CN112962752A

CN112962752A - Local board drainage system that falls

Info

Publication number: CN112962752A
Application number: CN202110167492.3A
Authority: CN
Inventors: 郑术友; 林云青; 郑光铧; 杨明龙; 何谦; 罗强
Original assignee: Kangtai Plastic Science and Technology Group Co Ltd
Current assignee: Kangtai Plastic Science and Technology Group Co Ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-06-15

Abstract

The invention discloses a local plate lowering and drainage system which comprises a drainage pipe assembly, a wastewater connecting pipe, a concentrated water seal assembly, a horizontal pipe drainage assembly and an upper layer main drainage pipeline, wherein the wastewater connecting pipe is communicated with the drainage pipe assembly and is obliquely arranged; according to the local plate lowering and drainage system, the centralized water seal assembly is arranged, so that the space occupied by the drainage pipe fitting on the floor is reduced, and the floor height of a building is slightly and locally reduced, so that the condition of drainage on the same floor can be met; the floor is suitable for various installation scenes, occupies small floor space and has strong practicability.

Description

Local board drainage system that falls

Technical Field

The invention relates to the technical field of building drainage, in particular to a local plate lowering drainage system.

Background

The same-floor drainage system in the building at present comprises the following two modes:

the first one is interlayer drainage, installs the drainage branch pipe in the underfloor on this layer, the drainage mode under the roof of next floor promptly, but adopts the mode of interlayer drainage, and the existence occupies that the space of lower floor is serious, the noise is big during the drainage, the pipeline overhauls the difficulty and the pipeline if take place the seepage can produce great influence scheduling problem to the resident family of lower floor.

The second is for falling board-like same floor drainage, all branch pipes of draining off water all lay in the underground, because thickness is not enough, concrete floor just reduces the take the altitude downwards, form and fall the board groove, although the problem that interlayer drainage seepage influences the resident family of lower floor has been solved, but need reduce the height of floor in pipeline erection department, among the prior art, the height of floor has roughly reduced 40CM, lead to encroaching the space of the resident family of lower floor in a large number, and fall the board inslot and easily take place ponding phenomenon, the pipeline overhauls very difficult, inconvenient construction scheduling problem.

In addition, among the prior art, every indoor drainage pipe fitting all is connected with the trap alone, consequently when any trap inefficacy indoor, will lead to the foul smell to return indoor scheduling problem of spilling over.

Disclosure of Invention

In order to solve the above problems, the present invention provides a local floor drain system, comprising a drain pipe assembly, a wastewater connecting pipe which is communicated with the drain pipe assembly and is obliquely arranged, a centralized water seal assembly which is communicated with the wastewater connecting pipe, a horizontal pipe drain assembly which is communicated with the centralized water seal assembly, an upper layer total drain pipe which is connected with the upper end of the drain pipe assembly and a lower layer total drain pipe which is connected with the lower end of the drain pipe assembly, wherein the drain pipe assembly comprises a first water inlet pipe, a second water inlet pipe which is connected with the side wall of the first water inlet pipe and is internally communicated, a pipe joint which is arranged at the top end of the first water inlet pipe, a pipe cover which is movably connected with the pipe joint and has an eccentric structure, and a wastewater collector which connects the drain pipe assembly with the wastewater connecting pipe, wherein the wastewater collector comprises a third water inlet pipe and a fourth, and the fourth water inlet pipe, the wastewater connecting pipe and the drain pipe in the horizontal pipe drainage assembly are all round pipes.

Preferably, the included angle between the wastewater connecting pipe and the horizontal plane is 5-15 degrees.

Preferably, concentrate water seal subassembly includes the water seal subassembly, and embedded water seal core that is used for forming the water seal in the water seal subassembly and the reservation pipe fitting that sets up on the water seal subassembly and communicate with the water seal subassembly, wherein, the water seal subassembly is including depositing water spare and with deposit the drainage member that water spare links to each other and inside intercommunication.

Preferably, the number of reserving the pipe fitting is four groups, violently manage drainage assembly including respectively with four groups reserve the first drain pipe that the pipe fitting links to each other and inside intercommunication, second drain pipe, third drain pipe and fourth drain pipe.

Preferably, the tube cover comprises a movable tube capable of rotating 360 degrees around the axis of the movable tube and a wastewater connecting tube arranged above the movable tube, wherein the wastewater connecting tube and the movable tube are connected in an eccentric structure.

Preferably, the tube cover further comprises an eccentric tube and a guide tube; the bottom end of the eccentric pipe is connected with the movable pipe, and the top end of the eccentric pipe is connected with the bottom end of the connecting pipe; the honeycomb duct passes through the hollow part of the movable tube and is connected with the bottom end of the eccentric tube and communicated with the inside of the eccentric tube.

