Fabricated roof

Abstract

The invention relates to the field of buildings, in particular to an assembly type roof which comprises a top seat and a heat dissipation device, the heat dissipation device comprises a first reciprocating screw rod, a heat dissipation piston, a first one-way valve and a second one-way valve, a water storage cavity is formed in the surface of the top seat, a heat dissipation cavity allowing the first reciprocating screw rod to rotate is formed in the top seat, and the heat dissipation piston is in threaded connection to the outer wall of the first reciprocating screw rod; a water inlet hole is formed in the inner wall of the water storage cavity and communicates with the heat dissipation cavity, a first one-way valve is connected to the inner wall of the water inlet hole, a water outlet hole is formed in the inner wall of the heat dissipation cavity and communicates with the water storage cavity, and a second one-way valve is connected to the inner wall of the water outlet hole and allows water in the water outlet hole to enter the water storage cavity. Through the arrangement of the first reciprocating lead screw, the heat dissipation piston, the first one-way valve and the second one-way valve, water makes full contact with the inner wall of the heat dissipation cavity and conducts heat exchange, cooling of the top base is achieved, water in the water storage cavity flows back and forth in the heat dissipation cavity, cooling of the top base is achieved, waste of water resources is reduced, and therefore the concept of environmental protection is embodied.

Description

Technical Field

[0001] The present application relates to the field of construction, and in particular to an assembled roof. Background Art

[0002] Prefabricated roof refers to a roof structure that is assembled on site using prefabricated components in a factory. This structural form makes full use of the advantages of industrialized production and improves construction efficiency and quality.

[0003] Prefabricated roofs usually use reinforced concrete structures, and the insulation of the house is achieved through the insulation layer in the reinforced concrete structure. However, the prefabricated roof cannot dissipate the radiant heat from the sun in time, causing the temperature inside the house to rise quickly, greatly reducing the living comfort of the house. Summary of the invention

[0004] In order to improve the heat dissipation problem of the assembled roof, the present application provides an assembled roof.

[0005] The present application provides an assembled roof, which adopts the following technical solution: A prefabricated roof comprises a top seat and a heat dissipation device, wherein the heat dissipation device comprises a reciprocating screw rod, a heat dissipation piston, a one-way valve and a two-way valve. A water storage cavity is provided on the surface of the top seat, a heat dissipation cavity for the rotation of the reciprocating screw rod is provided in the top seat, the heat dissipation piston is threadedly connected to the outer wall of the reciprocating screw rod, the heat dissipation piston slides on the inner wall of the heat dissipation cavity along the axis of the reciprocating screw rod, a water inlet hole is provided on the inner wall of the water storage cavity, the water inlet hole is connected to the heat dissipation cavity, the one-way valve is connected to the inner wall of the water inlet hole, the one-way valve supplies water in the water inlet hole to enter the heat dissipation cavity, a water outlet hole is provided on the inner wall of the heat dissipation cavity, the water outlet hole is connected to the water storage cavity, the two-way valve is connected to the inner wall of the water outlet hole, and the two-way valve supplies water in the water outlet hole to enter the water storage cavity.

[0006] By adopting the above technical scheme, rainwater is accumulated in the water storage chamber during rainfall, so that water resources are collected. When the solar radiation heat is transferred to the top seat, the temperature of the top seat rises, and the reciprocating screw rotates in the heat dissipation chamber, driving the heat dissipation piston to slide on the inner wall of the heat dissipation chamber along the axis of the reciprocating screw. When the heat dissipation piston slides in the direction away from the water inlet hole, the air pressure in the heat dissipation chamber decreases, and the water in the water storage chamber passes through the one-way valve and the water inlet hole in turn and enters the heat dissipation chamber. The water is in full contact with the inner wall of the heat dissipation chamber and performs heat exchange, so as to cool the top seat. When the heat dissipation piston slides in the direction close to the water inlet hole, the air pressure in the heat dissipation chamber increases, driving the water in the heat dissipation chamber to pass through the one-way valve and the water outlet hole in turn and enter the water storage chamber. The water in the water storage chamber is in full contact with each other and performs heat exchange, so as to cool the water in the water storage chamber. The water in the water storage chamber is in full contact with each other and performs heat exchange, so as to cool the water in the water storage chamber. The water in the water storage chamber is used to flow back and forth in the heat dissipation chamber to cool the top seat, thereby reducing the waste of water resources and reflecting the concept of environmental protection.

[0007] Optionally, the heat dissipation device also includes a reversing component, which includes a one-way valve three, a reversing gear, a rack one, a rack two and a thermal expansion and contraction strip. A spray hole is opened on the surface of the top seat, and the spray hole is connected to the heat dissipation cavity. The one-way valve three is connected to the inner wall of the spray hole. The one-way valve three supplies water in the heat dissipation cavity to be sprayed out from the spray hole. The reversing gear is rotatably connected to the inner wall of the heat dissipation cavity. The axis of the reversing gear and the axis of the reciprocating screw rod one are perpendicular to each other. One end of the thermal expansion and contraction strip is connected to the inner wall of the heat dissipation cavity. The other end of the thermal expansion and contraction strip is connected to the inner wall of the heat dissipation cavity. One end is connected to the surface of rack one, the rack one meshes with the reversing gear, the rack two is slidably connected to the inner wall of the heat dissipation cavity, the sliding direction of the rack two and the sliding direction of the rack one are perpendicular to each other, the rack two closes the spray hole, and the rack two meshes with the reversing gear. When the thermal expansion and contraction strip heats up and expands, it drives the rack one to slide in the direction close to the water outlet hole and closes the water outlet hole. The reversing gear rotates, driving the rack two to slide in the direction away from the spray hole, and the sealing effect of the rack two on the spray hole disappears.

