A T-shaped greenhouse pipe and an agricultural greenhouse using the greenhouse pipe

Abstract

The present invention discloses a T-shaped greenhouse pipe and an agricultural greenhouse applying the same, belonging to the field of agricultural greenhouses. A T-shaped greenhouse pipe and an agricultural greenhouse applying the same are provided with a card slot on the T-shaped pipe, and a reaction box is arranged in the card slot. Cooperating with the protective pad at the top of the card slot, when the snow accumulation on the top of the T-shaped pipe is too heavy, the protective pad will be sunken downward, driving the protective pad to move downward, so that the sharp cone pierces the solid hemisphere, and when the self-heating material in the solid hemisphere contacts the air, a reaction occurs, releasing heat. After the heat is quickly absorbed by the solid hemisphere, it is rapidly transferred to the expander between the protective layer and the reaction box, and finally the expander in the reaction ball reacts to absorb heat and expand, finally pushing the protective pad to bulge upward again, melting part of the snow accumulation with the heat in the card slot, so as to push away the too heavy snow accumulation on the top of the pipe body, reduce the pressure on the top of the T-shaped pipe, and improve the support effect and service life of the pipe body.

Description

Technical Field

[0001] The present invention relates to the field of agricultural greenhouses, and more specifically, to a T-shaped greenhouse pipe and an agricultural greenhouse using the greenhouse pipe. Background Art

[0002] A greenhouse is made of materials such as bamboo poles, cement poles, light steel pipes or pipes as the framework, and is made into columns, tie rods, arch rods and press rods, and covered with plastic film to form an arched material shed. Agricultural greenhouses are used for agricultural planting, generally divided into ordinary greenhouses, greenhouse greenhouses and intelligent greenhouses. Some equipment is generally installed in greenhouse greenhouses and intelligent greenhouses to improve the survival rate of planting. Some equipment can also improve the support effect between the greenhouse pipe structures and enhance the service life of agricultural greenhouses.

[0003] The greenhouse pipe is the main support structure for building a greenhouse. Generally, a long pipe is bent, and multiple bent greenhouse pipes are combined together to form the framework structure of the greenhouse.

[0004] When traditional greenhouse pipes are erected in cold regions, there is a lack of a structure for timely treatment of snow accumulation on the greenhouse roof, resulting in a large amount of snow accumulation at the bent parts of the greenhouse pipes, which easily causes the risk of breakage of the greenhouse pipes and reduces the service life of the greenhouse pipes. Summary of the Invention

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a T-shaped greenhouse pipe and an agricultural greenhouse using the greenhouse pipe, which can realize melting part of the snow through an exothermic reaction and an expansion reaction, and pushing away the excessive snow on the top of the pipe body, reducing the pressure on the top of the T-shaped pipe, and improving the support effect and service life of the pipe body.

[0007] 2. Technical Solutions

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A T-shaped greenhouse pipe and an agricultural greenhouse using the greenhouse pipe, including a T-shaped pipe. The cross-sectional shape of the orifice of the T-shaped pipe is T-shaped, and both ends are arc-shaped surfaces with different sizes. The corresponding diameters of the arc-shaped surfaces are 30 mm and 20 mm respectively, and the maximum distance between the two ends of the arc is 60 - 80 mm. The wall thickness of the T-shaped pipe is 2.5 mm - 3.5 mm. Through the above data, combined with the T-shaped orifice with a larger upper part and a smaller lower part, the overall support strength of the T-shaped pipe can be improved, the bending of the T-shaped pipe is convenient, and the support effect of the T-shaped pipe can be better improved.

[0010] Furthermore, a card slot is provided at the top of the bending center of the T-shaped pipe, and a reaction box is clamped in the card slot. A protective pad is provided directly above the card slot, and the protective pad is fixedly connected to the top of the T-shaped pipe. A protective layer is fixedly connected to the bottom of the inner wall of the reaction box, and an expanding agent is filled between the protective layer and the inner wall of the reaction box. The top of the protective layer is fixedly connected through the reaction ball. A sharp cone is provided directly above the reaction ball, and the top of the sharp cone is fixedly connected through the protective pad. The reaction ball is divided into a solid hemisphere and a hollow hemisphere, and the solid hemisphere and the hollow hemisphere are adhesively connected to each other. A self-heating material is filled between the solid hemisphere and the hollow hemisphere. By providing a card slot at the top of the T-shaped pipe and fixing the reaction box in the card slot, a protective layer is provided in the reaction box, and an expanding agent is filled between the protective layer and the reaction box. When the snow on the top of the T-shaped pipe is too heavy, the protective pad sinks downward, driving the protective pad to move downward, so that the sharp cone pierces the solid hemisphere, causing the self-heating material in the solid hemisphere to react with the air, releasing heat. After the heat is quickly absorbed by the solid hemisphere, it is quickly transferred to the expanding agent between the protective layer and the reaction box. Finally, the expanding agent in the reaction ball reacts, absorbs heat and expands, finally pushing the protective pad to bulge upward again, melting part of the snow with the heat in the card slot, so as to push away the too heavy snow on the top of the pipe body, reduce the pressure on the top of the T-shaped pipe, and improve the support effect and service life of the pipe body.

