Masonry wall pre-embedded air conditioner sleeve prefabricated block

Abstract

This utility model discloses a prefabricated block for embedding air conditioning sleeves in masonry walls. Key technical features include a concrete block, a pre-reserved pipe, a connecting hole, and a multi-layered sealing structure. The concrete block has a through-hole that extends obliquely from the inner end to the outer end, ensuring natural drainage of condensate and preventing backflow. The pre-reserved pipe passes through the connecting hole and is fixed inside. The gap between the connecting hole and the pre-reserved pipe is sealed by the sealing structure. By prefabricating the block, the problems of inaccurate positioning, difficulty in controlling the slope, and insufficient sealing performance of manually reserved holes in existing technologies are solved.

Description

Technical Field

[0001] This utility model relates to the field of building component technology, specifically to a prefabricated block for embedding air conditioning sleeves in masonry walls. Background Technology

[0002] In modern residential buildings and construction, masonry walls are widely used in wall structure construction. Masonry walls are typically constructed by combining bricks (such as sintered bricks and concrete blocks) with mortar and cement, possessing good load-bearing capacity, sound insulation, and thermal insulation capabilities, making them a preferred wall structure form in many buildings. During the construction of masonry walls, air conditioning pipes need to be pre-installed or installed in the wall to meet the drainage requirements of air conditioning condensate. Currently, there are two main methods for installing air conditioning pipes: one is to pre-reserve suitable holes at the locations where pipes need to be inserted according to the design drawings during masonry wall construction, or to directly bury the pipe sleeves in those locations; the other is to drill holes in the completed wall using tools such as water drills after the wall construction is finished to install the air conditioning pipes.

[0003] Although the above methods are widely used in construction practice, they have some technical drawbacks that can reduce construction quality and increase later maintenance costs. For example, the pre-drilled hole or pre-embedded sleeve method is usually done manually. Due to worker skill issues, on-site positioning accuracy and construction process limitations can occur, easily leading to hole position deviations, size mismatches, and weak bonding between the sleeve and the wall. This is especially true when the mortar filling is not dense or the thermal expansion coefficients of the materials differ significantly, making it difficult to guarantee sealing. The post-drilling method, on the other hand, can damage the wall integrity due to vibrations caused by the drilling tools. Furthermore, it is affected by limited operating space and inaccurate drawing verification, resulting in significant hole position deviations and the inability to create inclined pipes. The sealing material also has difficulty maintaining its effectiveness over the long term. In addition, both methods make it difficult to precisely control the drainage slope of the pipes through manual adjustment, resulting in low construction efficiency and a high risk of leakage and quality problems with long-term use. Utility Model Content

[0004] This utility model proposes a prefabricated block for embedding air conditioning sleeves in masonry walls, which solves the problems of accuracy and position deviation and poor sealing between the air conditioning pipe and the pipe caused by manual construction of the reserved hole in the related technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a precast block for embedding air conditioning sleeves in masonry walls, comprising a concrete block with an inner end and an outer end, and a reserved pipe. The inner end of the concrete block faces indoors, and the outer end faces outdoors. A connecting hole is provided through the concrete block, and the connecting hole gradually extends downwards from the inner end to the outer end. The reserved pipe passes through the connecting hole and is fixedly installed with the connecting hole. The invention also includes a sealing structure disposed between the reserved pipe and the connecting hole, the sealing structure being used to seal the gap between the reserved pipe and the connecting hole.

[0006] The present invention is further configured such that the sealing structure is silicone sealant, which seals the connecting hole and the periphery of the reserved tube.

[0007] The present invention is further configured such that the sealing structure includes a buffer groove disposed in the middle section of the connecting hole and a support groove located at both ends of the connecting hole, the buffer groove and the support groove being annular and located on the periphery of the reserved pipe; the inner diameter of the buffer groove is larger than the inner diameter of the support groove, and a flexible buffer layer is disposed between the buffer groove and the reserved pipe; a fixing ring is disposed between the support groove and the pipe, the fixing ring being used to support the pipe and seal both ends of the connecting hole.

[0008] The present invention is further configured such that the fixing ring includes a ring body embedded in the support groove, and a limiting plate is provided at the end of the ring body away from the concrete block to abut against the end face of the concrete block; an elastic sealing ring is provided between the outer side of the ring body and the support groove, and the cross-section of the elastic sealing ring is wavy; and a flexible sealing layer is also provided between the inner wall of the ring body and the reserved pipe.