[0008] By adopting the above technical solution, the surface of rack 2 is pressed against the inner wall of the heat dissipation cavity and separates the spray hole and the heat dissipation cavity. The water in the heat dissipation cavity passes through the one-way valve 2 and the water outlet hole stably and flows back to the water storage cavity in sequence. When the water temperature in the heat dissipation cavity rises, the water in the heat dissipation cavity transfers the heat energy to the thermal expansion and contraction strip. The thermal expansion and contraction strip heats up and expands. The thermal expansion and contraction strip drives rack 1 to slide along the inner wall of the heat dissipation cavity toward the water outlet hole. The surface of rack 1 is pressed against the inner wall of the heat dissipation cavity and separates the water outlet hole and the heat dissipation cavity. At the same time, rack 1 meshes with the inner wall of the heat dissipation cavity. The reversing gear is engaged, driving the reversing gear to rotate, driving the rack 2 to slide along the inner wall of the heat dissipation chamber in the direction away from the spray hole, and the sealing effect of the rack 2 on the spray hole disappears. When the heat dissipation piston slides along the reciprocating screw 1 in the direction close to the water outlet, the air pressure in the heat dissipation chamber increases, driving the water in the heat dissipation chamber to pass through the one-way valve 3 and the spray hole in turn and flow to the surface of the top seat. When the water on the surface of the top seat evaporates, it absorbs the heat energy of the surface of the top seat, further realizing the cooling of the top seat, thereby improving the cooling efficiency of the assembled roof.

[0009] Optionally, the reversing assembly further comprises a spray gun, which is connected to the surface of the top seat, wherein a water inlet end of the spray gun is connected to a spray hole, and a water outlet end of the spray gun faces the surface of the top seat.

[0010] By adopting the above technical solution, when the sealing effect of the rack two on the spray holes disappears, the water in the heat dissipation cavity is sprayed onto the surface of the top seat through the one-way valve three, the spray holes, the water inlet end of the spray gun and the water outlet end of the spray gun in sequence, thereby increasing the spray area of ​​the water on the surface of the top seat, so that the water can absorb the heat energy of the surface of the top seat when evaporating, thereby improving the cooling efficiency of the top seat.

[0011] Optionally, the heat dissipation device also includes a power component, which includes a power motor, a thermal expansion and contraction plate and a power key, one end of the thermal expansion and contraction plate is connected to the inner wall of the heat dissipation cavity, and the other end of the thermal expansion and contraction plate is connected to the bottom of the power motor, the motor axis of the power motor coincides with the axis of the reciprocating screw, the power key is connected to the end of the motor shaft of the power motor, and an end surface of the reciprocating screw is provided with a groove for the power key to be embedded. When the thermal expansion and contraction plate heats up and expands, it drives the power motor to slide in a direction close to the reciprocating screw, and the power key is embedded in the groove to form a limit.

[0012] By adopting the above technical scheme, when the top seat is heated up by the heat radiation from the sun, the top seat transfers part of the heat energy to the thermal expansion and contraction plate. The thermal expansion and contraction plate heats up and expands and drives the power motor to slide in the direction close to the reciprocating screw rod one. The power key is embedded in the groove, and the circumferential outer wall of the power key presses against the inner wall of the groove to form a limit, thereby realizing the installation of the power motor and the reciprocating screw rod one. The power motor runs and drives the reciprocating screw rod one to rotate.

[0013] Optionally, the power assembly further includes a contact switch, which is connected to the inner wall of the embedding groove and is electrically connected to the power motor. When the power key is embedded in the embedding groove, the contact switch abuts against the power key and is turned on, and the power motor is energized and runs.

[0014] By adopting the above technical scheme, when the thermal expansion and contraction plate heats up and expands and drives the power motor to slide along the inner wall of the heat dissipation cavity toward the direction close to the reciprocating screw rod, the power key is embedded in the groove, the contact switch abuts the power key and is turned on, the power motor is energized and runs, realizing directional starting of the power motor, reducing energy loss, and thus embodying the concept of energy saving.

[0015] Optionally, the heat dissipation piston separates the heat dissipation cavity into heat dissipation section one and heat dissipation section two, the water inlet hole, water outlet hole and spray hole are all connected to the inner cavity of heat dissipation section one, the heat dissipation device also includes an air guide component, the air guide component includes an air guide fan, a one-way valve four and a one-way valve five, the top surface of the top seat is provided with an air inlet hole, the air inlet hole is connected to the inner cavity of heat dissipation section two, the one-way valve four is connected to the inner wall of the air inlet hole, the one-way valve four supplies outside air to enter the air inlet hole, the top surface of the top seat is provided with an air outlet hole, the air outlet hole is connected to the inner cavity of heat dissipation section two, the one-way valve five is connected to the inner wall of the air outlet hole, the one-way valve five supplies the air in the heat dissipation section two to enter the air outlet hole, the air guide fan is rotatably connected to the top surface of the top seat, and the blades of the air guide fan are facing the air outlet hole.

