Noise reduction fan convenient to overhaul

Abstract

The utility model relates to the technical field of draught fans, and discloses a noise reduction draught fan convenient to overhaul, which comprises a machine barrel shell, a driving motor and an impeller, the impeller is fixedly arranged at the output shaft part of the driving motor, the bottom end of the driving motor is fixedly provided with a limiting sliding seat, the inside of the machine barrel shell is fixedly connected with a positioning carrier, and the positioning carrier is fixedly connected with the driving motor. A limiting sliding seat is arranged on the outer side of the machine barrel shell, an assembling groove is formed in the end face of the limiting sliding seat, the assembling groove is arranged outside the top side of the positioning carrier in a sliding and sleeving mode, a sound insulation layer assembly is arranged on the outer side of the machine barrel shell, a positioning stud is in threaded connection with the limiting sliding seat, a positioning screw groove is formed in the surface of the positioning carrier, and the positioning stud is matched with the positioning screw groove. The limiting sliding seat slides outwards along the positioning carrying frame, so that the driving motor and the impeller move out of the machine barrel shell, the maintenance and overhaul operation space is conveniently increased, maintenance and overhaul work on a fan in the later period is facilitated, and the maintenance and overhaul work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, and more specifically to a noise-reducing fan which is easy to repair. Background Art

[0002] Fans are divided into axial flow fans, centrifugal fans and diagonal flow (mixed flow) fans according to the flow direction of the airflow after entering the impeller. In centrifugal fans, the airflow enters the rotating blade channel, and the gas is compressed and flows in the radial direction under the action of centrifugal force. In axial flow fans, the airflow enters the fan impeller axially and flows along the axial direction in the flow channel of the rotating blades. Compared with centrifugal fans, axial flow fans have the characteristics of large flow, small volume and low pressure head. During the use of axial flow fans, the drive motor and impeller need to be maintained and repaired regularly. Since the drive motor and impeller are both inside the barrel casing, the maintenance and repair operation space is relatively limited, which can easily bring inconvenience to the later maintenance and repair work of the fan and affect the maintenance and repair work efficiency. In view of this, we propose a noise reduction fan that is easy to maintain. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a noise reduction fan that is easy to maintain, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise reduction fan that is easy to maintain, comprising a barrel housing, a drive motor and an impeller, wherein the impeller is fixedly mounted on the output shaft of the drive motor, a limiting slide is fixedly mounted on the bottom end of the drive motor, a positioning carrier is fixedly connected to the inside of the barrel housing, an assembly groove is provided on the end surface of the limiting slide, and the assembly groove is slidably sleeved on the top side of the positioning carrier, a sound insulation layer assembly is provided on the outside of the barrel housing, a positioning stud is threadedly connected to the limiting slide, a positioning screw groove is provided on the surface of the positioning carrier, and the positioning stud is adapted to the positioning screw groove.

[0005] As a preferred technical solution of the utility model, two limiting guide rods are symmetrically fixedly connected at a side of the barrel shell away from the positioning carrier, and guide grooves are provided on both sides of the limiting slide seat, and the limiting guide rods are slidably connected to the guide grooves.

[0006] By providing the limit guide rod and the guide slot, the stability of the limit slide is ensured when it moves, and the limit guide rod can be used to limit and block the limit slide sliding outward, effectively preventing the limit slide from detaching from the positioning carrier.

[0007] As a preferred technical solution of the utility model, a limit stopper is fixedly installed on the inner side of the positioning carrier, and the cross-sectional shape of the limit stopper is rectangular.

[0008] By setting the limit stopper, the limit stopper can play a limit blocking role on the limit slide sliding inward, so as to facilitate the rapid positioning of the auxiliary limit slide on the positioning carrier.

[0009] As a preferred technical solution of the utility model, the sound insulation layer assembly includes a sound absorbing pad layer and a sound insulation aluminum sheet layer. The sound absorbing pad layer is fixedly wrapped on the outside of the barrel shell, and the sound insulation aluminum sheet layer is fixedly wrapped on the outside of the sound absorbing pad layer.

[0010] As a preferred technical solution of the utility model, the sound-absorbing cushion layer is a component made of melamine foam.

[0011] By means of such arrangement, the purpose of making the sound-absorbing cushion layer have a good sound-absorbing effect is achieved.