Preferably, the water seal core comprises an arc-shaped drainage surface, a semicircular water seal pipe connected with the drainage surface, and a sealing ring clamped on the edge of the water seal core.

Preferably, the water seal core divides the water storage part into a water inlet cavity, a water storage cavity and a water drainage cavity which are arranged in a U shape.

Preferably, the inner walls of the upper-layer main drainage pipeline and the lower-layer main drainage pipeline are provided with spiral guide ribs.

Preferably, the centralized water seal assembly further comprises a support member disposed above the water seal assembly, and a check valve and a floor drain cover mounted on the support member.

By adopting the technical scheme, the invention mainly has the following technical effects:

1. the waste water connecting pipe is obliquely arranged, so that the height difference exists between the waste water collector connected to the two ends of the waste water connecting pipe and the concentrated water seal assembly, when the local plate-lowering drainage system is installed, only the local plate-lowering area close to the drain pipe assembly is required, and the drain pipe assembly and the concentrated water seal assembly are installed in the plate-lowering area.

2. Through setting up the tube cap with tube connector swing joint for operating personnel can revise the position of connecting pipe according to upper strata main drainage pipe's position, just in time can dock with upper drainage pipe's position with the position of connecting pipe, and then makes the tube cap can dock with upper strata main drainage pipe, with the various installation scenes of adaptation, reinforcing practicality.

3. Through setting up concentrated water seal subassembly, utilize to deposit water spare and reserve the pipe fitting and make the waste water that the building inside produced such as shower district and washbasin to have catched in the water drainage spare in the lump, discharge through the connecting pipe again, concentrate the water seal through the sharing, avoid adopting a plurality of water drainage pipe fittings and trap, the construction is loaded down with trivial details, and water drainage pipe fittings occupies the big technical problem in big space.

4. The plate is locally lowered in the area close to the drain pipe assembly, the drain pipe assembly and the concentrated water seal assembly are installed in the area of the plate, same-layer drainage can be achieved, and indoor space can be effectively saved.

5. Compare traditional not falling board same floor drainage system, need not pre-buried pipe fitting in the floor, the drainage mode is safer.

Drawings

FIG. 1 is a schematic view of the overall structure of a partial downcomer drainage system of the present invention;

FIG. 2 is a schematic view of a partial plate-lowering drainage system (without upper and lower main drainage pipes) according to the present invention;

FIG. 3 is a schematic view of a main drainage pipeline in a local plate lowering drainage system according to the present invention;

FIG. 4 is a schematic structural view of an expansion joint in a local downcomer drainage system according to the present invention;

FIG. 5 is a schematic view of a drain assembly (without an expansion joint and a waste water collector) in a partial downcomer system of the present invention;

FIG. 6 is a schematic diagram of a drain assembly (without an expansion joint and a waste water collector) in a partial downcomer system according to the present invention;

FIG. 7 is a schematic structural diagram of a pipe cover in a partial downcomer drainage system according to the present invention;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

FIG. 9 is a schematic structural view of a wastewater collector in a partial downcomer system of the present invention;

FIG. 10 is a schematic structural view of a centralized water seal assembly in a local downcomer drainage system according to the present invention;

FIG. 11 is a schematic structural view of a water seal assembly and a water seal core in a partial downcomer drainage system of the present invention;

FIG. 12 is a cross-sectional view taken along line A-A of FIG. 11;

FIG. 13 is a schematic view of a connector of a partial downcomer drainage system of the present invention;

1. a drain pipe assembly; 11. a first water inlet pipe; 111. a first riser; 12. a second water inlet pipe; 13. a pipe interface; 14. a tube cover; 141. a connecting pipe; 142. an eccentric pipe; 143. a movable tube; 144. a flow guide pipe; 15. a horizontal pipe connector; 16. a tube wall cavity; 17. a baffle plate; 18. an expansion joint; 181. an upper cup body; 182. a lower cup body; 183. a seal ring; 184. a nut ring; 185. pressing a ring; 19. a wastewater collector; 191. a third water inlet pipe; 192. a fourth water inlet pipe;

2. a wastewater connecting pipe;

3. a centralized water seal assembly; 31. a water seal assembly; 311. a water storage member; 312. a drainage member; 3111. a water inlet cavity; 3112. a water storage cavity; 3113. a drainage cavity; 32. water sealing the core; 321. a drainage surface; 322. water sealing the pipe; 323. a seal ring; 33. reserving a pipe fitting; 34. a support member; 35. a check valve; 36. a floor drain cover; 37. prevent the adverse current board.

