Air exhaust connector, polycarbonate vacuum plate, vacuum degree indicator and sunlight room

Abstract

The utility model provides an air exhaust interface, a polycarbonate vacuum plate, a vacuum degree indicator and a sunlight room. The air exhaust interface is an air exhaust pipeline (1) or an opening section (209); one end of the air exhaust connector is connected with an air-exhausted object (100), and the sealing structure comprises a first section (101) and a sealing section (102) which are located on the air exhaust connector. The inner walls of the pipelines of the air exhaust interface at the position of the first section (101) are attached to each other or have a gap; and the pipeline of the air exhaust interface is sealed at the position of the sealing section (102). According to the sealing structure, the air exhaust pipeline made of the hard material can be conveniently sealed, and the situation that air enters a vacuum space in the hard material in the sealing process is avoided.

Description

Technical Field

[0001] The utility model relates to the field of new building materials, in particular to a heat-insulating and light-transmitting material plate, specifically to an air extraction interface with a sealing structure, a polycarbonate vacuum plate and a sun room.

[0002] Polycarbonate vacuum board is also called sunshine board, PC sunshine board and PC vacuum board.

[0003] A sunroom is also known as a greenhouse, solarium, sun space, or plant growing room. Vegetables, fruits, and other plants can be grown in a sunroom. Associations and other organizations have defined specific definitions for some terms, such as the American Building Industry Manufacturers Association (AAMA). However, in this utility model, the term "sunroom" should be considered a general term and includes all of the above terms. In preferred embodiments, the sunroom in this utility model specifically refers to a plant growing room. Background Art

[0004] After harvesting, vegetables can lose up to 10% to 20% of their water within 24 hours, and up to 30% to 50% within 72 hours. They also lose up to 20% to 30% of their vitamin C within 24 hours, and up to 50% to 70% within 72 hours. They can also lose up to 5% to 10% of their protein, 2% to 5% of their fat, and 1% to 3% of their minerals within 24 hours. Any vegetable that isn't eaten immediately after harvest will lose its nutrients, so it's best to have a garden at home where you can pick vegetables at any time. Existing soilless cultivation systems for home use can't regulate the growing environment, and the yield is quite limited, failing to meet daily needs. Cultivating vegetables in your own backyard requires skill, disrupts a neat garden, requires considerable labor, and is not very clean. It also requires extensive watering, and there are risks of predation from wild animals and birds. Managing pests and diseases is also a major challenge, so it's rare for ordinary families to grow vegetables in their own backyards.

[0005] Patent document US20210007304A1 discloses a growth system and method having a movable crop support that is configured to advance downward along a track to guide agricultural crops along a spiral path through a growth space, which allows a large number of crops to be planted within a certain space, thereby achieving three-dimensional planting.

[0006] Patent document US20230389496A1 discloses a mobile aerosol growth system for growing plants indoors, such as in balconies and kitchens, achieving miniaturization and mobility of the planting system.

[0007] The aforementioned patent documents address the control and maintenance of temperature and humidity in the smaller surrounding spaces of domestic plant cultivation. However, they fail to address temperature control and insulation in the larger spaces where the plants reside. This is particularly unsuitable for vegetable cultivation in sunrooms in areas with lower nighttime temperatures. When outdoor temperatures are low at night, plants are susceptible to frostbite or growth cessation; when temperatures are high, plants may experience abnormal growth, such as excessive growth or disease.

[0008] Patent document US20240130300A1 discloses a greenhouse environment optimization method, pointing out that greenhouse crop production is a highly coordinated combination of complex biological, environmental, mechanical and management systems that are organized to produce crops to meet market demand. The control system guides the physical environment control system (e.g., heaters, coolers, irrigators) to respond to fluctuations in the natural external environment to meet immediate plant growth needs. However, patent document US20240130300A1 does not consider the energy consumption issues of heating and lighting control.

[0009] Patent document US20210285282A1 discloses a variable insulation assembly, noting that in sunny weather conditions, it is often desirable to maximize sunlight transmission into a building to assist with lighting and heating the building's interior. Conversely, in dark, cloudy, or cold weather conditions, it is often desirable to maximize the building's insulation to minimize heat loss from the building. Windows are commonly used in buildings to facilitate the transmission of sunlight into the building while also providing a sealed barrier against wind, rain, snow, and other undesirable elements. While windows typically provide a relatively high degree of light transmission, which may be advantageous in sunny weather conditions, they also typically provide a relatively low degree of thermal insulation, which may be undesirable in dark, cloudy, or cold weather conditions. To this end, patent document US20210285282A1 provides a variable insulation assembly comprising an array of air-enclosed cavities or pockets, referred to herein as thermal cells, which are adjustable between expanded and compressed states. In the expanded state, the variable insulation assembly provides a thermal barrier, while in the compressed state, the variable insulation assembly retracts, providing less insulation than in the expanded state.

[0010] However, patent document US20210285282A1 needs to be combined with a controller, and the structure is complex.

[0011] As an alternative, patents CN113711814A and CN217657336U use polycarbonate (PC) in greenhouses. PC vacuum panels, also known as PC sun panels or sun panels, offer high light transmittance and excellent thermal insulation.

[0012] The thermal insulation performance of the PC vacuum board is affected by the vacuum degree of the hollow interlayer. However, patent documents CN113711814A and CN217657336U do not solve the problem of how to obtain a better vacuum degree, that is, how to reduce the air density.

[0013] Patent document US20120225239A1 discloses a thermally broken polycarbonate vacuum panel window glass, which uses a thermally broken component to reduce the flow of gas in the hollow space.

[0014] However, under the premise of poor vacuuming, the role of patent document US20120225239A1 is only auxiliary.

[0015] Patent document US20150223410A1 discloses a vacuum chamber greenhouse wall panel system, in which the panels are vacuum-sealed and interconnected and connected to a vacuum pump. The vacuum pump is electronically controlled based on the temperature of the external environment to compensate for leakage.

[0016] It can be seen that if the sealing problem of the polycarbonate vacuum panel is not solved, a vacuum pump will always be needed to compensate for leakage.

[0017] Regarding sealing, patent document CN207748082U discloses a bag clamping component and a vacuum sealer having the same. When vacuum sealing a bag, the bag opening is placed within the second ring block. The upper cover is closed, positioning the bag opening within the sealing chamber. The sealing strip presses the area near the bag opening to be sealed against the heating component. The vacuuming component operates, evacuating the air from the vacuum chamber along with the air in the bag. The heating component then generates heat, sealing the area of the bag to be sealed.

[0018] However, the sealing solution of patent document CN207748082U is not suitable for sealing polycarbonate vacuum panels (i.e., PC vacuum panels). First, in the solution of patent document CN207748082U, the bag mouth of the packaging bag is placed in a vacuum chamber, and then heat-sealed in a sealed vacuum environment. For polycarbonate vacuum panels, it is complicated and costly to provide a sealed vacuum environment in the vacuum chamber. Second, this is because polycarbonate vacuum panels (i.e., PC vacuum panels) are different from packaging bags. Packaging bags are flexible materials and can be squeezed and flattened by the atmosphere during the vacuuming process, while polycarbonate vacuum panels are hard materials at room temperature. Third, there are textures between the inner walls of the packaging bags, so that when they are pressed together between the inner walls of the bag mouth, there is a gap because the textures cannot be completely aligned, so vacuuming is performed through the gap, but it is difficult to process textures inside the polycarbonate vacuum panel.

[0019] Patent document CN112874873A discloses a vacuum sealing machine for processing food packaging bags, which performs vacuuming through an exhaust pipe and quickly presses and heat-seals the bag opening at the moment the exhaust pipe is drawn out of the packaging bag.

[0020] However, patent document CN112874873A cannot solve the problem of air leakage caused by the moment the air extraction pipe is extracted. Utility Model Content

[0021] In view of the defects in the prior art, the purpose of the present invention is to provide an exhaust interface with a sealing structure, a polycarbonate vacuum panel and a sun room.

[0022] According to the utility model, a vacuum interface with a sealing structure is provided, and the vacuum interface is a vacuum pipe or an opening section;

[0023] One end of the air extraction interface is connected to the object to be extracted, and the sealing structure includes a first section located at the air extraction interface and a sealing section;

[0024] The inner walls of the pipes of the air extraction interface at the location of the first section are in contact with each other or have a gap;

[0025] The pipeline of the air extraction interface is sealed at the location of the sealing section;

[0026] Along the extension direction of the air extraction interface, at least one of the first sections is located on a side of the sealing section close to the object to be extracted;

[0027] At least one of the first sections is located on a side of the sealing section away from the object to be evacuated; or, no first section is located on a side of the sealing section away from the object to be evacuated.

[0028] The use of an exhaust pipe with a sealing structure can effectively achieve vacuuming and sealing of hollow panels made of hard materials such as polycarbonate vacuum panels to form vacuum panels, thereby preventing air from leaking into the interior of the hard material vacuum panels during vacuuming.

[0029] Preferably, the material of the air extraction interface is polycarbonate;

[0030] The first section of the polycarbonate is a portion of the exhaust interface that is allowed to be extruded after being softened by heating;

[0031] The sealing section of the polycarbonate is a portion of the exhaust interface that is allowed to be formed after hot melting;

[0032] The length of the first section along the extending direction of the air extraction interface is greater than or equal to 1 mm, and the length of the sealing section along the extending direction of the air extraction interface is greater than or equal to 1 mm.

[0033] Polycarbonate is a heat-softenable and hot-melt material that can be used in the preparation of the sealing structure. At the same time, the appropriate design of the first section and the sealing section length can ensure reliable sealing of the object to be evacuated, and provide sufficient structural strength for closed management during vacuuming.

