Top plate embedded sleeve structure applied to concrete modular integrated building

Abstract

The utility model discloses a top plate pre-embedded sleeve structure applied to a concrete modularized integrated building. The top plate pre-embedded sleeve structure comprises a pre-embedded sleeve, a water stop joint, a water drainage pipe, an upper layer module bottom plate, a bedding layer, a cast-in-place structural plate and a lower layer module top plate, wherein the upper layer module bottom plate, the bedding layer, the cast-in-place structural plate and the lower layer module top plate are sequentially arranged from top to bottom. The embedded sleeve comprises a top pipe body and a bottom pipe body, the bottom pipe body is embedded in a top plate of the lower-layer module, the top pipe body is made of a flexible material, and the top pipe body sequentially penetrates through the cast-in-place structural plate and the bedding layer and abuts against a bottom plate of the upper-layer module to form a sealing structure. The water stop joint is positioned right above the pre-embedded sleeve and is pre-embedded and fixed in the bottom plate of the upper layer module; the drainage pipe penetrates out of the embedded sleeve to be connected with a lower opening of the water stop joint. The pre-embedded sleeve structure of the top plate can ensure that accumulated water in a bedding layer does not enter the sleeve to flow into the next layer, and solves the problems that in the prior art, the workload of a construction site is large, construction procedures are tedious, the height of a bottom pre-embedded steel sleeve is difficult to control, and the bedding layer leaks water.

Description

Technical Field

[0001] The embodiment of the utility model belongs to the technical field of assembled modular buildings, and more specifically, relates to a top plate pre-embedded sleeve structure applied to concrete modular integrated buildings. Background Art

[0002] Concrete modular integrated buildings are made of concrete module units made in the factory, which are connected on site through dry connection of frame modules to form modular stacked frame structures; or partition wall modules are used as templates to cast concrete on site to form concrete modular cast-in-place frame buildings or concrete modular cast-in-place shear wall buildings. According to Article 3.3.13 of GB 50242-2002 "Code for Acceptance of Construction Quality of Water Supply, Drainage and Heating Engineering for Buildings", "Pipes passing through walls and floors should be provided with metal or plastic casings" and Pages 42 and 59 of Standard Atlas 19S406 "Installation of Building Drainage Pipes - Plastic Pipes", in order to meet the construction requirements, pipes passing through floors usually adopt the method of pre-buried casings or reserved holes.

[0003] However, there are the following disadvantages when the pipeline passes through the floor: (1) When reserving a hole, the construction site needs to reserve a second hole in the cast-in-place structural plate, which results in a large workload on the construction site. After the cast-in-place structural plate is cast, there is a 20mm gap between the lower module and the upper module. Water in the mortar layer can easily enter the lower module through the hole, polluting the ceiling and affecting the use of the lower module. (2) When pre-embedded steel casing, the height of the steel casing above the module top plate must be precise. If the casing is too high, after the cast-in-place structural plate is cast, during the hoisting and adjustment of the upper module, the bottom plate of the upper module can easily squeeze the steel casing, causing it to bend, damage or break, affecting the module hoisting and pipeline installation, especially for bathroom modules with a large number of pre-embedded steel casings. If the casing is too low, water in the mortar layer can easily enter the lower module through the steel casing, polluting the ceiling and affecting the use of the lower module.

[0004] Therefore, at this stage, there is an urgent need for a top plate pre-buried casing structure applied to concrete modular integrated buildings, which can solve the sealing problem between the casing and the top plate in the mortar layer, and ensure that the water accumulated in the mortar layer does not enter the casing and flow into the next layer, thereby overcoming the problems of large workload on the construction site, cumbersome construction procedures, and water seepage in the mortar layer of concrete modular integrated buildings in the prior art. Summary of the invention

[0005] In view of the problems that the modular integrated buildings in the prior art are not sealed tightly, resulting in water accumulation in the slurry layer entering the casing and flowing into the next layer and complicated construction procedures, the utility model provides a top plate pre-embedded casing structure applied to concrete modular integrated buildings to solve such problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a top plate embedded sleeve structure applied to concrete modular integrated buildings, including an upper module bottom plate, a mortar layer, a cast-in-place structural plate and a lower module top plate arranged in sequence from top to bottom; a water stop joint embedded and fixed in the upper module bottom plate; an embedded sleeve whose bottom is embedded and fixed in the lower module top plate, including a top pipe body and a bottom pipe body, the top pipe body is made of a flexible material with a certain compressibility, which passes through the cast-in-place structural plate, the mortar layer in sequence and contacts with the upper module bottom plate to form a sealing structure; and a pipeline, which passes through the embedded sleeve and is connected to the lower end of the water stop joint to discharge sanitary water.