4. A horizontal pipe drainage assembly; 41. a first drain pipe; 42. a second drain pipe; 43. a third drain pipe; 44. a fourth drain pipe;

5. an upper layer of a main drainage pipeline; 51. a guide rib;

6. a lower-layer main drainage pipeline; 61. a connecting member; 611. and (7) installing holes.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification 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.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to 13, the present invention provides a local panel lowering drainage system, which is connected between upper and lower main drainage pipes and is respectively communicated with the upper and lower main drainage pipes when actually installed, and is used for discharging sewage and wastewater generated inside a building into a drainage pipe system, and includes a drainage pipe assembly 1, a wastewater connection pipe 2 communicated with the drainage pipe assembly 1, a centralized water seal assembly 3 communicated with the wastewater connection pipe 2, a horizontal pipe drainage assembly 4 communicated with the centralized water seal assembly 3, and an upper main drainage pipe 5 connected to an upper end of the drainage pipe assembly 1 and a lower main drainage pipe 6 connected to a lower end of the drainage pipe assembly 1, respectively. In the present invention, sewage refers to water discharged from a toilet, and waste water refers to water discharged from a shower stall, a washbasin, or the like.

The drain assembly 1 comprises a first inlet conduit 11, a second inlet conduit 12, a conduit interface 13 and a conduit cover 14. The second water inlet pipe 12 is connected with and internally communicated with the side wall of the first water inlet pipe 11, the connecting part of the first water inlet pipe 11 and the second water inlet pipe 12 is a pipe wall cavity 16 with a large volume, and the inner edge of the pipe wall cavity 16 is tangent to the inner edge of the first water inlet pipe 11 and the inner edge of the second water inlet pipe 12 respectively, so that sewage from the second water inlet pipe 12 can enter the first water inlet pipe 11 along the inner wall of the second water inlet pipe 12 to adhere to the wall in a swirling manner when entering the second water inlet pipe 12; the pipe joint 13 is connected with the top end of the first water inlet pipe 11 and is internally communicated with the first water inlet pipe 11 and is used for connecting the first water inlet pipe 11 with other drainage pipe fittings; one end of the pipe cover 14 is movably connected with the pipe interface 13, that is, the pipe cover 14 is movably connected with the first water inlet pipe 11 through the pipe interface 13 and is internally communicated. In this embodiment, the first water inlet pipe 11, the second water inlet pipe 12 and the pipe joint 13 are integrally formed, and the integrally formed structure can reduce the possibility of leakage of waste water or sewage from the drainage pipe, thereby improving the sealing performance in the drainage process of the drainage system.

The second water inlet pipe 12 can be communicated with a toilet drain outlet of a toilet and is used for receiving sewage from the toilet drain outlet and gathering the sewage into the first water inlet pipe 11, specifically, one end, far away from the first water inlet pipe 11, of the second water inlet pipe 12 is provided with a horizontal pipe connector 15, an operator can connect a horizontal sewage pipe (not shown in the figure) of the toilet drain outlet with the second water inlet pipe 12 of the drainage system through the horizontal pipe connector 15 and communicate the inside of the second water inlet pipe 12, and then the second water inlet pipe 12 is used for gathering the sewage from the toilet into the first water inlet pipe 11.

Further, for avoiding sewage to stop for a long time in violently managing interface 15 and the blowdown violently pipe, in this embodiment, violently manage interface 15 and set up for relative horizontal plane slope certain angle, through with violently managing interface 15 slope setting afterwards, make violently manage interface 15 and violently manage with the blowdown of slope and link to each other, and then make the sewage that gets into in the blowdown violently manage and violently manage interface 15 can get into second inlet tube 12 fast under the effect of self gravity, effectively avoid sewage to stop in drainage pipe fitting and block up drainage channel, improve the discharge rate of sewage. Preferably, in this embodiment, the included angle between the horizontal pipe joint 15 and the central axis of the first water inlet pipe 11 is 80-90 °.

Further, when sewage enters the first water inlet pipe 11 along the second water inlet pipe 12, the curvature radius of the sewage clinging to the pipe wall rotational flow can be increased due to the existence of the pipe wall cavity 16, when the sewage discharge capacity is large, the discharge rate of the sewage can be still effectively reduced, the sewage can be further ensured to be clinged to the pipe wall rotational flow to be discharged, the problems that the curvature radius of a connecting part pipeline is too small, when the sewage discharge capacity is large, the sewage is large in noise when the sewage is discharged from the pipeline through direct current, the service life of the pipeline is shortened and the like are solved. In addition, in this embodiment, pipe wall cavity 16 also inclines certain angle setting to make and to have certain contained angle between second inlet tube 12 and the first inlet tube 11, and then make the sewage that gets into in the second inlet tube 12 can get into first inlet tube 11 fast under the effect of self gravity, effectively avoid sewage to stop and block up drainage channel in the second inlet tube 12, thereby improve sewage discharge rate. Preferably, in this embodiment, the included angle of the central axis between the first inlet pipe 11 and the second inlet pipe 12 is 30-60 °.

