CN113026915A - Disposable embedded floor drain for drainage of constructional engineering and construction method - Google Patents
Disposable embedded floor drain for drainage of constructional engineering and construction method Download PDFInfo
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- CN113026915A CN113026915A CN202110388713.XA CN202110388713A CN113026915A CN 113026915 A CN113026915 A CN 113026915A CN 202110388713 A CN202110388713 A CN 202110388713A CN 113026915 A CN113026915 A CN 113026915A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0407—Floor drains for indoor use
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Abstract
The invention provides a one-time pre-buried floor drain for drainage of constructional engineering and a construction method, and relates to the technical field of construction equipment. This disposable pre-buried floor drain device of building engineering drainage, including first pipeline, the top movable mounting of first pipeline has leak protection mechanism, and the inside rotation of leak protection mechanism is connected with the impeller, and the inside rotation of impeller is connected with first even axle, and the top of first even axle is rotated and is connected with water absorption mechanism, and the middle part of first even axle is rotated and is connected with anti-blocking mechanism. According to the one-time pre-buried floor drain for drainage of the building engineering and the construction method, the first pipeline is matched with the floor drain core, so that the floor drain is easy to replace in the later period when being installed and constructed, the steps are simplified during construction, the construction of workers is facilitated, the labor intensity is reduced, the ceramic tile and the floor drain waterproof layer are high in protectiveness when being replaced, hairs and the like around the collecting shell are effectively cleaned, and the use is facilitated.
Description
Technical Field
The invention relates to the technical field of building equipment, in particular to a one-time pre-buried floor drain for drainage of constructional engineering and a construction method.
Background
The one-time pre-buried floor drain for drainage of constructional engineering and the construction method in the prior art have the following problems:
firstly, the floor drain in the prior art is installed along with the ceramic tiles in the early stage of decoration, is not easy to replace in the later stage, is easy to damage the ceramic tiles and the floor drain in a violent mode, and is extremely easy to damage a connected water falling pipeline;
second, prior art's floor drain device when preventing blockking up, can not carry out self-cleaning to the inside rubbish of filter screen, and the rubbish after preventing blockking up the processing still exists in the filter screen, and prior art's siphon floor drain device, the device is simple simultaneously, can not effectively clear up and collect the peripheral hair of casing etc. and inconvenient the use.
In order to solve the problems, the inventor provides a one-time pre-buried floor drain for drainage of constructional engineering and a construction method, the floor drain is matched with a floor drain core through a first pipeline, when installation and construction are carried out, replacement is easy to carry out in the later period, steps are simplified during construction, construction of workers is facilitated, labor intensity is reduced, high protectiveness is achieved on tiles and a floor drain waterproof layer during replacement, hairs and the like around a collecting shell are effectively cleaned, and the floor drain is convenient to use.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the one-time pre-buried floor drain for drainage of the building engineering and the construction method, which have the advantages of high practicability and high reliability and solve the problems of low practicability and low reliability.
(II) technical scheme
In order to achieve the purposes of high practicability and high reliability, the invention is realized by the following technical scheme:
the utility model provides a disposable pre-buried floor drain device of building engineering drainage, includes first pipeline, the top movable mounting of first pipeline has leak protection mechanism, the inside rotation of leak protection mechanism is connected with the impeller, the inside rotation of impeller is connected with first even axle, the top of first even axle is rotated and is connected with water absorption mechanism, the middle part of first even axle is rotated and is connected with anti-blocking mechanism.
Preferably, leak protection mechanism is including waterproof cover, water proof coating, pre-buried shell, floor drain core, the inside of waterproof cover is provided with water proof coating, water proof coating's inside sets up pre-buried shell, the inside swing joint of pre-buried shell has the floor drain core, consequently for pre-buried shell is convenient for install with first pipeline, effectively carries out waterproofly through water proof coating etc. through pre-buried shell, is convenient for change when the floor drain core damages.
Preferably, the waterproof coating is formed by polyurethane and sealant, and the first pipeline is in threaded connection with the embedded shell, so that the waterproof performance is improved through the polyurethane and the sealant.
