An aerated concrete thermal insulation external wall panel system and a construction method thereof

Abstract

The application relates to an aerated concrete thermal insulation outer wall plate system and a construction method thereof, and belongs to the field of thermal insulation outer wall plate technology. The system comprises a base plate, a mounting beam, a partition plate and an air bag. The mounting beam is arranged in a horizontal direction on an outer wall and is spaced apart from each other. The mounting beam is in a T shape. A guide plate with a straight-angled trapezoidal cross section is arranged on the upper side of the web of the mounting beam. A first accommodating groove is arranged on the top of the guide plate. An L-shaped clamping plate is arranged on the lower side of the web of the mounting beam. A second accommodating groove is arranged on the clamping plate. The partition plate is clamped between two mounting beams. Third accommodating grooves are arranged on the two sides of the partition plate. The base plate is clamped between the mounting beam and the partition plate. The first accommodating groove, the second accommodating groove and the third accommodating groove are communicated. The air bag is arranged around the edge of the base plate and is located in the first accommodating groove, the second accommodating groove and the third accommodating groove. The application can improve the water seepage prevention effect of the aerated concrete thermal insulation outer wall plate.

Description

Technical Field

[0001] This application relates to the field of thermal insulation exterior wall panel technology, and in particular to an aerated concrete thermal insulation exterior wall panel system and its construction method. Background Technology

[0002] Autoclaved aerated concrete (AAC) panels are porous panels made primarily from siliceous and calcareous materials, using aluminum powder as the gas-generating agent, and reinforced with corrosion-resistant steel mesh. The process involves mixing with water, pouring into molds, pre-curing, cutting, and steam curing. Based on their application, AAC panels can be categorized as exterior wall panels, partition walls, and roof panels.

[0003] With the country's vigorous promotion of steel structure prefabricated buildings, lightweight aerated concrete exterior wall panels, which are lightweight, fire-resistant, sound-insulating, and have good thermal insulation properties, have been widely used. When installing exterior wall panels, the first requirement is reliable installation quality and safe use; at the same time, in order to achieve thermal insulation and energy-saving effects, it is necessary to prevent water seepage from the exterior walls.

[0004] Currently, when installing aerated concrete insulated exterior wall panels, sealant is generally used to fill the joints to prevent water seepage. However, manual sealing may leave gaps, and the sealant will age over time, resulting in poor water seepage prevention performance of the aerated concrete insulated exterior wall panels. Summary of the Invention

[0005] To improve the water-proofing effect of aerated concrete insulated exterior wall panels, this application provides an aerated concrete insulated exterior wall panel system.

[0006] On the one hand, the aerated concrete insulated exterior wall panel system provided in this application adopts the following technical solution: An aerated concrete insulated exterior wall panel system includes a base plate, mounting beams, partition plates, and airbags. Multiple mounting beams are spaced horizontally along the exterior wall. Each mounting beam is T-shaped, with its flanges fitting against the exterior wall and its web extending horizontally away from the wall. A guide plate with a right-angled trapezoidal cross-section and a downward-sloping surface extending away from the wall is provided on the upper side of the web of the mounting beam. A first receiving groove is formed at the top of the guide plate. An L-shaped snap-fit ​​plate is provided on the lower side of the web of the mounting beam, with a second receiving groove formed on the snap-fit ​​plate. Partition plates are snap-fitted between two mounting beams at intervals, and third receiving grooves are formed on both sides of the partition plates. The base plate is snap-fitted between the mounting beams and the partition plates and fits against both the mounting beams and the partition plates. The first, second, and third receiving grooves are connected. Airbags are arranged around the edge of the base plate and are located within the first, second, and third receiving grooves.

[0007] Preferably, the base plate has a placement groove around its edge, and the placement groove is directly opposite the first receiving groove, the second receiving groove, and the third receiving groove.

[0008] Preferably, the outer side of the vertical section of the snap-fit ​​plate is flush with the outer side of the web of the mounting beam, the inner side of the vertical section of the snap-fit ​​plate is inclined, and the distance between the upper end of the inner side of the vertical section of the snap-fit ​​plate and the outer wall is small.

