A building photovoltaic module and a green energy-saving building construction method

Abstract

The present application relates to a building photovoltaic assembly and a green energy-saving building construction method, wherein the main technical scheme is a building photovoltaic assembly, which includes a mounting frame, a keel, an exhaust pipe, a supporting channel steel and a pressure plate, wherein the keel is arranged in a transverse direction, the supporting channel steel is overlapped on the keel, a photovoltaic panel is fixed in the mounting frame, the lower surface of the side of the mounting frame abuts against the upper surface of the plane plate; a vertically arranged cylinder is fixed on the lower surface of the plane plate, the lower end of the cylinder is connected and fixed with a mounting cylinder, the keel is provided with a mounting hole for inserting the mounting cylinder, the inner wall of the mounting hole is provided with a limiting hole, a limiting block for inserting into the limiting hole is slidably connected in the mounting cylinder; a first piston and a second piston are vertically slidably arranged in the cylinder, the first piston is located above the second piston, a negative pressure cavity is formed between the first piston and the second piston, and the exhaust pipe is used to evacuate the negative pressure cavity. The building photovoltaic assembly of the present application has a good earthquake-resistant effect.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic building integration, and in particular to a building photovoltaic component and a green energy-saving building construction method. Background Art

[0002] As the global demand for renewable energy continues to grow, the development of green energy has attracted increasing attention. Among them, building integrated photovoltaics (BIPV) refers to a technology that combines photovoltaic power generation systems with buildings to achieve power self-sufficiency and energy conservation and emission reduction, which is gradually becoming a trend in the development of green buildings and sustainable cities.

[0003] In BIPV, photovoltaic panels are integrated into the structure of the building, such as the roof, exterior walls, windows, etc., so that they can not only assume the structural function of the building but also perform photoelectric conversion.

[0004] Existing building roof photovoltaic components include keels, channel steels, mounting frames and photovoltaic panels, wherein the keels are installed on the roof of the building body, the channel steels are fixed on the keels, the photovoltaic panels are installed in the mounting frames, and the mounting frames are fixed to the channel steels.

[0005] However, the mounting frame and the channel steel are often fixed with bolts, that is, a rigid connection. When a strong earthquake occurs, the vibration force is transmitted through the rigid connection, so that the vibration force is easily applied directly to the photovoltaic panel, which can easily cause damage to the photovoltaic panel and the mounting frame. Summary of the invention

[0006] In order to improve the earthquake resistance effect, the present application provides a building photovoltaic component and a green energy-saving building construction method.

[0007] The present application provides a building photovoltaic assembly, which adopts the following technical solution:

[0008] A building photovoltaic assembly comprises a mounting frame, a keel, an exhaust pipe, a support channel steel and a pressure plate, wherein the keel is arranged in the transverse direction, the support channel steel is arranged in the longitudinal direction and overlapped on the keel, the support channel steel is W-shaped, and the support channel steel comprises a plane plate, a first inclined plate and a second inclined plate, the upper sides of the two first inclined plates are respectively integrally connected with the two sides of the plane plate, and the lower side of the second inclined plate is integrally connected with the lower side of the first inclined plate; a photovoltaic panel is fixed in the mounting frame, and the lower surface of the side edge of the mounting frame abuts against the upper surface of the plane plate; a through hole is vertically penetrated in the middle of the plane plate, a vertically arranged cylinder is fixed to the lower surface of the plane plate, the upper end of the cylinder is connected to the through hole, and the lower end of the cylinder is connected and fixed with a mounting cylinder, the keel is provided with a mounting hole for inserting the mounting cylinder, and the inner wall of the mounting hole is provided with a limiting hole , a limit block for inserting into the limit hole is slidably connected in the mounting cylinder; a first piston and a second piston are vertically slidably arranged in the cylinder, the first piston is located above the second piston, the outer circumferential surfaces of the first piston and the second piston are both provided with a first sealing ring, a negative pressure chamber is formed between the first piston and the second piston, the exhaust pipe is used to exhaust air from the negative pressure chamber, the exhaust pipe is provided with a first switch valve, wherein the first piston is fixed with a first vertical rod, the upper end of the first vertical rod passes through the through hole and is fixed to the pressure plate, the pressure plate is arranged longitudinally, and the two sides of the pressure plate are respectively abutted against the mounting frames on both sides; the second piston is fixed with a second vertical rod, and a wedge block is fixed at the lower end of the second vertical rod, and when the second vertical rod drives the wedge block to move upward, the wedge block abuts with the end of the limit block to force the limit block to slide and insert into the limit hole.

[0009] By adopting the above technical solution, an exhaust pipe, a first piston, a second piston and a first sealing ring are set, and the exhaust pipe is used to evacuate the air to force the first piston to move downward and the second piston to move upward. When the second piston moves upward, the second vertical rod drives the wedge block to move upward, and the wedge block abuts against the end of the limit block to force the limit block to slide into the limit hole, thereby completing the fixation of the support channel steel and the keel. When the first piston moves downward, it will drive the pressure plate to move downward to press the installation frame onto the support channel steel, thereby quickly completing the installation of the building photovoltaic module.

[0010] In addition, atmospheric pressure continuously acts on the first piston and the second piston. When an earthquake occurs, the vertical vibration force will force the mounting frame and the photovoltaic panel to vibrate upward, and the downward vibration force is transmitted to the pressure plate through the mounting frame. The pressure plate drives the first piston to move upward, and the atmospheric pressure will resist the vibration force to a certain extent. Since the vibration trend of the pressure plate is transmitted to the first piston, the first piston makes a small range of reciprocating motion, and the first sealing ring slides and rubs relative to the cylinder barrel, thereby converting the kinetic energy of the vibration force into frictional heat energy, which has the effect of buffering and shock absorption, thereby greatly improving the seismic resistance of the overall structure.

[0011] Optionally, a mating groove is recessed on the upper surface of the side of the mounting frame, and the mating groove is extended in the longitudinal direction. A sealing strip located in the mating groove is fixed to the side of the pressure plate. A sealing assembly is provided between two adjacent mounting frames in the longitudinal direction, and the sealing assembly includes two rubber strips respectively fixed to the sides of the mounting frame, and the two rubber strips are arranged opposite to each other. The opposite surfaces of the rubber strips are protruding with a plurality of convex strips, and the cross-section of the convex strips is semicircular. The convex strips of the two rubber strips are staggered and abutted.

[0012] By adopting the above technical solution, the waterproof effect can be improved through the cooperation between the sealing strip and the matching groove to prevent water from flowing from the matching position between the installation frame and the pressure plate to the roof; and the sealing strip can also absorb a certain amount of vibration force.

