A fabricated exterior wall system

Abstract

The application relates to an assembled outer wall system, which comprises a wallboard, a plug-in groove formed in a splicing end of the wallboard in the vertical direction, a flexible sealing plate vertically arranged between adjacent wallboards and capable of being plugged into the plug-in groove of the wallboard and matched with the plug-in groove when the adjacent wallboards relatively move to abut against each other, wherein the plug-in groove comprises a first straight line segment extending from the end face of the wallboard to the inside of the wallboard and an arc line segment located in the wallboard and communicated with one end of the first straight line segment located in the wallboard. The application can quickly realize splicing of the outer wallboard and improve the sealing effect of the splicing joint of the adjacent assembled outer wallboard.

Description

A prefabricated exterior wall system Technical Field

[0001] This application relates to the field of prefabricated buildings, and in particular to a prefabricated exterior wall system. Background Technology

[0002] Prefabricated exterior wall panels are a type of prefabricated building exterior wall panel. They are manufactured in a factory and then installed on-site. The advantages of this type of panel are fast installation, high construction quality, and fireproofing, waterproofing, and thermal insulation. The connection between adjacent prefabricated exterior wall panels generally uses two methods: chemical bonding and mechanical bonding. Chemical bonding involves filling the spaces between adjacent panels with concrete or special adhesives to connect them; this method is more complex and time-consuming. Mechanical bonding uses bolts, expansion bolts, and other mechanical structures to connect the panels; this method is simpler and faster.

[0003] While mechanical connections are faster than chemical connections, adjacent prefabricated exterior wall panels are typically connected by butt joints and bolts. Although this method connects adjacent panels, it often fails to guarantee the seal at the joint. To compensate for the shortcomings of mechanical seals, chemical connections are sometimes used after the panels are joined, such as on the outside of the joint of concrete-filled wall panels. However, with this method, the filler is only applied to the sides of the joint, leaving the inside of the joint still poorly sealed. After long-term use, if the filler on the outside of the joint cracks, the seal at the joint will be greatly reduced, making it very easy for leaks, such as water leakage, to occur at the joint of the prefabricated wall panels.

[0004] Therefore, there is an urgent need to provide a new method for connecting prefabricated exterior wall panels, so as to achieve rapid splicing of exterior wall panels while improving the sealing of the joints between adjacent prefabricated exterior wall panels. Summary of the Invention

[0005] In order to quickly achieve the splicing of exterior wall panels while improving the sealing of the splicing joints of adjacent prefabricated exterior wall panels, this application provides a prefabricated exterior wall system.

[0006] This application provides a prefabricated exterior wall system, which adopts the following technical solution:

[0007] A prefabricated exterior wall system, characterized in that it comprises:

[0008] Wall panels;

[0009] The interlocking groove is formed vertically at the splicing end of the wall panel;

[0010] A flexible sealing plate is vertically installed between adjacent wall panels. As the adjacent wall panels move relative to each other, they abut against each other at the splicing end. The end of the flexible sealing plate can be sealed and inserted into the insertion groove of the wall panel and is adapted to the insertion groove.

[0011] The insertion slot includes:

[0012] The first straight segment is formed by extending from the end face of the wall panel into the interior of the wall panel;

[0013] The curved segment is located inside the wall panel and is connected to the first straight segment at one end inside the wall panel.

[0014] By adopting the above technical solution, during operation, when the splicing ends of two adjacent wall panels are joined together, the end of the flexible sealing plate located between the two wall panels is inserted into the insertion groove of the wall panel. As the flexible sealing plate is inserted, it first enters the straight section of the insertion groove, and then bends along the arc section to fully fit the insertion groove. In this way, by setting the flexible sealing plate, the splicing and positioning of the two exterior wall panels are achieved, and the bent end of the flexible sealing plate blocks the position of the splicing joint, thus improving the overall sealing performance at the splicing joint of adjacent prefabricated exterior wall panels.

[0015] Optionally, the insertion slot further includes:

[0016] The second straight segment is located inside the wall panel and is connected to the end of the arc segment away from the first straight segment. The second straight segment and the first straight segment are located on the same side of the arc segment.