[0016] By adopting the above technical scheme, when the heat dissipation piston slides along the axis of the reciprocating screw rod one toward the heat dissipation section two, the air pressure in the heat dissipation section two increases, driving the air in the heat dissipation section two to pass through the one-way valve five and the exhaust hole in turn and be discharged to the outside world, thereby realizing ventilation in the heat dissipation section two; when the heat dissipation piston slides along the axis of the reciprocating screw rod one toward the direction away from the heat dissipation section two, the air pressure in the heat dissipation section two decreases, driving the outside air to pass through the air inlet hole and the one-way valve four in turn and enter the heat dissipation section two, the air is in full contact with the air in the heat dissipation section two and heat exchange is performed, thereby realizing cooling of the inner wall of the heat dissipation section two, and at the same time, the air entering the air inlet hole impacts the blades of the heat dissipation fan, and the heat dissipation fan rotates, driving the air flow on the surface of the top seat, driving the outside air to fully contact with the surface of the top seat and heat exchange is performed, thereby improving the cooling efficiency of the top seat.

[0017] Optionally, the top seat is connected to a cleaning assembly, which includes a reciprocating screw rod and a cleaning brush. The reciprocating screw rod is movably connected to the surface of the top seat, and the cleaning brush is threadedly connected to the outer wall of the reciprocating screw rod. The cleaning brush slides on the surface of the top seat along the axis of the reciprocating screw rod, and the cleaning end of the cleaning brush presses against the surface of the top seat and cleans impurities on the surface of the top seat.

[0018] By adopting the above technical solution, the cleaning end of the cleaning brush is pressed against the surface of the top seat. When the reciprocating screw rod is driven to rotate, the cleaning brush is driven to slide on the surface of the top seat along the axis of the reciprocating screw rod. The cleaning end of the cleaning brush cleans away impurities on the surface of the top seat, thereby achieving directional cleaning of the surface of the top seat. There is no need for the user to climb onto the top seat for cleaning, thereby improving the convenience of using the house.

[0019] Optionally, the cleaning assembly also includes at least two synchronous wheels and a synchronous belt used in conjunction with the synchronous wheels, the rotating axis of the air-guiding fan and the two axes of the reciprocating screw are parallel to each other, one of the synchronous wheels is coaxially connected to the two ends of the reciprocating screw, and the other synchronous wheel is coaxially connected to the rotating shaft of the air-guiding fan, and the synchronous belt is tensioned to connect the two synchronous wheels.

[0020] By adopting the above technical solution, when air impacts the blades of the air guide fan and drives the air guide fan to rotate, the synchronous belt is tensioned to connect the two synchronous wheels, driving the reciprocating screw rod 2 to rotate around its own axis, driving the cleaning brush to slide on the surface of the top seat along the axis of the reciprocating screw rod 2, and no external power device is required to drive the reciprocating screw rod 2 to rotate, thereby reducing energy loss and reflecting the concept of energy saving.

[0021] Optionally, a filter is connected to the inner wall of the water storage chamber, and the filter can filter impurities in rainwater. A brush is slidably connected to the surface of the filter, and the cleaning end of the brush presses against the surface of the filter and scrapes off impurities on the surface of the filter.

[0022] By adopting the above technical solution, rainwater enters the water storage chamber after being filtered through the filter, making it difficult for impurities to block the water inlet hole, thereby ensuring the stability of water supply in the heat dissipation chamber. At the same time, the cleaning end of the brush presses against the surface of the filter and scrapes off impurities on the surface of the filter, thereby achieving directional cleaning of the surface of the filter.

[0023] Optionally, a transmission assembly is connected between the plate brush and the cleaning brush, and the transmission assembly includes magnetic block 1 and magnetic block 2. The sliding direction of the cleaning brush and the sliding direction of the plate brush are parallel to each other. The magnetic block 1 is connected to the end surface of the cleaning brush close to the plate brush, and the magnetic block 2 is connected to the end surface of the plate brush close to the cleaning brush. The magnetic block 1 and the magnetic block 2 attract each other with opposite poles. When the cleaning brush slides along the second axis of the reciprocating screw rod, the plate brush is driven to slide along the surface of the filter.

[0024] By adopting the above technical solution, magnetic block 2 and magnetic block 1 attract each other with opposite poles. When the cleaning brush slides along the second axis of the reciprocating screw rod, the plate brush is driven to slide along the surface of the filter screen. No external power device is required to drive the plate brush to slide, thus reducing energy loss and embodying the concept of energy saving.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The arrangement of the reciprocating screw rod 1, the heat dissipation piston, the one-way valve 1 and the two-way valve allows the water to fully contact the inner wall of the heat dissipation chamber and perform heat exchange, thereby cooling the top seat. The water in the water storage chamber flows back and forth in the heat dissipation chamber to cool the top seat, thereby reducing the waste of water resources and reflecting the concept of environmental protection. 2. The setting of the one-way valve 3, the reversing gear, the rack 1, the rack 2 and the thermal expansion and contraction strips allows the water on the top seat surface to absorb the heat energy on the top seat surface when evaporating, further realizing the cooling of the top seat, thereby improving the cooling efficiency of the assembled roof; 3. The setting of the spray gun increases the spraying area of ​​water on the surface of the top seat, so that the water can absorb the heat energy on the surface of the top seat when evaporating, thereby improving the cooling efficiency of the top seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0027] Figure 2 It is a partial cross-sectional view in an embodiment of the present application, mainly showing the heat dissipation device.

