Positive pressure fan for livestock breeding ventilation

Abstract

The utility model discloses a positive pressure fan for livestock breeding ventilation, and belongs to the technical field of positive pressure fans, the positive pressure fan comprises a shell mounted in a livestock shed and a fixing frame arranged on one side of the shell, two mounting grooves are formed in the surface of the shell, and a dustproof plate and a filter plate are respectively mounted in the two mounting grooves in the surface of the shell. A driving motor is installed on the outer wall of one side of the shell, a guide screw rod is fixed to the output end of the driving motor, a cleaning plate used for cleaning the dustproof plate is in threaded connection with the outer wall of the guide screw rod, two connecting columns fixedly connected with a fixing frame are fixed to the outer wall of one side of the shell, and a stepping motor is installed in the fixing frame; and two rotating columns are rotationally connected into the fixing frame, and a ventilation plate is fixed between the two rotating columns. According to the positive pressure fan for livestock breeding ventilation, the dustproof plate can be effectively cleaned conveniently, the blowing angle can be automatically adjusted according to the ventilation requirement, and use is more flexible.

Description

Technical Field

[0001] The utility model belongs to the technical field of positive pressure fans, and in particular relates to a positive pressure fan for ventilation of animal husbandry. Background Art

[0002] Livestock houses refer to places where poultry, livestock and other animals are raised. There are usually a large number of poultry or livestock in livestock houses. Poultry or livestock will produce a large amount of excrement every day during their growth, which will cause the livestock house to contain high levels of harmful gases such as ammonia, hydrogen sulfide, and methane. In addition, a large number of poultry or livestock gathered together will generate a large amount of heat, water vapor, etc. At the same time, aerosol pathogens will also be mixed in the air in the livestock house. The above situations will affect the growth of poultry or livestock. Therefore, during the livestock breeding process, positive pressure fans will be used to ventilate the livestock house.

[0003] One-way positive pressure fans usually have a fan and a filter-type air purification device installed in a housing, and use the fan to introduce outdoor fresh air into the housing through the outdoor air outlet, and then send it to the room through the filter-type air purification device. Most of the positive pressure fans used in animal husbandry in the prior art can only blow air to a fixed position, and the blowing range is limited, which will affect the speed of air purification in the animal house. Utility Model Content

[0004] The purpose of the utility model is to provide a positive pressure fan for livestock breeding ventilation, so as to solve the problem that most of the positive pressure fans for livestock breeding proposed in the above background technology can only blow air to fixed positions, and the blowing range is limited, thus affecting the speed of air purification in the livestock house.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positive pressure fan for ventilation of animal husbandry, comprising a shell installed in an animal husbandry house and a fixing frame arranged on one side of the shell, the surface of the shell is provided with two mounting grooves, and a dust plate and a filter plate are respectively installed in the two mounting grooves on the surface of the shell, a driving motor is installed on the outer wall of one side of the shell, a guide screw is fixed on the output end of the driving motor, and a cleaning plate for cleaning the dust plate is threadedly connected to the outer wall of the guide screw, and a backward-inclined impeller centrifugal fan is arranged between the dust plate and the filter plate;

[0006] Two connecting columns fixedly connected to a fixing frame are fixed on an outer wall of one side of the shell. A stepper motor is installed in the fixing frame, and two rotating columns are rotatably connected in the fixing frame. A ventilation plate is fixed between the two rotating columns.

[0007] In a further embodiment, a driving gear is fixed to the output end of the stepper motor, and a driven gear meshing with the driving gear is fixed to the outer wall of the rotating column.

[0008] In a further embodiment, a ventilation hood is fixed in the shell, and a telescopic hose connected to the ventilation plate is installed in the ventilation hood, and a plurality of blowing hoods are installed on an outer wall of one side of the ventilation plate.

[0009] In a further embodiment, a support frame is fixed to the bottom of the shell, a dust collecting frame is movably connected to the support frame, and a dust outlet groove corresponding to the position of the dust collecting frame is opened at the bottom of the shell.

[0010] In a further embodiment, two limiting holes are symmetrically provided on the cleaning plate, and limiting columns fixedly connected to the inner wall of the housing are movably connected in the limiting holes of the cleaning plate.

[0011] In a further embodiment, an air inlet hole is opened on an outer wall of one side of the shell, and an air inlet pipe is installed in the air inlet hole of the shell.

