Prefabricated building exterior wall PC components and floor slab node reinforcement components and reinforcement methods

Abstract

The present invention relates to the technical field of prefabricated buildings and discloses a prefabricated building exterior wall PC component and floor slab node reinforcement assembly and reinforcement method, comprising a first reinforcement mechanism and a second reinforcement mechanism, wherein an exterior wall PC component plate and a floor slab are disposed outside the first and second reinforcement mechanisms. The prefabricated building exterior wall PC component top reinforcement assembly and reinforcement method comprises placing the floor slab above the exterior wall PC component plate, allowing the first connection ports of the first and second reinforcement mechanisms to be sheathed with a first steel bar, and the second connection ports of the first and second reinforcement mechanisms to be sheathed with a second steel bar, allowing a screw to pass through the first and second reinforcement mechanisms through a screw hole, and a nut to be threadedly connected to the screw. The first and second reinforcement mechanisms further stabilize the connection between the exterior wall PC component plate and the floor slab, pouring concrete to form a first reinforcement layer, applying a waterproof layer above the first reinforcement layer and the fixing frame, and pouring concrete to form a second reinforcement layer.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and in particular to a prefabricated building exterior wall PC component and floor slab node reinforcement assembly and reinforcement method. Background Art

[0002] Exterior wall PC components are an important part of prefabricated buildings. PC components are prefabricated concrete parts. They are concrete products processed and produced in a standardized and mechanized manner in the factory. After the PC components are completed in the factory, they need to be transported to the construction site for assembly.

[0003] After the exterior wall PC components are transported to the construction site and erected, the floor slab is placed on top of the exterior wall PC components, and then concrete is poured into the upper part of the exterior wall PC components to fix the exterior wall PC components and the floor slab together. However, the concrete used to connect the exterior wall PC components and the floor slab is prone to cracking, which makes it easy for water to leak between the exterior wall PC components and the floor slab. Therefore, a reinforcement component and reinforcement method for the node between the exterior wall PC components and the floor slab of the prefabricated building are proposed to solve the above problems. Summary of the Invention

[0004] 1. Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a reinforcement assembly and reinforcement method for the nodes of prefabricated building exterior wall PC components and floor slabs, which has the advantages of stable connection and water leakage prevention, and solves the problem that the concrete used to connect the exterior wall PC components and the floor slabs is prone to cracking, which in turn causes water leakage between the exterior wall PC components and the floor slabs.

[0006] 2. Technical solution

[0007] To achieve the above-mentioned purpose of stable connection and water leakage prevention, the present invention provides the following technical solution: a prefabricated building exterior wall PC component and floor slab node reinforcement assembly, comprising a first reinforcement mechanism and a second reinforcement mechanism, wherein the exterior wall PC component plate and the floor slab are arranged outside the first reinforcement mechanism and the second reinforcement mechanism;

[0008] The interior of the exterior wall PC component plate is connected to a first steel bar, and the interior of the floor slab is connected to a second steel bar;

[0009] A first reinforcement layer is provided above the exterior wall PC component plate, a waterproof layer is provided outside the first reinforcement mechanism and the second reinforcement mechanism, and a second reinforcement layer is provided above the exterior wall PC component plate and the floor slab;

[0010] The first reinforcement mechanism and the second reinforcement mechanism are internally connected with screws, and the screws are externally connected with nuts;

[0011] The second reinforcement mechanism includes a fixing frame, a screw hole is opened inside the fixing frame, a first connecting port and a second connecting port are opened inside the fixing frame, one side of the fixing frame is connected to a fixing rod, one side of the fixing rod is connected to a connecting rod, one end of the connecting rod is connected to a plate column, and the outside of the plate column is connected to a lifting plate.

[0012] Preferably, the fixing frame is L-shaped, the fixing rod is connected to the inner side of the fixing frame, and the fixing frame and the fixing rod are combined to form an equilateral right triangle.