[0011] Furthermore, a T-shaped frame is fixedly connected to the inner wall of the T-shaped pipe. A reinforcing strip is fixedly connected to the bottom end of the T-shaped frame, and the reinforcing strip is fixedly connected to the inner wall of the T-shaped pipe. By providing a T-shaped frame in the T-shaped pipe, the strength of the pipe body during bending can be improved through the shape of the T-shaped frame, and it can be achieved to avoid the T-shaped pipe from breaking during bending and support. By fixedly connecting the T-shaped frame and the reinforcing strip, the strength of the bottom of the pipe body can be improved, avoiding the support effect at the bottom of the pipe body.

[0012] Furthermore, the material of the solid hemisphere is copper metal, the materials of the hollow hemisphere and the protective layer are both elastic waterproof membranes, the self-heating material is reduced iron powder, and the material of the expanding agent is ammonium bicarbonate. The good thermal conductivity of the copper metal material itself can quickly conduct the heat released by the self-heating material into the expanding agent, improving the reaction efficiency. Through the elastic waterproof membrane, it can be achieved to avoid the self-heating material from reacting prematurely when encountering water, resulting in failure. At the same time, when the sharp cone descends, it is convenient to quickly pierce and expose the internal self-heating material to the air, accelerating the heat generation reaction.

[0013] Furthermore, a plurality of heat conducting wires are fixedly connected to the bottom of the solid hemisphere, and the heat conducting wires are made of aluminum metal. The heat conducting wires are buried in the expander. By fixedly connecting a plurality of heat conducting wires made of aluminum metal to the bottom of the solid hemisphere and burying them in the expander, the heat conduction effect of the solid hemisphere can be improved, and the reaction rate and effect of the expander can be enhanced.

[0014] Furthermore, an insulating layer is fixedly connected to the top of the inner wall of the hollow hemisphere. A green fluorescent dye is filled between the insulating layer and the hollow hemisphere. A plurality of spring wires are fixedly connected to the outer wall of the insulating layer. One end of each of the plurality of spring wires away from the insulating layer is fixedly connected to the inner wall of the hollow hemisphere, and the spring wires are in a compressed state. When the tip continuously descends under the drive of the protection pad, its bottom end will successively pierce through the hollow hemisphere and the insulating layer. At this time, the compressed state of the plurality of spring wires will change to a straightened state due to the rupture of the hollow hemisphere, and then will push the aperture of the rupture of the hollow hemisphere to become larger, so that the contact area between the self-heating material and the air is increased, and the efficiency of the heat generation reaction is accelerated.

[0015] Furthermore, a cavity is formed in the tip, and a sponge rod is filled in the cavity. The top end of the sponge rod is fixedly connected to a sponge block, and the sponge block is fixedly connected to the upper surface of the protection pad. By arranging a sponge rod in the cavity of the tip, when the tip pierces through the insulating layer, the green fluorescent agent in the insulating layer can be absorbed by the sponge rod and transmitted to the sponge block, and finally the integrity of the hollow hemisphere can be prompted to the user through the sponge block.

[0016] Furthermore, the protection pad is made of a high-temperature resistant elastic material, and a plurality of air inlet holes for the air to enter the card slot are arranged on the protection pad. Due to the characteristics of the high-temperature resistant elastic material, when the weight of the snow is too heavy, the protection pad will sink downward, and it is convenient for high temperature to damage the protection pad. And a plurality of air inlet holes for the air to enter the card slot are arranged on the protection pad, which can facilitate the air to enter and further react with the self-heating material, and promote the reaction effect.

