Temperature control adjustable beef cattle shed ventilation device

Abstract

The invention belongs to the technical field of ventilation devices, and discloses a temperature control adjustable beef cattle shed ventilation device which comprises a fixing plate, a flow guide cover is welded to the top of the fixing plate through a plurality of rod pieces, a wind energy transmission assembly is rotationally arranged at the upper end of the flow guide cover, and the wind energy transmission assembly comprises two limiting frames. According to the wind power transmission device, through cooperation of structures such as a wind power transmission assembly and a locking inclined block, the wind power transmission efficiency is improved, the driving force of natural wind is further increased, the rotating blades on the inner side can rotate through the limiting cover, the rotating blades can rotate through the limiting cover, and the wind power transmission efficiency is improved. The windward area is increased, the air inlet amount is further increased, the rotating speed of the first flow guide fan blades is effectively increased to improve the flow guide effect, the double-shaft motor at the bottom can drive ventilation under the condition that no natural wind exists, and it is guaranteed that ventilation treatment can be normally conducted in the cowshed.

Description

Technical Field

[0001] This invention belongs to the field of ventilation device technology, specifically a temperature-controlled adjustable ventilation device for beef cattle sheds. Background Technology

[0002] In beef cattle farming, in order to increase the number of cattle in the barn, the living space of the cattle is usually reduced, and each cow is confined to a narrow space. A large number of cattle in the barn will directly cause the problem of poor air circulation inside the barn. In order to ensure normal air circulation inside the barn, ventilation devices are usually installed in the area connecting the barn to the outside to ensure normal air exchange inside the barn and avoid the problem of diseases caused by foul air to the cattle.

[0003] For example, utility model publication CN221807701U discloses a ventilation and air exchange device for cattle sheds, including a cattle shed and a door. An exhaust assembly is installed on the top of the cattle shed, comprising a duct and a support sleeve. A rotating assembly is installed on the top of the support sleeve, comprising a rotating sleeve and a rain cover. A pushing assembly is installed on the rotating sleeve, comprising a fan blade and a fan blade. An air exchange assembly is installed on the top of the cattle shed, comprising a channel and air holes. An air intake assembly is installed at one end of the cattle shed. This ventilation and air exchange device can evenly and slowly blow cold air downwards through the air holes at the bottom of the channel, preventing hot air from being directly discharged outwards and reducing heat loss. As the cold air flows downwards, it is heated by the hot air inside the cattle shed, preventing cold air from directly blowing onto the cattle and ensuring their growth safety. It also prevents heat from the top of the cattle shed from radiating downwards, avoiding excessively high temperatures inside the cattle shed. It is suitable for ventilation and air exchange in cattle sheds.

[0004] In existing technologies, the rotation of fan blades is controlled by external airflow, which in turn drives the internal fan blades to rotate. The rotating fan blades then guide the airflow inside the cowshed out. Using natural wind to provide driving force for ventilation can effectively reduce costs. However, due to the symmetrical nature of the fan blades, there is relative resistance when the natural wind blows on the fan blades, which prevents the rotational force from being fully transmitted to the internal fan blades. This results in poor fan blade rotation and airflow guiding efficiency, and normal ventilation cannot be carried out when there is no wind. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides a temperature-controlled adjustable ventilation device for beef cattle sheds. This device solves the problem that in existing structures, due to the symmetrical nature of the fan blades, there is relative resistance when natural wind blows on the fan blades, resulting in the rotational force not being fully transmitted to the internal fan blades, leading to poor fan blade rotation and airflow efficiency, and the inability to perform normal ventilation in the absence of wind.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a temperature-controlled adjustable ventilation device for beef cattle sheds, comprising a fixed plate, wherein a flow guide hood is welded to the top of the fixed plate through several sets of rods, and a wind power transmission component is rotatably arranged on the upper end of the flow guide hood; The wind power transmission assembly includes two sets of limiting frames. Two sets of bearing rings are fixedly installed on the inner side of the lower end of the limiting frame and the outer side of the upper end of the guide shroud. A rotating shaft is rotatably installed in the middle of the limiting frame, and a meshing helical gear is installed at the upper end of the rotating shaft. A helical gear transmission shaft is meshed at the top of the meshing helical gear, and rotating blades are installed at both ends of the helical gear transmission shaft. Limiting covers are fixedly installed on both sides of the limiting frame. The rotating blades are rotatably installed inside the limiting covers. Two sets of first guide fan blades are fixedly installed on the outer side of the rotating shaft.

