Prefabricated sandwich thermal insulation external wall panel

Abstract

The utility model discloses a prefabricated sandwich thermal insulation external wall panel, and aims to solve the problems that the connection strength between an external wall panel and a thermal insulation material is not enough, the layering phenomenon is easy to occur, the integral pre-pouring integrity of the external wall panel is poor, and the product quality is influenced. According to the technical scheme, the prefabricated sandwich heat preservation external wall panel is characterized by comprising a wall panel forming mold and a heat preservation plate, the wall panel forming mold is arranged in a concave shape, the heat preservation plate is clamped into a concave part of the wall panel forming mold, and a gap for cement pouring is formed between the heat preservation plate and the wall panel forming mold; a plurality of first threaded holes are formed in the wallboard forming mold, a plurality of second threaded holes are formed in the positions, corresponding to the first threaded holes, of the heat preservation board, and fixing threaded rods are arranged between the first threaded holes and the second threaded holes. According to the prefabricated sandwich heat preservation external wall panel, the prefabricated external wall panel and the heat preservation plate are stably fixed together before the prefabricated external wall panel is formed, so that the external wall panel is poured more stably, and the layering condition is avoided.

Description

Technical Field

[0001] The utility model relates to a precast exterior wall panel, and more specifically, to a precast sandwich thermal insulation exterior wall panel. Background Technique

[0002] With the continuous acceleration of the housing industrialization process in China, prefabricated buildings are more and more widely used due to their advantages such as high mechanization degree, short construction period, and convenient installation process. The application scope of precast components is also constantly increasing, including precast interior wall panels, exterior wall panels, composite slabs, air-conditioning panels, stairs, precast beams, precast columns, etc.

[0003] Especially in residential projects, the use of precast exterior wall panels is more prominent. However, the following problems exist in the prior art: the connection strength between the exterior wall panel and the thermal insulation material is insufficient, and delamination is likely to occur, resulting in poor overall pre-casting integrity of the exterior wall panel and affecting the product quality. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a precast sandwich thermal insulation exterior wall panel, which can stably fix the exterior wall panel and the thermal insulation board together before the precast exterior wall panel is formed, so that the exterior wall panel is more stable during casting and delamination does not occur.

[0005] The above technical purpose of the utility model is achieved by the following technical solutions: a precast sandwich thermal insulation exterior wall panel, including a wall panel forming mold and a thermal insulation board. The wall panel forming mold is arranged in a concave shape. The thermal insulation board is clamped into the concave part of the wall panel forming mold. A gap for pouring cement is arranged between the thermal insulation board and the wall panel forming mold. A plurality of first threaded holes are provided on the wall panel forming mold. A plurality of second threaded holes are arranged at the positions of the thermal insulation board corresponding to the plurality of first threaded holes. And fixing threaded rods are arranged between the plurality of first threaded holes and the second threaded holes.

[0006] By adopting the above technical solution, before pouring the precast thermal insulation exterior wall panel, the staff snap the specified thermal insulation board with an anti-corrosion coating on its surface into the wall panel forming mold and restrict the position of the thermal insulation board. The staff first align the fixed threaded rod with the position of the first threaded hole, and then by rotating the fixed threaded rod, make the position of the fixed threaded rod correspond to the second threaded hole opened on the thermal insulation board. As the first threaded rod rotates gradually, the first threaded rod and the second threaded rod can be gradually and respectively screwed into the first threaded hole and the second threaded hole. Then the second threaded rod can fix the position of the thermal insulation board, preventing the thermal insulation board from shaking or displacing in the wall panel forming mold. Then, after fixing the thermal insulation board, pour the cement into the wall panel forming mold. And the gap or delamination state between the cement and the thermal insulation board can be reduced during the fixing of the thermal insulation board. After the cement pouring is completed or the cement is formed, the fixed threaded rod part can be separated to form the precast thermal insulation exterior wall panel. And because there is no gap and delamination between the cement and the thermal insulation board in the produced thermal insulation exterior wall panel, the quality of the produced wall panel can be guaranteed.