[0009] The present invention is further configured such that a self-healing coating is provided on the side of the flexible sealing layer that contacts the reserved tube.

[0010] The present invention is further configured such that a limiting mechanism is provided between the fixing ring and the concrete block, the limiting mechanism including a plurality of limiting holes equally distributed on the inner wall of the support groove, a fixing groove corresponding to the position of the limiting hole is provided on the periphery of the ring body, a fixing pin is slidably disposed in the fixing groove and inserted into the limiting hole; and a driving component for driving the fixing pin to slide in the limiting hole.

[0011] The present invention is further configured such that the driving component includes a driving groove disposed on the limiting plate and perpendicular to the fixed groove, the driving groove being connected to the end of the fixed groove away from the limiting hole and the fixed groove being located in the middle of the driving groove, a driving block with a tapered end being slidably disposed in the driving groove, and the end of the fixed pin abutting against the driving block being spherically shaped and sliding against the driving block; it also includes a bolt slidably disposed in the driving groove, the end of the bolt abutting against the driving block and being rotatable relative to it, the bolt being threadedly connected to the driving groove; and it also includes an elastic element disposed between the driving groove and the driving block, the elastic element being used to drive the driving block away from the fixed pin.

[0012] The present invention is further configured such that a marking surface is provided on the top edge of the inner end of the concrete block, and size markings are symmetrically provided on both ends of the marking surface.

[0013] In summary, the beneficial effects of this utility model are as follows:

[0014] Compared with existing construction methods, this application proposes a prefabricated block for embedding air conditioning sleeves in masonry walls. By pre-setting inclined connecting holes in the concrete block and embedding pre-reserved pipes, efficient integration of air conditioning drainage pipes with the wall is achieved. As the basic component for air conditioning sleeve installation, the prefabricated block not only provides standardized construction positioning but also ensures the installation accuracy and stability of the pipes through scientific design. The inclined structure of the connecting holes allows condensate to drain smoothly, avoiding drainage problems caused by positional deviations or improper slopes during traditional manual hole drilling, significantly improving construction efficiency and the reliability of the drainage system.

[0015] Meanwhile, the precast blocks, through a multi-layered sealing structure surrounding the connecting holes, including silicone sealant, a flexible sealing layer, and a self-healing coating, provide durable leak-proof protection between the pre-installed pipes and the wall. The combined design of the flexible buffer layer, buffer groove, and support groove further absorbs stress caused by thermal expansion and contraction of the pipes or wall settlement, giving the system excellent dynamic adaptability. Furthermore, the modular design of the fixing rings and limiting mechanisms in the precast blocks facilitates rapid installation and allows for flexible disassembly and maintenance later, significantly reducing maintenance workload. Attached Figure Description

[0016] Figure 1 This is a diagram of the internal structure of this embodiment.

[0017] Figure 2 This is a diagram of the external structure of this embodiment.

[0018] Figure 3 This is a three-dimensional structural diagram of Example 3.

[0019] Figure 4 This is a cross-sectional view of Example 3.

[0020] Figure 5 yes Figure 4 Enlarged view of point A.

[0021] Reference numerals: 100, concrete block; 101, inner end; 102, outer end; 200, reserved pipe; 1, connecting hole; 2, sealing structure; 21, buffer groove; 22, support groove; 23, flexible buffer layer; 3, fixing ring; 31, ring body; 32, limiting plate; 33, elastic sealing ring; 34, flexible sealing layer; 35, self-healing coating; 4, limiting mechanism; 41, limiting hole; 42, fixing groove; 43, fixing pin; 5, driving component; 51, driving groove; 52, driving block; 53, bolt; 54, elastic component; 6, marking surface; 7, dimension marking. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of this utility model.

[0023] Example 1

[0024] like Figure 1-2 As shown, this embodiment discloses a precast block for embedding air conditioning sleeves in masonry walls, including a concrete block 100 with an inner end 101 and an outer end 102, and a reserved pipe 200. The inner end 101 of the concrete block 100 faces the interior, and the outer end 102 faces the exterior. A connecting hole 1 is provided through the concrete block 100. The connecting hole 1 extends downward from the inner end 101 to the outer end 102. The reserved pipe 200 passes through the connecting hole 1 and is fixedly installed with the connecting hole 1. It also includes a sealing structure 2 disposed between the reserved pipe 200 and the connecting hole 1. The sealing structure 2 is used to seal the gap between the reserved pipe 200 and the connecting hole 1.

