Negative pressure ventilation type sunny and sunny shed

Abstract

The invention relates to the technical field of greenhouses, and particularly discloses a negative pressure ventilation type sunny and sunny greenhouse which comprises a mounting ground, a sunny and sunny greenhouse component is mounted at the top of the mounting ground, and an air pressure assembly is fixedly connected to the top of the sunny and sunny greenhouse component and comprises a guiding and positioning assembly. A sliding positioning assembly is arranged on the inner side of the guiding positioning assembly, and the top of the guiding positioning assembly is fixedly connected with a pressure pushing assembly. In the using process, sunny and high-temperature-required vegetables are planted in the space formed by the first sealing film, the front sealing plate, the back sealing plate and the heat preservation isolation plate; and shade-loving and low-temperature-required vegetables or mushroom vegetables are planted in a space formed by the second sealing film, the front sealing plate, the back sealing plate and the heat preservation isolation plate, so that the vegetables with different habits can be planted at the same time in the use process of the shade and sunny greenhouse, and the planting efficiency is conveniently guaranteed.

Description

Technical Field

[0001] This invention relates to the field of greenhouse technology, and more specifically to a negative pressure ventilation type yin-yang greenhouse. Background Technology

[0002] With the rapid development of modern agriculture, facility agriculture has become an important means to improve crop yield and quality. While traditional greenhouses can provide a relatively stable growing environment for crops, they have many limitations in practical application. First, traditional greenhouses typically only provide a single temperature and light environment, failing to simultaneously meet the growth needs of crops with different growth habits. Sun-loving vegetables require higher temperatures and ample light, while shade-loving vegetables or fungi require relatively lower temperatures and moderate light conditions. This limitation of a single environment forces growers to choose to plant only one type of crop, significantly reducing land use efficiency and planting diversity, and making it impossible to achieve the goal of simultaneously growing different types of vegetables within a single greenhouse.

[0003] Secondly, existing greenhouse temperature control systems have significant shortcomings, relying primarily on manual operation or complex mechanical equipment for temperature control. Traditional temperature control methods typically require the installation of auxiliary facilities such as fans and heating equipment, which not only increases equipment costs and energy consumption but also necessitates frequent manual intervention and maintenance. When the temperature inside the greenhouse is too high, existing ventilation systems often cannot accurately control the temperature distribution and adjustment range, easily causing excessive temperature fluctuations that affect the normal growth of crops. Simultaneously, the operation of these mechanical devices generates noise and vibration, adversely impacting the crop growing environment. More importantly, existing temperature control systems lack automated control functions and cannot automatically adjust according to actual temperature changes inside the greenhouse, requiring growers to constantly monitor and manually operate them, increasing labor intensity and management difficulty.

[0004] Furthermore, traditional greenhouses face technological bottlenecks in terms of space utilization and temperature zoning management. Existing greenhouse structures cannot achieve effective temperature zoning. When different temperature environments need to be created within the same greenhouse, physical partitions or multiple independent temperature control systems are often required. This not only increases construction costs but also reduces space utilization. Especially when precise temperature control of different areas is needed, current technology struggles to achieve accurate temperature regulation and automatic balancing. In addition, the air pressure regulation mechanism of traditional greenhouses is inadequate, failing to utilize natural air pressure changes for automatic temperature regulation, thus missing opportunities for energy-saving and environmentally friendly control.

[0005] Finally, existing greenhouse technologies still need improvement in terms of user-friendliness and equipment adjustability. Most temperature control systems have fixed adjustment parameters, making it impossible to flexibly adjust them according to the specific needs of different seasons and crops. Growers find it difficult to easily adjust the greenhouse's temperature control thresholds and response mechanisms based on actual planting needs and environmental changes. This lack of flexibility limits the applicability of greenhouses and fails to meet the requirements of modern precision agriculture for precise and convenient environmental control. Therefore, there is an urgent need to develop a new greenhouse technology that can automatically adjust temperature, enable zoned planting, is easy to operate, and is energy-efficient and environmentally friendly, in order to solve the above-mentioned technical problems and improve the efficiency and effectiveness of facility agriculture. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a negative pressure ventilation type yin-yang shed to solve the problems existing in the background art.