[0028] Figure 3 It is a partial cross-sectional view in an embodiment of the present application, mainly showing the reversing component.

[0029] Description of reference numerals: 1. top seat; 11. connection part; 111. heat dissipation cavity; 1111. heat dissipation section 1; 1112. heat dissipation section 2; 112. water outlet; 113. spray hole; 114. air inlet; 115. air outlet; 12. rain shield; 121. water storage cavity; 122. water inlet; 2. heat dissipation device; 21. reciprocating screw rod 1; 211. embedded groove; 22. heat dissipation piston; 23. one-way valve 1; 24. one-way valve 2; 25. reversing assembly; 251. one-way valve 3; 252. reversing gear; 253 , rack one; 254, rack two; 255, thermal expansion and contraction strip; 256, spray gun; 26, power assembly; 261, power motor; 262, thermal expansion and contraction plate; 263, power key; 264, contact switch; 27, air guide assembly; 271, air guide fan; 272, one-way valve four; 273, one-way valve five; 3, cleaning assembly; 31, reciprocating screw rod two; 32, cleaning brush; 33, synchronous wheel; 34, synchronous belt; 4, filter screen; 5, plate brush; 6, transmission assembly; 61, magnetic block one; 62, magnetic block two. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The present application embodiment discloses an assembled roof. Figure 1 and Figure 2 The assembled roof includes a top seat 1 and a heat dissipation device 2. The heat dissipation device 2 is installed on the top seat 1. The heat dissipation device 2 can cool the top seat 1, so that the top seat 1 is not easily heated up by solar radiation heat, and the temperature in the house is not easily heated up, thereby improving the living comfort of the house.

[0032] Reference Figure 2 and Figure 3 The heat dissipation device 2 includes a reciprocating screw rod 21, a heat dissipation piston 22, a one-way valve 23, a one-way valve 24, a reversing assembly 25, a power assembly 26 and an air guide assembly 27. The top seat 1 includes a connecting portion 11 and two rain shielding portions 12. The connecting portion 11 is for housing installation. The two rain shielding portions 12 are fixed one by one at both ends of the length direction of the connecting portion 11. A water storage chamber 121 is provided on the top surface of the rain shielding portion 12. A heat dissipation chamber 111 for the reciprocating screw rod 21 to rotate is provided in the connecting portion 11. The material of the heat dissipation piston 22 can be rubber or silicone. In the embodiment of the present application, the material of the heat dissipation piston 22 is rubber with a certain deformation ability. The heat dissipation piston 22 is threadedly connected to the outer wall of the reciprocating screw rod 21. The heat dissipation piston 22 slides on the inner wall of the heat dissipation chamber 111 along the axis of the reciprocating screw rod 21. The heat dissipation piston 22 separates the heat dissipation chamber 111 into a heat dissipation section 1111 and a heat dissipation section 2112. The heat dissipation section 1111 is close to the water storage chamber 121.

[0033] Reference Figure 2A water inlet hole 122 is provided on the inner wall of the water storage chamber 121 near the heat dissipation section 1111. The water inlet hole 122 penetrates the inner wall of the water storage chamber 121 along its own axis and is connected to the heat dissipation section 1111. A one-way valve 23 is installed on the inner wall of the water inlet hole 122. The one-way valve 23 supplies water in the water inlet hole 122 to enter the heat dissipation section 1111. A water outlet hole 112 is provided on the inner wall of the heat dissipation section 1111. The axis of the water outlet hole 112 and the axis of the water inlet hole 122 are parallel to each other. The water outlet hole 112 penetrates the inner wall of the heat dissipation section 1111 along its own axis and is connected to the water storage chamber 121. A one-way valve 24 is installed on the inner wall of the water outlet hole 112. The one-way valve 24 supplies water in the water outlet hole 112 to enter the water storage chamber 121. The water inlet hole 122 and the water outlet hole 112 are located on both sides of the length direction of the water storage chamber 121.

[0034] Reference Figure 2 When the heat dissipation piston 22 slides along the axis of the reciprocating screw rod 21 toward the direction close to the heat dissipation section 1112, the air pressure in the heat dissipation section 1111 decreases, and the water in the water storage chamber 121 passes through the one-way valve 23 and the water inlet hole 122 in turn and enters the heat dissipation section 1111. The water fully contacts and exchanges heat with the inner wall of the heat dissipation section 1111, thereby cooling the inner wall of the heat dissipation section 1111. When the heat dissipation piston 22 slides along the axis of the reciprocating screw rod 21 toward the direction close to the heat dissipation section 1111, the air pressure in the heat dissipation section 1111 increases, and the water in the heat dissipation section 1111 passes through the one-way valve 24 and the water outlet hole 112 in turn and enters the water storage chamber 121. The water in the water storage chamber 121 fully contacts and exchanges heat with the inner wall of the heat dissipation section 1111, thereby cooling the water discharged from the heat dissipation section 1111.