[0017] The flexible sealing plate has a connecting hole formed at its end;

[0018] The side of the wall panel is screwed with a locking bolt, and the end of the locking bolt passes perpendicularly through the second straight section of the insertion slot;

[0019] After the flexible sealing plate is inserted into the insertion slot, the locking bolt can pass through the connecting hole of the flexible sealing plate.

[0020] By adopting the above technical solution, during operation, the locking bolt is first pulled out. After the flexible sealing plate is inserted into the insertion groove, the end of the flexible sealing plate can bend along the trajectory of the insertion groove and be inserted into the second straight section of the insertion groove. Then, the locking bolt is passed through the wall panel, so that the end of the locking bolt passes through the connecting hole of the flexible sealing plate. This can achieve the fixation of the flexible sealing plate between adjacent wall panels and the connection of the two wall panels.

[0021] Optionally, the flexible sealing plate can be inserted into a portion of the arc segment with several receiving grooves.

[0022] A flexible tilting plate is provided inside the receiving groove;

[0023] The side of the elastic inverted plate opposite to the middle of the length direction of the flexible sealing plate is fixed to the flexible sealing plate, and the other side of the elastic inverted plate tends to bend away from the surface of the flexible sealing plate.

[0024] The arc segment of the insertion groove is formed with several slots. After the flexible sealing plate is inserted into the insertion groove, each of the elastic inverted plates can be inserted into each slot to prevent the flexible sealing plate from detaching from the insertion groove.

[0025] By adopting the above technical solution, when in use, after the end of the flexible sealing plate is inserted into the insertion groove, the elastic inverted plate will be squeezed by both sides of the insertion groove as the flexible sealing plate is inserted, thus keeping it in the same vertical plane as the flexible sealing plate. Then, as the flexible sealing plate continues to be inserted, until the position of the corresponding arc segment of the flexible sealing plate is inserted into the arc segment of the insertion groove, each elastic inverted plate will tend to bend away from the surface of the flexible sealing plate due to its own elasticity, thus being inserted into each slot. When the flexible sealing plate reverses and disengages from the insertion groove, each elastic inverted plate is stuck in the slot and cannot be withdrawn. In this state, the flexible sealing plate is fixed to the wall panel, thereby connecting adjacent wall panels.

[0026] Optionally, elastic sealing gaskets are formed on both sides of the straight section of the insertion groove to press against the opposite sides of the flexible sealing plate.

[0027] By adopting the above technical solution, the elastic sealing gasket used will seal the flexible sealing plate and the side wall of the insertion groove after the flexible sealing plate is inserted into the insertion groove, thereby achieving the sealing between the wall panel splice joint.

[0028] Optionally, the splicing end of the wall panel is formed with two insertion grooves;

[0029] The curved segments of the two insertion slots tend to bend in the opposite direction to the two straight segments.

[0030] By adopting the above technical solution, two insertion grooves are provided at the ends of the wall panels. During splicing, by inserting two flexible sealing plates between adjacent wall panels, the sealing performance between the splicing joints of adjacent wall panels can be further improved.

[0031] Optionally, the wall panel has a vertical notch formed at the position between the straight segments of the two insertion slots, and the notch communicates with the two insertion slots;

[0032] Also includes:

[0033] The clamping strip, with a width in the middle greater than its side width, is vertically inserted between the notches and grooves of adjacent wall panels. As the clamping strip is inserted into the notches and grooves on both sides, the clamping strip can compress the flexible sealing plate in the two insertion grooves at the same end of the wall panel.

[0034] By adopting the above technical solution, when splicing two wall panels, the clamping strip is placed between the splicing end faces of the wall panels. As the wall panels gradually approach each other, the flexible sealing plate is inserted into the interlocking groove, and at the same time, the side of the clamping strip is also inserted into the notch groove. Then, when the flexible sealing plate is fully inserted into the interlocking groove, the clamping strip will also press the flexible sealing plate located on both sides of the notch groove to the opposite side of the two interlocking grooves, thereby further improving the sealing performance between the flexible sealing plate and the interlocking groove, and ensuring the alignment of the two wall panels.