[0013] Preferably, the screw holes are equidistantly distributed, the positions of the screw holes of the first reinforcement mechanism correspond to the positions of the screw holes of the second reinforcement mechanism, the screw rod passes through the first reinforcement mechanism and the second reinforcement mechanism through the screw holes, and the nut is threadedly connected to the screw rod.

[0014] Preferably, the structure of the first reinforcement mechanism is consistent with that of the second reinforcement mechanism, the directions of the first connection port and the second connection port of the first reinforcement mechanism are opposite to the directions of the first connection port and the second connection port of the second reinforcement mechanism, the position of the first connection port corresponds to the position of the first steel bar, and the position of the second connection port corresponds to the position of the second steel bar;

[0015] A stopper is provided inside the first connection port and the second connection port, and the stopper is used to pull the corresponding steel bar.

[0016] Preferably, the lower wall of the fixing frame is in contact with the PC component board of the exterior wall, and the side wall of the fixing frame is in contact with the floor slab.

[0017] Preferably, the connecting rod of the first reinforcement mechanism is located at the lower end of the fixed rod, and the connecting rod of the second reinforcement mechanism is located at the upper end of the fixed rod. One first reinforcement mechanism and one second reinforcement mechanism form a group.

[0018] Preferably, the connecting rod is at a 90-degree angle to the fixing rod, the plate column is at a 90-degree angle to the horizontal plane, and there are no less than three rows of lifting plates, the three rows of lifting plates are spaced apart, and there are no less than three lifting plates in one row.

[0019] Preferably, the outer wall of the first reinforcement layer is flush with the fixing frame, the waterproof layer is located above the first reinforcement layer and the fixing frame, the second reinforcement layer is located above the waterproof layer, and the lifting plate is located inside the second reinforcement layer.

[0020] Preferably, a sliding piece is installed at the bottom of the floor slab near the side edge and at the top of the exterior wall PC component plate on one side of the floor slab;

[0021] A sealing member is also installed under the floor slab, and the sealing member is located on the side of the sliding plate away from the exterior wall PC component plate;

[0022] The seal includes a pressure-applying body fixedly mounted on the floor slab and a sealing body located on the side away from the pressure-applying body. The sealing body includes a sealing arc-shaped sheet 1, a sealing arc-shaped sheet 2, and a pre-compression sheet connected between the sealing arc-shaped sheet 1 and the sealing arc-shaped sheet 2. One end of the sealing arc-shaped sheet 1 and the sealing arc-shaped sheet 2 is mounted on the floor slab, and the other end is freely set. The pressure-applying body includes an annular bag and a wheel assembly located inside the annular bag. When the two sliding sheets are in contact, the annular bag is pressed onto the exterior wall PC component plate.

[0023] A method for reinforcing the top of a prefabricated building exterior wall PC component comprises the following steps:

[0024] Step 1:

[0025] Place the floor slab on top of the exterior wall PC component plate so that the two slides fit together and the pressure body fits on top of the exterior wall PC component plate;

[0026] Step 2:

[0027] The first connecting port of the first reinforcement mechanism and the second reinforcement mechanism is sleeved with the first steel bar, and the second connecting port of the first reinforcement mechanism and the second reinforcement mechanism is sleeved with the second steel bar;

[0028] Step 3:

[0029] The screw is passed through the screw hole to penetrate the first reinforcement mechanism and the second reinforcement mechanism, and the nut is threadedly connected to the screw to connect and fix the first reinforcement mechanism and the second reinforcement mechanism. The stop plate is used to drive the first reinforcement to move upward relative to the reinforcement mechanism and the second reinforcement to move outward relative to the reinforcement mechanism;

[0030] When the second steel bar moves outward relative to the reinforcement mechanism, the wheel assembly inside the annular bag of the pressure body moves inward relative to the floor slab, indirectly squeezing the second sealing arc sheet, causing the sealing body to expand outward until the first sealing arc sheet is in contact with the top surface of the exterior wall PC component plate. As the movement continues, the middle part of the first sealing arc sheet gradually expands from its original concave shape to the maximum angle and remains in the concave shape. Due to the applied force, the second sealing arc sheet continues to shrink from its original concave shape, and its free end always contacts the top surface of the exterior wall PC component plate, forcing the pre-compression sheet to accumulate and transform from its original linear shape to a curved shape, thereby forming multiple sealing shapes between the floor slab and the exterior wall PC component plate.

