Connecting piece and assembly type composite self-heat-preservation wallboard based on connecting piece

Abstract

The utility model discloses a connecting piece and an assembly type composite self-heat-preservation wallboard based on the connecting piece, and belongs to the technical field of heat preservation wall bodies. The connecting piece comprises a pulling piece, a left side positioning piece and a right side positioning piece; a left reinforcing steel bar clamping groove is formed in the position close to the left end of the pulling piece, a right reinforcing steel bar clamping groove is formed in the position close to the right end of the pulling piece, a cross-shaped clamping groove is formed in the left end face of the left positioning piece, and a pulling piece inserting groove is further formed in the left positioning piece. According to the assembly type composite self-heat-preservation wallboard, the first steel bar net and the second steel bar net are embedded in the first pouring layer and the second pouring layer respectively, the strength of the first pouring layer and the strength of the second pouring layer are improved, and meanwhile the first pouring layer and the second pouring layer can be connected with the heat preservation board through the first steel bar net and the second steel bar net; the first pouring layer and the second pouring layer are prevented from falling off, so that the wallboard has good overall strength and thermal insulation performance; adjacent wallboards are connected in a matched mode through the protruding parts and the grooves, and then the wallboards are installed on a building frame through fixing pieces.

Description

Technical Field

[0001] The utility model relates to a connecting piece and an assembled composite self-insulating wall panel based on the same, belonging to the technical field of insulating walls. Background Art

[0002] After the assembled wall panel is prefabricated in the factory and transported to the construction site for installation on the building frame, in order to improve the insulation performance of the assembled wall panel, the prior art adopts the method of sandwiching an insulation board in the wall panel or compounding the insulation board with a protective layer through a connecting piece. However, the current compounding method is not reasonable enough, resulting in unqualified strength of the protective layers on both sides of the insulation board. Moreover, some existing wall panels compound the insulation board with the protective layers on both sides by bonding, which is prone to problems such as cracking, peeling, and poor durability during later use.

[0003] It should be noted that the above content belongs to the technical cognition scope of the inventor and does not necessarily constitute the prior art. Summary of the Utility Model

[0004] In order to solve the problems existing in the prior art, the utility model provides a connecting piece and an assembled composite self-insulating wall panel based on the same, which have good overall strength and insulation performance and stable structure.

[0005] The utility model realizes the above purpose by adopting the following technical solutions:

[0006] On the one hand, the utility model provides a connecting piece, which includes a tab, a left positioning member and a right positioning member;

[0007] The tab extends linearly between the left end and the right end, and the tab has two narrow side faces and two wide side faces parallel to its extending direction; a left steel bar slot is opened near the left end of the tab, penetrating through the wide side face of the tab, the notch of the left steel bar slot is opened on the top narrow side face of the tab, and the bottom of the left steel bar slot extends towards the left end of the tab; a right steel bar slot is opened near the right end of the tab, penetrating through the wide side face of the tab, and the notch of the right steel bar slot is opened on the top narrow side face of the tab;

[0008] A cross slot for the cross intersection part of the steel bar mesh to be inserted is opened on the left end face of the left positioning member, the cross slot is composed of a horizontal steel bar slot and a vertical steel bar slot intersecting vertically, the slot depth of the vertical steel bar slot is greater than that of the horizontal steel bar slot, and a tab slot for the tab to pass through is also opened on the left positioning member, and the tab slot intersects vertically with the horizontal steel bar slot;

[0009] A cross slot for the cross intersection part of the steel bar mesh to be inserted is opened on the right end face of the right positioning member.

[0010] Optionally, a pull tab slot penetrating the left and right end faces thereof is further formed on the right positioning member, and the pull tab slot intersects the transverse rib slot perpendicularly.

[0011] Optionally, the pull tab slot on the right positioning member penetrates downward through the bottom surface of the right positioning member.

[0012] Optionally, the notch of the right reinforcing bar slot is inclined towards the left end of the pull tab.