Preferably, a support is arranged inside the floor drain core and is rotatably connected with the first connecting shaft, so that self-cleaning is facilitated when water is drained through the first connecting shaft.
Preferably, the mechanism of absorbing water is including first casing, the axle is even to the second, piston plate, the fixed pipe of first fixed pipe, second, hob, the inside of first casing rotates and is connected with the axle is even to the second, the outside meshing of the axle is even to the second has the piston plate, the first fixed pipe of bottom fixedly connected with of first casing, the fixed pipe of bottom fixedly connected with second of first casing, the inside of first casing rotates and is connected with the hob, consequently, through the mechanism of absorbing water, perfects siphon floor drain device's function, effectively clears up and collects the peripheral hair of casing etc. convenient to use.
Preferably, first even axle is connected with the rotation of second even axle, first casing and piston plate all with spring fixed connection, the one end and the torsional spring fixed connection of hob, the one end and the connecting wire fixed connection of torsional spring, the connecting wire rotates with the rotation wheel to be connected.
Preferably, prevent stifled mechanism including second casing, elastic component, cam, the inside fixedly connected with elastic component of second casing, the outside sliding connection of elastic component has the cam, consequently, through preventing stifled mechanism, to preventing that rubbish after the jam is handled advances broken handle, carries out more efficient anti-block to the filter screen and handles.
Preferably, the second is connected with the cam rotation, the inside rotation of first pipeline is connected with the check valve, the middle part meshing of first even axle has the second casing, the middle part meshing of first even axle has the connecting piece, connecting piece and push rod swing joint.
Preferably, the bottom end of the second shell is provided with a filter plate, the elastic piece is movably connected with the blade, and a through hole is formed in the second shell.
A construction method of a one-time pre-buried floor drain for drainage of constructional engineering comprises the following steps:
s1, setting the position of a reserved pipeline when constructing the reinforced concrete floor slab, reserving the actual position of a floor drain water supply and drainage pipeline, installing a first pipeline, pouring concrete, and setting a pre-buried tunnel, wherein the pre-buried first pipeline is slightly higher than the height of the concrete floor slab;
s2, installing a waterproof shell on the outer side of the first pipeline, enabling the uppermost position of the waterproof shell to be lower than the reinforced concrete structure layer, removing the pipe above the first pipeline by using a cutting tool, and polishing the cut to be smooth, so that the first pipeline is matched with the floor drain core, and the floor drain core is slightly lower than the plane;
s3, coating polyurethane to the inner wall of the inner side of the waterproof shell to a certain thickness, airing, installing the polyurethane into the embedded shell, filling waterproof sealant colloid between the embedded shell and the waterproof shell, filling joints, testing the waterproof protective layer to detect whether water leaks, and laying a floor after detection so that the floor has a certain gradient;
s4, mounting the upper end face of the floor drain core slightly lower than the upper surface of the leveling layer into a first connecting shaft;
and S5, assembling the water absorption mechanism and the first connecting shaft, and filling sealing glue between the floor drain and the surface layer.
(III) advantageous effects
Compared with the prior art, the invention provides a one-time pre-buried floor drain for drainage of constructional engineering and a construction method, and the one-time pre-buried floor drain has the following beneficial effects:
1. this building engineering drainage is once only pre-buried floor drain and construction method through first pipeline and floor drain core cooperation, when installing and being under construction, not only change easily when the later stage is changed, simplify the step when the construction moreover, the workman's of being convenient for is under construction, reduces intensity of labour, all has higher protectiveness to ceramic tile and floor drain waterproof layer when changing, and when changing, through threaded connection, the operation of being convenient for carries out effective maintenance to the pipeline of falling into water of connection simultaneously.
2. According to the one-time pre-buried floor drain for drainage of the building engineering and the construction method, the anti-blocking mechanism is used for crushing the garbage subjected to anti-blocking treatment, the filter screen is subjected to more efficient anti-blocking treatment, the purpose of self-cleaning is achieved, the functionality of the siphon floor drain device is improved, hairs and the like around the collecting shell are effectively cleaned, and the use is facilitated.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of the structure of the water absorption mechanism of the present invention;
fig. 4 is a schematic structural diagram of the impeller of the present invention.