[0034] Preferably, the sealing structure further comprises a second section located at the air extraction interface;

[0035] Along the extension direction of the exhaust interface, the second section is located between the first section and the sealing section facing each other, forming a thermal resistance between the two during the heating process;

[0036] Along the extension direction of the air extraction interface, the length of the second section is greater than or equal to 1 mm;

[0037] The inner walls of the pipe of the air extraction interface at the location of the second section are in contact with each other, or have a gap, or have a cavity;

[0038] The second section of the polycarbonate is a portion of the exhaust interface that is allowed to be extruded after being softened by heating.

[0039] The second section provides an avoidance space between the tools for processing the first section and the tools for processing the sealing section.

[0040] According to the utility model, a polycarbonate vacuum panel is provided, comprising: a multi-layer polycarbonate panel body and the aforementioned air extraction interface with a sealing structure;

[0041] The hollow interior of the multi-layer polycarbonate sheet body includes a vacuum space;

[0042] The sealing portion of at least one open end of the multilayer polycarbonate board body and the exhaust pipe serving as the exhaust interface with a sealing structure are an integrally formed structure; or, a portion of the multilayer polycarbonate board body forms an opening section serving as the exhaust interface with a sealing structure.

[0043] Preferably, the multi-layer polycarbonate plate body comprises a plurality of polycarbonate plates, and a plurality of spacers are connected between two facing polycarbonate plates;

[0044] There is a gap between the end of the spacer and the sealing portion of the open end, and the gap constitutes a channel connecting the subspaces separated by the spacer into the vacuum space;

[0045] The passage is located on the side where the sealing portion of the multi-layer polycarbonate plate body is located where the air extraction pipe is located.

[0046] The multi-layer polycarbonate vacuum panel can more effectively prevent heat conduction on both sides, and the internal spacers can effectively play a supporting role to prevent the multi-layer polycarbonate vacuum panel from being crushed by the external atmospheric pressure in the vacuum state.

[0047] Preferably, the vacuum space is provided with a gas absorbent and / or a vacuum indicator.

[0048] The gas absorbent can absorb the residual gas inside the polycarbonate vacuum panel, and the vacuum indicator can display the vacuum degree inside the polycarbonate vacuum panel, so as to timely discover the polycarbonate vacuum panel with air leakage.

[0049] According to the utility model, a vacuum indicator suitable for indicating the vacuum degree of the polycarbonate vacuum panel is provided, comprising: a hollow tube, an air bag and a shielding part;

[0050] The airbag sealing sleeve is arranged at one end of the hollow tube, the shielding portion is connected to the end of the hollow tube where the airbag is located and extends axially outward, and the other end of the hollow tube is sealed;

[0051] When the external air pressure is lower than the air pressure inside the hollow tube, the airbag is shielded by the shielding portion; when the external air pressure is greater than or equal to the air pressure inside the hollow tube, the airbag enters the hollow tube under the action of the external air pressure and emerges from the shielding portion.

[0052] The vacuum indicator can indicate whether the environment is vacuum.

[0053] Preferably, it also includes the air extraction interface with a sealing structure;

[0054] The material of the hollow tube is polycarbonate;

[0055] The other end of the hollow tube and the air extraction interface are integrally formed.

[0056] The vacuum indicator adopts the above-mentioned sealing structure, which does not require additional air extraction pipelines and can effectively prevent air leakage during sealing.

[0057] According to the utility model, a sun room is provided, comprising:

[0058] The panels 8 can be spliced and disassembled to form a closed or semi-closed plant growth space;

[0059] An environmental regulation system for controlling environmental parameters of the plant growth space;

[0060] The plate 8 includes the polycarbonate vacuum plate; or, the plate 8 has the air extraction interface with a sealing structure.

[0061] The plant growth chamber built with polycarbonate vacuum panels has better thermal insulation effect. At the same time, it cooperates with the environmental regulation system to control the environmental parameters of the plant growth space, effectively helping plant growth.

[0062] Preferably, the environmental conditioning system includes the following devices located on the air circulation path of the sun room:

[0063] a first ventilation device configured to regulate the air power source and provide an air pressure difference between the inside and outside of the plant growth space by sucking or exhausting air in the space;

[0064] a first water circulation device configured to regulate the temperature and humidity in the plant growth space and to exchange air with the outside;

[0065] Also includes any one or more of the following devices:

[0066] a first light adjustment device configured to adjust the area of natural sunlight projected from the top of the plant growth space;

[0067] a second light adjustment device configured to provide a light source that directly illuminates the interior of the plant growth space;

[0068] a second ventilation device configured to adjust the contact area of the plant growth space for free circulation of air between the interior and exterior of the space;

[0069] a second water circulation device configured to spray clean water into the plant growth space at a fixed time or according to temperature;

[0070] a third water circulation device configured to exchange heat between the air in the plant growth space and the external underground soil;

[0071] The first irrigation device is configured in a trough shape and is located on the south side and / or the east side of the plant growth space, and cultivates plants using a hydroponic method or a tidal irrigation method;

[0072] The second irrigation device is configured in a columnar shape and is located in the middle of the plant growth space. It has multiple layers of petal-shaped grooves stacked along the axial direction for accommodating plants, or holes extending radially for plants to extend their leaves. The plant roots remain inside the column axis, and tidal irrigation is used to cultivate plants;

[0073] The third irrigation device is configured in a trough shape and is located on the north side of the plant growth space, and uses a drip irrigation cultivation method to cultivate plants;

[0074] The fourth irrigation device is configured as a perforated support, wherein the plants pass through the holes and the roots are located on the side of the perforated support that is not exposed to light, and the plants are cultivated using an aeroponic method;

[0075] Multiple nutrient solution tanks, installed under or on the floor of the sun room;

[0076] At least three fertilizer liquid tanks are installed on the backlit wall of the sunroom, with multiple water pipes at the bottom connected to different nutrient solution tanks; or one fertilizer liquid tank is installed on the backlit wall of the sunroom, with a water pipe at the bottom connected to the nutrient solution tank; wherein the fertilizer liquid tank is located above the floor and is not obstructed;

[0077] Delivery pipelines, connected to the nutrient solution tanks, respectively, to deliver the nutrient solution to the roots of the plants;

[0078] The environmental regulation system includes a temperature control system, a light control system, and a gas control system, which regulates the plant growth environment from multiple dimensions.

[0079] The environmental regulation system includes an irrigation control system to meet the different irrigation needs of different plants.

[0080] The environmental regulation system includes a nutrient solution control system, which prepares targeted nutrient solutions for different plants.

[0081] Compared with the prior art, the present invention has the following beneficial effects:

[0082] 1. The sealing structure of the utility model is convenient for sealing the exhaust pipe of the hard material after the exhaust is completed, thereby preventing air from entering the vacuum space inside the hard material during the sealing process.

[0083] 2. The PC vacuum board using the sealing structure and preparation method of the present invention not only has feasible structural strength, but also can meet our performance requirements for building a sun room.

[0084] 3. It avoids the problem of incomplete sealing between the outer wall of the vacuum pipe and the inner wall of the polycarbonate vacuum plate vacuum pipe due to aging and other reasons during vacuuming, as well as the problem of air leakage at the moment the vacuum pipe is pulled out.

[0085] 4. The utility model enables users to eat fresh vegetables conveniently at home. It is an energy-saving and environmentally friendly, automatic planting, three-dimensional planting, land-saving, suitable for all seasons, healthy and pollution-free, rich in yield, low in planting cost, simple and beautiful products. The soilless cultivation system of the home sun room can allow users to eat fresh vegetables to help maintain health, drive less to the supermarket to reduce exhaust emissions, and increase the convenience of distributed life and work. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0087] Figure 1 A schematic diagram of a first embodiment of an air extraction pipeline with a sealing structure;

[0088] Figure 2 A schematic diagram of a second embodiment of an air extraction pipeline with a sealing structure;

[0089] Figure 3 Schematic diagram of a third embodiment of an air extraction pipeline with a sealing structure;

[0090] Figure 4 Schematic diagram of the structure of the sealed polycarbonate vacuum panel;

[0091] Figure 5 Schematic diagram of the structure of the polycarbonate vacuum panel before sealing;

[0092] Figure 6 It is a structural diagram of the vacuum indicator when the external air pressure is lower than the internal air pressure of the vacuum indicator;

[0093] Figure 7 It is a structural diagram of the vacuum indicator when the external air pressure is greater than the internal air pressure of the vacuum indicator;

[0094] Figure 8 The schematic diagram of the preparation of the exhaust pipeline;

[0095] Figure 9 Schematic diagram of another sealing method for sealing a polycarbonate hollow panel into a polycarbonate vacuum panel;

[0096] Figure 10 Schematic diagram of the working principle of the seal;

[0097] Figure 11 Schematic diagram of the structure of the plant growth chamber;

[0098] Figure 12 It is a structural diagram of the irrigation control system and the nutrient solution control system;

[0099] Figure 13 Schematic diagram of the airflow path in the plant growth chamber;

[0100] Figure 14 This is a schematic diagram of the location of the water curtain and fan;

[0101] Figure 15 Schematic diagram of the structure of the sunshade;

[0102] Figure 16 Schematic diagram of the structure of the water curtain.

