Silencing type pipeline fan

Abstract

The utility model relates to the technical field of pipeline fan equipment, in particular to a silencing type pipeline fan, which is characterized in that fan blades are arranged in a shell, a mounting frame is arranged in the shell, the fan blades are rotationally arranged on the mounting frame through a rotating shaft, a fixing frame is fixedly arranged on the lower inner wall of the shell, and a driving shaft is rotationally arranged on the fixing frame through a bearing; the hexagonal transmission rod is fixedly arranged on the driving shaft, the inner hexagonal sleeve is fixedly arranged on a rotating shaft of the fan blades, and the hexagonal transmission rod is movably sleeved with the inner hexagonal sleeve; according to the pipeline fan, the fan blade structure is installed in a suspended mode, and the motor driving structure is installed outside the whole fan structure, so that noise generated by fan blades and a motor in the working process of the pipeline fan can be reduced, and the purpose of noise reduction and noise reduction is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline fan equipment, in particular to a silencer-type pipeline fan. Background Art

[0002] When the duct fan is working, the motor drives the fan blades to rotate to promote air flow, thereby generating flowing wind. However, when most duct fans are working, the motor operation and fan blade rotation will generate vibration, and this vibration will emit a large low-frequency noise when resonating with the duct fan casing and external mounting structure, making the duct fan use environment noisy. For environments where noise needs to be reduced during use, the conventional structure of the duct fan structure needs to be improved to reduce the noise generated during the fan operation. To this end, it is critical to improve the existing duct fan structure and reduce the vibration noise generated during the operation of the equipment. Utility Model Content

[0003] The purpose of the utility model is to address the defects and shortcomings of the existing technology and provide a silencer type duct fan, which can reduce the noise generated by the vibration of the fan blades and motor during the operation of the duct fan by installing a suspended fan blade structure and installing the motor drive structure on the outside of the overall fan structure, thereby achieving the purpose of noise reduction and silencing.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model comprises a shell and fan blades, wherein the fan blades are arranged inside the shell, and further comprises:

[0006] A mounting frame, wherein the mounting frame is arranged in the housing, and the fan blades are rotated on the mounting frame through a rotating shaft;

[0007] A fixing frame, wherein the fixing frame is fixedly arranged on the lower inner wall of the shell;

[0008] A drive shaft, wherein the drive shaft is rotatably mounted on the fixed frame via a bearing;

[0009] A hexagonal transmission rod, wherein the hexagonal transmission rod is fixedly arranged on the drive shaft;

[0010] The hexagonal sleeve is fixedly arranged on the rotating shaft of the fan blade, and the hexagonal sleeve is movably sleeved on the hexagonal transmission rod.

[0011] Preferably, a transmission shaft is rotated on the fixed frame through a bearing, and the lower end of the transmission shaft is rotated and passed through the lower side plate of the shell through a bearing, a driving motor is fixedly installed on the lower side wall of the shell, the output shaft of the driving motor is connected to the transmission shaft, and the upper end of the transmission shaft is connected to the driving shaft through a bevel gear set.

[0012] Preferably, a support frame is movably provided in the shell, and air dampers are rotatably provided on the four corners of the inner wall of the support frame through rotating shafts, and the output shaft of the air damper is rotatably provided on the outer wall of the mounting frame through the rotating shaft.

[0013] Preferably, a support seat is fixedly provided in the shell, and the front side of the support seat is movably supported on the rear side of the support frame. A limiting seat is provided in the shell, and the rear side of the limiting seat is movably supported on the front side of the support frame.

[0014] Preferably, a connecting sleeve is fixedly provided on the front side of the limit seat, and the connecting sleeve is movably provided on the front port of the shell, a positioning groove is provided on the connecting sleeve, and the rear end opening of the positioning groove is provided, a threaded rod is fixedly provided on the outer wall of the shell, and the threaded rod is movably inserted into the positioning groove, a positioning sleeve is movably provided on the threaded rod, and the positioning sleeve is movably inserted into the positioning groove, a nut is screwed on the threaded rod through a thread, and the nut is abutted against the positioning sleeve.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By installing a suspended fan blade structure and installing the motor drive structure outside the overall fan structure, the noise generated by the fan blades and motor during operation of the duct fan can be reduced, thereby achieving the purpose of noise reduction and silencing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 yes Figure 1 Try to make the next volume.