[0025] By prefabricating concrete blocks 100 and embedding inclined connecting holes 1 and pre-reserved pipes 200 within them, efficient integration of air conditioning drainage pipes with the wall is achieved. During construction, workers can directly lay the prefabricated concrete blocks 100 with other bricks and stones without additional drilling or installation, avoiding drainage problems caused by positional deviations or improper slopes during traditional manual drilling, thus significantly improving construction efficiency and the reliability of the drainage system.

[0026] The inclined connecting hole 1 provides a reasonable drainage slope to ensure that condensate can flow out smoothly. The fixed reserved pipe 200 connects the pipe to the wall through the sealing structure 2 to prevent condensate from seeping into the wall. The commonly used drainage slope is between 9 and 11 degrees.

[0027] The sealing structure 2 can be silicone sealant, which is used to seal the perimeter of the connecting hole 1 and the reserved pipe 200. Silicone sealant has excellent waterproof and adhesive properties, and can form a continuous and tight sealing barrier between the hole and the pipe, blocking the flow path of condensate, thereby keeping the wall dry and extending the building's lifespan.

[0028] Example 2

[0029] Based on Embodiment 1, the structure of the concrete block 100 was improved to facilitate the positioning of the concrete block 100 during installation; a marking surface 6 is provided on the top edge of the inner end 101 of the concrete block 100, and size marks 7 are symmetrically provided at both ends of the marking surface 6.

[0030] The marking surface 6 and dimension marking 7 provide intuitive guidance for selecting the installation direction and size, reducing positioning errors during construction, helping construction personnel to quickly confirm the installation direction and size, improving construction efficiency and reducing the error rate.

[0031] Example 3

[0032] Based on Embodiment 1 or Embodiment 3, certain improvements were made to the sealing structure 2 in order to improve the sealing effect between the reserved hole and the pipe.

[0033] like Figure 3-5 As shown, the sealing structure 2 includes a buffer groove 21 disposed in the middle section of the connecting hole 1 and support grooves 22 located at both ends of the connecting hole 1. Both the buffer groove 21 and the support groove 22 are annular and located on the periphery of the reserved pipe 200. The inner diameter of the buffer groove 21 is larger than the inner diameter of the support groove 22. A flexible buffer layer 23 is disposed between the buffer groove 21 and the reserved pipe 200. The flexible buffer layer 23 is made of a highly elastic, deformation-resistant flexible material, such as silicone or polyurethane foam. This material has excellent deformation recovery ability and is suitable for buffering stress and absorbing vibration.

[0034] Since air conditioning ducts are usually made of polymer materials, which have a large coefficient of thermal expansion, while the precast concrete block 100 has a small coefficient of expansion, the expansion or contraction of the duct is more significant than that of the concrete block 100 when there is a large temperature difference in the environment (such as hot summer or cold winter). Therefore, the duct is prone to being squeezed or detached from the inner wall of the concrete block 100. However, the flexible buffer layer 23 can absorb the stress caused by thermal expansion and contraction or slight displacement of the duct, effectively reducing structural damage caused by stress concentration.

[0035] Support grooves 22 are provided at both ends of the connecting hole 1, and fixing rings 3 are provided between the fixing rings 3 and the pipe. The fixing rings 3 are used to support the pipe and seal both ends of the connecting hole 1. The fixing rings 3 in the support grooves 22 stabilize the position of the pipe, provide mechanical support, restrict the free displacement of the pipe, ensure the stability of the sealing system, and guarantee the sealing effect.

[0036] like Figure 4-5 As shown, the fixing ring 3 includes a ring body 31 embedded in the support groove 22, and a limiting plate 32 that abuts against the end face of the concrete block 100 is provided at the end of the ring body 31 away from the concrete block 100; an elastic sealing ring 33 is provided between the outer side of the ring body 31 and the support groove 22, and the cross-section of the elastic sealing ring 33 is wavy; it also includes a flexible sealing layer 34 provided between the inner wall of the ring body 31 and the reserved pipe 200.

