CN115176709B

CN115176709B - Cowshed ventilation device

Info

Publication number: CN115176709B
Application number: CN202210774083.4A
Authority: CN
Inventors: 陈志�; 曹翔; 杨章平
Original assignee: Yangzhou University
Current assignee: Yangzhou University
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2023-07-07
Anticipated expiration: 2042-07-01
Also published as: CN115176709A; GB2621233A

Abstract

The invention discloses a cowshed ventilation device which comprises a cowshed main body, a ventilation assembly and a power assembly, wherein the cowshed main body comprises a wall body and a ceiling arranged on the wall body; the ventilation assembly comprises a fixed frame, a first adjusting plate and a second adjusting plate, the fixed frame is fixedly arranged on a wall body, the first adjusting plate and the second adjusting plate are arranged on the inner wall of the fixed frame, and a cavity is formed in front of the first adjusting plate and the second adjusting plate; the power assembly comprises an air inlet cover, an air pipe, an axial flow fan and an air outlet cover, wherein the air inlet cover is arranged on the fixed frame, the air inlet cover is communicated with the top of the cavity, the top of the air inlet cover is communicated with the bottom of the air pipe, the axial flow fan is arranged on the air pipe, and the top of the air pipe is communicated with the top of the air outlet cover; the ventilation mode can be used for ventilating and ventilating the turbid air in the cowshed through two ventilation modes of passive ventilation and active ventilation, and is various, can adapt to different weather conditions and is convenient to use.

Description

Cowshed ventilation device

Technical Field

The invention relates to the technical field of cultivation, in particular to a cowshed ventilation device.

Background

In recent years, the development of the livestock breeding industry in China is very rapid, the livestock breeding farms are developed from courtyard, miniaturization to intensification and large-scale, particularly, the large-scale livestock breeding farms are more and more around large-medium cities, and the economic benefit of the livestock breeding industry is also very remarkable. However, for large-scale modern cattle farms, many cattle are stored in each cattle shed, and a large amount of ammonia is generated in the breeding process due to the fact that the cattle are gathered together, and meanwhile, the respiratory diseases of the cattle can be caused due to the fact that the ammonia concentration is too high, and the health of the cattle can be influenced by turbid air.

The existing ventilation mode is generally window opening ventilation, air circulation is difficult under the condition of no natural wind, ventilation efficiency is low, the ventilation mode is single, the ventilation mode is difficult to adapt to different weather conditions, the overall structure of the cowshed is quite wide, a plurality of windows are arranged on a wall body, the window is manually opened and closed, the window is adjusted, and the operation is complex and inconvenient.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.

The present invention has been made in view of the problems occurring in the prior art.

Therefore, the technical problems to be solved by the invention are as follows: under the condition of no natural wind, the ventilation is difficult, the ventilation efficiency is low, the ventilation mode is single, and the ventilation device is difficult to adapt to different weather conditions.

In order to solve the technical problems, the invention provides the following technical scheme: the cowshed ventilation device comprises a cowshed ventilation device, and comprises a cowshed main body, a ventilation assembly and a power assembly, wherein the cowshed main body comprises a wall body and a ceiling arranged on the wall body; the ventilation assembly comprises a fixed frame, a first adjusting plate and a second adjusting plate, wherein the fixed frame is fixedly arranged on a wall body, the first adjusting plate and the second adjusting plate are arranged on the inner wall of the fixed frame, and a cavity is formed in front of the first adjusting plate and the second adjusting plate; the power assembly comprises an air inlet cover, an air pipe, an axial flow fan and an air outlet cover, wherein the air inlet cover is arranged on the fixed frame and communicated with the top of the cavity, the top of the air inlet cover is communicated with the bottom of the air pipe, the axial flow fan is arranged on the air pipe, the top of the air pipe is communicated with the top of the air outlet cover, and the bottom of the air outlet cover faces the ground.

As a preferable scheme of the cowshed ventilation device, the invention comprises the following steps: the first adjusting plate comprises a first movable plate, a first rotating shaft and a first gear, wherein the first movable plate is arranged on two sides of the first rotating shaft, and the first gear is arranged at one end of the first rotating shaft; the second adjusting plate comprises a second movable plate, a second rotating shaft and a second gear, wherein the second movable plate is arranged on two sides of the second rotating shaft, and the second gear is arranged at one end of the second rotating shaft.