[0007] Furthermore, the top tube body includes an integrally formed flared tube portion, an oblique belly portion and a connecting portion; the connecting portion is a tubular structure, which is fixedly connected to the top of the bottom tube body through a vulcanization process; the bottom of the oblique belly portion is fixedly connected to the top of the connecting portion, which is an inverted cone tubular structure, gradually expanding the tube diameter from bottom to top; the flared tube portion is a tubular structure, and its bottom is fixedly connected to the top of the oblique belly portion.

[0008] Furthermore, the bottom of the embedded sleeve is flush with the top plate of the lower module, and the top is higher than the cast-in-place structural plate.

[0009] Furthermore, the bottom tube body is made of rigid material.

[0010] Furthermore, the vertical center axis of the embedded sleeve coincides with the vertical center axis of the water stop joint.

[0011] Furthermore, the upper opening of the water stop joint is connected to a drain pipe, and the sanitary ware discharges sanitary water through the drain pipe.

[0012] Furthermore, the thickness of the top plate of the lower module is 55 mm; the thickness of the cast-in-place structural plate is 75 mm; the thickness of the mortar layer is 20 mm; and the length of the embedded casing is 160 mm.

[0013] Furthermore, the bottom pipe body is made of hot-dip galvanized steel pipe.

[0014] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0015] (1) The embedded casing structure of the utility model is provided with an embedded casing 3 including a top tube body and a bottom tube body on the top plate 1 of the lower module; the top tube body is made of flexible material, including rubber or silicone, etc., and has excellent waterproof, wear-resistant, corrosion-resistant and other properties, and has a certain elasticity, and can resist 10-20mm deformation. It contacts with the bottom of the bottom plate of the upper module to form a sealing structure, ensuring that the water accumulated in the mortar layer does not enter the casing and flow into the next layer. Compared with only reserving a hole or only embedding a steel casing, the risk of water accumulation and seepage in the mortar layer between the upper and lower modules is eliminated, and the occurrence of water accumulation polluting the ceiling and affecting the poor use of the lower module is avoided.

[0016] (2) The embedded casing structure of the utility model solves the problem of water accumulation and seepage in the slurry layer by optimizing the structure of the embedded casing without affecting the module lifting, increasing the workload on the construction site, and affecting the installation and connection of the pipeline.

[0017] (3) The embedded sleeve structure of the utility model can be fixed synchronously when the top plate of the lower module is cast, and is shipped from the factory together with the top plate of the lower module. It is easy to install and fix, and no additional treatment is required on the construction site, which reduces the construction process. Compared with reserving holes twice on the cast-in-place structural plate, it greatly reduces the workload and construction errors on the construction site, which is beneficial to on-site construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a top plate pre-buried casing structure applied to a concrete modular integrated building in an embodiment of the utility model;

[0019] Figure 2 This is a structural schematic diagram of the embedded sleeve installed in the top plate of the lower module in the embodiment of the utility model;

[0020] Figure 3 It is a top view of the embedded sleeve in the embodiment of the utility model;

[0021] Figure 4 It is a cross-sectional view of the embedded sleeve in the embodiment of the utility model.

[0022] In all the drawings, the same figure numbers represent the same technical features, specifically: 1-lower module top plate, 2-cast-in-place structural plate, 3-embedded casing, 31-top pipe body, 311-expanded pipe part, 312-oblique belly, 313-connecting part, 32-bottom pipe body, 4-pipeline, 5-flame retardant dense layer, 6-mortar layer, 7-upper module bottom plate, 8-water stop joint, 9-drainage pipe, 10-sanitary appliances. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] like Figure 1-4 As shown, the utility model is a top plate pre-embedded sleeve structure applied to concrete modular integrated buildings, including a pre-embedded sleeve 3, a pipe 4, a water stop 8, and an upper module bottom plate 7, a mortar layer 6, a cast-in-place structural plate 2 and a lower module top plate 1 arranged in sequence from top to bottom. The pre-embedded sleeve 3 includes a top pipe body 31 and a bottom pipe body 32, wherein the bottom pipe body 32 is pre-embedded in the lower module top plate 1, and the top pipe body 31 is made of a flexible material, which passes through the cast-in-place structural plate 2 and the mortar layer 6 in sequence and contacts with the upper module bottom plate 7 to form a sealing structure. The water stop 8 is located directly above the pre-embedded sleeve 3, and is pre-embedded and fixed in the upper module bottom plate 7; the pipe 4 passes through the pre-embedded sleeve 3 and is connected to the lower end of the water stop 8 to discharge sanitary water. The top plate pre-buried casing structure of the utility model solves the sealing problem between the casing and the top plate in the mortar layer, thereby ensuring that water accumulated in the mortar layer does not enter the casing and flow into the next layer, thereby overcoming the problems of large workload on the construction site, complicated construction procedures, and water seepage in the mortar layer of concrete modular integrated buildings in the prior art.

