CN218598411U - Induced draught fan - Google Patents

Abstract

The utility model provides an induced ventilator, which includes an outer casing, a support rod is fixed on the inner wall of the outer casing, a servo motor is fixed in the middle of the support rod, and a rotating shaft is fixed at the power output end of the servo motor. An exhaust fan blade is fixed on the outer wall of the rotating shaft, a second connecting rod is fixed at one end of the rotating shaft, and a spring is fixed at one end of the second connecting rod. This kind of induced ventilator drives the rotating shaft to rotate through the servo motor, the first connecting rod slides on the rotating shaft, the spring supports the first connecting rod, the cleaning rod fits the filter plate, and the cleaning rod scrapes outside the filter plate For cleaning, the cleaning rod cleans the filter plate to reduce the number of times to replace the filter plate. When it needs to be replaced for a long time, the two filter plates can be quickly disassembled, and the new two filter plates are inserted into the placement slot to block one end of the outer shell. The multi-filter plates are pressed against each other by the clamping block and the placement slot to limit the position.

Description

an induced ventilator

technical field

The utility model relates to the technical field of ventilators, in particular to an induced ventilator.

Background technique

Fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Modern fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings. Ventilation , Dust extraction and cooling, ventilation and induction of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household appliances, drying and selection of grain, wind tunnel wind source and inflation and propulsion of hovercraft, etc.

After the existing ventilator is used for a long time, a large amount of dust usually attaches to the outside of the dust-proof net, resulting in frequent disassembly of the dust-proof net. It is unfavorable, and the exhaust pipe of the fan is usually fixed, resulting in a fixed exhaust direction of the fan, which is inconvenient to adjust the exhaust direction, so we improve this and propose an induced fan.

Utility model content

In order to solve the above technical problems, the utility model provides the following technical solutions:

The utility model relates to an induced ventilator, which comprises an outer casing, a support rod is fixed on the inner wall of the outer casing, a servo motor is fixed in the middle of the support rod, a rotating shaft is fixed at the power output end of the servo motor, and the rotating shaft The outer wall is fixed with an exhaust fan blade, one end of the rotating shaft is fixed with a second connecting rod, one end of one side of the second connecting rod is fixed with a spring, one end of the spring is fixed with a first connecting rod, and the first connecting rod One side of the rod is fixed with a cleaning rod, and the top and bottom of the outer wall at one end of the outer casing are provided with placement slots, and filter plates are slidably connected inside the two placement slots, and a block is fixed on the outer wall of the filter plate. A second exhaust pipe is fixed through the middle part of the other end of the body, and a first exhaust pipe is threadedly connected to the outside of the other end of the outer shell.

As a preferred technical solution of the present utility model, a chute is opened on the outer wall of one end of the rotating shaft, one end of the first connecting rod is slidably connected to the chute, and a plurality of cleaning rods are provided. Arranged horizontally.

As a preferred technical solution of the present invention, one end of the chute is located on the same level as one side of the filter plate, and the length of the spring is greater than that of the chute.

As a preferred technical solution of the present invention, the filter plate is in a semicircular shape, the diameter of the filter plate is equal to the diameter of the inner wall of the outer shell, and a vent hole is opened on one side of the filter plate, and the vent hole There are a plurality of air holes arranged in a filling equidistant manner, and the thickness of the block matches the width of the slot.

As a preferred technical solution of the present utility model, there are multiple first exhaust pipes, the plurality of first exhaust pipes are arranged equidistantly around the circumference, and the first exhaust pipes are curved. The connection between the first exhaust pipe and the outer casing is sealed by a gasket.

As a preferred technical solution of the present utility model, an air intake cover is fixed at one end of the first exhaust pipe close to the support rod, the air intake cover is in the shape of a hollow circular platform, and the end of the first exhaust pipe close to the support rod The diameter value is greater than the diameter value at the other end of the support rod.

The beneficial effects of the utility model are: 1. This kind of induced fan drives the rotating shaft to rotate through the servo motor, the first connecting rod slides on the rotating shaft, the spring supports the first connecting rod, and the cleaning rod fits the filter The cleaning rod scrapes the outside of the filter plate for cleaning, and the cleaning rod cleans the filter plate to reduce the number of filter plates that need to be replaced. When the use time is long and needs to be replaced, the two filter plates are quickly disassembled, and the new two filter plates are inserted. One end of the outer casing is covered in the placement slot, and the multi-filter plate is squeezed by the clamp block and the placement slot to limit the position.