[0007] This invention provides the following technical solution: a negative pressure ventilation type yin-yang canopy, including an installation ground, a yin-yang canopy component installed on the top of the installation ground, a pneumatic component fixedly connected to the top of the yin-yang canopy component, the pneumatic component including a guide positioning component, a sliding positioning component provided on the inner side of the guide positioning component, a pressure pushing component fixedly connected to the top of the guide positioning component, a pressure relief component fixedly connected to the top of the pressure pushing component, the guide positioning component including a first guide positioning frame, an exhaust pipe fixedly connected to the bottom of the first guide positioning frame, a sealing positioning strip installed on the bottom of the outer side of the exhaust pipe, a first sliding positioning groove opened on one side of the first guide positioning frame, and an exhaust groove opened on one side of the top of the first guide positioning frame.

[0008] Furthermore, the yin-yang canopy component includes a front sealing plate, an insulation plate fixedly connected to the back of the front sealing plate, a first support frame fixedly connected to one side of the insulation plate, a second support frame fixedly connected to the other side of the front sealing plate, a first sealing film fixedly connected to the outer side of the first support frame, a second sealing film fixedly connected to the outer side of the second support frame, a back sealing plate fixedly connected to the back of the insulation plate, a first positioning notch provided at the top of the first sealing film, an entry buffer chamber installed on the front of the front sealing plate, door panels fixedly connected to both the front and back of the entry buffer chamber, a second positioning notch provided on the side of the insulation plate, a sliding positioning port provided on the side of the insulation plate, and a first convex groove provided on both the front and back of the sliding positioning port.

[0009] Furthermore, the sliding positioning assembly includes a sliding sealing plate, a second sliding positioning groove is provided on one side of the sliding sealing plate, a pushing membrane is installed on the top of the sliding sealing plate, a first limiting plate is provided on the inner side of the second sliding positioning groove, a telescopic block is fixedly connected to one side of the first limiting plate, a pneumatic pushing plate is fixedly connected to one side of the telescopic block, and a first spring is fixedly connected to the other side of the first limiting plate.

[0010] Furthermore, the pressure pushing component includes a second guide positioning frame, a pushing groove is provided on the other side of the bottom of the second guide positioning frame, a telescopic positioning column is fixedly connected to one side of the top of the second guide positioning frame, a limiting circular plate is provided on the inner side of the telescopic positioning column, a telescopic column is fixedly connected to the top of the limiting circular plate, a sliding push plate is provided on the inner side of the second guide positioning frame, and a limiting strip is fixedly connected to one side of the pushing groove inside the second guide positioning frame.

[0011] Furthermore, the pressure relief assembly includes an exhaust frame, a pull positioning groove is fixedly connected to the other side of the top of the exhaust frame, a second spring is fixedly connected to the top of the inner side of the pull positioning groove, a sealing sliding strip is fixedly connected to the bottom of the second spring, a convex sliding groove is fixedly connected to both the front and back of the sealing sliding strip, and a push plate is fixedly connected to the end of the sealing sliding strip away from the second spring.

[0012] Furthermore, the cross-sectional dimensions of the first guide positioning frame are clearance-fitted with the projected dimensions of the side of the guide positioning component; the cross-sectional dimensions of the first positioning notch are clearance-fitted with the projected dimensions of the bottom of the pressure relief component; the bottom of the pressure relief component has an arc, the diameter of the arc of the pressure relief component is the same as the diameter of the inner side of the first sealing film; the diameter of the outer side of the first support frame is clearance-fitted with the diameter of the inner side of the first sealing film; the cross-sectional dimensions of the sliding positioning port are clearance-fitted with the cross-sectional dimensions of the sealing sliding strip; and the cross-sectional dimensions of the convex sliding groove are clearance-fitted with the cross-sectional dimensions of the first convex groove.

[0013] Furthermore, the cross-sectional dimensions of the inner side of the first sliding positioning groove are fitted with the projected dimensions of the side of the sliding sealing plate with a clearance. The dimensions of the side of the sliding sealing plate are the same as the dimensions of the side of the pneumatic push plate. A storage groove is provided on the top of the sliding sealing plate. The storage groove of the sliding sealing plate is connected to the second sliding positioning groove. The push film seals the bottom of the push film. The storage groove of the sliding sealing plate can store the push film.

[0014] Furthermore, the cross-sectional dimensions of the inner side of the second guide positioning frame are fitted with a clearance fit to the dimensions of the side of the sliding push plate, the top of the telescopic positioning column is provided with a storage groove, the diameter of the inner side of the telescopic positioning column is fitted with a clearance fit to the diameter of the limiting circular plate, and the diameter of the top and bottom openings of the telescopic positioning column is fitted with a clearance fit to the diameter of the telescopic column.