Further, when sewage/wastewater in the upper drainage pipeline 5 enters the first water inlet pipe 11 in a swirling manner or when sewage enters the first water inlet pipe 11 in a swirling manner from the second water inlet pipe 12, the sewage can rush out the second water inlet pipe 12 along the junction of the first water inlet pipe 11 and the second water inlet pipe 12, so that sewage convection is caused, and the drainage efficiency is further influenced, in the embodiment, a baffle 17 is further arranged at the connecting position of the first water inlet pipe 11 and the second water inlet pipe 12. Through setting up baffle 17 after, not only can make the sewage in the second inlet tube 12 can get into first inlet tube 11 according to the direction of preset, can also block that the sewage in the first inlet tube 11 is reverse to get into in the second inlet tube 12, the drainage efficiency in the reinforcing drain pipe subassembly 1.

First inlet tube 11 is an upper end and expands, and the funnel-shaped structure that the lower extreme dwindles for when sewage adherence whirl on the inner wall of first inlet tube 11, its whirl radius is by big dwindling gradually, thereby has improved the discharge rate of sewage, has reduced the noise of drainage in-process simultaneously, further reduces the interference to resident's life.

Further, as shown in fig. 7 to 8, the pipe cover 14 includes a connecting pipe 141, an eccentric pipe 142, a movable pipe 143, and a flow guide pipe 144, wherein the connecting pipe 141 is a circular pipe for connecting the pipe cover 14 to an upper drainage pipe, and a bottom end of the connecting pipe 141 is connected to and internally communicated with a top end of the eccentric pipe 142 for receiving sewage from the upper drainage pipe; the bottom end of the eccentric pipe 142 is connected with the top end of the movable pipe 143 and the top end of the flow guide pipe 144. Specifically, the guide pipe 144 is connected to and internally communicated with the bottom end of the eccentric pipe 142 through the hollow portion of the movable pipe 143, for receiving the sewage passing through the eccentric pipe 142. In this embodiment, the connecting pipe 141, the eccentric pipe 142, the movable pipe 143, and the flow guide pipe 144 are also integrally formed, and the integrally formed structure can reduce the possibility of leakage of sewage/wastewater from the pipe cap 14, thereby improving the sealing performance of the pipe cap 14 during the drainage process, and the manufacturing process is also simpler.

The eccentric tube 142 is an eccentric truncated cone-shaped structure with a top opening smaller than a bottom opening, the top opening is connected with the connecting tube 141, the bottom opening is simultaneously connected with the movable tube 143 and the guide tube 144, and the end surface area of the connecting tube 141 is smaller than that of the movable tube 143.

The movable tube 143 is also a circular tube and is movably connected to the tube interface 13, and the movable tube 143 may be sleeved in the tube interface 13, or the tube interface 13 may be sleeved in the movable tube 143, and in this embodiment, preferably, the movable tube 143 is sleeved in a hollow portion of the tube interface 13, and the movable tube 143 can rotate 360 ° around its own axis with respect to the tube interface 13, so that the tube cover 14 can rotate 360 ° around its own axis. During the rotation of the tube cover 14, since the eccentric tube 142 is eccentric, the top opening of the eccentric tube 142 will displace along with the rotation of the tube cover 14, of course, the connecting tube 141 connected to the top opening of the eccentric tube 142 will also be displaced (i.e. the axis of the connecting tube 141 is parallel to but not coincident with the axis of the movable tube 143, and when the movable tube 143 rotates 360 ° around its own axis, the connecting tube 141 will also rotate around the axis of the movable tube 143), so that the operator can correct the position of the connection pipe 141 according to the position of the upper drainage pipe, the position of the connection pipe 141 can be just butted with the position of the upper drainage pipe, and then the pipe cover 14 is butted with a drainage pipe fitting on the upper layer to complete the installation of the drainage system in the building, so that the local plate lowering drainage system provided by the invention is suitable for various installation scenes.

In addition, the bottom of honeycomb duct 144 cup joints with first inlet tube 11, and then with the first inlet tube 11 of sewage direction in the upper drainage pipe fitting, for avoiding sewage to take place to leak, the bottom of honeycomb duct 144 should stretch into first inlet tube 11, and certain clearance has between the part that honeycomb duct 144 stretches into in first inlet tube 11 and the inner wall of first inlet tube 11 to when making the tube cap 14 rotatory, the part that honeycomb duct 144 stretches into in the first inlet tube 11 can rotate in the hollow portion of first inlet tube 11.