[0009] Preferably, an inflation hole is provided on the partition plate and on the bottom wall of the third receiving groove, and the inflation nozzle on the airbag extends into the inflation hole. The inflation hole is sealed with sealant after the airbag is inflated.

[0010] Preferably, a lower support plate in the shape of a right-angled triangle is provided at the lower connection between the mounting beam and the partition plate, and an upper support plate in the shape of a right-angled triangle is provided at the upper connection between the mounting beam and the partition plate. The inner sides of both the upper and lower support plates are arc-shaped, and a fourth receiving groove for accommodating the airbag is formed on the arc surface of both the upper and lower support plates. A fixing component is provided on both the upper and lower support plates for fixing the upper and lower support plates.

[0011] Preferably, an upper retaining strip is provided on the upper right-angled edge of the upper receiving plate, and a lower retaining strip is provided on the lower right-angled edge of the lower receiving plate. The upper receiving plate is engaged with the second receiving groove by the upper retaining strip, and the lower receiving plate is engaged with the first receiving groove by the lower retaining strip.

[0012] Preferably, the fixing component includes a steel ball and a spring. Both sides of the lower locking strip are provided with a first fixing groove with an inclined bottom wall. The lower end of the first fixing groove is shallow and the upper end is deep. The steel ball and the spring are both provided in the first fixing groove. The spring makes the steel ball always have a tendency to move downward along the first fixing groove.

[0013] Preferably, the upper locking strip has a second fixing groove with an inclined bottom wall on both sides. The second fixing groove has a deeper lower end and a shallower upper end. The steel ball and the spring are also provided in the second fixing groove. The spring makes the steel ball always have a tendency to move upward along the second fixing groove.

[0014] On the other hand, this application provides a construction method for aerated concrete insulated exterior wall panels, including the following steps: S1: Prefabricate the installation beams, partition panels, and baseboards according to design requirements; S2: Construct the installation beams within the exterior wall during construction; S3: Apply sealant to the first, second, and third receiving grooves; S4: Install one side of the partition panel, place the airbag around the edge of the baseboard, slide the airbag along the two adjacent installation beams until it fits the partition panel, and then install the partition panel on the other side of the baseboard; S5: Inflate the airbag to fill the first, second, and third receiving grooves; S6: Repeat steps S4-S5 to install multiple baseboards sequentially.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. The first receiving groove, the second receiving groove, and the third receiving groove are connected to form an annular groove surrounding the base plate. The airbag is installed around the edge of the base plate and located in the placement groove. The airbag is directly opposite the annular groove formed by the first receiving groove, the second receiving groove, and the third receiving groove. When the airbag is not inflated, it is located in the placement groove and does not affect the sliding installation of the base plate between two adjacent installation beams. When the airbag is inflated, it expands and fills the placement groove, the first receiving groove, the second receiving groove, and the third receiving groove, thereby sealing the edge of the base plate through the airbag and improving the waterproof effect of the base plate. 2. An upper support plate and a lower support plate are provided, and the inclined sides of both the upper support plate and the lower support plate are set to be arc-shaped, so that the transition between the first receiving groove and the third receiving groove, and between the second receiving groove and the third receiving groove is smooth, avoiding the airbag from bending at right angles and causing wrinkles, resulting in small gaps at the corners of the airbag, and further improving the water-proofing effect. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0017] Figure 2 This is a schematic diagram used to illustrate the installation status of the installation beam and partition plate in the embodiments of this application.

[0018] Figure 3 This is a cross-sectional view used to illustrate the installation beam structure in the embodiments of this application.

[0019] Figure 4 This is a schematic diagram illustrating the lower support plate structure in Embodiment 2 of this application.

[0020] Figure 5 yes Figure 4 Enlarged view of section A.

[0021] Figure 6 This is a schematic diagram illustrating the upper support plate structure in Embodiment 2 of this application.