[0103] In the picture:

[0104] 1: exhaust pipe; 100: object to be exhausted;

[0105] 101: first section; 102: sealing section;

[0106] 103: Second section; 2: Multi-layer polycarbonate sheet body;

[0107] 201: Open end; 202: Sealing part;

[0108] 203: spacer; 204: polycarbonate board;

[0109] 205: interval; 206: subspace;

[0110] 209: Opening section

[0111] 3: Hollow tube; 4: Airbag;

[0112] 5: shielding part; 6: slotted fixture;

[0113] 7: cylinder; 801: plate;

[0114] 802: Aluminum profile frame; 803: Sunshade;

[0115] 804: Water curtain; 805: Fan;

[0116] 8041: Top water pipe hole 8042: Multiple layers of kraft paper

[0117] 8043: Water collection pipe 8044: High water level sensor

[0118] 8045: Low water level sensor 8046: UVC disinfection lamp

[0119] 8047: Water pump 8048: Solenoid valve

[0120] 806: Nutrient solution tank; 807: Delivery pipeline;

[0121] 808: first irrigation device; 809: motor transmission device;

[0122] 810: curtain; 811: tie arm;

[0123] 9: exhaust pipe; 901: pipeline position. DETAILED DESCRIPTION

[0124] People are increasingly focusing on healthy eating and want to consume fresh fruits and vegetables. Growing vegetables in one's own yard can help meet this need. To ensure a daily vegetable harvest that meets a family's needs, a sufficient amount of space is required for vegetable cultivation. These areas are typically located outside the main building, such as in a sunroom.

[0125] The applicant found through observation of the temperature that the temperature in some areas is too low at night. Since most sunrooms are in open-air environments, even the interior of the sunroom cannot provide a temperature conducive to the growth of plants at night or in certain weather conditions, and may even cause frostbite to the plants.

[0126] The reason is that the wall panels and roof panels of the sunroom occupy the main area in the process of internal and external heat exchange, so they play a major role in the thermal insulation performance of the sunroom. The thermal insulation effect of single-layer PC boards is not ideal. For this reason, the applicant improved from single-layer PC boards to PC hollow boards (i.e. polycarbonate hollow boards). Although the thermal insulation performance has increased, it is still not ideal. Further research and development found that the reason is that air is a good conductor of heat, and the thermal insulation effect of PC hollow boards is limited. Further research found that if the PC hollow boards are evacuated to form PC vacuum boards with good vacuum, the thermal insulation performance of the PC vacuum boards can be greatly increased. This requires solving the sealing problem of PC vacuum boards. Polycarbonate vacuum boards have poor sealing, which causes air leakage, and how to seal the polycarbonate vacuum boards during the vacuuming process is a difficult problem.

[0127] To this end, the applicant tried all available methods on the market, including physical adsorption, mechanical fastening, and glue, but none of them could effectively seal the polycarbonate vacuum panel. Various adhesive tapes were also tried, but to no avail.

[0128] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art further understand the present invention, but are not intended to limit the present invention in any way. It should be noted that a person skilled in the art may make various variations and improvements without departing from the scope of the present invention. Such variations and improvements are all within the scope of protection of the present invention.

[0129] Example 1

[0130] Figure 1 This is Example 1. This embodiment provides a vacuum interface with a sealed structure. One end of the vacuum pipe 1 is connected to the object 100 to be vacuumed, and the other end is connected to the vacuum equipment. The vacuum object 100 is vacuumed to reduce pressure or evacuate it. The sealing structure is used to seal the vacuum pipe 1 after the vacuum is completed. The vacuum object 100 is, for example, a polycarbonate vacuum panel to be vacuumed, and the vacuum equipment is a vacuum pump.

[0131] like Figure 1 As shown, the sealing structure includes a first section 101 and a sealing section 102 located within the exhaust duct 1. The exhaust duct 1 in this embodiment is made of polycarbonate (PC), which can be used in applications requiring good light transmittance and thermal insulation, such as sunrooms. In a preferred embodiment, both the exhaust duct 1 and the object being exhausted 100 are made of polycarbonate and form a single, integral structure.

[0132] Among them, the inner walls of the exhaust pipe 1 at the position of the first section 101 are fitted together or have a gap, and the pipe of the exhaust pipe 1 is closed at the position of the sealing section 102. This embodiment does not limit the number of the first section 101 and the sealing section 102. For example, there can be multiple sealing sections 102. Since the inner walls of the pipe of the first section 101 are fitted together and the pipe of the sealing section 102 is closed, the pipes need to be heated and extruded. Therefore, the outer walls of the first section 101 and the sealing section 102 have traces of being squeezed inward. The traces of being squeezed inward include two opposite inwardly concave areas on the outer wall of the pipe formed by squeezing both sides of the pipe by the extrusion equipment. You can refer to Figure 10 shown.

[0133] Specifically, the polycarbonate first section 101 is the portion of the exhaust duct 1 that is allowed to be extruded after being softened by heating. During the manufacturing process, the first section 101 is the portion of the exhaust duct 1 that is extruded after being softened by heating. The exhaust duct 1 at the location of the first section 101 is softened by heating to 135°C. The first section 101 is then squeezed and held in place by a clamp, allowing the inner walls of the exhaust duct 1 to adhere to each other, forming a temporary seal against the object 100 being evacuated.

[0134] The polycarbonate sealing section 102 is the portion of the exhaust duct 1 that is allowed to be formed after being hot-melted. During the processing, the sealing section 102 is the portion of the exhaust duct 1 that is formed after being hot-melted. In a temporary sealed state, in a non-limiting example, the exhaust pipe can be removed. The sealing section 102 is at normal pressure and is heated to 160°C to melt the exhaust duct 1 at the location of the sealing section 102. The sealing section 102 is then clamped to seal the exhaust duct 1 at the location of the sealing section 102. After the sealing section 102 cools, the extrusion of the first section 101 can be stopped. At this time, the inner walls of the exhaust duct 1 of the first section 101 may remain in contact with each other, or a gap may be formed due to the outward rebound of the originally extruded portion of the exhaust duct 1.

[0135] exist Figure 1 In the illustrated embodiment, along the extension direction of the exhaust pipe 1 , at least one first section 101 is located on the side of the sealing section 102 close to the exhaust object 100 , and no first section 101 is located on the side of the sealing section 102 away from the exhaust object 100 .

[0136] To ensure a temporary sealing effect inside the vacuumed object 100, the length of the first section 101 along the extension direction of the exhaust pipe 1 is greater than or equal to 1 mm. To ensure a final sealing effect, the length of the sealing section 102 along the extension direction of the exhaust pipe 1 is greater than or equal to 1 mm.

[0137] like Figure 1As shown, the sealing section 102 is close to the first section 101, which can minimize or avoid the air between the sealing section 102 and the first section 101, and prevent the air from entering the object 100 to be vacuumed through the gap between the inner walls of the first section 101 after the first section 101 located on the side of the sealing section 102 close to the object 100 to be vacuumed stops squeezing.

[0138] exist Figure 2 In the variation shown, Figure 1 On the basis of the illustrated embodiment, at least one first section 101 is further included, which is located on the side of the sealing section 102 away from the object 100 to be evacuated.

[0139] like Figure 2 As shown, the first section 101 located on the side of the sealing section 102 away from the object 100 to be evacuated also provides temporary sealing. In this way, both sides of the sealing section 102 are temporarily sealed, and the air pressure difference on both sides is very small, preventing the hot-melt inner wall from being greatly pushed by the air pressure difference.

[0140] like Figure 3 As shown, as a non-limiting variation, in Figure 1 In addition to the illustrated embodiment, the sealing structure further includes a second section 103 located within the exhaust pipe 1. Along the extension direction of the exhaust pipe 1, the second section 103 is positioned between the first section 101 and the sealing section 102, which face each other. This serves the following purpose: During molding, the first section 101 and the sealing section 102 are simultaneously clamped to the exhaust pipe 1 by a fixture. The design of the second section 103 prevents the fixtures for the first section 101 and the sealing section 102 from interfering with each other.

[0141] The length of the second section 103 along the extension direction of the exhaust pipe 1 is greater than or equal to 1 mm. The inner wall of the exhaust pipe 1 at the location of the second section 103 is in contact with each other, or has a gap, or has a cavity. The second section 103 of polycarbonate is the portion of the exhaust pipe 1 that is extruded after being softened by heating. In other words, the second section 103 is the portion of the exhaust pipe 1 that is extruded after being softened by heating.

[0142] Example 2

[0143] like Figure 4 and Figure 5As shown, this embodiment provides a polycarbonate hollow panel, comprising: a multi-layer polycarbonate panel body 2 and the aforementioned air extraction duct 1 having a sealing structure. The multi-layer polycarbonate panel body 2 comprises a plurality of polycarbonate panels 204, with four polycarbonate panels 204 forming the four sides of the multi-layer polycarbonate panel body 2. The remaining two open ends 201 each have a sealing portion 202, which seals the open ends 201. The sealing portion 202 of at least one open end 201 of the multi-layer polycarbonate panel body 2 is integrally formed with the air extraction duct 1.

[0144] The hollow interior of the multilayer polycarbonate sheet body 2 includes a vacuum space 200, within which a gas absorbent and / or a vacuum indicator are located. Multiple spacers 203 are connected between two polycarbonate sheets 204, the larger of the four sides, facing each other. These spacers 203 divide the vacuum space 200 into multiple subspaces 206. Spacers 205 exist between the ends of the spacers 203 and the sealed portion 202 of the open end 201. These spacers 205 form passages connecting the subspaces 206 separated by the spacers 203 from the vacuum space 200. The passages are located on the side of the multilayer polycarbonate sheet body 2 where the sealed portion 202 is located, allowing the exhaust pipe 1 to simultaneously exhaust each subspace 206 before sealing.

[0145] Example 3

[0146] like Figure 6 and Figure 7 As shown, in order to promptly detect leakage of the hollow polycarbonate plate of Example 2, such as damage to the plate surface, this embodiment provides a vacuum indicator.