In the figure: 1. a first conduit; 2. a leakage prevention mechanism; 21. a waterproof shell; 22. waterproof paint; 23. pre-embedding a shell; 24. a floor drain core; 3. an impeller; 4. a first coupling shaft; 5. a water absorbing mechanism; 51. a first housing; 52. a second coupling shaft; 53. a piston plate; 54. a first stationary tube; 55. a second stationary tube; 6. an anti-blocking mechanism; 61. a second housing; 62. an elastic member; 63. a cam.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention is further described below by way of examples:
the first embodiment is as follows:
referring to fig. 1-4, a disposable pre-buried floor drain device for drainage of construction engineering comprises a first pipeline 1, a leakage prevention mechanism 2 is movably installed at the top end of the first pipeline 1, an impeller 3 is rotatably connected inside the leakage prevention mechanism 2, a first connecting shaft 4 is rotatably connected inside the impeller 3, a water absorption mechanism 5 is rotatably connected at the top end of the first connecting shaft 4, an anti-blocking mechanism 6 is rotatably connected at the middle part of the first connecting shaft 4, the leakage prevention mechanism 2 comprises a waterproof shell 21, a waterproof coating 22, a pre-buried shell 23 and a floor drain core 24, the waterproof coating 22 is arranged inside the waterproof shell 21, the pre-buried shell 23 is arranged inside the waterproof coating 22, the floor drain core 24 is movably connected inside the pre-buried shell 23, therefore, make pre-buried shell 23 and first pipeline 1 be convenient for install, effectively waterproof through water proof coating 22 etc. through pre-buried shell 23, be convenient for change when the floor drain core 24 damages.
Example two:
referring to fig. 1-4, a disposable pre-buried floor drain device for drainage in building engineering comprises a first pipe 1, a leakage prevention mechanism 2 is movably installed at the top end of the first pipe 1, an impeller 3 is rotatably connected inside the leakage prevention mechanism 2, a first connecting shaft 4 is rotatably connected inside the impeller 3, a water absorption mechanism 5 is rotatably connected at the top end of the first connecting shaft 4, an anti-blocking mechanism 6 is rotatably connected at the middle part of the first connecting shaft 4, the water absorption mechanism 5 comprises a first shell 51, a second connecting shaft 52, a piston plate 53, a first fixing pipe 54, a second fixing pipe 55 and a screw rod 56, the second connecting shaft 52 is rotatably connected inside the first shell 51, the piston plate 53 is engaged outside the second connecting shaft 52, the first fixing pipe 54 is fixedly connected at the bottom end of the first shell 51, the second fixing pipe 55 is fixedly connected at the bottom end of the first shell 51, the screw rod 56 is rotatably connected inside the first shell 51, therefore, through water absorption mechanism 5, perfect siphon floor drain device's function, effectively clear up and collect the peripheral hair of casing etc. convenient to use.
Example three:
referring to fig. 1-4, a disposable pre-buried floor drain device for drainage of building engineering comprises a first pipeline 1, a leakage prevention mechanism 2 is movably mounted at the top end of the first pipeline 1, an impeller 3 is rotatably connected inside the leakage prevention mechanism 2, a first connecting shaft 4 is rotatably connected inside the impeller 3, a water suction mechanism 5 is rotatably connected at the top end of the first connecting shaft 4, an anti-blocking mechanism 6 is rotatably connected in the middle of the first connecting shaft 4, the anti-blocking mechanism 6 comprises a second shell 61, an elastic piece 62 and a cam 63, the elastic piece 62 is fixedly connected inside the second shell 61, and the cam 63 is slidably connected outside the elastic piece 62, so that garbage after anti-blocking treatment is broken through the anti-blocking mechanism 6, and more efficient anti-blocking treatment is performed on a filter screen.