[0007] The present utility model is further arranged as follows: The fixed threaded rod includes a first threaded rod and a second threaded rod. The first threaded rod and the second threaded rod are detachably connected. The second threaded rod is fixedly connected to the thermal insulation board through the second threaded hole. The first threaded rod is fixedly connected to the wall panel forming mold through the first threaded hole.

[0008] By adopting the above technical solution, the first threaded rod is used to drive the second threaded rod to gradually turn into the interior of the thermal insulation board through the second threaded hole, so that the position of the second threaded rod and the position of the thermal insulation board are fixed. And during the process of pouring the cement, the position of the thermal insulation board will not move and is fixed, so that the cement can be fully poured into the wall panel forming mold. After the cement pouring is completed or the cement is formed, by rotating the first threaded rod and separating the first threaded rod from the second threaded rod. And if there is still a section of the second threaded rod outside the precast exterior wall, the staff can saw off the second threaded rod to realize the forming of the precast exterior wall panel. And after the cement and the thermal insulation board are in full contact, the situation of delamination or separation between the two can be avoided. At the same time, an anti-corrosion coating can be applied on the surface of the thermal insulation board to avoid the situation of corrosion, separation and delamination between the thermal insulation board and the cement, thereby ensuring the quality of the produced precast thermal insulation exterior wall panel.

[0009] The present utility model is further arranged as follows: One end of the first threaded rod close to the second threaded rod is provided with an extended threaded rod. One end of the second threaded rod close to the first threaded rod is provided with a third threaded hole for the extended threaded rod to turn into, and the spiral direction of the internal thread of the third threaded hole is opposite to that of the internal thread of the second threaded hole.

[0010] By adopting the above technical solution, the staff first fix the elongated threaded rod to the second threaded rod, so that the elongated threaded rod is inserted into the third threaded hole for fixation. Then, by rotating the first threaded rod, the second threaded rod is respectively rotated into the first threaded hole and the second threaded hole. During the rotation process, the elongated threaded rod will not be separated from the second threaded rod due to rotation. After the cement is poured or set, it is convenient to separate the elongated threaded rod from the second threaded rod by rotating the first threaded rod, which is convenient for the disassembly and installation of the first threaded rod, and the quality of the prefabricated thermal insulation exterior wall panel is guaranteed and improved after forming.

[0011] The present utility model is further arranged as follows: a blocking plate is arranged between the wall panel forming die and the thermal insulation board. The blocking plate is slidably connected in the wall panel forming die, and through holes for inserting the second threaded rod are formed in the blocking plate.

[0012] By adopting the above technical solution, the blocking plate is used to block the first threaded rod outside, which is convenient for the staff to separate the first threaded rod from the second threaded rod. At the same time, it is also convenient for the second threaded rod to pass through the blocking plate and be connected to the thermal insulation board.

[0013] The present utility model is further arranged as follows: a telescopic spring is abutted between the blocking plate and the wall panel forming die, and clamping grooves for the telescopic spring to be clamped into are formed on both the blocking plate and the wall panel forming die.

[0014] By adopting the above technical solution, the blocking plate can be fixed in the wall panel forming die in a detachable manner such as by screws. After the blocking plate is fixed, the telescopic springs can be respectively clamped into the clamping grooves between the blocking plate and the wall panel forming die, thereby abutting against the blocking plate to ensure the blocking effect of the blocking plate, and making the process of cement pouring more stable, preventing the situation of delamination and gaps between the thermal insulation board and the cement.

[0015] The present utility model is further arranged as follows: a connecting part is arranged between the elongated threaded rod and the first threaded rod. The connecting part includes connecting plates symmetrically and rotatably connected to the first threaded rod and folding plates arranged between the connecting plates and the elongated threaded rod, and a tensile spring is arranged between the two connecting plates.