[0013] On the other hand, the present utility model further provides an assembled composite self-insulating wall panel, which comprises a first casting layer, a heat-insulating board and a second casting layer arranged in sequence, and further comprises a plurality of the connecting members;

[0014] A first steel bar mesh and a second steel bar mesh are respectively embedded in the first casting layer and the second casting layer;

[0015] The right end face of the left positioning member abuts against the left board surface of the heat-insulating board, and the left end face of the right positioning member abuts against the right board surface of the heat-insulating board;

[0016] The cross intersection part of the first steel bar mesh is clamped into the cross slot on the left positioning member, and the cross intersection part of the second steel bar mesh is clamped into the cross slot on the right positioning member;

[0017] The middle part of the pull tab passes through the heat-insulating board, and the left end of the pull tab passes through the pull tab slot on the left positioning member. The transverse rib of the first steel bar mesh clamped into the cross slot is also clamped into the bottom of the left reinforcing bar slot on the pull tab at the same time; the transverse rib of the second steel bar mesh is also clamped into the right reinforcing bar slot on the pull tab;

[0018] The left end and the right end of the pull tab are respectively located in the first casting layer and the second casting layer, and the first casting layer and the second casting layer are formed by curing a slurry on the surface of the heat-insulating board.

[0019] Optionally, the first casting layer and the second casting layer are made of lightweight concrete or foamed cement;

[0020] The heat-insulating board is any one of SEPS board, EPS board, XPS board, SXPS board, rock wool board and glass wool board.

[0021] Optionally, a convex part and a concave part are respectively arranged on the left and right side surfaces of the wall panel, and the cross-sectional shapes of the convex part and the concave part are diamond, trapezoid or semi-circular.

[0022] Optionally, the assembled composite self-insulating wall panel provided by the present utility model further comprises a fixing member, and the fixing member comprises an angle steel, a back plate and a bolt and nut assembly;

[0023] The angle steel is composed of a first side plate and a second side plate which are vertically arranged;

[0024] The bolt-nut assembly sequentially passes through the back panel, the wall panel, and the first side plate of the angle steel;

[0025] The second side plate of the angle steel is connected to the ground, the building frame steel beam, or the building frame concrete beam.

[0026] Optionally, the fixing member further includes an expansion bolt. The second side plate abuts against the ground, the building frame steel beam, or the building frame concrete beam, and is welded to the building frame steel beam or connected to the ground or the building frame concrete beam through the expansion bolt.

[0027] Optionally, reserved holes for the bolt-nut assembly to pass through are respectively arranged at the upper and lower parts of the front and back of the wall panel, and reserved grooves are arranged on the wall panel surface around the reserved holes;

[0028] The first side plate of the angle steel abuts in the reserved groove on the front of the wall panel, and the back panel abuts in the reserved groove on the back of the wall panel;

[0029] A strip-shaped hole for the bolt and the expansion bolt to pass through is formed in the angle steel.

[0030] The beneficial effects of the present application include but are not limited to:

[0031] The connecting member provided by the present utility model has a simple structure and is convenient for installation, can connect the insulation board with the first steel mesh and the second steel mesh, prevent the position deviation of the first steel mesh and the second steel mesh during the production of the prefabricated composite self-insulating wall panel, and keep the required spacing distance between the first steel mesh and the second steel mesh and the board surface of the insulation board.

[0032] For the prefabricated composite self-insulating wall panel provided by the present utility model, the first steel mesh and the second steel mesh are respectively embedded in the first casting layer and the second casting layer. While improving the strength of the first casting layer and the second casting layer, the first steel mesh and the second steel mesh can also be used to perform composite connection between the first casting layer and the second casting layer and the insulation board, prevent the first casting layer and the second casting layer from falling off, and enable the prefabricated composite self-insulating wall panel to have good overall strength and insulation performance.

[0033] For the prefabricated composite self-insulating wall panel provided by the present utility model, adjacent wall panels are connected by the cooperation of the convex part and the groove, and then installed on the building frame through the fixing member, with stable structure and high construction efficiency.

