CN106013566A - Assembled type bathroom floor slab and construction method - Google Patents

Assembled type bathroom floor slab and construction method Download PDF

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Publication number
CN106013566A
CN106013566A CN201610591745.9A CN201610591745A CN106013566A CN 106013566 A CN106013566 A CN 106013566A CN 201610591745 A CN201610591745 A CN 201610591745A CN 106013566 A CN106013566 A CN 106013566A
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CN
China
Prior art keywords
floor
layer
floor drain
surface layer
drain
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Pending
Application number
CN201610591745.9A
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Chinese (zh)
Inventor
吴明亮
黄卫苹
张菁
孙淳玲
Original Assignee
孙续畅
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 孙续畅 filed Critical 孙续畅
Priority to CN201610591745.9A priority Critical patent/CN106013566A/en
Publication of CN106013566A publication Critical patent/CN106013566A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0407Floor drains for indoor use
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/041Accessories therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ

Abstract

The invention discloses an assembled type bathroom floor slab and a construction method. The assembled type bathroom floor slab is provided with an internally-arranged drainage system which comprises a vertical drainage pipe connector, a floor drain and a floor drain transverse drainage pipe; a drainage port of the floor drain is connected with the vertical drainage pipe connector through the floor drain transverse drainage pipe, and the bathroom floor slab is sequentially provided with a surface layer, a surface layer bonding layer, a waterproof layer and a structure layer from top to bottom. By adopting the scheme, the structure is reasonable, the cost is low, and an assembled type prefabricated bathroom can be manufactured on site or in advance; a reverse construction mode can be adopted, mechanized line production is achieved in construction, the technical requirements on constructors are low, and through simple treatment, the surface layer and the waterproof layer can achieve the very good effect; combined operation of a male formwork and an outer formwork is adopted, and therefore the construction speed and the construction quality are high; same-floor drainage is adopted, and therefore the advantages that construction is convenient, use is sanitary, the housing property is clear, little disturbance among floors is generated, and drainage noise is low are achieved.

