Industrial ventilator with silencing mechanism

Abstract

The utility model belongs to the technical field of fans, and discloses an industrial ventilator with a silencing mechanism, which comprises a support plate, two ends of the support plate are connected with positioning seats in a clamping manner, the support plate is fixed with the positioning seats through bolts, a first sleeve is arranged at the upper end of the middle of the support plate, and a second sleeve is arranged at the lower end of the middle of the support plate. Protective covers are connected to the two ends of the first sleeve and the two ends of the second sleeve through bolts, a power motor is installed in the middle of the supporting plate, fan blades are connected to the shaft end of the power motor, splicing grooves are formed in the two sides of the supporting plate, and splicing plates are fixed to the two sides of the first sleeve and the two sides of the second sleeve correspondingly. According to the industrial ventilator with the noise reduction mechanism, the sound absorption cotton structure is arranged, multiple sets of positioning strips are used for installation, noise generated during operation of the ventilator can be conveniently absorbed and reduced, the fan shell is formed by clamping the first sleeve and the second sleeve, the fan shell can be conveniently and rapidly disassembled and assembled, and the convenience of replacement of the sound absorption cotton is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to an industrial ventilator with a silencer mechanism. Background Art

[0002] Industrial fans are widely used for ventilation and high-temperature smoke exhaust in tunnels, underground garages, high-end civil buildings, metallurgical plants, factories, and mines, among other applications. They primarily consist of an impeller, casing, inlet collector, guide vanes, and motor. While industrial fans offer high speeds and high airflow, they also generate considerable noise, which is particularly noticeable when used inside tunnels and mines.

[0003] There is a new type of industrial fan for mines with Chinese patent application number CN201921837550.3, which includes a fan housing, a bucket tube connected to the left end of the bucket tube, an air outlet pipe connected to the left end of the fan housing, an air inlet pipe fixedly connected to the right end of the fan housing, and fan blades provided in the fan housing, which are fixedly connected to a turntable, the middle of the turntable is connected by a rotating shaft, the other end of the rotating shaft is connected to a driven wheel through a bearing, the outer side of the bearing is fixedly connected to the inner wall of the fan housing through several connections, a chassis is provided at the upper end of the fan housing, and a motor is provided in the chassis; however, the existing industrial fan does not have a silencer structure when in use, and will generate loud noise when the machine is running. Working in a high-noise environment for a long time will cause hearing damage to people.

[0004] Therefore, we propose an industrial ventilator with a silencer mechanism to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide an industrial ventilator with a silencer mechanism to solve the problem in the background art that the existing industrial fans make a lot of noise during operation, which can easily cause hearing damage when people are in a high-noise environment for a long time.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an industrial ventilator with a silencer mechanism, comprising a support plate:

[0007] The two ends of the support plate are clamped and connected with the positioning seats, and the support plate and the positioning seats are fixed with bolts. The upper end of the middle part of the support plate is provided with a first sleeve, and the lower end of the middle part of the support plate is provided with a second sleeve, and the two ends of the first sleeve and the second sleeve are bolted to a protective cover;

[0008] A power motor is installed in the middle of the support plate, and the fan blade is connected to the shaft end of the power motor. Splicing grooves are opened on both sides of the support plate. Splicing plates are fixed on both sides of the first sleeve and the second sleeve, and the splicing plates extend into the splicing grooves;

[0009] The inner walls of the first sleeve and the second sleeve are fitted with sound-absorbing cotton, and a positioning strip is provided on the inner side of the sound-absorbing cotton.

[0010] Preferably, the first sleeve and the second sleeve are both designed as semicircular structures, and the first sleeve and the second sleeve can be spliced into a circular tube shape. The positioning strips are respectively bolted to the first sleeve and the second sleeve, and the positioning strips are distributed in a circular array.

[0011] By adopting the above technical solution, two sets of semicircular first sleeves and second sleeves cooperate to form the fan casing, and multiple sets of positioning strips can fix the sound-absorbing cotton to the inner walls of the first sleeve and the second sleeve, thereby reducing the noise generated when the fan is running.

[0012] Preferably, the support plate is internally slidably connected to the limiting blocks, and the limiting blocks are symmetrically distributed at both ends of the support plate, and the opposite sides of the two groups of limiting blocks are designed in a "V" shape structure.

[0013] Preferably, the splicing plate extends to the inner section of the splicing groove and is designed to be an "L"-shaped structure, and the splicing plate is engaged and connected with the limiting block.

