Energy-saving building structure and construction method thereof

Abstract

The invention discloses an energy-saving building structure and a construction method thereof.The energy-saving building structure comprises a base and a house body and further comprises a rainwater backflow power generation mechanism, a rainwater recycling and filtering mechanism and a photovoltaic power generation mechanism, the house body is arranged at the upper end of the base, and the rainwater backflow power generation mechanism is arranged at the top end of the house body; rainwater recycling and filtering mechanisms are arranged on the two sides of the house body. According to the energy-saving building structure and the construction method thereof, by arranging the rainwater backflow power generation mechanism, rainwater flows to a roof and then is collected through a flow collecting pipeline, and the rainwater is supplied into a transfer collecting box through a flow collecting opening and a first conveying pipeline; if the water level in the transfer collecting box is low, rainwater can be stored into the transfer collecting box, after the water amount is sufficient, a turning cover can be pulled through an air bag and a pull rope to open a second conveying pipeline, then it can be guaranteed that water flow has enough impact force on an impeller to enable the impeller to rotate, and therefore a sleeve can be rotated to drive a power generator to complete power generation.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving buildings, and in particular to an energy-saving building structure and a construction method thereof. Background Art

[0002] Energy-saving buildings refer to buildings that adopt a series of technical and management measures during the design, construction and use process to reduce energy consumption, improve energy efficiency and reduce the impact on the environment, and combine renewable energy for energy supply. Renewable energy utilization refers to the use of renewable energy technology to convert renewable energy resources in nature into usable energy to meet the energy needs of buildings and society.

[0003] For example, an energy-saving and earthquake-resistant building structure disclosed in Chinese Patent Publication No. (CN115949269A) records: "It includes a building wall and a positioning sleeve, the front of the building wall is provided with a flip door, and the inner side of the front of the flip door is provided with an engaging groove; the front of the building wall is installed with a positioning sleeve, the left side of the positioning sleeve is installed with a waterproof baffle, the front of the waterproof baffle is installed with a sealing ring, and the front of the waterproof baffle is installed with a plurality of groups of telescopic bolts; the inner side of the engaging groove is installed with a flip fixing piece. The present invention effectively solves the problem that the existing energy-saving and earthquake-resistant building structures cannot prevent external water from entering the building wall through the gaps and affecting people's lives by installing a waterproof baffle and utilizing the waterproof baffle."

[0004] In summary, the device still has the following technical problems: the energy-saving part mentioned in the device is only provided by photovoltaic energy, but some cities have abundant rainfall, resulting in more rainy days than sunny days at some times. This will cause all the rainwater to flow to the ground or into the sewer when it rains, which will lead to excessive energy waste. For this reason, it is necessary to propose an energy-saving building structure and its construction method to provide a new technical solution to solve the technical problems mentioned in the above patent. Summary of the invention

[0005] Based on this, it is necessary to provide an energy-saving building structure and its construction method to address the above-mentioned technical problems. By setting up a rainwater return power generation mechanism, rainwater flows to the roof and is collected through a collecting pipe, and is supplied to the interior of a transfer collection box through a collecting port and a first delivery pipe. If the water level inside the transfer collection box is low, the rainwater will be stored in the interior of the transfer collection box. When the water volume is sufficient, the airbag and pull rope can be used to pull the flap to open the second delivery pipe, thereby ensuring that the water flow has sufficient impact force on the impeller to rotate the impeller, thereby driving the generator to complete power generation by rotating the sleeve.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An energy-saving building structure is applied to rainwater power generation and filtration storage as well as photovoltaic power generation storage.

[0008] The energy-saving building structure specifically includes a base and a building body, and also includes a rainwater return power generation mechanism, a rainwater recovery and filtering mechanism and a photovoltaic power generation mechanism. The upper end of the base is provided with a building body, the top of the building body is provided with a rainwater return power generation mechanism, both sides of the building body are provided with rainwater recovery and filtering mechanisms, and the front of the building body is provided with a photovoltaic power generation mechanism;

[0009] The rainwater return power generation mechanism includes a guide plate, a collecting pipe, a collecting port, a first conveying pipe, a transfer collection box, a water collection assembly overflow opening and closing assembly and a power generation assembly. The top surface of the building body is fixedly connected with the guide plate, and collecting pipes are fixedly provided on both sides of the building body below the guide plate. The two ends of the collecting pipe are respectively fixedly connected with the collecting port, the bottom end of the collecting port is fixedly connected with the first conveying pipe, and the middle part of the first conveying pipe is fixedly connected with the transfer collection box.