[0147] The vacuum indicator includes: a hollow tube 3, an airbag 4 and a shielding portion 5. The sealing sleeve of the airbag 4 is provided at one end of the hollow tube 3, the shielding portion 5 is connected to the end of the hollow tube 3 where the airbag 4 is located and extends axially outward, and the other end of the hollow tube 3 is sealed. The hollow tube 3 can be made of polycarbonate material, i.e., PC material. The other end of the hollow tube 3 can be evacuated and sealed in a non-restrictive manner, for example, using the method of Example 1 or a variation of Example 1, and the other end is an integrally molded structure with the exhaust pipe 1. The air pressure in the hollow tube 3 is approximately 200 Pa. Among them, the shielding portion 5 is a non-sealed structure, which allows the airbag 4 to contact the external space of the vacuum indicator. If there is gas in the external space, the gas in the external space is allowed to exert pressure on the airbag 4.

[0148] like Figure 6 As shown, when the external air pressure is less than the internal air pressure of the hollow tube 3, the airbag 4 is blocked by the blocking portion 5; Figure 7As shown, when the external air pressure is greater than or equal to the internal air pressure of the hollow tube 3, the airbag 4 enters the hollow tube 3 under the action of the external air pressure and is exposed from the shielding portion 5, indicating that the polycarbonate vacuum panel has leaked. The airbag 4 can be set in a conspicuous color, such as red.

[0149] Example 4

[0150] This embodiment provides a method for preparing a polycarbonate vacuum panel, comprising:

[0151] Step A: An open end 201 of the multilayer polycarbonate sheet body 2 is heated to a melting temperature by a heating head for heat melting. The melted open end 201 is then squeezed with a fixture to allow molecular fusion and shaping. The sheet is then cooled to form a sealed portion 202. A gas absorbent and / or the vacuum indicator are placed within the multilayer polycarbonate sheet body 2.

[0152] like Figure 5 As shown, in step A, before hot-melt sealing one open end 201, the spacer 203 inside the multilayer polycarbonate sheet body 2 can be milled from the other open end 201 of the multilayer polycarbonate sheet body 2 to shorten the length of the spacer 203 inward by 2 cm (in the initial state, the end of the spacer 203 is flush with the open end 201), forming a channel connecting the various subspaces separated by the spacer 203 in the multilayer polycarbonate sheet body 2, as shown in FIG. Figure 5 As shown. Then, high-pressure gas is blown into the multilayer polycarbonate sheet body 2 from the other open end 201 to blow out the debris generated by the milling pin from the one open end 201 to clean the multilayer polycarbonate sheet body 2. A gas absorbent and / or a vacuum indicator is placed inside the multilayer polycarbonate sheet body 2. After the channel is formed, as shown Figure 8 As shown, the other open end 201 is heated to the melting temperature using a heating head, then extruded using a slotted fixture 6. A stainless steel cylinder 7 is placed in the slotted position, forming an exhaust duct 1 with a passage connecting the subspace with the exterior of the multilayer polycarbonate panel body 2. After cooling and finalizing, the stainless steel cylinder is removed. At this point, the exhaust duct 1 is not yet sealed.

[0153] Step B: Insert the vacuum tube of the vacuum equipment into the vacuum pipe 1 to vacuum the multilayer polycarbonate panel body 2. Depending on the vacuum equipment, the vacuum state is maintained, or the sealed state is maintained. Specifically, if the vacuum equipment cannot be sealed when the vacuum is stopped, the vacuum state is maintained; if the vacuum equipment can be sealed when the vacuum is stopped, the sealed state is maintained.

[0154] Step C: corresponds to Figure 1In the embodiment shown, the outlet of the vacuum pipe of the vacuum equipment is withdrawn from the position of the first section 101, for example, to the position of the sealing section 102, or to the position of the pipeline on the side of the sealing section 102 away from the object 100 to be evacuated ( Figure 1 (not shown) is kept inserted into the pipeline of the air extraction pipeline 1 for continuous air extraction to maintain the air extraction state or the sealed state; or, the pipe opening of the air extraction pipe is initially located at the position of the sealing section 102; or, the pipe opening of the air extraction pipe is initially located at the pipeline position on the side of the sealing section 102 away from the object to be extracted 100 ( Figure 1 The first section 101 of the exhaust pipe 1 is heated with a heating head until softened and then squeezed and clamped with a clamp so that the inner walls of the continuously squeezed portion of the exhaust pipe 1 adhere to each other to form the first section 101, thereby temporarily closing the exhaust pipe 1.

[0155] Pull the exhaust pipe 9 out of the exhaust pipe 1 so that the inner and outer walls of the sealing section 102 are exposed to the atmosphere and the air pressure is equal. Let the sealing section 102 be in normal air, and the clamp at the first section 101 always applies pressure, so there will be no air leakage. In this way, there will be no air pressure difference when melting the sealing section 102. Or when the vacuum machine stops vacuuming and cannot seal, the exhaust pipe 9 can be temporarily retained in the exhaust pipe 1, such as Figure 10 As shown, the pipe opening of the exhaust pipe 9 is located at the pipe position 901 on the side of the sealing section 102 away from the object 100 to be exhausted.

[0156] The other part of the exhaust pipe 1 (i.e., the part at the sealing section 102) is heated to the hot melt temperature by a heating head, and then hot-melted and extruded to fuse the molecules and set the shape. The sealing section 102 is then formed after cooling, thereby permanently sealing the exhaust pipe 1. The clamping force on the first section 101 is removed, and the inner walls of the first section 101 remain in contact with each other or a gap is formed between the inner walls of the first section 101.

[0157] Finally, a vacuum is formed inside the sealed polycarbonate vacuum panel, and the remaining gas is further absorbed by the internal gas absorbent, reducing the air density inside the panel. PC vacuum panels have excellent thermal and sound insulation effects.

[0158] In this embodiment, assuming that a temporary seal is not formed using the first section 101, but instead continuous vacuuming and direct hot melt extrusion are attempted to form the sealed section 102, the portion of the vacuum duct 1 at the location of the sealed section 102 will be very soft when it reaches the hot melt temperature and will be sucked away by the vacuum duct and the polycarbonate vacuum panel. Thus, the temporary seal of the first section 101 solves the technical problem of preventing the hot melt location from being sucked away.

[0159] If, however, a temporary seal is not formed by the first section 101, and instead the vacuum is stopped to maintain the sealed state (the vacuum tube 9 is not removed from the vacuum pipe 1), and the sealing section 102 is directly formed by hot-melt extrusion, then the air pressure on the inner wall of the sealing section 102 is much lower than the atmospheric pressure on the outer wall. When the sealing section 102 is hot-melted, it will be pressed into the vacuum tube 9 by the atmospheric pressure, that is, it will still be sucked away by the vacuum tube 9. However, if a sealed state is not formed when the vacuum pump stops pumping, the atmosphere will pass through the vacuum pump and connect to the vacuum tube 9. When the sealing section 102 is hot-melted, it will not be pressed into the vacuum tube 9 by the atmospheric pressure.

[0160] In one variation, corresponding to Figure 1 The embodiment shown is modified in that the first section 101 and the sealing section 102 of the exhaust pipe 1 are softened and squeezed first, the first section 101 is temporarily sealed, and then the sealing section 102 is hot-melted.

[0161] In another variation, corresponding to Figure 2 The embodiment shown in the figure is modified in that the nozzle of the exhaust pipe is withdrawn from the position of the first section 101 and still remains inserted into the exhaust pipe 1 ( Figure 2 (not shown), or the nozzle of the exhaust pipe is always inserted into the exhaust channel 1, and is never inserted into the position of the first section 101, and the exhaust is continuously pumped. First, the first section 101 on both sides of the sealing section 102 of the exhaust pipe 1 and the sealing section 102 are softened and squeezed with a clamp so that the inner wall fits in the position of the first section 101 and the sealing section 102. Figure 2 The first section 101, the sealing section 102, and the first section 101 are arranged in sequence to form a temporary seal, and then the sealing section 102 is hot-melted (the clamp at the sealing section 102 is powered on and heated to a set temperature); wherein, the first sections 101 on both sides of the sealing section 102 are temporarily sealed, and there is no pressure difference on both sides of the sealing section 102 and both are sealed, preventing the inner wall of the hot melt from being pushed by the pressure difference. The temporary sealing of the first section 101 between the nozzle of the exhaust pipe and the sealing section 102 solves the technical problem of preventing the hot melt from being sucked away by the exhaust pipe, and the temporary sealing of the first section 101 between the sealing section 102 and the vacuumed object 100 solves the technical problem of the hot melt from being sucked away by the PC vacuum plate.

[0162] In yet another variation, corresponding to Figure 3 In the embodiment shown, the changes are that the positions of the first section 101, the second section 103, and the sealing section 102 are first softened and squeezed with a clamp to make the inner walls fit together, and then the position of the first section 101 is temporarily sealed, and then the sealing section 102 is hot-melted; the temporary sealing of the first section 101 solves the technical problem of preventing the hot-melt position from being sucked away.

[0163] In this embodiment, the heating temperature for hot melting is greater than or equal to 160° C., and the heating temperature for softening is greater than or equal to 130° C. and less than or equal to 140° C.

[0164] Example 5

[0165] like Figure 9 In this embodiment, the vacuum port is the opening section 209 of the multilayer polycarbonate sheet body 2. The component of the vacuum pump that interfaces with the opening section 209 of the multilayer polycarbonate sheet body 2 is a vacuum tube or a vacuum sleeve. The vacuum tube can be connected to any position of the opening section 209 at the beginning of vacuuming, preferably at a position that avoids the first section 101 and the sealing section 102. During vacuuming, the vacuum sleeve is sleeved onto the opening section 209 at a position that avoids the first section 101 and the sealing section 102, thereby ensuring that the outer surface of the opening section 209 at the first section 101 and the sealing section 102 is always exposed to air, allowing the heating fixture to apply pressure and clamp the first section 101 and the sealing section 102.