[0014] By adopting the above technical solution, the splicing plate can be fixed inside the splicing groove by the limiting block, thereby limiting the position change between the first sleeve, the second sleeve and the support plate.

[0015] Preferably, a positioning sleeve is fixed to the outer end of the limit block, and a threaded screw is threadedly connected to the inside of the positioning sleeve, and the threaded screw is rotatably connected to the inner wall of the support plate.

[0016] By adopting the above technical solution, through the cooperation between the threaded screw and the positioning sleeve, the positioning sleeve and the limit block can be driven to move synchronously when the threaded screw is rotated, thereby adjusting the position of the limit block.

[0017] Preferably, a transmission shaft passes through the upper ends of both sides of the support plate, and the transmission shaft is rotatably connected to the support plate, and a first bevel gear is fixed to the lower end of the transmission shaft, and a second bevel gear is fixed to the outer end of the threaded screw, and the second bevel gear is meshed with the first bevel gear.

[0018] By adopting the above technical solution, the first bevel gear can be driven to rotate by rotating the transmission shaft, and when the first bevel gear rotates, the second bevel gear and the threaded screw can be driven to rotate synchronously.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the industrial ventilator with a silencer mechanism;

[0020] 1. The sound-absorbing cotton structure is provided and installed using multiple sets of positioning strips, which facilitates the absorption and silencing of noise generated during the operation of the fan. The fan housing is formed by the engagement of the first sleeve and the second sleeve, which can be easily disassembled and assembled, thereby improving the convenience of replacing the sound-absorbing cotton.

[0021] 2. Through the cooperation of the splicing groove, the splicing plate and the limit block, the position of the splicing groove and the splicing plate can be quickly fixed, and then the positions of the first sleeve, the second sleeve and the support plate can be fixed to each other, so as to splice the fan casing, which is simple to operate and reliable in structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the power motor and fan blade structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the sound-absorbing cotton and positioning strip of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the first sleeve and the second sleeve of the utility model;

[0026] Figure 5 This is a schematic diagram of the support plate and limit block structure of the utility model;

[0027] Figure 6 For this utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0028] In the figure: 1. Support plate; 2. Positioning seat; 3. First sleeve; 4. Second sleeve; 5. Protective cover; 6. Power motor; 7. Fan blades; 8. Splicing groove; 9. Splicing plate; 10. Sound-absorbing cotton; 11. Positioning strip; 12. Limit block; 13. Positioning sleeve; 14. Threaded screw; 15. Drive shaft; 16. First bevel gear; 17. Second bevel gear. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6The utility model provides a technical solution: an industrial ventilator with a silencer mechanism, comprising a support plate 1, two ends of the support plate 1 are snap-connected with a positioning seat 2, and the support plate 1 is bolted to the positioning seat 2, the upper end of the middle of the support plate 1 is provided with a first sleeve 3, and the lower end of the middle of the support plate 1 is provided with a second sleeve 4, and the first sleeve 3 and the second sleeve 4 are bolted to two ends of the sleeve 3 and the second sleeve 4; the first sleeve 3 and the second sleeve 4 are both semicircular structure designs, and the first sleeve 3 and the second sleeve 4 can be spliced into a circular tube shape; the support plate 1 is respectively matched with the two groups of first sleeve 3 and second sleeve 4 to form a shell of the industrial ventilator, and the two groups of protective covers 5 are used to isolate the two ends of the first sleeve 3 and the second sleeve 4 to prevent foreign matter from entering the first sleeve 3 and the second sleeve 4. A power motor 6 is installed in the middle of the support plate 1, and the shaft end of the power motor 6 is connected with a fan blade 7. When the power motor 6 is started, it can drive the fan blade 7 to rotate at high speed and thus drive air flow.

