High-performance autoclaved aerated concrete insulation board and thermal-bridge-free reinforced connection construction process thereof

Abstract

The invention discloses a high-performance autoclaved aerated concrete insulation board which comprises a left board and a right board. According to the connecting device, the left plate, the right plate, the connecting rod and the connecting tightener are arranged, the left plate and the right plate are assembled into a right-angle plate and then are in a tight connection state, the two right-angle plates are installed on the inner side and the outer side of the corner of the floor wall body, so that a connecting gap can be eliminated, and the corner of the floor wall body is in a state of being surrounded by the two right-angle plates; the two right-angle plates can thoroughly eliminate a heat bridge at the corner of the floor wall. A heat-insulation board heat-bridge-free reinforced connection construction technology comprises the steps that firstly, a concrete middle column with a certain height is prefabricated, and a foundation wall located on the adjacent side of the concrete middle column is located, then two right-angle plates composed of a left plate and a right plate are attached to the inner side and the outer side of the concrete middle column, and then the two right-angle plates are connected in a fastened mode through a connection reinforcing plate; when concrete is poured between the two right-angle plates and then solidified, the connecting strength of the two right-angle plates and the wall can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of building wall insulation treatment, in particular to a high-performance autoclaved sand aerated concrete insulation board and a thermal bridge-free reinforced connection construction process thereof. Background Art

[0002] Thermal bridges between floors and walls are a common problem in existing concrete buildings, which affect the thermal insulation performance of the building. In order to eliminate thermal bridges, insulation boards are usually installed on the inside and outside of the wall. Common insulation boards are autoclaved sand aerated concrete insulation boards. During installation, the insulation boards are used as molds to cast the wall. After casting, the insulation boards on the inside and outside of the wall can eliminate thermal bridges.

[0003] However, due to the existence of corners in the existing floor walls and the presence of load-bearing columns at the corners, the existing insulation panels are usually straight panel structures, which leads to the problem of poor insulation connection and sealing effect at the corners of the floor walls. In other words, thermal bridges are easily formed at the corners of the floor walls, which in turn affects the insulation performance of the building.

[0004] For this reason, there is an urgent need on the market for an insulation board that can be easily installed on the inside and outside of floor walls and eliminate thermal bridges, and a construction process that can improve the strength of the insulation board's thermal bridge-free connection.

[0005] Therefore, the present invention proposes a high-performance autoclaved sand aerated concrete insulation board and a thermal bridge-free reinforced connection construction process thereof. Summary of the invention

[0006] The purpose of the present invention is to solve the problems mentioned in the background technology and to propose a high-performance autoclaved sand aerated concrete insulation board and a construction process for strengthening the connection without thermal bridges.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A high-performance autoclaved sand aerated concrete insulation board comprises a left board and a right board, wherein a limiting shaft is internally accommodated at one end of the right board, a connecting rod is fixedly connected to the outer peripheral wall of the limiting shaft, a connecting tightener is arranged in the left board, a channel for guiding the connecting rod is opened at one end of the left board, after the connecting rod is inserted into the connecting tightener through the channel, one end of the left board and one end of the right board are in a tightly abutting state, an arc-shaped inner concave surface adapted to one end of the right board is opened at one end of the left board, and T-shaped connecting grooves are opened at the front and rear of the left board and the right board.

[0009] As a further description of the above technical solution:

[0010] The coupling tightener includes a fixing ring, a trigger mechanism and an elastic telescopic push rod. The outer peripheral wall of the fixing ring is provided with an insertion hole used in conjunction with the coupling rod. One end of the elastic telescopic push rod is hingedly connected to a position in the fixing ring close to the insertion hole. The outer peripheral wall of the coupling rod is provided with an annular limiting groove close to the free end. When the annular limiting groove enters the fixing ring, under the action of the trigger mechanism, as the guide coupling rod continues to be inserted, the elastic telescopic push rod will first abut against the bottom of the annular limiting groove, and then the elastic telescopic push rod will swing inward to apply an inward pulling force to the coupling rod.