[0010] As a preferred embodiment of the energy-saving building structure provided by the present invention, the water collection assembly includes a guide groove, a sliding rod, an air bag, a second conveying pipe, a flap and a pull rope, the inner wall of the transfer collection box is symmetrically provided with a guide groove, the inner wall of the guide groove is slidably connected with a sliding rod, the top surface of the sliding rod is fixedly connected with an air bag, the bottom end of the transfer collection box is fixedly connected with the second conveying pipe, the top surface of the second conveying pipe is provided with a flap and the flap is hingedly connected to the second conveying pipe, the bottom surface of the sliding rod is fixedly connected with a pull rope and the end of the pull rope away from the sliding rod is fixedly connected to the top surface of the flap.

[0011] As a preferred embodiment of the energy-saving building structure provided by the present invention, the overflow opening and closing assembly includes a bottom bearing seat, a guide light rod, a limit ring, a filter screen plate, a sliding block, a through hole and a sealed chamber, the two ends of the collecting pipe are symmetrically fixedly connected with the bottom bearing seat, the top surface of the bottom bearing seat is fixedly connected with the guide light rod, the end of the guide light rod away from the bottom bearing seat is fixedly connected with the limit ring, the middle part of the collecting pipe is slidably provided with a filter screen plate, the two ends of the filter screen plate are fixedly connected with sliding blocks and the sliding blocks are slidably connected to the surface of the guide light rod, the top surface of the transfer collection box is provided with a through hole, the top surface of the sliding rod is fixedly connected with a top rod and the top rod passes through the through hole and is fixedly connected to the bottom surface of the filter screen plate with the collecting pipe, and the top rod is slidably connected to the middle part of the collecting pipe.

[0012] As a preferred embodiment of the energy-saving building structure provided by the present invention, the power generation component includes a sealed chamber, a rotating sleeve, an impeller and a generator, the bottom end of the second conveying pipeline is fixedly connected to the sealed chamber, the middle part of the sealed chamber is rotatably connected to the rotating sleeve, the surface of the rotating sleeve is fixedly connected to the impeller and the impeller is rotatably arranged in the middle part of the sealed chamber, the side of the building body is fixedly connected to the generator, and the transmission shaft of the generator is fixedly connected to the middle part of the rotating sleeve.

[0013] As a preferred embodiment of the energy-saving building structure provided by the present invention, the rainwater recovery and filtering mechanism includes a filter barrel, a third delivery pipe, a water storage tank and a filter assembly, the bottom end of the sealed chamber is fixedly connected to the filter barrel, the bottom end of the filter barrel is fixedly connected to the third delivery pipe, the end of the third delivery pipe away from the filter barrel is fixedly connected to the water storage tank, and the water storage tank is arranged below the base.

[0014] As a preferred embodiment of the energy-saving building structure provided by the present invention, the filter assembly includes a sand and gravel layer, a crushed stone layer, an activated carbon plate and a honeycomb ceramic ring, and the sand and gravel layer, the crushed stone layer, the activated carbon plate and the honeycomb ceramic ring are fixedly arranged longitudinally from top to bottom in the middle of the third conveying pipe.

[0015] As a preferred embodiment of the energy-saving building structure provided by the present invention, the photovoltaic power generation mechanism includes an electric push rod, an articulated seat, a photovoltaic panel and a power storage component, the front of the building body is fixedly connected with the electric push rod, one end of the guide plate is fixedly connected with the articulated seat, and the photovoltaic panel is respectively hingedly connected to the articulated seat and the electric push rod.

[0016] As a preferred embodiment of the energy-saving building structure provided by the present invention, the power storage component includes a protective frame, a battery and an inverter, the upper end of the base is fixedly connected to the protective frame, the middle part of the protective frame is fixedly provided with a battery, the middle part of the protective frame is fixedly connected to the inverter, and the generator and photovoltaic panel are electrically connected to the battery respectively.