[0022] Explanation of reference numerals in the attached figures: 1. Base plate; 11. Placement groove; 2. Mounting beam; 3. Partition plate; 31. Third receiving groove; 32. Inflation hole; 4. Airbag; 5. Guide plate; 51. First receiving groove; 6. Snap-fit ​​plate; 61. Second receiving groove; 7. Lower support plate; 71. Fourth receiving groove; 72. Lower snap-fit ​​strip; 73. First fixing groove; 8. Upper support plate; 81. Upper snap-fit ​​strip; 82. Second fixing groove; 91. Steel ball; 92. Spring. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0024] Example 1: This application discloses an aerated concrete insulated exterior wall panel system, referring to... Figure 1 and Figure 2 An aerated concrete insulated exterior wall panel system includes a base plate 1, which is an aerated concrete insulation board. The exterior wall panel system also includes mounting beams 2, partition panels 3, and airbags 4. Multiple mounting beams are spaced horizontally along the exterior wall. The distance between two adjacent mounting beams 2 is selected according to design requirements. The cross-sectional shape of the mounting beams 2 is T-shaped, and the flanges of the mounting beams 2 are fitted to the exterior wall, while the webs of the mounting beams 2 extend horizontally away from the exterior wall. Multiple embedded rods are integrally cast on the flanges of the mounting beams 2 facing the exterior wall. During the installation of the mounting beams 2, the embedded rods are embedded in the exterior wall, thereby realizing the installation of the mounting beams 2.

[0025] A guide plate 5 is provided on the upper side of the web of the mounting beam 2. The length direction of the guide plate 5 is along the length direction of the mounting beam 2, and the cross-section of the guide plate 5 is a right trapezoid. The lower bottom of the guide plate 5 is attached to the upper surface of the web of the mounting beam 2, and the inclined surface of the guide plate 5 extends downward away from the outer wall. A first receiving groove 51 is formed on the top of the guide plate 5 along its length direction. An L-shaped snap-fit ​​plate 6 is provided on the lower side of the web of the mounting beam 2. The horizontal section of the snap-fit ​​plate 6 is attached to the web of the mounting beam 2, and the outer side of the vertical section of the snap-fit ​​plate 6 is flush with the outer side of the web of the mounting beam 2. The inner layer of the vertical section of the snap-fit ​​plate 6 is inclined, and the distance between the upper end of the inner side of the vertical section of the snap-fit ​​plate 6 and the outer wall is close, while the distance between the lower end of the inner side of the vertical section of the snap-fit ​​plate 6 and the outer wall is far. A second receiving groove 61 is formed on the lower side of the horizontal section of the snap-fit ​​plate 6 along its length direction. The partition plate 3 is a rectangular plate. The guide plate 5 and the snap-fit ​​plate 6 have notches for snap-fitting the partition plate 3. The partition plate 3 is snap-fitted between two adjacent mounting beams 2 at intervals. The partition plate 3 has a third receiving groove 31 on both sides along the length of the partition plate 3.

[0026] The base plate 1 is snapped between two adjacent mounting beams 2 and two adjacent partition plates 3. The four edges of the base plate 1 are respectively attached to the mounting beams 2 and partition plates 3. A placement groove 11 is formed around the edge of the base plate 1, which is directly opposite to the first receiving groove 51, the second receiving groove 61, and the third receiving groove 31. The first receiving groove 51, the second receiving groove 61, and the third receiving groove 31 are connected to form an annular groove around the base plate 1. An airbag 4 is installed around the edge of the base plate 1 and is located in the placement groove 11. The airbag 4 is directly opposite to the annular groove formed by the first receiving groove 51, the second receiving groove 61, and the third receiving groove 31. When the airbag 4 is not inflated, it is located in the placement groove 11 and does not affect the sliding installation of the base plate 1 between the two adjacent mounting beams 2. When the airbag 4 is inflated, it expands and fills the placement groove 11, the first receiving groove 51, the second receiving groove 61, and the third receiving groove 31. Meanwhile, when installing the base plate 1, sealant can be applied to the bottom wall of the placement groove 11 of the base plate 1, and sealant can also be applied to the bottom walls of the first receiving groove 51, the second receiving groove 61, and the third receiving groove 31. After the airbag 4 is inflated, the airbag 4 is bonded to the base plate 1, the installation beam 2, and the partition plate 3 through the sealant.