[0011] As a further description of the above technical solution:

[0012] The trigger mechanism includes a trigger arm, a safety shaft and an elastic telescopic strut, one end of the trigger arm is rotatably connected in the fixed ring and meshes with one end of the elastic telescopic push rod, the safety shaft is slidably connected to the inner circumferential wall of the fixed ring opposite to the insertion hole, the safety shaft and the insertion hole are coaxial and an annular yielding groove is provided on the outer circumferential wall, one side of the trigger arm is hingedly connected to a position close to the inner circumferential wall in the fixed ring through the elastic telescopic strut, and under the action of the elastic telescopic strut, the trigger arm swings toward the direction of the safety shaft.

[0013] As a further description of the above technical solution:

[0014] The trigger arm, the safety shaft, the elastic telescopic support rod and the elastic telescopic push rod are all in the same plane, and the plane is perpendicular to the axis of the fixing ring.

[0015] As a further description of the above technical solution:

[0016] A trigger arm, an elastic telescopic support rod and an elastic telescopic push rod are arranged on both sides of the safety shaft.

[0017] As a further description of the above technical solution:

[0018] A circular placement slot communicating with the channel is provided on one side of the left plate, and the circular placement slot is snap-fitted with the positioning ring.

[0019] As a further description of the above technical solution:

[0020] The other ends of the left plate and the right plate are respectively provided with connecting grooves, and the tops and bottoms of the left plate and the right plate are respectively provided with plugging plates and slots plugged and matched with the plugging plates.

[0021] A construction process for strengthening connection of thermal insulation boards without thermal bridges, comprising the following steps:

[0022] Step 1: Cast a prefabricated concrete center column of a certain height at the corner of the upper surface of the floor slab, and place the foundation wall on the adjacent side of the concrete center column, with the angle between the two foundation walls being a right angle.

[0023] Step 2: Combine the two groups of left and right plates into two right-angle plate structures, and then place the two right-angle plates on the inner and outer right-angle sides of the foundation wall respectively, and keep the two right-angle plates and the foundation wall in a fitted state. The space above the concrete center column and between the two right-angle plates is the concrete pouring space.

[0024] Step 3: Use the connection reinforcement plate to connect the T-shaped connection grooves on the two right-angle plates to ensure that the left plate and the right plate corresponding to the two right-angle plates are in a parallel state.

[0025] Step 4: Install the concrete insulation straight plates on both sides of the foundation wall between the adjacent concrete middle columns on the floor slab, and plug and connect the two ends of the concrete insulation straight plates to the left plate and the right plate respectively, and then use steel bars to connect and fix the concrete insulation straight plates on both sides of the foundation wall so that the concrete insulation straight plates on both sides of the foundation wall are close to the foundation wall.

[0026] Step 5: Pour concrete into the cavity surrounded by the right-angle plate and the concrete insulation straight plate, and vibrate the concrete at the same time

[0027] As a further description of the above technical solution:

[0028] In step three, connecting steel bars are embedded between two adjacent concrete center columns, and then the connecting reinforcement plates are connected to the connecting steel bars through iron wires.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0030] 1. In the present invention, by providing a left plate, a right plate, a connecting rod and a connecting tightener, the left plate is assembled into a right-angle plate through the right plate and is in a tightly connected state. The two right-angle plates are installed on the inner and outer sides of the corners of the floor wall to eliminate the connection gap, so that the corner of the floor wall is surrounded by the two right-angle plates. After the wall is poured, the two right-angle plates can completely eliminate the thermal bridge at the corner of the floor wall.

[0031] 2. In the present invention, the connecting tightener includes a fixing ring, a trigger mechanism, a trigger mechanism, a trigger arm, a safety shaft, an elastic telescopic support rod and an elastic telescopic push rod cooperating with the annular limit groove on the connecting rod, so that after the connecting rod is inserted into the fixing ring, the connecting tightener will trigger and tighten the connecting rod, so that the connection between the left plate and the right plate is in a pressed state. This arrangement greatly improves the convenience of tight assembly of the left plate and the right plate.