[0012] Technical effects and advantages of the utility model:

[0013] The positive pressure fan for livestock breeding ventilation works through a stepper motor, which can drive the rotating column and the ventilation plate to rotate, so that the blowing hood blows air in different directions in the livestock house, thereby accelerating the air flow in the livestock house and improving the air purification efficiency;

[0014] By driving the guide screw to rotate through the driving motor, the cleaning plate can be driven to move back and forth in the outer shell to automatically clean the dustproof plate, thereby avoiding clogging of the dustproof plate due to long-term use, which affects the air intake effect of the fan. The positive pressure fan for livestock breeding ventilation is not only convenient for effective cleaning of the dustproof plate, but also can automatically adjust the blowing angle according to ventilation needs, making it more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the housing of the utility model;

[0018] Figure 3 For the utility model Figure 1 Sectional view in the AA direction;

[0019] Figure 4It is a structural schematic diagram of the driving motor and the cleaning plate of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the fixing frame of the utility model;

[0021] Figure 6 It is a top view of the fixing frame of the utility model.

[0022] In the figure: 1. outer shell; 2. air inlet pipe; 3. dust plate; 4. driving motor; 5. guide screw; 6. cleaning plate; 7. limit column; 8. support frame; 9. dust collecting frame; 10. backward impeller centrifugal fan; 11. filter plate; 12. ventilation cover; 13. connecting column; 14. fixing frame; 15. stepping motor; 16. driving gear; 17. rotating column; 18. ventilation plate; 19. driven gear; 20. blowing cover; 21. telescopic hose. DETAILED DESCRIPTION

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0024] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0025] In order to effectively clean the dustproof plate 3, Figures 1 to 4 As shown, an air inlet hole is provided on the left outer wall of the housing 1, and an air inlet pipe 2 is installed in the air inlet hole of the housing 1, two mounting grooves are provided on the surface of the housing 1, and a dustproof plate 3 and a filter plate 11 are respectively installed in the two mounting grooves on the surface of the housing 1, a dustproof net is installed on the dustproof plate 3, and a filter element is filled in the filter plate 11. The filter element can adopt a 14H filter element, which can filter fine pollutant particles to keep the indoor air clean, and a backward-inclined impeller centrifugal fan 10 is provided between the dustproof plate 3 and the filter plate 11. The backward-inclined impeller centrifugal fan 10 is fixed to the inner wall of the housing 1 by bolts. The backward-inclined impeller centrifugal fan 10 is a prior art, and its structure will not be described in detail here;

[0026] A driving motor 4 is installed on the outer wall of one side of the shell 1 by bolts, and a protective shell is provided on the outside of the driving motor 4, which is fixedly connected to the shell 1 by bolts. A plurality of heat dissipation holes are provided at appropriate positions of the shell 1, and a guide screw 5 is fixed to the output end of the driving motor 4 by a coupling, and a cleaning plate 6 for cleaning the dustproof plate 3 is threadedly connected to the outer wall of the guide screw 5, and bristles are installed on the cleaning plate 6, and the bristles are in contact with the dustproof plate 3, and two limiting holes are symmetrically provided on the cleaning plate 6, and a limiting column 7 fixedly connected to the inner wall of the shell 1 is movably connected in the limiting hole of the cleaning plate 6. When the driving motor 4 is working, the cleaning plate 6 is ensured to move horizontally in the outer shell 1. A support frame 8 is fixed to the bottom of the outer shell 1 by bolts. A dust collecting frame 9 is movably connected to the support frame 8. A dust outlet groove corresponding to the position of the dust collecting frame 9 is opened at the bottom of the outer shell 1. Mutually attracted magnets are installed at the corresponding positions of the support frame 8 and the dust collecting frame 9, thereby ensuring the stability of the dust collecting frame 9. The guide screw 5 is driven to rotate by the driving motor 4, thereby driving the cleaning plate 6 to move back and forth in the outer shell 1, automatically cleaning the dustproof plate 3, and avoiding clogging of the dustproof plate 3 due to long-term use, which affects the air intake effect of the fan.

