fuselage body lower extreme middle part, two the even fixedly connected with sound absorption of lower extreme of connecting piece is cotton, the mounting groove has been seted up at the middle part of fuselage body inner wall, the spout has evenly been seted up on the surface of mounting groove, the surface joint of mounting groove has the sound absorption sheet layer, even fixedly connected with slide bar all around of sound absorption sheet layer internal surface, sliding connection between slide bar and the spout, the draw-in groove has all been seted up to the upper and lower below all around of fuselage body one end surface, the screw hole has evenly been seted up all around of sound absorption sheet layer one side, the equal joint in surface of draw-in groove has the U template, the middle part threaded connection of U template has the pivot, threaded connection between pivot and the screw hole.

Preferably, the rotating shaft is in threaded connection with the sound absorption plate layer.

Preferably, the lower end of the body is fixedly connected with a bracket, and the bracket is fixedly connected with the connecting piece.

Preferably, the upper end of the bracket is provided with a connecting groove, and the connecting piece is clamped with the connecting groove.

Preferably, the lower extreme fixedly connected with fixed plate of support, the supporting slot has all been seted up to the both sides at fixed plate upper end middle part.

Preferably, the support groove is fixedly connected with the bracket.

Preferably, the four corners of the fixing plate are provided with assembly holes.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the utility model, the installation groove is formed in the middle of the body of the machine body, the clamping groove is formed in the outer portion of the body of the machine body, the sound absorption plate layer capable of sliding along the sliding groove formed in the surface of the installation groove can be installed on the surface of the installation groove, sound generated during operation of the device can be absorbed and eliminated by the sound absorption plate layer, during installation, an operator can insert the U-shaped plate along the clamping groove after the installation, the U-shaped plate can rotate until the rotating shaft is in threaded connection with the threaded holes formed in one side of the sound absorption plate layer, the U-shaped plate can limit the sound absorption plate layer in the installation groove, the operator can conveniently take out, replace or maintain the sound absorption plate layer, the problem that after long-time operation of a mixed flow fan, the sound absorption cotton in the shell is loosened or broken is inconvenient to replace, and the noise reduction effect of the device is affected is solved.

2. In the utility model, the sound absorption cotton is arranged at the connection part of the connecting piece and the lower bracket, and can absorb and eliminate the noise generated by the shaking of the body of the high-efficiency mixed flow fan caused by the vibration of the motor, thereby playing the roles of silencing and reducing noise.

Drawings

FIG. 1 is a schematic perspective view of a low-noise and high-efficiency mixed flow fan;

FIG. 2 is a schematic diagram of an explosion structure of a low-noise and high-efficiency mixed-flow fan according to the present utility model;

FIG. 3 is a schematic diagram of an explosion structure of a low-noise high-efficiency mixed flow fan according to the present utility model;

fig. 4 is a schematic diagram of a bracket part structure of a low-noise and high-efficiency mixed flow fan.

Legend description:

1. a fuselage body; 11. a connecting piece; 12. sound absorbing cotton; 13. a bracket; 14. a fixing plate; 15. a support groove; 16. a connecting groove; 18. a fitting hole; 2. a mounting groove; 21. a chute; 22. a clamping groove; 23. a sound absorbing panel layer; 24. a slide bar; 25. a threaded hole; 26. a U-shaped plate; 27. a rotating shaft.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

In the embodiment 1, as shown in fig. 2, fig. 3 and fig. 4, the utility model provides a low-noise efficient mixed-flow fan, which comprises a main body 1, two sides in the middle of the lower end of the main body 1 are fixedly connected with connecting pieces 11, the lower ends of the two connecting pieces 11 are uniformly and fixedly connected with sound-absorbing cotton 12, a mounting groove 2 is formed in the middle of the inner wall of the main body 1, a sliding chute 21 is uniformly formed in the surface of the mounting groove 2, a sound-absorbing slab layer 23 is clamped on the surface of the mounting groove 2, slide bars 24 are uniformly and fixedly connected around the inner surface of the sound-absorbing slab layer 23, sliding connection is carried out between the slide bars 24 and the sliding chute 21, clamping grooves 22 are formed in the upper and lower parts around the outer surface of one end of the main body 1, threaded holes 25 are uniformly formed in the periphery of one side of the sound-absorbing slab layer 23, U-shaped plates 26 are uniformly clamped on the surface of the clamping grooves 22, a rotating shaft 27 is connected between the rotating shafts 27 and the threaded holes 25, mounting grooves 2 are formed in the middle of the main body 1, the mounting groove 2 is provided with mounting grooves 22, the outer side of the main body 1 is provided with mounting grooves 22, the mounting groove 22 is uniformly, the sliding slab layer 21 can be clamped on the outer surface of the main body 1, the sliding slab layer 2 is provided with the mounting groove 21, the sliding slab layer 21 can be clamped on the surface of the mounting groove 2, the sliding slab layer 23 can be pulled out along the surface of the mounting groove 23, the sliding slab layer 23, the sliding device can be aligned with the sliding slab layer 23, the sliding plate 23 can be replaced, and the rotating along the rotating shafts can be conveniently, and the rotating shafts 23, the rotating shafts can be conveniently, and can be replaced, and can be conveniently, and can be replaced by the rotating along the rotating shafts 23, and the rotating shaft 23.