[0016] By adopting the above technical solution, the extended threaded rod is fixed to the second threaded rod and the first threaded rod is gradually rotated into the first threaded hole, so that the folding plate arranged between the extended threaded rod and the first threaded rod is bent and rotated, and at the same time, the two connecting plates are rotated and approach each other, so that the tension spring is squeezed by external force and contracts. When the first threaded rod is completely rotated into the first threaded hole, the tension spring is no longer affected by external force and gradually pushes the connecting plate, then the connecting plate and the folding plate will slowly unfold and block the first threaded hole, and at the same time can further play a role of blocking and supporting the blocking plate, thereby increasing the force point of the first threaded rod.

[0017] The utility model is further configured as follows: the connecting plate is arranged in an inclined manner.

[0018] By adopting the above technical solution, when the extended threaded rod is connected to the second threaded rod and the first threaded rod is gradually turned into the wall panel forming mold, the connecting plate will be arranged in an umbrella shape between the wall panel forming mold and the blocking plate, so that the blocking plate and the insulation plate can be supported, and the cement will be more stable during the pouring process. When the first threaded rod needs to be removed, the first threaded rod is gradually rotated to make the connecting plate retract into the first threaded hole and squeeze the tension spring, which is convenient for fixing and disassembling the first threaded rod and can also play a certain supporting role.

[0019] In summary, the utility model has the following beneficial effects: before the prefabricated exterior wall panels are formed, the insulation board is first fixed in the wall panel forming mold to restrict the position of the insulation board, and then cement is poured into the wall panel forming mold for forming, so that the cement and the insulation board are in full contact and there is no large gap between the two, thereby ensuring that the prefabricated insulation exterior wall panels produced have high stability and strength, preventing the exterior wall panels from being delaminated, resulting in poor overall pre-cast integrity of the exterior wall panels and affecting the quality of the produced exterior wall panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the wall panel forming mold and the insulation board of the utility model.

[0021] In the figure: 1. wall panel forming mold; 2. insulation board; 3. blocking plate; 4. first threaded rod; 5. second threaded rod; 6. extension threaded rod; 7. tension spring; 8. connecting plate; 9. folding plate; 10. telescopic spring. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It 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 should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside 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.

[0025] The following will describe the present utility model in detail with reference to the drawings.

[0026] A precast sandwich insulation exterior wall panel, referring to Figure 1 , includes a wall panel forming mold 1 and a thermal insulation board 2. The wall panel forming mold 1 is arranged in a concave shape. The thermal insulation board 2 is clamped into the recessed part of the wall panel forming mold 1. A gap for pouring cement is provided between the thermal insulation board 2 and the wall panel forming mold 1. A plurality of first threaded holes are opened on the wall panel forming mold 1. A plurality of second threaded holes are provided at the positions corresponding to the plurality of first threaded holes on the thermal insulation board 2, and a fixing threaded rod is arranged between the plurality of first threaded holes and the second threaded holes;

[0027] The fixing threaded rod includes a first threaded rod 4 and a second threaded rod 5. The first threaded rod 4 and the second threaded rod 5 are detachably connected. The second threaded rod 5 is fixedly connected to the thermal insulation board 2 through the second threaded hole. The first threaded rod 4 is fixedly connected to the wall panel forming mold 1 through the first threaded hole.

[0028] An elongation threaded rod 6 is arranged at one end of the first threaded rod 4 close to the second threaded rod 5. A third threaded hole for the elongation threaded rod 6 to turn into is opened at one end of the second threaded rod 5 close to the first threaded rod 4, and the spiral direction of the internal thread of the third threaded hole is opposite to that of the internal thread of the second threaded hole.

[0029] A blocking plate 3 is arranged between the wall panel forming mold 1 and the thermal insulation board 2. The blocking plate 3 is slidably connected inside the wall panel forming mold 1. A through hole for the second threaded rod 5 to be inserted is opened on the blocking plate 3. A telescopic spring 10 is abutted between the blocking plate 3 and the wall panel forming mold 1. Card slots for the telescopic spring 10 to be clamped into are opened on both the blocking plate 3 and the wall panel forming mold 1;

[0030] A connecting part is arranged between the elongating threaded rod 6 and the first threaded rod 4. The connecting part includes connecting plates 8 symmetrically and rotatably connected to the first threaded rod 4 and folding plates 9 arranged between the connecting plates 8 and the elongating threaded rod 6. The folding plates 9 can be made of soft materials, which facilitates the folding plates 9 to pass through the first threaded holes as the connecting plates 8 rotate. A tension spring 7 is arranged between the two connecting plates 8, and the connecting plates 8 are inclined.