[0034] The prefabricated composite self-insulating wall panel provided by the present utility model can be used in places such as schools, hospitals, libraries, laboratories, office buildings, etc.; it can also be used in the outer walls of some large buildings, such as hotels, banks, shopping malls, residential buildings, etc. Description of the Drawings

[0035] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0036] Figure 1 It is a schematic diagram of the composite structure of the connecting piece, the thermal insulation board, the left positioning piece, and the right positioning piece;

[0037] Figure 2 is Figure 1 a partial enlarged view of;

[0038] Figure 3 It is a schematic diagram of the structure of the pull tab;

[0039] Figure 4 It is a perspective view of the left positioning piece observed from the left side;

[0040] Figure 5 It is a perspective view of the left positioning piece observed from the right side;

[0041] Figure 6 It is a perspective view of the right positioning piece in Embodiment 1 observed from the left side;

[0042] Figure 7 It is a perspective view of the right positioning piece in Embodiment 1 observed from the right side;

[0043] Figure 8 It is a schematic diagram of the connection relationship between the connecting piece, the first steel mesh, and the second steel mesh provided in Embodiment 1;

[0044] Figure 9 It is a schematic diagram of the composite structure of the connecting piece, the thermal insulation board, the first steel mesh, and the second steel mesh provided in Embodiment 1 observed from the right side;

[0045] Figure 10 It is a schematic diagram of the connection relationship between the connecting piece, the first steel mesh, and the second steel mesh provided in Embodiment 2;

[0046] Figure 11 It is a schematic diagram of the composite structure of the connecting piece, the thermal insulation board, the first steel mesh, and the second steel mesh provided in Embodiment 2 observed from the right side;

[0047] Figure 12 It is a perspective view of the right positioning piece in Embodiment 3 observed from the left side;

[0048] Figure 13 It is a perspective view of the right positioning piece in Embodiment 3 observed from the right side;

[0049] Figure 14 It is a schematic diagram of the connection relationship between the connecting piece, the first steel mesh, and the second steel mesh provided in Embodiment 3;

[0050] Figure 15 Schematic diagram of the composite structure of the connecting piece provided for Example 3, the insulation board, the first steel mesh, and the second steel mesh, observed from the right side;

[0051] Figure 16 Cross-sectional schematic diagram of the assembled composite self-insulating wall panel provided by the present utility model;

[0052] Figure 17 Three-dimensional view of the assembled composite self-insulating wall panel provided by the present utility model;

[0053] Figure 18 Schematic diagram of the fixing part;

[0054] Figure 19 Schematic diagram of the connection between the assembled composite self-insulating wall panel provided by the present utility model and the building frame concrete beam and the ground;

[0055] Figure 20 Schematic diagram of the connection between the assembled composite self-insulating wall panel provided by the present utility model and the building frame steel beam and the ground;

[0056] In the figure, 1, ground; 2 building frame steel beam; 3, building frame concrete beam; 100, insulation board; 210, first casting layer; 220, second casting layer; 310, first steel mesh; 320, second steel mesh; 400, tab; 410, left steel bar slot; 420, right steel bar slot; 510, left positioning part; 520, right positioning part; 610, cross slot; 611, horizontal bar slot; 612, vertical bar slot; 620, tab slot; 710, protrusion; 720, groove; 810, angle steel; 811, first side plate; 812, second side plate; 813, strip hole; 820, back plate; 830, bolt and nut assembly; 840, expansion bolt; 850, gasket; 910, reserved hole; 920, reserved groove. Detailed implementation manners

[0057] To clearly illustrate the technical features of this solution, the present utility model will be elaborated in detail below through specific implementation manners and in combination with its attached drawings.

[0058] It should be noted that many specific details are set forth in the following description to facilitate a thorough understanding of the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0059] Such as Figure 1 and Figure 16As shown in the figure, the prefabricated composite self-insulating wall panel of the present utility model is formed by laminating an insulating board 100 and first casting layers 210 and second casting layers 220 on both sides thereof. First steel bar meshes 310 and second steel bar meshes 320 are respectively embedded in the first casting layers 210 and the second casting layers 220.