[0166] Specifically, the preparation method of the polycarbonate vacuum panel includes:

[0167] An open end 201 of the multilayer polycarbonate sheet body 2 is heated to a hot melt temperature by a heating head for hot melting. The hot melted open end 201 is then squeezed with a fixture to allow molecular fusion and finalization. The sheet is then cooled to form a sealed portion 202. In this embodiment, the vacuum spaces formed by the partitions 203 of the multilayer polycarbonate sheet body 2 are isolated from each other and are not interconnected. Therefore, leakage in one vacuum space does not affect the sealing of other vacuum spaces. As a non-limiting example, a gas absorbent and / or the aforementioned vacuum indicator may be placed in one or more vacuum spaces within the multilayer polycarbonate sheet body 2.

[0168] Vacuuming step: sealingly sleeve the vacuuming sleeve of the vacuuming equipment on the other open end 201, vacuuming the multi-layer polycarbonate board body 2, and maintaining the vacuuming state.

[0169] Sealing step: The first part of the opening section 209 of the other open end 201 of the multilayer polycarbonate sheet body 2 is heated, softened and extruded in the air, so that the inner walls of the continuously extruded portion of the opening section 209 adhere to each other to form the first section 101, thereby temporarily closing the pipeline of the opening section 209; the second part of the opening section 209 is hot-melted and extruded to form a sealing section 102, thereby permanently closing the pipeline of the opening section 209; the extrusion of the first section 101 is removed, and the inner walls of the first section 101 remain in contact with each other or a gap is generated between the inner walls of the first section 101.

[0170] In the sealing step, specifically, the first section 101 on both sides of the sealing section 102 of the opening section 209 and the sealing section 102 are softened and squeezed by a clamp so that the inner wall fits in the sealing section 102. Figure 9 The first section 101, the sealing section 102, and the first section 101 are arranged in sequence to form a temporary seal, and then the sealing section 102 is hot-melted (the clamp at the sealing section 102 is powered on and heated to the set temperature); wherein, the first sections 101 on both sides of the sealing section 102 are temporarily sealed, and there is no pressure difference on both sides of the sealing section 102 and both are sealed, to prevent the inner wall of the hot melt from being pushed by the pressure difference. The temporary sealing of the first section 101 between the exhaust sleeve and the sealing section 102 solves the technical problem of preventing the hot melt position from being sucked away by the exhaust sleeve, and the temporary sealing of the first section 101 on the side of the sealing section 102 away from the exhaust sleeve solves the technical problem of the hot melt position being sucked away by the negative pressure in the PC vacuum plate.

[0171] Among them, a constant temperature pressure head is used to soften the first section 101, the sealing section 102, and the first section 101 arranged in sequence, including softening the part of the partition 203 located at the first section 101, the sealing section 102, and the first section 101 to achieve temporary sealing.

[0172] Example 6

[0173] like Figure 11 As shown, this embodiment provides a sunroom that serves as a plant growth chamber. The sunroom includes: panels 801 that can be assembled and disassembled to form an enclosed or semi-enclosed plant growth space for accommodating plants; and an environmental conditioning system that controls environmental parameters within the space to facilitate plant growth. By regulating the parameters within the enclosed space, the quality and yield of plants can be greatly improved, for example, to provide a vegetable supply for a household.

[0174] A sunroom is an enclosed or semi-enclosed plant growing space. It has a floor, a roof, and walls. Its light-transmitting structure can basically meet the lighting requirements for vegetable growth. It is easy to build and does not take up a lot of space. One or more of the floor, roof, or walls of the sunroom are made of polycarbonate vacuum panels.

[0175] The walls are constructed from one or more polycarbonate vacuum panels, machined into adaptable shapes and sizes, and aluminum profile frames 802. The polycarbonate vacuum panels offer excellent light transmittance, essentially meeting the plants' lighting needs. They are lightweight, suitable for modular installation, low-cost, and highly reliable, withstanding strong winds, rain, and snow. The polycarbonate vacuum panels are constructed from two or more overlapping layers, creating a gap between them. The vacuum space within this gap provides thermal insulation. Perpendicular beams are also placed between the layers to enhance the structural strength of the panels. The floor can be made from plastic wood flooring, wood, metal, plastic, or polycarbonate vacuum panels, and can be formed as a single piece or assembled from multiple pieces. The resulting plant growth space is approximately 3 to 6 meters long, 1.8 to 4 meters wide, and 2 to 4 meters high.

[0176] The process of building an enclosed or semi-enclosed plant growing space includes: leveling the foundation, building a rectangular bottom frame on the foundation, and constructing a lightweight and strong aluminum alloy frame with a height of 15 to 25 centimeters. The beams are placed on the foundation frame, and finally, the floor is laid after the sun room is built.

[0177] The installation on the wall includes: a ditch-shaped limiting groove with an upward opening is installed on the bottom frame, the polycarbonate vacuum panel is clamped by two aluminum alloy frames, a polycarbonate vacuum panel and two aluminum alloy frames form an assembly module, the two assembly modules are snap-connected, the bottom of each assembly module is inserted into the ditch-shaped limiting groove, and the top limit is connected to the beam profile groove.

[0178] Environmental conditioning systems include:

[0179] The temperature control system is configured to control the temperature in the space to facilitate vegetable growth. The temperature in the sunroom will rise sharply when there is sunlight, far exceeding the high temperature that vegetables can withstand. At night when there is no sunlight, the temperature will drop to close to the external ambient temperature, which may exceed the low temperature that vegetables can withstand. The large temperature difference between winter and summer also brings great difficulties to the temperature control of the sunroom. The plant growth system of the present invention adopts multiple methods to adjust the temperature, heating or cooling when necessary, wherein the temperature adjustment includes adjusting the overall temperature in the space and adjusting the temperature of the nutrient solution flowing through the roots of the plants. While adjusting the temperature, it is also necessary to ensure the light required for plant growth and the corresponding humidity to be suitable for plant growth.

[0180] The irrigation control system is configured to control the duration and frequency of nutrient solution and / or water applied to the roots of vegetables to facilitate their growth. Different plants require different irrigation strategies, which must be adjusted in real time based on changes in light, temperature, and humidity conditions.

[0181] The lighting control system is configured to control the light irradiated on the vegetables to facilitate their growth, including shading and supplementary lighting as needed; the lighting control system in the present invention can be linked with the temperature control system.

[0182] The gas control system is configured to control the humidity, oxygen, and carbon dioxide concentrations in the space to facilitate vegetable growth; humidity, oxygen, and carbon dioxide concentrations affect the photosynthesis and respiration of plants, and the gas control system needs to monitor and control humidity, oxygen, and carbon dioxide concentrations in real time.

[0183] The nutrient solution control system is configured to control the concentration of various elements in the nutrient solution irrigated to the roots of vegetables to promote their growth. Different vegetables require different concentrations of various elements, so the nutrient solution control system needs to control the nutrient solution preparation for different vegetables.

[0184] The temperature control system includes one or more of the following:

[0185] The first light adjustment device is configured to adjust the area of natural sunlight projected from the top and sides of the space. Figure 15As shown, a sunshade curtain can be used to block light in real time, which can immediately reduce the temperature in the sun room in summer. The sunshade curtain 803 can be driven by a motor and has a high degree of automation. When the temperature is too high, the sunshade curtain can automatically operate according to the instructions of the temperature control system. In addition, the sunshade curtain 803 can arbitrarily control the area of ​​blocking, and the temperature adjustment flexibility is high. The curtain material of the sunshade curtain 803 can be made of sun fabric, which can effectively block the passage of infrared rays and can effectively reduce the temperature. The first light adjustment device includes a sunshade curtain that can cover the roof of the sun room. Sunshade 803 includes a track, a motor drive 809, a pull arm 811, and a curtain 810. The track is installed on the sunroom roof, and the bottom surface of the track is fixed to or integrated with the roof ridge. The track can be an upper cover and lower cover structure, or an I-beam, which limits the direction of the motor's operation and protects the motor and other rotating structures from wind and rain. The motor drive includes a motor and a reduction gear. The pull arm is fixedly connected to the motor drive and is driven by the drive to move left and right along the track. The upper and lower edges of the curtain are equipped with sliding rings, which are mounted on two curtain tracks parallel to the track. The left side of the curtain is fixedly connected to the left beam of the house, and the right side of the curtain is connected to the pull arm. When the pull arm moves left and right, it drives the curtain left and right, achieving the sunshade requirements of the sunroom. In the first embodiment, the spring applies pressure to generate friction between the track and the motor-driven wheel, causing the motor-driven wheel to roll relative to the track, thereby achieving movement of the drive. In a second embodiment, the wheels can be replaced with gears, and a rack is provided in the track. The friction generated by the meshing of the gears and the rack enables the motor to run relative to the track. Two wing-structure pull rod arms are connected on both sides of the motor to slide and unfold or fold the sunshade cloth. Furthermore, a motor can be fixed to one or both ends of the track, and a chain structure is provided in the track. The motor drives the chain to rotate, and the chain drives the two wing-structure pull rod arms to slide. The wing-structure pull rod arms have a sliding limit track, including an upper curtain track connected at a certain height of the two gables, the wings extend outward for a distance at the end of the eaves, and the ends of the two ends of the roof extend a section. The end where the two extended sections intersect has an end curtain track, and the end of the wing has a limit ring, which is sleeved on the end curtain track.

