Central drainage collection device and system
By using the multi-channel structure and water seal design of the central drainage collection device, the high cost and backflow odor problems of multiple drainage branch pipes are solved, realizing a low-cost, low-maintenance, and highly applicable drainage system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-06
AI Technical Summary
In existing drainage pipes and systems, multiple drainage sub-pipes require floor drains of different specifications, resulting in high installation costs, difficult maintenance, and the risk of water seal failure in low-frequency water use areas, causing backflow odors in the sewers.
Design a central drainage collection device, including a central water collector with a multi-channel structure and an odor-proof component. It is connected to multiple water inlet connectors through the water collection area, and the odor-proof component is fixed by a limiting platform to realize the collection of multiple water-using structures. The water seal structure prevents the water seal from drying out, thereby reducing installation and maintenance costs.
It achieves unified drainage for multiple water-using structures, reduces the types and specifications of odor-proof components, lowers installation and maintenance costs, avoids backflow of odors from sewers, and improves the applicability and integration of the system.
Smart Images
Figure CN223974683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage device technology, and more specifically, to a central drainage collection device and system. Background Technology
[0002] Drainage pipes and systems are widely used in both domestic and industrial drainage. Currently, most common drainage pipe systems consist of one branch pipe corresponding to one floor drain. Different pipe sizes require different floor drain sizes, leading to higher installation costs, increased maintenance and cleaning difficulties, and potential resource waste. Furthermore, if the water usage frequency of the corresponding water appliance or area is low, the water seal on each branch pipe can easily dry out, resulting in a lack of water seal and causing backflow odors from the sewer.
[0003] In view of this, this utility model is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a central drainage collection device and system.
[0005] This utility model is implemented as follows:
[0006] In the first aspect, this utility model provides a central drainage collection device, including a central water collector and an odor-proof component.
[0007] The central water collector has a multi-port structure, including a water collection area, a drain connector, and multiple water inlet connectors. The inner cavity of each water inlet connector is connected to the inner cavity of the drain connector through the water collection area. The drain connector includes a first diameter section and a second diameter section arranged sequentially in the direction away from the water collection area. The diameter of the first diameter section is larger than the diameter of the second diameter section, and the first diameter section and the second diameter section are connected by a limiting platform. The odor-proof component is accommodated in the drain connector and is limited and fixed by the limiting platform.
[0008] Optionally, one of the water inlet connectors is coaxially arranged with the water collection area and the drain connector, while the other water inlet connectors intersect the axis of the drain connector.
[0009] Optionally, a drain screen cover is installed at the end of the inlet connector that is coaxially arranged with the drain connector and is away from the drain connector.
[0010] Optionally, the number of inlet connectors intersecting the axis of the drain connector is 2 to 10.
[0011] Optionally, the odor-proof component includes either a drain valve core or a water seal cap.
[0012] Optionally, when the odor-proof component is a floor drain valve core, the inner wall surface of the second diameter section of the drain connector is provided with a first sealing ring mounting position, and the first sealing ring mounting position contains a sealing ring so that the odor-proof component is sealed and installed with the second diameter section.
[0013] Optionally, the water seal cover includes a cover body and a water seal isolation element. The cover body includes a closed area and a water passage area. The water passage area is located around the closed area. The water seal isolation element is closed and connected to the closed area and extends along one side of the cover body. Multiple leakage holes are provided on the water passage area.
[0014] When the odor-proof component is a water seal cover, a water seal groove is provided in the second diameter section of the drain connector. The cover body is fixed to the limiting platform, and the water seal isolation component is accommodated in the water seal groove without contacting the water seal groove.
[0015] And / or, the water passage area consists of multiple radially distributed ribs, with water leakage holes formed between adjacent ribs.