[0032] 3. In the present invention, a concrete center column of a certain height is first prefabricated and located at the foundation wall on the adjacent side of the concrete center column. Then, two right-angle plates consisting of a left plate and a right plate are attached to the inner and outer sides of the concrete center column. The two right-angle plates are fastened together by a connecting reinforcement plate. When concrete is poured between the two right-angle plates and then solidified, the strength of the connection between the two right-angle plates and the wall can be greatly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of the high-performance autoclaved sand aerated concrete insulation board proposed by the present invention;

[0034] Figure 2 This is a schematic structural diagram of the bottom of the high-performance autoclaved sand aerated concrete insulation board proposed by the present invention;

[0035] Figure 3 This is a structural schematic diagram of the left plate of the high-performance autoclaved sand aerated concrete insulation board proposed by the present invention;

[0036] Figure 4 It is a schematic structural diagram of the cooperation between the right plate, the connecting rod and the connecting tightener of the high-performance autoclaved sand aerated concrete insulation board proposed by the present invention;

[0037] Figure 5 It is a structural schematic diagram of the connection between the limit shaft, the connecting rod and the connecting tightener of the high-performance autoclaved sand aerated concrete insulation board proposed by the present invention;

[0038] Figure 6 It is a structural schematic diagram of the detailed connection of the connecting rod and the connecting tightener of the high-performance autoclaved sand aerated concrete insulation board proposed by the present invention;

[0039] Figure 7 It is a schematic diagram of the state of two right-angle plates during construction in a construction process for strengthening connection of insulation boards without thermal bridges proposed by the present invention.

[0040] Legend:

[0041] 1. Left plate; 11. Arc-shaped inner concave surface; 12. Circular placement slot; 2. Right plate; 3. Limiting shaft; 4. Connecting rod; 41. Annular limiting groove; 5. Connecting tightener; 51. Fixing ring; 511. Insertion hole; 52. Trigger mechanism; 521. Trigger arm; 522. Safety shaft; 5221. Annular giving way groove; 523. Elastic telescopic support rod; 53. Elastic telescopic push rod; 6. Channel; 7. T-shaped connecting groove; 8. Connecting groove; 9. Insert plate; 101. Slot. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1

[0044] See also Figure 1-6 When the left and right panels 1 and 2 are connected, a locking plate 3 is formed, and the locking plate 3 is fixed to the left and right panels 1. When the left and right panels 1 and 2 are connected, a locking plate 3 is formed, and the locking plate 3 is fixed to the left and right panels 1.

[0045] Furthermore, after the connecting rod 4 is inserted into the connecting tightener 5 through the channel 6, one end of the left plate 1 and one end of the right plate 2 are in a tightly abutted state, that is, the connecting tightener 5 has a tightening function, thereby eliminating the gap between the left plate 1 and the right plate 2, completely eliminating the thermal bridge, and improving the thermal insulation effect.

[0046] Among them, one end of the left plate 1 is provided with an arc-shaped inner concave surface 11 that is adapted to one end of the right plate 2, that is, one end of the right plate 2 is an arc-shaped convex surface. The arc-shaped inner concave surface 11 and the arc-shaped convex surface can increase the sealing contact area after being pressed against each other. The front and back of the left plate 1 and the right plate 2 are both provided with T-shaped connecting grooves 7, and the T-shaped connecting grooves 7 are the connecting parts of the external workpieces.

[0047] Specifically, the connecting tightener 5 includes a fixing ring 51, a trigger mechanism 52 and an elastic telescopic push rod 53. The outer peripheral wall of the fixing ring 51 is provided with an insertion hole 511 used in conjunction with the connecting rod 4. The insertion hole 511 is circular, and one end of the connecting rod 4 can enter the fixing ring 51 through the insertion hole 511. One end of the elastic telescopic push rod 53 is hingedly connected to a position near the insertion hole 511 in the fixing ring 51. The elastic telescopic push rod 53 is a telescopic rod structure with two sections and a built-in support spring. The outer peripheral wall of the connecting rod 4 is provided with a ring near the free end. shaped limit groove 41. When the annular limit groove 41 enters the fixed ring 51, under the action of the trigger mechanism 52, as the guide connecting rod 4 continues to be inserted, the elastic telescopic push rod 53 will first abut against the bottom of the annular limit groove 41, and then the elastic telescopic push rod 53 will swing inward to apply an inward pulling force to the connecting rod 4. That is to say, the function of the trigger mechanism 52 is that as the connecting rod 4 goes deeper, the elastic telescopic push rod 53 first pushes into the annular limit groove 41, and then swings inward to pull the connecting rod 4, so that the left plate 1 and the right plate 2 are in a tightly connected state.