[0035] Optionally, a connecting component is provided between the clamping strip and the notch / groove of any wall panel for fixing the clamping strip in the notch / groove of any wall panel.

[0036] By adopting the above technical solution, during operation, firstly, one end of the two flexible sealing plates is inserted into the insertion groove of one wall panel. Then, one side of the clamping strip is inserted into the notch groove of the wall panel, and the clamping strip is fixed to the wall panel by the connecting component. Then, the two wall panels are spliced ​​together, and the other end of the two flexible sealing plates is inserted into the two insertion grooves of the other wall panel. The other side of the clamping strip will also be inserted into the notch groove of the other wall panel during the splicing process, thereby realizing the splicing and fixing of the two wall panels.

[0037] Optionally, the splicing ends of the wall panels are vertically formed with grooves;

[0038] The groove is sealed and fixed with a prefabricated box, and the insertion groove is formed inside the prefabricated box.

[0039] By adopting the above technical solution, during operation, the precast box with the interlocking groove can be sealed and fixed in the groove of the wall panel, so that the interlocking groove is formed at the splicing end of the wall panel.

[0040] Optionally, the precast box has a grouting groove formed on its outer side;

[0041] The wall panel has a grouting port, which is connected to the grouting groove.

[0042] By adopting the above technical solution, after the precast box is inserted into the wall panel, concrete grout can be injected into the grouting groove on the outside of the precast box inside the wall panel through the grouting port. After the grout solidifies, the precast box can be firmly fixed inside the wall panel, which facilitates the installation of the precast box.

[0043] Optionally, one splicing end of the wall panel is vertically formed with a socket;

[0044] The other splicing end of the wall panel is vertically formed with a socket for mating with the socket of the adjacent wall panel.

[0045] By adopting the above technical solution, the use of socket and spigot joints can further improve the alignment of the wall panel splicing ends and ensure the splicing accuracy of the wall panels.

[0046] In summary, this application includes at least one of the following beneficial technical effects:

[0047] 1. During operation, when the splicing ends of two adjacent wall panels are joined together, the end of the flexible sealing plate located between the two wall panels is inserted into the insertion groove of the wall panel. As the flexible sealing plate is inserted, it will first enter the straight section of the insertion groove, and then bend along the arc section to fully fit the insertion groove. In this way, by setting the flexible sealing plate, the splicing and positioning of the two exterior wall panels are achieved, and the bent end of the flexible sealing plate will block the position of the splicing joint, thus improving the overall sealing performance at the splicing joint of adjacent prefabricated exterior wall panels.

[0048] 2. During operation, first pull out the locking bolt. After inserting the flexible sealing plate into the insertion slot, the end of the flexible sealing plate can bend along the trajectory of the insertion slot and be inserted into the second straight section of the insertion slot. Then, the locking bolt is passed through the wall panel, so that the end of the locking bolt passes through the connecting hole of the flexible sealing plate. This can fix the flexible sealing plate between adjacent wall panels and connect the two wall panels.

[0049] 3. In use, after inserting the end of the flexible sealing plate into the insertion groove, the elastic inverted plates will be squeezed by both sides of the insertion groove as the flexible sealing plate is inserted, keeping them in the same vertical plane as the flexible sealing plate. Then, as the flexible sealing plate continues to be inserted, until the corresponding arc segment of the flexible sealing plate is inserted into the arc segment of the insertion groove, each elastic inverted plate will bend away from the surface of the flexible sealing plate due to its own elasticity, thus being inserted into the respective slots. When the flexible sealing plate reverses and disengages from the insertion groove, each elastic inverted plate is stuck in the slot and cannot be removed. In this state, the flexible sealing plate is fixed to the wall panel, thereby connecting adjacent wall panels. Attached Figure Description

[0050] Figure 1 is a schematic diagram of the assembly state of the prefabricated exterior wall system in Embodiment 1 of this application;

[0051] Figure 2 is a schematic diagram of the insertion slot structure of the prefabricated exterior wall system in Embodiment 1 of this application;

[0052] Figure 3 is a schematic diagram of the prefabricated exterior wall system in Embodiment 1 of this application, showing the flexible sealing plate in the assembled state with the wall panel hidden.