As a preferable scheme of the cowshed ventilation device, the invention comprises the following steps: the fixed frame is provided with fixed pipe on one side, and fixed pipe corresponds first gear or second gear setting, and first gear or second gear are located fixed intraductal.

As a preferable scheme of the cowshed ventilation device, the invention comprises the following steps: the driving assembly comprises a toothed plate and a first piston head, the toothed plate is arranged inside the fixed pipe, the toothed plate is arranged corresponding to the first gear or the second gear, the toothed plate is respectively meshed with the first gear or the second gear, the top of the toothed plate is fixedly connected with the first piston head, and the first piston head is slidably connected with the inner wall of the fixed pipe.

As a preferable scheme of the cowshed ventilation device, the invention comprises the following steps: still include control assembly, control assembly includes first drive pipe, second drive pipe, control pipe and connecting pipe, first drive pipe connection control pipe one side, the second drive pipe is connected to the control pipe opposite side, and the inside first drive pipe and the second drive pipe of intercommunication of control pipe, first drive pipe or second drive pipe communicate fixed pipe respectively, connecting pipe one end fixed intercommunication control pipe.

As a preferable scheme of the cowshed ventilation device, the invention comprises the following steps: one side of the control tube is communicated with the first driving tube through the first opening, the other side of the control tube is communicated with the second driving tube through the second opening, the inner end wall of the control tube is fixedly connected with one end of a spring, the other end of the spring is fixedly connected with one side of a second piston head, the other side of the second piston head is fixedly connected with one end of an electric push rod, and the other end of the electric push rod is fixedly connected with a third piston head.

As a preferable scheme of the cowshed ventilation device, the invention comprises the following steps: the first opening is located between the second opening and the connecting tube end.

As a preferable scheme of the cowshed ventilation device, the invention comprises the following steps: the connecting pipe is kept away from control pipe one end relatively and is connected with the regulating part, the regulating part includes cylinder, lead screw, fourth piston head and carousel, cylinder outer wall fixed connection wall body outer wall, cylinder threaded connection lead screw, lead screw one end fixed connection carousel, the fourth piston head is connected in the lead screw other end rotation, fourth piston head sliding connection cylinder inner wall, and cylinder is kept away from lead screw one end relatively and is connected with the connecting pipe.

As a preferable scheme of the cowshed ventilation device, the invention comprises the following steps: the bottom of the air outlet cover is provided with a diversion grid bar.

As a preferable scheme of the cowshed ventilation device, the invention comprises the following steps: the fixed frame is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected with a window frame, and the window frame is provided with a gauze.

The invention has the beneficial effects that: according to the invention, outdoor air enters the cavity through the first adjusting plate, then enters the bottom of the air inlet cover and the air pipe, passes through the top of the air pipe after passing through the axial flow fan, enters the air outlet cover, and blows outdoor fresh air from the top of the cowshed main body to the ground for active ventilation, so that the ventilation efficiency is higher, the turbid air in the cowshed is changed, the ammonia content is reduced, and the freshness of the air in the cowshed is maintained. The ventilation mode can be used for ventilating and ventilating the turbid air in the cowshed through two ventilation modes of passive ventilation and active ventilation, and is various, can adapt to different weather conditions and is convenient to use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic diagram of the overall structure in an embodiment of the present invention.

Fig. 2 is a schematic view of a ventilation assembly according to an embodiment of the present invention.

Fig. 3 is an enlarged schematic view of fig. 2a according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a power assembly according to an embodiment of the invention.

Fig. 5 is a schematic structural diagram of a control component according to an embodiment of the present invention.

Fig. 6 is an enlarged schematic view of fig. 5B in an embodiment of the present invention.

Fig. 7 is a cross-sectional view of a control tube in an embodiment of the invention.

Fig. 8 is a cross-sectional view of an adjustment member in an embodiment of the invention.

In the figure: the cowshed body 100, the wall 101, the ceiling 102, the ventilation assembly 200, the fixed frame 201, the cavity 201a, the first adjusting plate 202, the first movable plate 202a, the first rotating shaft 202b, the first gear 202c, the second adjusting plate 203, the second movable plate 203a, the second rotating shaft 203b, the second gear 203c, the mounting groove 204, the window frame 204a, the gauze 204b, the power assembly 300, the intake cover 301, the ventilation pipe 302, the axial fan 303, the outlet cover 304, the diversion grid 304a, the driving assembly 400, the toothed plate 401, the first piston head 402, the control assembly 500, the first driving pipe 501, the first opening 501a, the second driving pipe 502, the second opening 502a, the control pipe 503, the spring 503a, the second piston head 503b, the electric push rod 503c, the third piston head 503d, the connecting pipe 504, the adjusting piece 505, the cylinder 505a, the lead screw 505b, the fourth piston head 505c, and the turntable 505d.