[0037] The fixed ring 3 is locked in position by a limiting plate 32 and an elastic sealing ring 33. The ring body 31 of the fixed ring 3 is embedded in the concrete block 100. The axial displacement of the fixed ring 3 is mechanically limited by the limiting plate 32, which is integrally formed with it, to ensure positional stability. The elastic sealing ring 33 between the ring body 31 and the support groove 22 absorbs the stress caused by wall settlement or vibration through deformation. The corrugated elastic sealing ring 33 is made of wear-resistant silicone or polyurethane. By absorbing vibration and small displacements, it prevents mechanical vibration caused by wall settlement or thermal expansion and contraction, thereby avoiding seal failure. The limiting plate 32 restricts the axial movement of the fixed ring 3, ensuring that the fixed ring 3 always remains in the correct position, thereby improving the reliability of the sealing system.

[0038] To further improve the sealing effect between the fixing ring 3 and the reserved tube 200, a self-healing coating 35 is provided on the side of the flexible sealing layer 34 that contacts the reserved tube 200. The self-healing coating 35 is made of existing materials, mainly composed of microcapsule materials and some auxiliary materials. The core of the microcapsule material is polyurethane or epoxy resin, containing a low-viscosity repair fluid (such as a polymer adhesive), while the shell is a polymer film (such as a polyimide film). Under stress or friction, the repair fluid is released when the coating surface is subjected to friction or microcracks appear. When the coating surface is subjected to friction or microcracks appear, the microcapsules release the repair fluid, fill the cracks, and cure in a short time. Through the self-healing coating 35, when a small crack appears in the sealing layer, the repair fluid fills and cures, restoring the sealing effect, reducing the risk of water leakage caused by cracks, and improving the sealing effect.

[0039] like Figure 5As shown, a limiting mechanism 4 is also provided between the fixing ring 3 and the concrete block 100. The limiting mechanism 4 includes several limiting holes 41 evenly distributed on the inner wall of the support groove 22. A fixing groove 42 corresponding to the position of the limiting hole 41 is provided on the periphery of the ring body 31. A fixing pin 43 that is inserted into the limiting hole 41 is slidably provided in the fixing groove 42. It also includes a driving member 5 that drives the fixing pin 43 to slide into the limiting hole 41. The driving component 5 includes a driving groove 51 disposed on the limiting plate 32 and perpendicular to the fixing groove 42. The driving groove 51 is connected to the end of the fixing groove 42 away from the limiting hole 41, and the fixing groove 42 is located in the middle of the driving groove 51. A driving block 52 with a tapered end is slidably disposed in the driving groove 51. The end of the fixing pin 43 that abuts against the driving block 52 is spherical and slides against the driving block 52. The driving component 5 also includes a bolt 53 slidably disposed in the driving groove 51. The end of the bolt 53 abuts against the driving block 52 and can rotate relative to it. The bolt 53 is threadedly connected to the driving groove 51. The driving component 54 is also disposed between the driving groove 51 and the driving block 52. The elastic component 54 is used to drive the driving block 52 away from the fixing pin 43. The limiting mechanism 4 prevents the ring body 31 from undergoing radial or axial displacement through the engagement of the pin and the limiting hole 41.

[0040] During installation, first align the fixing groove 42 on the ring body 31 with the limiting hole 41, then insert the bolt 53 into the drive groove 51 and rotate the bolt 53. The end of the bolt 53 will push the drive block 52 to slide along the drive groove 51 and push the fixing pin 43. The end of the pin is inserted into the limiting hole 41 to complete the mechanical locking. After the fixing pin 43 is inserted into the limiting hole 41, the ring body 31 is locked in the support groove 22, and its radial and axial positions are constrained to prevent the ring body 31 from sliding or loosening.

[0041] Due to the design of the limiting mechanism 4, the tight fit between the fixing pin 43 and the limiting hole 41 allows the fixing ring 3 to adapt to minor displacements of the wall or pipe without being completely locked. This means that when pipe displacement is caused by thermal expansion and contraction or wall settlement, the limiting mechanism 4 can withstand a certain amount of displacement and dynamically adjust through an elastic mechanism, ensuring the adaptability of the sealing structure 2 to environmental changes. This ensures that the sealing structure 2 will not be damaged by pipe displacement or temperature changes. The synergistic effect of the fixing pin 43 and the limiting hole 41 allows the sealing layer to maintain good contact during pipe displacement, preventing tearing or deformation of the sealing layer and reducing the risk of water leakage.