Description

A kind of assembled bathroom floor and construction method
Technical field:
The invention belongs to assembled toilet technical field, be specifically related to a kind of assembled bathroom floor and execute Work method.
Background technology:
Assembled toilet refer to the base plate of prefabrication, wallboard, top board and pipeline, sanitary equipment etc. at the scene by The design of factory, the integral vacuum toilet being assembled.Along with the development of society, assembled-type house is the slowest Slowly the main flow of dwelling construction is become.Toilet is as the requisite part of assembled-type house, it is possible to pass through Entirety makes in advance, the most again in-site installation.But the integral prefabricated boxlike assembling of present stage whether factory is defended Between life, or the toilet of site operation, it is all to use first casting concrete floor, then installs or construct To complete the construction of accomodation ground.After toilet completes ground construction, or at the integral prefabricated anti-bottom of factory Dish, on-the-spot overall built on stilts local support is installed;Or levelling protective layer, the waterproof layer of mating formation successively of constructing at the scene And surface layer.There is problems of between conventional sanitation, the form of construction work mated formation successively is for the skill of workmen Art requires higher, and surface layer is difficult to mat formation smooth, waterproof layer difficult treatment.Owing to toilet arranges floor drain, The room gradient needs to meet drainage requirement, the construction level that this kind of gradient construction requirement is higher, and speed of constructing Degree is slow.It addition, the branch drain that present toilet typically uses interlayer draining, i.e. upper strata passes floor, Downstairs one layer of top is connected to the pipeline of soil stack, and this makes the property right integrity of privately owned house lack boundary Fixed, drainage system passes floor, also leaves hidden leakage defect, and may spread disease.Factory is overall pre- What boxlike processed assembling toilet existed problem is that waterproof domain is necessarily mounted on casting concrete floor, Relying on scene to adjust clamped support point to support, prefabricated integral waterproofing chassis is built on stilts mounting means, and this causes as follows Problem: one is that comfort is inadequate;Two is to need setting height(from bottom) 7-15cm, in order to ensure and building ground Flushing, toilet building ground needs to drop plate and processes, and the space requirement of fall plate does waterproof, has concurrently formed water Basin;Three is that boxlike toilet itself is not provided with soil stack, and soil stack is traditional structure, and it connects Reliability be restricted;Four is to have the horizontally-arranged pipe of bathroom and scene below the integral waterproofing domain of boxlike toilet With the connection of construction drainage pipe, connection reliability is the highest, and anthropic factor impact is big, have seepage to be difficult to find and Safeguard.
Summary of the invention:
The present invention is directed to the deficiencies in the prior art, it is provided that a kind of assembled bathroom floor and construction method, Rational in infrastructure, cost is low, it is achieved that bathroom floor is integral prefabricated, and work progress is simple, to workmen Technical merit requires low, and speed of application is fast, uses co-layer draining, solves problems of the prior art.
The present invention solves that above-mentioned technical problem be the technical scheme is that
A kind of assembled bathroom floor, is provided with built-in drainage system, including soil stack connection, floor drain, The horizontally-arranged pipe of floor drain;The discharge outlet of floor drain is connected with soil stack by the horizontally-arranged pipe of floor drain and is connected, bathroom floor From top to bottom set gradually surface layer, surface layer adhesive layer, waterproof layer and structure sheaf.
Preferably, described floor drain includes floor drain shell and drain cover, is provided with sealing station on the top of floor drain shell, The bell jar being connected with drain cover is connected by sealing ring sealing with upper sealing station, is provided with in the bottom of floor drain shell One water storage bowl, the horizontally-arranged pipe of floor drain is connected with the drainage interface being arranged on floor drain shell-side face.
Preferably, described floor drain shell, the horizontally-arranged pipe of floor drain and drainage interface are located at the height sky of bathroom floor In, waterproof layer ploughs under in the upper edge of floor drain shell;The straight tube of described drain cover inserts the floor drain being surrounded by waterproof layer Along interior on shell;Outside and drain cover the bottom surface of drain cover straight tube is provided with surface layer adhesive layer, is connected in the middle part of drain cover One connecting rod, is provided with screw thread outside connecting rod, bell jar is connected by nut with connecting rod.
Preferably, described waterproof layer lower plane arrives to the distance of surface layer lower plane less than 8mm, structure sheaf lower plane The distance of surface layer lower plane is less than 140mm.