Description of the embodiments

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Examples

Referring to fig. 1 to 3, in a first embodiment of the present invention, a cowshed ventilation device is provided, which includes a cowshed main body 100, a ventilation assembly 200 and a power assembly 300, wherein the cowshed main body 100 includes a wall 101 and a ceiling 102 disposed on the wall 101; the wall body 101 is used for supporting the ceiling 102, the ceiling 102 can be used for shading sun and rain, the protection effect is achieved on cattle cultivation in the cowshed, the heat preservation effect can be achieved in winter, and a comfortable environment is provided for the growth of the cattle.

The ventilation assembly 200 comprises a fixed frame 201, a first adjusting plate 202 and a second adjusting plate 203, wherein the fixed frame 201 is fixedly arranged on the wall body 101, the first adjusting plate 202 and the second adjusting plate 203 are arranged on the inner wall of the fixed frame 201, and a cavity 201a is formed in front of the first adjusting plate 202 and the second adjusting plate 203; the fixed frame 201 is fixed to be inlayed on the wall body 101 to wall body fixed frame 201 can set up the multiunit, and first regulating plate 202 and second regulating plate 203 can open or close, and when first regulating plate 202 and second regulating plate 203 opened simultaneously, outdoor natural wind can get into in the cowshed, carries out passive ventilation, changes the inside turbid air of cowshed, reduces ammonia content, keeps the fresh air in the cowshed.

The power assembly 300 comprises an air inlet cover 301, an air vent pipe 302, an axial flow fan 303 and an air outlet cover 304, wherein the air inlet cover 301 is arranged on the fixed frame 201, the air inlet cover 301 is communicated with the top of the cavity 201a, the top of the air inlet cover 301 is communicated with the bottom of the air vent pipe 302, the air vent pipe 302 is provided with the axial flow fan 303, the top of the air vent pipe 302 is communicated with the top of the air outlet cover 304, and the bottom of the air outlet cover 304 faces the ground. Under the condition that natural wind does not exist, the first regulating plate 202 is opened, when the second regulating plate 203 is closed, the axial flow fan 303 is started, one side of the axial flow fan 303 close to the bottom of the ventilating pipe 302 is used for air intake, outdoor air enters the cavity 201a through the first regulating plate 202, then enters the bottom of the air intake cover 301 and the bottom of the ventilating pipe 302, passes through the top of the ventilating pipe 302 after passing through the axial flow fan 303, enters the air outlet cover 304, outdoor fresh air is blown into the ground from the top of the cowshed main body 100, active ventilation is performed, the ventilation efficiency is higher, turbid air in the cowshed is changed, the ammonia content is reduced, and the freshness of the air in the cowshed is maintained. The ventilation mode can be used for ventilating and ventilating the turbid air in the cowshed through two ventilation modes of passive ventilation and active ventilation, and is various, can adapt to different weather conditions and is convenient to use.

Examples

Referring to fig. 3 to 8, a second embodiment of the present invention is based on the previous embodiment.

The first adjusting plate 202 comprises a first movable plate 202a, a first rotating shaft 202b and a first gear 202c, wherein the first movable plate 202a is arranged on two sides of the first rotating shaft 202b, and the first gear 202c is arranged at one end of the first rotating shaft 202 b; when the first gear 202c rotates, the first rotating shaft 202b can be driven to rotate, the first rotating shaft 202b drives the first movable plates 202a to rotate, the first movable plates 202a can change the angle after rotating, gaps are formed between the first movable plates 202a, and outdoor air can enter the cavity 201a through the gaps between the first movable plates 202 a.

The second adjusting plate 203 comprises a second movable plate 203a, a second rotating shaft 203b and a second gear 203c, wherein the second movable plate 203a is arranged on two sides of the second rotating shaft 203b, and the second gear 203c is arranged at one end of the second rotating shaft 203 b. The second gear 203c can drive the second pivot 203b to rotate when rotating, and the second pivot 203b drives the second fly leaf 203a to rotate, can change self angle after the second fly leaf 203a rotates, has the space between each second fly leaf 203a, and the air in the cavity 201a can get into the cowshed inside through the space between the second fly leaf 203a, carries out passive ventilation, changes the inside muddy air of cowshed, reduces ammonia content, keeps the air fresh in the cowshed.