[0007] Preferably, an annular frame is slidably provided on the inner side of the upper end of the flow guide, and four sets of drive plates are rotatably provided on the top of the annular frame via a bracket. A flipping tooth block is rotatably provided on the end of the drive plate away from the annular frame via a bracket, and the flipping tooth block is rotatably provided on the inner side of the upper end of the flow guide.

[0008] Preferably, a limiting toothed ring is fixedly installed on the inner side of the lower end of the limiting frame, the flipping toothed block is rotatably disposed on the inner side of the limiting toothed ring, and a limiting ring is installed on the inner side of the upper end of the flow guide.

[0009] Preferably, a fixed disk is fixedly installed on the outer side of the upper end of the rotating shaft, and a bearing disk is fixedly installed on the fixed disk. The bearing disk and the limiting ring are elastically connected by a return spring.

[0010] Preferably, two sets of guide covers are installed on the front of the limiting cover, a flow guide plate is installed in the middle of the upper end of the two sets of limiting covers, and four sets of sliding rods are installed on the outer side of the lower end of the rotating shaft.

[0011] Preferably, a quick-locking component is provided on the outer side of the sliding rod; The quick-locking assembly includes a fixed bracket, a dual-axis motor is bolted to the bottom of the fixed bracket, and a rotating sleeve is fixedly mounted on the top of the dual-axis motor. The rotating shaft is slidably disposed inside the rotating sleeve. A connecting shaft is mounted on the bottom of the dual-axis motor. Four sets of arc-shaped guide grooves are opened on the outer side of the rotating sleeve, and the rotating shaft is slidably disposed inside the arc-shaped guide grooves.

[0012] Preferably, the rotating sleeve is provided with four sets of support springs, and a locking tilt block is installed on the top of the support springs. The support springs and the locking tilt block are movably disposed on the inner side of the rotating sleeve, and the upper end of the locking tilt block is located on the inner side of the lower end of the arc-shaped guide groove.

[0013] Preferably, a diversion pipe is installed on the inner side of the fixed plate, the first guide fan blade is rotatably disposed on the inner side of the diversion pipe, three sets of air intake pipes are installed on the back of the lower end of the diversion pipe, and two sets of electric push rods are installed on the top of the inner side of the guide shroud, and the electric push rods are fixedly disposed at the bottom of the annular frame.

[0014] Preferably, the lower end of the connecting shaft is provided with a helical gear shaft through helical gear meshing, and the two ends of the helical gear shaft are equipped with second guide fan blades, and a limit bracket is rotatably provided on the outer side of the helical gear shaft.

[0015] Preferably, a positioning cylinder is installed on the outer side of the limiting bracket, and two sets of exhaust pipes are installed on the front and back of the positioning cylinder, respectively. Heating rings are installed at both ends of the positioning cylinder, and an air inlet pipe is installed on the side of the heating ring away from the positioning cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the combination of a wind power transmission component and a locking tilt block, improves the efficiency of wind power transmission and further increases the driving force of natural wind. The inner rotating blades can be rotated by the limiting cover, and the windward area can be increased by the guide cover, further increasing the air intake. Natural wind drives the inner rotating blades to rotate along the helical gear transmission shaft. During the rotation, the helical gear meshes and drives the two sets of first guide fan blades to rotate. During the rotation, suction is generated to discharge air through the intake pipe and the diversion pipe. Natural wind blows the guide plate, which drives the limiting cover to rotate along the bearing ring. The rotation keeps the guide cover facing the windward direction. Then, the electric push rod controls the drive plate to drive the flipping tooth block to embed into the groove of the limiting tooth ring for locking. This ensures the contact area of ​​natural wind, thereby further improving the driving force of natural wind and effectively increasing the rotation speed of the first guide fan blades to improve the guiding effect. Moreover, the dual-shaft motor at the bottom can drive ventilation even when there is no natural wind, ensuring that the cattle shed can be properly ventilated.