2. When this kind of induction fan needs to adjust the exhaust direction of the fan, the air intake cover can better discharge the gas inside the outer casing from the first exhaust pipe, and the first exhaust pipe is threadedly connected with the outer casing, so that more Each of the first exhaust pipes can be rotated, and the exhaust position of the first exhaust pipe can be quickly adjusted after the first exhaust pipe is rotated.

Description of drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing the exemplary embodiments of the present disclosure in more detail with reference to the accompanying drawings, wherein, in the exemplary embodiments of the present disclosure, the same reference numerals generally represent same parts.

Fig. 1 is a schematic front view of the overall structure of an induced ventilator of the present invention;

Fig. 2 is an enlarged schematic diagram of the structure of part A of Fig. 1 of a kind of induced draft fan of the present invention;

Fig. 3 is a schematic diagram of the internal structure of an induced ventilator of the present invention;

Fig. 4 is a schematic back view of the overall structure of an induced ventilator of the present invention.

In the figure: 1. Outer shell; 2. Support rod; 3. Servo motor; 4. Rotating shaft; 5. Exhaust fan blade; 6. Placement slot; 7. Filter plate; 10. First connecting rod; 11. Cleaning rod; 12. Spring; 13. Second connecting rod; 14. First exhaust pipe; 15. Air intake cover; 16. Second exhaust pipe; 17. Air vent.

Detailed ways

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Embodiment: As shown in Figures 1-4, an induced ventilator of the present invention includes an outer casing 1, a support rod 2 is fixed on the inner wall of the outer casing 1, a servo motor 3 is fixed in the middle of the support rod 2, and the power of the servo motor 3 The output end is fixed with a rotating shaft 4, the outer wall of the rotating shaft 4 is fixed with an exhaust fan blade 5, one end of the rotating shaft 4 is fixed with a second connecting rod 13, one end of the second connecting rod 13 is fixed with a spring 12, and one end of the spring 12 is fixed There is a first connecting rod 10, a cleaning rod 11 is fixed on one side of the first connecting rod 10, a placement groove 6 is provided on the top and bottom of the outer wall at one end of the outer casing 1, and a filter plate 7 is slidably connected inside the two placement grooves 6 to filter A block 8 is fixed on the outer wall of the plate 7 , a second exhaust pipe 16 is penetrated and fixed in the middle of the other end of the outer shell 1 , and a first exhaust pipe 14 is threaded through the outer side of the other end of the outer shell 1 .

Wherein, the outer wall of one end of the rotating shaft 4 is provided with a chute 9, one end of the first connecting rod 10 is slidably connected with the chute 9, and there are multiple cleaning rods 11 arranged horizontally and equidistantly, so that the first connection The rod 10 can slide on the rotating shaft 4, and at the same time, when the rotating shaft 4 rotates, it can drive the first connecting rod 10 to rotate, and then drive the cleaning rod 11 to scrape outside the filter plate 7 for cleaning.

Wherein, one end of the chute 9 is located on the same level as one side of the filter plate 7, the length of the spring 12 is greater than the length of the chute 9, and the first connecting rod 10 is supported by the spring 12, so that after the filter plate 7 has been replaced, The cleaning rod 11 can still fit the filter plate 7 .

Wherein, the filter plate 7 is semicircular, and the diameter value of the filter plate 7 is equal to the inner wall diameter value of the outer casing 1. One side of the filter plate 7 is penetrated with a vent hole 17, and the vent hole 17 is provided with a plurality of vent holes 17. Filling is arranged equidistantly, the thickness value of the clamping block 8 is adapted to the width value of the placement groove 6, so that two filter plates 7 can be inserted into the placement groove 6 to cover one end of the outer casing 1, and the filter plate 7 can be quickly disassembled. The multi-filter plates 7 are pressed against each other by the clamping block 8 and the placement groove 6 to limit the position.

Among them, there are multiple first exhaust pipes 14, and the plurality of first exhaust pipes 14 are arranged in a circular equidistant manner, and the first exhaust pipes 14 are curved. Sealed by the gasket, the first exhaust pipe 14 is screwed to the outer casing 1, so that a plurality of first exhaust pipes 14 can be rotated, and the exhaust position of the first exhaust pipe 14 after the rotation of the first exhaust pipe 14 Fast adjustment is performed, and at the same time, the gasket can seal the gap between the first exhaust pipe 14 and the outer casing 1 .

Wherein, the first exhaust pipe 14 is fixed with an air intake cover 15 near the end of the support rod 2, the air intake cover 15 is in the shape of a hollow circular platform, and the diameter of the first exhaust pipe 14 near the end of the support rod 2 is greater than that of the other end of the support rod 2. The gas in the outer shell 1 is better discharged from the first exhaust pipe 14 through the air intake cover 15 .