[0060] The connecting member of the present utility model is used to connect the insulating board 100 with the first steel bar mesh 310 and the second steel bar mesh 320, and can prevent the positions of the first steel bar mesh 310 and the second steel bar mesh 320 from shifting during the production of the prefabricated composite self-insulating wall panel, so that a required spacing distance is maintained between the first steel bar mesh 310 and the second steel bar mesh 320 and the plate surface of the insulating board 100.

[0061] First steel bar meshes 310 and second steel bar meshes 320 are respectively embedded in the first casting layers 210 and the second casting layers 220. While improving the strength of the first casting layers 210 and the second casting layers 220, the first casting layers 210 and the second casting layers 220 can also be integrally connected to the insulating board 100 through the first steel bar meshes 310 and the second steel bar meshes 320 to prevent the first casting layers 210 and the second casting layers 220 from falling off, so that the prefabricated composite self-insulating wall panel has good overall strength and heat insulation performance.

[0062] The steel bar mesh is a mesh structure formed by tying or welding horizontal and vertical steel bars. It is necessary to make the first steel bar mesh 310 and the second steel bar mesh 320 be respectively located in the middle of the first casting layer 210 and the second casting layer 220, so as to effectively increase the strength of the first casting layer 210 and the second casting layer 220 through the first steel bar mesh 310 and the second steel bar mesh 320, and ensure that the plate surface of the insulating board 100 is closely attached and laminated with the first casting layer 210 and the second casting layer 220.

[0063] The connecting member and the structure of the prefabricated composite self-insulating wall panel provided by the present utility model will be described below through specific embodiments.

[0064] Embodiment 1:

[0065] As Figure 2 shown in the figure, the connecting member provided in this embodiment includes a tab 400, a left positioning member 510 and a right positioning member 520. For the convenience of description, the first steel bar mesh 310, the second steel bar mesh 320 and the insulating board 100 are shown in dotted lines.

[0066] As Figure 3As shown in the figure, the tab 400 is a long plate-like structure. The tab 400 extends linearly between the left end and the right end. The tab 400 has two narrow side faces and two wide side faces parallel to its extension direction. A left-side steel bar slot 410 penetrating the wide side face of the tab 400 is provided near the left end of the tab 400. The notch of the left-side steel bar slot 410 is opened on the top narrow side face of the tab 400, and the bottom of the left-side steel bar slot 410 extends towards the left end of the tab 400. A right-side steel bar slot 420 penetrating the wide side face of the tab 400 is provided near the right end of the tab 400. The notch of the right-side steel bar slot 420 is opened on the top narrow side face of the tab 400.

[0067] Preferably, the notch of the right-side steel bar slot 420 is inclined towards the left end of the tab 400.

[0068] As Figure 4 and Figure 5 shown in the figure, a cross slot 610 for the cross intersection part of the steel bar mesh to be inserted is provided on the left end face of the left positioning member 510. The cross slot 610 is formed by the vertical intersection of a horizontal bar slot 611 and a vertical bar slot 612. The slot depth of the vertical bar slot 612 is greater than that of the horizontal bar slot 611. A tab slot 620 for the tab 400 to pass through is also provided on the left positioning member 510. The tab slot 620 intersects the horizontal bar slot 611 vertically.

[0069] As Figure 6 and Figure 7 shown in the figure, a cross slot 610 for the cross intersection part of the steel bar mesh to be inserted is provided on the right end face of the right positioning member 520.

[0070] The vertical bars of the first steel bar mesh 310 and the second steel bar mesh 320 are close to the plate surface of the insulation board 100. The horizontal bar and the vertical bar at the cross intersection part are respectively inserted into the horizontal bar slot 611 and the vertical bar slot 612.

