Anti-cracking autoclaved aerated precast concrete block wall

Abstract

The utility model discloses an anti-cracking autoclaved aerated precast concrete block wall which comprises a top seat fixedly arranged on a roof, a base fixedly installed on a floor and a plurality of wall bodies clamped between the top seat and the base, the plurality of wall bodies are arranged in a straight line side by side, and two symmetrical side faces of each wall body are arranged in a staggered mode. Wherein one side face is provided with an extension part, the other side face is provided with an inner concave part, every two adjacent wall bodies are spliced through matching of the extension parts and the inner concave parts, and the space between the extension parts and the inner concave parts is filled with an asphalt bonding layer. According to the utility model, the overall connection is more stable, the two adjacent wall bodies are bonded together through the asphalt bonding layer, a certain buffering effect is achieved in the expansion and contraction process, and the extrusion force between the box body and the wall bodies is effectively reduced, so that the condition of cracking caused by extrusion due to dry shrinkage and expansion is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete block wall construction, in particular to an anti-cracking autoclaved aerated prefabricated concrete block wall. Background Art

[0002] With the development of society, the construction industry is becoming more and more developed. The actual cracking investigation results of the project conducted an in-depth analysis of the causes of cracking of autoclaved aerated concrete blocks from the aspects of the performance of the autoclaved aerated concrete blocks themselves, the external environment, design, construction, and supporting auxiliary materials. It was found that the cracking of autoclaved aerated concrete blocks is caused by multiple factors, but the main reason is the shrinkage of the autoclaved aerated concrete blocks themselves, coupled with changes in the external environment, and the non-standard selection of auxiliary materials in the later stage, which aggravates the deformation, and ultimately causes the deformation of the autoclaved aerated concrete blocks to exceed the limit of the deformation of the bonding mortar itself, which makes it easy to crack.

[0003] After searching, the patent with application number CN202010082806.5 discloses an autoclaved aerated concrete slab installation node, including a first tie bolt passing through a first autoclaved aerated concrete slab, a first expansion bolt located in a first building structure column or shear wall, a first gasket, a first lengthened nut, a second tie bolt passing through a second autoclaved aerated concrete slab, a second gasket, a second lengthened nut, a third tie bolt passing through a third autoclaved aerated concrete slab, a third gasket, a third lengthened nut... and an Nth tie bolt passing through an Nth autoclaved aerated concrete slab, an Nth gasket, and a common nut. The present invention can prevent the common quality problem of cracking of autoclaved aerated concrete walls in traditional structures, solves the hidden danger of wall cracking when autoclaved aerated concrete slabs are bonded to structural columns and shear walls through special adhesives or elastically connected by PU foaming agents, and can effectively prevent wall cracks and water seepage in external walls.

[0004] The connection between autoclaved aerated concrete blocks and building structure columns or shear walls mainly relies on special adhesives or PU foaming agents. However, during the construction process, problems such as low tensile strength of the bonding parts after bonding, loose bonding, and cracks in the wall may occur. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides an anti-cracking autoclaved aerated precast concrete block wall.

[0006] The technical solution of the utility model is as follows:

[0007] A crack-proof autoclaved aerated precast concrete block wall comprises a top seat fixedly mounted on a roof, a base fixedly mounted on a floor and a plurality of wall bodies clamped between the top seat and the base. The plurality of wall bodies are arranged in parallel in a line, and a single wall body has two symmetrical side surfaces, one of which is provided with an extension portion and the other is provided with an inner recess. Two adjacent walls are spliced ​​by matching the extension portion with the inner recess, and an asphalt bonding layer is filled between the extension portion and the inner recess.

[0008] Preferably, the wall comprises a crushed stone layer, and the outer surface of the crushed stone layer is covered with an isolation layer, a leveling layer and a waterproof layer in sequence from the inside to the outside.

[0009] Preferably, the isolation layer is made of non-woven fabric or glass fiber mesh.

[0010] Preferably, an expansion tube is fixedly provided on the extension portion, and a bursting groove is provided on the expansion tube; a fixing tube is embedded in the inner recess, and an expansion terminal is movably connected in the fixing tube, and the expansion terminal is adapted to the expansion tube.