[0013] Secondly, the convex strips of the rubber strips engage with each other, which greatly improves the sealing effect between adjacent installation frames. At the same time, it can also reduce the occurrence of vertical misalignment and vibration of adjacent installation frames under vibration force.

[0014] Optionally, the rubber strip is densely covered with a plurality of deformation holes, which are arranged along the length direction of the rubber strip, and a displacement sheet is fixedly passed through the rubber strip along its own length direction, and the end of the displacement sheet is bent to form an inclined portion, and the distance between the inclined portions of the two displacement sheets increases from top to bottom; a support rod is fixed to the lower surface of the pressure plate, and two inclined rods are fixed to the lower end of the support rod, and the support rod and the inclined rod are in an inverted Y shape, and the surface of the inclined rod abuts against the outer inclined surface of the inclined portion; when the pressure plate drives the support rod and the inclined rod to move downward, the inclined rod will force the two inclined portions to approach each other through abutment, so as to force the two relative rubber strips to stretch and deform toward each other, and the convex strips of the two rubber strips abut against each other in an offset manner.

[0015] By adopting the above technical scheme, the rubber strip has the possibility of stretching and deforming along its own width direction through the densely arranged deformation holes, and by arranging the displacement sheet, the inclined portion and the inclined rod, when the atmospheric pressure forces the first piston and the pressure plate to move downward, when the pressure plate drives the support rod and the inclined rod to move downward, the inclined rod will force the two inclined portions to approach each other through abutment, so as to force the two opposite rubber strips to stretch and deform toward each other, and the convex strips of the two rubber strips are staggered and abutted, that is, the atmospheric pressure is converted into a force that forces the rubber strip to stretch and deform, thereby making the bite fit stronger and the sealing effect better.

[0016] Furthermore, when the mounting frame is subjected to horizontal vibration force and is displaced horizontally, the elastically deformed rubber strip will buffer the horizontal vibration force. At the same time, the horizontal vibration force will also be transmitted to the pressure plate through the inclined portion, thereby forcing the pressure plate and the first piston to move vertically. The friction heat generated by the first sealing ring of the first piston can consume the horizontal vibration force, thereby further improving the anti-vibration effect.

[0017] Optionally, it also includes an air injection pipe, wherein a spacer ring is fixed to the inner cavity of the cylinder, the spacer ring is located above the first piston, the first vertical rod slides through the center hole of the spacer ring, a positive pressure chamber is formed between the spacer ring and the first piston, the air injection pipe is used to inject air into the positive pressure chamber, and the air injection pipe is provided with a second switch valve.

[0018] By adopting the above technical solution and setting a positive pressure chamber, the air pressure in the positive pressure chamber differs greatly from that in the negative pressure chamber, so that the downward pressure on the first piston is further increased, thereby improving the pressing and fixing effect of the pressure plate on the mounting frame.

[0019] Optionally, it also includes an air injection pipe, the inner cavity of the cylinder is fixed with a spacer ring, the spacer ring is located above the first piston, the first vertical rod slides through the center hole of the spacer ring, a positive pressure chamber is formed between the spacer ring and the first piston, the air injection pipe is used to inject air into the positive pressure chamber, the air injection pipe is provided with a second switch valve; the first vertical rod is provided with a first air channel, the pressure plate is provided with a second air channel, the support rod and the inclined rod are provided with a third air channel, an active chamber is opened on the inner side surface of the inclined rod, and an inclined plate is slidably connected in the active chamber; the gas in the positive pressure chamber enters the active chamber through the first air channel, the second air channel and the third air channel in turn, and the gas pressure in the active chamber forces the inclined plate to slide and abut against the inclined portion.

[0020] By adopting the above technical solution, the gas in the positive pressure chamber enters the active chamber through the first air channel, the second air channel and the third air channel in sequence. The gas pressure in the active chamber forces the inclined sheet to slide and abut against the inclined portion, thereby forcing the two rubber strips to fit further to improve the sealing effect, while also increasing the buffering effect of the horizontal vibration force exerted on the installation frame.

[0021] Optionally, the cylinder comprises a first cylinder body and a second cylinder body which are separately arranged in the upper and lower parts, wherein the upper end of the first cylinder body is fixed to the flat plate, the lower end of the second cylinder body is fixed to the mounting cylinder, an avoidance gap is formed between the first cylinder body and the second cylinder body, the first piston is located in the first cylinder body, the second piston is located in the second cylinder body, a sleeve is fixedly mounted on the second cylinder body, and the sleeve is slidingly connected to the first cylinder body sleeve; a rubber sleeve is fixedly connected between the first cylinder body and the second cylinder body, the rubber sleeve is waist-shaped, the relative end surfaces of the first piston and the second piston are both protruding with annular protrusions, and the inner arc surface of the rubber sleeve abuts against the outer edge of the annular protrusion; the exhaust pipe is connected and fixed with a first branch pipe, and the first branch pipe vertically passes through the second piston.

[0022] By adopting the above technical solution, by arranging the first cylinder, the second cylinder and the rubber sleeve, a non-rigid connection is made between the support channel steel and the keel. Therefore, when the support channel steel is vertically displaced by vertical vibration force, the rubber sleeve will be forced to stretch vertically and the first piston will move upward, and the atmospheric pressure acts on the rubber sleeve and the first piston respectively, that is, the buffering effect of the atmospheric pressure on the vibration force is further enhanced.

[0023] Furthermore, the external atmospheric pressure applied to the outer arc surface of the rubber sleeve will force the middle portion of the rubber sleeve to deform inwardly to more closely abut against the outer edge of the annular protrusion, thereby improving the sealing effect between the first piston and the second piston and the cylinder barrel, thereby reducing the occurrence of pressure reduction due to leakage.

[0024] Optionally, it also includes an air injection pipe, the inner cavity of the first cylinder is fixed with a spacer ring, the spacer ring is located above the first piston, the first vertical rod slides through the center hole of the spacer ring, a positive pressure chamber is formed between the spacer ring and the first piston, the air injection pipe is used to inject air into the positive pressure chamber, the air injection pipe is provided with a second switch valve; the outer wall of the first cylinder is penetrated by an air vent, the air vent is connected to the positive pressure chamber, and the air vent is connected to the area between the inner circumference of the sleeve and the outer arc surface of the rubber sleeve.

