Prefabricated composite wall with dry connection structure

Abstract

The application discloses a composite wall body with a dry connection structure, which comprises an outer wallboard, an inner wallboard and a connecting and fixing mechanism, wherein the connecting and fixing mechanism comprises a second connecting keel and a plurality of first connecting keels, the second connecting keel is a rectangular frame structure parallel to the outer wallboard, the outer side of the rectangular frame structure is covered and connected with a gypsum board sealing layer to form a rectangular plate, the first connecting keel is fixed between the outer wallboard and the rectangular plate on one side and between the inner wallboard and the rectangular plate on the other side, the side edge of the gypsum board sealing layer is connected with a cement insertion block and a steel bar fixing strip, a fitting opening is formed on the other side edge of the gypsum board sealing layer, a second connecting keel on one side of the fitting opening is provided with an insertion opening, and the cement insertion block can be inserted into the fitting opening. The cement insertion block and the steel bar fixing strip can be inserted into the inside of another composite wall body for fixing, and the prefabricated composite wall body can be fixed and reinforced.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated composite wall panel technology, specifically relating to a prefabricated composite wall with a dry connection structure. Background Technology

[0002] Precast composite wall panels are a type of building material that integrates decoration, insulation, waterproofing, flame retardancy, and sound insulation. They are mainly composed of various materials such as exterior wall bricks, insulation materials, reinforced concrete, and waterproof coatings. Among them, insulation materials are the most important component of precast wall panels. Common types include extruded polystyrene foam board (EPS), extruded polyurethane foam board (PU), and extruded polystyrene composite polyurethane foam board.

[0003] Current prefabricated composite wall panels are usually interlocked or connected and fixed by cement adhesive, but the connection strength of their internal keel is not high enough and the thermal insulation effect is limited. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, this invention provides a prefabricated composite wall with a dry connection structure. The technical problem to be solved by this invention is achieved through the following technical solution:

[0005] This invention provides a composite wall with a dry connection structure, comprising an outer wall panel, an inner wall panel, and a connection and fixing mechanism disposed between the outer wall panel and the inner wall panel, wherein...

[0006] The fixed connection mechanism includes a second connecting keel and a plurality of first connecting keels, wherein the second connecting keel is a rectangular frame structure parallel to the outer wall panel; the outer side of the rectangular frame structure is covered and connected with a gypsum board sealing layer, and the gypsum board sealing layer and the second connecting keel are combined to form a rectangular plate parallel to the outer wall panel and the inner wall panel;

[0007] A portion of the plurality of first connecting keels is fixed between the outer wall panel and the rectangular plate, and another portion of the plurality of first connecting keels is fixed between the inner wall panel and the rectangular plate;

[0008] The first side of the gypsum board sealing layer is connected to a cement insert block, and the cement insert block is connected to a steel bar fixing strip extending from the cement insert block;

[0009] A fitting opening is provided on the second side of the gypsum board sealing layer, which is parallel to the first side. An insertion opening is provided on one side of the second connecting keel inside the fitting opening. The cement insertion block has the same height position as the fitting opening and can be inserted into the fitting opening.

[0010] In one embodiment of the present invention, an insulation layer is provided on the side of the outer wall panel away from the first connecting keel; and a fireproof partition is provided on the side of the inner wall panel away from the first connecting keel.

[0011] In one embodiment of the present invention, the size of the fitting opening is slightly larger than that of the cement insertion block, and the size of the fitting opening is slightly larger than that of the reinforcing bar fixing strip, so as to insert the reinforcing bar fixing strip of the current composite wall into the fitting opening of the other composite wall through the fitting opening of the other composite wall, and to position the cement insertion block of the current composite wall in the fitting opening of the other composite wall.

[0012] In one embodiment of the present invention, a plurality of cement insert blocks are connected to the first side of the gypsum board sealing layer, and each cement insert block is connected to a steel bar fixing strip. The plurality of steel bar fixing strips are parallel to each other and perpendicular to the first side of the gypsum board sealing layer.