[0011] Preferably, the expansion terminal is a truncated cone structure, and the inner diameter of the opening end of the fixing tube is smaller than the inner diameter of the tail end.

[0012] Preferably, the outer wall of the expansion terminal is provided with grooves in a circumferential array, and the inner wall of the expansion tube is provided with protrusions matching the grooves in a one-to-one correspondence.

[0013] Preferably, the base is provided with a first wire tube, a second wire tube connected to the first wire tube is provided in the wall, and a socket box is installed on the outer surface of the wall.

[0014] Preferably, a plurality of bosses are evenly arranged on the top surface of the wall, and the bottom surface of the top seat is provided with grooves matching the bosses in a one-to-one correspondence; a locking bolt is arranged on the boss, and a locking nut threadedly connected to the locking bolt is embedded in the groove.

[0015] The utility model has the following beneficial effects:

[0016] 1. The overall connection of the utility model is more stable. The two adjacent walls are bonded together by the asphalt bonding layer, which plays a certain buffering role in the process of thermal expansion and contraction, effectively reducing the extrusion force between the box and the wall, thereby effectively preventing cracking caused by extrusion due to shrinkage and expansion.

[0017] 2. The utility model also arranges a waterproof layer outside the leveling layer, which can effectively reduce the entry of moisture into the wall, effectively reduce the expansion of the wall due to water absorption, thereby increasing the stability of the overall structure of the wall and reducing the risk of cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of the wall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the wall cross section of the utility model;

[0021] Figure 4 It is an exploded schematic diagram of the overall structure of the utility model;

[0022] Figure 5 It is a three-dimensional connection diagram of the expansion pipe and the fixed pipe of the utility model;

[0023] Figure 6 This is a cross-sectional view of the connection between the expansion pipe and the fixed pipe of the utility model.

[0024] The reference numerals in the figure are as follows:

[0025] 1. Top seat; 2. Base; 3. Wall; 31. Gravel layer; 32. Isolation layer; 33. Leveling layer; 34. Waterproof layer; 4. Extension; 41. Expansion tube; 42. Burst groove; 5. Inner recess; 51. Fixing tube; 52. Expansion terminal; 6. Asphalt bonding layer; 7. First wire tube; 8. Second wire tube; 9. Socket box; 10. Boss; 11. Slot; 12. Locking bolt; 13. Locking nut. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 6 A crack-proof autoclaved aerated precast concrete block wall comprises a top seat 1 fixedly mounted on a roof, a base 2 fixedly mounted on a floor and a plurality of wall bodies 3 clamped between the top seat 1 and the base 2. The plurality of wall bodies 3 are arranged in parallel in a line, and a single wall body 30 has two symmetrical sides, one of which is provided with an extension part 4, and the other is provided with an inner recess 5. Two adjacent wall bodies 3 are spliced ​​by matching the extension part 4 with the inner recess 5, and an asphalt bonding layer 6 is filled between the extension part 4 and the inner recess 5.

[0028] Furthermore, the wall 3 includes a gravel layer 31, the outer surface of the gravel layer 31 is covered with an isolation layer 32, a leveling layer 33 and a waterproof layer 34 in sequence from the inside to the outside, and the isolation layer 32 is made of non-woven fabric or glass fiber mesh, which can increase the bonding force between the leveling layer 33 and the gravel layer 31; the provision of the waterproof layer 34 can effectively reduce the entry of moisture into the wall, effectively reduce the expansion of the wall 3 due to water absorption, increase the stability of the overall structure of the wall 3, and thus reduce the cracking of the wall 3.