[0015] Furthermore, a convex groove is provided on the front and back sides of the other side inside the exhaust frame. The cross-sectional dimensions of the convex groove of the exhaust frame are matched with the cross-sectional dimensions of the convex sliding groove. The length inside the exhaust frame is matched with the width of the sealing sliding strip. The bottom of the push plate is fixedly connected to the top of the telescopic column. The cross-sectional dimensions of the push groove are the same as the cross-sectional dimensions of the top receiving groove of the sliding sealing plate.

[0016] The technical effects and advantages of this invention are as follows: 1. In the process of using this invention, vegetables that prefer sunlight and require higher temperatures are planted in the space formed by the first sealing film, the front sealing plate, the back sealing plate, and the heat insulation isolation plate, while vegetables that prefer shade and require lower temperatures or fungi are planted in the space formed by the second sealing film, the front sealing plate, the back sealing plate, and the heat insulation isolation plate. This allows the shading greenhouse to grow vegetables with different growing habits at the same time, which helps to ensure planting efficiency. 2. During use, the sealing positioning strip is removed. As sunlight shines on the first sealing film, the temperature inside the space formed by the first sealing film, the front sealing plate, the back sealing plate, and the thermal insulation plate rises. This increases the pressure inside the space, pushing the sliding positioning component to move to the other side of the first sliding positioning groove. As the pressure continues to rise, the sliding positioning component continues to move to the other side until one side of the sliding positioning component reaches the top of the exhaust pipe. At this point, the first sealing film, the front sealing plate, the back sealing plate, and the thermal insulation plate... The gas inside the formed space will enter the second sealing film, front sealing plate, back sealing plate and heat insulation plate through the first sliding positioning groove and exhaust pipe. After the temperature inside the space of the first sealing film, front sealing plate, back sealing plate and heat insulation plate reaches the temperature of the plants inside, if the temperature continues to rise, the high temperature gas will be discharged into the second sealing film, front sealing plate, back sealing plate and heat insulation plate under the action of pressure. This allows the temperature inside the space of the second sealing film, front sealing plate, back sealing plate and heat insulation plate to be controlled, so that users can adjust the temperature on both sides according to the vegetables being grown, and users can adjust the temperature on both sides of the shaded greenhouse according to the actual planting needs. 3. The present invention can install a handle on the side of the pneumatic push plate away from the telescopic block. After each round of work each day, or before use in the morning, the user can adjust the position of the sliding positioning component inside the guide positioning component. This allows the user to adjust the pressure of the pneumatic component to release pressure according to actual needs, and to adjust the temperature of the equipment according to the actual needs of the vegetables. Attached Figure Description

[0017] 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 overall structure of the present invention; Figure 3 This is a schematic diagram of the structure of the yin-yang canopy component of the present invention; Figure 4 For the present invention Figure 3 A magnified structural diagram at point A; Figure 5 This is a schematic diagram of the pneumatic assembly structure of the present invention; Figure 6 This is a schematic diagram of the guiding and positioning component structure of the present invention; Figure 7 This is a schematic diagram of the sliding positioning component structure of the present invention; Figure 8 This is a schematic diagram of the pressure-driven component structure of the present invention; Figure 9 This is a schematic diagram of the pressure relief assembly structure of the present invention.

