A connection structure for windows between PC external wall panels

Abstract

This application relates to a connection structure for a PC external wall panel window, including a wall panel, a subframe, and a window frame. The window frame includes an upper horizontal bar, vertical sections connected to both ends of the upper horizontal bar, and a lower horizontal bar connected between the two vertical sections. A core sleeve is provided at the bottom of each opposite side of the wall panel. Insert cavities for inserting the core sleeve are provided at both ends of the lower horizontal bar. Connecting bolts passing through both sides of the lower horizontal bar are provided on the lower horizontal bar, and connecting nuts are threaded onto the connecting bolts. The core sleeve has a through hole for the connecting bolt to pass through; the diameter of the through hole is larger than the diameter of the connecting bolt, and the cross-sectional dimension of the core sleeve is smaller than the size of the insert cavity. An elastic connector is provided between the vertical section and the adjacent subframe. When the wall panel shifts, the core sleeve can move first within the cavity of the lower horizontal bar, thus preventing the wall panel from directly impacting the window frame during shift. This allows the core sleeve to adapt to the wall panel shift distance and ensures the stability of the airtightness and watertightness between the wall panel and the window frame during wall panel shift.

Description

Technical Field

[0001] The present application relates to the field of prefabricated buildings, and in particular to a connection structure of windows between panels of PC external wall panels. Background Art

[0002] At present, as a new type of green and environmentally friendly building, prefabricated buildings are produced in factories and constructed in a prefabricated manner. They have the characteristics of fast installation and easy maintenance, so they are vigorously developed by the country. In prefabricated buildings, PC external wall panels are usually used as walls, and the PC external wall panels are installed on the main structure through a mechanical connection structure.

[0003] Buildings all have lighting requirements, so prefabricated buildings also need to install windows to improve the lighting and ventilation of the building. Some conventional methods usually preset cavities on the wall panels, and then install window frames in the cavities. In this method, the windows are located on the panels.

[0004] Reference Figure 1 In some other projects, the external wall panels are connected to the main structure as a whole wall panel 1, and a certain space is left between some adjacent wall panels 1 for installing window frames 3, so that the external windows and wall panels are separated.

[0005] With respect to the above-mentioned related technologies, the inventor believes that when the wall panel is a complete wall panel, and the external window is installed in the space between adjacent wall panels. Figure 2 Since the window frame 3 is directly connected between the wall panels 1, under the influence of typhoons, earthquakes, etc., the wall panels 1 and the main structure will be offset to a certain extent or even slightly deflected. The wall panels 1 themselves are heavy, and the force generated by the offset of the wall panels 1 directly acts on the window frame 3, making the window frame 3 easy to deform and even causing the glass to be crushed. Summary of the invention

[0006] In order to improve the ability of the external window to adapt to the displacement of the wall panel and the main body, the present application provides a connection structure for the windows between the PC external wall panels.

[0007] The present application provides a PC external wall panel window connection structure using the following technical solutions:

[0008] A connection structure for windows between boards of PC external wall panels, comprising a wall panel, an auxiliary frame and a window frame, wherein a space for installing the window frame is reserved between the wall panels, the auxiliary frame is pre-buried in one side opposite to the wall panel and is vertically arranged, the window frame comprises an upper cross bar, a vertical section connected to the two ends of the upper cross bar and a lower cross bar connected between the lower ends of the two vertical sections, the upper cross bar, the vertical section and the lower cross bar form a space for installing glass, the bottom of the opposite side of the wall panel is provided with a core sleeve, the two ends of the lower cross bar are provided with an insertion cavity for the core sleeve to be plugged in, the lower cross bar is provided with connecting bolts passing through both sides of the lower cross bar, the connecting bolts are threadedly connected with connecting nuts, the core sleeve is provided with a through hole for the connecting bolt to pass through, the diameter of the through hole is larger than the diameter of the connecting bolt, the cross-sectional size of the core sleeve is smaller than the size of the insertion cavity, and an elastic connecting piece is provided between the vertical section and the adjacent auxiliary frame.

[0009] By adopting the above technical solution, the window frame is connected with the auxiliary frame through the elastic connector, the core sleeve is inserted into the insertion cavity at both ends of the lower cross bar, and the connecting bolt passes through the lower cross bar and the core sleeve at the same time. The diameter of the hole on the core sleeve for the connecting bolt to pass through is larger than the diameter of the connecting bolt. Normally, the connecting bolt abuts against the lower end of the hole, so that the core sleeve can support the window frame. When the wall panel is displaced, the core sleeve moves with the wall panel. Since the size of the hole is larger than the size of the connecting bolt, space is provided for the core sleeve to move, so that the wall panel will not directly act on the window frame when it is offset, thereby improving the deformation resistance of the window frame. In addition, the two vertical sections of the window frame are connected to the wall panel through the elastic connector, so that the wall panel will not directly act on the vertical section of the window frame when it is offset.