[0019] Figure 3 yes Figure 1 Try to do it from the back.

[0020] Figure 4 It is a structural schematic diagram of the limit seat in the utility model.

[0021] Figure 5 It is a structural schematic diagram of the transmission shaft and the drive shaft in the utility model.

[0022] Description of reference numerals:

[0023] Shell 1, fan blades 2, mounting bracket 3, fixing bracket 4, drive shaft 5, hexagonal transmission rod 6, hexagonal socket 7, transmission shaft 8, drive motor 9, support bracket 10, air damper 11, support seat 12, limit seat 13, connecting sleeve 14, positioning groove 15, threaded rod 16, positioning sleeve 17, nut 18. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0025] like Figure 1-5 As shown, this specific implementation adopts the following technical solutions:

[0026] The utility model comprises a housing 1 and a fan blade 2, wherein the fan blade 2 is arranged inside the housing 1, and further comprises:

[0027] The support frame 10 is arranged inside the housing 1;

[0028] Mounting frame 3, the mounting frame 3 is arranged in the support frame 10, and the fan blade 2 is rotated on the mounting frame 3 through the rotating shaft;

[0029] Air dampers 11, there are several air dampers 11, and they are rotated on the blind corner of the inner wall of the support frame 10 through a rotating shaft, and the output shaft of the air damper 11 is rotated on the outer wall of the mounting frame 3 through a rotating shaft;

[0030] The support base 12 is fixedly mounted on the inner wall of the housing 1 and is disposed against the rear side of the support frame 10;

[0031] The limiting seat 13 is movably inserted into the housing 1 and is disposed against the front side of the support frame 10;

[0032] The connecting sleeve 14 is fixedly arranged on the front end of the limiting seat 13, and the connecting sleeve 14 is movably sleeved on the front end of the housing 1;

[0033] The threaded rod 16 is fixedly provided on the outer wall of the housing 1. The connecting sleeve 14 is provided with a positioning groove 15, and the positioning groove 15 is open. The threaded rod 16 is inserted into the positioning groove 15.

[0034] The positioning sleeve 17 is movably mounted on the threaded rod 16 and inserted into the positioning groove 15;

[0035] The nut 18 is screwed onto the threaded rod 16 and is seated against the positioning sleeve 17;

[0036] A fixing frame 4, wherein the fixing frame 4 is fixedly arranged on the lower inner wall of the housing 1;

[0037] A drive shaft 5, wherein the drive shaft 5 is rotatably mounted on the fixing frame 4 via a bearing;

[0038] A hexagonal transmission rod 6, wherein the hexagonal transmission rod 6 is fixedly arranged on the drive shaft 5;

[0039] The hexagonal sleeve 7 is fixed on the rotating shaft of the fan blade 2 and is movably mounted on the hexagonal transmission rod 6;

[0040] The transmission shaft 8 is screwed on the fixed frame 4 through a bearing, and the lower end of the transmission shaft 8 is screwed through the bottom plate of the housing 1 through a bearing;

[0041] The drive motor 9 is fixedly arranged on the lower side wall of the shell 1, and the output shaft of the drive motor 9 is connected to the lower end of the transmission shaft 8, and the upper end of the transmission shaft 8 is connected to the drive shaft 5 through the bevel gear set.