[0017] This invention, through the combination of a quick-locking component and a rotating shaft, facilitates the sliding rod to slide along the arc-shaped guide groove via rapid rotation. This pulls the transmission shaft downwards, separating it from the helical gear transmission shaft, thus avoiding the wasteful kinetic energy consumption caused by the rotating blades being driven by a dual-axis motor. The driving force of the dual-axis motor can be transmitted to the rotating shaft through the cooperation of the rotating sleeve and the sliding rod. The arc-shaped guide groove guides and restricts the sliding rod. When the dual-axis motor starts rapidly, it drives the rotating sleeve to rotate rapidly. Under the impact force of rotation, the sliding rod will slide rapidly along the arc-shaped guide groove and compress the locking tilt block and support spring, then slow down. The locking tilt block can restrict the position of the sliding rod. At the same time, the meshing helical gear at the upper end of the rotating shaft is in a disengaged state from the helical gear transmission shaft. Continuing to drive the rotating shaft by the dual-axis motor avoids the transfer of rotational kinetic energy to the rotating blades, thus preventing kinetic energy loss. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the fixing plate structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 5 For the present invention Figure 2 Enlarged structural diagram at point C; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point D; Figure 7 For the present invention Figure 2 Enlarged structural diagram at point E in the middle.

[0019] In the diagram: 100, fixed plate; 101, diverter pipe; 102, flow guide; 103, suction pipe; 104, electric push rod; 001. Quick-locking assembly; 200. Rotating sleeve; 201. Fixed bracket; 202. Dual-axis motor; 203. Arc-shaped guide groove; 204. Support spring; 205. Locking tilt block; 206. Connecting shaft; 002. Wind power transmission component; 300. Limiting gear ring; 301. Bearing ring; 302. Limiting frame; 303. Ring frame; 304. Drive plate; 305. Tilting gear block; 306. Limiting ring; 400. Rotating blade; 401. Rotating shaft; 402. First guide vane; 403. Fixed disk; 404. Bearing disk; 405. Return spring; 406. Meshing helical gear; 407. Helical gear drive shaft; 408. Limit cover; 409. Guide cover; 410. Guide plate; 411. Sliding rod; 500. Exhaust pipe; 501. Positioning cylinder; 502. Heating ring; 503. Intake pipe; 504. Limiting bracket; 505. Second guide fan blade; 506. Helical gear shaft. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 7 As shown, the present invention provides a temperature-controlled adjustable ventilation device for beef cattle sheds, including a fixed plate 100. The top of the fixed plate 100 is welded with a guide hood 102 through several sets of rods, and a wind power transmission component 002 is rotatably arranged on the upper end of the guide hood 102. The wind power transmission assembly 002 includes two sets of limiting frames 302. Two sets of bearing rings 301 are fixedly installed on the inner side of the lower end of the limiting frame 302 and the outer side of the upper end of the guide shroud 102. A rotating shaft 401 is rotatably arranged in the middle of the limiting frame 302, and a meshing helical gear 406 is installed at the upper end of the rotating shaft 401. A helical gear transmission shaft 407 is meshed at the top of the meshing helical gear 406, and rotating blades 400 are installed at both ends of the helical gear transmission shaft 407. Limiting covers 408 are fixedly installed on both sides of the limiting frame 302. The rotating blades 400 are rotatably arranged inside the limiting cover 408. Two sets of first guide fan blades 402 are fixedly installed on the outer side of the rotating shaft 401.

[0022] The above-mentioned solution employs a system where the fixing plate 100 consists of two sets of inclined plates, adaptable to the roof structure of the cattle shed. Through assembly, it can be secured with bolts to ensure the stability of the overall equipment. The guide hood 102 diverts rainwater, preventing it from entering the inner side of the diversion pipe 101. The guide hood 102 is welded to the diversion pipe 101 via multiple sets of rods, effectively ensuring the stability and strength of the top structure. The limiting frame 302 provides restraint for the inner structure and is connected to the guide hood 102 via a bearing ring 301, ensuring that the limiting frame 302 can rotate and adjust along the axis of the guide hood 102. Adjustment allows for the modification of the structure. The angle of the upper structure is adapted to the wind direction, and kinetic energy can be transmitted through the rotating shaft 401 to ensure that the rotation structure at the top can be driven and adjusted. The meshing helical gear 406 and the helical gear on the helical gear transmission shaft 407 can maintain a meshing state. After meshing, the rotation of the helical gear transmission shaft 407 will drive the meshing helical gear 406 and the rotating shaft 401 to rotate synchronously and adjust. The limiting cover 408 can restrict the inner rotating blade 400, and the rotating blade 400 can rotate rapidly along the inner side of the limiting cover 408 under the push of the airflow. The first guide fan blade 402 can rotate to generate suction for airflow transmission.