[0025] By adopting the above technical solution, the high-pressure gas in the positive pressure chamber enters the area between the inner circumferential surface of the sleeve and the outer arc surface of the rubber sleeve through the vent hole, and the pressure of the high-pressure gas is applied to the outer arc surface of the rubber sleeve and the upper surface of the first piston, so that the buffering effect of atmospheric pressure on the vibration force is further enhanced.

[0026] At the same time, the high-pressure gas applied to the outer arc surface of the rubber sleeve will force the rubber sleeve to further shrink and deform in the radial direction, so that the axial length of the rubber sleeve is shortened, so as to drive the first cylinder and the second cylinder to move closer, so that the supporting channel steel is pressed more firmly on the keel, that is, the pressure of the high-pressure gas is converted into a downward force that forces the supporting channel steel to move downward, thereby improving the installation stability and the buffering effect of vertical vibration force.

[0027] Optionally, the inner circumferential surface of the sleeve is in contact with the outer circumferential surfaces of the upper end and the lower end of the rubber sleeve.

[0028] By adopting the above technical solution, when the supporting channel steel is vertically displaced by vertical vibration force, the first cylinder and the first piston will be forced to move upward, that is, the upper end of the rubber sleeve will slide relative to the sleeve, and the outer peripheral surface of the upper end of the rubber sleeve and the inner peripheral surface of the sleeve will undergo displacement friction to convert the vibration force into frictional heat energy, thereby improving the buffering and shock absorption effect.

[0029] The present application provides a building photovoltaic assembly, which adopts the following technical solution:

[0030] A green energy-saving building construction method is used to install building photovoltaic modules on the main body of the building, which includes the following steps: installing the keel on the roof of the main body of the building, the length direction of the keel is horizontal, and the arrangement direction of each keel is longitudinal; placing the supporting channel steel on the keel, the length direction of the supporting channel steel is longitudinal, and the arrangement direction of each supporting channel steel is transverse, and during the placement of the supporting channel steel, the installation tube is inserted into the installation hole; placing the installation frame with the photovoltaic panel on the flat plate of the supporting channel steel, ensuring that the rubber strips between the two adjacent installation frames in the longitudinal direction are arranged relative to each other, and the two The convex strips of the rubber strip are staggered and abutted; the pressure plate is placed on the side of the installation frame, the sealing strip of the pressure plate is stuck in the matching groove, and the first piston of the pressure plate extends into the cylinder; the vacuum pipe evacuates the negative pressure chamber to force the first piston to move downward and the second piston to move upward. When the second piston moves upward, the second vertical rod drives the wedge block to move upward, and the wedge block abuts against the end of the limit block to force the limit block to slide into the limit hole, thereby completing the fixation of the support channel steel and the keel. When the first piston moves downward, it will drive the pressure plate to move downward to press the installation frame onto the support channel steel, and then stop pumping and close the first switch valve.

[0031] Optionally, leakage point detection is also included. After the air is pumped out, a leak detection paper strip is placed in the space between the pressure plate and the flat plate. The leak detection paper strip extends along the length direction of the pressure plate, and is located on one side of the sealing strip. A plurality of test parts are integrally formed on the side of the leak detection paper strip close to the sealing strip. The test parts are evenly arranged along the length direction of the leak detection paper strip. Then, water is flushed on the outer surface of the photovoltaic panel for 30-50 minutes. After the flushing is completed, the leak detection paper strip is taken out, and the pressure plate is disassembled according to the wetting condition of the test part at the leakage site, and the sealant is applied to the leakage site of the matching groove. Then, the pressure plate is reinstalled, and the sealing strip of the pressure plate squeezes the sealant to fill the leakage point.

[0032] By adopting the above technical solution, the leakage point can be detected in time, and according to the specific position of the test part, the single leakage point can be accurately filled in a targeted manner, thereby reducing the filling workload and improving the repair effect.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] By setting an exhaust pipe, a first piston, a second piston and a first sealing ring, the exhaust pipe is used to exhaust air, and the atmospheric pressure continuously acts on the first piston and the second piston to force the first piston to move downward and the second piston to move upward, thereby quickly completing the installation of the building photovoltaic assembly; and when an earthquake occurs, the vertical vibration force will force the installation frame and the photovoltaic panel to vibrate upward, and the pressure plate will drive the first piston to move upward, and the atmospheric pressure of the first piston will resist the vibration force to a certain extent, and because the vibration trend of the pressure plate is transmitted to the first piston, the first piston performs a small range of reciprocating motion, and the first sealing ring slides and rubs relative to the cylinder barrel, that is, the kinetic energy of the vibration force is converted into frictional heat energy, that is, it has a buffering and shock absorbing effect, thereby greatly improving the seismic effect of the overall structure;

[0035] By providing a displacement sheet, an inclined portion and an inclined rod, when the atmospheric pressure forces the first piston and the pressure plate to move downward, the pressure plate drives the support rod and the inclined rod to move downward, and the inclined rod forces the two inclined portions to approach each other through abutment, so as to force the two opposite rubber strips to stretch and deform toward each other, and the convex strips of the two rubber strips are staggered and abutted, that is, the atmospheric pressure is converted into a force forcing the rubber strips to stretch and deform, thereby making the bite fit stronger and the sealing effect better; and, when the mounting frame is subjected to a horizontal vibration force and displaced horizontally, the elastically deformed rubber strip will buffer the horizontal vibration force, and at the same time, the horizontal vibration force will also be transmitted to the pressure plate through the inclined portion, thereby forcing the pressure plate and the first piston to move vertically, and the friction heat generated by the first sealing ring of the first piston can consume the horizontal vibration force, thereby further improving the anti-seismic effect;

[0036] By providing a positive pressure chamber, the air pressure of the positive pressure chamber differs greatly from the air pressure of the negative pressure chamber, so that the downward pressure on the first piston is further increased, thereby improving the pressing and fixing effect of the pressing plate on the mounting frame;

[0037] By arranging the first cylinder, the second cylinder and the rubber sleeve, a non-rigid connection is made between the supporting channel steel and the keel. Therefore, when the supporting channel steel is vertically displaced by vertical vibration force, the rubber sleeve will be forced to stretch vertically and the first piston will move upward, and the atmospheric pressure acts on the rubber sleeve and the first piston respectively, that is, the buffering effect of the atmospheric pressure on the vibration force is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a top view of the building photovoltaic assembly of Example 1.

[0039] Figure 2 It is a partial cross-sectional view of the building photovoltaic assembly of Example 1.

[0040] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0041] Figure 4is a cross-sectional view of the sealing assembly of Example 1.

[0042] Figure 5 It is a partial cross-sectional view of the building photovoltaic assembly of Example 2.