[0071] As Figure 2As shown in the figure, when the connecting piece provided by the utility model is in use, a first steel mesh 310 and a left positioning piece 510 are placed on the left side plate surface of the insulation board 100, so that the cross part of the first steel mesh 310 is clamped into the cross slot 610 on the left positioning piece 510. Hold the left end of the pull tab 400 and push the pull tab 400 forward. During the pushing process, the horizontal bars of the first steel mesh 310 are clamped into the left steel bar slot 410 on the pull tab 400, and the right end of the pull tab 400 is inserted into the insulation board 100 after passing through the pull tab slot 620 on the left positioning piece 510. Continue to push the pull tab 400 to make the horizontal bars of the first steel mesh 310 located at the bottom of the left steel bar slot 410. Then, a second steel mesh 320 and a right positioning piece 520 are placed on the right side plate surface of the insulation board 100, so that the cross part of the second steel mesh 320 is clamped into the cross slot 610 on the right positioning piece 520, and the horizontal bars of the second steel mesh 320 are clamped into the right steel bar slot 420 on the pull tab 400.

[0072] The left - right, up - down positions of the pull tab 400 are fixed on the insulation board 100. The left positioning piece 510 is sleeved on the pull tab 400. The first steel mesh 310 and the second steel mesh 320 are clamped into the left steel bar slot 410 and the right steel bar slot 420 on the pull tab 400 respectively, so that the up - down position of the first steel mesh 310 is fixed, and the left - right and down positions of the second steel mesh 320 are fixed. The cross parts of the first steel mesh 310 and the second steel mesh 320 are also clamped into the cross slots 610 on the left positioning piece 510 and the right positioning piece 520 respectively, so that the left - right position of the first steel mesh 310 is fixed.

[0073] Furthermore, the middle part of the pull tab 400 passes through the insulation board 100. The insulation board 100 is clamped between the left positioning piece 510 and the right positioning piece 520. Restricted by the first steel mesh 310 and the left positioning piece 510, the insulation board 100 cannot move to the left. Restricted by the second steel mesh 320 and the right positioning piece 520, the insulation board 100 cannot move to the right. In this way, the positions between the insulation board 100, the first steel mesh 310 and the second steel mesh 320 are fixed.

[0074] Generally, a plurality of left positioning pieces 510 and right positioning pieces 520 need to be distributed on the board surface of each square meter of the insulation board 100, which can support the first steel mesh 310 and the second steel mesh 320, so that the first steel mesh 310 and the second steel mesh 320 keep the required distance from the insulation board 100.

[0075] Figure 8 and Figure 9 As shown in the figure is a schematic assembly state diagram of the pull tab 400, the left positioning piece 510, the right positioning piece 520, the first steel mesh 310 and the second steel mesh 320 in Embodiment 1.

[0076] Typically, after the transverse reinforcement of the second reinforcement mesh 320 is inserted into the right reinforcement groove 420 , the second reinforcement mesh 320 and the pull tab 400 are preferably tied and fixed by a tying wire.

[0077] Embodiment 2:

[0078] like Figure 10 and Figure 11 As shown in , the difference between this embodiment and embodiment 1 is that: the right positioning member 520 is also provided with a pull-tab slot 620 that passes through its left and right end faces, and the pull-tab slot 620 is vertically intersected with the transverse rib slot 611, that is, the right positioning member 520 and the left positioning member 510 adopt the same structure.

[0079] During assembly, the pull tab 400 needs to pass through the pull tab slot 620 on the right positioning piece 520 after passing through the insulation board 100, and the cross-intersection part of the second steel mesh 320 is clamped into the cross clamping groove 610, and the transverse reinforcement is also clamped into the right steel bar clamping groove 420 at the same time.

[0080] Figure 10 and Figure 11 Schematic diagram of the assembly state of the pull tab 400 , the left positioning member 510 , the right positioning member 520 , the first steel mesh 310 , and the second steel mesh 320 in Embodiment 2 is shown in FIG.