A fixed tube 201b is provided at one side of the fixed frame 201, and the fixed tube 201b is provided corresponding to the first gear 202c or the second gear 203c, and the first gear 202c or the second gear 203c is located inside the fixed tube 201 b. The first rotating shaft 202b is close to one end of the first gear 202c, the second rotating shaft 203b is close to one end of the second gear 203c, and the first rotating shaft and the second rotating shaft respectively rotate to penetrate through the pipe wall of the fixed pipe 201b, so that the first gear 202c or the second gear 203c is located inside the fixed pipe 201b, a protection effect on the first gear 202c or the second gear 203c can be achieved, the first gear 202c or the second gear 203c is prevented from being blocked, the first gear 202c or the second gear 203c cannot rotate, and faults occur.

The driving assembly 400, the driving assembly 400 includes a toothed plate 401 and a first piston head 402, the toothed plate 401 is arranged inside the fixed pipe 201b, the toothed plate 401 is arranged corresponding to the first gear 202c or the second gear 203c, the toothed plate 401 is respectively engaged with and connected with the first gear 202c or the second gear 203c, the top of the toothed plate 401 is fixedly connected with the first piston head 402, and the first piston head 402 is slidably connected with the inner wall of the fixed pipe 201 b. When the first piston head 402 moves, the toothed plate 401 can be driven to move, the toothed plate 401 moves to drive the corresponding first gear 202c or second gear 203c to rotate, when the first gear 202c rotates, the first rotating shaft 202b can be driven to rotate, the first rotating shaft 202b can drive the first movable plate 202a to rotate, when the second gear 203c rotates, the second rotating shaft 203b can be driven to rotate, the second rotating shaft 203b can drive the second movable plate 203a to rotate, and the angles of the first movable plate 202a and the second movable plate 203a can be adjusted. When the first adjusting plate 202 and the second adjusting plate 203 are opened simultaneously, the angles of the first movable plate 202a and the second movable plate 203a are adjusted, outdoor natural wind can enter the cowshed, the angles of the first movable plate 202a and the second movable plate 203a which are opened are larger according to weather changes, such as when breeze exists outdoors, the angles of the first movable plate 202a and the second movable plate 203a which are opened are smaller when breeze exists outdoors, the adjustment is more convenient, the adjustment of ventilation is flexible, the turbid air inside the cowshed can be changed, the ammonia content is reduced, and the freshness of the air in the cowshed is maintained

Still include control assembly 500, control assembly 500 includes first drive pipe 501, second drive pipe 502, control pipe 503 and connecting pipe 504, and first drive pipe 501 connects control pipe 503 one side, and control pipe 503 opposite side connects second drive pipe 502 to control pipe 503 inside intercommunication first drive pipe 501 and second drive pipe 502, first drive pipe 501 or second drive pipe 502 communicate fixed pipe 201b respectively, and connecting pipe 504 one end fixed intercommunication control pipe 503.

One side of the control tube 503 is communicated with the first driving tube 501 through a first opening 501a, the other side of the control tube 503 is communicated with the second driving tube 502 through a second opening 502a, the inner end wall of the control tube 503 is fixedly connected with one end of a spring 503a, the other end of the spring 503a is fixedly connected with one side of a second piston head 503b, the other side of the second piston head 503b is fixedly connected with one end of an electric push rod 503c, and the other end of the electric push rod 503c is fixedly connected with a third piston head 503d. When the electric push rod 503c stretches, the second piston head 503b is pushed to move against the elastic force of the spring 503a, air close to one side of the spring 503a inside the control tube 503 is pushed to enter the first driving tube 501 and the second driving tube 502 respectively through the first opening 501a and the second opening 502a, the air pushes the first piston head 402 to move, the first piston head 402 drives the toothed plate 401 to move, the toothed plate 401 moves to drive the corresponding first gear 202c or the second gear 203c to rotate, the first gear 202c can drive the first rotating shaft 202b to rotate when rotating, the first rotating shaft 202b drives the first movable plate 202a to rotate, the second gear 203c can drive the second rotating shaft 203b to rotate when rotating, and the second rotating shaft 203b drives the second movable plate 203a to rotate, so that the angles of the first movable plate 202a and the second movable plate 203a can be adjusted. When the electric pushrod 503c is contracted, the spring 503a pushes the second piston head 503b to return under the action of elastic force.