[0023] like Figure 2 - Figure 4 As shown, an annular frame 303 is slidably arranged on the inner side of the upper end of the flow guide 102, and four sets of drive plates 304 are rotatably arranged on the top of the annular frame 303 via a bracket. A flipping tooth block 305 is rotatably arranged on the end of the drive plate 304 away from the annular frame 303 via a bracket, and the flipping tooth block 305 is rotatably arranged on the inner side of the upper end of the flow guide 102.

[0024] A limiting toothed ring 300 is fixedly installed on the inner side of the lower end of the limiting frame 302, and a flipping toothed block 305 is rotatably set on the inner side of the limiting toothed ring 300. A limiting ring 306 is installed on the inner side of the upper end of the flow guide 102.

[0025] A fixed disk 403 is fixedly installed on the outer side of the upper end of the rotating shaft 401, and a bearing disk 404 is fixedly installed on the fixed disk 403. The bearing disk 404 and the limiting ring 306 are elastically connected by a return spring 405.

[0026] Two sets of guide covers 409 are installed on the front of the limiting cover 408, a flow guide plate 410 is installed in the middle of the upper end of the two sets of limiting covers 408, and four sets of sliding rods 411 are installed on the outer side of the lower end of the rotating shaft 401.

[0027] Using the above solution: the annular frame 303 can restrict the top structure and slide along the inner side of the guide shroud 102. The drive plate 304 can control the flipping tooth block 305 to flip along the guide shroud 102. During the flipping process, the flipping tooth block 305 will be embedded in the tooth groove of the limiting tooth ring 300, thereby locking and restricting the limiting tooth ring 300 and the outer limiting frame 302. The limiting ring 306 can slide and restrict the inner rotating shaft 401, and can... The structure supporting the return spring 405 allows the fixed plate 403 and bearing plate 404 to work with the limiting ring 306 to compress the return spring 405. Conversely, the return spring 405 can push the fixed plate 403, rotating shaft 401 and meshing helical gear 406 to rise and mesh with the helical gear transmission shaft 407, ensuring the transmission of kinetic energy. The guide cover 409 can increase the windward area and improve the air intake. The sliding rod 411 can rotate to contact the rotating sleeve 200 to drive the rotating sleeve 200 for synchronous adjustment.

[0028] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a quick-locking component 001 is provided on the outer side of the sliding rod 411; The quick-locking component 001 includes a fixed bracket 201. A dual-axis motor 202 is bolted to the bottom of the fixed bracket 201, and a rotating sleeve 200 is fixedly mounted on the top of the dual-axis motor 202. A rotating shaft 401 is slidably disposed inside the rotating sleeve 200. A connecting shaft 206 is mounted on the bottom of the dual-axis motor 202. Four sets of arc-shaped guide grooves 203 are opened on the outer side of the rotating sleeve 200, and the rotating shaft 401 is slidably disposed inside the arc-shaped guide grooves 203.

[0029] The rotating sleeve 200 is provided with four sets of support springs 204, and a locking tilt block 205 is installed on the top of the support springs 204. The support springs 204 and the locking tilt block 205 are movably disposed inside the rotating sleeve 200, and the upper end of the locking tilt block 205 is located inside the lower end of the arc-shaped guide groove 203.

[0030] A diversion pipe 101 is installed on the inner side of the fixed plate 100. The first guide fan blade 402 is rotatably set on the inner side of the diversion pipe 101. Three sets of suction pipes 103 are installed on the back of the lower end of the diversion pipe 101. Two sets of electric push rods 104 are installed on the top of the inner side of the guide shroud 102, and the electric push rods 104 are fixedly set on the bottom of the ring frame 303.