[0018] The attached diagram is labeled as follows: 1. Installation ground; 2. Yin-Yang canopy components; 201. Front sealing plate; 202. Thermal insulation board; 203. First support frame; 204. Second support frame; 205. First sealing film; 206. Second sealing film; 207. Back sealing plate; 208. First positioning notch; 209. Entry buffer chamber; 2010. Door panel; 2011. Second positioning notch; 2012. Sliding positioning port; 2013. First convex groove; 3. Pneumatic assembly; 301. Guide positioning assembly; 3011. First guide positioning frame; 3012. Exhaust pipe; 3013. Sealing positioning strip; 3014. First sliding positioning groove; 3015. Exhaust groove; 302. Sliding positioning assembly; 3021, sliding sealing plate; 3022, second sliding positioning groove; 3023, pushing membrane; 3024, first limiting plate; 3025, telescopic block; 3026, pneumatic pushing plate; 3027, first spring; 303, pressure pushing assembly; 3031, second guide positioning frame; 3032, pushing groove; 3033, limiting strip; 3034, sliding push plate; 3035, telescopic positioning post; 3036, limiting circular plate; 3037, telescopic post; 304, pressure relief assembly; 3041, exhaust frame; 3042, pull positioning groove; 3043, second spring; 3044, sealing sliding strip; 3045, convex sliding groove; 3046, pushing plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The negative pressure ventilation type yin-yang shed involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Reference Figures 1 to 9 This invention provides a negative pressure ventilation type yin-yang shed, including an installation ground 1, a yin-yang shed component 2 installed on the top of the installation ground 1, a pneumatic component 3 fixedly connected to the top of the yin-yang shed component 2, the pneumatic component 3 including a guide positioning component 301, a sliding positioning component 302 provided on the inner side of the guide positioning component 301, a pressure pushing component 303 fixedly connected to the top of the guide positioning component 301, a pressure relief component 304 fixedly connected to the top of the pressure pushing component 303, the guide positioning component 301 including a first guide positioning frame 3011, an exhaust pipe 3012 fixedly connected to the bottom of the first guide positioning frame 3011, a sealing positioning strip 3013 installed on the bottom of the outer side of the exhaust pipe 3012, a first sliding positioning groove 3014 opened on one side of the first guide positioning frame 3011, and an exhaust groove 3015 opened on one side of the top of the first guide positioning frame 3011.

[0021] In a preferred embodiment, the yin-yang canopy component 2 includes a front sealing plate 201, an insulation partition plate 202 fixedly connected to the back of the front sealing plate 201, a first support frame 203 fixedly connected to one side of the insulation partition plate 202, a second support frame 204 fixedly connected to the other side of the front sealing plate 201, a first sealing film 205 fixedly connected to the outside of the first support frame 203, a second sealing film 206 fixedly connected to the outside of the second support frame 204, a back sealing plate 207 fixedly connected to the back of the insulation partition plate 202, a first positioning notch 208 provided at the top of the first sealing film 205, an entry buffer chamber 209 installed on the front of the front sealing plate 201, and door panels 2 fixedly connected to both the front and back of the entry buffer chamber 209. 010, the side of the insulation isolation board 202 is provided with a second positioning notch 2011, and the side of the insulation isolation board 202 is provided with a sliding positioning port 2012. The front and back of the sliding positioning port 2012 are provided with a first convex groove 2013. During use, vegetables that prefer sunlight and require higher temperatures are planted in the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207 and the insulation isolation board 202, while vegetables that prefer shade and require lower temperatures or mushrooms are planted in the space formed by the second sealing film 206, the front sealing plate 201, the back sealing plate 207 and the insulation isolation board 202. This allows the shading greenhouse to grow vegetables with different growing habits at the same time, which helps to ensure planting efficiency.

[0022] In a preferred embodiment, the sliding positioning assembly 302 includes a sliding sealing plate 3021. A second sliding positioning groove 3022 is formed on one side of the sliding sealing plate 3021. A pushing membrane 3023 is installed on the top of the sliding sealing plate 3021. A first limiting plate 3024 is provided inside the second sliding positioning groove 3022. A telescopic block 3025 is fixedly connected to one side of the first limiting plate 3024. A pneumatic pushing plate 3026 is fixedly connected to one side of the telescopic block 3025. A first spring 3027 is fixedly connected to the other side of the first limiting plate 3024. During use, the sealing positioning strip 3013 is removed. As sunlight shines on the first sealing film 205, the temperature inside the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202 rises. This increases the pressure inside the space, which in turn increases the pressure. The increased pressure then pushes the sliding positioning component 302 to move to the other side of the first sliding positioning groove 3014. The continuous upward movement causes the sliding positioning component 302 to move continuously to the other side until one side of the sliding positioning component 302 moves to the top of the exhaust pipe 3012. At this point, the gas inside the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202 will enter the second sealing film 206, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202 through the first sliding positioning groove 3014 and the exhaust pipe 3012. Once the temperature inside the space of the front sealing plate 207 and the heat insulation isolation plate 202 reaches the temperature of the plants inside, if the temperature continues to rise, the high-temperature gas will be discharged into the second sealing film 206, the front sealing plate 201, the back sealing plate 207 and the heat insulation isolation plate 202 under the action of pressure. This allows the temperature inside the space of the second sealing film 206, the front sealing plate 201, the back sealing plate 207 and the heat insulation isolation plate 202 to be controlled, making it convenient for users to adjust the temperature on both sides according to the vegetables being grown, and to adjust the temperature on both sides of the shaded greenhouse according to the actual planting needs.