[0025] like Figure 3-4 As shown, in the embodiment of the utility model, the embedded sleeve 3 is used to pass through the pipeline 4, and its vertical center axis coincides with the vertical center axis of the water stop joint 8, including a top pipe body 31 and a bottom pipe body 32. The top pipe body 31 is made of a certain compressible flexible material, including rubber or silicone, etc., and has excellent waterproof, wear-resistant, corrosion-resistant and other properties, and has a certain elasticity and can resist 10-20mm deformation; the bottom pipe body 32 is made of a rigid material, including ·, which is embedded in the lower module top plate 1, and the bottom is flush with the lower module top plate 1.

[0026] Furthermore, the top tube body 31 includes an integrally formed flared tube portion 311, an oblique belly portion 312 and a connecting portion 313. The connecting portion 313 is a tubular structure, which is fixedly connected to the top of the bottom tube body 32 through a vulcanization process; the bottom of the oblique belly portion 312 is fixedly connected to the top of the connecting portion 313, which is an inverted tapered tubular structure, and the tube diameter is gradually expanded from bottom to top; the flared tube portion 311 is a tubular structure, and its bottom is fixedly connected to the top of the oblique belly portion 312.

[0027] The construction steps of the embedded sleeve structure are as follows: pre-fabricate the lower module top plate 1 and the upper module bottom plate 7, place the embedded sleeve 3 at the designated point when pouring the lower module top plate 1, tie and fix it with steel bars, pour concrete, and remove the formwork after forming, so that the embedded sleeve 3 is fixedly connected to the lower module top plate 1 as a whole; place the water stop 8 at the designated point when pouring the upper module bottom plate 7, tie and fix it with steel bars, and pour concrete, and remove the formwork after forming, so that the water stop 8 is fixedly connected to the upper module bottom plate 7 as a whole; hoist the lower module top plate 1 to the installation wall for fixation, and cast the cast-in-place structural plate 2 on the lower module top plate 1; spread a layer of mortar on the top of the cast-in-place structural plate 2, and the mortar height does not exceed the top of the embedded sleeve 3; hoist the upper module bottom plate 7 to the installation wall , so that it is located above the top plate 1 of the lower module, and is installed and fixed after precise position adjustment. At this time, the water stop joint 8 is aligned with the embedded sleeve 3, and the top of the embedded sleeve 3 is in conflict with the bottom of the upper module bottom plate 7 to form a sealing structure, which prevents the water in the mortar from entering the embedded sleeve 3 and flowing into the next layer; after the mortar solidifies, a mortar layer 6 is formed to fill the gap between the upper module bottom plate 7 and the cast-in-place structural plate 2; a pipe 4 is inserted from the bottom of the embedded sleeve 3 to connect it with the lower end of the water stop joint 8; a flame retardant material is used to fill the gap between the pipe 4 and the embedded sleeve 3 to form a flame retardant dense layer 5, which can achieve an organic combination of anti-leakage and fire prevention measures to prevent the fire from spreading through the drainage pipe; a sanitary appliance 10 is installed to connect its drainage pipe 9 with the upper end of the water stop joint 8 to complete the construction of the embedded sleeve structure.

[0028] In a specific embodiment of the present invention, the thickness of the lower module top plate 1 is 55mm; the thickness of the cast-in-place structural plate 2 is 75mm; the thickness of the mortar layer 6 is 20mm; the length of the embedded sleeve 3 is 160mm, the bottom of which is flush with the lower module top plate 1, and the top of which is 105mm higher than the top of the lower module top plate 1, that is, 30mm higher than the surface of the cast-in-place structural plate 2; after the lower module top plate 1 is hoisted, because the embedded sleeve 3 is 30mm higher than the surface of the cast-in-place structural plate 2, there is no need to perform secondary protection on the construction site, and the cast-in-place structural plate 2 can be directly cast; at this time, the embedded sleeve 3 is tightly combined with the cast-in-place structural plate 2, and the top of the upper module bottom plate 7 is squeezed when it is in place to form a sealing structure, which can avoid water seepage in the mortar layer 6; if there is a hoisting error within 10mm, because the flexible material at the top of the embedded sleeve 3 has a certain elastic variable, and the top diameter becomes larger, it will not cause damage or breakage due to deformation, only partial bending will occur, and it will not affect the module hoisting and pipeline installation connection.