[0042] To facilitate the installation of the fixing ring 3, a through hole corresponding to the position of the driving groove 51 can be provided on the elastic sealing ring 33. A protruding ring that engages with the through hole is provided around the driving groove 51. The elastic sealing ring 33 can be fixed to the ring body 31 by having the protruding ring engage in the through hole. The two end faces of the concrete block 100 are provided with positioning grooves, and the limiting plate 32 is provided with positioning blocks corresponding to the positions of the positioning grooves. This method is a conventional method in the art for positioning two structures, so it will not be elaborated on further.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast block for embedding air conditioning sleeves in masonry walls, comprising a concrete block (100) having an inner end (101) and an outer end (102) and a reserved pipe (200), wherein the inner end (101) of the concrete block (100) faces indoors and the outer end (102) faces outdoors, characterized in that, A through hole (1) is provided on the concrete block (100). The through hole (1) extends downward gradually from the inner end (101) to the outer end (102). The reserved tube (200) passes through the through hole (1) and is fixedly installed with the through hole (1). The reserved tube (200) also includes a sealing structure (2) installed between the reserved tube (200) and the through hole (1). The sealing structure (2) is used to seal the gap between the reserved tube (200) and the through hole (1).

2. A precast block for embedding air conditioning sleeves in masonry walls according to claim 1, characterized in that, The sealing structure (2) is silicone sealant, which seals the periphery of the connecting hole (1) and the reserved tube (200).

3. A precast block for embedding air conditioning sleeves in masonry walls according to claim 1 or 2, characterized in that, The sealing structure (2) includes a buffer groove (21) disposed in the middle section of the connecting hole (1) and a support groove (22) located at both ends of the connecting hole (1). The buffer groove (21) and the support groove (22) are both annular and located on the periphery of the reserved pipe (200). The inner diameter of the buffer groove (21) is larger than the inner diameter of the support groove (22). A flexible buffer layer (23) is disposed between the buffer groove (21) and the reserved pipe (200). A fixing ring (3) is disposed between the support groove (22) and the pipe. The fixing ring (3) is used to support the pipe and seal both ends of the connecting hole (1).

4. A precast block for embedding air conditioning sleeves in masonry walls according to claim 3, characterized in that, The fixing ring (3) includes a ring body (31) embedded in the support groove (22), and a limiting plate (32) is provided at the end of the ring body (31) away from the concrete block (100) to abut against the end face of the concrete block (100); an elastic sealing ring (33) is provided between the outer side of the ring body (31) and the support groove (22), and the cross-section of the elastic sealing ring (33) is wavy; it also includes a flexible sealing layer (34) provided between the inner wall of the ring body (31) and the reserved pipe (200).

5. A precast block for embedding air conditioning sleeves in masonry walls according to claim 4, characterized in that, The flexible sealing layer (34) is provided with a self-healing coating (35) on the side that contacts the reserved tube (200).

6. A precast block for embedding air conditioning sleeves in masonry walls according to claim 5, characterized in that, A limiting mechanism (4) is also provided between the fixing ring (3) and the concrete block (100). The limiting mechanism (4) includes several limiting holes (41) evenly distributed on the inner wall of the support groove (22). A fixing groove (42) corresponding to the position of the limiting hole (41) is provided on the periphery of the ring body (31). A fixing pin (43) that is inserted into the limiting hole (41) is slidably provided in the fixing groove (42). The mechanism also includes a driving member (5) that drives the fixing pin (43) to slide into the limiting hole (41).

7. A precast block for embedding air conditioning sleeves in masonry walls according to claim 6, characterized in that, The driving component (5) includes a driving groove (51) disposed on the limiting plate (32) and perpendicular to the fixing groove (42). The driving groove (51) is connected to the end of the fixing groove (42) away from the limiting hole (41), and the fixing groove (42) is located in the middle of the driving groove (51). A driving block (52) with a tapered end is slidably disposed in the driving groove (51). The end of the fixing pin (43) that abuts against the driving block (52) is spherical and slides against the driving block (52). The component also includes a bolt (53) slidably disposed in the driving groove (51). The end of the bolt (53) abuts against the driving block (52) and can rotate relative to it. The bolt (53) is threadedly connected to the driving groove (51). The component also includes an elastic element (54) disposed between the driving groove (51) and the driving block (52). The elastic element (54) is used to drive the driving block (52) away from the fixing pin (43).

8. A precast block for embedding air conditioning sleeves in masonry walls according to claim 1 or 2, characterized in that, The inner end (101) of the concrete block (100) has a marking surface (6) at its top edge, and size marks (7) are symmetrically arranged at both ends of the marking surface (6).

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