[0031] Step 4:

[0032] pouring concrete to form the first reinforcement layer;

[0033] Step 5:

[0034] Apply a waterproof layer on top of the first reinforcement layer and the fixing frame to ensure the waterproof effect of the joint;

[0035] Step 6:

[0036] Pour concrete to form the second reinforcement layer.

[0037] 3. Technical effects of applying this solution

[0038] 1. The first reinforcement mechanism and the second reinforcement mechanism can be sleeved with the first reinforcement mechanism and the second reinforcement mechanism, and the relative positions of the first reinforcement mechanism and the second reinforcement mechanism can be fixed by nuts and screws.

[0039] 2. The first reinforcement mechanism and the second reinforcement mechanism make the connection between the exterior wall PC component plate and the floor slab more stable. The first reinforcement layer makes the connection between the first reinforcement mechanism and the second reinforcement mechanism and the exterior wall PC component plate and the floor slab more stable. The waterproof layer can prevent rainwater from seeping into the connection between the exterior wall PC component plate and the floor slab. The second reinforcement layer can make the connection between the exterior wall PC component plate and the floor slab more stable through the lifting plate, and prevent the connection between the exterior wall PC component plate and the floor slab from cracking.

[0040] 3. The first reinforcement mechanism and the second reinforcement mechanism are installed through the stop plates on them, so that the first reinforcement and the second reinforcement are more tightly connected. When the first reinforcement mechanism and the second reinforcement mechanism are assembled using screws and nuts, they can be pulled to ensure structural strength.

[0041] 4. During the pulling process, the floor slab can be driven gradually closer to the exterior wall PC component board, so that the pressure body squeezes the sealing body and forms a sealing structure between the top of the exterior wall PC component board and the bottom of the floor slab, completing the sealing and preventing leakage, and ensuring the structural strength of the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 This is a schematic structural diagram of the first reinforcement mechanism of the present invention;

[0044] Figure 3 Schematic diagram of the structure of the second reinforcement mechanism of the present invention;

[0045] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0046] Figure 5 This is a schematic diagram of the structure of the present invention in use state;

[0047] Figure 6 for Figure 5 A partial enlarged view of the installation position of the middle seal and the sliding vane;

[0048] Figure 7 for Figure 6Structural diagram of the middle sealing body in a sealed state under the action of the pressure body;

[0049] Figure 8 for Figure 7 Structural diagram when the pressure body does not act on the sealing body;

[0050] Figure 9 This is a structural distribution diagram of the retaining piece in the connection port of the first reinforcement mechanism and the second reinforcement mechanism of the present invention.

[0051] In the figure: 1 first reinforcement mechanism, 2 second reinforcement mechanism, 201 fixing frame, 202 screw hole, 203 first connection port, 204 second connection port, 205 fixing rod, 206 connection rod, 207 plate column, 208 lifting plate, 3 exterior wall PC component plate, 301 first steel bar, 4 floor slab, 401 second steel bar, 5 first reinforcement layer, 6 waterproof layer, 7 second reinforcement layer, 8 sliding plate, 9 sealing member, 91 pressure body, 911 annular bag, 912 wheel assembly, 92 sealing body, 921 sealing arc thin sheet 1, 922 sealing arc thin sheet 2, 923 pre-compression sheet, 11 nut, 12 screw. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0053] See also Figure 1-5 The prefabricated building exterior wall PC component and floor slab node reinforcement assembly includes a first reinforcement mechanism 1 and a second reinforcement mechanism 2. The exterior of the first reinforcement mechanism 1 and the second reinforcement mechanism 2 are provided with an exterior wall PC component plate 3 and a floor slab 4.