Preferably, described soil stack is formed around the sealing platform that local is raised, and sealing platform is the most successively Being provided with surface layer, surface layer adhesive layer, waterproof layer and structure sheaf, the structure sheaf of sealing platform is linked to be with floor construction layer Integrally, soil stack connection periphery is provided with the sealing platform that local is the most raised.
Preferably, the outside of described integral prefabricated bathroom floor surrounding sealing platform is provided with and closes on room floors Structure sheaf.
Preferably, bottom integral prefabricated bathroom floor, installation built-in fitting it is provided with and for structure connection Stretch out reinforcing bar.
Preferably, built-in fitting and the anchoring piece of installation wallboard it is provided with at sealing platform top.
The construction method of a kind of assembled bathroom floor, comprises the steps:
The first step, makes punch, makes punch according to toilet layout requirements;
Second step, lays protecting film, lays protecting film at convex mould surface;
3rd step, puts surface layer, drain cover and soil stack and connects, and furnishes surface layer, drain cover at punch Above, upward, surface layer and drain cover front are adjacent to protecting film surface layer and the drain cover back side;
4th step, is coated with float coat adhesive layer, is coated with float coat binding, shape at the surface layer back side and the drain cover back side Become surface layer adhesive layer;
5th step, places floor drain shell, soil stack connection, arranges floor drain shell, soil stack according to position, Waterproof layer is deployed in floor drain shell, installs the horizontally-arranged pipe of floor drain, is connected with soil stack by floor drain shell and is connected;
6th step, arranges waterproof layer, is arranged above with waterproof layer at surface layer tack coat, and waterproof layer is wanted according to technique Ask setting;
7th step, lays levelling protective layer at waterproof layer outer surface;
8th step, laying structure layer reinforcing bar, laying structure reinforcing bar at ground and sealing platform, external mold is set;
9th step, pouring structure layer, pouring structure layer at sealing platform and on levelling protective layer;
Tenth step, maintains structure sheaf;
11st step, removes external mold;
12nd step, entirety is stood up, and proposes punch vertically upward;
13rd step, carries out visual examination, then carries out closed-water test integral prefabricated bathroom floor.
Preferably, described toilet layout includes toilet size, floor drain position, soil stack position, door Position, the position of window and sealing platform position, described surface layer is mosaic, stone material, wall brick and skirt.
The present invention uses such scheme, rational in infrastructure, and cost is low, prefabricated toilet can on-the-spot or Make in advance, reverse form of construction work, construction can be used to realize mechanized continuous productive process, to workmen's skill Art is less demanding, just can be reached extraordinary effect by simple process, surface layer and waterproof layer;Use punch With the joint operation of external mold, speed of application is very fast and construction quality is good;Use co-layer draining, co-layer draining Easy construction, use health, House Property is distinct, floor disturbs less up and down, draining noise is little.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention.
In figure, 1, surface layer, 2, drain cover, 3, surface layer adhesive layer, 4, waterproof layer, 5, floor drain shell, 6, Levelling protective layer, 7, structure sheaf, 8, bell jar, 9, the horizontally-arranged pipe of floor drain, 10, soil stack connect, 11, Sealing platform, 12, floor drain comb, 13, upper sealing station, 15, water storage bowl, 16, drainage interface, 17, connect Bar.
Detailed description of the invention:
For the technical characterstic of this programme can be clearly described, below by detailed description of the invention, and combine its accompanying drawing, The present invention will be described in detail.
As it is shown in figure 1, the present invention solves that above-mentioned technical problem be the technical scheme is that
A kind of assembled bathroom floor, is provided with built-in drainage system, connect 10 including soil stack, floor drain, The horizontally-arranged pipe of floor drain 9;The discharge outlet of floor drain is connected 10 by the horizontally-arranged pipe of floor drain 9 with soil stack and is connected, health Between floor from top to bottom set gradually surface layer 1, surface layer adhesive layer 3, waterproof layer 4 and structure sheaf 7.In structure On layer 7, levelling protective layer 6 can be set, levelling when structure sheaf 7 surface irregularity.
Described floor drain includes floor drain shell 5 and drain cover 3, is provided with sealing station 13 on the top of floor drain shell 5, The bell jar 8 being connected with drain cover 3 and upper sealing station 13 are sealed by sealing ring and are connected, on floor drain shell 5 times Portion is provided with a water storage bowl 15, and the horizontally-arranged pipe of floor drain 9 is connected with the drainage interface 16 being arranged on floor drain shell 5 side.
