Groove channel of pre-embedded line pipe and dry-method sealing construction method thereof

Abstract

The invention provides a channel of a pre-embedded line pipe and a dry-method sealing construction method of the channel, and belongs to the technical field of building construction. The embedded wire pipe comprises an inverted-T-shaped channel which is formed in a wall base layer and used for providing an installation space for the embedded wire pipe; the caulking rock wool strips are used for filling gaps between the line pipes and gaps between the line pipes and the wall body; the plugging rock wool board is applied to the outer side of the caulking rock wool strip and completely fills the U-shaped channel; the non-cured asphalt layers are painted on the expanded grooves in the two sides of the U-shaped channel; and the cement pressure plate cover plate is used for covering the inverted-T-shaped channel, is levelly aligned with the wall base layers on the two sides and serves as a final covering layer for closing the inverted-T-shaped channel. According to the method, surface layer reflection cracks caused by the fact that cement mortar or fine aggregate concrete is adopted to seal the line pipe groove due to the fact that a filling material is prone to water loss and shrinkage and not prone to being filled densely and different materials are different in temperature shrinkage can be effectively avoided, and meanwhile the sound insulation performance of the line groove is guaranteed by filling the caulking rock wool strips and blocking the rock wool board.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a groove of a pre-buried wire conduit and a dry sealing construction method thereof. Background Art

[0002] In the current construction of various types of houses and industrial buildings, pre-buried wire conduits during the main casting phase mainly cover horizontal trunk lines, and the proportion of vertical wire conduits pre-buried or reserved in grooves within the main structure is extremely low. The remaining vertical pipelines and branch lines (such as sockets, switch lines, etc.) need to be laid after the construction of the secondary structure walls is completed. The current mainstream secondary structural materials, ALC strips and aerated blocks, are both solid blocks. In order to achieve the laying of vertical pipelines and branch lines, grooves need to be cut on their surfaces and wire conduits embedded. After the wire conduits are laid, cement mortar or fine stone concrete is used to seal the grooves. However, this method is very likely to cause hollowing and cracking of the plaster layer due to water loss and shrinkage of the filling material or loose filling. At the same time, the edges of the grooves shrink and deform due to the difference in thermal expansion coefficients of the two materials, eventually forming reflective cracks in the surface layer, which in turn affects the construction quality. Summary of the Invention

[0003] In view of this, in order to solve the technical problem of surface reflective cracks caused by water loss and shrinkage of the filling material, loose filling or temperature shrinkage difference between the two materials of the groove when the pre-buried or post-opened grooves in the wall base of the prior art are closed, on the one hand, the present invention provides a groove for pre-buried wire pipes, which can effectively avoid the use of cement mortar or fine stone concrete to close the wire pipe grooves due to the easy water loss and shrinkage of the filling material, the difficulty of filling densely and the different temperature shrinkage of different materials. At the same time, the sound insulation of the wire grooves is ensured by filling the joints with rock wool strips and sealing the rock wool boards.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A channel for a pre-buried wire conduit, comprising:

[0006] A convex groove is provided on the wall base to provide installation space for pre-buried wire tubes. The convex groove is formed by expanding the U-shaped groove to both sides.

[0007] Caulking rock wool strips are used to fill gaps between wire pipes and between wire pipes and walls;

[0008] The sealing rock wool board is applied to the outside of the caulking rock wool strip to completely fill the U-shaped groove and form a preliminary closure of the convex groove;

[0009] The non-curing asphalt layer is applied on the expanded grooves on both sides of the U-shaped channel;

[0010] The cement pressure plate cover is used to cover the convex groove and is aligned with the wall base on both sides to serve as the final covering layer to close the convex groove.

[0011] Preferably, the convex groove is expanded to a range of 150 mm on both sides through the U-shaped groove, and the expanded groove depth is 15 mm.

[0012] Preferably, the thickness of the caulking rock wool strip is consistent with the outer diameter of the wire pipe, so that the caulking rock wool strip is flush with the wire pipe after filling.

[0013] Preferably, the non-curing asphalt layer is applied to the front and side facades of the expanded trench.

[0014] Preferably, the cement pressure plate cover is covered on the convex groove by bolts.