[0048] The preferred structure of the trigger mechanism 52 mentioned above is that it includes a trigger arm 521, a safety shaft 522 and an elastic telescopic support rod 523, one end of the trigger arm 521 is rotatably connected in the fixed ring and meshed with one end of the elastic telescopic push rod 53, that is, one end of the trigger arm 521 is provided with meshing teeth, and one end of the elastic telescopic push rod 53 also has meshing teeth. When the trigger arm 521 swings, it will drive the elastic telescopic push rod 53 to swing, and the swing directions of the two are opposite. The safety shaft 522 is slidably connected to the inner circumferential wall of the fixed ring 51 opposite to the insertion hole 511. In specific implementation, a guide sleeve arranged on the outside of the safety shaft 522 can be welded to the inner circumferential wall of the fixed ring 51, and the safety shaft 522 and the insertion hole 511 can be welded. 11 and an annular clearance groove 5221 is provided on its outer peripheral wall. One side of the trigger arm 521 is hingedly connected to a position near the inner peripheral wall of the fixing ring 51 through an elastic telescopic support rod 523. The elastic telescopic support rod 523 also adopts a telescopic rod structure with two sections of internal springs. Under the action of the elastic telescopic support rod 523, the trigger arm 521 swings toward the direction of the safety shaft 522. The trigger mechanism 52 is in a triggered state when the action end of the elastic telescopic support rod 523 presses against one side of the annular clearance groove 5221 on the safety shaft 522, and the action end of the elastic telescopic push rod 53 presses against the other side of the annular clearance groove 5221 on the safety shaft 522, wherein the action end of the elastic telescopic push rod 53 is close to the free end of the safety shaft 522. Preferably, the trigger arm 521, the safety shaft 522, the elastic telescopic support rod 523 and the elastic telescopic push rod 53 are all in the same plane, and the plane is perpendicular to the axis of the fixing ring 51.

[0049] Furthermore, trigger arms 521 , elastic telescopic struts 523 and elastic telescopic push rods 53 are provided on both sides of the safety shaft 522 , that is, one connecting rod 4 is pulled by two symmetrical elastic telescopic struts 523 , thereby increasing the tightening force of the connecting tightener 5 on the connecting rod 4 .

[0050] In this embodiment, a circular placement slot 12 connected to the channel 6 is opened on one side of the left plate 1. The circular placement slot 12 and the positioning ring 51 are snap-fitted together. This arrangement facilitates the removal of the entire connection tightener 5 from the circular placement slot 12, reducing the difficulty of manufacturing the left plate 1.

[0051] In this embodiment, a connecting groove 8 is provided at the other end of the left plate 1 and the right plate 2, and a plug plate 9 and a slot 101 which is plugged into the plug plate 9 are provided at the top and the bottom of the left plate 1 and the right plate 2, respectively. That is to say, the insulation board is a unit board structure, and the insulation coverage area can be increased by stacking and combining. The function of the connecting groove 8 is to facilitate the connection with other insulation straight boards so that the entire floor wall is in a fully insulated state.

[0052] See also Figure 7 , a construction process for strengthening connection of insulation boards without thermal bridges, comprising the following steps:

[0053] Step 1: Cast a prefabricated concrete center column of a certain height at the corner of the upper surface of the floor slab, and place the foundation wall on the adjacent side of the concrete center column, wherein a steel cage is embedded in the concrete center column, the height of the foundation wall is controlled at 15-20cm, and the angle between the two foundation walls is a right angle.