[0017] Furthermore, a strengthening groove is formed at the bottom of the bending center of the T-shaped tube. A color display sleeve is fixedly connected to the inner wall of the strengthening groove. The color display sleeve is made of stainless steel, and a red fluorescent dye is filled in the tube. By connecting the color display sleeve and the card slot, the strength of the bottom of the T-shaped tube can be improved. At the same time, through the red fluorescent dye, when the bottom of the T-shaped tube is bent excessively and the color display sleeve is ruptured, at this time, the red fluorescent dye flows out, which can prompt the maintenance personnel to replace and maintain in time.

[0018] Furthermore, there are multiple sets of T-shaped pipes, and both ends of the multiple sets of T-shaped pipes are fixedly connected with bottom plates. The bottom plates are made of metal steel and are coated with anti-rust paint on the surface. A large tarpaulin is commonly installed on the outer arc contours of the multiple sets of T-shaped pipes. Both sides of the large tarpaulin are clamped with the two bottom plates respectively. By fixedly connecting the bottom plates at both ends of the multiple sets of T-shaped pipes and clamping both sides of the large tarpaulin with the two bottom plates respectively, it is convenient to install and fix the multiple sets of T-shaped pipes, improve the stability of the T-shaped pipes, and at the same time improve the stability of the large tarpaulin after installation, ultimately enhancing the stability of the agricultural greenhouse.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are as follows:

[0021] (1) In this solution, a card slot is opened at the top of the T-shaped pipe, and a reaction box is fixed in the card slot. A protective layer is arranged in the reaction box, and an expanding agent is filled between the protective layer and the reaction box. When the snow on the top of the T-shaped pipe is too heavy, it causes the protective pad to sink downward and drives the protective pad to move downward, so that the sharp cone pierces the solid hemisphere, and the self-heating material in the solid hemisphere reacts with the air when in contact, releasing heat. After the heat is quickly absorbed by the solid hemisphere, it is rapidly transferred to the expanding agent between the protective layer and the reaction box. Finally, the expanding agent in the reaction ball reacts and expands by absorbing heat, and finally pushes the protective pad to bulge upward again, melting part of the snow in cooperation with the heat in the card slot, so as to push away the too heavy snow on the top of the pipe body, reduce the pressure on the top of the T-shaped pipe, and improve the support effect and service life of the pipe body.

[0022] (2) In this solution, the cross-sectional shape of the T-shaped pipe opening is T-shaped, and both ends are arc-shaped surfaces with different sizes. The corresponding diameters of the arc-shaped surfaces are 30 mm and 20 mm respectively, and the maximum distance between the two ends of the arc is 60 - 80 mm. The wall thickness of the T-shaped pipe is 2.5 mm - 3.5 mm. With the above data and the T-shaped pipe opening being larger at the top and smaller at the bottom, the overall support strength of the T-shaped pipe can be improved, it is convenient to bend the T-shaped pipe, and the support effect of the T-shaped pipe can be better improved. At the same time, a T-shaped frame is arranged in the T-shaped pipe. The shape of the T-shaped frame can improve the strength of the pipe body when the T-shaped pipe is bent, and it can avoid the T-shaped pipe from breaking when bent and supported. By fixedly connecting the T-shaped frame with the reinforcing strip, the strength of the bottom of the pipe body can be improved, and the support effect of the bottom of the pipe body can be enhanced.

[0023] (3) In this solution, multiple heat-conducting wires made of metal aluminum are fixedly connected to the bottom of the solid hemisphere and buried in the expanding agent, which can improve the heat-conducting effect of the solid hemisphere and enhance the reaction rate and effect of the expanding agent.

[0024] (4) In this solution, when the sharp cone continuously descends driven by the protection pad, its bottom end will successively pierce through the hollow hemisphere and the isolation layer. At this time, the compressed state of multiple spring wires will change to a straightened state due to the rupture of the hollow hemisphere, and then will push the diameter of the rupture of the hollow hemisphere to become larger, so that the contact area between the self-heating material and the air increases, accelerating the efficiency of the heat generation reaction. By arranging a sponge rod in the cavity of the sharp cone, when the sharp cone pierces through the isolation layer, the green fluorescent agent in the isolation layer can be absorbed by the sponge rod and transmitted to the sponge block, and finally, through the sponge block, it can prompt the user about the integrity of the hollow hemisphere.