[0017] A method for constructing an energy-saving building structure, comprising:

[0018] S1: The guide plate in the rainwater return power generation mechanism is installed on the top of the main body of the house. After completion, collecting pipes are installed on both sides of the main body of the house, so that rainwater can enter the collecting pipes through the guide plate;

[0019] S2: After completion, the transfer collection box is set at the bottom end of the first delivery pipe and the generator is connected to the rotating sleeve at the bottom end of the transfer collection box. After the water flows into the transfer collection box through the collecting pipe and the first delivery pipe, it can be transported to the middle of the sealed chamber through the second delivery pipe, and at the same time, the impeller rotates to drive the generator to generate electricity;

[0020] S3: After completion, the filter barrel is connected to the discharge port of the sealed chamber, and the bottom end of the filter barrel is connected to the water storage tank through the third delivery pipe. The water storage tank is preset below the base, or can be directly set below the filter barrel, so that rainwater can be reused for the second time;

[0021] S4: Install the photovoltaic panels on the front of the main body of the house to realize photovoltaic power generation. After completion, connect the photovoltaic panels to the generator and the battery to store the electrical energy.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The energy-saving building structure provided by the present invention is provided with a rainwater return power generation mechanism. After the rainwater flows to the roof, it is collected through the collecting pipe and supplied to the interior of the transfer collection box through the collecting port and the first delivery pipe. If the water level inside the transfer collection box is low, the rainwater will be stored in the interior of the transfer collection box. When the water volume is sufficient, the flap can be pulled by the airbag and the pull rope to open the second delivery pipe, thereby ensuring that the water flow has enough impact force on the impeller to rotate the impeller, so that the generator can be driven by the rotating sleeve to complete power generation.

[0024] The energy-saving building structure provided by the present invention is provided with an overflow opening and closing component in the rainwater return power generation mechanism. When the rainwater flow is too large, the air bag floats up and pushes the filter screen plate upward through the top rod to fully open the opening of the collecting pipe, thereby ensuring the water intake inside the transfer collection box so that the generator can continue to generate electricity.

[0025] The energy-saving building structure provided by the present invention is provided with a photovoltaic power generation mechanism. If it is a sunny day, the photovoltaic panel can be pushed to flip outward by turning on the electric push rod, thereby generating photovoltaic power. At the same time, the electricity generated by the photovoltaic panel and the generator can be stored in the battery and powered to electrical appliances through the inverter.

[0026] The energy-saving building structure provided by the present invention is provided with a rainwater recovery and filtering mechanism. Rainwater flowing out from the middle of the sealed chamber flows into the interior of the water storage tank through the filter barrel and the third delivery pipe and is stored. While passing through the filter barrel, it can be filtered through the internal sand and gravel layer, gravel layer, activated carbon plate and honeycomb ceramic ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the scheme of the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the overall structure of the energy-saving building structure provided by the present invention;

[0029] Figure 2 A schematic diagram of the connection structure of the rainwater return power generation mechanism, rainwater recovery and filtration mechanism, and photovoltaic power generation mechanism of the energy-saving building structure provided by the present invention;

[0030] Figure 3 Energy-saving building structure provided by the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 4 A schematic diagram of the connection structure between the rainwater return power generation mechanism and the rainwater recovery and filtration mechanism of the energy-saving building structure provided by the present invention;

[0032] Figure 5 A schematic diagram of the structure of the rainwater return power generation mechanism for the energy-saving building structure provided by the present invention;

[0033] Figure 6 A schematic diagram of the internal structure of the rainwater return power generation mechanism for the energy-saving building structure provided by the present invention;

[0034] Figure 7 Energy-saving building structure provided by the present invention Figure 6 A schematic diagram of the enlarged structure at B in the middle;

[0035] Figure 8 A schematic diagram of the internal structure of the rainwater recovery and filtration mechanism of the energy-saving building structure provided by the present invention.