[0053] Figure 4 is a schematic diagram of the assembled exterior wall system in Embodiment 2 of this application with a wall panel hidden in the assembled state;

[0054] Figure 5 is a schematic diagram of the assembly state of the prefabricated exterior wall system in Embodiment 3 of this application;

[0055] Figure 6 is an exploded view of the prefabricated exterior wall system embodying the clamping strip structure in Embodiment 3 of this application;

[0056] Figure 7 is a schematic diagram of the assembly state of the prefabricated exterior wall system in Embodiment 4 of this application;

[0057] Figure 8 is an exploded view of the prefabricated box structure of the prefabricated exterior wall system in Embodiment 4 of this application.

[0058] Explanation of reference numerals in the attached drawings: 1. Wall panel; 11. Socket; 12. Socket; 13. Locking bolt; 14. Screw hole; 15. Notch; 16. Groove; 17. Grouting port;

[0059] 2. Flexible sealing plate; 21. Receiving groove; 22. Elastic inverted plate; 23. Connecting hole;

[0060] 3. Insertion groove; 31. First straight segment; 311. Elastic sealing gasket; 32. Curved segment; 321. Slot; 33. Second straight segment;

[0061] 4. Clamping bar; 41. Countersunk groove; 42. Connecting bolt;

[0062] 5. Precast box; 51. Grouting tank. Detailed Implementation

[0063] The present application will be further described in detail below with reference to Figures 1-8.

[0064] This application discloses a prefabricated exterior wall system. This system aims to improve the sealing of joints between adjacent prefabricated exterior wall panels 1 while enabling rapid assembly of the panels.

[0065] Referring to Figure 1, a prefabricated exterior wall system includes a wall panel 1 and a flexible sealing panel 2.

[0066] Referring to Figure 1, the wall panel 1 has an overall rectangular plate structure. The two ends along the length of the wall panel 1 are the splicing ends. One splicing end of the wall panel 1 has a vertically formed socket 11, and the other splicing end of the wall panel 1 has a vertically formed insert 12. The insert 12 is used to mate with the socket 11 of the adjacent wall panel 1. Thus, when adjacent wall panels 1 are spliced, the mating of the socket 11 and insert 12 at the splicing ends of the two wall panels 1 facilitates the alignment and splicing of the two wall panels 1.

[0067] Referring to Figure 2, both splicing ends of the wall panel 1 are formed with insertion grooves 3 in the vertical direction. The insertion grooves 3 specifically include a first straight segment 31 and an arc segment 32. The first straight segment 31 extends from the end face of the wall panel 1 into the wall panel 1, and the length direction of the first straight segment 31 is the same as the length direction of the wall panel 1. The arc segment 32 is opened in the wall panel 1 in the vertical direction. The arc segment 32 is C-shaped in general, and one end of the arc segment 32 is connected to the end of the first straight segment 31 that extends into the wall panel 1.

[0068] Referring to Figures 2 and 3, the flexible sealing plate 2 can be made of stainless steel or other corrosion-resistant, high-strength flexible plates. The thickness of the flexible sealing plate 2 is the same as the width of the groove in the insertion slot 3.

[0069] Referring to Figures 2 and 3, when connecting the splicing ends of two adjacent wall panels 1, one end of the flexible sealing plate 2 can be inserted into the insertion groove 3 of one wall panel 1. During the insertion process of the flexible sealing plate 2, the flexible sealing plate 2 will sequentially enter the first straight section 31 and the arc end of the insertion groove 3, so that one end of the flexible sealing plate 2 is fully adapted to the insertion groove 3 of one wall panel 1.

[0070] Referring to Figures 2 and 3, the other end of the flexible sealing plate 2 is then inserted into the insertion groove 3 of the other wall panel 1. As the flexible sealing plate 2 is inserted, it first enters the first straight section 31 of the insertion groove 3 of the other wall panel 1. Then, as the flexible sealing plate 2 continues to enter, it continues to bend along the trajectory of the arc section 32 to fully fit the insertion groove 3. At this point, the splicing ends of the two wall panels 1 will also abut against each other. Thus, by setting the flexible sealing plate 2, the splicing and positioning of the two outer wall panels 1 is achieved, while the flexible sealing plate 2 blocks the position of the splicing seam.