[0186] The second light adjustment device is configured to provide a light source that directly illuminates the interior of the space. A fill light can be used. In winter when there is insufficient sunlight or on rainy days, the fill light can serve as a supplementary light source. When the fill light is turned on, it also generates heat that can be used as a heat source to warm the space. The appropriate amount of fill light can be achieved by adjusting the fill light duration or fill light intensity. When leafy vegetables are planted in multiple layers of overlapping platform planting troughs, the fill lights are evenly installed on the bottom surface of the planting troughs. The fill lights on the bottom surface of the upper planting troughs are aimed at the leafy vegetables in the planting troughs on the lower layer to achieve a fill light effect. The leafy vegetables on the top layer can absorb the most light during the day, so no fill light is required. For fruit vegetables and vertically planted leafy vegetables, the fill lights can be fixedly installed on the aluminum alloy profiles of the sunroom walls, or on the trusses connecting the gables or roofs of the sunroom. The specific location setting should be able to achieve the following condition: vegetables within 0.2 meters to 1 meter can be directly illuminated.

[0187] The first ventilation device is configured to adjust the air power source and provide an air pressure difference between the inside and outside of the space by sucking or exhausting the air in the space. Figure 12 As shown, for example, 2-8 fans 805, or one fan 805, are arranged at a certain height on the south wall, spaced apart to form an air circulation path with the second ventilation device and / or the first water circulation device, for example, 200 cm. A baffle is installed on the outside of fan 805 to prevent cold air from entering the sunroom through the gaps in the fan in winter and causing low temperatures. The baffle is mounted with an electromagnet device. When the electromagnet is energized, the baffle can be attracted to the sunroom wall and closed. When the electromagnet is de-energized, the air discharged from the fan pushes through the baffle to form an air flow path. When in the attracted and closed state, the baffle forms an angle with the vertical plane between 5 and 30 degrees, for example, 5, 10, 15, 20, 25, or 30 degrees. The installation locations of fan 805 are various, including walls, gables and roofs. For ease of operation, it is best to install it on a wall or gable. For example, 2-8 exhaust fans are arranged at a certain height on the west wall or south wall or west gable (higher than 20 cm to prevent the inhalation of viruses and other objects on the ground), or 1 fan 805 is arranged. Since the exhaust fan generates negative pressure, the air flow in the sunroom is from north to south or from east to west. At this time, a facility that can introduce external air is set on the north wall or east wall. Since the ventilation of the sunroom is mainly for cooling, this can achieve the effect of cold air filling the hot air, that is, the air flows from the cold area to the hot area until it is discharged from the sunroom.

[0188] The second ventilation device is configured to adjust the area of free air flow between the space and the outside world. For example, one or two skylights are spaced at a certain height on the north roof. These skylights are driven by a motor to adjust their opening angle. These locations can be coordinated with other devices such as fans and air intake and exhaust vents. Alternatively, skylights can be placed on the west gable or south wall. These locations can be coordinated with other devices such as the inlet fan 805 and the water curtain 804. These skylights are driven by a motor to adjust their opening angle.

[0189] The first water circulation device is configured to adjust the temperature and humidity in the space and exchange air with the outside. The first water circulation device includes a water curtain and a mask. Figure 14 、 Figure 16As shown, the water curtain 804 installed on the north wall is a semi-enclosed heat exchange and ventilation device mounted on a polycarbonate vacuum panel. To adjust the temperature and humidity, a water pump is activated to supply water from a collection tank to a sprinkler pipe. The sprinkler pipe is arranged at the top of the water curtain 804. The water flowing from the sprinkler pipe is distributed on the surface of the polymer material layer, which is made of kraft paper or other polymer materials. When there is an air pressure difference between the inside and outside of the sunroom, the air flowing through causes the moisture on the kraft paper surface to evaporate, removing a large amount of heat, thereby achieving the purpose of cooling. The water flowing from the kraft paper ultimately flows into the collection tank, which is equipped with a UVC sterilizer. A hollow cross-sectional notch is provided on the north wall, and the water curtain 804 is embedded in this hollow cross-sectional notch. The cross-sectional notch is installed with an aluminum alloy frame, so that the water curtain can be supported by the frame. The mask seals the water curtain 804 by covering the cross-sectional notch from the outside, preventing outside air from entering the sunroom through the water curtain when sealing is required; or the mask seals the water curtain by covering the cross-sectional notch from the inside. The water curtain includes a top water spray pipe, a bottom recovery device, and an open heat exchange and ventilation device. The heat exchange and ventilation device is made of kraft paper or polymer material, and has a basic honeycomb structure. The kraft paper or polymer material is a rectangular paper strip with a curved and wavy surface, with the length direction perpendicular to the ground and the width direction perpendicular to the wall. The waves between the two layers of kraft paper or polymer material form multiple small pores, thus forming a honeycomb structure. The water flowing out of the top water spray pipe naturally falls and flows through the heat exchange and ventilation device. Because the fan installed opposite the water curtain provides negative pressure in the space, the outside air in the space will enter the space through the heat exchange and ventilation device. When flowing through the heat exchange and ventilation device, the water is vaporized, removing the heat in the air. The bottom recovery device is a slightly angled water trough that collects dripping water into a water tank for recycling. When the water level sensor detects that the water tank water level falls below the warning value, the solenoid valve automatically opens to replenish water. The water tank is also equipped with a sterilizing UVC LED light to eliminate viruses and bacteria in the water tank. The water curtain structure is essentially integrated with the sunroom. This embodiment controls the area and air volume of the water curtain to achieve a wind speed of 1-3m / s through the water curtain, maintaining a reasonable humidity and temperature. The water curtain is installed on the north wall and the fan is installed on the south wall, forming a convection circuit to ensure uniform air flow throughout the sunroom. Alternatively, the water curtain can be installed on the east wall and the exhaust fan on the west wall, forming a convection circuit to ensure uniform air flow throughout the sunroom. In terms of quantity, two or three water curtains can be arranged from top to bottom, and the fans can be arranged in two or three rows to ensure uniform temperature and humidity distribution within the room.

[0190] More specifically, if Figure 16 As shown,

[0191] Water pump 8047 pumps disinfected water from a water tank equipped with a UVC disinfection lamp 8046 into a top water pipe located above a multi-layer kraft paper layer 8042. Water leaks down through holes 8041 in the top water pipe into the multi-layer kraft paper layer 8042. Wind blowing toward the multi-layer kraft paper layer 8042 drives the moistened water molecules from the multi-layer kraft paper layer 8042 into the interior space of the sunroom, where plants are located, achieving the effect of cooling and humidifying the interior space. The water then flows through the multi-layer kraft paper layer 8042 to the bottom collection pipe 8043, where it is collected and then flows into the water tank. The water tank is equipped with a high water level sensor 8044 and a low water level sensor 8045. When a high water level is detected, the solenoid valve closes to stop water addition. When a low water level is detected, the solenoid valve opens to allow water addition.

[0192] A second water circulation device, such as a sprinkler head, is positioned at the top of the room, spraying clean water directly into the room on a scheduled basis or based on temperature and humidity requirements. The sprinkler head can include a spray device connected to an above-ground delivery pipeline. The spray device comprises a high-pressure water pump and a nozzle. The high-pressure water pump pumps clean water to the nozzle on the sunroom roof, forming an aerosol mist to achieve cooling and humidification. The sprinkler head can be connected to the water curtain's water supply pipe and branched.

[0193] The third water circulation device transfers heat between the air and soil through an underground water circulation system, enabling heat exchange between the sunroom's internal air and the underground soil. This third water circulation device includes a liquid storage tank configured to store clean water; fluid conduits configured to deliver clean water to the sunroom's PC panels and return the clean water to the liquid storage tank; and an underground heat exchanger configured to allow the clean water flowing through the heat exchanger to exchange heat with the underground soil or liquid surrounding the heat exchanger. The fluid conduits include an underground delivery conduit, an above-ground delivery conduit, an above-ground return conduit, and an underground return conduit. The underground heat exchanger is designed to maintain a temperature difference between the clean water and the underground soil or liquid of less than 1°C. The heat exchanger is located at a depth of less than 200 cm underground, where the surrounding soil has a significant temperature difference from the ambient environment, resulting in warmth in winter and coolness in summer.

[0194] The lighting control system includes the first lighting adjustment device and the second lighting adjustment device mentioned above.

[0195] The gas control system includes the above-mentioned first ventilation device, second ventilation device and first water circulation device.

[0196] The plant cultivation method provided in this embodiment includes one or more of the following:

[0197] Aerosol cultivation can be used, that is, building a plant growth rack, for example, setting multiple holes on a slope, wall or inverted V bracket, passing the plants through the holes, exposing the roots on the side of the slope facing the ground, or the backlit side of the wall, or the inside of the inverted V bracket, and exposing the leaves or fruits on the side facing the sun. The nutrient solution is transported through a transmission pipe to a pressurized nozzle of a high-pressure pump, and the position of the nozzle is set just enough to spray nutrient solution mist onto the roots of the plants. This method can provide the roots with a good combination of fertilizer, water and oxygen. Oxygen is fully dissolved in the nutrient solution, and the nutrient solution and air are fully mixed, making the plant roots highly tolerant to the ambient temperature, greatly improving the quality and yield of the plants. However, the nozzles are easily clogged by impurities (nutrient solution sediment, washed-down organic matter, etc.), causing the motor to stall and burn out. Therefore, the life of the high-pressure water pump is short. In addition, since the roots of the plants need to be irrigated evenly by spraying, a nozzle needs to be installed at a certain interval, and a transmission pipe needs to be laid. The installation of the entire device is relatively complicated, and the enclosed space inside the inverted V bracket is large. The temperature in the space is easily increased under sunlight. To overcome this problem, a light-colored plant growth rack can be used. In addition, each growth rack needs to occupy a certain space independently, which makes it impossible to achieve high-density planting.