[0081] Embodiment 3:

[0082] like Figure 12 and Figure 13 As shown in , the difference between this embodiment and embodiment 2 is that the pull-tab slot 620 on the right positioning member 520 goes downward through the bottom surface of the right positioning member 520. During assembly, the pull-tab slot 620 on the right positioning member 520 can be directly mounted on the right end of the pull-tab 400, which is more convenient to install.

[0083] Figure 14 and Figure 15 Schematic diagram of the assembly state of the pull tab 400 , the left positioning member 510 , the right positioning member 520 , the first steel mesh 310 , and the second steel mesh 320 in Embodiment 3 is shown in FIG.

[0084] On the other hand, Figure 16 As shown in , the assembled composite self-insulating wall panel provided by the utility model includes a first pouring layer 210, an insulation board 100 and a second pouring layer 220 arranged in sequence, and also includes a plurality of connectors described in Examples 1 to 3.

[0085] A first steel mesh 310 and a second steel mesh 320 are respectively embedded in the first casting layer 210 and the second casting layer 220;

[0086] The right end face of the left positioning member 510 abuts against the left board surface of the heat preservation board 100, and the left end face of the right positioning member 520 abuts against the right board surface of the heat preservation board 100;

[0087] The cross intersection part of the first steel bar mesh 310 is clamped into the cross slot 610 on the left positioning member 510, and the cross intersection part of the second steel bar mesh 320 is clamped into the cross slot 610 on the right positioning member 520;

[0088] The middle part of the pulling piece 400 passes through the heat preservation board 100, and the left end of the pulling piece 400 passes through the pulling piece slot 620 on the left positioning member 510. The horizontal bars of the first steel bar mesh 310 clamped into the cross slot 610 are also clamped into the bottom of the left steel bar slot 410 on the pulling piece 400; The horizontal bars of the second steel bar mesh 320 are also clamped into the right steel bar slot 420 on the pulling piece 400;

[0089] The left end and the right end of the pulling piece 400 are respectively located in the first casting layer 210 and the second casting layer 220, and the first casting layer 210 and the second casting layer 220 are solidified and formed on the surface of the heat preservation board 100 by building slurry.

[0090] Generally, the first casting layer and the second casting layer are made of lightweight concrete or foamed cement, and the foamed cement is mixed with vitrified microspheres or polystyrene particles. The building slurry is made of conventional raw materials in the prior art. For example, the raw materials for making ALC wall panels or AAC wall panels can be used. The left positioning member and the right positioning member can be formed by casting with the same raw materials.

[0091] The heat preservation board is any one of SEPS board, EPS board, XPS board, SXPS board, rock wool board, and glass wool board.

[0092] Generally, the thicknesses of the first casting layer 210 and the second casting layer 220 are 45 - 55 mm, and the thickness of the heat preservation board 100 is determined according to the actual heat preservation requirements.

[0093] Furthermore, as Figure 17 shown in, the left and right side surfaces of the assembled composite self-insulating wall panel provided by the present utility model are respectively provided with a convex part 710 and a concave part 720, and the cross-sectional shapes of the convex part 710 and the concave part 720 are diamond-shaped, trapezoidal or semi-circular. During on-site assembly, the convex part 710 of the adjacent left and right wall panels is fitted with the concave part 720 to improve the integrity of the wall surface.

[0094] Furthermore, in order to facilitate the installation of the assembled composite self-insulating wall panel provided by the utility model on the building frame, the present utility model also provides a fixing member.

[0095] As Figure 18 shown in, the fixing member specifically includes an angle steel 810, a back plate 820 and a bolt and nut assembly 830;

[0096] The angle steel 810 is composed of a first side plate 811 and a second side plate 812 which are vertically arranged;

[0097] The bolt-nut assembly 830 sequentially passes through the back plate 820, the wall panel, and the first side plate 811 of the angle steel 810;

[0098] The second side plate 812 of the angle steel 810 is connected to the ground 1, the building frame steel beam 2, or the building frame concrete beam 3.