[0029] Furthermore, an expansion tube 41 is fixedly provided on the extension portion 4, and a bursting groove 42 is provided on the expansion tube 41; a fixing tube 51 is embedded in the inner concave portion 5, and an expansion terminal 52 is movably connected in the fixing tube 51, and the expansion terminal 52 is adapted to the expansion tube 41; the expansion terminal 52 is a truncated cone structure, and the inner diameter of the opening end of the fixing tube 51 is smaller than the inner diameter of the tail end;

[0030] During the process of connecting adjacent walls 3, after the expansion tube 41 is inserted into the fixing tube 51, the expansion terminal 52 causes the expansion tube 41 to expand, thereby locking it in the fixing tube 51. At the same time, the bursting groove 42 is provided on the expansion tube 41 to leave space for the expansion terminal 52 to be inserted and expanded, thereby connecting the adjacent walls 3 together.

[0031] Furthermore, grooves are arranged in a circumferential array on the outer wall of the expansion terminal 52, and protrusions matching the grooves are arranged one by one on the inner wall of the expansion tube 41;

[0032] By making a movable connection between the expansion terminal 52 and the fixing tube 51, it is achieved that the adjacent walls 3 are not rigidly fixedly connected, so that a certain space for expansion or contraction is left between the adjacent walls 3, which can reduce cracking; at the same time, the expansion terminal 52 can be prevented from separating from the expansion tube 41 through the snap-fitting cooperation between the groove and the protrusion, thereby enhancing the stability of the connection.

[0033] Furthermore, the base 2 is provided with a first wire tube 7, a second wire tube 8 connected to the first wire tube 7 is provided in the wall 3, and a socket box 9 is installed on the outer surface of the wall 3;

[0034] Through the cooperation between the first wire tube 7, the second wire tube 8 and the socket box 9, the act of grooving on the wall 3 can be reduced, thereby ensuring the structural integrity and stability of the wall 3 and reducing the risk of cracking.

[0035] Furthermore, a plurality of bosses 10 are evenly arranged on the top surface of the wall 3, and grooves 11 matching the bosses 10 are arranged on the bottom surface of the top seat 1 one by one; locking bolts 12 are arranged on the bosses 10, and locking nuts 13 threadedly connected to the locking bolts 12 are embedded in the grooves 11;

[0036] Through the cooperation of the locking bolt 12 and the locking nut 13 , the wall 3 is more firmly connected to the top seat 1 .

[0037] The working principle of this utility model:

[0038] In the utility model, first, the top seat 1 is fixed on the roof, and then the base 2 is fixed on the floor, and a number of walls 3 are clamped between the top seat 1 and the base 2; a number of bosses 10 are evenly arranged on the top surface of the wall 3, and the bottom surface of the top seat 1 is provided with grooves 11 that are compatible with the bosses 10 in a one-to-one correspondence; a locking bolt 12 is provided on the boss 10, and a locking nut 13 threadedly connected to the locking bolt 12 is embedded in the groove 11; through the cooperation of the locking bolt 12 and the locking nut 13, the wall 3 is more firmly connected to the top seat 1.

[0039] A plurality of walls 3 are arranged in parallel in a line, and a single wall 30 has two symmetrical sides, one of which is provided with an extension part 4, and the other is provided with an inner recess 5. Two adjacent walls 3 are spliced ​​by matching the extension part 4 with the inner recess 5, and an asphalt bonding layer 6 is filled between the extension part 4 and the inner recess 5. The cooperation between the extension part 4 and the inner recess 5 can increase the bonding area between the walls 3, making the connection more stable, and the two walls 3 are bonded together by the asphalt bonding layer 6, which has a certain buffering effect during the process of thermal expansion and contraction, effectively reducing the extrusion force between the walls 3 and the walls 3, thereby effectively preventing cracks caused by extrusion caused by shrinkage and expansion; the asphalt bonding layer 6 is filled between the extension part 4 and the inner recess 5 by extrusion after the walls 3 are connected.