[0013] In one embodiment of the present invention, a plurality of casting holes are respectively provided on the first side of the outer wall panel and the first side of the inner wall panel, and a plurality of casting connecting blocks are respectively fixedly connected to the second side of the outer wall panel and the second side of the inner wall panel. The plurality of casting holes and the plurality of casting connecting blocks have corresponding heights and positions, so that the casting connecting block of the current composite wall can be inserted into the interior of the casting hole at the corresponding position of another composite wall.

[0014] In one embodiment of the present invention, the casting connection block has a two-layer trapezoidal connection structure.

[0015] In one embodiment of the present invention, the reinforcing bar fixing strip is provided with a plurality of first threaded holes, and the second connecting keel is provided with a second threaded hole. When the reinforcing bar fixing strip of the current composite wall is inserted into the insertion port of another composite wall through the fitting port of another composite wall, the first threaded hole and the second threaded hole are positioned opposite each other. The first threaded hole and the second threaded hole are internally connected with threaded rods, and the two ends of the threaded rods are threadedly connected with fixing nuts. The fixing nuts are fixed to the outside of the gypsum board sealing layer.

[0016] In one embodiment of the present invention, the second connecting keel is a combination of multiple straight pipes spliced ​​together, the straight pipes are connected to each other by welding, and the first connecting keel passes through the gypsum board sealing layer and is welded to the second connecting keel.

[0017] In one embodiment of the present invention, the outer wall panel and the rectangular plate are spaced apart from each other by the first connecting keel, and the inner wall panel and the rectangular plate are spaced apart from each other by the first connecting keel.

[0018] In one embodiment of the present invention, the thermal insulation layer and the fireproof partition layer are respectively provided with a plurality of vent holes, each of the vent holes extending horizontally from the surface of the thermal insulation layer or the fireproof partition layer to the interior of the casting hole at a corresponding height.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This invention provides a prefabricated composite wall with a dry connection structure, which can be fixed inside another prefabricated composite wall by means of cement interlocking blocks and steel fixing strips, thereby achieving enhanced fixation of the prefabricated composite panel.

[0021] 2. The prefabricated composite wall of the present invention can be cast into the casting hole by inserting a casting connection block of another prefabricated composite wall into the casting hole for casting. The casting hole can be used to fix the casting connection block and reinforce the spliced ​​wall surface.

[0022] 3. The prefabricated composite wall of the present invention can achieve thermal insulation and fireproofing effects through the setting of the thermal insulation layer and fireproof partition. The outer wall panel, gypsum board sealing layer and inner wall panel are all far apart from each other, thereby realizing the hollow partition to help isolate temperature.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a prefabricated composite wall with a dry connection structure provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of a prefabricated composite wall with a dry connection structure provided in an embodiment of the present invention;

[0026] Figure 3 This is a top view schematic diagram of a prefabricated composite wall with a dry connection structure provided in an embodiment of the present invention;

[0027] Figure 4 yes Figure 3 Enlarged view of region A in the middle;

[0028] Figure 5 yes Figure 3 Enlarged view of region B in the middle;

[0029] Figure 6 This is another three-dimensional structural diagram of a prefabricated composite wall with a dry connection structure provided in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Outer wall panel; 2-Insulation layer; 3-First connecting keel; 4-Gypsum board sealing layer; 5-Second connecting keel; 6-Cement interlocking block; 7-Reinforcing bar fixing strip; 8-Matching joint; 9-Matching joint; 10-First threaded hole; 11-Second threaded hole; 12-Threaded rod; 13-Fixing nut; 14-Inner wall panel; 15-Fireproof partition; 16-Pouring hole; 17-Pouring connecting block; 18-Ventilation hole. Detailed Implementation

[0032] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the prefabricated composite wall with a dry connection structure proposed according to the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of specific embodiments in conjunction with the accompanying drawings. Through the description of the specific embodiments, a more in-depth and concrete understanding can be gained of the technical means and effects adopted by the present invention to achieve its intended purpose. However, the accompanying drawings are for reference and illustration only and are not intended to limit the technical solutions of the present invention.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes said element.