As shown in fig. 3 and 4, the rotary shaft 27 is screwed with the sound absorbing panel layer 23.

As shown in fig. 1 and 2, the lower end of the body 1 is fixedly connected with a bracket 13, the bracket 13 is fixedly connected with the connecting piece 11, and the bracket 13 can support the body 1 away from the ground, so that unnecessary abrasion is reduced.

As shown in fig. 1 and 2, the upper end of the bracket 13 is provided with a connecting groove 16, the connecting piece 11 is clamped with the connecting groove 16, and the connecting groove 16 can increase the connection relationship between the bracket 13 and the connecting piece 11, so that the body 1 is more stable.

As shown in fig. 1 and 2, the fixing plate 14 is fixedly connected to the lower end of the bracket 13, and the supporting grooves 15 are formed on two sides of the middle part of the upper end of the fixing plate 14, so that the stability of connection between the rest fixing plates 14 of the bracket 13 can be increased by forming the supporting grooves 15.

As shown in fig. 1 and 2, the support groove 15 is fixedly connected with the bracket 13.

As shown in fig. 1 and 2, the four corners of the fixing plate 14 are provided with assembly holes 18, and the preset assembly holes 18 can make the efficiency of the operator in installing the mixed-flow fan higher.

The application method and the working principle of the device are as follows: through seting up mounting groove 2 in the middle part of fuselage body 1 and opening draw-in groove 22 in the outside of fuselage body 1, the surface energy of mounting groove 2 installs the gliding sound absorption lamina 23 of spout 21 that can be setted up along mounting groove 2 surface, sound absorption lamina 23 can adsorb and eliminate the sound that produces when the device is operated, during the installation, only need aim at the spout 21 promotion that mounting groove 2 surface was setted up with a plurality of slide bar 24 that sound absorption lamina 23 internal surface set up can accomplish the installation, the operator can also be with U template 26 along draw-in groove 22 access after the installation, rotate pivot 27 until pivot 27 and the screw hole 25 threaded connection of seting up on one side of sound absorption lamina 23 can, U template 26 can carry out spacingly to the sound absorption lamina 23 of mounting groove 2 inside, can also make things convenient for the operator to take out change or maintain sound absorption lamina 23, still set up sound absorption lamina 12 through the place that is connected with below support 13 at connecting piece 11, the fuselage that this high-efficient mixed flow fan that leads to because the motor vibration rocks and eliminates, thereby play the effect of noise reduction, after the mixed flow fan after long-time work, can not only lead to the problem of making an uproar or break after the mixed flow fan, the vibration reduction device that can not crack or break easily.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims

1. The utility model provides a high-efficient mixed flow fan of low noise, includes fuselage body (1), its characterized in that: the utility model discloses a sound absorbing device, including fuselage body (1), connecting piece (11) are evenly fixed connection in both sides at fuselage body (1) lower extreme middle part, two evenly fixedly connected with sound absorbing cotton (12) of lower extreme of connecting piece (11), mounting groove (2) have been seted up at the middle part of fuselage body (1) inner wall, spout (21) have evenly been seted up on the surface of mounting groove (2), the surface joint of mounting groove (2) has sound absorbing sheet layer (23), evenly fixedly connected with slide bar (24) all around of sound absorbing sheet layer (23) internal surface, sliding connection between slide bar (24) and spout (21), draw-in groove (22) have all been seted up to the upper and lower below all around of fuselage body (1) one end surface, threaded hole (25) have evenly been seted up all around sound absorbing sheet layer (23) one side, the equal joint in surface of draw-in groove (22) has U template (26), the middle part threaded connection of U template (26) has pivot (27), threaded connection between pivot (27) and threaded hole (25).

2. The low-noise and high-efficiency mixed flow fan as claimed in claim 1, wherein: the rotating shaft (27) is in threaded connection with the sound absorption plate layer (23).

3. The low-noise and high-efficiency mixed flow fan as claimed in claim 1, wherein: the lower end of the machine body (1) is fixedly connected with a bracket (13), and the bracket (13) is fixedly connected with the connecting piece (11).

4. A low noise, efficient mixed flow fan as defined in claim 3, wherein: the upper end of the bracket (13) is provided with a connecting groove (16), and the connecting piece (11) is clamped with the connecting groove (16).

5. A low noise, efficient mixed flow fan as defined in claim 3, wherein: the lower extreme fixedly connected with fixed plate (14) of support (13), support groove (15) have all been seted up to both sides at fixed plate (14) upper end middle part.

6. The low-noise and high-efficiency mixed flow fan as claimed in claim 5, wherein: the supporting groove (15) is fixedly connected with the bracket (13).

7. The low-noise and high-efficiency mixed flow fan as claimed in claim 5, wherein: four corners of the fixing plate (14) are provided with assembly holes (18).