[0054] Specifically, the interior of the exterior wall PC component plate 3 is connected to the first steel bar 301, the interior of the floor slab 4 is connected to the second steel bar 401, and the interior of the fixing frame 201 is provided with a first connection port 203 and a second connection port 204. The structure of the first reinforcement mechanism 1 is consistent with the structure of the second reinforcement mechanism 2. The directions of the first connection port 203 and the second connection port 204 of the first reinforcement mechanism 1 are opposite to the directions of the first connection port 203 and the second connection port 204 of the second reinforcement mechanism 2. The position of the first connection port 203 corresponds to the position of the first steel bar 301, and the position of the second connection port 204 corresponds to the position of the second steel bar 401. Therefore, the first connection port 203 of the first reinforcement mechanism 1 and the second reinforcement mechanism 2 can be socketed with the first steel bar 301, and the second connection port 204 of the first reinforcement mechanism 1 and the second reinforcement mechanism 2 can be socketed with the second steel bar 401, and the lower wall of the fixing frame 201 is in contact with the exterior wall PC component plate 3, and the side wall of the fixing frame 201 is in contact with the floor slab 4.

[0055] Specifically, the first reinforcement mechanism 1 and the second reinforcement mechanism 2 are internally connected with a screw, and the outside of the screw is connected with a nut. The second reinforcement mechanism 2 includes a fixing frame 201, the fixing frame 201 is L-shaped, and the fixing rod 205 is connected to the inner side of the fixing frame 201. The fixing frame 201 and the fixing rod 205 are combined to form an equilateral right triangle. Screw holes 202 are opened inside the fixing frame 201, and the screw holes 202 are equidistantly distributed. The position of the screw hole 202 of the first reinforcement mechanism 1 corresponds to the position of the screw hole 202 of the second reinforcement mechanism 2, so that the screw can pass through the screw hole 202 to pass through the first reinforcement mechanism 1 and the second reinforcement mechanism 2, and the nut is threadedly connected to the screw.

[0056] Specifically, concrete is poured to form a first reinforcement layer 5 , the outer wall of the first reinforcement layer 5 is flush with the fixing frame 201 , and the first reinforcement layer 5 makes the connection between the first reinforcement mechanism 1 and the second reinforcement mechanism 2 and the exterior wall PC component plate 3 and the floor slab 4 more stable.

[0057] Specifically, a waterproof layer 6 is coated on the first reinforcement layer 5 and the fixing frame 201 , and the waterproof layer 6 can prevent rainwater from penetrating into the connection between the exterior wall PC component board 3 and the floor slab 4 .

[0058] Specifically, concrete is poured to form a second reinforcement layer 7, and the second reinforcement layer 7 is located above the waterproof layer 6. The connecting rod 206 of the first reinforcement mechanism 1 is located at the lower end of the fixed rod 205, and the connecting rod 206 of the second reinforcement mechanism 2 is located at the upper end of the fixed rod 205. A first reinforcement mechanism 1 and a second reinforcement mechanism 2 form a group, the connecting rod 206 is ninety degrees to the fixed rod 205, the plate column 207 is ninety degrees to the horizontal plane, and there are no less than three rows of lifting plates 208, and the three rows of lifting plates 208 are distributed at intervals, and there are no less than three lifting plates 208 in one row. The second reinforcement layer 7 can make the connection between the exterior wall PC component plate 3 and the floor slab 4 more stable through the lifting plate 208, and prevent cracking at the connection between the exterior wall PC component plate 3 and the floor slab 4.

[0059] More specifically, Figure 9 As shown, the first connection port 203 and the second connection port 204 are provided with a stopper 209 inside, which is used to pull the corresponding steel bars. The stopper 209 can ensure the connection strength and stability between the floor slab 4 and the exterior wall PC component plate 3.

[0060] More specifically, Figures 6 to 8 As shown, a slide 8 is installed at the bottom of the floor slab 4 near the side edge and at the top of the exterior wall PC component plate 3 corresponding to one side of the floor slab 4;

[0061] A sealing member 9 is also installed under the floor slab 4. The sealing member 9 is located on the side of the sliding plate 8 away from the exterior wall PC component plate 3.