[0027] In order to automatically adjust the blowing angle according to ventilation needs and improve air purification efficiency, such as Figure 1 , Figure 5 and Figure 6 As shown, two connecting columns 13 are welded to the right outer wall of the shell 1, and a fixing frame 14 is welded to the right end of the connecting column 13. A stepping motor 15 is installed in the fixing frame 14 by bolts. A driving gear 16 is fixed to the output end of the stepping motor 15, and two rotating columns 17 are rotatably connected in the fixing frame 14 by welded bearings, a ventilation plate 18 is fixed between the two rotating columns 17, and a driven gear 19 meshing with the driving gear 16 is fixed to the outer wall of the rotating column 17. A ventilation cover 12 is fixed in the shell 1, and a telescopic hose 21 connected to the ventilation plate 18 is installed in the ventilation cover 12, and a plurality of blowing covers 20 are installed on the outer wall of one side of the ventilation plate 18. The stepping motor 15 can drive the rotating column 17 and the ventilation plate 18 to rotate, so that the blowing cover 20 blows air in different directions in the animal husbandry house, thereby accelerating the air flow in the animal husbandry house and improving the air purification efficiency.

[0028] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The control method of the utility model is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0029] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Working principle:

[0031] When the positive pressure fan for livestock breeding ventilation is used, the housing 1 is installed at a suitable position of the livestock house, and the backward-inclined impeller centrifugal fan 10 is started, so that outdoor fresh air enters the housing 1 through the air inlet pipe 2, and the dustproof plate 3 filters large particles of impurities such as dust in the fresh air, and then the filter plate 11 filters fine pollutant particles, and the filtered air enters the ventilation plate 18 through the ventilation cover 12, and finally blows into the livestock house through the blowing cover 20 to purify the air in the livestock house;

[0032] During the air purification process, the stepper motor 15 can be started according to actual usage needs. The stepper motor 15 drives the driving gear 16 to rotate. The driving gear 16 drives the rotating column 17 and the ventilation plate 18 to rotate through the driven gear 19, so that the blowing hood 20 blows air in different directions in the livestock house, thereby accelerating the air flow in the livestock house and improving the air purification efficiency. After the air purification in the livestock house is completed, the driving motor 4 is started to rotate in a forward and reverse cycle, driving the guide screw 5 to rotate, thereby driving the cleaning plate 6 to move back and forth in the outer shell 1, automatically cleaning the dustproof plate 3, and the cleaned dust falls into the dust collecting frame 9, and then the dust collecting frame 9 is taken out from the support frame 8, and the dust in the dust collecting frame 9 is cleaned.

[0033] 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 positive pressure fan for livestock breeding ventilation, comprising a housing (1) installed in a livestock house and a fixing frame (14) arranged on one side of the housing (1), characterized in that: The surface of the housing (1) is provided with two mounting grooves, and a dust plate (3) and a filter plate (11) are respectively mounted in the two mounting grooves on the surface of the housing (1); a drive motor (4) is mounted on an outer wall of one side of the housing (1); a guide screw (5) is fixed to the output end of the drive motor (4), and a cleaning plate (6) for cleaning the dust plate (3) is threadedly connected to the outer wall of the guide screw (5); a backward-inclined impeller centrifugal fan (10) is arranged between the dust plate (3) and the filter plate (11); Two connecting columns (13) fixedly connected to a fixing frame (14) are fixed on an outer wall of one side of the housing (1); a stepping motor (15) is installed in the fixing frame (14); and two rotating columns (17) are rotatably connected in the fixing frame (14); a ventilation plate (18) is fixed between the two rotating columns (17).

2. A positive pressure fan for livestock breeding ventilation according to claim 1, characterized in that: A driving gear (16) is fixed to the output end of the stepping motor (15), and a driven gear (19) meshing with the driving gear (16) is fixed to the outer wall of the rotating column (17).

3. A positive pressure fan for livestock breeding ventilation according to claim 1, characterized in that: A ventilation hood (12) is fixed inside the housing (1), and a telescopic hose (21) connected to the ventilation plate (18) is installed inside the ventilation hood (12), and a plurality of blowing hoods (20) are installed on an outer wall of one side of the ventilation plate (18).

4. A positive pressure fan for livestock breeding ventilation according to claim 3, characterized in that: A support frame (8) is fixed to the bottom of the outer shell (1), a dust collecting frame (9) is movably connected inside the support frame (8), and a dust outlet groove corresponding to the position of the dust collecting frame (9) is provided at the bottom of the outer shell (1).

5. The positive pressure fan for livestock breeding ventilation according to claim 1, characterized in that: Two limiting holes are symmetrically formed on the cleaning plate (6), and limiting posts (7) fixedly connected to the inner wall of the housing (1) are movably connected in the limiting holes of the cleaning plate (6).

6. A positive pressure fan for livestock breeding ventilation according to claim 4, characterized in that: An air inlet hole is provided on one side outer wall of the shell (1), and an air inlet pipe (2) is installed in the air inlet hole of the shell (1).

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