[0043] Figure 6 It is a cross-sectional view of the sealing assembly of Example 3.

[0044] Figure 7 It is a schematic diagram of the end portion of the displacement plate of Example 3.

[0045] Figure 8 It is a partial cross-sectional view of the building photovoltaic assembly of Example 3.

[0046] Fig. 9 It is a schematic diagram of Example 3 for reflecting the matching relationship between the inclined rod and the inclined portion.

[0047] Fig.10 It is a partial cross-sectional view of the building photovoltaic assembly of Example 4.

[0048] Fig.11 It is a schematic diagram of Example 4 for illustrating the matching relationship between the inclined piece and the inclined portion.

[0049] Fig.12 It is a partial cross-sectional view of the architectural photovoltaic assembly of Example 5.

[0050] Fig.13 It is a cross-sectional view of the cylinder of Example 5.

[0051] Fig.14 It is a partial cross-sectional view of the architectural photovoltaic assembly of Example 6.

[0052] Fig.15 It is a cross-sectional view of the cylinder of Example 6.

[0053] Explanation of reference numerals: 1. Support channel steel; 2. Mounting frame; 3. Keel; 5. Pressing plate; 6. Cylinder; 7. Mounting cylinder; 8. Sealing assembly; 10. Photovoltaic panel; 11. Plane plate; 111. Perforation; 12. First inclined plate; 13. Second inclined plate; 20. Air extraction pipe; 21. Matching groove; 210. First branch pipe; 22. Drain hole; 30. Air injection pipe; 310. Second branch pipe; 31. Mounting hole; 32. Limiting hole; 50. Positive pressure chamber; 51. Sealing strip; 511. Second air channel; 52. Diagonal rod; 53. Support rod; 54. Third air channel; 56. Active chamber; 57. Inclined rod Inclined plate; 60, negative pressure chamber; 610, first cylinder; 6101, vent; 620, second cylinder; 61, second piston; 611, annular protrusion; 62, second vertical rod; 63, first piston; 64, first vertical rod; 641, first air channel; 65, spacer ring; 66, sleeve; 661, third through hole; 67, rubber sleeve; 671, fourth air channel; 71, first through hole; 72, limit block; 73, convex ring; 74, spring; 75, wedge block; 76, second through hole; 81, rubber strip; 82, convex strip; 83, deformation hole; 84, displacement plate; 85, inclined portion. DETAILED DESCRIPTION

[0054] The following is combined with Figure 1-15 This application is described in further detail. Example

[0055] Example 1 discloses a building photovoltaic assembly.

[0056] Reference Figure 1 and Figure 2 The building photovoltaic assembly includes an installation frame 2, a keel 3, an exhaust pipe 20, a support channel steel 1 and a pressure plate 5, wherein the keel 3 is provided in plurality, the length direction of the keel 3 is arranged in the horizontal direction, and each keel 3 is arranged at intervals in the longitudinal direction, the support channel steel 1 is provided in plurality, the length direction of the support channel steel 1 is arranged in the longitudinal direction, and each support channel steel 1 is arranged at intervals in the transverse direction, and the support channel steel 1 is overlapped on the keel 3; the length direction of the pressure plate 5 is consistent with that of the support channel steel 1, and the pressure plate 5 is located directly above the support channel steel 1.

[0057] like Figure 2 As shown, the support channel steel 1 is W-shaped, and the support channel steel 1 includes a flat plate 11, two first inclined plates 12 and two second inclined plates 13. The upper sides of the two first inclined plates 12 are integrally connected to the two sides of the flat plate 11, and the lower sides of the second inclined plates 13 are integrally connected to the lower sides of the first inclined plates 12. The angle area formed between the first inclined plates 12 and the second inclined plates 13 is set as a drainage area.

[0058] like Figure 2 , Figure 3As shown, a through hole 111 is vertically penetrated in the middle of the plane plate 11, a vertically arranged cylinder 6 is fixed on the lower surface of the plane plate 11, the upper end of the cylinder 6 is connected to the through hole 111, and the lower end of the cylinder 6 is connected and fixed with a mounting tube 7, a mounting hole 31 is vertically opened on the upper surface of the keel 3 for inserting the mounting tube 7, a horizontally arranged limiting hole 32 is provided on the inner wall of the mounting hole 31, and a limiting block 72 for inserting into the limiting hole 32 is slidably connected in the mounting tube 7, specifically, a first through hole 71 is horizontally penetrated in the side wall of the mounting tube 7, the limiting block 72 is slidably connected to the first through hole 71, and an annular convex ring 73 is fixed to the limiting block 72, and a spring 74 is sleeved on the limiting block 72, and the two ends of the spring 74 respectively abut against the convex ring 73 and the inner wall of the mounting tube 7, and the spring 74 is used to force the limiting block 72 to slide inward to retract into the mounting tube 7.

[0059] A second piston 61 is vertically slidably disposed in the cylinder 6 , a second vertical rod 62 is fixed to the lower surface of the second piston 61 , a wedge block 75 is fixed to the lower end of the second vertical rod 62 , and the inclined surface of the wedge block 75 abuts against the end of the limit block 72 away from the limit hole 32 .

[0060] In order to ensure that the outside air can enter the installation tube 7 , the installation tube 7 is further provided with a second through hole 76 .

[0061] like Figure 2 , Figure 4 As shown, a photovoltaic panel 10 is fixed in the mounting frame 2, and a sealing assembly 8 is provided between two mounting frames 2 adjacent in the longitudinal direction. The sealing assembly 8 includes two rubber strips 81 respectively fixed to the sides of the mounting frame 2, the two rubber strips 81 are arranged opposite to each other, and the opposite surfaces of the rubber strips 81 are protruded with a plurality of convex strips 82, the cross section of the convex strips 82 is semicircular, and the convex strips 82 of the two rubber strips 81 are arranged in a staggered abutment.

[0062] The lower surface of the side of the installation frame 2 abuts against the upper surface of the flat plate 11 . The upper surface of the side of the installation frame 2 is recessed with a matching groove 21 . The matching groove 21 is extended in the longitudinal direction and also passes through the rubber strip 81 .

[0063] A drainage hole 22 is also provided on the side of the mounting frame 2, and the drainage hole 22 is connected to the drainage area, that is, rainwater on the upper surface of the photovoltaic panel 10 can enter the drainage area through the drainage hole 22, and then enter the external drainage pipe through the drainage area.