[0031] Splicing grooves 8 are provided on both sides of the support plate 1, and splicing plates 9 are fixed on both sides of the first sleeve 3 and the second sleeve 4, and the splicing plates 9 extend into the inside of the splicing grooves 8; the support plate 1 is internally slidably connected to the limit blocks 12, and the limit blocks 12 are symmetrically distributed at both ends of the support plate 1, and the opposite sides of the two groups of limit blocks 12 are designed in a "V" shape; the splicing plate 9 extends to the inner section of the splicing groove 8 in an "L" shape, and the splicing plate 9 is snap-connected with the limit blocks 12; a positioning sleeve 13 is fixed to the outer end of the limit block 12, and a threaded screw 14 is threadedly connected to the inner wall of the support plate 1, and the threaded screw 14 is rotatably connected to the inner wall of the support plate 1; a transmission shaft 15 is passed through the upper ends of both sides of the support plate 1, and the transmission shaft 15 rotates with the support plate 1 The first bevel gear 16 is connected, and the lower end of the transmission shaft 15 is fixed with a first bevel gear 16, and the outer end of the threaded screw 14 is fixed with a second bevel gear 17, and the second bevel gear 17 is meshed with the first bevel gear 16; through the cooperation of the splicing groove 8, the splicing plate 9 and the limit block 12, it is convenient to engage and install the first sleeve 3 and the second sleeve 4, and the first bevel gear 16 can be driven to rotate by rotating the transmission shaft 15, and the first bevel gear 16 can drive the second bevel gear 17 and the threaded screw 14 to rotate synchronously, and the threaded screw 14 is used to drive the positioning sleeve 13 and the limit block 12 to move synchronously, so that the limit block 12 is engaged with the splicing plate 9 to complete the positioning. The structure is simple to operate and can quickly disassemble and assemble the first sleeve 3 and the second sleeve 4, thereby improving the convenience of operation.

[0032] Sound-absorbing cotton 10 is fitted on the inner walls of the first sleeve 3 and the second sleeve 4, and positioning strips 11 are provided on the inner side of the sound-absorbing cotton 10; the positioning strips 11 are bolted to the first sleeve 3 and the second sleeve 4 respectively, and the positioning strips 11 are distributed in a circular array; the sound-absorbing cotton 10 can be fixed to the inner walls of the first sleeve 3 and the second sleeve 4 by multiple groups of positioning strips 11, thereby absorbing the noise generated when the fan is in operation.

[0033] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An industrial ventilator with a silencer mechanism, comprising a support plate (1), characterized in that: The two ends of the support plate (1) are snap-connected with positioning seats (2), and the support plate (1) and the positioning seats (2) are fixed by bolts. A first sleeve (3) is provided at the upper middle end of the support plate (1), and a second sleeve (4) is provided at the lower middle end of the support plate (1), and protective covers (5) are bolted to both ends of the first sleeve (3) and the second sleeve (4). A power motor (6) is installed in the middle of the support plate (1), and a fan blade (7) is connected to the shaft end of the power motor (6). Splicing grooves (8) are opened on both sides of the support plate (1). Splicing plates (9) are fixed on both sides of the first sleeve (3) and the second sleeve (4), and the splicing plates (9) extend into the interior of the splicing grooves (8); The inner walls of the first sleeve (3) and the second sleeve (4) are fitted with sound-absorbing cotton (10), and a positioning strip (11) is provided on the inner side of the sound-absorbing cotton (10).

2. The industrial ventilator with a silencer mechanism according to claim 1, characterized in that: The first sleeve (3) and the second sleeve (4) are both designed as semicircular structures, and the first sleeve (3) and the second sleeve (4) can be spliced into a circular tube shape. The positioning strips (11) are respectively connected to the first sleeve (3) and the second sleeve (4) by bolts, and the positioning strips (11) are distributed in a circular array.

3. The industrial ventilator with a silencer mechanism according to claim 1, characterized in that: The support plate (1) is internally slidably connected to the limiting blocks (12), and the limiting blocks (12) are symmetrically distributed at both ends of the support plate (1), and the opposite sides of the two groups of limiting blocks (12) are designed in a "V"-shaped structure.

4. The industrial ventilator with a silencer mechanism according to claim 3, characterized in that: The splicing plate (9) extends to the inner section of the splicing groove (8) and is designed to be an "L"-shaped structure, and the splicing plate (9) is snap-connected with the limiting block (12).

5. The industrial ventilator with a silencer mechanism according to claim 3, characterized in that: A positioning sleeve (13) is fixed to the outer end of the limit block (12), and a threaded screw (14) is internally threadedly connected to the positioning sleeve (13), and the threaded screw (14) is rotatably connected to the inner wall of the support plate (1).

6. The industrial ventilator with a silencer mechanism according to claim 5, characterized in that: A transmission shaft (15) is passed through the upper ends of both sides of the support plate (1), and the transmission shaft (15) is rotatably connected to the support plate (1), and a first bevel gear (16) is fixed to the lower end of the transmission shaft (15), and a second bevel gear (17) is fixed to the outer end of the threaded screw (14), and the second bevel gear (17) is meshed with the first bevel gear (16).

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