[0035] Please see also Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a three-dimensional structural diagram of a prefabricated composite wall with a dry connection structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a prefabricated composite wall with a dry connection structure provided in an embodiment of the present invention; Figure 3This is a top view schematic diagram of a prefabricated composite wall with a dry connection structure provided by an embodiment of the present invention. The composite wall includes an outer wall panel 1, an inner wall panel 14, and a connecting and fixing mechanism disposed between the outer wall panel 1 and the inner wall panel 14. The fixing and connecting mechanism includes a second connecting keel 5 and a plurality of first connecting keels 3. The second connecting keel 5 is a rectangular frame structure parallel to the outer wall panel 1. A gypsum board sealing layer 4 is wrapped and connected to the outside of the rectangular frame structure. The gypsum board sealing layer 4 and the second connecting keel 5 are combined to form a rectangular plate disposed parallel between the outer wall panel 1 and the inner wall panel 14. A portion of the plurality of first connecting keels 3 is fixed between the outer wall panel 1 and the rectangular plate, and another portion of the plurality of first connecting keels 3 is fixed between the inner wall panel 14 and the rectangular plate.

[0036] Specifically, such as Figure 2 As shown, the second connecting keel 5 is composed of multiple straight pipes spliced ​​together in a longitudinal and transverse manner. The straight pipes are connected to each other by welding to form a rectangular frame structure. The outer side of this rectangular frame structure is covered with a gypsum board sealing layer 4, and the gypsum board sealing layer 4 and the second connecting keel 5 are combined to form a rectangular panel.

[0037] Each first connecting keel 3 has the same structure and dimensions, and is a rectangular steel bar. Each first connecting keel 3 passes through the gypsum board sealing layer 4 and is welded to the second connecting keel 5. In this embodiment, multiple first connecting keels 3 are evenly and symmetrically welded to both sides of the rectangular plate formed by the gypsum board sealing layer 4 and the second connecting keel 5. The first connecting keels 3 have a certain length, thereby separating the outer wall panel 1 from the rectangular plate by a certain distance; and separating the inner wall panel 14 from the rectangular plate by a certain distance. Preferably, the spacing is about 20mm.

[0038] In addition, an insulation layer 2 is provided on the side of the outer wall panel 1 away from the first connecting keel 3; a fireproof partition 15 is provided on the side of the inner wall panel 14 away from the first connecting keel 3. The outer wall panel 1, insulation layer 2, inner wall panel 14, and fireproof partition 15 are all rectangular panels with equal dimensions. The insulation layer 2 and fireproof partition 15 achieve both insulation and fireproofing effects. The outer wall panel 1, the first gypsum board sealing layer 4, and the inner wall panel 14 are all spaced far apart, thus creating a hollow partition to assist in temperature isolation. In this embodiment, the insulation layer 2 is a building exterior wall insulation material, generally composed of polymer mortar, fiberglass mesh, fire-retardant exterior wall insulation board, or fireproof insulation board, etc. The fireproof partition 15 is a graphite-modified cement-based insulation board, providing double protection and increasing fireproof and heat insulation effects.

[0039] A cement insert block 6 is connected to the first side of the gypsum board sealing layer 4, and a reinforcing bar 7 extending from the cement insert block 6 is connected to the cement insert block 6. In this embodiment, multiple cement insert blocks 6 are connected to the first side of the gypsum board sealing layer 4, and each cement insert block 6 is connected to a reinforcing bar 7. The multiple reinforcing bar 7 are parallel to each other and perpendicular to the first side of the gypsum board sealing layer 4. Preferably, in this embodiment, three cement insert blocks 6 are evenly arranged along the length of the first side (the short side of the gypsum board sealing layer 4 in this embodiment), and each cement insert block 6 is provided with a reinforcing bar 7. The three reinforcing bar 7 are parallel to each other and perpendicular to the first side of the gypsum board sealing layer 4. In this embodiment, the reinforcing bar 7 is pre-embedded in the cement insert block 6. The length of the reinforcing bar 7 is less than the short side of the gypsum board sealing layer 4.