[0036] The markings in the figure are as follows:

[0037] 1. Base; 2. Building body; 3. Rainwater return power generation mechanism; 4. Rainwater recovery and filtration mechanism; 5. Photovoltaic power generation mechanism; 6. Guide plate; 7. Collecting pipe; 8. Bottom bearing seat; 9. Guide light rod; 10. Limiting ring; 11. Filter screen; 12. Sliding block; 13. Collecting port; 14. First conveying pipe; 15. Transfer collection box; 16. Guide groove; 17. Sliding rod; 18. Air bag; 19. Second conveying pipe; 2 0. Flip cover; 21. Pull rope; 22. Through hole; 23. Push rod; 24. Sealed chamber; 25. Rotating sleeve; 26. Impeller; 27. Generator; 28. Filter barrel; 29. ​​Third delivery pipe; 30. Water storage tank; 31. Sand and gravel layer; 32. Gravel layer; 33. Activated carbon plate; 34. Honeycomb ceramic ring; 35. Electric push rod; 36. Articulated seat; 37. Photovoltaic panel; 38. Protective frame; 39. Battery; 40. Inverter. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] As described in the background technology, the energy-saving part mentioned in the device is only provided by photovoltaic energy. However, some cities have abundant rainfall, resulting in more rainy days than sunny days at some times. This will cause all the rainwater to flow to the ground or into the sewer, which will lead to excessive energy waste.

[0040] In order to solve this technical problem, the present invention provides an energy-saving building structure, which is applied to rainwater power generation and filtration storage as well as photovoltaic power generation and storage.

[0041] Specifically, please refer to Figure 1-Figure 2 The energy-saving building structure specifically includes a base 1 and a building body 2, and also includes a rainwater return power generation mechanism 3, a rainwater recovery and filtering mechanism 4 and a photovoltaic power generation mechanism 5. The building body 2 is arranged on the upper end of the base 1, the top of the building body 2 is arranged with the rainwater return power generation mechanism 3, the two sides of the building body 2 are arranged with the rainwater recovery and filtering mechanism 4, and the front of the building body 2 is arranged with the photovoltaic power generation mechanism 5.

[0042] The energy-saving building structure provided by the present invention is provided with a rainwater return power generation mechanism 3. After the rainwater flows to the roof, it is collected through the collecting pipe 7 and supplied to the interior of the transfer collection box 15 through the collecting port 13 and the first conveying pipe 14. If the water level inside the transfer collection box 15 is low, the rainwater will be stored in the interior of the transfer collection box 15. When the water volume is sufficient, the flap 20 can be pulled by the airbag 18 and the pull rope 21 to open the second conveying pipe 19, thereby ensuring that the water flow has sufficient impact force on the impeller 26 to rotate the impeller 26, so that the generator 27 can be driven by the rotating sleeve 25 to complete power generation.

[0043] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0044] Embodiment 1:

[0045] Please refer to Figure 2-Figure 8 An energy-saving building structure, whose rainwater return power generation mechanism 3 includes a guide plate 6, a collecting pipe 7, a collecting port 13, a first conveying pipe 14, a transfer collection box 15, a water collection component overflow opening and closing component and a power generation component. The top surface of the building body 2 is fixedly connected with the guide plate 6, and the two sides of the building body 2 are fixedly provided with collecting pipes 7 below the guide plate 6. The two ends of the collecting pipe 7 are respectively fixedly connected with the collecting port 13, the bottom end of the collecting port 13 is fixedly connected with the first conveying pipe 14, and the middle part of the first conveying pipe 14 is fixedly connected with the transfer collection box 15.

[0046] Specifically, the water collection component includes a guide groove 16, a slide rod 17, an air bag 18, a second conveying pipe 19, a flap 20 and a pull rope 21. The inner wall of the transfer collection box 15 is symmetrically provided with a guide groove 16, the inner wall of the guide groove 16 is slidably connected with the slide rod 17, the top surface of the slide rod 17 is fixedly connected with the air bag 18, the bottom end of the transfer collection box 15 is fixedly connected with the second conveying pipe 19, the top surface of the second conveying pipe 19 is provided with a flap 20 and the flap 20 is hingedly connected to the second conveying pipe 19, the bottom surface of the slide rod 17 is fixedly connected with the pull rope 21 and the end of the pull rope 21 away from the slide rod 17 is fixedly connected to the top surface of the flap 20.