[0010] Optionally, the elastic connecting member includes a fastener connected to the auxiliary frame, and a plurality of the fasteners are arranged at intervals along the vertical direction of the auxiliary frame. The fastener includes a connecting plate connected to the auxiliary frame, and also includes extension plates arranged at both ends of the connecting plate. The two extension plates are flared in a direction away from the auxiliary frame, and an insertion interface is provided at one end of the extension plate away from the connecting plate, and the opening directions of the insertion interface are opposite to each other. A connecting cavity is provided on a side of the vertical section close to the auxiliary frame, and a connecting strip that can be snapped into the insertion interface is provided on the opposite side of the connecting cavity.

[0011] By adopting the above technical solution, the fastener includes a connecting plate and an extension plate connected to both ends of the connecting plate. The extension plate forms a flared structure and faces the window frame, so that the extension plate has a certain elasticity. A plug-in strip is installed on the inner wall of the connecting cavity, and the plug-in strip is plugged into the plug port, so as to connect the vertical section and the fastener together, and then connect the vertical section to the wall panel.

[0012] Optionally, the wall panel is provided with a surface layer on both side walls of the fastener, and a space for filling with a foaming agent is formed between the surface layer and the connecting cavity.

[0013] By adopting the above technical solution, by filling the connection cavity and the space between the two surface layers with a foaming agent, the sealing performance is improved while the elasticity is also improved.

[0014] Optionally, a plurality of reinforcing plates are provided on a side of the auxiliary frame away from the fastener, the reinforcing plates are arranged at intervals along the vertical direction of the auxiliary frame, and the reinforcing plates are integrally bent to form an opening, and the opening faces in a direction away from the auxiliary frame.

[0015] By adopting the above technical solution, the connection force between the auxiliary frame and the wall panel can be improved under the action of the reinforcing plate, so that the auxiliary frame is more stable.

[0016] Optionally, the reinforcing plate is provided with positioning bolts, and the connecting plate is also provided with positioning bolts, and both the reinforcing plate and the connecting plate are fixed to the auxiliary frame by the positioning bolts.

[0017] By adopting the above technical solution, the connecting plate and the reinforcing plate are connected to the auxiliary frame by positioning bolts, which makes installation convenient and construction faster.

[0018] Optionally, the auxiliary frame is configured as a hollow structure.

[0019] By adopting the above technical solution, a hollow part is provided in the auxiliary frame, thereby improving the deformation capacity of the auxiliary frame and reducing the pressure on the window frame caused by the displacement of the wall panel.

[0020] Optionally, embedded reinforcement is embedded in the wall panel, a fixing plate is provided at one end of the embedded reinforcement, and the core sleeve is fixedly connected to the fixing plate.

[0021] By adopting the above technical solution, the core sleeve is fixed on the fixing plate, and the fixing plate is pre-buried in the wall panel, so that the core sleeve connection is stable and has a good supporting effect on the lower cross bar.

[0022] Optionally, the embedded reinforcement is a threaded reinforcement, and the embedded reinforcement is fixed to the fixing plate by welding.

[0023] By adopting the above technical solution, the acting force between the embedded reinforcement and the concrete in the wall panel is increased, thereby improving the pull-out resistance of the embedded reinforcement. The welding fixation method can improve the stability of the connection between the embedded reinforcement and the fixing plate.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The window frame includes an upper crossbar, a lower crossbar and vertical sections on both sides, thereby enclosing a space for installing glass. A core sleeve that can be inserted into the insertion cavity at both ends of the lower crossbar is fixed on the wall panel. The size of the perforation on the core sleeve is larger than the size of the connecting bolt. The core sleeve can support the lower crossbar, and the lower crossbar serves as a support to support the entire window body. When the wall panel deviates horizontally or outwardly or inwardly, the perforation provides space for the core sleeve to move in the insertion cavity, so that the deflection of the wall panel will not directly act on the window frame, thereby increasing the window frame's ability to adapt to the deflection distance of the wall panel; the two vertical sections of the window frame are connected to the auxiliary frame through elastic connectors, thereby further reducing the force acting on the vertical sections by the wall panel when the wall panel deviates;

[0026] 2. The elastic connector includes a fastener, and two extension plates on the fastener form a flared structure. The extension plate has a certain elasticity. The vertical section is installed by plugging it into the plug-in interface through a plug-in strip, so that there is a certain elasticity between the wall panel and the vertical section. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the connection between the wall panel and the window frame;