[0023] In a preferred embodiment, the pressure pushing assembly 303 includes a second guide positioning frame 3031, a pushing groove 3032 is provided on the other side of the bottom of the second guide positioning frame 3031, a telescopic positioning post 3035 is fixedly connected to one side of the top of the second guide positioning frame 3031, a limiting circular plate 3036 is provided on the inner side of the telescopic positioning post 3035, a telescopic post 3037 is fixedly connected to the top of the limiting circular plate 3036, a sliding push plate 3034 is provided on the inner side of the second guide positioning frame 3031, and a limiting strip 3033 is fixedly connected to one side of the second guide positioning frame 3031 located in the pushing groove 3032.

[0024] In a preferred embodiment, the pressure relief assembly 304 includes an exhaust frame 3041, a pull positioning groove 3042 is fixedly connected to the other side of the top of the exhaust frame 3041, a second spring 3043 is fixedly connected to the top of the inner side of the pull positioning groove 3042, a sealing sliding strip 3044 is fixedly connected to the bottom of the second spring 3043, a convex sliding groove 3045 is fixedly connected to both the front and back of the sealing sliding strip 3044, and a push plate 3046 is fixedly connected to the end of the sealing sliding strip 3044 away from the second spring 3043.After the temperatures in the spaces formed by the first sealing film 205, front sealing plate 201, back sealing plate 207, and heat insulation plate 202, and the spaces formed by the second sealing film 206, front sealing plate 201, back sealing plate 207, and heat insulation plate 202, all reach a suitable temperature for the vegetables inside, the exhaust pipe 3012 is blocked by the sealing positioning strip 3013 to prevent the high-temperature gas inside the spaces of the first sealing film 205, front sealing plate 201, back sealing plate 207, and heat insulation plate 202 from continuously entering the spaces of the second sealing film 206, front sealing plate 201, back sealing plate 207, and heat insulation plate 202. Then, the first sealing film 205, front sealing plate 201, and back sealing plate 207... As the internal temperature of the space formed by the thermal insulation plate 202 continues to rise, the pneumatic push plate 3026 and the telescopic block 3025 move towards the inside of the second sliding positioning groove 3022, squeezing the liquid inside the second sliding positioning groove 3022 into the push membrane 3023, causing the push membrane 3023 to unfold and elongate, then enter the second guide positioning frame 3031 through the push groove 3032, and then move to one side through the sliding push plate 3034, squeezing the liquid inside the second guide positioning frame 3031, causing the limiting circular plate 3036 and the telescopic column 3037 to rise, pushing the push plate 3046 to rise, and then causing the sealing sliding strip 3044 and the convex sliding groove 3045 to slide through the sliding groove 3045. The positioning port 2012 and the first convex groove 2013 are guided to move, which then causes the other side of the exhaust frame 3041 sealed by the sealing sliding strip 3044 to open a gap. This allows the internal air pressure in the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202 to leak out, thereby controlling the internal temperature of the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202. After the internal temperature decreases, the temperature of the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202 also decreases. Then, the first spring 3027 pushes the first limiting plate 3024 and the telescopic block 3... 025 and the pneumatic push plate 3026 rebound, then draw the liquid inside the push membrane 3023 back into the second sliding positioning groove 3022, then the push membrane 3023 returns to its original position. Then, under the pull of the second spring 3043, the sealing sliding strip 3044 and the convex sliding groove 3045 return to their original positions to seal one side of the exhaust frame 3041. This can automatically control the temperature inside the space formed by the first sealing membrane 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202. Furthermore, the temperature inside the space formed by the first sealing membrane 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202 does not require control by a fan, making it convenient for users.

[0025] In a preferred embodiment, the cross-sectional dimensions of the first guide positioning frame 3011 are clearance-fitted with the projected dimensions of the side of the guide positioning component 301; the cross-sectional dimensions of the first positioning notch 208 are clearance-fitted with the projected dimensions of the bottom of the pressure relief component 304; the bottom of the pressure relief component 304 has an arc, the diameter of which is the same as the inner diameter of the first sealing film 205; the outer diameter of the first support frame 203 is clearance-fitted with the inner diameter of the first sealing film 205; the cross-sectional dimensions of the sliding positioning port 2012 are clearance-fitted with the cross-sectional dimensions of the sealing sliding strip 3044; and the cross-sectional dimensions of the convex sliding groove 3045 are clearance-fitted with the cross-sectional dimensions of the first convex groove 2013.