[0047] Specifically, the overflow opening and closing assembly includes a bottom bearing seat 8, a guide light rod 9, a limit ring 10, a filter screen plate 11, a sliding block 12, a through hole 22 and a sealing chamber 24. The two ends of the collecting pipe 7 are symmetrically fixedly connected with the bottom bearing seat 8, the top surface of the bottom bearing seat 8 is fixedly connected with the guide light rod 9, and the end of the guide light rod 9 away from the bottom bearing seat 8 is fixedly connected with the limit ring 10. The middle part of the collecting pipe 7 is slidably provided with a filter screen plate 11, the two ends of the filter screen plate 11 are fixedly connected with the sliding block 12 and the sliding block 12 is slidably connected to the surface of the guide light rod 9, the top surface of the transfer collection box 15 is provided with a through hole 22, the top surface of the sliding rod 17 is fixedly connected with a top rod 23 and the top rod 23 passes through the through hole 22 and is fixedly connected to the bottom surface of the filter screen plate 11 with the collecting pipe 7, and the top rod 23 is slidably connected to the middle part of the collecting pipe 7.

[0048] Specifically, the power generation component includes a sealed chamber 24, a rotating sleeve 25, an impeller 26 and a generator 27. The bottom end of the second delivery pipeline 19 is fixedly connected to the sealed chamber 24, the middle of the sealed chamber 24 is rotatably connected to the rotating sleeve 25, the surface of the rotating sleeve 25 is fixedly connected to the impeller 26 and the impeller 26 is rotatably arranged in the middle of the sealed chamber 24, the side of the building body 2 is fixedly connected to the generator 27, and the transmission shaft of the generator 27 is fixedly connected to the middle of the rotating sleeve 25.

[0049] Specifically, the rainwater recovery and filtering mechanism 4 includes a filter barrel 28, a third delivery pipe 29, a water storage tank 30 and a filter assembly. The bottom end of the sealed chamber 24 is fixedly connected to the filter barrel 28, and the bottom end of the filter barrel 28 is fixedly connected to the third delivery pipe 29. The end of the third delivery pipe 29 away from the filter barrel 28 is fixedly connected to the water storage tank 30, and the water storage tank 30 is arranged below the base 1.

[0050] Specifically, the filter assembly includes a sand layer 31, a crushed stone layer 32, an activated carbon plate 33 and a honeycomb ceramic ring 34, which are fixedly arranged longitudinally from top to bottom in the middle of the third conveying pipe 29.

[0051] With the above structural design, when it is rainy, rainwater falls on the surface of the guide plate 6, flows to the middle of the collecting pipe 7 through the guide of the guide plate 6, and is then transported to the inside of the transfer collection box 15 through the collecting port 13 and the first conveying pipe 14. When the rainfall is small, the rainwater enters the inside of the transfer collection box 15 for temporary storage. The airbag 18 begins to float due to the continuous accumulation of rainwater, and can then drive the top of the pull rope 21 to rise through the slide rod 17. When the airbag 18 is about to reach the top of the inside of the transfer collection box 15, the bottom end of the pull rope 21 pulls the flip cover 20 to flip the flip cover 20 and the surface of the second conveying pipe 19 so that the flip cover 20 stops blocking the second conveying pipe 19. At this time, the rainwater enters the inside of the sealed chamber 24 through the second conveying pipe 19. After the water flow enters the sealed chamber 24, it pushes the impeller 26 in the sealed chamber 24 to drive the rotating sleeve 25 to rotate, and the rotating sleeve 25 drives the generator 27 to transmit the energy. The driving shaft rotates, so that the generator 27 can generate electricity. When the airbag 18 drives the slide bar 17 to rise, the top rod 23 pushes the filter screen plate 11 to slide upward on the surface of the guide light rod 9 through the sliding block 12, so that the top of the collecting pipe 7 can be fully opened. At this time, if the rainwater in the transfer collection box 15 is completely discharged, the slide bar 17 drives the top rod 23 to make the filter screen plate 11 naturally drop. If the rainfall continues to increase, the rainwater in the transfer collection box 15 is always in a sufficient state, and the filter screen plate 11 is always kept in an open state to ensure the water intake in the transfer collection box 15. In this way, the impeller 26 can continue to rotate to drive the generator 27 to generate electricity. The rainwater passes through the sealed chamber 24 and enters the interior of the filter barrel 28. After being filtered by the sand and gravel layer 31, the gravel layer 32, the activated carbon plate 33 and the honeycomb ceramic ring 34, the rainwater enters the interior of the water storage tank 30 through the battery 39 for storage.