[0028] Figure 2 It is a schematic diagram of the connection structure between the wall panel and the window frame after the wall panel is offset;

[0029] Figure 3 It is a schematic diagram of the structure of an embodiment of the present application;

[0030] Figure 4 yes Figure 3 Schematic cross-sectional view at AA in the middle;

[0031] Figure 5 yes Figure 3 A schematic cross-sectional view of the middle BB;

[0032] Figure 6 yes Figure 5 The enlarged view of point A in the middle;

[0033] Figure 7 yes Figure 3 Schematic cross-sectional view at CC in the middle;

[0034] Figure 8 yes Figure 7 The enlarged view of point B in the middle;

[0035] Fig. 9 It is a schematic diagram of the connection structure between the core sleeve and the lower cross bar.

[0036] Explanation of the reference numerals in the accompanying drawings: 1. wall panel; 2. auxiliary frame; 3. window frame; 31. upper cross bar; 32. lower cross bar; 33. vertical section; 4. core sleeve; 5. insertion cavity; 6. connecting bolt; 7. connecting nut; 8. perforation; 9. elastic connector; 10. fastener; 101. connecting plate; 102. extension plate; 11. plug interface; 12. connecting cavity; 13. plug-in strip; 14. surface layer; 15. reinforcing plate; 16. positioning bolt; 18. embedded reinforcement; 19. fixing plate; 21. glass; 22. elastic waterproof layer. DETAILED DESCRIPTION

[0037] The following is combined with Figure 3-9 This application is described in further detail.

[0038] The present application embodiment discloses a PC external wall panel window connection structure. Figure 3 and Figure 4 The connection structure includes a wall panel 1, an auxiliary frame 2 and a window frame 3. A space for installing the window frame 3 is reserved between the wall panels 1. The wall panel 1 is an integral structure, and the height of each floor is the height of the wall panel 1. When the window frame 3 is installed between the wall panels 1, a through window is formed on each floor. The auxiliary frame 2 is embedded in the wall panel 1 when the wall panel 1 is prefabricated, and the auxiliary frame 2 is arranged vertically. The window frame 3 is used to install the glass 21, and then the window frame 3 is connected to the auxiliary frame 2 during installation.

[0039] Reference Figure 3 The window frame 3 includes an upper cross bar 31, a lower cross bar 32 and two vertical sections 33 connected between the upper cross bar 31 and the lower cross bar 32. The upper cross bar 31, the lower cross bar 32 and the vertical sections 33 form a square structure. The glass 21 is installed in the space enclosed by them, and the glass 21 is sealed at the connection when installed.

[0040] Reference Figure 5 and Figure 6 , a core sleeve 4 is fixed on each side of the wall panel 1, combined with Figure 7 , Figure 5 The cross-sectional view of the connection between the cross bar 32 and the core sleeve 4 is shown in FIG. The two end surfaces of the lower cross bar 32 are provided with a plug-in cavity 5 for the core sleeve 4 to be plugged in. The core sleeve 4 has been hot-dip galvanized and is a square tube structure. The cross-sectional size of the core sleeve 4 is smaller than the cross-sectional size of the plug-in cavity 5, so that there is a certain gap between the core sleeve and the inner wall of the plug-in cavity 5.

[0041] Reference Figure 8The lower cross bar 32 is provided with connecting bolts 6 on both sides, and the core sleeve 4 is provided with a through hole 8 for the connecting bolts 6 to pass through, and the diameter of the through hole 8 is larger than the diameter of the connecting bolt 6. There are multiple connecting bolts 6, and at least two connecting bolts 6 are passed through each core sleeve 4. A connecting nut 7 is threadedly connected to one end of the connecting bolt 6, so that the connecting bolt 6 is not easy to be separated from the lower cross bar 32. Since the through hole 8 is larger than the size of the connecting bolt 6, the core sleeve 4 has a certain movement space.

[0042] Reference Figure 4 An elastic connector 9 is also installed between the vertical section 33 and the adjacent auxiliary frame 2, so that the core sleeve 4 can support the lower cross bar 32, thereby supporting the entire window frame 3, and then the vertical section 33 is connected to the auxiliary frame 2 through the elastic connector 9, thereby connected to the wall panel 1.