[0064] like Figure 2 As shown, the pressure plate 5 is located directly above the plane plate 11, and the cross section of the pressure plate 5 is arc-shaped. A sealing strip 51 located in the matching groove 21 is fixed on the side. The sealing strip 51 cooperates with the matching groove 21 to improve the sealing and waterproof effect.

[0065] A first vertical rod 64 is fixed to the bottom surface of the pressure plate 5, and a first piston 63 is fixed to the lower end of the first vertical rod 64. The first piston 63 is located above the second piston 61. The outer peripheral surfaces of the first piston 63 and the second piston 61 are provided with a first sealing ring (not shown in the figure). A negative pressure chamber 60 is formed between the first piston 63 and the second piston 61. The exhaust pipe 20 is used to exhaust air from the negative pressure chamber 60. Specifically, the exhaust pipe 20 is extended in the longitudinal direction, and the exhaust pipe 20 is connected and fixed with a first branch pipe 210. The first branch pipe 210 is connected and fixed to the cylinder 6, so that the exhaust pipe 20 is connected to the negative pressure chamber 60, and the exhaust pipe 20 is provided with a first switch valve (not shown in the figure).

[0066] Embodiment 1 also provides a green energy-saving building construction method, which is used to construct and install the photovoltaic components of the upper building on the main body of the building. Specifically, the green energy-saving building construction method includes the following steps: after the roof construction of the main body of the building is completed, the keel 3 is installed on the roof of the main body of the building. The keel 3 can be fixed to the embedded parts on the roof by bolts, and then the supporting channel steel 1 is placed on the keel 3. During the placement of the supporting channel steel 1, the installation tube 7 is inserted into the installation hole 31. At this time, the limit block 72 is located in the installation tube 7, and the first through hole 71 is aligned with the limit hole 32; then the installation frame 2 with the photovoltaic panel 10 is placed on the flat plate 11 of the supporting channel steel 1, ensuring that the rubber strips 81 between the two adjacent installation frames 2 along the longitudinal direction are arranged relative to each other, and the convex strips 82 of the two rubber strips 81 are staggered and abutted.

[0067] The pressing plate 5 is placed on the side of the mounting frame 2 , the sealing strip 51 of the pressing plate 5 is inserted into the matching groove 21 , and the first piston 63 of the pressing plate 5 extends into the cylinder 6 .

[0068] One end of the exhaust pipe 20 is connected to an exhaust device, and the exhaust pipe 20 is used to exhaust the negative pressure chamber 60, forming a negative pressure in the negative pressure chamber 60, and the atmospheric pressure difference is used to force the first piston 63 to move downward and the second piston 61 to move upward. When the second piston 61 moves upward, the second vertical rod 62 drives the wedge block 75 to move upward, and the wedge block 75 abuts against the end of the limit block 72 to force the limit block 72 to slide into the limit hole 32, thereby completing the fixation of the support channel steel 1 and the keel 3. When the first piston 63 moves downward, it will drive the pressure plate 5 to move downward to press the mounting frame 2 onto the support channel steel 1, and then stop exhausting and close the first switch valve.

[0069] In this way, through the action of pumping air, not only can the installation and fixation between the supporting channel steel 1, the keel 3, the mounting frame 2 and the pressure plate 5 be quickly completed, but also the atmospheric pressure continues to act on the first piston 63 and the second piston 61. When an earthquake occurs, the vertical vibration force will force the mounting frame 2 and the photovoltaic panel 10 to vibrate upward, and the downward vibration force is transmitted to the pressure plate 5 through the mounting frame 2. The pressure plate 5 drives the first piston 63 to move upward, and the atmospheric pressure will resist the vibration force to a certain extent. In addition, since the vibration trend of the pressure plate 5 is transmitted to the first piston 63, the first piston 63 performs a small range of reciprocating motion, and the first sealing ring slides and rubs relative to the cylinder 6, thereby converting the kinetic energy of the vibration force into frictional heat energy, which has the effect of buffering and shock absorption, thereby greatly improving the seismic resistance of the overall structure.

[0070] In order to increase the stability of the seal, a leakage point detection step can also be added at the end of the construction. Specifically, after the air is pumped out, a leak detection paper strip is placed in the space between the pressure plate 5 and the flat plate 11. The leak detection paper strip extends along the length direction of the pressure plate 5. The leak detection paper strip is located on one side of the sealing strip 51. The leak detection paper strip is integrally formed with a plurality of test parts on the side close to the sealing strip 51. The test parts are evenly arranged along the length direction of the leak detection paper strip. Then, water is flushed on the outer surface of the photovoltaic panel 10 for 30-50 minutes. After the flushing is completed, the leak detection paper strip is taken out. If there is a leak between the sealing strip 51 and the flat plate 11, the leak detection paper strip is removed. At the local leakage point between the matching grooves 21, water will enter the space between the pressure plate 5 and the flat plate 11 from the local leakage point and infiltrate the test part corresponding to the position. Therefore, by checking the specific test part, the position of the specific leakage point between the sealing strip 51 and the matching groove 21 can be determined. If there is a leakage point, the first switch valve can be opened to restore the normal air pressure in the negative pressure chamber 60, and then the pressure plate 5 can be removed, and the leaking part of the matching groove 21 can be coated with sealant. Then the pressure plate 5 can be reinstalled, and the sealing strip 51 of the pressure plate 5 can squeeze the sealant to fill the leakage point. Example

[0071] The difference between Example 2 and Example 1 is that Figure 5 As shown, a spacer ring 65 is fixed to the inner cavity of the cylinder 6, and the spacer ring 65 is located above the first piston 63. The first vertical rod 64 slides through the center hole of the spacer ring 65. A second sealing ring (not shown in the figure) is fixed to the center hole of the spacer ring 65, and a positive pressure chamber 50 is formed between the spacer ring 65 and the first piston 63.

[0072] The upper end of the first vertical rod 64 and the bottom surface of the pressure plate 5 are set to be detachably connected. The detachable connection method can be achieved by screwing in bolts, and the bolts are respectively threaded with the first vertical rod 64 and the pressure plate 5, which is mainly convenient for the subsequent installation of the pressure plate 5. In this way, the first piston 63 can be reserved in the cylinder 6, and then when the pressure plate 5 is installed, the first vertical rod 64 and the pressure plate 5 are installed.

[0073] A building photovoltaic assembly also includes an air injection pipe 30, which is extended longitudinally. The air injection pipe 30 is fixed with a second branch pipe 310, and the second branch pipe 310 is connected and fixed to the cylinder 6, so that the air injection pipe 30 is connected to the positive pressure chamber 50, and the air injection pipe 30 is provided with a second switch valve (not shown in the figure).