[0027] During the installation of the base plate 1, the base plate 1 is installed between two adjacent mounting beams 2. The lower end of the base plate 1 is attached to the guide plate 5, and the upper end of the base plate 1 is attached to the snap-fit ​​plate 6, thereby snapping the base plate 1 between the two adjacent mounting beams 2. At the same time, the outer sides of the guide plate 5 and the outer sides of the snap-fit ​​plate 6 are both inclined downwards, so that water seepage is not easy to penetrate into the mounting beams 2 during rainy weather. Meanwhile, airbags 4 are sleeved around the edge of the base plate 1. After the base plate 1 is installed in place, the airbags 4 are inflated. The airbags 4 fill the first receiving groove 51, the second receiving groove 61 and the third receiving groove 31, filling the gaps between the base plate 1 and the mounting beams 2 and the partition plate 3, thereby forming a seal at the edge of the base plate 1, which prevents rainwater from seeping into the base plate 1 along the partition seams.

[0028] Reference Figure 2 An inflation hole 32 is provided in the middle of the partition plate 3 and on the bottom wall of the receiving groove. The inflation hole 32 passes through the third receiving groove 31 on both sides of the partition plate. An inflation nozzle is installed on the airbag 4. When the base plate 1 is installed, the inflation nozzle is aligned and inserted into the inflation hole 32. After the base plate 1 and the partition plate 3 are installed in place, the airbag 4 is inflated by connecting the external inflation equipment with the inflation nozzle. After the airbag 4 is inflated, the inflation hole 32 is filled and sealed with sealant to prevent rainwater from seeping into the inflation hole 32.

[0029] The implementation principle of the aerated concrete insulated exterior wall panel system in Embodiment 1 of this application is as follows: When installing the base plate 1, first install the partition plate 3 on one side of the base plate 1, put the air bag 4 on the edge of the base plate 1, slide the base plate 1 into place between two adjacent installation beams 2, and then install the partition plate 3 on the other side of the base plate 1. After that, inflate the air bag 4. The air bag 4 expands and fills the gap between the base plate 1 and the installation beams 2 and the partition plate 3, sealing the base plate 1 and achieving the effect of preventing water seepage.

[0030] Example 2: Reference Figure 1 and Figure 4 A lower support plate 7 is installed at the lower connection between the mounting beam 2 and the partition plate 3, and an upper support plate 8 is installed at the upper connection between the mounting beam 2 and the partition plate 3. Both the upper support plate 8 and the lower support plate 7 are right-angled triangles, and their two right-angled sides are respectively engaged with the mounting beam 2 and the partition plate 3. The hypotenuses of the upper support plate 8 and the lower support plate 7 are arc-shaped. A fourth receiving groove 71 is provided on the arc-shaped inclined surface of both the upper support plate 8 and the lower support plate 7. The fourth receiving groove 71 of the upper support plate 8 is connected to the second receiving groove 61 on the engaging plate 6 and the third receiving groove 31 on the partition plate 3, respectively. The fourth receiving groove 71 of the lower support plate 7 is connected to the first receiving groove 51 on the backflow plate and the third receiving groove 31 on the partition plate 3, respectively. An upper retaining strip 81 is provided on the upper right-angled edge of the upper receiving plate 8, and the upper retaining strip 81 is adapted to the second receiving groove 61; a lower retaining strip 72 is provided on the lower right-angled edge of the lower receiving plate 7, and the lower retaining strip 72 is adapted to the first receiving groove 51. Fixing components are installed on both the upper receiving plate 8 and the lower receiving plate 7, and the fixing components are used to fix the upper receiving plate 8 and the lower receiving plate 7 between the mounting beam 2 and the partition.

[0031] The upper support plate 8 and the lower support plate 7 are provided, and the inclined sides of the upper support plate 8 and the lower support plate 7 are both set to be arc-shaped, so that the transition between the first receiving groove 51 and the third receiving groove 31, and the second receiving groove 61 and the third receiving groove 31 is smooth, avoiding the airbag 4 from bending at right angles and causing wrinkles, thus preventing small gaps at the corners of the airbag 4 and further improving the water leakage prevention effect.

