Greenhouse ventilation device

Abstract

The utility model discloses a greenhouse ventilation device, and particularly relates to the technical field of greenhouses, the greenhouse ventilation device comprises a shell, a fan is connected to the middle position of the inner wall of the shell, a filter screen is connected to the inner wall of the shell close to the front side of the fan, strip-shaped holes are formed in the left side and the right side of the shell close to the front side of the filter screen, and the strip-shaped holes are communicated with the fan. First U-shaped frames are connected to the left side and the right side of the shell correspondingly, driving mechanisms are arranged in the first U-shaped frames, and brushes are connected to the front side of a filter screen through the driving mechanisms. By arranging the filter screen, the effect of preventing pests from entering the greenhouse along with airflow is achieved, the effect of filtering the pests is achieved, a motor drives a reciprocating lead screw to rotate, a ball nut pair and a fixing plate are driven to move up and down, then a brush is driven to wipe the outer side of the filter screen back and forth up and down, and the effect of cleaning dust and sundries is achieved; the filter screen is prevented from being blocked by sundries, so that normal ventilation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouses, in particular to a ventilation and air exchange device for greenhouses. Background Art

[0002] A greenhouse is an agricultural facility that uses special materials and structures to create an environment suitable for crop growth in open-air planting areas. The main function of this facility is to provide sufficient temperature, humidity, light, air and other conditions to promote the growth and development of crops. Crops in the greenhouse need fresh air to breathe. If the air is not circulated, the carbon dioxide concentration will increase, making it difficult to provide sufficient nutrients for the growth and development of crops, affecting yield and quality. Therefore, ventilation equipment is needed in the greenhouse.

[0003] At present, greenhouse ventilation is generally based on the different layouts of the greenhouse. Ventilation windows are opened on the side walls of the greenhouse, and natural ventilation is achieved by using wind power to form convection airflow to achieve the effect of ventilation. However, when ventilation windows are opened, pests are prone to follow the airflow into the greenhouse, increasing the difficulty of greenhouse disease and insect control. Utility Model Content

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

[0005] A greenhouse ventilation device, comprising:

[0006] A housing, a fan is connected to the middle of the inner wall of the housing, a filter is connected to the front side of the inner wall of the housing near the fan, strip holes are provided on the left and right sides of the housing near the front of the filter, a first U-shaped frame is connected to the left and right sides of the housing near the strip holes, a driving mechanism is provided inside the first U-shaped frame, and a brush is connected to the front side of the filter through the driving mechanism;

[0007] A wind direction adjustment mechanism is provided inside the housing near the back side of the fan;

[0008] A mounting frame is connected to the middle position of the outer side of the shell.

[0009] In one possible implementation, the driving mechanism includes a motor connected to the inside of a first U-shaped frame, one end of the motor output shaft is connected to a reciprocating screw, one end of the reciprocating screw is connected to a first bearing seat, the bottom of the first bearing seat is fixedly connected to the first U-shaped frame, the outer side of the reciprocating screw is connected to a ball nut pair, the outer side of the ball nut pair is fixedly connected to a fixing plate, and one side of the fixing plate is fixedly connected to a brush.

[0010] In a possible implementation manner, one side of the fixing plate passes through the interior of the strip-shaped hole.

[0011] In one possible implementation, the wind direction adjustment mechanism includes five fan blades arranged inside the shell, both sides of the fan blades are connected to a shaft rod, one end of the shaft rod is rotatably connected to a second bearing seat, the outer side of the second bearing seat is fixedly connected to the inner wall of the shell, and a sliding groove is opened on the left side of the fan blade near the front side of the shaft rod, and a slider is slidably connected to the inside of the sliding groove.

[0012] In a possible implementation, rectangular holes are opened correspondingly at the upper and lower positions on the back side of the shell, a second U-shaped frame is connected to the lower part of the shell near the rectangular hole, a screw hole is opened inside the second U-shaped frame, a screw is threadedly connected to the inner thread of the screw hole, a knob is connected to the bottom end of the screw, the top end of the screw is rotatably connected to a third bearing seat, a movable plate is fixedly connected to the top of the third bearing seat, five limit grooves are opened equidistantly from top to bottom inside the movable plate, and one end of the slider passes through the inside of the limit groove.

[0013] In a possible implementation manner, the position of the movable plate corresponds to the position of the rectangular hole.

[0014] In a possible implementation, the five fan blades are equidistantly distributed from top to bottom.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. By setting up the filter, it is helpful to prevent pests from following the air flow into the greenhouse, and it has the effect of filtering pests. The reciprocating screw is driven by the motor to rotate, driving the ball nut pair and the fixed plate to move up and down, and then driving the brush to wipe back and forth along the outside of the filter, which is helpful to clean up dust and debris, avoid debris clogging the filter, and then help to ensure normal ventilation.