[0074] By providing the positive pressure chamber 50 , the air pressure of the positive pressure chamber 50 is greatly different from the air pressure of the negative pressure chamber 60 , so that the downward pressure on the first piston 63 is further increased, thereby improving the pressing and fixing effect of the pressing plate 5 on the mounting frame 2 . Example

[0075] The difference between Example 3 and Example 1 is that Figure 6 , Figure 7 As shown, the rubber strip 81 is densely covered with a plurality of deformation holes 83, and the deformation holes 83 are arranged along the length direction of the rubber strip 81. The densely arranged deformation holes 83 enable the rubber strip 81 to have the possibility of stretching and deforming along its own width direction; a displacement sheet 84 is fixedly passed through the rubber strip 81 along its own length direction, and the width direction of the displacement sheet 84 is arranged vertically, and the end of the displacement sheet 84 is bent to form an inclined portion 85, and the distance between the inclined portions 85 of the two displacement sheets 84 increases from top to bottom.

[0076] like Figure 8 , Fig. 9 As shown, a support rod 53 is fixed to the lower surface of the pressing plate 5 , and two inclined rods 52 are fixed to the lower end of the support rod 53 . The support rod 53 and the inclined rod 52 are in an inverted Y shape, and the surface of the inclined rod 52 abuts against the outer inclined surface of the inclined portion 85 .

[0077] After the negative pressure chamber 60 is evacuated, as the atmospheric pressure forces the first piston 63 and the pressure plate 5 to move downward, the pressure plate 5 will drive the support rod 53 and the inclined rod 52 to move downward, and the inclined rod 52 abuts against the outer inclined surface of the inclined portion 85 to force the two inclined portions 85 to approach each other, thereby forcing the two opposite rubber strips 81 to stretch and deform toward each other, and the convex strips 82 of the two rubber strips 81 are more closely staggered and abutted, thereby making the bite fit stronger and the sealing effect better.

[0078] Furthermore, when the mounting frame 2 is subjected to horizontal vibration force and is displaced horizontally, the elastically stretched rubber strip 81 will buffer the horizontal vibration force. At the same time, the horizontal vibration force will also be transmitted to the pressure plate 5 through the inclined portion 85, thereby forcing the pressure plate 5 and the first piston 63 to move vertically. The friction heat generated by the first sealing ring of the first piston 63 can consume the horizontal vibration force, thereby further improving the anti-vibration effect. Example

[0079] The difference between Example 4 and Example 3 is that Fig.10 , Fig.11 As shown, the gas injection tube 30 and the spacer ring 65 in Example 2 are applied to the present embodiment, that is, the positive pressure chamber 50 is provided with high-pressure gas. At the same time, the following settings are also made: the first vertical rod 64 is provided with a first air channel 641, and the lower end of the first air channel 641 is connected to the positive pressure chamber 50; the pressure plate 5 is provided with a second air channel 511, and one end of the second air channel 511 is connected to the upper end of the first air channel 641; the support rod 53 and the inclined rod 52 are both provided with a third air channel 54 that is connected to one end of the second air channel 511; the inner side surface of the inclined rod 52 is provided with an active cavity 56, and the active cavity 56 is connected to the third air channel 54; and an inclined sheet 57 is slidably connected in the active cavity 56.

[0080] The gas in the positive pressure chamber 50 enters the active chamber 56 through the first air channel 641, the second air channel 511 and the third air channel 54 in turn. The gas pressure in the active chamber 56 forces the inclined sheet 57 to slide and abut against the inclined portion 85, thereby forcing the two rubber strips 81 to fit further to improve the sealing effect, while also increasing the buffering effect of the horizontal vibration force exerted on the installation frame 2. Example

[0081] The difference between Example 5 and Example 1 is that Fig.12 , Fig.13 As shown, the cylinder 6 includes a first cylinder body 610 and a second cylinder body 620 which are separated from each other in the upper and lower parts, wherein the upper end of the first cylinder body 610 is fixed to the flat plate 11, and the lower end of the second cylinder body 620 is fixed to the mounting cylinder 7, and an avoidance gap is formed between the first cylinder body 610 and the second cylinder body 620, the first piston 63 is located in the first cylinder body 610, and the second piston 61 is located in the second cylinder body 620, and the second cylinder body 620 is sleeved and fixed with a sleeve 66, and the sleeve 66 is sleeved and connected with the first cylinder body 610 in a sliding manner, and in order to ensure communication with the external atmosphere, a third through hole 661 is also opened on the sleeve 66.

[0082] A rubber sleeve 67 is fixedly connected between the first cylinder 610 and the second cylinder 620, that is, the upper end of the rubber sleeve 67 is sleeve-connected to the lower end of the first cylinder 610, and the lower end of the rubber sleeve 67 is sleeve-connected to the upper end of the second cylinder 620. In order to further increase the strength of the sleeve-connected connection, in other embodiments, a clamp can be used to tighten and fix the outer peripheral surface of the end of the rubber sleeve 67.

[0083] Furthermore, the outer circumferential surfaces of the upper and lower ends of the rubber sleeve 67 are in contact with the inner circumferential surface of the sleeve 66 .

[0084] The rubber sleeve 67 is in a thin waist shape. The opposite end surfaces of the first piston 63 and the second piston 61 are both protruded with an annular protrusion 611 . The inner arc surface of the rubber sleeve 67 abuts against the outer edge of the annular protrusion 611 .

[0085] At the same time, the deployment of the first branch pipe 210 is also changed. Specifically, the first branch pipe 210 vertically passes through the second cylinder 620 and the second piston 61 in sequence, and the outer peripheral surface of the penetration portion of the first branch pipe 210 is provided with a third sealing ring (not shown in the figure).

[0086] The implementation principle of Example 5 is as follows: first, by setting the first cylinder 610, the second cylinder 620 and the rubber sleeve 67, the support channel steel 1 and the keel 3 are connected in a non-rigid manner. Therefore, when the support channel steel 1 is vertically displaced by the vertical vibration force, the rubber sleeve 67 will be forced to stretch vertically and the first piston 63 will move upward. Since the atmospheric pressure acts on the rubber sleeve 67 and the first piston 63 respectively, the buffering effect of the atmospheric pressure on the vibration force is further enhanced. Moreover, when the support channel steel 1 is vertically displaced by the vertical vibration force, the upper end of the rubber sleeve 67 will slide relative to the sleeve 66, and the outer peripheral surface of the upper end of the rubber sleeve 67 will undergo displacement friction with the inner peripheral surface of the sleeve 66 to convert the vibration force into frictional heat energy, thereby improving the buffering and shock absorption effect.