[0198] Another approach is hydroponics, where the roots of the plants are immersed in a nutrient solution. This method is simple to control, requires simple irrigation equipment, and is low-cost, but its tolerance to temperature and nutrient solution concentration is lower than that of aeroponics. Multi-layered, petal-shaped plant stands are a form of hydroponics, but their disadvantage is that they can easily cause mold to form on the plant roots, leading to root rot. The plant stand is a hollow column with a bottom-up transmission tube inside the column. The nutrient solution is transported from the bottom to the top of the column, where it naturally drips to the plant roots under the influence of gravity, leaving the stems and leaves growing on the outer sides of the column.

[0199] Another method is to use a matrix cultivation method, where the plant's roots are planted in a matrix in a growing trough and the matrix is soaked with a nutrient solution. The matrix can be made of coconut coir or ceramsite. Coconut coir has a good temperature-release property, preventing rapid temperature fluctuations at the plant's roots. Coconut coir also has low transportation costs, and unexpanded coconut coir blocks can be transported and stored, then expanded upon use, expanding by 12 times. However, the expansion of coconut coir produces polluted water and requires waste disposal. This method can slow the evaporation of the nutrient solution and facilitates heat preservation, but matrix preparation is more complex. The growing trough is rectangular, with water pumps spaced at intervals to drip-irrigate the coconut coir with nutrient solution. Ceramsite has slightly lower temperature-release properties than coconut coir, is less expandable, and has higher transportation costs. However, ceramsite is cleaner and does not produce wastewater, making it a good matrix for soilless cultivation.

[0200] You can also use tidal irrigation, which involves periodically soaking the roots of the plants in nutrient solution and then draining the solution after a certain period of time. This method makes it less likely for the plants to grow mold.

[0201] Among them, the hydroponic method and tidal irrigation method can place the roots of the plants in perlite and / or expanded clay, or a growth board can be fixed on the upper edge of the plant growth trough, and holes can be set on the growth board. The plant roots are placed downward and the leaves are placed upward, passing through the holes, and the roots naturally hang down in the plant growth trough. Each plant can be planted in a growth cup, and the growth cup opening is facing upward through the hole. The lower diameter of the growth cup is smaller than the hole, and the upper diameter is larger than the hole, so that the growth cup buckle is suspended in the hole of the growth board.

[0202] like Figure 12 As shown, the irrigation control system includes one or more of the following:

[0203] The first irrigation device 808 is configured as a trough and is located on the north and / or west side of the sunroom. It is used for hydroponic cultivation or tidal irrigation to cultivate leafy vegetables and seedlings. Multiple first irrigation devices can be stacked. For example, multiple triangular support frames can be arranged horizontally on the wall. A supporting strip is fixed to the triangular support frames, and the first irrigation devices are placed on the supporting strip. A supporting strip is arranged at the wall height of 0 cm, 75 cm, and 150 cm, respectively, to achieve high-density planting. Alternatively, a supporting strip can be arranged at the wall height of 40 cm, 110 cm, and 180 cm.

[0204] The second irrigation device is configured in a columnar shape and is located in the middle of the sunroom. It has multiple layers of petal-shaped grooves stacked along the axial direction to accommodate plants, or holes extending radially for plants to extend their leaves. The roots of the plants remain inside the column axis and can be used for tidal irrigation (the system calculates the time for the water pump to transport nutrient solution to the top of the column axis, which flows layer by layer through the petal-shaped grooves until it flows back to the nutrient solution pool at the bottom).

[0205] The third irrigation device is configured in a trough shape and is located on the east or west side of the sun room for accommodating a substrate soaked in nutrient solution, such as coconut bran, for growing fruits and vegetables. A climbing frame is hung from the beams of the roof to the third irrigation device for plants to climb.

[0206] The nutrient solution control system includes:

[0207] The liquid storage tank, or nutrient solution tank 806, is installed on the sunroom floor. It is a rectangular trough with a double-layered, soft PVC outer skin forming a bag-like structure. The four corners of the bottom are fixed to form the bottom of the tank. It is placed on the floor below each plant planting area. The double-layered, soft PVC outer skin forms a bag-like structure. Air is inflated between the two layers of soft skin, causing it to expand into a pool with a flat bottom. When not inflated, it can be curled into a ball or column, reducing installation and transportation costs. Alternatively, the tank can be composed of multiple connected, foldable panels, with the double-layered, soft PVC outer skin forming a bag-like structure. A hollow PVC sheet is placed flat between the two layers of soft skin. Each PVC sheet is bonded together by the double layers of skin to isolate it from others. This structure provides insulation and allows the tank to be folded, reducing installation and transportation costs. Each type of plant can have a corresponding nutrient solution tank, achieving the optimal nutrient solution ratio for each plant.

[0208] The fertilizer tank is installed on the north wall of the sunroom, above the floor and unobstructed, making it easy for users to configure various fertilizer elements. This avoids bending over to add fertilizer to the nutrient solution tank located below the planting rack, and allows for easy pouring of the fertilizer into the nutrient solution tank after stirring in the basin. The fertilizer tank is an upward-opening water tank with a flushing device connected to the nutrient solution tank via a water pipe. The nutrient solution tank has a stirring device to promote the dissolution of fertilizer or waste liquid in the water. The flushing device is used to flush the liquid in the fertilizer tank into the nutrient solution tank.

[0209] Three types of fertilizer containers, such as bags and bottles, can be provided to users, designated Fertilizer Bag A, Fertilizer Bag B, and Fertilizer Bottle C, respectively. The fertilizers in each fertilizer container do not chemically react with each other. Fertilizer Bag A contains solid compounds of major or medium-quantity elements, Fertilizer Bag B contains solid compounds of major or medium-quantity elements, and Fertilizer Bottle C contains compounds of trace elements. Because the required quantities are small and difficult to weigh, they are dissolved in water and stored in Fertilizer Bottle C. Fertilizer Bag A, Fertilizer Bag B, and Fertilizer Bottle C contain the elements required for each vegetable in a strictly proportioned manner. The quantities of Fertilizer Bags A, B, and C provided to users are strictly calculated based on the volume of fertilizer to be added at a time, requiring exactly one bag A, one bag B, and one bottle C. The fertilizers in Fertilizer Bag A, Fertilizer Bag B, and Fertilizer Bottle C are dissolved in water and then flow through the fertilizer tank into the nutrient solution tank.

[0210] There can also be multiple fertilizer pools, with multiple water pipes at the bottom of the sink. The water pipes are controlled by respective water valves to conduct and close, and each water pipe is connected to a nutrient solution pool. When preparing the nutrient solution, different fertilizers can be introduced according to the needs of different plants, and then clean water is discharged from the top of the fertilizer pool to mix and stir the fertilizers. After the fertilizers are dissolved, the water pipe connected to the nutrient solution pool corresponding to the plant is opened to add fertilizer to the nutrient solution pool.

[0211] In a preferred embodiment, different fertilizers are poured into different measuring cups, stirred evenly with water, and then poured into the fertilizer tank, opening the corresponding water valve to introduce the corresponding nutrient solution tank. Then, some clean water is added to the fertilizer tank to clean it, and then the corresponding nutrient solution tank is introduced. The reason for not stirring in the fertilizer tank is that the inner wall of the fertilizer tank is irregularly shaped, which prevents solid fertilizer from being fully dissolved in the gaps after entering, resulting in residue.

[0212] The delivery pipelines 807 are connected to the nutrient solution tanks 806 respectively to deliver the nutrient solution to the roots of the plants.

[0213] Inside this plant growth room, multiple layers of primary irrigation systems can be placed on the southeast side for growing sprouts and leafy vegetables, a third irrigation system can be placed on the north side for irrigating fruits and vegetables, and a second irrigation system can be placed in the center for growing leafy vegetables. Water curtains can be placed on the north wall, a skylight can be placed on the north roof, fans can be placed on the south wall, sunshades can be placed on the roof, fill lights and sprinklers can be placed on the roof, nutrient solution tanks for different plants can be placed on the floor, a door can be placed on the west wall, a liquid storage tank can be placed in the northwest corner, and an operating table or shelf can be placed in the southwest corner. All irrigation methods in the room can be freely adjusted.

[0214] The first irrigation device 808 is a rectangular water tank, which is composed of multiple connected foldable plates. The double-layer soft outer skin made of PVC material forms a bag-like structure. The PVC plate is placed flat in the middle of the double-layer soft outer skin. Each PVC plate is bonded together by the double-layer outer skin to isolate each other. The PVC material and structure have a heat-insulating effect and can make the water tank foldable, reducing installation and transportation costs.

[0215] Nutrient solution pool 806 is pumped into the top first irrigation device 808 via a water pump. This inclined first irrigation device 808 houses a closed negative pressure drainage system, comprising an inverted U-shaped negative pressure chamber with an upward-facing drainage pipe. The bottom of the inverted U-shaped chamber features a drainage port, the height of which is determined by the water's retention time. Nutrient solution flowing into the top first irrigation device 808 follows the inclination of the first irrigation device 808 to the bottom, where it is drained through a pipe into the next first irrigation device 808, continuing the cycle until it returns to the nutrient solution pool 806.

[0216] The top edge of the sink has a slot, and the planting board covers the sink and is placed on the slot. The planting board has holes, and the planting cups are inserted into the holes. The roots of the plants in the planting cups are scattered in the sink. The depth of the sink ranges from 0.5 to 20 cm. The sides of the planting cups are not closed, allowing the plants to grow freely.

[0217] In this example, all fertilizers are divided into three types: two are compounds of macro- or micro-elements, and one is a compound of trace elements. The macro-elements are divided proportionally by separating the chemically non-reactive compounds into two fertilizers. The required amount of fertilizer is calculated based on the size of the nutrient solution tank, and each is packaged into two small solid bags, designated A and B. The third type, consisting of trace elements, is difficult to weigh due to its small size. Therefore, these are dissolved in water, extracted based on the size of the nutrient solution tank and the required dosage ratio, and the required pH is calculated. A certain amount of acid is then added and packaged together in a single bag, designated C. A total of three bags of fertilizer are provided: A, B, and C.