Example four:
referring to fig. 1-4, a disposable pre-buried floor drain device for drainage of construction engineering comprises a first pipeline 1, a leakage prevention mechanism 2 is movably installed at the top end of the first pipeline 1, an impeller 3 is rotatably connected inside the leakage prevention mechanism 2, a first connecting shaft 4 is rotatably connected inside the impeller 3, a water absorption mechanism 5 is rotatably connected at the top end of the first connecting shaft 4, an anti-blocking mechanism 6 is rotatably connected at the middle part of the first connecting shaft 4, the leakage prevention mechanism 2 comprises a waterproof shell 21, waterproof paint 22, a pre-buried shell 23 and a floor drain core 24, the waterproof shell 21 is internally provided with the waterproof paint 22, the pre-buried shell 23 is internally provided with the waterproof paint 22, the floor drain core 24 is movably connected inside the pre-buried shell 23, therefore, the pre-buried shell 23 and the first pipeline 1 are convenient to install, water is effectively prevented through the waterproof paint 22 and the like, the replacement is convenient through the pre-buried shell 23 when the floor, the waterproof coating 22 is made of polyurethane and sealant, the first pipeline 1 is in threaded connection with the embedded shell 23, therefore, the waterproof performance is improved through the polyurethane and the sealant, the inside of the floor drain core 24 is provided with a support, the support is in rotary connection with the first connecting shaft 4, therefore, self-cleaning is facilitated through the first connecting shaft 4 when water is drained, the water absorbing mechanism 5 comprises a first shell 51, a second connecting shaft 52, a piston plate 53, a first fixing pipe 54, a second fixing pipe 55 and a screw rod 56, the inside of the first shell 51 is in rotary connection with the second connecting shaft 52, the outer side of the second connecting shaft 52 is meshed with the piston plate 53, the bottom end of the first shell 51 is fixedly connected with a first fixing pipe 54, the bottom end of the first shell 51 is fixedly connected with a second fixing pipe 55, the inside of the first shell 51 is in rotary connection with the screw rod 56, therefore, the function of the floor drain siphon device is perfected through the water absorbing mechanism 5, the hair and the like around the collecting shell can be effectively cleaned, the use is convenient, the first connecting shaft 4 is rotatably connected with the second connecting shaft 52, the first shell 51 and the piston plate 53 are fixedly connected with the spring, the anti-blocking mechanism 6 comprises a second shell 61, an elastic part 62 and a cam 63, the elastic part 62 is fixedly connected inside the second shell 61, the cam 63 is slidably connected outside the elastic part 62, therefore, through the anti-blocking mechanism 6, to the rubbish that prevents after the jam and handle and advance broken handle, carry out more efficient anti-clogging to the filter screen and handle, second even axle 52 rotates with cam 63 to be connected, the inside of first pipeline 1 rotates and is connected with the check valve, the middle part meshing of first axis 4 has second casing 61, the middle part meshing of first axis 4 has the connecting piece, connecting piece and push rod swing joint, the bottom of second casing 61 is provided with the filter plate, elastic component 62 and blade swing joint, the inside of second casing 61 is provided with the through-hole.
A construction method of a one-time pre-buried floor drain for drainage of constructional engineering comprises the following steps:
s1, setting the position of a reserved pipeline when constructing a reinforced concrete floor slab, reserving the actual position of a floor drain water supply and drainage pipeline, installing a first pipeline 1, pouring concrete, and setting a pre-embedded gallery, wherein the pre-embedded first pipeline 1 is slightly higher than the height of the concrete floor slab;
s2, installing the waterproof shell 21 on the outer side of the first pipeline 1, enabling the uppermost position of the waterproof shell 21 to be lower than the reinforced concrete structure layer, removing a pipe above the first pipeline 1 by using a cutting tool, and polishing a cut smoothly to enable the first pipeline 1 to be matched with the floor drain core 24 and enable the floor drain core 24 to be slightly lower than a plane;
s3, coating polyurethane to the inner wall of the inner side of the waterproof shell 21 to a certain thickness, airing, installing the polyurethane into the embedded shell 23, filling waterproof sealant colloid between the embedded shell 23 and the waterproof shell 21, filling joints, testing a waterproof protective layer to detect whether water leaks, and laying a floor after detection so that the floor has a certain gradient;
s4, mounting the upper end face of the floor drain core 24 into the first connecting shaft 4, wherein the upper end face of the floor drain core is slightly lower than the upper surface of the leveling layer;
s5, assembling the water absorption mechanism 5 and the first connecting shaft 4, and filling sealant between the floor drain and the surface layer.