Further, in order to prevent the sewage in the flow guide pipe 144 from rushing out of the flow guide pipe 144, due to the lack of the flow guiding effect of the wall of the flow guide pipe 144, the rotational flow direction of the sewage is changed, so that the sewage drops at the communication position between the second water inlet pipe 12 and the first water inlet pipe 11, and splashes water and splash, and further the drainage and exhaust functions of the first water inlet pipe 11 are affected, in this embodiment, the flow guide pipe 144 is designed to be a closing structure with an opening at the top end larger than an opening at the bottom end. After the flow guide pipe 144 is configured as above, when sewage flows into the first water inlet pipe 11 from the flow guide pipe 144, the sewage is guided to the hollow portion of the first water inlet pipe 11 along with the pipe wall of the flow guide pipe 144, so that the sewage is prevented from dropping on the communication position between the second water inlet pipe 12 and the first water inlet pipe 11. The structure of the flow guide tube 144 is not particularly limited, for example, the flow guide tube 144 may be an inverted circular truncated cone or an eccentric circular truncated cone, or may be a structure in which a circular tube is connected to an inverted circular truncated cone or an eccentric circular truncated cone, preferably, in this embodiment, the flow guide tube 144 has a top end that is a circular tube and a bottom end that is an inverted circular truncated cone, the diameter of the circular tube is the same as the diameter of the bottom end of the circular truncated cone, and the circular tube is coaxially connected to the circular truncated cone.

Since the temperature of the sewage/wastewater from the upper main drainage pipeline 5 varies according to the source, the temperature of the sewage/wastewater varies, for example, the temperature of the wastewater generated by showering is higher than that of normal domestic water by about 30 ℃, and the temperature difference between the sewage/wastewater causes thermal expansion and contraction of the pipeline. Therefore, in order to reduce the influence of expansion with heat and contraction with cold on the pipeline, in this embodiment, an expansion joint 18 is further disposed between the pipe cover 14 and the upper-layer main drainage pipeline 5, a lower end of the expansion joint 18 is inserted into the pipe cover 14, and is connected with the connecting pipe 141 and communicated with the inside, and an upper end of the expansion joint is sleeved with the upper-layer main drainage pipeline 5 and communicated with the inside. In order to improve the connection tightness, an adhesion mode can be supplemented in the insertion process, and the upper end of the telescopic joint 18 is connected with and communicated with the upper layer main drainage pipeline 5. Specifically, the telescopic joint 18 comprises an upper cup body 181 and a lower cup body 182 which are sleeved with each other, the upper cup body 181 is communicated with the upper-layer main drainage pipeline 5, the upper cup body 181 and the upper-layer main drainage pipeline 5 can slide relatively, and the telescopic range of the telescopic joint 18 can reach 102mm at most. The lower cup 182 is inserted into the connection pipe 141 and communicates with the pipe cover 14. In addition, in this embodiment, in order to improve the sealing performance of the connection between the telescopic joint 18 and the upper main drainage pipeline 5, a sealing ring 183 and a nut ring 184 for fixing the sealing ring 183 are disposed on the inner wall of the upper end of the telescopic joint 18, wherein the nut ring 184 is in threaded connection with the upper cup 181, and an operator can fix the sealing ring 183 on the inner wall of the upper end of the upper cup 181 by rotating the nut ring 184. In order to further fix the sealing ring 183, a pressing ring 185 is further arranged between the sealing ring 183 and the nut ring 184, and by arranging the pressing ring 185, the sealing ring 183 can be pressed on the inner wall of the upper end of the upper cup 181 by screwing the nut ring 184 through the pressing ring 185.

Further, in order to discharge the sewage in the first water inlet pipe 11 into the lower drainage pipe, a first vertical pipe 111 connected with and internally communicated with the first water inlet pipe 11 and a waste water collector 19 connected with and internally communicated with the first vertical pipe 111 are further provided at the lower end of the first water inlet pipe 11. Wherein, in order to enhance the sealing performance of the drainage pipe, the first vertical pipe 111 and the first water inlet pipe 11 are integrally formed, the drainage pipe of the integrally formed structure can effectively reduce the possibility of wastewater or sewage leakage, the first vertical pipe 111 is used for connecting the first water inlet pipe 11 with the wastewater collector 19 and guiding the sewage/wastewater in the first water inlet pipe 11 to the wastewater collector 19 below, the connection mode of the first vertical pipe 111 and the wastewater collector 19 is not limited, preferably, in this embodiment, the bottom of the first vertical pipe 111 is inserted into the top of the wastewater collector 19, and likewise, in order to enhance the sealing performance of the connection, an adhesive mode can be supplemented during the insertion.