[0054] Step 2: Combine two groups of left plates 1 and right plates 2 into two right-angle plate structures, and then place the two right-angle plates on the inner right-angle side and the outer right-angle side of the foundation wall respectively, and keep the two right-angle plates and the foundation wall in a fitted state. The space above the concrete center column and between the two right-angle plates is the concrete pouring space.

[0055] Step three, use the connecting reinforcement plate to connect the T-shaped connecting grooves 7 on the two right-angle plates to ensure that the corresponding left plate 1 and right plate 2 on the two right-angle plates are in a parallel state, so as to ensure that the spacing between the inner and outer right-angle plates is stable. Among them, the connecting steel bars are embedded in the middle of the two adjacent concrete columns, and then the connecting reinforcement plate is connected to the connecting steel bars by iron wire. At this time, the concrete column is in a closed and surrounded state by the two right-angle plates.

[0056] Step 4. Install the concrete insulation straight plates on both sides of the foundation wall between the adjacent concrete middle columns on the floor slab, and plug and connect the two ends of the concrete insulation straight plates to the left plate 1 and the right plate 2 respectively, and then use steel bars to connect and fix the concrete insulation straight plates on both sides of the foundation wall. This concrete insulation straight plate adopts the common insulation plate with connecting grooves on the side walls, so that the concrete insulation straight plates on both sides of the foundation wall are close to the foundation wall.

[0057] Step 5: Pour concrete into the cavity enclosed by the right-angle plate and the concrete insulation straight plate, and vibrate the concrete at the same time. After the concrete solidifies, the thermal bridges around the concrete center column and inside and outside the floor wall are completely eliminated, and the connection strength between the insulation board and the concrete wall is also improved.

[0058] Working principle: when in use, assemble the left plate 1 and the right plate 2, insert one end of the connecting rod 4 into the channel 6 on the left plate 1, one end of the connecting rod 4 enters the fixing ring 51 and contacts one end of the safety shaft 522. After pushing the safety shaft 522, the action end of the elastic telescopic push rod 53 moves to the outer wall of the connecting rod 4. When the action end of the elastic telescopic push rod 53 moves to the annular limit groove 41, its action end will extend out and press against the bottom of the annular limit groove 41. When the connecting rod 4 continues to go deeper, the trigger arm 521 will contact the annular yield groove 5221. At this time, under the push of the elastic telescopic support rod 523, the trigger arm 521 swings into the annular yield groove 5221. At the same time, the elastic telescopic push rod 53 will swing toward the direction of the trigger arm 521 in the meshing transmission, thereby pushing the connecting rod 4 to continue moving into the fixing ring 51. At this time, the left plate 1 and the right plate 2 are in a tightly connected state.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. High performance autoclaved sand aerated concrete insulation board, characterized by: The invention comprises a left plate (1) and a right plate (2), wherein a limit shaft (3) is internally accommodated at one end of the right plate (2), and a connecting rod (4) is fixedly connected to the outer peripheral wall of the limit shaft (3), and a connecting tightener (5) is arranged in the left plate (1), and a channel (6) for guiding the connecting rod (4) is opened at one end of the left plate (1), and after the connecting rod (4) is inserted into the connecting tightener (5) through the channel (6), one end of the left plate (1) and one end of the right plate (2) are in a tightly abutting state, and one end of the left plate (1) is opened with an arc-shaped inner concave surface (11) adapted to one end of the right plate (2), and the front and rear of the left plate (1) and the right plate (2) are both opened with T-shaped connecting grooves (7).

2. The high performance autoclaved sand aerated concrete insulation board according to claim 1, characterized in that: The connection tightener (5) comprises a fixing ring (51), a trigger mechanism (52) and an elastic telescopic push rod (53); an insertion hole (511) for use with the connection rod (4) is provided on the outer peripheral wall of the fixing ring (51); one end of the elastic telescopic push rod (53) is hingedly connected to a position in the fixing ring (51) near the insertion hole (511); an annular limiting groove (41) near the free end is provided on the outer peripheral wall of the connection rod (4); when the annular limiting groove (41) enters the fixing ring (51), under the action of the trigger mechanism (52), as the guide connection rod (4) continues to be inserted, the elastic telescopic push rod (53) moves to first abut against the bottom of the annular limiting groove (41), and then the elastic telescopic push rod (53) swings inward to apply an inward pulling force to the connection rod (4).