[0040] Please see also Figure 3 , Figure 4 and Figure 6 A fitting opening 8 is provided on the second side of the gypsum board sealing layer 4, which is parallel to the first side (i.e., the other short side of the gypsum board sealing layer 4). An insertion opening 9 is provided on one side of the second connecting keel 5 inside the fitting opening 8. A cement insertion block 6 has the same height position as the fitting opening 8 and can be inserted into the fitting opening 8. Correspondingly, in this embodiment, the gypsum board sealing layer 4 is evenly provided with three fitting openings 8 along the length of the other short side. An insertion opening 9 is provided on one side of the second connecting keel 5 inside each fitting opening 8. Each cement insertion block 6 has a corresponding position to each fitting opening 8, so that the three cement insertion blocks 6 of the current precast composite wall can be correspondingly inserted into the three fitting openings 8 of another precast composite wall. Preferably, in this embodiment, the size of the fitting opening 8 is slightly larger than that of the cement insertion block 6, and the size of the fitting opening 9 is slightly larger than that of the steel reinforcement fixing strip 7, so as to insert the steel reinforcement fixing strip 7 of the current composite wall into the fitting opening 9 of the other composite wall through the fitting opening 8 of the other composite wall, and to position the cement insertion block 6 of the current composite wall in the fitting opening 8 of the other composite wall.

[0041] Furthermore, such as Figure 1 and Figure 6 As shown, the first side of the outer wall panel 1 and the first side of the inner wall panel 14 are respectively provided with a plurality of casting holes 16, and the second side of the outer wall panel 1 and the second side of the inner wall panel 14 are respectively fixedly connected with a plurality of casting connecting blocks 17. The plurality of casting holes 16 and the plurality of casting connecting blocks 17 have corresponding heights and positions, so that the casting connecting block 17 of the current composite wall can be inserted into the interior of the casting hole 16 at the corresponding position of another composite wall.

[0042] In this embodiment, four casting holes 16 are evenly provided on the first short side of the outer wall panel 1, and four casting connecting blocks 17 are provided at the corresponding positions on the second short side of the outer wall panel 1, so that during assembly, each casting connecting block 17 on the outer wall panel 1 of the current composite wall can be inserted into the interior of the casting hole 16 at the corresponding position on the outer wall panel 1 of another composite wall.

[0043] Similarly, four casting holes 16 are evenly provided on the first short side of the inner wall panel 14, and four casting connecting blocks 17 are provided at corresponding positions on the second short side of the inner wall panel 14, so that during assembly, each casting connecting block 17 on the inner wall panel 14 of the current composite wall can be inserted into the interior of the corresponding casting hole 16 on the inner wall panel 14 of the other composite wall. Preferably, the casting connecting block 17 has a two-layer trapezoidal connection structure to facilitate connection and fixation with the casting hole 16.

[0044] In addition, please see also Figure 2 and Figure 5 In this embodiment, the reinforcing bar fixing strip 7 is provided with multiple first threaded holes 10, and the second connecting keel 5 is provided with multiple second threaded holes 11. When the reinforcing bar fixing strip 7 of the current composite wall is inserted into the insertion port 9 through the fitting port 8 of another composite wall, the first threaded holes 10 and the second threaded holes 11 are positioned opposite each other. The first threaded holes 10 and the second threaded holes 11 are connected to the threaded rods 12, and the two ends of the threaded rods 12 are threaded to the fixing nuts 13. The fixing nuts 13 are fixed to the outside of the gypsum board sealing layer 4.