[0025] (5) Through the connection between the color display sleeve and the card slot in this solution, the strength of the bottom of the T-shaped tube can be improved. At the same time, through the red fluorescent dye, when the bottom of the T-shaped tube is overly bent and the color display sleeve ruptures, the red fluorescent dye will flow out at this time, which can prompt the maintenance personnel to replace and repair in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is a schematic structural diagram of the T-shaped tube and the card slot in the present invention;

[0028] Figure 3 For the present invention Figure 2 is an enlarged schematic structural diagram of area A in the present invention;

[0029] Figure 4 is a schematic structural diagram of the reaction ball in the present invention;

[0030] Figure 5 is a schematic cross-sectional view of one end of the T-shaped tube in the present invention;

[0031] Figure 6 For the present invention Figure 5 is an enlarged schematic structural diagram of area B in the present invention.

[0032] Explanation of the reference numerals in the drawings:

[0033] 1. Tarpaulin; 2. Bottom plate; 3. T-shaped tube; 4. T-shaped frame; 5. Reinforcing strip; 6. Reinforcing groove; 7. Color display sleeve; 8. Sharp cone; 9. Card slot; 10. Reaction box; 11. Protective layer; 12. Heat-conducting wire; 13. Reaction ball; 14. Solid hemisphere; 15. Hollow hemisphere; 16. Spring wire; 17. Isolation layer; 18. Sponge block; 19. Protection pad; 20. Air inlet hole. DETAILED DESCRIPTION OF THE INVENTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Embodiment 1:

[0038] Please refer to Figures 1-6 , a T-shaped greenhouse pipe and an agricultural greenhouse using the greenhouse pipe, including a T-shaped pipe 3. The cross-sectional shape of the orifice of the T-shaped pipe 3 is T-shaped, and both ends are arc surfaces with different sizes. The corresponding diameters of the arc surfaces are 30 mm and 20 mm respectively, and the maximum distance between the two ends of the arc is 60 - 80 mm. The wall thickness of the T-shaped pipe 3 is 2.5 mm - 3.5 mm. With the above data and the T-shaped orifice with a larger upper part and a smaller lower part, the overall support strength of the T-shaped pipe 3 can be improved, the bending of the T-shaped pipe 3 is facilitated, and the support effect of the T-shaped pipe 3 can be better improved.

[0039] A card slot 9 is provided at the top of the bending center of the T-shaped pipe 3, and a reaction box 10 is clamped in the card slot 9. A protective pad 19 is provided directly above the card slot 9, and the protective pad 19 is fixedly connected to the top of the T-shaped pipe 3. A protective layer 11 is fixedly connected to the bottom of the inner wall of the reaction box 10, and an expanding agent is filled between the protective layer 11 and the inner wall of the reaction box 10. A reaction ball 13 is fixedly connected through the top of the protective layer 11. A sharp cone 8 is provided directly above the reaction ball 13, and the top end of the sharp cone 8 is fixedly connected through the protective pad 19. The reaction ball 13 is divided into a solid hemisphere 14 and a hollow hemisphere 15, and the solid hemisphere 14 and the hollow hemisphere 15 are adhesively connected to each other. A self-heating material is filled between the solid hemisphere 14 and the hollow hemisphere 15. A card slot 9 is opened at the top of the T-shaped pipe 3, and the reaction box 10 is fixed in the card slot 9. A protective layer 11 is provided in the reaction box 10, and an expanding agent is filled between the protective layer 11 and the reaction box 10. When the snow on the top of the T-shaped pipe 3 is too heavy, the protective pad 19 is depressed downward, and the protective pad 19 is driven to move downward, so that the sharp cone 8 pierces the solid hemisphere 14, so that the self-heating material in the solid hemisphere 14 reacts with the air, releases heat. After the heat is quickly absorbed by the solid hemisphere 14, it is quickly transferred to the expanding agent between the protective layer 11 and the reaction box 10. Finally, the expanding agent in the reaction ball 13 reacts, absorbs heat and expands, and finally pushes the protective pad 19 to bulge upward again, and cooperates with the heat in the card slot 9 to melt part of the snow, so as to push away the too heavy snow on the top of the pipe body, reduce the pressure on the top of the T-shaped pipe 3, and improve the support effect and service life of the pipe body.

[0040] A T-shaped frame 4 is fixedly connected to the inner wall of the T-shaped pipe 3. A reinforcing strip 5 is fixedly connected to the bottom end of the T-shaped frame 4, and the reinforcing strip 5 is fixedly connected to the inner wall of the T-shaped pipe 3. By arranging the T-shaped frame 4 in the T-shaped pipe 3, the strength of the pipe body of the T-shaped pipe 3 during bending can be improved through the shape of the T-shaped frame 4, and it can be achieved to avoid the T-shaped pipe 3 from breaking during bending and support. By fixedly connecting the T-shaped frame 4 and the reinforcing strip 5, the strength of the bottom of the pipe body can be improved, and the support effect of the bottom of the pipe body can be enhanced.