Described floor drain shell 5, the horizontally-arranged pipe of floor drain 9 and drainage interface 16 are located at the height space of bathroom floor In, waterproof layer 4 ploughs under in the upper edge of floor drain shell 5;The straight tube of described drain cover 2 is inserted and is surrounded by waterproof layer 4 Floor drain shell 5 on along the inside;Outside and drain cover 2 the bottom surface of drain cover 2 straight tube is provided with surface layer adhesive layer 3, Be connected in the middle part of drain cover 2 connecting rod 17, the outside screw thread that is provided with of connecting rod 17, bell jar 8 and connecting rod 17 It is connected by nut.Owing to waterproof layer 4 ploughs under in floor drain shell 5, waterproof effect is more preferable, and easy construction, Floor drain shell 5 surrounding and whole water-proof chassis are not susceptible to water, eliminate traditional method and form the hidden danger of basin. Floor drain comb 12 can be set on drain cover 2, facilitate the dismounting within floor drain and maintenance.
Described waterproof layer 4 lower plane is less than 8mm, structure sheaf 7 lower plane to face to the distance of surface layer 1 lower plane The distance of layer 1 lower plane is less than 140mm.This bathroom floor can use reversely construction, therefore can accomplish ground Each functional layer is relatively thin, but waterproof effect is the best.So can reduce investment and accelerate speed of application.
Described soil stack is formed around the sealing platform 11 that local is raised, and sealing platform 11 is sequentially provided with from outside to inside Surface layer 1, surface layer adhesive layer 3, waterproof layer 4, structure sheaf 7, the structure sheaf 7 of sealing platform 11 and floor construction Layer is connected, and soil stack connects 10 peripheries and is provided with the sealing platform 11 that local is raised.It is provided with sealing platform 11 Can effectively prevent soil stack from seeping water with the contact position of floor.Sealing platform also according to toilet building The basically identical structure of plate is designed construction, and speed of application is fast, and quality is guaranteed.Due to sealing playscript with stage directions body The gradient need not be considered, therefore levelling protective layer 6 can not be set.
The outside of described integral prefabricated bathroom floor surrounding sealing platform 11 is provided with the structure closing on room floors Layer.This kind of structure is beneficial to the combination on ground between bathroom floor and surrounding non-hygiene, and this most integral prefabricated is defended The installation of floor between life.
Bottom integral prefabricated bathroom floor, it is provided with installation built-in fitting and stretches out steel for what structure connected Muscle.Built-in fitting and the anchoring piece installing wallboard it is provided with at sealing platform 11 top.This kind of structure is beneficial to toilet Ground and the connection of toilet metope between floor and surrounding non-hygiene, and the installation of the beneficially present invention.
The construction method of a kind of assembled bathroom floor, comprises the steps:
The first step, makes punch, makes punch according to toilet layout requirements;
Second step, lays protecting film, lays protecting film at convex mould surface;
3rd step, puts surface layer 1, drain cover 2 and soil stack and connects 10, surface layer 1, drain cover 2 are put Be located at above punch, surface layer 1 and drain cover 2 back side upward, surface layer 1 and drain cover 2 front and protecting film It is adjacent to;
4th step, is coated with float coat adhesive layer 3, is coated with float coat binding at surface layer 1 back side and drain cover 2 back side, Form surface layer adhesive layer 3;
5th step, place floor drain shell 5, soil stack connect 10, according to position arrange floor drain shell 5, draining stand Pipe 10, waterproof layer 4 is deployed in floor drain shell 5, installs the horizontally-arranged pipe of floor drain 9, is stood with draining by floor drain shell 5 Pipe connects 10 and is connected;
6th step, arranges waterproof layer 4, is arranged above with waterproof layer 4, waterproof layer 4 foundation at surface layer tack coat 3 Technological requirement is arranged;
7th step, lays levelling protective layer 6 at waterproof layer 4 outer surface;
8th step, laying structure layer reinforcing bar, laying structure reinforcing bar at ground and sealing platform, external mold is set;
9th step, pouring structure layer 7, pouring structure layer at sealing platform 11 and on levelling protective layer 6;
Tenth step, maintains structure sheaf 7;
11st step, removes external mold;
12nd step, entirety is stood up, and proposes punch vertically upward;
13rd step, carries out visual examination, then carries out closed-water test integral prefabricated bathroom floor.
Described toilet layout include toilet size, floor drain position, soil stack position, the position of door, The position of window and sealing platform position, described surface layer 1 is mosaic, stone material, wall brick and skirt.Toilet cloth Office and surface layer 1 can have covering scope more widely according to the needs of the design and use person of designer.
Above-mentioned detailed description of the invention cannot function as limiting the scope of the invention, for the art For technical staff, any alternate modification being made embodiment of the present invention or conversion all fall within the present invention Protection domain in.
The present invention does not describes part in detail, is the known technology of those skilled in the art of the present technique.