[0087] Secondly, the external atmospheric pressure applied to the outer arc surface of the rubber sleeve 67 will force the middle part of the rubber sleeve 67 to deform inward to more closely abut against the outer edge of the annular protrusion 611, thereby improving the sealing effect between the first piston 63 and the second piston 61 and the cylinder 6 respectively, thereby reducing the occurrence of pressure reduction due to leakage. Example

[0088] The difference between Example 6 and Example 5 is that Fig.14 , Fig.15 As shown, the gas injection tube 30 and the spacer ring 65 in Example 2 are applied to this embodiment, that is, the positive pressure chamber 50 is provided with high-pressure gas. At the same time, the following settings are also made: an air vent 6101 is penetrated through the outer wall of the first cylinder 610, and a fourth air channel 671 is opened in the sleeve 66. One end of the fourth air channel 671 is connected to the positive pressure chamber 50 through the air vent 6101, and the other end of the fourth air channel 671 is connected to the area between the inner circumference of the sleeve 66 and the outer arc surface of the rubber sleeve 67.

[0089] In order to increase the sealing performance of the area between the inner circumference of the sleeve 66 and the outer arc surface of the rubber sleeve 67 , a fourth sealing ring (not shown in the figure) is further provided on the inner circumference of the upper end of the sleeve 66 .

[0090] The implementation principle of Example 6 is as follows: first, the high-pressure gas in the positive pressure chamber 50 enters the annular area between the inner circumferential surface of the sleeve 66 and the outer arc surface of the rubber sleeve 67 through the vent hole 6101 and the fourth air channel 671, and the pressure of the high-pressure gas is applied to the outer arc surface of the rubber sleeve 67 and the upper surface of the first piston 63, so that the buffering effect of the atmospheric pressure on the vibration force is further enhanced.

[0091] Secondly, the pressure of the high-pressure gas is applied to the outer arc surface of the rubber sleeve 67, which will force the rubber sleeve 67 to further shrink and deform in the radial direction, so that the axial length of the rubber sleeve 67 is shortened, so as to drive the first cylinder 610 and the second cylinder 620 to move closer, so as to drive the support channel steel 1 to be pressed more firmly on the keel 3, that is, the pressure of the high-pressure gas is converted into a downward force that forces the support channel steel 1 to move downward, thereby improving the installation stability and the buffering effect of vertical vibration force.

[0092] 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. A building photovoltaic assembly, characterized in that: The invention comprises an installation frame (2), a keel (3), an exhaust pipe (20), a support channel steel (1) and a pressure plate (5); the keel (3) is arranged in the transverse direction, the support channel steel (1) is arranged in the longitudinal direction and the support channel steel (1) is overlapped on the keel (3); the support channel steel (1) is W-shaped, and the support channel steel (1) comprises a plane plate (11), a first inclined plate (12) and a second inclined plate (13); the upper sides of the two first inclined plates (12) are respectively connected to the two sides of the plane plate (11) by integral molding, and the lower side of the second inclined plate (13) is connected to the lower side of the first inclined plate (12) by integral molding; a photovoltaic panel is fixed in the installation frame (2) (10), the lower surface of the side of the mounting frame (2) is in contact with the upper surface of the plane plate (11); a through hole (111) is vertically penetrated in the middle of the plane plate (11); a vertically arranged cylinder (6) is fixed on the lower surface of the plane plate (11); the upper end of the cylinder (6) is connected to the through hole (111); the lower end of the cylinder (6) is connected to and fixed with a mounting cylinder (7); the keel (3) is provided with a mounting hole (31) for inserting the mounting cylinder (7); a limiting hole (32) is provided on the inner wall of the mounting hole (31); a limiting block (72) for inserting into the limiting hole (32) is slidably connected in the mounting cylinder (7); A first piston (63) and a second piston (61) are vertically slidably disposed in the cylinder (6), the first piston (63) being located above the second piston (61), the outer circumferences of the first piston (63) and the second piston (61) being provided with a first sealing ring, a negative pressure chamber (60) being formed between the first piston (63) and the second piston (61), the air extraction pipe (20) being used to extract air from the negative pressure chamber (60), the air extraction pipe (20) being provided with a first switch valve, wherein the first piston (63) is fixed with a first vertical rod (64), the upper end of the first vertical rod (64) passing through the through hole (111) and being in contact with the pressure plate (5 ) is fixed, the pressure plate (5) is arranged in the longitudinal direction, and the two sides of the pressure plate (5) are respectively abutted against the installation frames (2) on the two sides; the second piston (61) is fixed with a second vertical rod (62), and the lower end of the second vertical rod (62) is fixed with a wedge block (75), and the inclined surface of the wedge block (75) abuts against the end of the limit block (72) away from the limit hole (32), when the second vertical rod (62) drives the wedge block (75) to move upward, the wedge block (75) abuts against the end of the limit block (72) to force the limit block (72) to slide and insert into the limit hole (32), and the wedge block (75) and the limit block (72) remain fixed.

2. The building photovoltaic assembly according to claim 1, characterized in that: The upper surface of the side edge of the installation frame (2) is recessed to form a matching groove (21), the matching groove (21) is extended in the longitudinal direction, and the side edge of the pressure plate (5) is fixed with a sealing strip (51) located in the matching groove (21); a sealing component (8) is provided between two adjacent installation frames (2) in the longitudinal direction, and the sealing component (8) includes two rubber strips (81) respectively fixed to the side edges of the installation frame (2), the two rubber strips (81) are arranged opposite to each other, and the opposite surfaces of the rubber strips (81) are protrudingly structured with a plurality of convex strips (82), the cross section of the convex strips (82) is semicircular, and the convex strips (82) of the two rubber strips (81) are arranged in a staggered abutment.

3. The building photovoltaic assembly according to claim 2, characterized in that: The rubber strip (81) is densely covered with a plurality of deformation holes (83), and the deformation holes (83) are arranged through the length direction of the rubber strip (81). A displacement sheet (84) is fixed through the rubber strip (81) along its own length direction, and the end of the displacement sheet (84) is bent to form an inclined portion (85), and the distance between the inclined portions (85) of the two displacement sheets (84) increases from top to bottom; a support rod (53) is fixed to the lower surface of the pressure plate (5), and the support rod (53) Two inclined rods (52) are fixed at the lower end, the support rod (53) and the inclined rod (52) are in an inverted Y shape, and the surface of the inclined rod (52) abuts against the outer inclined surface of the inclined portion (85); when the pressure plate (5) drives the support rod (53) and the inclined rod (52) to move downward, the inclined rod (52) forces the two inclined portions (85) to approach each other through abutment, so as to force the two opposite rubber strips (81) to stretch and deform toward each other, and the convex strips (82) of the two rubber strips (81) abut against each other in a staggered manner.