[0045] In other words, when the steel reinforcement fixing strip 7 of the current composite wall is inserted into the insertion port 9 through the fitting port 8 of another composite wall, the steel reinforcement fixing strip 7 extends into the interior of the second connecting keel 5. At this time, the first threaded hole 10 on the steel reinforcement fixing strip 7 is aligned with the second threaded hole 11 on the second connecting keel 5. The threaded rod 12 is then inserted into the corresponding first threaded hole 10 and second threaded hole 11. Subsequently, the two ends of the threaded rod 12 are screwed into the fixing nuts 13, thereby firmly connecting the steel reinforcement fixing strip 7 of the current composite wall to the second connecting keel 5 of the other composite wall.

[0046] Furthermore, in this embodiment, the insulation layer 2 and the fireproof partition 15 are respectively provided with multiple vent holes 18. Each vent hole 18 extends horizontally from the surface of the insulation layer 2 or the fireproof partition 15 to the interior of the pouring hole 16 at the corresponding height. This is used to observe whether the fine stone concrete inside the pouring hole 16 is densely filled, preventing the formation of voids in the concrete and ensuring that the concrete is not dense. In the specific assembly process, the fine stone concrete is first poured into the pouring hole 16. Then, each pouring connection block 17 of the current composite wall can be inserted into the pouring hole 16 at the corresponding position of another composite wall. Excess concrete will overflow from the vent holes 18, which also ensures that the concrete inside the pouring hole 16 is dense.

[0047] The working process of the prefabricated composite wall in this embodiment of the invention is as follows:

[0048] During assembly, the cement interlocking blocks 6 and steel reinforcement fixing strips 7 of the current composite wall are inserted into the fitting ports 8 and 9 inside the other composite wall for fixation. The steel reinforcement fixing strips 7 are fixed inside the other composite wall by multiple threaded rods 12 and fixing nuts 13, which can achieve its stability. At the same time, fine stone concrete is poured into the pouring hole 16. Then, each pouring connection block 17 of the other composite wall can be inserted into the pouring hole 16 at the corresponding position of the current composite wall. Excess concrete will overflow from the vent hole 18 to prevent the existence of internal voids and non-dense concrete, thereby further reinforcing the assembled wall panels. The insulation layer 2 and the fireproof partition layer 15 can achieve the effects of heat insulation and fireproofing. The outer wall panel 1, the gypsum board sealing layer 4 and the inner wall panel 14 are all far apart, thereby achieving a hollow partition layer to help isolate temperature.

[0049] This invention provides a prefabricated composite wall with a dry connection structure. Through the use of cement interlocking blocks and steel reinforcement strips, it can be inserted into the interior of another prefabricated composite wall for fixation, thereby strengthening the fixation of the prefabricated composite panel. The prefabricated composite wall of this invention has a pouring hole into which a pouring connection block of another prefabricated composite wall can be inserted for pouring, and the pouring hole can fix the pouring connection block, reinforcing the spliced ​​wall surface. The prefabricated composite wall of this invention achieves thermal insulation and fireproofing effects through the inclusion of an insulation layer and a fireproof partition. The outer wall panel, gypsum board sealing layer, and inner wall panel are all spaced apart, thus creating a hollow partition to further insulate against temperature.