Claims (10)

1. an assembled bathroom floor, it is characterised in that: it is provided with built-in drainage system, stands including draining Pipe connection, floor drain, the horizontally-arranged pipe of floor drain;The discharge outlet of floor drain is connected phase by the horizontally-arranged pipe of floor drain with soil stack Even, bathroom floor from top to bottom sets gradually surface layer, surface layer adhesive layer, waterproof layer and structure sheaf.
A kind of assembled bathroom floor the most according to claim 1, it is characterised in that: described floor drain Including floor drain shell and drain cover, it is provided with sealing station on the top of floor drain shell, the bell jar being connected with drain cover It is connected by sealing ring sealing with upper sealing station, is provided with a water storage bowl in the bottom of floor drain shell, the horizontally-arranged pipe of floor drain It is connected with the drainage interface being arranged on floor drain shell-side face.
A kind of assembled bathroom floor the most according to claim 2, it is characterised in that: described floor drain The horizontally-arranged pipe of shell, floor drain and drainage interface are located in the height space of bathroom floor, and waterproof layer ploughs under floor drain In the upper edge of shell;The straight tube of described drain cover is inserted and is surrounded by the floor drain shell of waterproof layer along interior;Drain cover straight tube Outside and drain cover bottom surface is provided with surface layer adhesive layer, and be connected in the middle part of drain cover a connecting rod, outside connecting rod Being provided with screw thread, bell jar is connected by nut with connecting rod.
A kind of assembled bathroom floor the most according to claim 1, it is characterised in that: described waterproof Layer lower plane is less than to the distance of surface layer lower plane to the distance of surface layer lower plane less than 8mm, structure sheaf lower plane 140mm。
5. according to a kind of assembled bathroom floor described in claim 1 or 4, it is characterised in that: described Soil stack is formed around the sealing platform that local is raised, and sealing platform is sequentially provided with surface layer from outside to inside, surface layer glues Closing layer, waterproof layer and structure sheaf, the structure sheaf of sealing platform is connected with floor construction layer, and soil stack is even Connect periphery and be provided with the sealing platform that local is raised.
A kind of assembled bathroom floor the most according to claim 1, it is characterised in that: described entirety The outside of prefabricated toilet floor surrounding sealing platform is provided with the structure sheaf closing on room floors.
A kind of assembled bathroom floor the most according to claim 1, it is characterised in that: pre-in entirety It is provided with installation built-in fitting bottom bathroom floor processed and stretches out reinforcing bar for what structure connected.
A kind of assembled bathroom floor the most according to claim 5, it is characterised in that: at sealing platform Top is provided with built-in fitting and the anchoring piece installing wallboard.
9. the construction method of an assembled bathroom floor, it is characterised in that: comprise the steps:
The first step, makes punch, makes punch according to toilet layout requirements;
Second step, lays protecting film, lays protecting film at convex mould surface;
3rd step, puts surface layer, drain cover and soil stack and connects, and furnishes surface layer, drain cover at punch Above, upward, surface layer and drain cover front are adjacent to protecting film surface layer and the drain cover back side;
4th step, is coated with float coat adhesive layer, is coated with float coat binding, shape at the surface layer back side and the drain cover back side Become surface layer adhesive layer;
5th step, places floor drain shell, soil stack connection, arranges floor drain shell, soil stack according to position, Waterproof layer is deployed in floor drain shell, installs the horizontally-arranged pipe of floor drain, is connected with soil stack by floor drain shell and is connected;
6th step, arranges waterproof layer, is arranged above with waterproof layer at surface layer tack coat, and waterproof layer is wanted according to technique Ask setting;
7th step, lays levelling protective layer at waterproof layer outer surface;
8th step, laying structure layer reinforcing bar, laying structure reinforcing bar at ground and sealing platform, external mold is set;
9th step, pouring structure layer, pouring structure layer at sealing platform and on levelling protective layer;
Tenth step, maintains structure sheaf;
11st step, removes external mold;
12nd step, entirety is stood up, and proposes punch vertically upward;
13rd step, carries out visual examination, then carries out closed-water test integral prefabricated bathroom floor.
The construction method of a kind of assembled bathroom floor the most according to claim 9, its feature exists In: described toilet layout include toilet size, floor drain position, soil stack position, the position of door, The position of window and sealing platform position, described surface layer is mosaic, stone material, wall brick and skirt.
CN201610591745.9A 2016-07-25 2016-07-25 Assembled type bathroom floor slab and construction method Pending CN106013566A (en)