[0043] Reference Fig. 9 , embedded reinforcement 18 is embedded in the wall panel 1. The embedded reinforcement 18 is fixed to the steel bar template of the wall panel 1 during the prefabrication process of the wall panel 1, and one end of the embedded reinforcement 18 is fixed to a fixing plate 19. The surface of the fixing plate 19 is flush with the surface of the wall panel 1. One end of the core sleeve 4 is fixedly connected to the fixing plate 19. The core sleeve 4 can be fixedly connected to the fixing plate 19 by welding or other methods. In order to improve the pull-out resistance of the embedded reinforcement 18, the embedded reinforcement 18 is a threaded steel bar, which is directly welded or fixed to the fixing plate 19 by perforation plug welding. The core sleeve 4 is inserted into the insertion cavity 5, and the connecting bolt 6 is passed through the perforation 8. When the wall panel 1 is offset, the diameter of the perforation 8 is larger than the diameter of the connecting bolt 6, thereby providing space for the core sleeve to move in the insertion cavity 5, so that the wall panel 1 will not directly act on the window frame 3 when it is offset, thereby increasing the displacement distance of the wall panel 1 that the window frame 3 can adapt to.

[0044] Reference Figure 5 Furthermore, the inner cavity of the core sleeve 4 and the gap between the inner wall of the core sleeve 4 and the insertion cavity 5 are filled with a foaming agent or a sealant. The foaming agent can play a role in assisting the connection and also has a certain sealing and elasticity and will not affect the movement of the core sleeve 4.

[0045] Reference Figure 3 and Figure 4The elastic connector 9 includes a fastener 10 connected to the attachment frame 2, and the fastener 10 includes a connecting plate 101 and an extension plate 102 connected to both ends of the connecting plate 101. The extension plate 102 and the connecting plate 101 form a flared structure, and the flaring direction is away from the adjacent attachment frame 2. A plurality of fasteners 10 are arranged at intervals along the length direction of the attachment frame 2, and the interval can be arranged one every 400mm, and can also be adjusted according to the height of the corresponding floor. A connecting cavity 12 is arranged on the side of the vertical section 33 close to the attachment frame 2, and plug-in strips 13 are fixed on the inner walls opposite to each other of the connecting cavity 12. A plug-in port 11 is arranged on the side wall of the extension plate 102 away from the connecting plate 101, and the directions of the plug-in port 11 are opposite to each other. The plug-in strip 13 can be plugged into the plug-in port 11, thereby realizing the connection between the vertical section 33 and the attachment frame 2. A plurality of fasteners 10 are installed, so as to improve the connection strength of the vertical section 33. Under the action of the core sleeve 4 and the fastener 10 , the connection of the window frame 3 is completed.

[0046] Reference Figure 4 In order to improve the sealing of the connection between the fastener 10 and the vertical section 33, the wall panel 1 is provided with a surface layer 14 on both sides of the fastener 10. The surface layer 14 can be a plaster layer of mortar material. The space formed between the plaster layer and the connection cavity 12 and the wall panel 1 is filled with a foaming agent, and an elastic waterproof layer 22 is coated in the plaster layer to improve the waterproof ability of the plaster layer. In addition, the connection point between the vertical section 33 and the plaster layer is sealed with a weather-resistant sealant. Since the fastener 10 has a certain elasticity and the connection cavity 12 and the like are filled with a foaming agent, when the wall panel 1 is offset, the position of the fastener 10 and the foaming agent is first squeezed, and finally a force is applied to the window frame 3, thereby increasing the distance that the window frame 3 can adapt to the displacement of the wall panel 1.

[0047] Reference Figure 4 The attachment frame 2 is vertically arranged in the wall panel 1, and a plurality of reinforcing plates 15 are fixed on the side of the attachment frame 2 away from the fastener 10. The reinforcing plates 15 are integrally bent structures, and the reinforcing plates 15 enclose a shape with an opening, and the opening faces the direction away from the fastener 10. The opening of the reinforcing plates 15 can be in a constricted shape, and the connection strength between the attachment frame 2 and the wall panel 1 can be improved under the action of the reinforcing plates 15. The reinforcing plates 15 can be arranged at intervals along the vertical direction of the attachment frame 2, and the interval distance can be adjusted according to actual conditions.

[0048] Reference Figure 4 The reinforcing plate 15 and the connecting plate 101 are both provided with positioning bolts 16, and the positioning bolts 16 on the reinforcing plate 15 and the connecting plate 101 are simultaneously threadedly connected to the auxiliary frame 2 for fixing, and there is a spacing between the positioning bolts 16 of the two in the vertical direction. Further, the auxiliary frame 2 can be set as a hollow structure, so as to improve the deformation ability of the auxiliary frame 2.