4. The building photovoltaic assembly according to claim 1, characterized in that: It also includes an air injection pipe (30), the inner cavity of the cylinder (6) is fixed with a spacer ring (65), the spacer ring (65) is located above the first piston (63), the first vertical rod (64) slides through the center hole of the spacer ring (65), and a positive pressure chamber (50) is formed between the spacer ring (65) and the first piston (63). The air injection pipe (30) is used to inject air into the positive pressure chamber (50), and the air injection pipe (30) is provided with a second switch valve.

5. The building photovoltaic assembly according to claim 3, characterized in that: The invention also comprises an air injection pipe (30), a spacer ring (65) is fixed to the inner cavity of the cylinder (6), the spacer ring (65) is located above the first piston (63), the first vertical rod (64) slides through the central hole of the spacer ring (65), a positive pressure chamber (50) is formed between the spacer ring (65) and the first piston (63), the air injection pipe (30) is used to inject air into the positive pressure chamber (50), and the air injection pipe (30) is provided with a second switch valve; the first vertical rod (64) is provided with a first air channel (641), and the pressure plate (5) A second air channel (511) is provided, the support rod (53) and the inclined rod (52) are provided with a third air channel (54), the inner side surface of the inclined rod (52) is provided with an active cavity (56), and an inclined plate (57) is slidably connected in the active cavity (56); the gas in the positive pressure cavity (50) enters the active cavity (56) through the first air channel (641), the second air channel (511) and the third air channel (54) in sequence, and the gas pressure in the active cavity (56) forces the inclined plate (57) to slide and abut against the inclined portion (85).

6. The building photovoltaic assembly according to claim 1, characterized in that: The cylinder (6) comprises a first cylinder (610) and a second cylinder (620) which are separated from each other in upper and lower parts, wherein the upper end of the first cylinder (610) is fixed to the flat plate (11), and the lower end of the second cylinder (620) is fixed to the mounting cylinder (7); an escape gap is formed between the first cylinder (610) and the second cylinder (620); the first piston (63) is located in the first cylinder (610), and the second piston (61) is located in the second cylinder (620); and the second cylinder (620) is sleeved and fixed with a sleeve (66). The sleeve (66) is slidably connected to the first cylinder (610); a rubber sleeve (67) is fixedly connected between the first cylinder (610) and the second cylinder (620); the rubber sleeve (67) is in a waist shape; the opposite end surfaces of the first piston (63) and the second piston (61) are both protruded with an annular protrusion (611); the inner arc surface of the rubber sleeve (67) abuts against the outer edge of the annular protrusion (611); the exhaust pipe (20) is connected and fixed with a first branch pipe (210), and the first branch pipe (210) vertically passes through the second piston (61).

7. The building photovoltaic assembly according to claim 6, characterized in that: It also includes an air injection pipe (30), the inner cavity of the first cylinder (610) is fixed with a spacer ring (65), the spacer ring (65) is located above the first piston (63), the first vertical rod (64) slides through the center hole of the spacer ring (65), a positive pressure chamber (50) is formed between the spacer ring (65) and the first piston (63), the air injection pipe (30) is used to inject air into the positive pressure chamber (50), and the air injection pipe (30) is provided with a second switch valve; the outer wall of the first cylinder (610) is penetrated by an air vent (6101), the air vent (6101) is connected to the positive pressure chamber (50), and the air vent (6101) is connected to the area between the inner circumference of the sleeve (66) and the outer arc surface of the rubber sleeve (67).

8. The building photovoltaic assembly according to claim 6 or 7, characterized in that: The inner circumferential surface of the sleeve (66) is in contact with the outer circumferential surfaces of the upper end and the lower end of the rubber sleeve (67).

9. A green energy-saving building construction method, used for installing the building photovoltaic assembly according to claim 2 on the main body of a building, characterized in that: The following steps are involved: The keel (3) is installed on the roof of the building body, the length direction of the keel (3) is horizontal, and the arrangement direction of each keel (3) is vertical; the support channel steel (1) is placed on the keel (3), the length direction of the support channel steel (1) is vertical, and the arrangement direction of each support channel steel (1) is horizontal. During the placement of the support channel steel (1), the installation tube (7) is inserted into the installation hole (31); the installation frame (2) with the photovoltaic panel (10) is placed on the flat plate (11) of the support channel steel (1), ensuring that the rubber strips (81) between the two adjacent installation frames (2) in the longitudinal direction are arranged oppositely, and the convex strips (82) of the two rubber strips (81) are staggered and abutted; the pressing plate (5) is placed on the side of the installation frame (2), and the pressing plate (5) The sealing strip (51) is inserted into the matching groove (21), and the first piston (63) of the pressure plate (5) extends into the cylinder (6); the vacuum pipe (20) evacuates the negative pressure chamber (60) to force the first piston (63) to move downward and the second piston (61) to move upward. When the second piston (61) moves upward, the second vertical rod (62) drives the wedge block (75) to move upward. The wedge block (75) abuts against the end of the limit block (72) to force the limit block (72) to slide into the limit hole (32), thereby completing the fixation of the support channel steel (1) and the keel (3). When the first piston (63) moves downward, it will drive the pressure plate (5) to move downward to press the installation frame (2) onto the support channel steel (1), and then stop evacuating air and close the first switch valve.

10. The green energy-saving building construction method according to claim 9 is characterized in that: The method also includes leakage point detection. After the air is evacuated, a leak detection paper strip is placed in the space between the pressing plate (5) and the flat plate (11). The leak detection paper strip extends along the length direction of the pressing plate (5). The leak detection paper strip is located on one side of the sealing strip (51). A plurality of test parts are integrally formed on the side of the leak detection paper strip close to the sealing strip (51). The test parts are evenly arranged along the length direction of the leak detection paper strip. Then, water is flushed on the outer surface of the photovoltaic panel (10) for 30-50 minutes. After the flushing is completed, the leak detection paper strip is taken out. According to the wetting condition of the test part at the leakage part, the pressing plate (5) is disassembled, and the leaking part of the matching groove (21) is coated with sealant. Then, the pressing plate (5) is reinstalled, and the sealing strip (51) of the pressing plate (5) squeezes the sealant to fill the leakage point.

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