[0031] Using the above scheme: the fixed bracket 201 can restrict the dual-axis motor 202, which can drive the bottom connecting shaft 206 and rotating sleeve 200 to rotate and adjust. The rotating sleeve 200 can cooperate with the sliding rod 411 to drive the rotating shaft 401 to rotate and adjust. The arc-shaped guide groove 203 can guide the sliding rod 411. The internal support spring 204 can push the locking tilt block 205 outward. After outward, it will push the locking tilt block 205 to restrict the sliding rod 411 inside the arc-shaped guide groove 203. The diversion pipe 101 can guide and concentrate the airflow and discharge it through the upper end of the diversion pipe 101. The air in the air in the cowshed can be guided and discharged through the air suction pipe 103. The electric push rod 104 can push the ring frame 303 to adjust its height.

[0032] like Figure 7 As shown, the lower end of the connecting shaft 206 is provided with a helical gear shaft 506 through helical gear meshing, and the two ends of the helical gear shaft 506 are equipped with second guide fan blades 505. A limit bracket 504 is rotatably provided on the outer side of the helical gear shaft 506.

[0033] A positioning cylinder 501 is installed on the outside of the limiting bracket 504, and two sets of exhaust pipes 500 are installed on the front and back of the positioning cylinder 501 respectively. Heating rings 502 are installed at both ends of the positioning cylinder 501, and an air inlet pipe 503 is installed on the side of the heating ring 502 away from the positioning cylinder 501.

[0034] Using the above scheme: the rotational kinetic energy of the connecting shaft 206 can be transmitted by the helical gear shaft 506, and the airflow at the end can be drawn in and concentrated in the area of ​​the positioning cylinder 501 by the second guide fan blades 505 rotating in opposite directions at both ends. During the flow, the airflow can be heated by the heating ring 502, and the cooling ring can be replaced to provide auxiliary cooling. Finally, the airflow is discharged through the exhaust pipe 500 to ventilate the inside of the cattle shed.

[0035] The working principle and usage process of this invention: The guide plate 410 is driven by natural wind to rotate the limiting cover 408 and the limiting frame 302 along the bearing ring 301 to adjust the angle. After the adjustment is completed, the electric push rod 104 will push the ring frame 303 to rise. After rising, the drive plate 304 will drive the flipping tooth block 305 to flip and embed into the tooth groove of the limiting tooth ring 300 for locking. Guided by the guide cover 409, the natural wind will enter the interior of the limiting cover 408. During the entry process, it will drive the two sets of rotating blades 400 to rotate synchronously. At the same time, the rotation will drive the helical gear transmission shaft 407 in the middle to rotate. Through the meshing of the helical gear 406, the bottom rotating shaft 401 can be driven to rotate synchronously. Finally, the first guide fan blade 402 will rotate, guiding the airflow from the end of the intake pipe 103 to the upper end of the diversion pipe 101 for discharge. At the same time, the sliding rod 411 at the bottom will push the rotating sleeve 200 and the bottom connecting shaft 206 to rotate synchronously. And through the helical gear, the helical gear shaft 506 and the second guide fan blade 505 inside the lower positioning cylinder 501 will rotate to generate suction to guide the airflow. When ventilation is performed in a windless state, the dual-axis motor 202 drives the rotating sleeve 200 to rotate rapidly. During the rotation, the sliding rod 411 will slide rapidly along the arc-shaped guide groove 203 and press the locking tilt block 205 to retract. Under the push of the support spring 204, the locking tilt block 205 will quickly reset to restrict the sliding rod 411. The dual-axis motor 202 will slow down and continue to rotate. After the sliding rod 411 is locked, the meshing helical gear 406 at the upper end of the rotating shaft 401 will separate from the helical gear transmission shaft 407. At the same time, the first guide fan blade 402 and the second guide fan blade 505 will rotate normally for ventilation.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature-controlled adjustable ventilation device for beef cattle sheds, comprising a fixed plate (100), characterized in that: The top of the fixed plate (100) is welded with a flow guide (102) by several sets of rods, and a wind power transmission component (002) is rotatably installed on the upper end of the flow guide (102). The wind power transmission assembly (002) includes two sets of limiting frames (302). Two sets of bearing rings (301) are fixedly installed on the inner side of the lower end of the limiting frame (302) and the outer side of the upper end of the guide shroud (102). A rotating shaft (401) is rotatably arranged in the middle of the limiting frame (302), and a meshing helical gear (406) is installed at the upper end of the rotating shaft (401). A helical gear transmission shaft (407) is meshed at the top of the meshing helical gear (406), and rotating blades (400) are installed at both ends of the helical gear transmission shaft (407). Limiting covers (408) are fixedly installed on both sides of the limiting frame (302). The rotating blades (400) are rotatably arranged inside the limiting cover (408). Two sets of first guide fan blades (402) are fixedly installed on the outer side of the rotating shaft (401).