[0031] Working principle: Before pouring the precast thermal insulation exterior wall panel, the staff inserts the specified thermal insulation board 2 with an anti-corrosion coating on its surface into the wall panel forming mold 1 and restricts the position of the thermal insulation board 2. The staff aligns the fixed threaded rod with the position of the first threaded hole first, and then by rotating the fixed threaded rod, the position of the fixed threaded rod corresponds to the second threaded hole opened on the thermal insulation board 2. As the first threaded rod 4 rotates gradually, the first threaded rod 4 and the second threaded rod 5 can be gradually and respectively screwed into the first threaded hole and the second threaded hole. Then, the second threaded rod 5 can fix the position of the thermal insulation board 2 to prevent the thermal insulation board 2 from shaking or displacing in the wall panel forming mold 1. Then, after fixing the thermal insulation boards 2, cement is poured into the wall panel forming mold 1. And before the thermal insulation boards 2 are fixed, the gap or delamination state between the cement and the thermal insulation board 2 can be reduced. After the cement is poured or formed, the fixed threaded rod can be partially separated to form the precast thermal insulation exterior wall panel. And because there is no gap or delamination between the cement and the thermal insulation board 2 in the produced thermal insulation exterior wall panel, the quality of the produced wall panel can be guaranteed.

[0032] The first threaded rod 4 is used to drive the second threaded rod 5 to gradually pass through the second threaded hole and screw into the interior of the thermal insulation board 2, so that the position of the second threaded rod 5 and the position of the thermal insulation board 2 are fixed. During the process of pouring cement, the position of the thermal insulation board 2 will not move and is fixed, so that the cement can be fully poured into the wall panel forming mold 1. After the cement is poured or formed, by rotating the first threaded rod 4, the first threaded rod 4 and the second threaded rod 5 are separated. If there is still a section of the second threaded rod 5 outside the precast exterior wall, the staff can saw off the second threaded rod 5 to form the precast exterior wall panel. And after the cement and the thermal insulation board 2 are in full contact, the delamination or separation between the two can be avoided. At the same time, an anti-corrosion coating can be applied on the surface of the thermal insulation board 2 to avoid the corrosion and separation or delamination between the thermal insulation board 2 and the cement, thereby ensuring the quality of the produced precast thermal insulation exterior wall panel.

[0033] The staff first fixes the extended threaded rod 6 and the second threaded rod 5 together, so that the extended threaded rod 6 is inserted into the third threaded hole for fixation, and then drives the second threaded rod 5 to be respectively rotated into the first threaded hole and the second threaded hole by rotating the first threaded rod 4. During the rotation, the extended threaded rod 6 will not be separated from the second threaded rod 5 due to the rotation. After the cement pouring is completed or the cement is set, the extended threaded rod 6 and the second threaded rod 5 can be easily separated by rotating the first threaded rod 4, which is convenient for the disassembly and installation of the first threaded rod 4, and the quality of the prefabricated thermal insulation exterior wall panels is guaranteed and improved after they are formed.

[0034] The blocking plate 3 is used to block the first threaded rod 4 outside, making it convenient for the staff to separate the first threaded rod 4 from the second threaded rod 5, and also convenient for the second threaded rod 5 to pass through the blocking plate 3 and be connected with the insulation board 2. The blocking plate 3 can be fixed in the wall panel forming mold 1 in a detachable manner such as screws. When the blocking plate 3 is fixed, the telescopic spring 10 can be respectively inserted into the slot between the blocking plate 3 and the wall panel forming mold 1, thereby resisting the blocking plate 3 to ensure the blocking effect of the blocking plate 3, thereby making the cement pouring process more stable and preventing stratification and gaps between the insulation board 2 and the cement.