[0026] In a preferred embodiment, the cross-sectional dimensions of the inner side of the first sliding positioning groove 3014 are clearance-fitted with the projected dimensions of the side of the sliding sealing plate 3021. The dimensions of the side of the sliding sealing plate 3021 are the same as the dimensions of the side of the pneumatic push plate 3026. A storage groove is provided on the top of the sliding sealing plate 3021. The storage groove of the sliding sealing plate 3021 is connected to the second sliding positioning groove 3022. The push membrane 3023 seals the bottom of the push membrane 3023. The storage groove of the sliding sealing plate 3021 can store the push membrane 3023.

[0027] In a preferred embodiment, the cross-sectional dimensions of the inner side of the second guide positioning frame 3031 are clearance-fitted with the dimensions of the side of the sliding push plate 3034, the top of the telescopic positioning post 3035 is provided with a storage groove, the diameter of the inner side of the telescopic positioning post 3035 is clearance-fitted with the diameter of the limiting circular plate 3036, and the diameter of the top and bottom openings of the telescopic positioning post 3035 is clearance-fitted with the diameter of the telescopic post 3037.

[0028] In a preferred embodiment, a convex groove is provided on the front and back sides of the other side inside the exhaust frame 3041. The cross-sectional dimensions of the convex groove of the exhaust frame 3041 are clearance-fitted with the cross-sectional dimensions of the convex sliding groove 3045. The length inside the exhaust frame 3041 is clearance-fitted with the width of the sealing sliding strip 3044. The bottom of the push plate 3046 is fixedly connected to the top of the telescopic column 3037. The cross-sectional dimensions of the push groove 3032 are the same as the cross-sectional dimensions of the top receiving groove of the sliding sealing plate 3021.