As shown in fig. 9, the waste water collector 19 includes a third water inlet pipe 191 and a fourth water inlet pipe 192, one end of the fourth water inlet pipe 192 is connected to and communicates with the inside of the side wall of the third water inlet pipe 191, and the other end is connected to the waste water connecting pipe 2 for receiving waste water from the waste water connecting pipe 2 and guiding it into the waste water collector 19, and the bottom end of the waste water collector 19 is connected to the lower water main drainage pipe 6, so that indoor waste water and waste water are drained into the drainage system through the waste water collector 19. Preferably, in the present invention, the third water inlet pipe 191 and the fourth water inlet pipe 192 are integrally formed, and the integrally formed structure can reduce the possibility of the wastewater or the sewage leaking from the wastewater collector 19, thereby improving the sealing performance during the drainage process of the local panel-lowering drainage system. In order to enhance the drainage efficiency of the waste water collector 19, the fourth water inlet pipe 192 is inclined at a certain angle relative to the horizontal plane, and waste water is prevented from staying in the fourth water inlet pipe 192 and blocking the drainage channel by the inclined fourth water inlet pipe 192. Preferably, in this embodiment, the included angle between the third water inlet pipe 191 and the fourth water inlet pipe 192 is 80 ° to 90 °.

As shown in fig. 10-12, the centralized water sealing assembly 3 includes a water sealing assembly 31, a water sealing core 32 embedded in the water sealing assembly 31 for forming a water seal, and a reserved pipe 33 disposed on the water sealing assembly 31 and communicated with the water sealing assembly 31, the water sealing assembly 31 includes a water storage part 311 and a water discharge part 312 connected with the water storage part 311 and internally communicated with the water storage part 311, the water storage part 311 is configured to receive waste water generated from the indoor, and discharges the waste water into the waste water connecting pipe 2 connected with the water discharge part 312 through the water discharge part 312, the water sealing core 32 is embedded in the water storage part 311, the water sealing core 32 is matched with the water storage part 311, and a water seal is formed in the water storage part 311, so as to prevent harmful substances such as aerosol and odor in the waste water connecting pipe 2 from entering the water sealing assembly 31 and overflowing to the indoor. Preferably, in this embodiment, the water storage member 311 and the water discharge member 312 are integrally formed, and the integrally formed structure can effectively reduce the possibility of leakage of the waste water. One end of the waste water connecting pipe 2 is connected with the drainage member 312, and the other end is connected with the fourth water inlet pipe 192, because the fourth water inlet pipe 192 is inclined, in this embodiment, the waste water connecting pipe 2 connected with the fourth water inlet pipe 192 and the drainage member 312 are both inclined.

Specifically, the water seal core 32 comprises an arc-shaped flow guide surface 321, a semicircular water seal pipe 322 connected with the flow guide surface 321, and a sealing ring 323 clamped on the water sealing core 32, the flow guide surface 321 is used for receiving waste water from the indoor, and the water is led into the water seal pipe 322, when the water seal core 32 is embedded in the water storing part 311, a gap is formed between the bottom of the water storage member 311 and the bottom of the water storage member 311, and the water storage member 311 is divided into a water inlet chamber 3111, a water storage chamber 3112 and a water discharge chamber 3113 by a water seal core 32, wherein, as shown in the figure, the water inlet chamber 3111, the water storage chamber 3112 and the water discharge chamber 3113 are disposed in a U shape, and waste water flowing to the drainage surface 321, under the flow guiding action of the flow guiding surface 321, the water enters the water storage cavity 3112 along the water inlet cavity 3111, when the liquid level of the waste water in the water storage cavity 3112 is higher than the lowest point of the water seal core 32, the water inlet cavity 3111 is isolated from the water drainage cavity 3113 to form a water seal. The liquid level in the water storage member 311 continues to rise, and when the liquid level in the water storage member 311 rises to be higher than the lowest point of the water discharge opening of the water discharge member 312, the waste water in the water storage member 311 can be discharged from the water discharge member 312. The sealing ring 323 is clamped on the edge of the water seal core 32 to enhance the sealing performance in the water seal assembly 31.

Further, the water seal assembly 31 is provided with a reserved pipe 33 communicated with the water seal assembly 31, and of course, the installation height of the water inlet of the reserved pipe 33 should be higher than the installation height of the water outlet of the water drainage member 312 in the water seal assembly 31, so as to prevent the waste water in the water storage member 311 from flowing back into the reserved pipe 33. The number of the reserved pipes 33 on the water seal assembly 31 is not limited, and preferably, in this embodiment, four sets of reserved pipes 33 are arranged on the water seal assembly 31, and the four sets of reserved pipes 33 are all connected with and communicated with the horizontal pipe drainage assembly 4.