[0041] The material of the solid hemisphere 14 is metallic copper, and the materials of the hollow hemisphere 15 and the protective layer 11 are both elastic waterproof membranes. The self-heating material is reduced iron powder, and the material of the expanding agent is ammonium bicarbonate. Through the good thermal conductivity of the metallic copper material itself, the heat released by the self-heating material can be quickly conducted into the expanding agent to improve the reaction efficiency. Through the elastic waterproof membrane, it can be achieved to avoid the self-heating material from reacting prematurely when encountering water and causing failure. At the same time, when the sharp cone 8 descends, it can be quickly pierced to expose the internal self-heating material to the air and accelerate the efficiency of the heat generation reaction.

[0042] A plurality of heat conducting wires 12 are fixedly connected to the bottom of the solid hemisphere 14, and the heat conducting wires 12 are made of aluminum metal. The heat conducting wires 12 are buried in the expander. By fixedly connecting the plurality of heat conducting wires 12 made of aluminum metal to the bottom of the solid hemisphere 14 and burying them in the expander, the heat conduction effect of the solid hemisphere 14 can be improved, and the reaction rate and effect of the expander can be enhanced.

[0043] At the top of the inner wall of the hollow hemisphere 15, an insulating layer 17 is fixedly connected. A green fluorescent dye is filled between the insulating layer 17 and the hollow hemisphere 15. A plurality of spring wires 16 are fixedly connected to the outer wall of the insulating layer 17. One end of the plurality of spring wires 16 away from the insulating layer 17 is fixedly connected to the inner wall of the hollow hemisphere 15, and the spring wires 16 are in a compressed state. When the sharp cone 8 continuously descends under the drive of the protection pad 19, its bottom end will successively pierce through the hollow hemisphere 15 and the insulating layer 17. At this time, the compressed state of the plurality of spring wires 16 will change to a straight state due to the rupture of the hollow hemisphere 15, and then will push the diameter of the rupture of the hollow hemisphere 15 to become larger, so that the contact area between the self-heating material and the air is increased, and the efficiency of the heat generation reaction is accelerated.

[0044] A cavity is provided in the sharp cone 8, and a sponge rod is filled in the cavity. The top end of the sponge rod is fixedly connected to a sponge block 18, and the sponge block 18 is fixedly connected to the upper surface of the protection pad 19. By arranging the sponge rod in the cavity of the sharp cone 8, when the sharp cone 8 pierces through the insulating layer 17, the green fluorescent agent in the insulating layer 17 can be absorbed by the sponge rod and transmitted to the sponge block 18, and finally the integrity of the hollow hemisphere 15 can be prompted to the user through the sponge block 18.

[0045] The protection pad 19 is made of a high-temperature resistant elastic material. A plurality of air inlet holes 20 for air to enter the card slot 9 are provided on the protection pad 19. Due to the characteristics of the high-temperature resistant elastic material, when the weight of the snow is too heavy, the protection pad 19 will sink downward, and it is convenient for high temperature to damage the protection pad 19. And a plurality of air inlet holes 20 for air to enter the card slot 9 are provided on the protection pad 19, which can facilitate the air to enter and further react with the self-heating material, promoting the reaction effect.

[0046] At the bottom of the bending center of the T-shaped tube 3, a strengthening groove 6 is provided. A color display sleeve 7 is fixedly connected to the inner wall of the strengthening groove 6. The color display sleeve 7 is made of stainless steel, and a red fluorescent dye is filled in the tube. Through the connection between the color display sleeve 7 and the card slot 9, the strength of the bottom of the T-shaped tube 3 can be improved. At the same time, through the red fluorescent dye, when the bottom of the T-shaped tube 3 is bent excessively, resulting in the rupture of the color display sleeve 7, at this time the red fluorescent dye flows out, which can prompt the maintenance personnel to replace and repair in time.

[0047] There are multiple groups of T-shaped tubes 3, and both ends of the multiple groups of T-shaped tubes 3 are fixedly connected with bottom plates 2. The bottom plates 2 are made of metal steel and are coated with anti-rust paint on the surface. A large tarpaulin 1 is commonly installed on the outer arc contours of the multiple groups of T-shaped tubes 3. Both sides of the large tarpaulin 1 are respectively clamped with the two bottom plates 2. By fixedly connecting both ends of the multiple groups of T-shaped tubes 3 with the bottom plates 2 and clamping both sides of the large tarpaulin 1 with the two bottom plates 2 respectively, it is convenient to install and fix the multiple groups of T-shaped tubes 3, improve the stability of the T-shaped tubes 3, and at the same time improve the stability of the large tarpaulin 1 after installation, and finally enhance the stability of the agricultural greenhouse.