[0015] On the other hand, the present invention also provides a dry sealing construction method for the groove of the above-mentioned pre-buried wire conduit, comprising the following steps:

[0016] Step (1), opening a U-shaped groove on the wall, and after the U-shaped groove is completed, expanding the groove to both sides to form a convex groove;

[0017] Step (2), pre-buried wire tube;

[0018] Step (3): After the installation of the inline pipes is completed, fill the gaps between the inline pipes and the gaps between the inline pipes and the base layers of the walls on both sides with rock wool strips;

[0019] Step (4): After the caulking rock wool strips are filled, a layer of sealing rock wool board is applied on the outside of the caulking rock wool strips to completely fill the U-shaped groove;

[0020] Step (5): applying a non-curing asphalt layer on the front and side facades of the expanded groove, and covering the convex groove with a cement pressure plate cover before the non-curing asphalt layer solidifies.

[0021] The pre-buried conduit trough and dry sealing construction method provided by the present invention can effectively avoid the occurrence of reflective cracks in the surface layer caused by the use of cement mortar or fine stone concrete to seal the conduit trough due to the easy shrinkage of the filler material due to water loss, the difficulty of filling it tightly, and the different temperature shrinkage properties of different materials. At the same time, the sound insulation of the conduit trough is ensured by filling the joints with rock wool strips and sealing with rock wool boards. Compared with the existing technology, it has the following beneficial effects:

[0022] (1) Targeted solutions to the defects of traditional wet operations

[0023] Traditionally, cement mortar or fine stone concrete is used to seal channels. This can lead to hollowing and cracking of the plaster layer due to water loss and shrinkage of the filler, as well as loose filling. This method, however, replaces wet filling materials with dry filling (rock wool strips for caulking and rock wool boards for sealing), fundamentally avoiding the shrinkage caused by water loss. The elastic filling properties of rock wool also address the pain point of loose filling with traditional materials.

[0024] (2) effectively inhibit the surface layer reflection cracks

[0025] After the channel is closed, due to the difference in temperature shrinkage between the wall base and the closing material (such as cement mortar), reflection cracks are easily formed in the surface layer. This method uses the dual characteristics of "high adhesion + high ductility" of the non-cured asphalt bonding layer: on the one hand, the adhesion of asphalt ensures that the cement pressure plate cover plate is tightly connected with the wall base; on the other hand, its ductility can coordinate the deformation difference caused by temperature changes, avoiding cracks.

[0026] (3) strong structural stability and durability

[0027] U-shaped channel: the design of expanding the channel 150mm (depth 15mm) on both sides of the "U" type channel provides installation space for fixing bolts and cement pressure plate cover plates, enhancing the load-bearing capacity of the closed structure.

[0028] Fixed bolt reinforcement: the cement pressure plate cover plate is fastened with the wall base through expansion bolts, further strengthening the stability of the closed layer and avoiding the cover plate from loosening and falling off due to external force or long-term use.

[0029] (4) additional function improvement (sound insulation)

[0030] The filling of the caulking rock wool strip and the blocking rock wool board significantly improves the sound insulation performance of the wire slot area by utilizing the porous sound absorption characteristics of rock wool materials, providing additional functional advantages compared to traditional cement mortar closure.

[0031] In summary, the present application is constructed according to the wire pipe channel dry closure construction method, which consists of a U-shaped channel, a caulking rock wool strip, a blocking rock wool board, a non-cured asphalt layer, a cement pressure plate cover plate, and bolts. First, the dry operation composed of rock wool strips, rock wool boards, cement pressure plates, and fixed bolts avoids the problem of water shrinkage of the filling material. In addition, non-cured asphalt is applied between the cement pressure plate cover plate and the wall base to ensure the tightness of the connection between the cover plate and the wall base. At the same time, when the two materials deform inconsistently due to temperature changes, the ductility of the non-cured asphalt ensures that they do not crack. Finally, the cover plate is fixed to the wall base by fixed bolts, further ensuring the stability of the closure. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a perspective view of the overall structure of the present application;

[0033] Figure 2 is a perspective view of the U-shaped channel slotting;

[0034] Figure 3 is a perspective view after the wire pipe is embedded;

[0035] Figure 4 A three-dimensional diagram of rock wool strips for filling caulking;

[0036] Figure 5 A three-dimensional diagram of the spatial relationship between the caulking rock wool strips and the wire tube;

[0037] Figure 6 This is a three-dimensional diagram of the rock wool board for sealing;