[0035] The extended threaded rod 6 is fixed to the second threaded rod 5 and the first threaded rod 4 is gradually turned into the first threaded hole, so that the folding plate 9 arranged between the extended threaded rod 6 and the first threaded rod 4 is bent and rotated, and at the same time, the two connecting plates 8 are rotated and approached to each other, so that the tension spring 7 is squeezed by external force and contracts. When the first threaded rod 4 is completely turned into the first threaded hole, the tension spring 7 is no longer affected by external force and gradually pushes the connecting plate 8, then the connecting plate 8 and the folding plate 9 will slowly unfold and block the first threaded hole, and at the same time can further play a role of blocking and supporting the blocking plate 3, thereby increasing the force point of the first threaded rod 4.

[0036] When the extended threaded rod 6 is connected to the second threaded rod 5, and the first threaded rod 4 is gradually turned into the wall panel forming mold 1, the connecting plate 8 will be arranged in an umbrella shape between the wall panel forming mold 1 and the blocking plate 3, so that the blocking plate 3 and the insulation plate 2 can be supported, and the cement will be more stable during the pouring process. When the first threaded rod 4 needs to be removed, the first threaded rod 4 is gradually rotated to make the connecting plate 8 retract into the first threaded hole and squeeze the tension spring 7, which is convenient for fixing and disassembling the first threaded rod 4 and can also play a certain supporting role.

[0037] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A prefabricated sandwich insulation exterior wall panel, comprising a wall panel forming mold (1) and a thermal insulation board (2), characterized in that: The wall panel forming die (1) is arranged in a concave shape, the heat preservation board (2) is clamped into the concave part of the wall panel forming die (1), a gap for pouring cement is arranged between the heat preservation board (2) and the wall panel forming die (1), a plurality of first threaded holes are formed in the wall panel forming die (1), a plurality of second threaded holes are arranged at positions corresponding to the plurality of first threaded holes on the heat preservation board (2), and a fixing threaded rod is arranged between the plurality of first threaded holes and the second threaded holes.

2. The precast sandwich insulation exterior wall panel according to claim 1, characterized in that: The fixing threaded rod comprises a first threaded rod (4) and a second threaded rod (5), the first threaded rod (4) is detachably connected with the second threaded rod (5), the second threaded rod (5) is fixedly connected to the heat preservation board (2) through the second threaded hole, and the first threaded rod (4) is fixedly connected to the wall panel forming die (1) through the first threaded hole.

3. The precast sandwich thermal insulation exterior wall panel according to claim 2, wherein: An extension threaded rod (6) is arranged at one end of the first threaded rod (4) close to the second threaded rod (5), a third threaded hole for the extension threaded rod (6) to turn into is formed at one end of the second threaded rod (5) close to the first threaded rod (4), and the spiral direction of the internal thread of the third threaded hole is opposite to that of the internal thread of the second threaded hole.

4. A precast sandwich insulation exterior wall panel according to claim 3, characterized in that: A baffle plate (3) is arranged between the wall panel forming die (1) and the heat preservation board (2), the baffle plate (3) is slidably connected in the wall panel forming die (1), and a through hole for the second threaded rod (5) to be inserted into is formed in the baffle plate (3).

5. The prefabricated sandwich heat-insulating exterior wall panel according to claim 4, characterized in that: A telescopic spring (10) is abutted between the baffle plate (3) and the wall panel forming die (1), and clamping grooves for the telescopic spring (10) to be clamped into are formed on both the baffle plate (3) and the wall panel forming die (1).

6. The precast sandwich thermal insulation exterior wall panel according to claim 3, wherein: A connecting part is arranged between the extension threaded rod (6) and the first threaded rod (4), the connecting part comprises connecting plates (8) symmetrically and rotatably connected to the first threaded rod (4) and folding plates (9) arranged between the connecting plates (8) and the extension threaded rod (6), and a tension spring (7) is arranged between the two connecting plates (8).

7. A precast sandwich insulation exterior wall panel according to claim 6, characterized in that: The connecting plate (8) is arranged obliquely.

Images