[0062] The sealing member 9 includes a pressure-applying body 91 fixedly mounted on the floor 4 and a sealing body 92 located on a side away from the pressure-applying body 91. The sealing body 92 includes a sealing arc-shaped sheet 1 921, a sealing arc-shaped sheet 2 922, and a pre-compression sheet 923 connected between the sealing arc-shaped sheet 1 921 and the sealing arc-shaped sheet 2 922. One end of the sealing arc-shaped sheet 1 921 and the sealing arc-shaped sheet 2 922 is mounted on the floor 4, and the other end is freely set. The pressure-applying body 91 includes an annular bag 911 and a wheel assembly 912 located inside the annular bag 911. When the two sliding sheets 8 are in contact, the annular bag 911 is pressed against the exterior wall PC component plate 3. When the second steel bar 401 moves outward relative to the reinforcement mechanism, the wheel assembly 912 inside the annular bag 911 of the pressure body 91 moves inward relative to the floor slab 4, indirectly squeezing the sealing arc sheet 2 922, so that the sealing body 92 expands outward until the sealing arc sheet 1 921 is in contact with the top surface of the exterior wall PC component plate 3. As the movement continues, the middle part of the sealing arc sheet 1 921 gradually expands from the original concave shape to the maximum angle, and remains in the concave shape. Due to the force applied to it, the sealing arc sheet 2 922 continues to shrink from the original concave shape, and the free end always fits the top surface of the exterior wall PC component plate 3, forcing the pre-compression sheet 923 to accumulate, and change from the original linear shape to a curved shape, forming multiple sealing shapes between the floor slab 4 and the exterior wall PC component plate 3.

[0063] See also Figure 1-5 A method for reinforcing the top of a prefabricated building exterior wall PC component comprises the following steps:

[0064] Step 1:

[0065] Place the floor slab 4 on top of the exterior wall PC component plate 3 so that the two slides 8 are attached to each other. At this time, the pressure body 91 is attached to the top of the exterior wall PC component plate 3.

[0066] Step 2:

[0067] The first connecting openings 203 of the first reinforcement mechanism 1 and the second reinforcement mechanism 2 are sleeved with the first reinforcement 301 , and the second connecting openings 204 of the first reinforcement mechanism 1 and the second reinforcement 2 are sleeved with the second reinforcement 401 ;

[0068] Step 3:

[0069] The screw is passed through the screw hole 202 to penetrate the first reinforcement mechanism 1 and the second reinforcement mechanism 2. The nut is threadedly connected to the screw to connect and fix the first reinforcement mechanism 1 and the second reinforcement mechanism 2. The stop plate 209 is used to drive the first reinforcement 301 to move upward relative to the reinforcement mechanism and the second reinforcement 401 to move outward relative to the reinforcement mechanism.

[0070] When the second steel bar 401 moves outward relative to the reinforcement mechanism, the wheel assembly 912 inside the annular bag 911 of the pressure body 91 moves inward relative to the floor slab 4, indirectly squeezing the second sealing arc-shaped sheet 922, causing the sealing body 92 to expand outward until the first sealing arc-shaped sheet 921 is in contact with the top surface of the exterior wall PC component plate 3. As the movement continues, the middle part of the first sealing arc-shaped sheet 921 gradually expands from its original concave shape to a maximum angle and remains in the concave shape. Due to the force applied, the second sealing arc-shaped sheet 922 continues to shrink from its original concave shape, and its free end always contacts the top surface of the exterior wall PC component plate 3, forcing the pre-compression sheet 923 to accumulate and change from its original linear shape to a curved shape, thereby forming multiple sealing shapes between the floor slab 4 and the exterior wall PC component plate 3.