[0012] As a preferred technical solution of the utility model, the upper end of the positioning stud is fixedly connected with a knob block, and the cross-sectional shape of the knob block is a regular hexagon.

[0013] By arranging the knob block, the purpose of facilitating the screwing of the positioning stud is achieved.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model positions and fastens the limit slide by slidingly setting the assembly groove on the limit slide on the top side of the positioning carrier, and the positioning stud cooperates with the positioning screw groove on the surface of the positioning carrier to be threadedly connected. If the drive motor and the impeller need to be maintained and repaired, the positioning stud is positively screwed by using the knob block to disengage the positioning stud from the positioning screw groove on the surface of the positioning carrier, and the limit slide is slid outward along the positioning carrier. The limit guide rod can play a limiting blocking role on the limit slide, so that the drive motor and the impeller are moved outside the barrel housing, thereby facilitating the increase of maintenance and repair operation space, facilitating the maintenance and repair work of the fan in the later stage, and helping to improve the efficiency of maintenance and repair work.

[0016] 2. The utility model provides a sound insulation layer assembly, which is composed of a sound-absorbing pad layer and a sound-insulating aluminum sheet layer. The sound-absorbing pad layer is fixedly wrapped on the outside of the barrel shell, and the sound-insulating aluminum sheet layer is fixedly wrapped on the outside of the sound-absorbing pad layer. The sound insulation layer assembly can absorb and block the noise generated by the driving motor in the barrel shell, thereby ensuring the overall noise reduction performance of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a noise reduction fan that is easy to maintain in the utility model when in use;

[0018] Figure 2This is a schematic cross-sectional view of the structure of a noise reduction fan that is easy to maintain in the utility model when in use;

[0019] Figure 3 for Figure 2 The enlarged structural diagram of part A in the middle;

[0020] Figure 4 The utility model is a three-dimensional structural schematic diagram of a noise reduction fan which is easy to maintain during maintenance and repair.

[0021] In the figure: 1. barrel housing; 101. drive motor; 102. impeller; 103. limit guide rod; 2. limit slide; 201. assembly groove; 202. guide slide; 3. positioning carrier; 301. positioning screw groove; 4. sound insulation layer assembly; 401. sound absorbing pad layer; 402. sound insulation aluminum sheet layer; 5. positioning stud; 6. limit block; 7. knob block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 4 As shown, the utility model provides a noise reduction fan that is easy to repair, including a barrel housing 1, a driving motor 101 and an impeller 102. The impeller 102 is fixedly installed on the output shaft of the driving motor 101. The bottom end of the driving motor 101 is fixedly installed with a limit slide 2. The inside of the barrel housing 1 is fixedly connected with a positioning carrier 3. The end surface of the limit slide 2 is provided with an assembly groove 201. The assembly groove 201 is slidably sleeved on the top side of the positioning carrier 3. If it is necessary to maintain and repair the driving motor 101 and the impeller 102, the limit slide 2 is fixedly installed with the output shaft of the driving motor 101. The bottom end of the driving motor 101 is fixedly installed with a limit slide 2. The slide 2 slides outward along the positioning carrier 3, so that the drive motor 101 and the impeller 102 can be moved outside the barrel housing 1, thereby facilitating the increase of maintenance and repair operation space. A sound insulation layer assembly 4 is provided on the outer side of the barrel housing 1. A positioning stud 5 is threadedly connected to the limit slide 2. A positioning screw groove 301 is provided on the surface of the positioning carrier 3. The positioning stud 5 is adapted to the positioning screw groove 301, so that the positioning stud 5 is threadedly connected to the positioning screw groove 301 on the surface of the positioning carrier 3, thereby the limit slide 2 can be positioned and fastened.

[0024] Among them, two limiting guide rods 103 are symmetrically fixedly connected at a side position away from the positioning carrier 3 inside the barrel housing 1, and guide grooves 202 are opened on both sides of the limiting slide 2. The limiting guide rods 103 are slidably connected with the guide grooves 202 to ensure the stability of the limiting slide 2 when moving, and the limiting guide rods 103 can be used to limit and block the limiting slide 2 sliding outward, effectively preventing the limiting slide 2 from separating from the positioning carrier 3.