[0052] Embodiment 2:

[0053] The energy-saving building structure provided in Example 1 is further optimized. Specifically, Figure 2-Figure 4 As shown, the photovoltaic power generation mechanism 5 includes an electric push rod 35, an articulated seat 36, a photovoltaic panel 37 and a power storage component. The front of the building body 2 is fixedly connected to the electric push rod 35, one end of the guide plate 6 is fixedly connected to the articulated seat 36, and the photovoltaic panel 37 is hingedly connected to the articulated seat 36 and the electric push rod 35 respectively.

[0054] Specifically, the power storage component includes a protective frame 38, a battery 39 and an inverter 40. The upper end of the base 1 is fixedly connected to the protective frame 38, the middle part of the protective frame 38 is fixedly provided with a battery 39, the middle part of the protective frame 38 is fixedly connected to the inverter 40, and the generator 27 and the photovoltaic panel 37 are electrically connected to the battery 39 respectively.

[0055] Through the above structural design, when it is sunny, the electric push rod 35 is controlled to open and push the photovoltaic panel 37 to open. The photovoltaic panel 37 flips outward with the hinge seat 36 as the axis. When the photovoltaic panel 37 flips to a suitable angle, the electric push rod 35 can be closed. In this way, electricity can be generated by the photovoltaic panel 37. The electric energy generated by the photovoltaic panel 37 and the generator 27 is stored in the battery 39, and can be used by external electrical equipment through the inverter 40.

Claims

1. An energy-saving building structure, comprising a base (1) and a building body (2), characterized in that: It also comprises a rainwater return power generation mechanism (3), a rainwater recovery and filtering mechanism (4) and a photovoltaic power generation mechanism (5); a house body (2) is arranged at the upper end of the base (1); a rainwater return power generation mechanism (3) is arranged at the top of the house body (2); rainwater recovery and filtering mechanisms (4) are arranged on both sides of the house body (2); and a photovoltaic power generation mechanism (5) is arranged on the front of the house body (2); The rainwater return power generation mechanism (3) comprises a guide plate (6), a collecting pipe (7), a collecting port (13), a first delivery pipe (14), a transfer collection box (15), a water collection component overflow opening and closing component and a power generation component. The top surface of the building body (2) is fixedly connected to the guide plate (6), and the two sides of the building body (2) are fixedly provided with collecting pipes (7) below the guide plate (6). The two ends of the collecting pipe (7) are respectively fixedly connected to the collecting port (13), the bottom end of the collecting port (13) is fixedly connected to the first delivery pipe (14), and the middle part of the first delivery pipe (14) is fixedly connected to the transfer collection box (15).

2. The energy-saving building structure according to claim 1, characterized in that: The water collecting assembly comprises a guide groove (16), a slide bar (17), an air bag (18), a second conveying pipe (19), a flap (20) and a pull rope (21); the inner wall of the transfer collection box (15) is symmetrically provided with a guide groove (16); the inner wall of the guide groove (16) is slidably connected with a slide bar (17); the top surface of the slide bar (17) is fixedly connected with the air bag (18); the bottom end of the transfer collection box (15) is fixedly connected with the second conveying pipe (19); the top surface of the second conveying pipe (19) is provided with a flap (20) and the flap (20) is hingedly connected to the second conveying pipe (19); the bottom surface of the slide bar (17) is fixedly connected with a pull rope (21) and the end of the pull rope (21) away from the slide bar (17) is fixedly connected to the top surface of the flap (20).

3. The energy-saving building structure according to claim 2, characterized in that: The overflow opening and closing assembly comprises a bottom bearing seat (8), a guide light rod (9), a limit ring (10), a filter screen plate (11), a sliding block (12), a through hole (22) and a sealing chamber (24); the two ends of the collecting pipe (7) are symmetrically fixedly connected to the bottom bearing seat (8); the top surface of the bottom bearing seat (8) is fixedly connected to the guide light rod (9); one end of the guide light rod (9) away from the bottom bearing seat (8) is fixedly connected to the limit ring (10); the middle part of the collecting pipe (7) is slidably arranged A filter screen plate (11) is provided, and sliding blocks (12) are fixedly connected at both ends of the filter screen plate (11), and the sliding blocks (12) are slidably connected to the surface of a guide light rod (9); a through hole (22) is provided on the top surface of the transfer collection box (15); a top rod (23) is fixedly connected to the top surface of the sliding rod (17), and the top rod (23) passes through the through hole (22) and is fixedly connected to the bottom surface of the filter screen plate (11) with a collecting pipe (7); and the top rod (23) is slidably connected to the middle part of the collecting pipe (7).