[0071] Referring to Figure 2, further, in order to improve the sealing performance of the insertion groove 3, elastic sealing gaskets 311 are formed on both sides of the first straight section 31 of the insertion groove 3. In this way, after the flexible sealing plate 2 is inserted into the insertion groove 3, the elastic sealing gaskets 311 on both sides of the first straight section 31 of the insertion groove 3 can press against the two sides of the flexible sealing plate 2, thereby improving the sealing performance of the flexible sealing plate 2 at the splicing end with the adjacent wall panel 1.

[0072] Referring to Figures 2 and 3, furthermore, the flexible sealing plate 2 can be inserted into the arc segment 32 of the insertion groove 3, which has several receiving grooves 21 formed therein. Each receiving groove 21 is provided with an elastic inverted plate 22. The side of the elastic inverted plate 22 away from the middle of the length direction of the flexible sealing plate 2 is integrally formed with the flexible sealing plate 2, and the movable end of the elastic inverted plate 22 tends to bend away from the flexible sealing plate 2. Several locking grooves 321 are formed at the arc segment 32 of the insertion groove 3. After the flexible sealing plate 2 is fully inserted into the insertion groove 3, each elastic inverted plate 22 at the arc segment 32 of the flexible sealing plate 2 can be inserted into each locking groove 321 at the arc segment 32 to prevent the flexible sealing plate 2 from detaching from the insertion groove 3.

[0073] Referring to Figures 2 and 3, in use, after the end of the flexible sealing plate 2 is inserted into the insertion groove 3, the elastic inverted plate 22 will be squeezed by both sides of the insertion groove 3 as the flexible sealing plate 2 is inserted, and will remain in the same vertical plane as the flexible sealing plate 2. Then, as the flexible sealing plate 2 continues to be inserted, until the position of the corresponding arc segment 32 of the flexible sealing plate 2 is inserted into the arc segment 32 of the insertion groove 3, each elastic inverted plate 22 will tend to bend away from the surface of the flexible sealing plate 2 through its own elasticity, and thus be inserted into each slot 321. When the flexible sealing plate 2 is pulled away from the insertion groove 3, each elastic inverted plate 22 is stuck in the slot 321 and cannot be removed. In this state, the flexible sealing plate 2 is fixed to the wall panel 1, thereby connecting the adjacent wall panel 1.

[0074] The implementation principle of a prefabricated exterior wall system according to an embodiment of this application is as follows: When the splicing ends of two adjacent wall panels 1 are connected to each other, one end of the flexible sealing plate 2 can be inserted into the insertion groove 3 of one wall panel 1 first. During the insertion process of the flexible sealing plate 2, the flexible sealing plate 2 will sequentially enter the first straight section 31 and the arc end of the insertion groove 3, so that one end of the flexible sealing plate 2 is fully adapted to the insertion groove 3 of one wall panel 1. Then, as the splicing ends of the two adjacent wall panels 1 are spliced, the other end of the flexible sealing plate 2 is fully inserted into the insertion groove 3 of the other wall panel 1. When the flexible sealing plate 2 is inserted into the arc segment 32 of the insertion groove 3, each elastic inverted plate 22 will bend away from the surface of the flexible sealing plate 2 due to its own elasticity, and thus be inserted into each slot 321. When the flexible sealing plate 2 is disengaged from the insertion groove 3, each elastic inverted plate 22 is stuck in the slot 321 and cannot be removed. In this state, the flexible sealing plate 2 is fixed to the wall panel 1, thereby connecting the adjacent wall panels 1. In summary, the joint between the two wall panels 1 can be sealed and the two adjacent wall panels 1 can be connected by the flexible sealing plate 2.

[0075] Example 2, a prefabricated exterior wall system, differs from Example 1 in that:

[0076] This embodiment provides another method for fixing the flexible sealing plate 2 to the wall panel 1, which can directly replace the slot 321 and the elastic inverted plate 22 proposed in Embodiment 1 for individual use, or can be used as a supplementary superposition based on the scheme in Embodiment 1.