[0035] Reference Figure 2 and Figure 3 The reversing assembly 25 can control the opening and closing of the water outlet 112. The reversing assembly 25 includes a one-way valve three 251, a reversing gear 252, a rack one 253, a rack two 254, a thermal expansion and contraction strip 255 and a spray gun 256. A spray hole 113 is opened on the top surface of the connecting portion 11. The spray hole 113 passes through the outer wall of the connecting portion 11 along its own axis and is connected to the inner cavity of the heat dissipation section one 1111. The one-way valve three 251 is installed on the inner wall of the spray hole 113. The one-way valve three 251 allows water in the heat dissipation section one 1111 to enter the spray hole 113. The spray gun 256 is installed on the top surface of the connecting portion 11 by bolts. The water inlet end of the spray gun 256 is connected to the spray hole 113, and the water outlet end of the spray gun 256 faces the top surface of the connecting portion 11.

[0036] Reference Figure 2 and Figure 3The reversing gear 252 is rotatably connected to the inner wall of the heat dissipation section 1111. The material of the thermal expansion and contraction strip 255 can be rubber or nylon. In the embodiment of the present application, the material of the thermal expansion and contraction strip 255 is nylon, which has a certain thermal expansion coefficient. One end of the thermal expansion and contraction strip 255 is fixed to the inner wall of the heat dissipation section 1111, and the other end of the thermal expansion and contraction strip 255 is fixed to the surface of the rack 1 253. The thermal expansion and contraction strip 255 is located on the side of the rack 1 253 away from the drain hole. The rack 254 is slidably connected to the inner wall of the heat dissipation section 1111. The sliding direction of the rack 1 253 and the sliding direction of the rack 2 254 are perpendicular to each other. The surface of the rack 2 254 is pressed against the inner wall of the heat dissipation section 1111 and separates the spray hole 113 and the heat dissipation section 1111. The rack 1 253 and the rack 2 254 are both meshed with the reversing gear 252.

[0037] Reference Figure 2 and Figure 3 When the temperature of the water in the heat dissipation section 1111 increases, the water in the heat dissipation section 1111 exchanges heat with the thermal expansion and contraction strip 255, and the thermal expansion and contraction strip 255 expands and drives the rack 1 253 to slide in the direction close to the water outlet 112. The surface of the rack 1 253 presses against the inner wall of the heat dissipation section 1111 and separates the water outlet 112 and the heat dissipation section 1111. At the same time, the rack 1 253 meshes with the reversing gear 252 to drive the reversing gear 252 to rotate, and the rack 2 254 meshes with the reversing gear 252 to drive the rack 254 to slide in the direction away from the spray hole 113. The sealing effect of the rack 254 on the spray hole 113 disappears, and the spray hole 113 is connected to the heat dissipation section 1111. When the heat dissipation piston 22 slides toward the heat dissipation section 1111, the water pressure in the heat dissipation section 1111 increases, and the water in the heat dissipation section 1111 passes through the spray hole 113, the one-way valve 3 251 and the water inlet end of the spray gun 256 in turn and is discharged from the water outlet end of the spray gun 256. The water is sprayed on the surface of the connection part 11. When the water on the surface of the connection part 11 evaporates, it absorbs the heat energy of the connection part 11, thereby cooling the connection part 11 and improving the cooling efficiency of the assembled roof.

[0038] Reference Figure 2The power assembly 26 can drive the reciprocating screw rod 21 to rotate. The power assembly 26 includes a power motor 261, a thermal expansion and contraction plate 262, a power key 263 and a contact switch 264. The material of the thermal expansion and contraction plate 262 can be rubber or nylon. In the embodiment of the present application, the material of the thermal expansion and contraction plate 262 is nylon, which has a certain thermal expansion coefficient. One end of the thermal expansion and contraction plate 262 is fixed to the inner wall of the heat dissipation section 1112, and the other end of the thermal expansion and contraction plate 262 is fixed to the bottom of the power motor 261. The motor axis of the power motor 261 coincides with the axis of the reciprocating screw rod 21. The power key 263 is fixed to the end of the motor shaft of the power motor 261. The surface of the reciprocating screw rod 21 is provided with an embedding groove 211 for the power key 263 to be embedded. The contact switch 264 is installed on the inner wall of the embedding groove 211, and the contact switch 264 is electrically connected to the power motor 261.

[0039] Reference Figure 2 When the connection part 11 is heated up by the heat radiation of sunlight, the connection part 11 transfers the heat energy to the thermal expansion and contraction plate 262. The thermal expansion and contraction plate 262 heats up and expands and drives the power motor 261 to slide in the direction close to the reciprocating screw rod 21. The power key 263 is embedded in the embedding groove 211, and the circumferential outer wall of the power key 263 is pressed against the inner wall of the embedding groove 211 to form a fixation. At the same time, the contact switch 264 abuts against the power key 263 and is turned on. The power motor 261 is energized and runs, driving the reciprocating screw rod 21 to rotate around its own axis on the inner wall of the heat dissipation cavity 111. The power motor 261 does not need to keep running all the time, so the directional start of the power motor 261 is realized, and the energy loss is reduced, thereby reflecting the concept of energy saving.