[0071] Step 4:

[0072] pouring concrete to form a first reinforcement layer 5;

[0073] Step 5:

[0074] A waterproof layer 6 is applied on the first reinforcement layer 5 and the fixing frame 201 to ensure a waterproof effect at the joint;

[0075] Step 6:

[0076] The second reinforcement layer 7 is formed by pouring concrete.

[0077] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0078] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated building exterior wall PC component and floor slab node reinforcement assembly, comprising a first reinforcement mechanism (1) and a second reinforcement mechanism (2), characterized in that: External wall PC component panels (3) and floor panels (4) are provided outside the first reinforcement mechanism (1) and the second reinforcement mechanism (2); The interior of the exterior wall PC component plate (3) is connected to a first steel bar (301), and the interior of the floor slab (4) is connected to a second steel bar (401); A first reinforcement layer (5) is provided above the exterior wall PC component plate (3), a waterproof layer (6) is provided on the outside of the first reinforcement mechanism (1) and the second reinforcement mechanism (2), and a second reinforcement layer (7) is provided above the exterior wall PC component plate (3) and the floor slab (4); The first reinforcement mechanism (1) and the second reinforcement mechanism (2) are internally connected with screw rods, and the exteriors of the screw rods are externally connected with nuts; The structure of the first reinforcement mechanism (1) is consistent with the structure of the second reinforcement mechanism (2), the second reinforcement mechanism (2) comprises a fixing frame (201), a screw hole (202) is provided inside the fixing frame (201), a first connection port (203) and a second connection port (204) are provided inside the fixing frame (201), a fixing rod (205) is connected to one side of the fixing rod (205), a connecting rod (206) is connected to one end of the connecting rod (206), a plate column (207) is connected to the outside of the plate column (207), and a lifting plate (208) is connected to the outside of the plate column (207); The directions of the first connection port (203) and the second connection port (204) of the first reinforcement mechanism (1) are opposite to the directions of the first connection port (203) and the second connection port (204) of the second reinforcement mechanism (2); the position of the first connection port (203) corresponds to the position of the first steel bar (301); and the position of the second connection port (204) corresponds to the position of the second steel bar (401); A stopper (209) is provided inside the first connection port (203) and the second connection port (204), and the stopper (209) is used to pull the corresponding steel bars.

2. The prefabricated building exterior wall PC component and floor slab node reinforcement assembly according to claim 1, characterized in that: The fixing frame (201) is L-shaped, the fixing rod (205) is connected to the inner side of the fixing frame (201), and the fixing frame (201) and the fixing rod (205) are combined to form an equilateral right triangle.

3. The prefabricated building exterior wall PC component and floor slab node reinforcement assembly according to claim 2, characterized in that: The screw holes (202) are distributed at equal intervals, the positions of the screw holes (202) of the first reinforcement mechanism (1) correspond to the positions of the screw holes (202) of the second reinforcement mechanism (2), the screw rod passes through the first reinforcement mechanism (1) and the second reinforcement mechanism (2) through the screw holes (202), and the nut is threadedly connected to the screw rod.

4. The prefabricated building exterior wall PC component and floor slab node reinforcement assembly according to claim 3 is characterized by: The lower wall of the fixing frame (201) is in contact with the exterior wall PC component plate (3), and the side wall of the fixing frame (201) is in contact with the floor slab (4).

5. The prefabricated building exterior wall PC component and floor slab node reinforcement assembly according to claim 4, characterized in that: The connecting rod (206) of the first reinforcement mechanism (1) is located at the lower end of the fixed rod (205), and the connecting rod (206) of the second reinforcement mechanism (2) is located at the upper end of the fixed rod (205). One first reinforcement mechanism (1) and one second reinforcement mechanism (2) form a group.

6. The prefabricated building exterior wall PC component and floor slab node reinforcement assembly according to claim 5, characterized in that: The connecting rod (206) is at a ninety-degree angle to the fixing rod (205), the plate column (207) is at a ninety-degree angle to the horizontal plane, the lifting plates (208) are at least three rows, the three rows of lifting plates (208) are spaced apart, and one row has at least three lifting plates (208).