[0099] Specifically, the second side plate 812 abuts against the ground 1, the building frame steel beam 2, or the building frame concrete beam 3.

[0100] For the convenience of connection with the ground or the building frame concrete beam, the fixing member further includes an expansion bolt 840. As Figure 19 shown, when connecting to the ground 1 or the building frame concrete beam 3, the second side plate 812 is connected to the corresponding structure through the expansion bolt 840.

[0101] As Figure 20 shown, when connecting to the building frame steel beam 2, the second side plate 812 can be fixedly welded to the building frame steel beam 2.

[0102] Specifically, the upper and lower parts of the front and back of the assembled composite self-insulating wall panel provided by the utility model are respectively provided with reserved holes 910 for the bolt-nut assembly to pass through, and reserved grooves 920 are arranged on the wall panel surface around the reserved holes 910.

[0103] The first side plate of the angle steel 810 abuts in the reserved groove on the front of the wall panel, and the back plate abuts in the reserved groove on the back of the wall panel; a strip-shaped hole 813 for the bolt and the expansion bolt to pass through is formed on the angle steel. The length direction of the strip-shaped hole is perpendicular to the intersection line of the first side plate and the second side plate. On the premise of facilitating the bolt-nut assembly and the expansion bolt to pass through the strip-shaped hole, the first side plate can also abut against the wall panel, and the second side plate can abut against the building frame concrete beam or the building frame steel beam.

[0104] During installation, stand up the assembled composite self-insulating wall panel provided by the utility model, adjust the position of the back plate to be in the reserved groove on the back of the wall panel, place a gasket 850 on the bolt, pass the bolt through the reserved hole on the back plate, the wall panel, and the first side plate of the angle steel, place a front-side gasket on the bolt, adjust the position of the angle steel so that the first side plate is in the reserved groove on the front of the wall panel and the second side plate abuts against the building frame steel beam or the building frame concrete beam, and then tighten the nut.

[0105] When installing the wall panel on the right or left side, make it cooperate with the adjacent wall panel through the convex part and the concave groove.

[0106] Finally, plaster the reserved slot part to cover the exposed parts of the bolt and nut assembly.

[0107] The prefabricated composite self-insulating wall panel provided by the present utility model is prefabricated and formed in a factory. During production, a first steel mesh 310 is arranged on the left side of the insulation board 100, and a second steel mesh 320 is arranged on the right side of the insulation board 100. Then, the insulation board 100 is connected to the first steel mesh 310 and the second steel mesh 320 through the pull tabs 400, the left positioning members 510, and the right positioning members 520 to form Figure 1 the composite structure as shown. The composite structure is placed in a mold, autoclaved lightweight concrete slurry is injected on both sides of the insulation board 100 and autoclaved and cured. After forming, the mold is removed to manufacture the prefabricated composite self-insulating wall panel provided by the present utility model.

[0108] When the convex parts, grooves, and reserved slots are arranged on the wall panel, the mold should adopt corresponding shapes, and auxiliary forming structures should be placed at the reserved hole parts.

[0109] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0110] In the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0111] The above specific implementation manners cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art of this technology, any alternative improvement or transformation made to the implementation manner of the present utility model falls within the protection scope of the utility model.

[0112] Where the present utility model is not described in detail is the well-known technology of those skilled in the art of this technology.

Claims

1. A connecting piece, characterized in that: It includes a pull tab, a left positioning piece, and a right positioning piece; The pull tab extends in a straight line between the left end and the right end, and the pull tab has two narrow sides and two wide sides parallel to the extension direction thereof; a left steel bar clamping groove penetrating the wide side of the pull tab is provided near the left end of the pull tab, the notch of the left steel bar clamping groove is provided on the top narrow side of the pull tab, and the bottom of the left steel bar clamping groove extends toward the left end of the pull tab; a right steel bar clamping groove penetrating the wide side of the pull tab is provided near the right end of the pull tab, and the notch of the right steel bar clamping groove is provided on the top narrow side of the pull tab; The left end surface of the left positioning piece is provided with a cross slot for the cross-intersection of the steel mesh to be inserted, the cross slot is formed by the perpendicular intersection of the transverse reinforcement slot and the vertical reinforcement slot, the slot depth of the vertical reinforcement slot is greater than the slot depth of the transverse reinforcement slot, and the left positioning piece is also provided with a pull-tab slot for the pull-tab to pass through, the pull-tab slot is perpendicularly intersected with the transverse reinforcement slot; The right end surface of the right positioning piece is provided with a cross slot for the cross-intersection part of the steel mesh to be inserted.