[0017] 2. By rotating the knob, under the connection of the screw and the screw hole, the movable plate can be driven downward. Through the cooperation of the slide groove, the slider and the limit groove, the five fan blades can be turned upward at the same time, which is beneficial to avoid the air blowing directly on the crops when the wind speed is high, thereby protecting the crops in the greenhouse. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 This is one of the overall structural diagrams of the utility model;

[0020] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the fan of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the driving mechanism of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the wind direction adjustment mechanism of the utility model.

[0024] Description of reference numerals:

[0025] 1. Housing; 2. Mounting frame; 3. First U-shaped frame; 4. Filter; 5. Brush; 6. Fan blades; 7. Strip holes; 8. Rectangular holes; 9. Fan; 10. Motor; 11. Ball nut pair; 12. Fixed plate; 13. Reciprocating screw; 14. First bearing seat; 15. Shaft; 16. Second bearing seat; 17. Knob; 18. Movable plate; 19. Slide groove; 20. Slider; 21. Limiting groove; 22. Third bearing seat; 23. Second U-shaped frame; 24. Screw hole; 25. Screw. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The embodiment of the present application solves the problems in the prior art by providing a greenhouse ventilation device.

[0028] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0029] Embodiment 1:

[0030] The specific structure of this embodiment is as follows: Figure 1-Figure 4 As shown, a greenhouse ventilation device comprises:

[0031] A housing 1, a fan 9 is connected to the middle of the inner wall of the housing 1, a filter 4 is connected to the inner wall of the housing 1 near the front of the fan 9, strip holes 7 are provided on the left and right sides of the housing 1 near the front of the filter 4, a first U-shaped frame 3 is connected to the left and right sides of the housing 1 near the strip holes 7, a driving mechanism is provided inside the first U-shaped frame 3, and a brush 5 is connected to the front of the filter 4 through the driving mechanism;

[0032] A wind direction adjustment mechanism is provided inside the housing 1 near the back side of the fan 9;

[0033] A mounting frame 2 is connected to the middle position of the outer side of the shell 1, and the shell 1 is installed on the left and right sides of the greenhouse, and the mounting frame 2 is fixed to the left and right sides of the greenhouse by bolts.

[0034] In some examples, the driving mechanism includes a motor 10 connected to the inside of the first U-shaped frame 3, one end of the output shaft of the motor 10 is connected to a reciprocating screw 13, one end of the reciprocating screw 13 is connected to a first bearing seat 14, the bottom of the first bearing seat 14 is fixedly connected to the first U-shaped frame 3, the outer side of the reciprocating screw 13 is connected to a ball nut pair 11, the outer side of the ball nut pair 11 is fixedly connected to a fixed plate 12, one side of the fixed plate 12 is fixedly connected to the brush 5, the motor 10 is turned on to drive the reciprocating screw 13 to rotate, drive the ball nut pair 11 and the fixed plate 12 to move up and down, and then drive the brush 5 to wipe back and forth along the outer side of the filter 4.

[0035] In some examples, one side of the fixing plate 12 passes through the interior of the strip-shaped hole 7 .

[0036] The utility model is helpful to prevent pests from entering the greenhouse with the air flow by setting the filter 4, and has the effect of filtering pests. The reciprocating screw 13 is driven to rotate by the motor 10, driving the ball nut pair 11 and the fixing plate 12 to move up and down, thereby driving the brush 5 to wipe back and forth along the outer side of the filter 4, which is helpful to clean up dust and debris, avoid debris clogging the filter 4, and thus help to ensure normal ventilation.

[0037] Embodiment 2:

[0038] The specific structure of this embodiment is as follows: Figure 2 and Figure 5 As shown, the wind direction adjustment mechanism includes five fan blades 6 arranged inside the shell 1, and the two sides of the fan blades 6 are connected with a shaft 15, one end of the shaft 15 is rotatably connected to the second bearing seat 16, and the outer side of the second bearing seat 16 is fixedly connected to the inner wall of the shell 1, and a slide groove 19 is opened on the left side of the fan blade 6 near the front side of the shaft 15, and a slider 20 is slidably connected inside the slide groove 19. The movable plate 18 moves downward, driving the slider 20 inside the limiting groove 21 to slide to the left, and then pulling one side of the fan blade 6 to flip downward, forming a left low and right high, which is convenient for adjusting the wind direction.