[0050] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A composite wall system with a dry-connection structure, characterized in that, It includes an outer wall panel (1), an inner wall panel (14), and a connecting and fixing mechanism disposed between the outer wall panel (1) and the inner wall panel (14), wherein, The connecting and fixing mechanism includes a second connecting keel (5) and a plurality of first connecting keels (3), wherein the second connecting keel (5) is a rectangular frame structure parallel to the outer wall panel (1); the outer side of the rectangular frame structure is covered and connected with a gypsum board sealing layer (4), and the gypsum board sealing layer (4) and the second connecting keel (5) are combined to form a rectangular plate parallel to the outer wall panel (1) and the inner wall panel (14); A portion of the plurality of first connecting keels (3) is fixed between the outer wall panel (1) and the rectangular plate, and another portion of the plurality of first connecting keels (3) is fixed between the inner wall panel (14) and the rectangular plate; The first side of the gypsum board sealing layer (4) is connected to a cement insert block (6), and the cement insert block (6) is connected to a steel bar fixing strip (7) extending from the cement insert block (6); The gypsum board sealing layer (4) has a fitting opening (8) on its second side parallel to the first side. The second connecting keel (5) inside the fitting opening (8) has an insertion opening (9). The cement insertion block (6) has the same height position as the fitting opening (8) and can be inserted into the fitting opening (8). The outer wall panel (1) has an insulation layer (2) on the side away from the first connecting keel (3); the inner wall panel (14) has a fireproof partition (15) on the side away from the first connecting keel (3).

2. The composite wall with a dry connection structure according to claim 1, characterized in that, The size of the fitting opening (8) is slightly larger than that of the cement insert block (6), and the size of the fitting opening (9) is slightly larger than that of the steel bar fixing strip (7), so as to insert the steel bar fixing strip (7) of the current composite wall into the fitting opening (9) of the other composite wall through the fitting opening (8) of the other composite wall, and to position the cement insert block (6) of the current composite wall in the fitting opening (8) of the other composite wall.

3. The composite wall with a dry connection structure according to claim 1, characterized in that, The first side of the gypsum board sealing layer (4) is connected to a plurality of cement insert blocks (6), each cement insert block (6) is connected to a steel bar fixing strip (7), and the plurality of steel bar fixing strips (7) are parallel to each other and perpendicular to the first side of the gypsum board sealing layer (4).

4. The composite wall with a dry connection structure according to claim 1, characterized in that, The first side of the outer wall panel (1) and the first side of the inner wall panel (14) are respectively provided with a plurality of casting holes (16). The second side of the outer wall panel (1) and the second side of the inner wall panel (14) are respectively fixedly connected with a plurality of casting connecting blocks (17). The plurality of casting holes (16) and the plurality of casting connecting blocks (17) have corresponding heights and positions, so that the casting connecting block (17) of the current composite wall can be inserted into the interior of the casting hole (16) at the corresponding position of another composite wall.

5. The composite wall with a dry connection structure according to claim 4, characterized in that, The casting connection block (17) has a two-layer trapezoidal connection structure.

6. The composite wall with a dry connection structure according to claim 1, characterized in that, The steel reinforcement fixing strip (7) is provided with a plurality of first threaded holes (10), and the second connecting keel (5) is provided with a second threaded hole (11). When the steel reinforcement fixing strip (7) of the current composite wall is inserted into the insertion port (9) of another composite wall through the fitting port (8) of another composite wall, the first threaded hole (10) and the second threaded hole (11) are positioned opposite each other. The first threaded hole (10) and the second threaded hole (11) are internally connected with threaded rods (12). The two ends of the threaded rods (12) are threadedly connected with fixing nuts (13). The fixing nuts (13) are fixed to the outside of the gypsum board sealing layer (4).

7. The composite wall with a dry connection structure according to claim 1, characterized in that, The second connecting keel (5) is a combination of multiple straight pipes spliced ​​together. The straight pipes are connected to each other by welding. The first connecting keel (3) passes through the gypsum board sealing layer (4) and is welded to the second connecting keel (5).

8. The composite wall with a dry connection structure according to claim 1, characterized in that, The outer wall panel (1) and the rectangular plate are spaced apart by the first connecting keel (3), and the inner wall panel (14) and the rectangular plate are spaced apart by the first connecting keel (3).

9. The composite wall with a dry connection structure according to any one of claims 4 to 8, characterized in that, The insulation layer (2) and the fireproof partition (15) are provided with a plurality of vent holes (18), each of the vent holes (18) extending horizontally from the surface of the insulation layer (2) or the fireproof partition (15) to the interior of the casting hole (16) at the corresponding height.

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