[0218] Compared to a completely solid solution, the two solids plus one liquid solution significantly improves the accuracy of nutrients and significantly reduces the volume and weight of nutrients compared to a completely liquid solution. Experiments have shown that this nutrient solution configuration fully meets the requirements for vegetable growth.

[0219] The optimum temperature range for most vegetable growth is 10°C to 28°C. At night, the temperature inside an unheated, enclosed sunroom is roughly close to the outdoor temperature. During the day, due to solar radiation, the temperature inside a closed sunroom can easily rise by 20°C to 30°C above the outdoor temperature. Temperature regulation is crucial to the success of vegetable growth. Simply using an exhaust fan to expel hot air from the room is not very effective in cooling. Based on this, the preferred embodiment adds sunshades. While this solution significantly reduces the duration of sunlight exposure, vegetable yields decrease significantly. However, the indoor temperature still cannot fall below the outdoor temperature, making it unsuitable for vegetable growth during hot weather. Based on this, the preferred embodiment adds water curtains. The water on the curtains evaporates in the wind, dissipating a significant amount of heat. This can reduce the indoor temperature by up to 10°C below the outdoor temperature. These three factors combined can lower the temperature inside the sunroom while ensuring maximum possible sunlight. If the temperature inside the sunroom needs to be increased, resistance wire heating is used. This embodiment preferably meets both temperature and humidity requirements, creating optimal conditions for vegetable growth. After repeated experimental verification of environmental linkage control from winter to summer and from summer to winter, this embodiment adopts a comprehensive control method using water curtains, fans, sunshades, and indoor resistance wire heating to cost-effectively and effectively control the temperature and humidity in the sunroom within a reasonable range throughout the year. The resulting humidity VPD = 0.61078 × exp(17.27 × Ta / (Ta + 237.3)) × (1-RH) is controlled within the range of 0.8 to 1.2, which is suitable for vegetable growth. Here, Ta represents the ambient temperature in degrees Celsius, and RH represents the relative humidity. A VPD value of 0.8 to 1.2 is a relatively good range for vegetable growth.

[0220] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0221] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A vacuum interface, characterized in that: The air extraction interface is an air extraction pipe (1) or an opening section (209); One end of the air extraction interface is connected to the object to be extracted (100), and the sealing structure comprises a first section (101) located at the air extraction interface and a sealing section (102); The inner walls of the pipe of the air extraction interface at the location of the first section (101) are in contact with each other or have a gap; The pipeline of the air extraction interface is sealed at the location of the sealing section (102); Along the extension direction of the air extraction interface, at least one of the first sections (101) is located on a side of the sealing section (102) close to the object (100) to be extracted; At least one of the first sections (101) is located on a side of the sealing section (102) away from the object (100) to be evacuated; or, no first section (101) is located on a side of the sealing section (102) away from the object (100) to be evacuated; The outer wall of the first section (101) has traces of being squeezed inwards; The outer wall of the sealing section (102) has traces of being squeezed inwards.

2. The air extraction interface according to claim 1, characterized in that: The material of the air extraction interface is polycarbonate; The first section (101) of polycarbonate is a portion of the exhaust interface that is allowed to be extruded after being softened by heating; The sealing section (102) of polycarbonate is a portion of the exhaust interface that allows molding after hot melting; The length of the first section (101) along the extension direction of the air extraction interface is greater than or equal to 1 mm, and the length of the sealing section (102) along the extension direction of the air extraction interface is greater than or equal to 1 mm.

3. The air extraction interface according to claim 1 or 2, characterized in that: The sealing structure further includes a second section (103) located at the air extraction interface; Along the extension direction of the exhaust interface, the second section (103) is located between the first section (101) and the sealing section (102) facing each other, forming a thermal resistance between the two during the heating process; Along the extension direction of the air extraction interface, the length of the second section (103) is greater than or equal to 1 mm; The inner walls of the pipe of the air extraction interface at the location of the second section (103) are in contact with each other, or have a gap, or have a cavity; The second section (103) of polycarbonate is a portion of the exhaust interface that is allowed to be extruded after being softened by heating.

4. A polycarbonate vacuum panel, characterized in that: include: A multilayer polycarbonate plate body (2) and an exhaust interface according to any one of claims 1 to 3; The hollow interior of the multi-layer polycarbonate sheet body (2) includes a vacuum space (200); The sealing portion (202) of at least one open end (201) of the multilayer polycarbonate plate body (2) and the exhaust pipe (1) serving as the exhaust interface as described in any one of claims 1 to 3 are an integrally formed structure; or, a portion of the multilayer polycarbonate plate body (2) forms an opening section (209) of the exhaust interface as described in any one of claims 1 to 3.

5. The polycarbonate vacuum panel according to claim 4, characterized in that: The multi-layer polycarbonate plate body (2) comprises a plurality of polycarbonate plates (204), and a plurality of spacers (203) are connected between two polycarbonate plates (204) facing each other; There is a gap (205) between the end of the spacer (203) and the sealing portion (202) of the open end (201), and the gap (205) constitutes a channel connecting the subspaces (206) separated by the spacer (203) from the vacuum space (200); The channel is located on the side of the sealing portion (202) of the multi-layer polycarbonate plate body (2) where the air extraction pipe (1) is located.

6. The polycarbonate vacuum panel according to claim 5, characterized in that: The vacuum space (200) is provided with a gas absorbent and / or a vacuum indicator.

7. A vacuum indicator suitable for indicating the vacuum degree of the polycarbonate vacuum panel according to any one of claims 4 to 6, characterized in that: include: A hollow tube (3), an air bag (4) and a shielding portion (5); The airbag (4) sealing sleeve is arranged at one end of the hollow tube (3), the shielding portion (5) is connected to the end of the hollow tube (3) where the airbag (4) is located and extends axially outward, and the other end of the hollow tube (3) is sealed; When the external air pressure is lower than the internal air pressure of the hollow tube (3), the airbag (4) is shielded by the shielding portion (5); when the external air pressure is greater than or equal to the internal air pressure of the hollow tube (3), the airbag (4) enters the hollow tube (3) under the action of the external air pressure and emerges from the shielding portion (5).

8. The vacuum indicator according to claim 7, characterized in that: It also includes an air extraction interface, which is an air extraction pipeline (1) or an opening section (209); One end of the air extraction interface is connected to an object to be extracted (100), and the sealing structure comprises a first section (101) located at the air extraction interface and a sealing section (102); The inner walls of the pipe of the air extraction interface at the location of the first section (101) are in contact with each other or have a gap; The pipeline of the air extraction interface is sealed at the location of the sealing section (102); Along the extension direction of the air extraction interface, at least one of the first sections (101) is located on a side of the sealing section (102) close to the object (100) to be extracted; At least one of the first sections (101) is located on a side of the sealing section (102) away from the object (100) to be evacuated; or, no first section (101) is located on a side of the sealing section (102) away from the object (100) to be evacuated; The outer wall of the first section (101) has traces of being squeezed inwards; The outer wall of the sealing section (102) has traces of being squeezed inwards; The material of the hollow tube (3) is polycarbonate; The other end of the hollow tube (3) and the air extraction interface are integrally formed.

9. A sun room, characterized in that: include: The panels (8) can be spliced and disassembled to form a closed or semi-closed plant growth space; An environmental regulation system for controlling environmental parameters of the plant growth space; The plate (8) comprises the polycarbonate vacuum panel according to any one of claims 4 to 6; or, the plate (8) has the exhaust interface according to any one of claims 1 to 3.

10. The sun room according to claim 9, characterized in that: The environmental conditioning system includes the following devices located on the air circulation path of the sun room: a first ventilation device configured to regulate the air power source and provide an air pressure difference between the inside and outside of the plant growth space by sucking or exhausting air in the space; a first water circulation device configured to regulate the temperature and humidity in the plant growth space and to exchange air with the outside; Also includes any one or more of the following devices: a first light adjustment device configured to adjust an area of natural sunlight projected from a top of the plant growth space; a second light adjustment device configured to provide a light source that directly illuminates the interior of the plant growth space; a second ventilation device configured to adjust the contact area of the plant growth space for free circulation of air between the interior and exterior of the space; a second water circulation device configured to spray clean water into the plant growth space at a fixed time or according to temperature; a third water circulation device configured to exchange heat between the air in the plant growth space and the external underground soil; The first irrigation device is configured in a trough shape and is located on the south side and / or the east side of the plant growth space, and cultivates plants using a hydroponic method or a tidal irrigation method; The second irrigation device is configured in a columnar shape and is located in the middle of the plant growth space. It has multiple layers of petal-shaped grooves stacked along the axial direction for accommodating plants, or holes extending radially for plants to extend their leaves. The plant roots remain inside the column axis, and tidal irrigation is used to cultivate plants; The third irrigation device is configured in a trough shape and is located on the north side of the plant growth space, and uses a drip irrigation cultivation method to cultivate plants; The fourth irrigation device is configured as a perforated support, wherein the plants pass through the holes and the roots are located on the side of the perforated support that is not exposed to light, and the plants are cultivated using an aeroponic method; A plurality of nutrient solution tanks (806) are installed under or on the floor of the sun room; At least three fertilizer solution tanks are installed on the backlit wall of the sun room, with multiple water pipes at the bottom, connected to different nutrient solution tanks; Alternatively, a fertilizer liquid tank is installed on the backlit wall of the sun room, with a water pipe at the bottom connected to the nutrient solution tank; wherein the fertilizer liquid tank is located above the floor and is not obstructed; The delivery pipelines (807) are connected to the nutrient solution pools to deliver the nutrient solution to the roots of the plants.

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