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CN201610591745.9A CN106013566A (en) 2016-07-25 2016-07-25 Assembled type bathroom floor slab and construction method

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Application Number Priority Date Filing Date Title
CN201610591745.9A CN106013566A (en) 2016-07-25 2016-07-25 Assembled type bathroom floor slab and construction method

Publications (1)

Publication Number Publication Date
CN106013566A true CN106013566A (en) 2016-10-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107100285A (en) * 2017-05-24 2017-08-29 中国十七冶集团有限公司 A kind of prefabricated toilet water seepage prevention construction method
CN111335414A (en) * 2020-03-03 2020-06-26 五冶集团上海有限公司 Drainage construction method for same-layer drainage pre-buried water collector

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201358494Y (en) * 2009-02-25 2009-12-09 滕荣谦 Leak-proof automatic drainage system for toilet
CN201428178Y (en) * 2009-06-05 2010-03-24 杨建良 Settlement water-saving toilet
CN201722797U (en) * 2010-06-11 2011-01-26 陕西省第八建筑工程公司 Bathroom floor drain waterproof node
CN202117156U (en) * 2011-06-17 2012-01-18 中建八局第二建设有限公司 Seepage prevention structure for floor drain of building
CN103031887A (en) * 2013-01-09 2013-04-10 东莞市彩丽建筑维护技术有限公司 Construction method and water guide system of house bathroom water guide system
CN202882098U (en) * 2012-09-27 2013-04-17 广西建工集团第三建筑工程有限责任公司 In-pit floor drain automatic drainage structure capable of preventing toilet from leaking
CN203878719U (en) * 2014-05-05 2014-10-15 中国建筑第八工程局有限公司 Floor drain seepage-proofing device for bathroom
CN203905159U (en) * 2014-06-24 2014-10-29 张菁 Water-sealed odor-proof decorative floor drain cover and water-sealed odor-proof decorative floor drain
CN204609007U (en) * 2015-05-06 2015-09-02 厦门防水博士建筑工程有限公司 The waterproofing system of a kind of kitchen structure
CN206091001U (en) * 2016-07-25 2017-04-12 孙续畅 Assembled bathroom floor

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201358494Y (en) * 2009-02-25 2009-12-09 滕荣谦 Leak-proof automatic drainage system for toilet
CN201428178Y (en) * 2009-06-05 2010-03-24 杨建良 Settlement water-saving toilet
CN201722797U (en) * 2010-06-11 2011-01-26 陕西省第八建筑工程公司 Bathroom floor drain waterproof node
CN202117156U (en) * 2011-06-17 2012-01-18 中建八局第二建设有限公司 Seepage prevention structure for floor drain of building
CN202882098U (en) * 2012-09-27 2013-04-17 广西建工集团第三建筑工程有限责任公司 In-pit floor drain automatic drainage structure capable of preventing toilet from leaking
CN103031887A (en) * 2013-01-09 2013-04-10 东莞市彩丽建筑维护技术有限公司 Construction method and water guide system of house bathroom water guide system
CN203878719U (en) * 2014-05-05 2014-10-15 中国建筑第八工程局有限公司 Floor drain seepage-proofing device for bathroom
CN203905159U (en) * 2014-06-24 2014-10-29 张菁 Water-sealed odor-proof decorative floor drain cover and water-sealed odor-proof decorative floor drain
CN204609007U (en) * 2015-05-06 2015-09-02 厦门防水博士建筑工程有限公司 The waterproofing system of a kind of kitchen structure
CN206091001U (en) * 2016-07-25 2017-04-12 孙续畅 Assembled bathroom floor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107100285A (en) * 2017-05-24 2017-08-29 中国十七冶集团有限公司 A kind of prefabricated toilet water seepage prevention construction method
CN111335414A (en) * 2020-03-03 2020-06-26 五冶集团上海有限公司 Drainage construction method for same-layer drainage pre-buried water collector

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Application publication date: 20161012