2. The connecting piece according to claim 1, characterized in that: The right positioning piece is also provided with a pull-tab slot penetrating the left and right end faces thereof, and the pull-tab slot is vertically intersected with the transverse rib slot.

3. The connecting piece according to claim 2, characterized in that: The pull-tab slot on the right positioning piece passes downward through the bottom surface of the right positioning piece.

4. The connector according to claim 1, characterized in that: The notch of the right steel bar slot is inclined toward the left end of the pull tab.

5. An assembled composite self-insulating wall panel, characterized in that: It comprises a first casting layer, an insulation board and a second casting layer which are arranged in sequence, and also comprises a plurality of connectors according to any one of claims 1 to 4; A first steel mesh and a second steel mesh are respectively embedded in the first casting layer and the second casting layer; The right end surface of the left positioning member abuts against the left plate surface of the insulation board, and the left end surface of the right positioning member abuts against the right plate surface of the insulation board; The cross-intersection part of the first steel mesh is inserted into the cross-intersection groove on the left positioning piece, and the cross-intersection part of the second steel mesh is inserted into the cross-intersection groove on the right positioning piece; The middle part of the pull tab passes through the insulation board and the left end of the pull tab passes through the pull tab slot on the left positioning piece. The transverse reinforcement of the first steel mesh inserted into the cross slot is also inserted into the bottom of the left steel bar slot on the pull tab. The transverse reinforcement of the second steel mesh is also inserted into the right steel bar slot on the pull tab. The left end and the right end of the pull tab are respectively located in the first casting layer and the second casting layer, and the first casting layer and the second casting layer are formed on the surface of the insulation board by solidifying the slurry.

6. The assembled composite self-insulating wallboard according to claim 5, characterized in that: The first casting layer and the second casting layer are made of lightweight concrete or foamed cement; The thermal insulation board is any one of a SEPS board, an EPS board, an XPS board, an SXPS board, a rock wool board, and a glass wool board.

7. The assembled composite self-insulating wall panel according to claim 5, characterized in that: The left and right sides of the wall panel are respectively provided with a raised portion and a groove, and the cross-sectional shapes of the raised portion and the groove are rhombus, trapezoid or semicircle.

8. The assembled composite self-insulating wall panel according to claim 5, characterized in that: Also included is a fixing member, the fixing member comprising an angle steel, a back plate and a bolt and nut assembly; The angle steel is composed of a first side plate and a second side plate arranged vertically; The bolt and nut assembly passes through the back plate, the wall plate, and the first side plate of the angle steel in sequence; The second side plate of the angle steel is connected to the ground, the building frame steel beam or the building frame concrete beam.

9. The assembled composite self-insulating wall panel according to claim 8, characterized in that: The fixing member also includes expansion bolts. The second side plate is abutted against the ground, a building frame steel beam or a building frame concrete beam. The second side plate is welded to the building frame steel beam, or connected to the ground or the building frame concrete beam through expansion bolts.

10. The assembled composite self-insulating wall panel according to claim 9, characterized in that: The upper and lower parts of the front and back sides of the wall panels are respectively provided with reserved holes for the bolt and nut assemblies to pass through, and the wall panel surface around the reserved holes is provided with reserved grooves; The first side plate of the angle steel is against the reserved groove on the front side of the wall panel, and the back plate is against the reserved groove on the back side of the wall panel; The angle steel is provided with strip holes for bolts and expansion bolts to pass through.

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