[0048] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its improved concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A T-shaped greenhouse pipe, characterized in that: It includes a T-shaped tube (3). The cross-sectional shape of the orifice of the T-shaped tube (3) is T-shaped, and both ends are arc-shaped surfaces with different sizes. The corresponding diameters of the arc-shaped surfaces are 30 mm and 20 mm respectively, and the maximum distance between the two ends of the arc is 60 - 80 mm. The wall thickness of the T-shaped tube (3) is 2.5 mm - 3.5 mm. A card slot (9) is opened at the top of the bending center of the T-shaped tube (3), and a reaction box (10) is clamped in the card slot (9). A protective pad (19) is provided directly above the card slot (9), and the protective pad (19) is fixedly connected to the top of the T-shaped tube (3). A protective layer (11) is fixedly connected to the bottom of the inner wall of the reaction box (10), and an expanding agent is filled between the protective layer (11) and the inner wall of the reaction box (10). A reaction ball (13) is fixedly connected through the top of the protective layer (11). A sharp cone (8) is provided directly above the reaction ball (13), and the top end of the sharp cone (8) is fixedly connected through the protective pad (19). The reaction ball (13) is divided into a solid hemisphere (14) and a hollow hemisphere (15), and the solid hemisphere (14) and the hollow hemisphere (15) are adhesively connected to each other. A self-heating material is filled between the solid hemisphere (14) and the hollow hemisphere (15). An insulating layer (17) is fixedly connected to the top of the inner wall of the hollow hemisphere (15), and a green fluorescent dye is filled between the insulating layer (17) and the hollow hemisphere (15). A plurality of spring wires (16) are fixedly connected to the outer wall of the insulating layer (17). One end of each of the plurality of spring wires (16) away from the insulating layer (17) is fixedly connected to the inner wall of the hollow hemisphere (15), and the spring wires (16) are in a compressed state. A strengthening groove (6) is opened at the bottom of the bending center of the T-shaped tube (3), and a color-developing sleeve (7) is fixedly connected to the inner wall of the strengthening groove (6). The color-developing sleeve (7) is made of stainless steel, and a red fluorescent dye is filled in the tube.

2. The T-shaped greenhouse pipe according to claim 1, characterized in that: A T-shaped frame (4) is fixedly connected to the inner wall of the T-shaped tube (3). A strengthening bar (5) is fixedly connected to the bottom end of the T-shaped frame (4), and the strengthening bar (5) is fixedly connected to the inner wall of the T-shaped tube (3).

3. A T-shaped greenhouse pipe according to claim 1, characterized in that: The material of the solid hemisphere (14) is metallic copper. The materials of the hollow hemisphere (15) and the protective layer (11) are both elastic waterproof membranes. The self-heating material is reduced iron powder, and the material of the expanding agent is ammonium bicarbonate.

4. A T-shaped greenhouse pipe according to claim 1, characterized in that: A plurality of heat-conducting wires (12) are fixedly connected to the bottom of the solid hemisphere (14), and the material of the heat-conducting wires (12) is metallic aluminum. The heat-conducting wires (12) are buried in the expanding agent.

5. A T-shaped greenhouse pipe according to claim 1, characterized in that: A cavity is opened in the sharp cone (8), and a sponge rod is filled in the cavity. The top end of the sponge rod is fixedly connected to a sponge block (18), and the sponge block (18) is fixedly connected to the upper surface of the protective pad (19).

6. A T-shaped greenhouse pipe according to claim 1, characterized in that: The protective pad (19) is made of a high-temperature resistant elastic material, and a plurality of air inlet holes (20) for air to enter the card slot (9) are provided on the protective pad (19).

7. An agricultural greenhouse, characterized in that: Including a T-shaped greenhouse pipe according to any one of claims 1-6, there are multiple groups of the T-shaped pipes (3), and both ends of the multiple groups of T-shaped pipes (3) are fixedly connected with a bottom plate (2). The bottom plate (2) is made of metal steel and its surface is coated with anti-rust paint. A large tarpaulin (1) is commonly installed on the outer arc-shaped contour of the multiple groups of T-shaped pipes (3), and both sides of the large tarpaulin (1) are respectively clamped with the two bottom plates (2).

Images