7. The prefabricated building exterior wall PC component and floor slab node reinforcement assembly according to claim 6, characterized in that: The outer wall of the first reinforcement layer (5) is flush with the fixing frame (201), the waterproof layer (6) is located above the first reinforcement layer (5) and the fixing frame (201), the second reinforcement layer (7) is located above the waterproof layer (6), and the lifting plate (208) is located inside the second reinforcement layer (7).

8. The prefabricated building exterior wall PC component and floor slab node reinforcement assembly according to claim 7, characterized in that: Slides (8) are installed at the bottom of the floor slab (4) near the side edge and at the top of the exterior wall PC component plate (3) on one side of the floor slab (4); A sealing member (9) is also installed below the floor slab (4), and the sealing member (9) is located on the side of the sliding plate (8) away from the exterior wall PC component plate (3); The sealing member (9) includes a pressure-applying body (91) fixedly mounted on the floor slab (4) and a sealing body (92) located on a side away from the pressure-applying body (91); the sealing body (92) includes a sealing arc-shaped thin sheet 1 (921), a sealing arc-shaped thin sheet 2 (922), and a pre-pressing sheet (923) connected between the sealing arc-shaped thin sheet 1 (921) and the sealing arc-shaped thin sheet 2 (922); one end of the sealing arc-shaped thin sheet 1 (921) and the sealing arc-shaped thin sheet 2 (922) is mounted on the floor slab (4), and the other end is freely arranged; the pressure-applying body (91) includes an annular bag (911) and a wheel assembly (912) located inside the annular bag (911); when the two sliding sheets (8) are in contact, the annular bag (911) is pressed onto the exterior wall PC component plate (3).

9. A method for reinforcing the top of a prefabricated building exterior wall PC component, characterized in that: The use of the prefabricated building exterior wall PC component and floor slab node reinforcement assembly as claimed in claim 8 includes the following steps: Step 1: Placing the floor slab (4) above the exterior wall PC component plate (3) so that the two slides (8) are in contact with each other, and the pressure-applying body (91) is in contact with the exterior wall PC component plate (3); Step 2: The first connection ports (203) of the first reinforcement mechanism (1) and the second reinforcement mechanism (2) are sleeved with the first reinforcement bar (301), and the second connection ports (204) of the first reinforcement mechanism (1) and the second reinforcement mechanism (2) are sleeved with the second reinforcement bar (401); Step 3: The screw rod is passed through the screw hole (202) and penetrates the first reinforcement mechanism (1) and the second reinforcement mechanism (2). The nut is threadedly connected to the screw rod to connect and fix the first reinforcement mechanism (1) and the second reinforcement mechanism (2). The stop plate (209) is used to drive the first reinforcement bar (301) to move upward relative to the reinforcement mechanism and the second reinforcement bar (401) to move outward relative to the reinforcement mechanism. When the second steel bar (401) moves outward relative to the reinforcing mechanism, the wheel assembly (912) inside the annular bag (911) of the pressure body (91) moves inward relative to the floor slab (4), indirectly squeezing the second sealing arc-shaped sheet (922), so that the sealing body (92) expands outward until the first sealing arc-shaped sheet (921) is attached to the top surface of the external wall PC component plate (3). As the movement continues, the middle part of the first sealing arc-shaped sheet (921) gradually expands from the original concave shape to the maximum angle and remains in the concave shape. Due to the force applied, the second sealing arc-shaped sheet (922) continues to shrink from the original concave shape, and the free end always adheres to the top surface of the external wall PC component plate (3), forcing the pre-compression sheet (923) to accumulate, and change from the original linear shape to the curved shape, forming a multiple sealing shape between the floor slab (4) and the external wall PC component plate (3); Step 4: pouring concrete to form a first reinforcement layer (5); Step 5: A waterproof layer (6) is applied above the first reinforcement layer (5) and the fixing frame (201) to ensure a waterproof effect at the joint; Step 6: Concrete is poured to form the second reinforcement layer (7).

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