Working principle: When this kind of induced ventilator is in use, the servo motor 3 drives the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, it can drive the first connecting rod 10 to rotate. Sliding, the length of the spring 12 is greater than the length of the chute 9, the first connecting rod 10 is supported by the spring 12, the cleaning rod 11 is attached to the filter plate 7, and the cleaning rod 11 is scraped outside the filter plate 7 for cleaning. The rod 11 cleans the filter plate 7 and reduces the number of times that the filter plate 7 needs to be replaced. When the use time is long and needs to be replaced, the two filter plates 7 are quickly disassembled, and the new two filter plates 7 are inserted into the placement groove 6 and one end of the outer shell 1 For shielding, the multi-filter plate 7 is squeezed by the clamping block 8 and the placement groove 6 to limit the position. When it is necessary to adjust the exhaust direction of the fan, the air intake cover 15 better transfers the gas inside the outer shell 1 from the first row. The air pipe 14 is discharged, and the first exhaust pipe 14 is threadedly connected with the outer shell 1, so that a plurality of first exhaust pipes 14 can be rotated, and the exhaust position of the first exhaust pipe 14 after the rotation of the first exhaust pipe 14 Just make quick adjustments.

In order to facilitate the understanding of the solutions and effects of the embodiments of the present invention, a specific application example is given below. Those skilled in the art should understand that this example is only for the convenience of understanding the utility model, and any specific details thereof are not intended to limit the utility model in any way.

Those skilled in the art should understand that the purpose of the above description of the embodiments of the present invention is only to illustrate the beneficial effects of the embodiments of the present invention, and is not intended to limit the embodiments of the present invention to the given any examples.

Various embodiments of the present invention have been described above, the above description is illustrative, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims (6)

1. An induced ventilator, comprising an outer shell (1), characterized in that, the inner wall of the outer shell (1) is fixed with a support rod (2), and the middle part of the support rod (2) is fixed with a servo motor (3) , the power output end of the servo motor (3) is fixed with a rotating shaft (4), the outer wall of the rotating shaft (4) is fixed with an exhaust fan blade (5), and one end of the rotating shaft (4) is fixed with a second Connecting rod (13), one end on one side of the second connecting rod (13) is fixed with a spring (12), and one end of the spring (12) is fixed with a first connecting rod (10), and the first connecting rod ( 10) One side is fixed with a cleaning rod (11), and the top and bottom of one end of the outer wall of the outer casing (1) are provided with placement grooves (6), and the inside of the two placement grooves (6) are slidingly connected with filter plates ( 7), the outer wall of the filter plate (7) is fixed with a block (8), the middle part of the other end of the outer casing (1) is fixed with a second exhaust pipe (16), and the other end of the outer casing (1) The outer side is threadedly connected with a first exhaust pipe (14). 2. A kind of induction fan according to claim 1, characterized in that, the outer wall of one end of the rotating shaft (4) is provided with a chute (9), and one end of the first connecting rod (10) is connected to the chute ( 9) Sliding connection, multiple cleaning rods (11) are provided, and multiple cleaning rods (11) are arranged horizontally and equidistantly. 3. An induced draft fan according to claim 2, characterized in that one end of the chute (9) is located on the same level as one side of the filter plate (7), and the length of the spring (12) is greater than that of the chute. The length value of the slot (9). 4. An induced draft fan according to claim 1, characterized in that, the filter plate (7) is semicircular, and the diameter of the filter plate (7) is equal to the diameter of the inner wall of the outer casing (1) One side of the filter plate (7) is provided with air holes (17), the air holes (17) are provided with a plurality of air holes (17) arranged in a filling equidistant manner, the card The thickness value of the block (8) is adapted to the width value of the placement groove (6). 5. A kind of induced draft fan according to claim 1, is characterized in that, described first exhaust pipe (14) is provided with a plurality of, and a plurality of described first exhaust pipes (14) are circumferential equidistant Arranged, the first exhaust pipe (14) is curved, and the connection between the first exhaust pipe (14) and the outer casing (1) is sealed by a gasket. 6. A kind of induction fan according to claim 1, characterized in that, an air intake cover (15) is fixed at one end of the first exhaust pipe (14) close to the support rod (2), and the air intake cover (15) is (15) is in the shape of a hollow truncated circle, and the diameter of the end of the first exhaust pipe (14) close to the support rod (2) is larger than the diameter of the other end of the support rod (2).

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