[0040] Reference Figure 1 and Figure 2 The air guide component 27 can drive the air flow in the heat dissipation section 2 1112. The air guide component 27 includes an air guide fan 271, a one-way valve 4 272 and a one-way valve 5 273. The top surface of the connecting portion 11 is provided with an air inlet hole 114. The axis of the air inlet hole 114 and the axis of the spray hole 113 are parallel to each other. The air inlet hole 114 passes through the outer wall of the connecting portion 11 along its own axis and is connected to the heat dissipation section 2 1112. The one-way valve 4 272 is installed on the inner wall of the air inlet hole 114. The one-way valve 4 272 allows outside air to enter the air inlet hole 114. The top surface of the connecting portion 11 is provided with an air outlet hole 115. The air outlet hole 115 The axis and the axis of the air inlet hole 114 are parallel to each other, the air outlet hole 115 passes through the outer wall of the connecting part 11 along its own axis and is connected to the heat dissipation section 2 1112, the air outlet hole 115 and the air inlet hole 114 are located on both sides of the length direction of the connecting part 11, the number of air guide fans 271 can be one, two or more. In the embodiment of the present application, the number of air guide fans 271 is two, and the two air guide fans 271 are fixed on both sides of the length direction of the connecting part 11 by bolts at intervals, one of the air guide fans 271 has blades facing the air outlet hole 115, and the other air guide fan 271 has blades facing the air inlet hole 114.

[0041] Reference Figure 1 and Figure 2 When the heat dissipation piston 22 slides along the axis of the reciprocating screw rod 1 21 in the direction away from the heat dissipation section 2 1112, the air pressure in the heat dissipation section 2 1112 decreases, and the outside air passes through the one-way valve 4 272 and the air inlet hole 114 in turn and enters the heat dissipation section 2 1112. The air fully contacts the inner wall of the heat dissipation section 2 1112 and performs heat exchange, thereby cooling the inner wall of the heat dissipation section 2 1112. At the same time, when the heat dissipation piston 22 slides along the axis of the reciprocating screw rod 1 21 in the direction close to the heat dissipation section 2 1112, the air pressure in the heat dissipation section 2 1112 increases, and the air in the heat dissipation section 2 1112 passes through the one-way valve 5 273 and the air outlet hole 114 in turn. 15 and discharged to the outside, realize the air flow in the heat dissipation section 2 1112, improve the cooling efficiency of the assembled roof, and make the assembled roof not easy to heat up; at the same time, the air entering the air inlet 114 hits the blades of the air guide fan 271, drives the air guide fan 271 to rotate, and the air guide fan 271 drives the air flow on the surface of the connection part 11, so that the surface of the connection part 11 is fully in contact with the air and heat exchange is carried out, and the air discharged from the air outlet 115 hits the blades of the air guide fan 271, drives the air guide fan 271 to rotate, and the air guide fan 271 drives the air flow on the surface of the connection part 11, further improving the cooling efficiency of the assembled roof.

[0042] Reference Figure 1 and Figure 2 The connection part 11 is equipped with a cleaning assembly 3, which can clean the surface of the connection part 11; the cleaning assembly 3 includes a reciprocating screw rod 2 31, a cleaning brush 32, two synchronous wheels 33 and a synchronous belt 34 used in conjunction with the synchronous wheel 33, the reciprocating screw rod 2 31 is rotatably connected to the top surface of the connection part 11, the axis of the reciprocating screw rod 2 31 and the axis of the air guide fan 271 are parallel to each other, one of the synchronous wheels 33 is coaxially fixed to the end of the reciprocating screw rod 2 31, and the other synchronous wheel 33 is coaxially fixed to the rotating shaft of one of the air guide fans 271, the synchronous belt 34 is tensioned and connected to the two synchronous wheels 33, the cleaning brush 32 is threadedly connected to the outer wall of the reciprocating screw rod 2 31, the cleaning brush 32 slides on the surface of the connection part 11 along the axis of the reciprocating screw rod 2 31, the cleaning section of the cleaning brush 32 is pressed against the surface of the connection part 11 and scrapes off impurities on the surface of the connection part 11, no external power device is required to drive the reciprocating screw rod 2 31 to rotate, thereby reducing energy loss, thereby reflecting the concept of energy saving.

[0043] Reference Figure 1 and Figure 2A filter screen 4 is fixed to the inner wall of the water storage chamber 121. The filter screen 4 can filter impurities in rainwater, so that the water inlet 122 is not easily blocked by impurities, thereby ensuring the recycling of water resources in the heat dissipation section 1111. A brush 5 is slidably connected to the surface of the filter screen 4. The sliding direction of the brush 5 and the sliding direction of the cleaning brush 32 are parallel to each other. The cleaning end of the brush 5 presses against the surface of the filter screen 4 and scrapes off the impurities on the surface of the filter screen 4, thereby realizing directional cleaning of impurities on the surface of the filter screen 4.

[0044] Reference Figure 1 and Figure 2 A transmission assembly 6 is connected between the plate brush 5 and the cleaning brush 32. The transmission assembly 6 can receive the power of the cleaning brush 32 and drive the plate brush 5 to slide. The transmission assembly 6 includes a magnetic block 1 61 and a magnetic block 2 62. In the embodiment of the present application, the materials of the magnetic block 1 61 and the magnetic block 2 62 are both magnets. The magnetic block 1 61 is fixed on the end face of the cleaning brush 32 close to the plate brush 5, and the magnetic block 2 62 is fixed on the end face of the plate brush 5 close to the cleaning brush 32. The magnetic block 1 61 and the magnetic block 2 62 attract each other with opposite poles.