The first opening 501a is located between the second opening 502a and the end of the connecting tube 504. When the second piston head 503b moves to the position of the first opening 501a, the first movable plate 202a and the second movable plate 203a are parallel to the ground, the opening angle of the first movable plate 202a and the second movable plate 203a is the largest, at the moment, the passive ventilation efficiency is the highest, when the second piston head 503b continues to move to the second opening 502a through the first opening 501a, the air at one side close to the spring 503a inside the control tube 503 enters the second driving tube 502 through the second opening 502a, the air pushes the first piston head 402 to move, the first piston head 402 drives the toothed plate 401 to move, the toothed plate 401 moves to drive the second gear 203c to rotate, the second gear 203c can drive the second rotating shaft 203b and the second movable plate 203a to continue to rotate, the second movable plates 203a gradually stand up, the gaps between the second movable plates 203a gradually decrease, the second movable plates 203a gradually close, at this time, the axial flow fan 303 is started, the side of the axial flow fan 303 close to the bottom of the ventilating pipe 302 is air-in, outdoor air enters the cavity 201a through the first adjusting plate 202, then enters the bottom of the air inlet cover 301 and the ventilating pipe 302, passes through the top of the ventilating pipe 302 after passing through the axial flow fan 303, enters the air outlet cover 304, and outdoor fresh air is blown into the ground from the top of the cowshed main body 100 to perform active ventilation, so that the ventilation efficiency is higher, the turbid air in the cowshed is changed, the ammonia content is reduced, and the freshness of the air in the cowshed is kept. The ventilation mode can be used for ventilating and ventilating the turbid air in the cowshed through two ventilation modes of passive ventilation and active ventilation, and is various, can adapt to different weather conditions and is convenient to use.

The connecting pipe 504 is relatively far away from one end of the control pipe 503 and is connected with the adjusting piece 505, the adjusting piece 505 comprises a cylinder 505a, a screw rod 505b, a fourth piston head 505c and a rotary table 505d, the outer wall of the cylinder 505a is fixedly connected with the outer wall of the wall body 101, the cylinder 505a is in threaded connection with the screw rod 505b, one end of the screw rod 505b is fixedly connected with the rotary table 505d, the other end of the screw rod 505b is rotationally connected with the fourth piston head 505c, the fourth piston head 505c is slidingly connected with the inner wall of the cylinder 505a, and one end of the cylinder 505a relatively far away from the screw rod 505b is connected with the connecting pipe 504. By rotating the turntable 505d to drive the screw rod 505b to rotate, under the action of the threads, the screw rod 505b rotates to push the fourth piston head 505c to slide in the cylinder 505a, the piston head 505c compresses air in the cylinder 505a relatively far away from one end of the screw rod 505b, the air enters the control tube 503 through the connecting tube 504 to drive the third piston head 503d to move, and the third piston head 503d can adjust the positions of the second piston head 503b and the electric push rod 503c in the control tube 503 so as to ensure that when the second piston head 503b moves to the position of the first opening 501a, the first movable plate 202a and the second movable plate 203a are parallel to the ground, the opening angle of the first movable plate 202a and the second movable plate 203a is the largest, and at this time, the passive ventilation efficiency is the highest.

The bottom of the air outlet cover 304 is provided with a diversion grid 304a. The air flowing out from the air outlet cover 304 can be guided by the air guide grid bars 304a, so that the air blown into the cowshed main body 100 can be dispersed more uniformly, and the ventilation efficiency can be improved.

The fixed frame 201 is provided with a mounting groove 204, the inner wall of the mounting groove 204 is fixedly connected with a window frame 204a, and the window frame 204a is provided with a gauze 204b. When the first adjusting plate 202 and the second adjusting plate 203 are opened, the gauze 204b can prevent external mosquitoes from entering the cowshed main body 100, and play a role in putting mosquitoes.