When the anti-leakage device is used, the anti-leakage device is installed through the first pipeline 1 and the anti-leakage mechanism 2, water flows into the first shell 51, the impeller 3 rotates through potential energy, the impeller 3 drives the first connecting shaft 4 to rotate, the first connecting shaft 4 drives the second connecting shaft 52 to rotate through the clamping at the top end, the second connecting shaft 52 is meshed with the piston plate 53, the piston plate 53 moves downwards to extrude lower air, the rotating wheel rotates, the spiral rod 56 rotates under the condition that the connecting wire at one end pulls the torsion spring to rotate, the air is extruded by the piston plate 53 to enter the anti-leakage mechanism 2, water flow garbage and the like are discharged more easily, the piston plate 53 recovers the original position through the elasticity of the spring, the torsion spring in the second connecting shaft 52 rotates, the piston plate 53 moves upwards, negative pressure is generated in the inner part, and the connecting pipe at the lower side can easily absorb hairs and the like, rotate through hob 56 and collect, the clearance of being convenient for, through the negative pressure, make the fixed pipe 55 of second of both sides produce the negative pressure, produce the siphon, the drainage of being convenient for, rotate through second even axle 52, make cam 63 rotate, extrude elastic component 62, make the inside air escape of elastic component 62, make the inside of second casing 61 produce the negative pressure, rotate through cam 63 and smash, inhale through the inside negative pressure of elastic component 62, discharge once more, the great bulky rubbish in the outside passes through the blade and cuts, the drainage of being convenient for, through first pipeline 1 and pre-buried shell 23 threaded connection, make pre-buried shell 23 be convenient for to be dismantled.
To sum up, the one-time pre-buried floor drain for drainage of the building engineering and the construction method have the advantages that the first pipeline 1 is matched with the floor drain core 24, so that the floor drain is easy to replace in the later period when being installed and constructed, the steps are simplified during construction, the construction of workers is facilitated, the labor intensity is reduced, the ceramic tile and the floor drain waterproof layer are high in protection when being replaced, meanwhile, the operation is facilitated through threaded connection when being replaced, and the connected water falling pipeline is effectively maintained.
According to the one-time pre-buried floor drain for drainage of the building engineering and the construction method, the anti-blocking mechanism 6 is used for crushing the garbage subjected to anti-blocking treatment, the filter screen is subjected to more efficient anti-blocking treatment, the purpose of self-cleaning is achieved, the functionality of the siphon floor drain device is improved, hairs and the like around the collecting shell are effectively cleaned, and the use is facilitated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a disposable pre-buried floor drain device of building engineering drainage, includes first pipeline (1), its characterized in that: the top movable mounting of first pipeline (1) has leak protection mechanism (2), the internal rotation of leak protection mechanism (2) is connected with impeller (3), the internal rotation of impeller (3) is connected with first even axle (4), the top of first even axle (4) is rotated and is connected with water absorption mechanism (5), the middle part of first even axle (4) is rotated and is connected with anti-blocking mechanism (6).
2. The disposable pre-buried floor drain device of building engineering drainage of claim 1, characterized in that: leak protection mechanism (2) is including waterproof cover (21), waterproof paint (22), pre-buried shell (23), floor drain core (24), the inside of waterproof cover (21) is provided with waterproof paint (22), the inside of waterproof paint (22) sets up pre-buried shell (23), the inside swing joint of pre-buried shell (23) has floor drain core (24).
3. The disposable pre-buried floor drain device for drainage of constructional engineering according to claim 1 or 2, characterized in that: the waterproof coating (22) is polyurethane and sealant, and the first pipeline (1) is in threaded connection with the embedded shell (23).
4. The disposable pre-buried floor drain device for drainage of constructional engineering according to claim 1 or 2, characterized in that: the inside of floor drain core (24) is provided with the support, the support rotates with first even axle (4) and is connected.