[0038] Figure 7 This is a three-dimensional diagram after the bolts are buried;

[0039] Figure 8 This is a three-dimensional picture after applying non-curing asphalt;

[0040] In the figure, 1. convex groove; 11. U-shaped groove; 12. expanded groove; 2. wall base; 3. wire pipe; 4. caulking rock wool strip; 5. sealing rock wool board; 6. non-curing asphalt layer; 7. cement pressure plate cover; 8. bolts. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work shall fall within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0044] like Figure 1-8 As shown, the present invention provides a channel for a pre-buried wire tube 3, comprising:

[0045] The convex groove 1 is provided on the wall base 2 to provide installation space for the embedded wire pipe 3. The convex groove 1 is formed by expanding the U-shaped groove 11 to 12 on both sides. Among them, the convex groove 1 is preferably provided on the secondary structure (such as ALC strips, aerated blocks) or the main structure, and is formed by expanding the U-shaped groove 11 to 12150mm on both sides, with a depth of 15mm. It serves as the basic carrier for components such as the wire pipe 3, the caulking rock wool strip 4, and the sealing rock wool board 5, providing space for subsequent filling and fixation. The expansion groove 12 of the convex groove 1 is designed to provide installation space for the fixing bolts 8 and the cement pressure plate cover 7 to ensure the stability of the dry closed structure.

[0046] Rock wool strips 4 are used to fill gaps between conduits 3 and between conduits 3 and the wall. They are tightly packed with rock wool strips, with a thickness equal to the outer diameter of conduits 3, and are flush with conduits 3 after filling. This dry filling method prevents shrinkage of cement mortar due to water loss and improves sound insulation in the cable trunking.

[0047] The sealing rock wool board 5 is applied to the outside of the caulking rock wool strip 4, completely filling the U-shaped groove 11 and covering the surface of the caulking rock wool strip 4, forming a preliminary closure of the convex groove 1. Further filling the groove space, combined with the rock wool strip to achieve dry operation, avoid the problem of insufficient density of traditional filling materials.

[0048] The non-curing asphalt layer 6 is applied to the expansion groove 12 on both sides of the U-shaped channel 11. Among them, the non-curing asphalt layer 6 is preferably applied to the front facade and side facade within the range of the expansion groove 12. Specifically, it is applied between the wall base 2 and the cement pressure plate cover 7, and bonded to the cover before the asphalt condenses. The adhesion of the non-curing asphalt is used to ensure that the cover is tightly connected to the wall base 2; its ductility can coordinate the material deformation differences caused by temperature changes and avoid reflective cracks in the surface layer. It should be noted that in the present invention, the non-curing asphalt can be a conventional type of non-curing asphalt on the market, and there are no special requirements for this. In addition, while ensuring the bonding performance of the non-curing asphalt layer, the coating does not drip due to excessive thickness. The thickness of the coating is preferably 2 mm.

[0049] The cement pressure plate cover 7 is used to cover the convex groove 1 and align with the wall base 2 on both sides. It serves as the final covering layer for closing the convex groove 1, protecting the internal wire pipe 3 and filling materials, and improving the stability of the structure. It is preferably fixed to the wall base 2 by bolts 8. For example, it is fixed by using expansion bolts 8 + nuts. The bolts 8 are buried in the 150mm expansion grooves 12 on both sides and buried at a certain interval. One end is fixed to the wall base 2, and the other end is fastened to the cement pressure plate cover 7 by nuts, which is used to strengthen the connection between the cement pressure plate and the wall to ensure the long-term stability of the closed structure.

[0050] On the other hand, the present invention also provides a dry sealing construction method for the groove of the above-mentioned pre-buried wire pipe 3, comprising the following steps:

[0051] Step (1) is to open a U-shaped groove 11 on the wall. After the U-shaped groove 11 is completed, the groove 12 is expanded to both sides to form a convex groove 1. Specifically, the following steps can be performed:

[0052] A U-shaped channel 11 is cut into the wall based on the placement of the wire conduit 3 and the thickness of the protective layer. Once the U-shaped channel 11 is completed, an expansion channel 12 is added within 150mm on either side, with a depth of 15mm, ensuring the channel ultimately forms a "convex" shape, resulting in a "convex" channel 1. If the channel is pre-reserved in the main structure, it should be pre-set to the "convex" shape.