The centralized water seal assembly 3 further comprises a support member 34 arranged above the water seal assembly 31, a check valve 35 and a floor drain cover 36 which are arranged on the support member 34, when the wastewater enters the water seal assembly 31 through the floor drain cover 36, firstly, the floor drain cover 36 filters impurities in the wastewater, the wastewater filtered through the floor drain cover 36 enters the water seal assembly 31 through the check valve 35, so as to reduce the possibility of congestion in the water seal assembly 31, the check valve 35 is in an open state when the wastewater flows into the water seal assembly 31 from the floor drain cover 36, and is in a closed state when no wastewater exists, the check valve 35 in the closed state enables the water seal assembly 31 to be in a closed state, so that the wastewater in the buffer water member 311 is prevented from evaporating, and when the discharge amount of the wastewater flowing to the water seal assembly 31 from the reserved pipe member 33 is large, the wastewater in the water storage member 31 can be prevented from overflowing to the ground through the floor drain cover 36, and prevents mosquitoes in the sewer from entering the room.

Above-mentioned structure, when overhauing concentrated water seal assembly 3, operating personnel only need take out in proper order and lie in the floor drain cover 36, check valve 35 and support piece 34 in the shower district ground, can overhaul water seal assembly 31 and the water seal core 32 of embedded in water seal assembly 31, and overhaul the field of vision good, convenient and fast.

Furthermore, the communicating part of the water storage part 311 and the water discharge part 312 is further provided with a backflow prevention plate 37, and by the arrangement of the backflow prevention plate 37, the wastewater in the wastewater connection pipe 2 is effectively prevented from flowing back to the water storage part 311 from the water discharge part 312, so that the backflow prevention effect is achieved.

The two ends of the wastewater connecting pipe 2 are respectively connected with the drainage member 312 and the fourth water inlet pipe 192, and the wastewater connecting pipe is used for leading wastewater in the centralized water seal assembly 3 into the wastewater collector 19 and then collecting the wastewater into a drainage system. Meanwhile, the waste water connecting pipe 2 is obliquely arranged, so that the height difference exists between the waste water collector 19 connected to the two ends of the waste water connecting pipe 2 and the centralized water seal assembly 3, and therefore, when the local plate lowering system provided by the invention is installed, only the local plate lowering of the area close to the drainage pipe assembly 1 in a toilet is needed, and the drainage pipe assembly 1 and the centralized water seal assembly 3 are installed in the plate lowering area. Through industrial practice, the height of the floor slab of the area of the building close to the drain pipe assembly 1 is reduced by 8-10cm approximately by using the local plate-lowering drainage system provided by the invention, so that the condition of local plate-lowering drainage can be met, preferably, the reduced height of the floor slab is 10 cm. Preferably, the included angle between the wastewater connecting pipe 2 and the horizontal plane is 5-15 degrees.

As shown in fig. 2, the horizontal pipe drainage assembly 4 comprises a first drainage pipe 41, a second drainage pipe 42, a third drainage pipe 43 and a fourth drainage pipe 44 which are respectively connected with four sets of reserved pipes 33 and are communicated with the inside, wherein the first drainage pipe 41, the second drainage pipe 42, the third drainage pipe 43 and the fourth drainage pipe 44 are respectively connected with indoor domestic wastewater drainage outlets, such as indoor dry floor drains, washbowls, bathtub and washing machine drainage outlets, and the like, so that domestic wastewater generated in the room is sent into the water storage part 311 to be drained in a centralized manner, and the quantity of wastewater in the water storage part 311 can be supplemented in time while the centralized water seal assembly 3 is shared, the wastewater in the water storage part 311 is prevented from drying out, so that the wastewater liquid level is lower than the lowest point of the water seal core 32, and the water seal failure in the water seal assembly 31 is prevented, the centralized water seal assembly 3 is arranged in the floor, so that a plurality of drainage pipes and water traps are avoided in the room, thereby reducing the space occupied by the drain pipe member in the floor slab.

As shown in fig. 1 and fig. 3, when the sewage/wastewater is discharged from the upper main drainage pipeline 5 or the lower main drainage pipeline 6, for further guiding the sewage/wastewater to be discharged in a swirling manner, thereby avoiding the formation of water plugs, in this embodiment, the spiral guiding ribs 51 are provided on the inner walls of the upper main drainage pipeline 5 and the lower main drainage pipeline 6, and after the guiding ribs 51 are provided, the sewage/wastewater in the upper main drainage pipeline 5 or the lower main drainage pipeline 6 can be guided to be discharged in a swirling manner, and the flow rate of the sewage/wastewater discharged from the drainage pipeline can be reduced, thereby maintaining the air pressure balance in the drainage pipeline, further reducing the noise during the drainage, and reducing the interference to the normal life of residents.