4. The energy-saving building structure according to claim 3, characterized in that: The power generation assembly comprises a sealed chamber (24), a rotating sleeve (25), an impeller (26) and a generator (27); the bottom end of the second delivery pipeline (19) is fixedly connected to the sealed chamber (24); the middle of the sealed chamber (24) is rotatably connected to the rotating sleeve (25); the surface of the rotating sleeve (25) is fixedly connected to the impeller (26) and the impeller (26) is rotatably arranged in the middle of the sealed chamber (24); the side of the building body (2) is fixedly connected to the generator (27), and the transmission shaft of the generator (27) is fixedly connected to the middle of the rotating sleeve (25).

5. The energy-saving building structure according to claim 4, characterized in that: The rainwater recovery and filtering mechanism (4) comprises a filter barrel (28), a third delivery pipe (29), a water storage tank (30) and a filter assembly; the bottom end of the sealed chamber (24) is fixedly connected to the filter barrel (28); the bottom end of the filter barrel (28) is fixedly connected to the third delivery pipe (29); one end of the third delivery pipe (29) away from the filter barrel (28) is fixedly connected to the water storage tank (30); and the water storage tank (30) is arranged below the base (1).

6. The energy-saving building structure according to claim 5, characterized in that: The filter assembly comprises a sandstone layer (31), a crushed stone layer (32), an activated carbon plate (33) and a honeycomb ceramic ring (34), wherein the sandstone layer (31), the crushed stone layer (32), the activated carbon plate (33) and the honeycomb ceramic ring (34) are fixedly arranged longitudinally from top to bottom in the middle of the third conveying pipe (29).

7. The energy-saving building structure according to claim 6, characterized in that: The photovoltaic power generation mechanism (5) comprises an electric push rod (35), an articulated seat (36), a photovoltaic panel (37) and an electric power storage component; the front of the house body (2) is fixedly connected to the electric push rod (35); one end of the guide plate (6) is fixedly connected to the articulated seat (36); and the photovoltaic panel (37) is respectively articulated to the articulated seat (36) and the electric push rod (35).

8. The energy-saving building structure according to claim 7, characterized in that: The power storage component comprises a protection frame (38), a storage battery (39) and an inverter (40); the upper end of the base (1) is fixedly connected to the protection frame (38); the middle part of the protection frame (38) is fixedly provided with a storage battery (39); the middle part of the protection frame (38) is fixedly connected to the inverter (40); the generator (27) and the photovoltaic panel (37) are electrically connected to the storage battery (39) respectively.

9. A method for constructing an energy-saving building structure, comprising any one of the energy-saving building structures of claims 1 to 8, characterized in that: include: S1: The guide plate (6) in the rainwater return power generation mechanism (3) is installed on the top of the building body (2), and after completion, a collecting pipe (7) is installed on both sides of the building body (2), so that rainwater can enter the collecting pipe (7) through the guide plate (6); S2: After completion, the transfer collection box (15) is arranged at the bottom end of the first delivery pipe (14) and the generator (27) is connected to the rotating sleeve (25) at the bottom end of the transfer collection box (15). After the water flows into the transfer collection box (15) through the collecting pipe (7) and the first delivery pipe (14), it can be transported to the middle of the sealed chamber (24) through the second delivery pipe (19). At the same time, the impeller (26) rotates to drive the generator (27) to generate electricity; S3: After completion, the filter barrel (28) is connected to the discharge port of the sealed chamber (24), and the bottom end of the filter barrel (28) is connected to the water storage tank (30) through the third delivery pipe (29). The water storage tank (30) is preset below the base (1), or can be directly set below the filter barrel (28), so that rainwater can be reused for a second time; S4: The photovoltaic panel (37) is installed on the front of the main body of the house (2), so that photovoltaic power generation can be realized. After completion, the photovoltaic panel (37) is connected to the generator (27) and the battery (39) to store electrical energy.

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