[0045] Reference Figure 1 and Figure 2 When the cleaning brush 32 slides on the surface of the connecting portion 11 along the axis of the reciprocating screw rod 31, the magnetic block 1 61 and the magnetic block 2 62 attract each other with opposite poles, driving the plate brush 5 to slide along the surface of the filter screen 4. The cleaning end of the plate brush 5 scrapes off the impurities on the surface of the filter screen 4, thereby cleaning the impurities on the surface of the filter screen 4. There is no need for an external power device to drive the plate brush 5 to slide, thereby reducing energy loss and reflecting the concept of energy saving.

[0046] The implementation principle of an assembled roof in an embodiment of the present application is as follows: when the connection portion 11 is heated up by the heat radiation of the sun, the connection portion 11 transfers the heat energy to the thermal expansion and contraction plate 262, the thermal expansion and contraction plate 262 heats up and expands and drives the power motor 261 to slide in the direction close to the reciprocating screw rod 21, the power key 263 is embedded in the embedding groove 211, the circumferential outer wall of the power key 263 is pressed against the inner wall of the embedding groove 211 to form a fixation, and at the same time the contact switch 264 abuts against the power key 263 and is turned on, the power motor 261 is energized and runs, driving the reciprocating screw rod 21 to rotate around its own axis on the inner wall of the heat dissipation cavity 111, when the heat dissipation piston 22 slides along the axis of the reciprocating screw rod 21 in the direction close to the heat dissipation section 2 1112, the air pressure in the heat dissipation section 1 1111 decreases, and the storage The water in the water chamber 121 passes through the one-way valve 23 and the water inlet hole 122 in turn and enters the heat dissipation section 1111. The water fully contacts and exchanges heat with the inner wall of the heat dissipation section 1111, thereby cooling the inner wall of the heat dissipation section 1111. When the heat dissipation piston 22 slides along the axis of the reciprocating screw rod 21 toward the heat dissipation section 1111, the air pressure in the heat dissipation section 1111 increases, and the water in the heat dissipation section 1111 passes through the one-way valve 24 and the water outlet hole 112 in turn and enters the water storage chamber 121. The water in the water storage chamber 121 fully contacts and exchanges heat, thereby cooling the water discharged from the heat dissipation section 1111, making the top seat 1 less likely to heat up due to solar radiation heat, and making the house less likely to heat up, thereby improving the living comfort of the house.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. Prefabricated roof, characterized by: The invention comprises a top seat (1) and a heat dissipation device (2), wherein the heat dissipation device (2) comprises a reciprocating screw rod (21), a heat dissipation piston (22), a one-way valve (23) and a two-way valve (24); a water storage chamber (121) is provided on the surface of the top seat (1); a heat dissipation chamber (111) for the reciprocating screw rod (21) to rotate is provided in the top seat (1); the heat dissipation piston (22) is threadedly connected to the outer wall of the reciprocating screw rod (21); the heat dissipation piston (22) slides on the inner wall of the heat dissipation chamber (111) along the axis of the reciprocating screw rod (21); and the inner wall of the water storage chamber (121) A water inlet hole (122) is provided, the water inlet hole (122) is connected to the heat dissipation cavity (111), the one-way valve (23) is connected to the inner wall of the water inlet hole (122), the one-way valve (23) allows water in the water inlet hole (122) to enter the heat dissipation cavity (111), a water outlet hole (112) is provided on the inner wall of the heat dissipation cavity (111), the water outlet hole (112) is connected to the water storage cavity (121), the one-way valve (24) is connected to the inner wall of the water outlet hole (112), the one-way valve (24) allows water in the water outlet hole (112) to enter the water storage cavity (121).

2. The assembled roof according to claim 1, characterized in that: The heat dissipation device (2) further comprises a reversing assembly (25), the reversing assembly (25) comprising a check valve three (251), a reversing gear (252), a rack one (253), a rack two (254) and a thermal expansion and contraction strip (255); a spray hole (113) is provided on the surface of the top seat (1); the spray hole (113) is connected to the heat dissipation cavity (111); the check valve three (251) is connected to the inner wall of the spray hole (113); the check valve three (251) allows water in the heat dissipation cavity (111) to be sprayed out from the spray hole (113); the reversing gear (252) is rotatably connected to the inner wall of the heat dissipation cavity (111); the axis of the reversing gear (252) and the axis of the reciprocating screw rod one (21) are perpendicular to each other; one end of the thermal expansion and contraction strip (255) is connected to the inner wall of the heat dissipation cavity (111); the thermal expansion and contraction strip (255) is connected to the inner wall of the heat dissipation cavity (111); The other end of the rack (255) is connected to the surface of the rack one (253), the rack one (253) meshes with the reversing gear (252), the rack two (254) is slidably connected to the inner wall of the heat dissipation cavity (111), the sliding direction of the rack two (254) and the sliding direction of the rack one (253) are perpendicular to each other, the rack two (254) closes the spray hole (113), and the rack two (254) meshes with the reversing gear (252), when the thermal expansion and contraction bar (255) heats up and expands, it drives the rack one (253) to slide in the direction close to the water outlet hole (112) and closes the water outlet hole (112), the reversing gear (252) rotates, drives the rack two (254) to slide in the direction away from the spray hole (113), and the sealing effect of the rack two (254) on the spray hole (113) disappears.