[0029] The working principle of this invention is as follows: During use, vegetables that prefer sunlight and require higher temperatures are planted in the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the heat insulation isolation plate 202. Vegetables that prefer shade and require lower temperatures, or fungi, are planted in the space formed by the second sealing film 206, the front sealing plate 201, the back sealing plate 207, and the heat insulation isolation plate 202. This allows the shading greenhouse to simultaneously plant vegetables with different growing habits, thus ensuring planting efficiency. During use, the sealing positioning strip 3013 is removed. As sunlight shines on the first sealing film 205, the temperature inside the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202 rises. This increases the pressure inside the space, pushing the sliding positioning component 302 to the other side of the first sliding positioning groove 3014. As the pressure continues to rise, the sliding positioning component 302 continues to move to the other side until one side of the sliding positioning component 302 reaches the top of the exhaust pipe 3012. At this point, the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202... The gas inside the formed space will enter the second sealing film 206, the front sealing plate 201, the back sealing plate 207, and the heat insulation plate 202 through the first sliding positioning groove 3014 and the exhaust pipe 3012. After the temperature inside the space of the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the heat insulation plate 202 reaches the temperature of the plants inside, if the temperature continues to rise, the high temperature gas will be discharged into the second sealing film 206, the front sealing plate 201, the back sealing plate 207, and the heat insulation plate 202 under the action of pressure. This allows the temperature inside the space of the second sealing film 206, the front sealing plate 201, the back sealing plate 207, and the heat insulation plate 202 to be controlled, making it convenient for users to adjust the temperature on both sides according to the vegetables being grown, and to adjust the temperature on both sides of the shaded greenhouse according to the actual planting needs. After the temperatures in the spaces formed by the first sealing film 205, front sealing plate 201, back sealing plate 207, and heat insulation plate 202, and the spaces formed by the second sealing film 206, front sealing plate 201, back sealing plate 207, and heat insulation plate 202, all reach a suitable temperature for the vegetables inside, the exhaust pipe 3012 is blocked by the sealing positioning strip 3013 to prevent the high-temperature gas inside the spaces of the first sealing film 205, front sealing plate 201, back sealing plate 207, and heat insulation plate 202 from continuously entering the spaces of the second sealing film 206, front sealing plate 201, back sealing plate 207, and heat insulation plate 202. Then, the first sealing film 205, front sealing plate 201, and back sealing plate 207... As the internal temperature of the space formed by the thermal insulation plate 202 continues to rise, the pneumatic push plate 3026 and the telescopic block 3025 move towards the inside of the second sliding positioning groove 3022, squeezing the liquid inside the second sliding positioning groove 3022 into the push membrane 3023, causing the push membrane 3023 to unfold and elongate, then enter the second guide positioning frame 3031 through the push groove 3032, and then move to one side through the sliding push plate 3034, squeezing the liquid inside the second guide positioning frame 3031, causing the limiting circular plate 3036 and the telescopic column 3037 to rise, pushing the push plate 3046 to rise, and then causing the sealing sliding strip 3044 and the convex sliding groove 3045 to slide through the sliding groove 3045. The positioning port 2012 and the first convex groove 2013 are guided to move, which then causes the other side of the exhaust frame 3041 sealed by the sealing sliding strip 3044 to open a gap. This allows the internal air pressure in the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202 to leak out, thereby controlling the internal temperature of the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202. After the internal temperature decreases, the temperature of the space formed by the first sealing film 205, the front sealing plate 201, the back sealing plate 207, and the thermal insulation plate 202 also decreases. Then, the first spring 3027 pushes the first limiting plate 3024 and the telescopic block 3... 025 and the air pressure push plate 3026 rebound, then draw the liquid inside the push membrane 3023 back into the second sliding positioning groove 3022, then make the push membrane 3023 return to its original position, and then under the pull of the second spring 3043, make the sealing sliding strip 3044 and the convex sliding groove 3045 return to their original positions to seal one side of the exhaust frame 3041. It can realize automatic control of the temperature inside the space formed by the first sealing membrane 205, the front sealing plate 201, the back sealing plate 207 and the heat insulation isolation plate 202, and the temperature inside the space formed by the first sealing membrane 205, the front sealing plate 201, the back sealing plate 207 and the heat insulation isolation plate 202 does not require the control of fans, etc., which is convenient for users to use. The present invention allows for the installation of a handle on the side of the pneumatic push plate 3026 away from the telescopic block 3025. After each workday or before use in the morning, the user can adjust the position of the sliding positioning component 302 inside the guide positioning component 301. This allows for adjustment of the pressure of the pneumatic component 3 to release pressure according to actual needs, and facilitates the user to adjust the equipment according to the actual temperature required by the vegetables.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A negative pressure ventilation type yin-yang shed, comprising an installation ground (1), characterized in that: A yin-yang canopy component (2) is installed on the top of the installation ground (1). A pneumatic component (3) is fixedly connected to the top of the yin-yang canopy component (2). The pneumatic component (3) includes a guide positioning component (301). A sliding positioning component (302) is provided on the inner side of the guide positioning component (301). A pressure pushing component (303) is fixedly connected to the top of the guide positioning component (301). A pressure relief component (304) is fixedly connected to the top of the pressure pushing component (303). The guide positioning component (301) includes a first guide positioning frame (3011). An exhaust pipe (3012) is fixedly connected to the bottom of the first guide positioning frame (3011). A sealing positioning strip (3013) is installed on the bottom of the outer side of the exhaust pipe (3012). A first sliding positioning groove (3014) is opened on one side of the first guide positioning frame (3011). An exhaust groove (3015) is opened on one side of the top of the first guide positioning frame (3011).

2. The negative pressure ventilation type yin-yang shed according to claim 1, characterized in that: The yin-yang canopy component (2) includes a front sealing plate (201), with an insulation partition plate (202) fixedly connected to the back of the front sealing plate (201). A first support frame (203) is fixedly connected to one side of the insulation partition plate (202), and a second support frame (204) is fixedly connected to the other side of the front sealing plate (201). A first sealing film (205) is fixedly connected to the outer side of the first support frame (203), and a second sealing film (206) is fixedly connected to the outer side of the second support frame (204). The back of the insulation partition plate (202)... A back sealing plate (207) is fixedly connected. A first positioning notch (208) is provided on the top of the first sealing film (205). An entry buffer chamber (209) is installed on the front of the front sealing plate (201). A door panel (2010) is fixedly connected to both the front and back of the entry buffer chamber (209). A second positioning notch (2011) is provided on the side of the thermal insulation isolation plate (202). A sliding positioning port (2012) is provided on the side of the thermal insulation isolation plate (202). A first convex groove (2013) is provided on both the front and back of the sliding positioning port (2012).

3. The negative pressure ventilation type yin-yang shed according to claim 2, characterized in that: The sliding positioning assembly (302) includes a sliding sealing plate (3021), a second sliding positioning groove (3022) is provided on one side of the sliding sealing plate (3021), a pushing membrane (3023) is installed on the top of the sliding sealing plate (3021), a first limiting plate (3024) is provided on the inner side of the second sliding positioning groove (3022), a telescopic block (3025) is fixedly connected to one side of the first limiting plate (3024), a pneumatic pushing plate (3026) is fixedly connected to one side of the telescopic block (3025), and a first spring (3027) is fixedly connected to the other side of the first limiting plate (3024).