[0032] Reference Figure 4 and Figure 5The fixing component includes a steel ball 91 and a spring 92. A first fixing groove 73 is provided on both sides of the lower retaining strip 72. The bottom wall of the first fixing groove 73 is inclined, with a shallower depth at the lower end and a deeper depth at the upper end. Both the steel ball 91 and the spring 92 are disposed within the first fixing groove 73. The diameter of the steel ball 91 is greater than the shallowest depth of the first fixing groove 73 and less than the deepest depth of the first fixing groove 73. One end of the spring 92 is connected to the top sidewall of the first fixing groove 73, and the other end is connected to the steel ball 91. The spring 92 ensures that the steel ball 91 always has a tendency to move downwards along the first fixing groove 73.

[0033] When installing the lower receiving plate 7, the lower retaining strip 72 is inserted into the first receiving groove 51. Under the action of the spring 92, the steel ball 91 always keeps one side in contact with the lower retaining strip 72 and the other side in contact with the bottom wall of the first fixing groove 73. When the lower receiving plate 7 has a tendency to detach upward from the guide plate 5, the steel ball 91 will clamp the lower receiving plate 7 onto the guide plate 5, thereby achieving the limiting and fixing of the guide plate 5.

[0034] Reference Figure 6 The upper retaining strip 81 has second fixing grooves 82 with inclined bottom walls on both sides. The second fixing grooves 82 have the same structure as the first fixing groove 73 but are in the opposite direction. The lower end of the second fixing groove 82 is deeper and the upper end is shallower. Steel balls 91 and springs 92 are also provided in the second fixing grooves 82. The springs 92 in the second fixing grooves 82 cause the steel balls 91 in the second fixing grooves 82 to always have a tendency to move upward along the second fixing grooves 82. Thus, when the upper receiving plate 8 is engaged with the baffle plate and the upper receiving plate 8 has a tendency to move downward away from the baffle plate, the steel balls 91 on the upper receiving plate 8 fix and limit the upper receiving plate 8, preventing the upper receiving plate 8 from detaching from the baffle plate.

[0035] This application also discloses a construction method for aerated concrete insulated exterior wall panels, including the following steps: S1: Prefabricate and install beam 2, partition board 3, and base board 1 according to design requirements; S2: During the construction of the exterior wall, the installation beam 2 is built into the exterior wall through the pre-embedded rods. The spacing between two adjacent pre-embedded rods is selected according to the design requirements. S3: Apply sealant to the first receiving groove 51, the second receiving groove 61, the third receiving groove 31, the fourth receiving groove 71 and the placement groove 11; S4: Install a partition plate 3, and install the upper support plate 8 and the lower support plate 7 between the partition plate 3 and the mounting beam 2; S5: Place the airbag 4 on the edge of the base plate 1, and slide the airbag 4 between the two mounting beams 2 to fit the partition plate 3 in S4. S6: Install the upper support plate 8 and the lower support plate 7 on the other side of the base plate 1, and then install the partition plate 3 on the other side of the base plate 1, so that the inflation nozzle of the airbag 4 extends into the inflation hole 32 on the partition plate 3. S7: Inflate the airbag 4. After the airbag 4 is inflated, seal the inflation hole 32 on the partition plate 3 with sealant. S8: Repeat steps S5-S7 above to install multiple baseboards 1 in sequence.

[0036] Finally, it should be noted that in the description of this application, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] 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. An aerated concrete insulated exterior wall panel system, comprising a base panel (1), characterized in that: It also includes mounting beams (2), partition plates (3), and airbags (4). Multiple mounting beams (2) are arranged horizontally on the outer wall. The mounting beams (2) are T-shaped, and the flanges of the mounting beams (2) are attached to the outer wall. The web of the mounting beams (2) extends horizontally away from the outer wall. A guide plate (5) with a right trapezoidal cross section and a downward inclined surface extending away from the outer wall is provided on the upper side of the web of the mounting beams (2). A first receiving groove (51) is provided on the top of the guide plate (5). An L-shaped snap-fit ​​plate (6) is provided on the lower side of the web of the mounting beams (2). A first receiving groove (51) is provided on the snap-fit ​​plate (6). Two receiving slots (61), the partition plate (3) is interlocked between two mounting beams (2), the partition plate (3) has a third receiving slot (31) on both sides, the base plate (1) is interlocked between the mounting beam (2) and the partition plate (3) and is in contact with the mounting beam (2) and the partition plate (3), the first receiving slot (51), the second receiving slot (61) and the third receiving slot (31) are connected, the airbag (4) is arranged around the edge of the base plate (1) and the airbag (4) is located in the first receiving slot (51), the second receiving slot (61) and the third receiving slot (31).