[0042] When using this device, the fan blade 2 is supported by the mounting frame 3, and the mounting frame 3 is suspended on the support frame 10 through the air damper 11. The support frame 10 is clamped and installed in the shell 1 through the support seat 12 and the limit seat 13, thereby realizing the suspension installation of the fan blade 2 in the shell 1, and the fan blade 2 is connected to the hexagonal transmission rod 6 on the drive shaft 5 through the hexagonal sleeve 7, and the transmission shaft 8 is driven by the drive motor 9 to rotate, and the transmission shaft 8 drives the drive shaft 5 to rotate and then drives the fan blade 2 to rotate. The vibration generated during the rotation of the fan blade 2 is shock-absorbing and buffered by the suspended air damper 11, thereby reducing the noise generated by the working vibration of the fan blade 2; when installing the support frame 10, remove the support frame 10 from the shell 1 is sent into the shell 1, and the hexagonal sleeve 7 on the fan blade 2 is sleeved on the hexagonal transmission rod 6 on the drive shaft 5, and the support frame 10 is against the fixed seat 12, then the limiting seat 13 is inserted into the shell 1 from the front port of the shell 1, and the connecting sleeve 14 is sleeved on the front port of the shell 1, so that the positioning groove 15 on the connecting sleeve 14 is stuck on the threaded rod 16 through the opening of the positioning groove 15, and then the limiting seat 13 is against the support frame 10, then the positioning sleeve 17 is sleeved on the threaded rod 16 and the positioning sleeve 17 is inserted into the positioning groove 15, then the nut 18 is tightened on the threaded rod 16 and the nut 18 locks the positioning sleeve 17, and the installation of the fan blade 2 is completed.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] This device is achieved by arranging a movable and detachable support frame 10 in the shell 1, and clamping and fixing the support frame 10 through a fixing seat 12 and a limit seat 13, and then suspending the mounting frame 3 through an air damper 11, installing the fan blade 2 on the mounting frame 3, and realizing the transmission drive between the drive shaft 5 and the fan blade 2 through the hexagonal transmission rod 6 and the hexagonal socket 7, thereby reducing the noise generated by the vibration of the fan blade 2 during operation.

[0045] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A silent duct fan, comprising a housing (1) and fan blades (2), wherein the fan blades (2) are arranged inside the housing (1); characterized in that: It also contains: A mounting frame (3), wherein the mounting frame (3) is arranged in the housing (1), and the fan blade (2) is rotated on the mounting frame (3) via a rotating shaft; A fixing frame (4), wherein the fixing frame (4) is fixedly arranged on the lower inner wall of the housing (1); A drive shaft (5), wherein the drive shaft (5) is rotatably mounted on the fixed frame (4) via a bearing; A hexagonal transmission rod (6), wherein the hexagonal transmission rod (6) is fixedly arranged on the drive shaft (5); The hexagonal sleeve (7) is fixedly arranged on the rotating shaft of the fan blade (2), and the hexagonal sleeve (7) is movably sleeved on the hexagonal transmission rod (6).

2. A silent duct fan according to claim 1, characterized in that: A transmission shaft (8) is rotatably mounted on the fixing frame (4) via a bearing, and the lower end of the transmission shaft (8) is rotatably mounted on the lower side plate of the housing (1) via a bearing. A drive motor (9) is fixedly mounted on the lower side wall of the housing (1), and the output shaft of the drive motor (9) is connected to the transmission shaft (8) in a transmission manner. The upper end of the transmission shaft (8) is connected to the drive shaft (5) in a transmission manner via a bevel gear set.

3. A silent duct fan according to claim 2, characterized in that: A support frame (10) is movably provided in the housing (1), and air dampers (11) are rotatably provided on the four corners of the inner wall of the support frame (10) via rotating shafts, and the output shaft of the air damper (11) is rotatably provided on the outer wall of the mounting frame (3) via the rotating shaft.

4. A silent duct fan according to claim 3, characterized in that: A support seat (12) is fixedly provided in the shell (1), and the front side of the support seat (12) is movably supported on the rear side of the support frame (10); a limiting seat (13) is provided in the shell (1), and the rear side of the limiting seat (13) is movably supported on the front side of the support frame (10).

5. The sound-absorbing duct fan according to claim 4, characterized in that: A connecting sleeve (14) is fixedly provided on the front side of the limiting seat (13), and the connecting sleeve (14) is movably sleeved on the front end of the shell (1), a positioning groove (15) is provided on the connecting sleeve (14), and the rear end of the positioning groove (15) is opened, a threaded rod (16) is fixedly provided on the outer wall of the shell (1), and the threaded rod (16) is movably inserted into the positioning groove (15), a positioning sleeve (17) is movably sleeved on the threaded rod (16), and the positioning sleeve (17) is movably inserted into the positioning groove (15), a nut (18) is screwed on the threaded rod (16) through a thread, and the nut (18) is abutted against the positioning sleeve (17).

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