[0029] The embedded sleeve structure of the utility model is provided with an embedded sleeve 3 including a top tube body 31 and a bottom tube body 32 on the top plate 1 of the lower module; the top tube body 31 is made of flexible material, including rubber or silicone, etc., and has excellent waterproof, wear-resistant, corrosion-resistant and other properties, and has a certain elasticity, and can resist 10-20mm deformation, and it abuts against the bottom of the bottom plate 7 of the upper module to form a sealing structure, ensuring that the water accumulated in the slurry layer does not enter the sleeve and flow into the next layer. Compared with only reserving a hole or only embedding a steel sleeve, the risk of water accumulation and seepage in the slurry layer between the upper and lower modules is eliminated, and the occurrence of poor conditions such as water pollution of the ceiling and affecting the use of the lower module is avoided.

[0030] The embedded casing structure of the utility model solves the problem of water accumulation and seepage in the slurry layer by optimizing the structure of the embedded casing 3 without affecting the module hoisting, increasing the workload on the construction site, and affecting the installation and connection of the pipeline.

[0031] The embedded sleeve structure of the utility model, the embedded sleeve 3 can be synchronously fixed when the lower module top plate 1 is cast, and is shipped from the factory together with the lower module top plate 1. It is easy to install and fix, and no additional treatment is required on the construction site, which reduces the construction process. Compared with reserving a hole for the second time on the cast-in-place structural plate 2, it greatly reduces the workload and construction errors on the construction site, which is beneficial to on-site construction.

[0032] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A top plate pre-buried casing structure used in concrete modular integrated buildings, characterized in that: include: An upper module bottom plate (7), a mortar layer (6), a cast-in-place structural plate (2) and a lower module top plate (1) are sequentially arranged from top to bottom; A water stop joint (8) pre-buried and fixed in the upper module bottom plate (7); The embedded sleeve (3) is embedded and fixed in the top plate (1) of the lower module, and comprises a top pipe body (31) and a bottom pipe body (32). The top pipe body (31) is made of a flexible material with a certain compressibility, and passes through the cast-in-place structural plate (2) and the mortar layer (6) in sequence and contacts the bottom plate (7) of the upper module to form a sealing structure. And a pipeline (4), which passes through the pre-buried sleeve (3) and is connected to the lower end of the water stop joint (8) to discharge sanitary water.

2. The top plate pre-buried casing structure used in concrete modular integrated building according to claim 1, characterized in that: The top tube body (31) comprises an integrally formed flared tube portion (311), an oblique belly portion (312) and a connecting portion (31); the connecting portion (313) is a tubular structure, which is fixedly connected to the top of the bottom tube body (32) through a vulcanization process; the bottom of the oblique belly portion (312) is fixedly connected to the top of the connecting portion (313), which is an inverted cone-shaped tubular structure, and the tube diameter is gradually expanded from bottom to top; the flared tube portion (311) is a tubular structure, and its bottom is fixedly connected to the top of the oblique belly portion (312).

3. The top plate pre-buried casing structure used in concrete modular integrated building according to claim 1, characterized in that: The bottom of the embedded sleeve (3) is flush with the lower module top plate (1), and the top is higher than the cast-in-place structural plate (2).

4. A top plate pre-buried casing structure for concrete modular integrated building according to any one of claims 1 to 3, characterized in that: The bottom tube body (32) is made of rigid material.

5. A top plate pre-buried casing structure for concrete modular integrated building according to any one of claims 1 to 3, characterized in that: The vertical center axis of the embedded sleeve (3) coincides with the vertical center axis of the water stop joint (8).

6. A top plate pre-buried casing structure for concrete modular integrated building according to any one of claims 1 to 3, characterized in that: The upper opening of the water stop joint (8) is connected to a drainage pipe (9), and the sanitary ware (10) discharges sanitary water through the drainage pipe (9).

7. A top plate pre-buried casing structure for concrete modular integrated building according to any one of claims 1 to 3, characterized in that: The thickness of the lower module top plate (1) is 55 mm; the thickness of the cast-in-place structural plate (2) is 75 mm; the thickness of the mortar layer (6) is 20 mm; and the length of the embedded casing (3) is 160 mm.

8. The top plate pre-buried casing structure used in concrete modular integrated buildings according to claim 4, characterized in that: The bottom pipe body (32) is made of a hot-dip galvanized steel pipe.

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