2. The aerated concrete insulated exterior wall panel system according to claim 1, characterized in that: The base plate (1) has a placement groove (11) around its edge, and the placement groove (11) is directly opposite to the first receiving groove (51), the second receiving groove (61), and the third receiving groove (31).

3. The aerated concrete insulated exterior wall panel system according to claim 1, characterized in that: The outer side of the vertical section of the snap-fit ​​plate (6) is flush with the outer side of the web of the mounting beam (2), the inner side of the vertical section of the snap-fit ​​plate (6) is inclined, and the upper end of the inner side of the vertical section of the snap-fit ​​plate (6) is close to the outer wall.

4. The aerated concrete insulated exterior wall panel system according to claim 1, characterized in that: An inflation hole (32) is provided on the partition plate (3) and on the bottom wall of the third receiving groove (31). The inflation nozzle on the airbag (4) extends into the inflation hole (32). The inflation hole (32) is sealed with sealant after the airbag (4) is inflated.

5. The aerated concrete insulated exterior wall panel system according to claim 1, characterized in that: A right-angled triangle lower support plate (7) is provided at the lower connection between the mounting beam (2) and the partition plate (3), and a right-angled triangle upper support plate (8) is provided at the upper connection between the mounting beam (2) and the partition plate (3). The inner sides of the upper support plate (8) and the lower support plate (7) are both arc-shaped, and a fourth receiving groove (71) for accommodating the airbag (4) is opened on the arc surface of the upper support plate (8) and the lower support plate (7). A fixing component is provided on the upper support plate (8) and the lower support plate (7), and the fixing component is used to fix the upper support plate (8) and the lower support plate (7).

6. The aerated concrete insulated exterior wall panel system according to claim 5, characterized in that: An upper retaining strip (81) is provided on the upper right-angled edge of the upper receiving plate (8), and a lower retaining strip (72) is provided on the lower right-angled edge of the lower receiving plate (7). The upper receiving plate (8) is snapped into the second receiving groove (61) by the upper retaining strip (81), and the lower receiving plate (7) is snapped into the first receiving groove (51) by the lower retaining strip (72).

7. An aerated concrete insulated exterior wall panel system according to claim 6, characterized in that: The fixing component includes a steel ball (91) and a spring (92). Both sides of the lower retaining strip (72) are provided with a first fixing groove (73) with an inclined bottom wall. The lower end of the first fixing groove (73) is shallow and the upper end is deep. The steel ball (91) and the spring (92) are both provided in the first fixing groove (73). The spring (92) makes the steel ball (91) always have a tendency to move downward along the first fixing groove (73).

8. An aerated concrete insulated exterior wall panel system according to claim 7, characterized in that: The upper snap-fit ​​strip (81) has a second fixing groove (82) with an inclined bottom wall on both sides. The second fixing groove (82) is deep at the bottom and shallow at the top. The steel ball (91) and the spring (92) are also provided in the second fixing groove (82). The spring (92) makes the steel ball (91) always have the tendency to move upward along the second fixing groove (82).

9. A construction method for an aerated concrete insulated exterior wall panel system according to any one of claims 1-8, characterized in that, Includes the following steps: S1: According to the design requirements, the installation beam (2), partition plate (3) and base plate (1) are prefabricated; S2: During the construction of the exterior wall, the installation beam (2) will be built into the exterior wall; S3: Apply sealant to the first receiving groove (51), the second receiving groove (61), and the third receiving groove (31); S4: Install the partition plate (3) on one side, put the airbag (4) on the edge of the base plate (1), slide the airbag (4) along the two adjacent mounting beams (2) to fit the partition plate (3), and then install the partition plate (3) on the other side of the base plate (1). S5: Inflate the airbag (4) to fill the first receiving groove (51), the second receiving groove (61) and the third receiving groove (31); S6: Repeat steps S4-S5 to install multiple baseboards (1) in sequence.

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