[0040] An expansion tube 41 is fixedly provided on the extension portion 4, and a bursting groove 42 is provided on the expansion tube 41; a fixed tube 51 is embedded in the inner recess 5, and an expansion terminal 52 is movably connected in the fixed tube 51, and the expansion terminal 52 is adapted to the expansion tube 41; the expansion terminal 52 is a truncated cone structure, and the inner diameter of the open end of the fixed tube 51 is smaller than the inner diameter of the tail end; in the process of connecting adjacent walls 3, after the expansion tube 41 is inserted into the fixed tube 51, the expansion terminal 52 causes the expansion tube 41 to expand, thereby locking it in the fixed tube 51, and at the same time, the bursting groove 42 is provided on the expansion tube 41 to leave space for the expansion terminal 52 to be inserted and expanded, thereby connecting the adjacent walls 3 together. The outer wall of the expansion terminal 52 is provided with grooves in a circumferential array, and the inner wall of the expansion tube 41 is provided with protrusions that match the grooves one by one; the expansion terminal 52 is movably connected to the fixing tube 51, so that no rigid fixed connection is adopted between the adjacent walls 3, so that a certain expansion or contraction space is left between the adjacent walls 3, which can reduce cracking; at the same time, the expansion terminal 52 can be prevented from separating from the expansion tube 41 through the snap-fitting cooperation between the groove and the protrusion, thereby enhancing the stability of the connection.

[0041] At the same time, the base 2 is provided with a first wire tube 7, the wall 3 is provided with a second wire tube 8 connected to the first wire tube 7, and a socket box 9 is installed on the outer surface of the wall 3. Through the cooperation of the first wire tube 7, the second wire tube 8 and the socket box 9, the behavior of grooving on the wall 3 can be reduced, thereby ensuring the structural integrity and stability of the wall 3, and then reducing the risk of cracking.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A crack-proof autoclaved aerated precast concrete block wall, comprising a top seat (1) fixedly mounted on a roof, a base (2) fixedly mounted on a floor, and a plurality of wall bodies (3) clamped between the top seat (1) and the base (2), characterized in that: A plurality of the walls (3) are arranged in parallel in a straight line, and a single wall (3) has two symmetrical side surfaces, one of which is provided with an extension portion (4) and the other is provided with an inner recess (5). Two adjacent walls (3) are spliced ​​by matching the extension portion (4) with the inner recess (5), and an asphalt bonding layer (6) is filled between the extension portion (4) and the inner recess (5).

2. The anti-cracking autoclaved aerated precast concrete block wall according to claim 1, characterized in that: The wall (3) comprises a crushed stone layer (31), and the outer surface of the crushed stone layer (31) is covered with an isolation layer (32), a leveling layer (33) and a waterproof layer (34) in sequence from the inside to the outside.

3. The anti-cracking autoclaved aerated precast concrete block wall according to claim 2, characterized in that: The isolation layer (32) is made of non-woven fabric or glass fiber mesh.

4. The anti-cracking autoclaved aerated precast concrete block wall according to claim 1, characterized in that: An expansion tube (41) is fixedly provided on the extension portion (4), and a bursting groove (42) is provided on the expansion tube (41); a fixing tube (51) is embedded in the inner recess (5), and an expansion terminal (52) is movably connected in the fixing tube (51), and the expansion terminal (52) is adapted to the expansion tube (41).

5. The anti-cracking autoclaved aerated precast concrete block wall according to claim 4, characterized in that: The expansion terminal (52) is a truncated cone structure, and the inner diameter of the opening end of the fixing tube (51) is smaller than the inner diameter of the tail end.

6. The anti-cracking autoclaved aerated precast concrete block wall according to claim 4, characterized in that: The outer wall of the expansion terminal (52) is provided with grooves in a circumferential array, and the inner wall of the expansion tube (41) is provided with protrusions that match the grooves in a one-to-one correspondence.

7. The anti-cracking autoclaved aerated precast concrete block wall according to claim 1, characterized in that: The base (2) is provided with a first electric wire tube (7), a second electric wire tube (8) connected to the first electric wire tube (7) is provided in the wall (3), and a socket box (9) is installed on the outer surface of the wall (3).

8. The anti-cracking autoclaved aerated precast concrete block wall according to claim 1, characterized in that: The top surface of the wall (3) is evenly provided with a plurality of bosses (10), and the bottom surface of the top seat (1) is provided with slots (11) that are matched with the bosses (10) in a one-to-one correspondence; the bosses (10) are provided with locking bolts (12), and the slots (11) are embedded with locking nuts (13) that are threadedly connected to the locking bolts (12).

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