[0049] The implementation principle of the connection structure of the inter-board window of a PC external wall panel 1 in the embodiment of the present application is as follows: the core sleeve 4 is inserted into the insertion cavity 5 at both ends of the lower cross bar 32, and the core sleeve 4 and the gap between the core sleeve 4 and the inner wall of the insertion cavity 5 are filled with a foaming agent. The size of the perforation 8 on the core sleeve 4 is larger than the size of the connecting bolt 6, so that the core sleeve 4 can move first in the insertion cavity 5 when the wall panel 1 is offset; in addition, the vertical sections 33 on both sides of the window frame 3 are connected to the auxiliary frame 2 through the fasteners 10, so that when the wall panel 1 is offset, the force is first applied to the fasteners 10. Under the synergistic effect of the core sleeve 4 and the fasteners 10, the offset distance of the window frame 3 to adapt to the wall panel 1 can be increased, and the window frame 3 and the window glass 21 can be reduced from being squeezed and broken.

[0050] 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 PC external wall panel window connection structure, characterized in that: The invention comprises a wall panel (1), an auxiliary frame (2) and a window frame (3), wherein a space for installing the window frame (3) is reserved between the wall panels (1), the auxiliary frame (2) is pre-buried in one side opposite to the wall panel (1), and the auxiliary frame (2) is arranged vertically, the window frame (3) comprises an upper cross bar (31), a vertical section (33) connected to both ends of the upper cross bar (31), and a lower cross bar (32) connected between the lower ends of the two vertical sections (33), the upper cross bar (31), the vertical section (33) and the lower cross bar (32) enclose a space for installing glass (21), the bottom of each side opposite to the wall panel (1) is provided with a core sleeve (4), the lower cross bar ( The two ends of the lower cross bar (32) are provided with insertion cavities (5) for inserting the core sleeve (4), the core sleeve (4) is hot-dip galvanized and has a square tube structure, the lower cross bar (32) is provided with connecting bolts (6) passing through the two sides of the lower cross bar (32), the connecting bolts (6) are threadedly connected with connecting nuts (7), the core sleeve (4) is provided with through holes (8) for the connecting bolts (6) to pass through, the diameter of the through holes (8) is larger than the diameter of the connecting bolts (6), the cross-sectional size of the core sleeve (4) is smaller than the size of the insertion cavity (5), and an elastic connecting piece (9) is provided between the vertical section (33) and the adjacent auxiliary frame (2).

2. A PC external wall panel window connection structure according to claim 1, characterized in that: The elastic connecting member (9) comprises a fastener (10) connected to the attached frame (2), a plurality of the fasteners (10) are arranged at intervals along the vertical direction of the attached frame (2), the fastener (10) comprises a connecting plate (101) connected to the attached frame (2), and also comprises extension plates (102) arranged at both ends of the connecting plate (101), the two extension plates (102) are flared in a direction away from the attached frame (2), the ends of the extension plates (102) away from the connecting plates (101) are each provided with a plug interface (11), the opening directions of the plug interface (11) are opposite to each other, a connecting cavity (12) is provided on a side of the vertical section (33) close to the attached frame (2), and a plug strip (13) capable of being snapped into the plug interface (11) is provided on a side opposite to the connecting cavity (12).

3. A PC external wall panel window connection structure according to claim 2, characterized in that: The wallboard (1) is provided with a surface layer (14) on both side walls of the fastener (10), and a space for filling a foaming agent is formed between the surface layer (14) and the connecting cavity (12).

4. The PC external wall panel window connection structure according to claim 2 is characterized in that: A plurality of reinforcing plates (15) are arranged on a side of the auxiliary frame (2) facing away from the fastener (10), the reinforcing plates (15) being arranged at intervals along the vertical direction of the auxiliary frame (2), the reinforcing plates (15) being integrally bent to form an opening, the opening facing in a direction away from the auxiliary frame (2).

5. The PC external wall panel window connection structure according to claim 4 is characterized in that: The reinforcing plate (15) is provided with a positioning bolt (16), and the connecting plate (101) is also provided with a positioning bolt (16). The reinforcing plate (15) and the connecting plate (101) are both fixed to the auxiliary frame (2) by the positioning bolt (16).

6. The PC external wall panel window connection structure according to claim 5, characterized in that: The auxiliary frame (2) is configured as a hollow structure.

7. The PC external wall panel window connection structure according to claim 4, characterized in that: Embedded reinforcement (18) is embedded in the wall panel (1), a fixing plate (19) is provided at one end of the embedded reinforcement (18), and the core sleeve (4) is fixedly connected to the fixing plate (19).

8. The PC external wall panel window connection structure according to claim 7, characterized in that: The embedded reinforcement (18) is a threaded reinforcement bar, and the embedded reinforcement (18) is fixed to the fixing plate (19) by welding.

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