[0077] Referring to Figure 4, the insertion slot 3 also includes a second straight segment 33, which is vertically formed in the wall panel 1. The second straight segment 33 is parallel to the first straight segment 31. One end of the second straight segment 33 is connected to the end of the arc segment 32 away from the first straight segment 31, and both the second straight segment 33 and the first straight segment 31 are located on one side of the arc segment 32.

[0078] Referring to Figure 4, the end of the flexible sealing plate 2 is also formed with a connecting hole 23. After the flexible sealing plate 2 is inserted into the insertion groove 3, the flexible sealing plate 2 will be completely along the trajectory of the insertion groove 3, and the position of the connecting hole 23 at the end of the flexible sealing plate 2 will also be located at the straight section of the insertion groove 3.

[0079] Referring to Figure 4, a locking bolt 13 is also screwed onto the side of the wall panel 1. The end of the locking bolt 13 can be inserted vertically into the insertion groove 3 and pass through the connecting hole 23 of the flexible sealing plate 2 to restrict the flexible sealing plate 2 from leaving the straight section of the insertion groove 3.

[0080] The implementation principle of Example 2 is as follows: During operation, firstly, the locking bolt 13 is pulled out. After the flexible sealing plate 2 is inserted into the insertion groove 3, the end of the flexible sealing plate 2 can bend along the trajectory of the insertion groove 3 and be inserted into the second straight section 33 of the insertion groove 3. Then, the locking bolt 13 is passed through the wall panel 1, so that the end of the locking bolt 13 passes through the connecting hole 23 of the flexible sealing plate 2, thereby fixing the flexible sealing plate 2 between adjacent wall panels 1 and connecting the two wall panels 1.

[0081] Example 3, a prefabricated exterior wall system, differs from Example 1 in that:

[0082] Referring to Figure 5, the splicing end of the wall panel 1 has two insertion grooves 3, and the bending directions of the arc segments 32 of the two insertion grooves 3 are opposite. Both insertion grooves 3 can realize the insertion of the flexible sealing plate 2.

[0083] Referring to Figures 5 and 6, a notch 15 is vertically formed at the splicing end of the wall panel 1, corresponding to the position between the two insertion slots 3. The two sides of the notch 15 are interconnected with the two insertion slots 3. A clamping strip 4 is also vertically arranged between the splicing ends of adjacent wall panels 1. The clamping strip 4 can be made of an elastic material, such as a rubber strip. The width of the middle part of the clamping strip 4 is greater than the width of its two sides, and the width of the middle part of the clamping strip 4 is greater than the width of the notch 15, so that the cross-section of the clamping strip 4 is composed of two trapezoidal splices.

[0084] Referring to Figures 5 and 6, when splicing two wall panels 1, the clamping strip 4 is placed between the splicing end faces of the wall panels 1. As the wall panels 1 gradually approach each other, the flexible sealing plate 2 is inserted into the insertion groove 3, and at the same time, the side of the clamping strip 4 is also inserted into the notch groove 15. Since the width of the middle part of the clamping strip 4 is greater than the width of the notch groove 15, when the flexible sealing plate 2 is fully inserted into the insertion groove 3, the clamping strip 4 will also press against the flexible sealing plate 2 located on both sides of the notch groove 15 to the opposite side of the two insertion grooves 3, thereby further improving the sealing performance between the flexible sealing plate 2 and the insertion groove 3. Furthermore, due to the cooperation between the clamping strip 4 and the two wall panels 1, the two wall panels 1 can be further aligned, achieving the same function as the socket 11 and insertion port 12 at the two splicing ends of the wall panels 1. Thus, in another embodiment of this application, the socket 11 and insertion port 12 at the splicing ends of the wall panels 1 can also be eliminated.