2. The temperature-controlled adjustable ventilation device for beef cattle sheds according to claim 1, characterized in that: An annular frame (303) is slidably provided on the inner side of the upper end of the flow guide (102), and four sets of drive plates (304) are rotatably provided on the top of the annular frame (303) via a bracket. A flipping tooth block (305) is rotatably provided on the end of the drive plate (304) away from the annular frame (303) via a bracket, and the flipping tooth block (305) is rotatably provided on the inner side of the upper end of the flow guide (102).

3. The temperature-controlled adjustable ventilation device for beef cattle sheds according to claim 2, characterized in that: A limiting toothed ring (300) is fixedly installed on the inner side of the lower end of the limiting frame (302), the flipping tooth block (305) is rotatably set on the inner side of the limiting toothed ring (300), and a limiting ring (306) is installed on the inner side of the upper end of the flow guide (102).

4. The temperature-controlled adjustable ventilation device for beef cattle sheds according to claim 3, characterized in that: A fixed disk (403) is fixedly installed on the outer side of the upper end of the rotating shaft (401), and a bearing disk (404) is fixedly installed on the fixed disk (403). The bearing disk (404) and the limiting ring (306) are elastically connected by a return spring (405).

5. The temperature-controlled adjustable ventilation device for beef cattle sheds according to claim 4, characterized in that: Two sets of guide covers (409) are installed on the front of the limiting cover (408), and a flow guide plate (410) is installed in the middle of the upper end of the two sets of limiting covers (408). Four sets of sliding rods (411) are installed on the outer side of the lower end of the rotating shaft (401).

6. The temperature-controlled adjustable ventilation device for beef cattle sheds according to claim 5, characterized in that: A quick-locking assembly (001) is provided on the outside of the sliding rod (411). The quick-locking assembly (001) includes a fixed bracket (201), a dual-axis motor (202) is bolted to the bottom of the fixed bracket (201), and a rotating sleeve (200) is fixedly mounted on the top of the dual-axis motor (202). The rotating shaft (401) is slidably disposed on the inner side of the rotating sleeve (200). A connecting shaft (206) is mounted on the bottom of the dual-axis motor (202). Four sets of arc-shaped guide grooves (203) are opened on the outer side of the rotating sleeve (200), and the rotating shaft (401) is slidably disposed on the inner side of the arc-shaped guide grooves (203).

7. The temperature-controlled adjustable ventilation device for beef cattle sheds according to claim 6, characterized in that: The rotating sleeve (200) is provided with four sets of support springs (204) inside, and a locking tilt block (205) is installed on the top of the support spring (204). The support spring (204) and the locking tilt block (205) are movably arranged inside the rotating sleeve (200), and the upper end of the locking tilt block (205) is located inside the lower end of the arc-shaped guide groove (203).

8. The temperature-controlled adjustable ventilation device for beef cattle sheds according to claim 1, characterized in that: A diversion pipe (101) is installed on the inner side of the fixed plate (100). The first guide fan blade (402) is rotatably disposed on the inner side of the diversion pipe (101). Three sets of suction pipes (103) are installed on the back of the lower end of the diversion pipe (101). Two sets of electric push rods (104) are installed on the top of the inner side of the guide shroud (102), and the electric push rods (104) are fixedly disposed on the bottom of the ring frame (303).

9. The temperature-controlled adjustable ventilation device for beef cattle sheds according to claim 6, characterized in that: The lower end of the connecting shaft (206) is provided with a helical gear shaft (506) through helical gear meshing, and the two ends of the helical gear shaft (506) are equipped with second guide fan blades (505). A limit bracket (504) is rotatably provided on the outer side of the helical gear shaft (506).

10. The temperature-controlled adjustable ventilation device for beef cattle sheds according to claim 9, characterized in that: The limiting bracket (504) is equipped with a positioning cylinder (501) on its outer side, and two sets of exhaust pipes (500) are installed on the front and back of the positioning cylinder (501) respectively. Heating rings (502) are installed at both ends of the positioning cylinder (501), and an air inlet pipe (503) is installed on the side of the heating ring (502) away from the positioning cylinder (501).

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