[0039] In some examples, rectangular holes 8 are opened correspondingly at the upper and lower positions on the back side of the shell 1, and a second U-shaped frame 23 is connected to the lower part of the shell 1 near the rectangular hole 8. A screw hole 24 is opened inside the second U-shaped frame 23, and a screw rod 25 is threadedly connected to the inner part of the screw hole 24. The bottom end of the screw rod 25 is connected to a knob 17, and the top end of the screw rod 25 is rotatably connected to a third bearing seat 22. The top of the third bearing seat 22 is fixedly connected to a movable plate 18. Five limit grooves 21 are opened equidistantly from top to bottom inside the movable plate 18, and one end of the slider 20 passes through the inside of the limit groove 21. By rotating the knob 17, the movable plate 18 can be conveniently driven to move downward under the connection between the screw rod 25 and the screw hole 24.

[0040] In some examples, the position of the movable plate 18 corresponds to the position of the rectangular hole 8, so that the movable plate 18 can be inserted into the rectangular hole 8 during the lifting and lowering process to avoid affecting the lifting and lowering of the movable plate 18.

[0041] In some examples, the five fan blades 6 are evenly spaced from top to bottom.

[0042] The utility model can conveniently drive the movable plate 18 to move downward by rotating the knob 17 under the connection action of the screw rod 25 and the screw hole 24, and simultaneously drive the five fan blades 6 to flip upward at an angle through the cooperation of the slide groove 19, the slider 20 and the limit groove 21, which is beneficial to avoid direct air blowing on crops when the wind speed is relatively high, thereby protecting the crops in the greenhouse.

[0043] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A greenhouse ventilation device, characterized in that: include: A housing (1), a fan (9) is connected to the middle of the inner wall of the housing (1), a filter (4) is connected to the inner wall of the housing (1) near the front of the fan (9), strip holes (7) are provided on both the left and right sides of the housing (1) near the front of the filter (4), a first U-shaped frame (3) is connected to both the left and right sides of the housing (1) near the strip holes (7), a driving mechanism is provided inside the first U-shaped frame (3), and a brush (5) is connected to the front of the filter (4) via the driving mechanism; A wind direction adjustment mechanism is provided inside the housing (1) on the back side close to the fan (9); A mounting frame (2) is connected to the middle position of the outer side of the housing (1).

2. A greenhouse ventilation device according to claim 1, characterized in that: The driving mechanism comprises a motor (10) connected to the inside of a first U-shaped frame (3); one end of the output shaft of the motor (10) is connected to a reciprocating screw (13); one end of the reciprocating screw (13) is connected to a first bearing seat (14); the bottom of the first bearing seat (14) is fixedly connected to the first U-shaped frame (3); the outer side of the reciprocating screw (13) is connected to a ball nut pair (11); the outer side of the ball nut pair (11) is fixedly connected to a fixing plate (12); one side of the fixing plate (12) is fixedly connected to a brush (5).

3. A greenhouse ventilation device according to claim 2, characterized in that: One side of the fixing plate (12) passes through the interior of the strip-shaped hole (7).

4. A greenhouse ventilation device according to claim 1, characterized in that: The wind direction adjustment mechanism comprises five fan blades (6) arranged inside the housing (1), both sides of the fan blades (6) are connected to a shaft (15), one end of the shaft (15) is rotatably connected to a second bearing seat (16), the outer side of the second bearing seat (16) is fixedly connected to the inner wall of the housing (1), and a slide groove (19) is provided on the left side of the fan blade (6) near the front side of the shaft (15), and a slider (20) is slidably connected inside the slide groove (19).

5. A greenhouse ventilation device according to claim 4, characterized in that: Rectangular holes (8) are provided at corresponding upper and lower positions on the back side of the shell (1); a second U-shaped frame (23) is connected to a position near the rectangular hole (8) below the shell (1); a screw hole (24) is provided inside the second U-shaped frame (23); a screw rod (25) is threadedly connected to the inside of the screw hole (24); a knob (17) is connected to the bottom end of the screw rod (25); a third bearing seat (22) is rotatably connected to the top end of the screw rod (25); a movable plate (18) is fixedly connected to the top of the third bearing seat (22); five limiting grooves (21) are equidistantly provided inside the movable plate (18) from top to bottom; one end of the slider (20) passes through the inside of the limiting groove (21).

6. A greenhouse ventilation device according to claim 5, characterized in that: The position of the movable plate (18) corresponds to the position of the rectangular hole (8).

7. A greenhouse ventilation device according to claim 4, characterized in that: The five fan blades (6) are distributed at equal distances from top to bottom.

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