[0085] Referring to Figures 5 and 6, a connecting component is also provided at one splicing end of the wall panel 1 for connecting the notch 15 and the clamping strip 4 to facilitate the installation of the clamping strip 4. Specifically, the connecting component can be a connecting bolt 42. That is, the upper edge of the clamping strip 4 has a recessed groove 41 that passes through the clamping strip 4 along its length direction. One end face of the wall panel 1 is formed with a screw hole 14. After inserting one side of the clamping strip 4 into the notch 15 of the wall panel 1, the clamping strip 4 can be fixed to one side of the wall panel 1 by inserting the connecting bolt 42 into the recessed groove 41 of the clamping strip 4 and connecting it with the screw hole 14 of the wall panel 1. At the same time, the clamping strip 4 can press the two flexible sealing plates 2 of the wall panel 1. Then, the two wall panels 1 are spliced ​​together, so that the other side of the clamping strip 4 can be inserted into the notch 15 of the other wall panel 1.

[0086] The implementation principle of Example 3 is as follows: First, one end of each of the two flexible sealing plates 2 is inserted into the insertion groove 3 of one wall panel 1. Then, one side of the pressing strip 4 is inserted into the notch 15 of the wall panel 1, and the pressing strip 4 is fixed to the wall panel 1 by the connecting assembly. Then, the two wall panels 1 are spliced ​​together, and the other end of each of the two flexible sealing plates 2 is inserted into the two insertion grooves 3 of the other wall panel 1. The other side of the pressing strip 4 will also be inserted into the notch 15 of the other wall panel 1 during the splicing process, thereby realizing the splicing and fixing of the two wall panels 1.

[0087] During the splicing of wall panels 1, as wall panels 1 gradually approach each other, the flexible sealing plate 2 is inserted into the interlocking groove 3, and at the same time, the side of the pressing strip 4 is also inserted into the notch 15. Then, when the flexible sealing plate 2 is fully inserted into the interlocking groove 3, the pressing strip 4 will also press the flexible sealing plate 2 located on both sides of the notch 15 to the opposite side of the two interlocking grooves 3, thereby further improving the sealing performance between the flexible sealing plate 2 and the interlocking groove 3, and ensuring the alignment of the two wall panels 1.

[0088] Example 4, a prefabricated exterior wall system, differs from Example 1 in that:

[0089] This embodiment provides another solution for forming the insertion groove 3 at the splicing end of the wall panel 1 to solve the problems of high precision requirements for the insertion groove 3 and difficulty in forming the slot 321 within the wall panel 1. The specific solution adopted is as follows:

[0090] Referring to Figure 7, each splicing end of the wall panel 1 has a vertically formed groove 16, in which a prefabricated box 5 is embedded, and an insertion groove 3 is formed in the prefabricated box 5. Specifically, the prefabricated box 5 can be integrally injection molded from plastic material, or integrally cast from metal material. Alternatively, the prefabricated box 5 can be formed in sections and then joined together by welding and bonding.

[0091] Referring to Figure 7, the precast box 5 can be directly cast onto both sides of the wall panel 1 during the pouring of the wall panel 1, thereby facilitating the fixing of the wall panel 1 and the precast box 5.

[0092] Alternatively, wall panels 1 and prefabricated boxes 5 can be prefabricated separately and then assembled. Specifically, the following methods can be used:

[0093] Referring to Figure 8, the outer side of the precast box 5 is formed with a grouting groove 51.

[0094] Referring to Figure 8, a grouting port 17 is formed on the side of the wall panel 1. After the precast box 5 is placed in the groove 16 of the wall panel 1, the grouting port 17 can communicate with the grouting groove 51. In this way, the precast box 5 with the insertion groove 3 can be inserted into the groove 16 of the wall panel 1. Through the grouting port 17, concrete grout can be injected into the grouting groove 51 on the outside of the precast box 5 inside the wall panel 1. After the grout solidifies, the precast box 5 can be firmly fixed inside the wall panel 1, which facilitates the installation of the precast box 5.

[0095] The advantage of this embodiment is that by using a prefabricated box 5 with pre-formed insertion grooves 3, the difficulty of directly opening insertion grooves 3 on the wall panel 1 is reduced, and the forming accuracy of insertion grooves 3 can be guaranteed, so as to facilitate the operation of insertion grooves 3.