5. The disposable pre-buried floor drain device of building engineering drainage of claim 1, characterized in that: water absorption mechanism (5) are including first casing (51), the even axle of second (52), piston plate (53), first fixed pipe (54), the fixed pipe of second (55), hob (56), the inside rotation of first casing (51) is connected with the even axle of second (52), the outside meshing of the even axle of second (52) has piston plate (53), the first fixed pipe of bottom fixedly connected with (54) of first casing (51), the fixed pipe of bottom fixedly connected with second (55) of first casing (51), the inside rotation of first casing (51) is connected with hob (56).
6. The disposable pre-buried floor drain device for drainage of constructional engineering according to claim 1 or 5, characterized in that: first even axle (4) is rotated with second even axle (52) and is connected, first casing (51) and piston plate (53) all with spring fixed connection, the one end and the torsional spring fixed connection of hob (56), the one end and the connecting wire fixed connection of torsional spring, the connecting wire rotates with the rotation wheel to be connected.
7. The disposable pre-buried floor drain device of building engineering drainage of claim 1, characterized in that: the anti-blocking mechanism (6) comprises a second shell (61), an elastic piece (62) and a cam (63), wherein the elastic piece (62) is fixedly connected to the inner part of the second shell (61), and the cam (63) is connected to the outer side of the elastic piece (62) in a sliding mode.
8. The disposable pre-buried floor drain device for drainage of constructional engineering according to claim 1, 5 or 7, characterized in that: the second is connected axle (52) and cam (63) rotation, the inside rotation of first pipeline (1) is connected with the check valve, the middle part meshing of first even axle (4) has second casing (61), the middle part meshing of first even axle (4) has the connecting piece, connecting piece and push rod swing joint.
9. The disposable pre-buried floor drain device for drainage of constructional engineering according to claim 1, 5 or 7, characterized in that: the bottom end of the second shell (61) is provided with a filter plate, the elastic piece (62) is movably connected with the blade, and a through hole is formed in the second shell (61).
10. The construction method of the one-time embedded floor drain for drainage of the constructional engineering as claimed in claim 1, comprising the following steps, and characterized in that:
s1, setting the position of a reserved pipeline when a reinforced concrete floor slab is constructed, reserving the actual position of a floor drain water supply and drainage pipeline, installing a first pipeline (1), pouring concrete, and setting a pre-embedded gallery, wherein the pre-embedded first pipeline (1) is slightly higher than the height of the concrete floor slab;
s2, installing a waterproof shell (21) on the outer side of the first pipeline (1), enabling the uppermost position of the waterproof shell (21) to be lower than the reinforced concrete structure layer, removing a pipe above the first pipeline (1) by using a cutting tool, and polishing a cut to be smooth, so that the first pipeline (1) is matched with the floor drain core (24), and the floor drain core (24) is slightly lower than a plane;
s3, coating polyurethane to the inner wall of the inner side of the waterproof shell (21) to a certain thickness, airing, installing the polyurethane into the embedded shell (23), filling waterproof sealant colloid between the embedded shell (23) and the waterproof shell (21), filling joints, testing a waterproof protective layer, detecting whether water leakage exists, and laying a floor after detection so that the floor has a certain gradient;
s4, mounting the upper end face of the floor drain core (24) into the first connecting shaft (4) slightly lower than the upper surface of the leveling layer;
s5, assembling the water absorption mechanism (5) and the first connecting shaft (4), and filling sealing glue between the floor drain and the surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110388713.XA CN113026915B (en) | 2021-04-12 | 2021-04-12 | Disposable embedded floor drain for drainage of constructional engineering and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110388713.XA CN113026915B (en) | 2021-04-12 | 2021-04-12 | Disposable embedded floor drain for drainage of constructional engineering and construction method |
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| CN113026915A true CN113026915A (en) | 2021-06-25 |
| CN113026915B CN113026915B (en) | 2022-07-22 |
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2021
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| JP2003082724A (en) * | 2001-09-05 | 2003-03-19 | Dmw Corp | Sewage force feed device |
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| CN113026915B (en) | 2022-07-22 |
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