3. The high performance autoclaved sand aerated concrete insulation board according to claim 2, characterized in that: The trigger mechanism (52) comprises a trigger arm (521), a safety shaft (522) and an elastic telescopic support rod (523); one end of the trigger arm (521) is rotatably connected in the fixing ring and meshes with one end of the elastic telescopic push rod (53); the safety shaft (522) is slidably connected to the inner peripheral wall of the fixing ring (51) opposite to the insertion hole (511); the safety shaft (522) and the insertion hole (511) are coaxial and an annular clearance groove (5221) is provided on the outer peripheral wall; one side of the trigger arm (521) is hingedly connected to a position close to the inner peripheral wall of the fixing ring (51) through the elastic telescopic support rod (523); under the action of the elastic telescopic support rod (523), the trigger arm (521) swings in the direction of the safety shaft (522).

4. The high performance autoclaved sand aerated concrete insulation board according to claim 3, characterized in that: The trigger arm (521), the safety shaft (522), the elastic telescopic support rod (523) and the elastic telescopic push rod (53) are all in the same plane, and the plane is perpendicular to the axis of the fixing ring (51).

5. The high performance autoclaved sand aerated concrete insulation board according to claim 4, characterized in that: A trigger arm (521), an elastic telescopic support rod (523) and an elastic telescopic push rod (53) are arranged on both sides of the safety shaft (522).

6. The high performance autoclaved sand aerated concrete insulation board according to claim 2, characterized in that: A circular placement slot (12) communicating with the channel (6) is provided on one side of the left plate (1), and the circular placement slot (12) is snap-fitted with the positioning ring (51).

7. The high performance autoclaved sand aerated concrete insulation board according to claim 1, characterized in that: The other ends of the left plate (1) and the right plate (2) are respectively provided with a connecting groove (8), and the top and bottom of the left plate (1) and the right plate (2) are respectively provided with an inserting plate (9) and a slot (101) plugged with the inserting plate (9).

8. A construction process for strengthening connection of thermal insulation board without thermal bridge, the thermal insulation board is the thermal insulation board according to claim 1, characterized in that: The following steps are involved: Step 1: Cast a prefabricated concrete center column of a certain height at the corner of the upper surface of the floor slab and a foundation wall located on the adjacent side of the concrete center column, and the angle between the two foundation walls is a right angle; Step 2: The two groups of left plates (1) and right plates (2) are combined into two right-angle plate structures, and then the two right-angle plates are placed on the inner right-angle side and the outer right-angle side of the foundation wall respectively, and the two right-angle plates and the foundation wall are kept in a fitted state, and the space above the concrete center column and between the two right-angle plates is the concrete pouring space; Step 3: Use a connecting reinforcing plate to connect the T-shaped connecting grooves (7) on the two right-angle plates to ensure that the left plate (1) and the right plate (2) corresponding to the two right-angle plates are in a parallel state; Step 4: Install the concrete insulation straight plates on both sides of the foundation wall between the adjacent concrete middle columns on the floor slab, and respectively plug and connect the two ends of the concrete insulation straight plates to the left plate (1) and the right plate (2), and then use steel bars to connect and fix the concrete insulation straight plates on both sides of the foundation wall, so that the concrete insulation straight plates on both sides of the foundation wall are close to the foundation wall; Step 5: Pour concrete into the cavity enclosed by the right-angle plate and the concrete insulation straight plate, and vibrate the concrete at the same time.

9. The construction process for strengthening connection of thermal insulation boards without thermal bridges according to claim 8, characterized in that: In step three, connecting steel bars are embedded between two adjacent concrete center columns, and then the connecting reinforcement plates are connected to the connecting steel bars through iron wires.

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