4. A negative pressure ventilation type yin-yang shed according to claim 3, characterized in that: The pressure pushing assembly (303) includes a second guide positioning frame (3031), a pushing groove (3032) is provided on the other side of the bottom of the second guide positioning frame (3031), a telescopic positioning column (3035) is fixedly connected to one side of the top of the second guide positioning frame (3031), a limiting circular plate (3036) is provided on the inner side of the telescopic positioning column (3035), a telescopic column (3037) is fixedly connected to the top of the limiting circular plate (3036), a sliding push plate (3034) is provided on the inner side of the second guide positioning frame (3031), and a limiting strip (3033) is fixedly connected to one side of the pushing groove (3032) inside the second guide positioning frame (3031).

5. A negative pressure ventilation type yin-yang shed according to claim 4, characterized in that: The pressure relief assembly (304) includes an exhaust frame (3041), a pull positioning groove (3042) is fixedly connected to the other side of the top of the exhaust frame (3041), a second spring (3043) is fixedly connected to the top of the inner side of the pull positioning groove (3042), a sealing sliding strip (3044) is fixedly connected to the bottom of the second spring (3043), a convex sliding groove (3045) is fixedly connected to both the front and back of the sealing sliding strip (3044), and a push plate (3046) is fixedly connected to the end of the sealing sliding strip (3044) away from the second spring (3043).

6. A negative pressure ventilation type yin-yang shed according to claim 5, characterized in that: The cross-sectional dimensions of the first guide positioning frame (3011) are clearance-fitted with the projected dimensions of the side of the guide positioning component (301), the cross-sectional dimensions of the first positioning notch (208) are clearance-fitted with the projected dimensions of the bottom of the pressure relief component (304), the bottom of the pressure relief component (304) is provided with an arc, the diameter of the arc of the pressure relief component (304) is the same as the diameter of the inner side of the first sealing film (205), the outer diameter of the first support frame (203) is clearance-fitted with the inner diameter of the first sealing film (205), the cross-sectional dimensions of the sliding positioning port (2012) are clearance-fitted with the cross-sectional dimensions of the sealing sliding strip (3044), and the cross-sectional dimensions of the convex sliding groove (3045) are clearance-fitted with the cross-sectional dimensions of the first convex groove (2013).

7. A negative pressure ventilation type yin-yang shed according to claim 5, characterized in that: The cross-sectional dimensions of the inner side of the first sliding positioning groove (3014) are fitted with the projected dimensions of the side of the sliding sealing plate (3021) with a clearance. The dimensions of the side of the sliding sealing plate (3021) are the same as the dimensions of the side of the pneumatic push plate (3026). A storage groove is provided on the top of the sliding sealing plate (3021). The storage groove of the sliding sealing plate (3021) is connected to the second sliding positioning groove (3022). The push membrane (3023) seals the bottom of the push membrane (3023). The storage groove of the sliding sealing plate (3021) can store the push membrane (3023).

8. A negative pressure ventilation type yin-yang shed according to claim 5, characterized in that: The cross-sectional dimensions of the inner side of the second guide positioning frame (3031) are clearance-fitted with the dimensions of the side of the sliding push plate (3034). The top of the telescopic positioning column (3035) is provided with a storage groove. The diameter of the inner side of the telescopic positioning column (3035) is clearance-fitted with the diameter of the limiting circular plate (3036). The diameters of the top and bottom openings of the telescopic positioning column (3035) are clearance-fitted with the diameter of the telescopic column (3037).

9. A negative pressure ventilation type yin-yang shed according to claim 5, characterized in that: The exhaust frame (3041) has a convex groove on the front and back sides of the other side. The cross-sectional dimensions of the convex groove of the exhaust frame (3041) are clearance-fitted with the cross-sectional dimensions of the convex sliding groove (3045). The length inside the exhaust frame (3041) is clearance-fitted with the width of the sealing sliding strip (3044). The bottom of the push plate (3046) is fixedly connected to the top of the telescopic column (3037). The cross-sectional dimensions of the push groove (3032) are the same as the cross-sectional dimensions of the top receiving groove of the sliding sealing plate (3021).

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