[0053] Step (2), pre-buried wire conduit 3, specifically can be: install the wire conduit 3 according to the process of burying normal water and electricity conduit 3.

[0054] Step (3): After the installation of the line pipes 3 is completed, the gaps between the line pipes 3 and the gaps between the line pipes 3 and the wall bases 2 on both sides are filled with rock wool strips 4. Specifically, the following steps can be performed:

[0055] After the inline pipes 3 are installed, fill the gaps between the inline pipes 3 and the gaps between the inline pipes 3 and the walls on both sides with caulking rock wool strips 4. The thickness of the caulking rock wool strips 4 should be consistent with the outer diameter of the inline pipes 3, ensuring that the caulking rock wool strips 4 are flush with the inline pipes 3 after caulking. After the caulking rock wool strips 4 are filled, a layer of sealing rock wool board 5 is applied to the outside of the caulking rock wool strips 4, completely filling the "U"-shaped groove with the rock wool board.

[0056] Step (4): After the caulking rock wool strips 4 are filled, a layer of sealing rock wool board 5 is applied on the outside of the caulking rock wool strips 4 to completely fill the U-shaped groove 11.

[0057] After the blocking rock wool board 5 is fixed, expansion bolts 8 are buried at a certain interval in the 150 mm wide expansion grooves 12 on both sides as fixing bolts 8 of the cement board cover.

[0058] Step (5) is to apply a non-curing asphalt layer 6 on the front and side elevations of the expanded groove 12, and to cover the convex groove 1 with a cement pressure plate cover 7 before the non-curing asphalt layer 6 solidifies. Specifically, the following steps can be performed:

[0059] After the construction of the fixing bolts 8 is completed, non-solidified asphalt is applied to the front and side facades within the range of 150mm expanded groove 12 on both sides. Before the asphalt solidifies, the cement pressure plate cover 7 is sealed on the groove and fixed with nuts and expansion bolts 8. The fixed cement pressure plate cover 7 is ensured to be consistent in flatness with the base walls on both sides, thereby completing the dry sealing construction of the entire groove.

[0060] The above description is merely a preferred embodiment of the present invention. However, the scope of protection of the present invention is not limited thereto; any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A channel for pre-buried wire conduit, characterized in that: include: A convex groove is provided on the wall base to provide installation space for pre-buried wire tubes. The convex groove is formed by expanding the U-shaped groove to both sides. Caulking rock wool strips are used to fill gaps between wire pipes and between wire pipes and walls; The sealing rock wool board is applied to the outside of the caulking rock wool strip to completely fill the U-shaped groove and form a preliminary closure of the convex groove; The non-curing asphalt layer is applied on the expanded grooves on both sides of the U-shaped channel; The cement pressure plate cover is used to cover the convex groove and is aligned with the wall base on both sides to serve as the final covering layer to close the convex groove.

2. The groove of the pre-buried wire pipe according to claim 1, characterized in that: The convex groove is expanded within a range of 150mm on both sides through the U-shaped groove, and the expanded groove depth is 15mm.

3. The groove of the pre-buried wire pipe according to claim 1, characterized in that: The thickness of the caulking rock wool strip is consistent with the outer diameter of the wire pipe, and the caulking rock wool strip is used to fill the joints so that it is flush with the wire pipe.

4. The groove of the pre-buried wire pipe according to claim 1, characterized in that: The non-curing asphalt layer is applied to the front and side facades of the expansion groove.

5. A groove of a pre-buried wire pipe according to any one of claims 1 to 4, characterized in that: The cement pressure plate cover is covered on the convex groove by bolts.

6. A dry sealing construction method for a pre-buried wire conduit groove according to any one of claims 1 to 5, characterized in that: The steps include: Step (1), opening a U-shaped groove on the wall, and after the U-shaped groove is completed, expanding the groove to both sides to form a convex groove; Step (2), pre-buried wire tube; Step (3): After the installation of the inline pipes is completed, fill the gaps between the inline pipes and the gaps between the inline pipes and the base layers of the walls on both sides with rock wool strips; Step (4): After the caulking rock wool strips are filled, a layer of sealing rock wool board is applied on the outside of the caulking rock wool strips to completely fill the U-shaped groove; Step (5): applying a non-curing asphalt layer on the front and side facades of the expanded groove, and covering the convex groove with a cement pressure plate cover before the non-curing asphalt layer solidifies.

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