3. The assembled roof according to claim 2, characterized in that: The reversing assembly (25) further comprises a spray gun (256), wherein the spray gun (256) is connected to the surface of the top seat (1), the water inlet end of the spray gun (256) is connected to the spray hole (113), and the water outlet end of the spray gun (256) faces the surface of the top seat (1).

4. The assembled roof according to claim 1, characterized in that: The heat dissipation device (2) further comprises a power assembly (26), the power assembly (26) comprising a power motor (261), a thermal expansion and contraction plate (262) and a power key (263), one end of the thermal expansion and contraction plate (262) being connected to the inner wall of the heat dissipation cavity (111), the other end of the thermal expansion and contraction plate (262) being connected to the bottom of the power motor (261), the motor axis of the power motor (261) being coincident with the axis of the reciprocating screw rod (21), the power key (263) being connected to the end of the motor shaft of the power motor (261), the end surface of the reciprocating screw rod (21) being provided with an embedding groove (211) for embedding the power key (263), when the thermal expansion and contraction plate (262) is heated and expanded, the power motor (261) is driven to slide in a direction close to the reciprocating screw rod (21), and the power key (263) is embedded in the embedding groove (211) to form a limit.

5. The assembled roof according to claim 4, characterized in that: The power assembly (26) further comprises a contact switch (264), wherein the contact switch (264) is connected to the inner wall of the embedding groove (211), and the contact switch (264) is electrically connected to the power motor (261). When the power key (263) is embedded in the embedding groove (211), the contact switch (264) abuts against the power key (263) and is turned on, and the power motor (261) is energized and operates.

6. The assembled roof according to claim 2, characterized in that: The heat dissipation piston (22) separates the heat dissipation cavity (111) into heat dissipation section one (1111) and heat dissipation section two (1112); the water inlet hole (122), the water outlet hole (112) and the spray hole (113) are all connected to the inner cavity of the heat dissipation section one (1111); the heat dissipation device (2) further comprises an air guide component (27); the air guide component (27) comprises an air guide fan (271), a one-way valve four (272) and a one-way valve five (273); the top surface of the top seat (1) is provided with an air inlet hole (114); the air inlet hole (114) is connected to the inner cavity of the heat dissipation section two (1112); the one-way valve four (272) is connected to the inner wall of the air inlet hole (114), the one-way valve four (272) allows outside air to enter the air inlet hole (114), the top surface of the top seat (1) is provided with an air outlet hole (115), the air outlet hole (115) is connected to the inner cavity of the heat dissipation section two (1112), the one-way valve five (273) is connected to the inner wall of the air outlet hole (115), the one-way valve five (273) allows air in the heat dissipation section two (1112) to enter the air outlet hole (115), the air guide fan (271) is rotatably connected to the top surface of the top seat (1), and the blades of the air guide fan (271) are facing the air outlet hole (115).

7. The assembled roof according to claim 6, characterized in that: The top seat (1) is connected to a cleaning assembly (3), the cleaning assembly (3) comprising a reciprocating screw rod (31) and a cleaning brush (32), the reciprocating screw rod (31) being movably connected to the surface of the top seat (1), the cleaning brush (32) being threadedly connected to the outer wall of the reciprocating screw rod (31), the cleaning brush (32) slidingly moving on the surface of the top seat (1) along the axis of the reciprocating screw rod (31), the cleaning end of the cleaning brush (32) pressing against the surface of the top seat (1) and cleaning impurities on the surface of the top seat (1).

8. The assembled roof according to claim 7, characterized in that: The cleaning assembly (3) further comprises at least two synchronous wheels (33) and a synchronous belt (34) used in combination with the synchronous wheels (33); the rotation axis of the air guide fan (271) and the axis of the second reciprocating screw rod (31) are parallel to each other; one of the synchronous wheels (33) is coaxially connected to the second end of the reciprocating screw rod (31); the other synchronous wheel (33) is coaxially connected to the rotation axis of the air guide fan (271); and the synchronous belt (34) is tensioned to connect the two synchronous wheels (33).

9. The assembled roof according to claim 8, characterized in that: The inner wall of the water storage chamber (121) is connected to a filter screen (4), and the filter screen (4) is capable of filtering impurities in rainwater. The surface of the filter screen (4) is slidably connected to a brush (5), and the cleaning end of the brush (5) is pressed against the surface of the filter screen (4) to scrape off impurities on the surface of the filter screen (4).

10. The assembled roof according to claim 9, characterized in that: A transmission assembly (6) is connected between the plate brush (5) and the cleaning brush (32), and the transmission assembly (6) includes a magnetic block 1 (61) and a magnetic block 2 (62). The sliding direction of the cleaning brush (32) and the sliding direction of the plate brush (5) are parallel to each other. The magnetic block 1 (61) is connected to the end surface of the cleaning brush (32) close to the plate brush (5), and the magnetic block 2 (62) is connected to the end surface of the plate brush (5) close to the cleaning brush (32). The magnetic block 1 (61) and the magnetic block 2 (62) attract each other with opposite poles. When the cleaning brush (32) slides along the axis of the reciprocating screw rod 2 (31), the plate brush (5) is driven to slide along the surface of the filter screen (4).

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