As shown in fig. 5 and 6, the lower main drainage pipe 6 is connected to the lower end of the waste water collector 19 for guiding the sewage/waste water in the local floor drainage system to the drainage system, a connecting member 61 for fixing the lower main drainage pipe 6 is further disposed on the lower main drainage pipe 6, specifically, a plurality of mounting holes 611 are further disposed on the connecting member 61, and an operator can fix the connecting member 19 on the floor by nailing iron nails into the mounting holes 611.

Finally, it should be noted that: the embodiment of the present invention is disclosed only as a preferred embodiment of the present invention, which is only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A local floor-lowering drainage system is characterized by comprising a drainage pipe assembly (1), a wastewater connecting pipe (2) which is communicated with the drainage pipe assembly (1) and is obliquely arranged, a concentrated water seal assembly (3) which is communicated with the wastewater connecting pipe (2), a horizontal pipe drainage assembly (4) which is communicated with the concentrated water seal assembly (3), an upper layer main drainage pipe (5) which is connected to the upper end of the drainage pipe assembly (1) and a lower layer main drainage pipe (6) which is connected to the lower end of the drainage pipe assembly, wherein the drainage pipe assembly (1) comprises a first water inlet pipe (11), a second water inlet pipe (12) which is connected with the side wall of the first water inlet pipe (11) and is internally communicated, a pipe connector (13) which is arranged at the top end of the first water inlet pipe (11), a pipe cover (14) which is movably connected with the pipe connector (13) and has an eccentric structure, and a wastewater collector (19) which connects the drainage, the waste water collector (19) comprises a third water inlet pipe (191) and a fourth water inlet pipe (192) which is connected with the side wall of the third water inlet pipe (191) and is communicated with the inside of the third water inlet pipe, wherein the fourth water inlet pipe (192), the waste water connecting pipe (2) and a drain pipe in the transverse pipe drainage component (4) are all round pipes.

2. A local downcomer system according to claim 1 wherein the angle of the waste water connecting pipe (2) to the horizontal is between 5 ° and 15 °.

3. The local dewatering drainage system according to claim 1 or 2, wherein the centralized water seal assembly (3) comprises a water seal assembly (31), a water seal core (32) embedded in the water seal assembly (31) for forming water seal, and a reserved pipe (33) arranged on the water seal assembly (31) and communicated with the water seal assembly (31), wherein the water seal assembly (31) comprises a water storage member (311) and a drainage member (312) connected with the water storage member (311) and communicated with the inside.

4. The local drawdown drainage system of claim 3, wherein the number of the reserved pipes (33) is four, and the horizontal pipe drainage assembly (4) comprises a first drainage pipe (41), a second drainage pipe (42), a third drainage pipe (43) and a fourth drainage pipe (44) which are respectively connected with and internally communicated with the four reserved pipes (33).

5. The local drawdown drainage system of claim 1, wherein the cover (14) comprises a movable pipe (143) capable of rotating 360 ° around its axis and a waste water connection pipe (141) disposed above the movable pipe (143), wherein the waste water connection pipe (141) is connected to the movable pipe (143) in an eccentric manner.

6. The local downcomer system of claim 5, wherein the duct cover (14) further includes an eccentric duct (142) and a draft tube (144); wherein the bottom end of the eccentric pipe (142) is connected with the movable pipe (143), and the top end of the eccentric pipe (142) is connected with the bottom end of the connecting pipe (141); the guide pipe (144) penetrates through the hollow part of the movable pipe (143) to be connected with the bottom end of the eccentric pipe (142) and is communicated with the inside of the eccentric pipe.

7. A partial downcomer drainage system according to claim 3 wherein the water seal core (32) includes an arcuate drainage surface (321), a semicircular water seal pipe (322) connected to the drainage surface (321), and a sealing ring (323) snap-fitted to the edge of the water seal core (32).

8. The partial drop panel drain system of claim 7, wherein the water seal core (32) divides the water trap (311) into a U-shaped inlet chamber (3111), a water trap chamber (3112) and a drain chamber (3113).

9. The partial drawdown drainage system as claimed in claim 1, wherein the inner walls of the upper level (5) and lower level (6) of the main drainage pipeline are provided with helical guiding ribs (51).

10. A local downcomer drainage system according to claim 3 wherein the collective water seal assembly (3) further includes a support member (34) disposed above the water seal assembly (31), a check valve (35) and a floor drain cover (36) mounted on the support member (34).