[0025] Among them, a limit stop block 6 is fixedly installed on the inner side of the positioning carrier 3, and the cross-sectional shape of the limit stop block 6 is rectangular. The limit stop block 6 can play a limit blocking role for the limit slide 2 sliding inward, so as to facilitate the rapid positioning of the auxiliary limit slide 2 on the positioning carrier 3.

[0026] Among them, the sound insulation layer assembly 4 includes a sound absorbing pad layer 401 and a sound insulation aluminum sheet layer 402. The sound absorbing pad layer 401 is fixedly wrapped on the outside of the barrel shell 1, and the sound insulation aluminum sheet layer 402 is fixedly wrapped on the outside of the sound absorbing pad layer 401. The sound absorbing pad layer 401 is a component made of melamine foam, which achieves the purpose of making the sound absorbing pad layer 401 have a good sound absorption effect. The sound insulation layer assembly 4 can absorb and block the noise generated by the driving motor 101 in the barrel shell 1, thereby ensuring the overall noise reduction performance of the fan.

[0027] The upper end of the positioning stud 5 is fixedly connected with a knob block 7 , and the cross-sectional shape of the knob block 7 is a regular hexagon, so that the positioning stud 5 can be easily screwed.

[0028] The working principle and use process of this utility model:

[0029] When using the fan, if it is necessary to maintain and overhaul the drive motor 101 and the impeller 102, use the knob block 7 to screw the positioning stud 5 forward so that the positioning stud 5 is disengaged from the positioning screw groove 301 on the surface of the positioning carrier 3, and the limit slide 2 is slid outward along the positioning carrier 3. The limit guide rod 103 can be used to limit and block the limit slide 2, so that the drive motor 101 and the impeller 102 are moved outside the barrel housing 1, thereby facilitating the increase of the maintenance and overhaul operation space. After the maintenance and overhaul is completed, the limit slide 2 is slid inward along the positioning carrier 3, and the limit stopper 6 can be used to limit and block the limit slide 2. The drive motor 101 and the impeller 102 are reset to the barrel housing 1, and the knob block 7 is used to screw the positioning stud 5 in the opposite direction so that the positioning stud 5 cooperates with the positioning screw groove 301 on the surface of the positioning carrier 3 to position and tighten the limit slide 2.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise-reducing fan that is easy to maintain, comprising a barrel housing (1), a drive motor (101) and an impeller (102), wherein the impeller (102) is fixedly mounted on an output shaft of the drive motor (101), and characterized in that: A limiting slide (2) is fixedly mounted on the bottom end of the driving motor (101); a positioning carrier (3) is fixedly connected to the interior of the barrel housing (1); an assembly groove (201) is provided on the end surface of the limiting slide (2); the assembly groove (201) is slidably sleeved on the top side of the positioning carrier (3); a sound insulation layer assembly (4) is provided on the outside of the barrel housing (1); a positioning stud (5) is threadedly connected to the limiting slide (2); a positioning screw groove (301) is provided on the surface of the positioning carrier (3); and the positioning stud (5) is adapted to the positioning screw groove (301).

2. The noise reduction fan that is easy to maintain according to claim 1 is characterized in that: Two limiting guide rods (103) are symmetrically fixedly connected at a position on one side of the barrel housing (1) away from the positioning carrier (3), and guide grooves (202) are provided on both sides of the limiting slide seat (2), and the limiting guide rods (103) are slidably connected to the guide grooves (202).

3. The noise-reducing fan that is easy to maintain according to claim 1 is characterized in that: A limit stopper (6) is fixedly mounted on the inner side of the positioning carrier (3), and the cross-sectional shape of the limit stopper (6) is rectangular.

4. The noise-reducing fan that is easy to maintain according to claim 1 is characterized in that: The sound insulation layer assembly (4) comprises a sound absorbing pad layer (401) and a sound insulation aluminum sheet layer (402), wherein the sound absorbing pad layer (401) is fixedly wrapped on the outside of the barrel shell (1), and the sound insulation aluminum sheet layer (402) is fixedly wrapped on the outside of the sound absorbing pad layer (401).

5. The noise-reducing fan that is easy to maintain according to claim 4 is characterized in that: The sound-absorbing cushion layer (401) is a component made of melamine foam.

6. The noise-reducing fan that is easy to maintain according to claim 1 is characterized in that: The upper end of the positioning stud (5) is fixedly connected to a knob block (7), and the cross-sectional shape of the knob block (7) is a regular hexagon.

Images