[0096] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A prefabricated exterior wall system, characterized in that, include: Wall panel (1); insertion groove (3), formed vertically at the splicing end of wall panel (1); flexible sealing plate (2), vertically disposed between adjacent wall panels (1), moving relative to adjacent wall panels (1) to abut against each other at the splicing end, the end of the flexible sealing plate (2) can be sealed and inserted into the insertion groove (3) of the wall panel (1) and adapted to the insertion groove (3); wherein, the insertion groove (3) includes: a first straight segment (31), extending from the end face of the wall panel (1) into the interior of the wall panel (1); an arc segment (32), located inside the wall panel (1), communicating with the end of the first straight segment (31) located inside the wall panel (1); the insertion groove (3) further includes: a first straight segment (31); an arc segment (32), located inside the wall panel (1), communicating with the end of the first straight segment (31) located inside the wall panel (1); the insertion groove (3) further includes: a first straight segment (31); an arc segment (32), located inside the wall panel (1), communicating with the end of the first straight segment (31) located inside the wall panel (1); the insertion groove (3) further includes: a first straight segment (31); a second straight segment (32); a second ... Two straight segments (33) are located inside the wall panel (1) and are connected to the end of the arc segment (32) away from the first straight segment (31). The second straight segment (33) and the first straight segment (31) are located on the same side of the arc segment (32). The end of the flexible sealing plate (2) is formed with a connecting hole (23). A locking bolt (13) is screwed to the side of the wall panel (1). The end of the locking bolt (13) passes vertically through the second straight segment (33) of the insertion groove (3). After the flexible sealing plate (2) is inserted into the insertion groove (3), the locking bolt (13) can pass through the connecting hole (23) of the flexible sealing plate (2). The flexible sealing plate (2) has several receiving grooves (21) formed in the part of the arc segment (32) that can be inserted into it; an elastic inverted plate (22) is provided in the receiving groove (21); the side of the elastic inverted plate (22) away from the middle of the length direction of the flexible sealing plate (2) is fixed to the flexible sealing plate (2), and the other side of the elastic inverted plate (22) tends to bend away from the surface of the flexible sealing plate (2); the arc segment (32) of the insertion groove (3) has several slots (321) formed in it. After the flexible sealing plate (2) is inserted into the insertion groove (3), each of the elastic inverted plates (22) can be inserted into each slot (321) to restrict the flexible sealing plate (2) from being inserted. The wall panel (1) is disengaged from the groove (3); the splicing end of the wall panel (1) is formed with two insertion grooves (3); the arc segment (32) of the two insertion grooves (3) tends to bend in the opposite direction of the two straight segments; the wall panel (1) is vertically formed with a notch (15) at the position between the straight segments of the two insertion grooves (3), and the notch (15) is connected to the two insertion grooves (3); it also includes: a pressing strip (4), the width of the middle part is greater than the width of its side, and it is vertically inserted between the notch (15) of the adjacent wall panel (1), and is inserted into the notch (15) along with the pressing strip (4) on both sides. The pressing strip (4) can squeeze the flexible sealing plate (2) in the two insertion grooves (3) at the same end of the wall panel (1).

2. The prefabricated exterior wall system according to claim 1, characterized in that: Both sides of the straight section of the insertion groove (3) are formed with elastic sealing gaskets (311) to press against the opposite sides of the flexible sealing plate (2).

3. The prefabricated exterior wall system according to claim 1, characterized in that: A connecting component is provided between the clamping strip (4) and the notch (15) of any wall panel (1) for fixing the clamping strip (4) in the notch (15) of any wall panel (1).

4. The prefabricated exterior wall system according to claim 1, characterized in that: The splicing end of the wall panel (1) is vertically formed with a groove (16); the groove (16) is sealed and fixed with a prefabricated box (5), and the insertion groove (3) is formed in the prefabricated box (5).

5. A prefabricated exterior wall system according to claim 4, characterized in that: The precast box (5) has a grouting groove (51) formed on its outer side; the wall panel (1) has a grouting port (17) which is connected to the grouting groove (51).

6. A prefabricated exterior wall system according to claim 1, characterized in that: One end of the wall panel (1) is vertically formed with a socket (11); the other end of the wall panel (1) is vertically formed with a slot (12) for fitting with the socket (11) of the adjacent wall panel (1).

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