It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims

1. Cowshed breather, its characterized in that: comprising the steps of (a) a step of,

the cowshed comprises a cowshed body (100), wherein the cowshed body (100) comprises a wall body (101) and a ceiling (102) arranged on the wall body (101);

the ventilation assembly (200), the ventilation assembly (200) comprises a fixed frame (201), a first adjusting plate (202) and a second adjusting plate (203), the fixed frame (201) is fixedly installed on a wall body (101), the first adjusting plate (202) and the second adjusting plate (203) are arranged on the inner wall of the fixed frame (201), and a cavity (201 a) is formed between the first adjusting plate (202) and the second adjusting plate (203);

the power assembly (300), power assembly (300) includes inlet cover (301), breather pipe (302), axial fan (303) and give vent to anger cover (304), inlet cover (301) set up on fixed frame (201) to inlet cover (301) intercommunication cavity (201 a) top, inlet cover (301) top intercommunication breather pipe (302) bottom is provided with axial fan (303) on breather pipe (302), breather pipe (302) top intercommunication play gas cover (304) top, play gas cover (304) bottom towards ground;

the first adjusting plate (202) comprises a first movable plate (202 a), a first rotating shaft (202 b) and a first gear (202 c), wherein the first movable plate (202 a) is arranged on two sides of the first rotating shaft (202 b), and the first gear (202 c) is arranged at one end of the first rotating shaft (202 b);

the second adjusting plate (203) comprises a second movable plate (203 a), a second rotating shaft (203 b) and a second gear (203 c), the second movable plate (203 a) is arranged on two sides of the second rotating shaft (203 b), and the second gear (203 c) is arranged at one end of the second rotating shaft (203 b);

a fixed pipe (201 b) is arranged on one side of the fixed frame (201), the fixed pipe (201 b) is arranged corresponding to the first gear (202 c) or the second gear (203 c), and the first gear (202 c) or the second gear (203 c) is positioned inside the fixed pipe (201 b);

the driving assembly (400), the driving assembly (400) comprises a toothed plate (401) and a first piston head (402), the toothed plate (401) is arranged inside the fixed pipe (201 b), the toothed plate (401) is arranged corresponding to the first gear (202 c) or the second gear (203 c), the toothed plate (401) is respectively connected with the first gear (202 c) or the second gear (203 c) in a meshed mode, the top of the toothed plate (401) is fixedly connected with the first piston head (402), and the first piston head (402) is slidably connected with the inner wall of the fixed pipe (201 b);

the control assembly (500), the control assembly (500) comprises a first driving pipe (501), a second driving pipe (502), a control pipe (503) and a connecting pipe (504), wherein the first driving pipe (501) is connected with one side of the control pipe (503), the other side of the control pipe (503) is connected with the second driving pipe (502), the first driving pipe (501) and the second driving pipe (502) are communicated inside the control pipe (503), the first driving pipe (501) or the second driving pipe (502) is respectively communicated with a fixed pipe (201 b), and one end of the connecting pipe (504) is fixedly communicated with the control pipe (503);

one side of the control tube (503) is communicated with the first driving tube (501) through a first opening (501 a), the other side of the control tube (503) is communicated with the second driving tube (502) through a second opening (502 a), the first opening (501 a) is positioned between the second opening (502 a) and the end head of the connecting tube (504), the inner end wall of the control tube (503) is fixedly connected with one end of a spring (503 a), the other end of the spring (503 a) is fixedly connected with one side of a second piston head (503 b), the other side of the second piston head (503 b) is fixedly connected with one end of an electric push rod (503 c), and the other end of the electric push rod (503 c) is fixedly connected with a third piston head (503 d);

the connecting pipe (504) is kept away from control pipe (503) one end relatively and is connected regulating part (505), regulating part (505) are including cylinder (505 a), lead screw (505 b), fourth piston head (505 c) and carousel (505 d), cylinder (505 a) outer wall fixed connection wall body (101) outer wall, cylinder (505 a) threaded connection lead screw (505 b), lead screw (505 b) one end fixed connection carousel (505 d), lead screw (505 b) other end rotation connection fourth piston head (505 c), fourth piston head (505 c) sliding connection cylinder (505 a) inner wall, cylinder (505 a) is kept away from lead screw (505 b) one end relatively and is connected with connecting pipe (504).

2. The cowshed ventilation device of claim 1, wherein: the bottom of the air outlet cover (304) is provided with a diversion grid (304 a).

3. The cowshed ventilation device of claim 1 or 2, wherein: the fixing frame (201) is provided with a mounting groove (204), the inner wall of the mounting groove (204) is fixedly connected with a window frame (204 a), and the window frame (204 a) is provided with a gauze (204 b).