[0016] Optionally, it also includes a toothed seal, which includes a sealing end face and a sealing extension face. The sealing extension face extends along one side of the sealing end face, and both the inner and outer surfaces of the sealing extension face are provided with multiple protruding teeth. The toothed seal is installed on the surface of the first diameter segment or the second diameter segment so that when the drain connector is configured to be connected to an external drain pipe, the connection is sealed by the toothed seal.
[0017] Optionally, a plug may also be included, which may be selectively installed on the inlet connector.
[0018] And / or, the plug is provided with at least one protrusion.
[0019] Secondly, this utility model provides a central drainage collection system, including an inlet pipe, a drain pipe, and a device as provided in any of the foregoing embodiments, wherein the inlet pipe is sealed to an inlet connector, and the drain pipe is sealed to a drain connector.
[0020] This utility model has the following beneficial effects:
[0021] This invention provides a central drainage collection device and system. By setting multiple water inlet connectors, it can connect with multiple drainage structures, such as floor drains, sinks, and other water-using structures, allowing multiple water-using structures to converge and discharge through a single drain connector. When the odor-preventing component uses a water seal structure to prevent odors, the problem of water drying at the water seal is greatly improved, thereby reducing the phenomenon of sewer backflow odors. Since there is only one drain connector and only one odor-preventing component is needed, there is no need to equip multiple specifications of odor-preventing components, reducing installation and maintenance costs. Furthermore, the drain connector includes a structure with two diameter sections (first and second diameter sections), which not only accommodates the installation of drainage pipes of different specifications but also serves as a limiting installation structure for the odor-preventing component. This central drainage collection device has a simple structure but a high degree of functional integration, making it highly valuable for application in household drainage systems. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A cross-sectional view of the central drainage collection device provided in the first embodiment of this utility model;
[0024] Figure 2 A top view of the central drainage collection device provided in the first embodiment of this utility model;
[0025] Figure 3 A cross-sectional view of the central water collector provided in the first embodiment of this utility model;
[0026] Figure 4 This is a schematic diagram of the structure of the plug provided in the first embodiment of the present utility model;
[0027] Figure 5 A cross-sectional view of the toothed seal provided in the first embodiment of this utility model;
[0028] Figure 6 A cross-sectional view of the central drainage collection system provided in the second embodiment of this utility model;
[0029] Figure 7 A cross-sectional view of the central drainage collection system provided in the second embodiment of this utility model;
[0030] Figure 8 A cross-sectional view of the central drainage collection device provided in the third embodiment of this utility model;
[0031] Figure 9 A cross-sectional view of the water seal cap provided in the third embodiment of this utility model;
[0032] Figure 10 A top view of the water seal cap provided in the third embodiment of this utility model;
[0033] Figure 11 A cross-sectional view of the central water collector provided in the third embodiment of this utility model;
[0034] Figure 12 A cross-sectional view of the central drainage collection system provided in the fourth embodiment of this utility model;
[0035] Figure 13 A cross-sectional view of the central drainage collection system provided in the fourth embodiment of this utility model.
[0036] Key component symbols: 100-Central drainage collection device; 110-Central water collector; 111-Collection area; 112-Drainage connector; 1121-First diameter section; 1122-Second diameter section; 1123-Limiting platform; 1124-First sealing ring mounting position; 113-Water inlet connector; 114-Water seal groove; 120-Drainage screen cover; 130-Floor drain valve core; 140-Water seal cover; 141-Cover body; 1411-Enclosed area; 1412-Water passage area; 1413-Leakage through hole; 1414-Rib; 142-Water seal isolation element; 150-Toothed seal; 151-Sealing end face; 152-Sealing extension surface; 153-Protruding tooth; 160-Plug; 161-Protrusion; 10-Central drainage collection system; 200-Water inlet pipe; 300-Drainage pipe. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0041] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0042] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0043] First Embodiment
[0044] Please refer to Figure 1 and 2 This embodiment provides a central drainage collection device 100, including a central water collector 110, an odor-proof component, a drainage screen cover 120, a toothed seal 150, and a plug 160.
[0045] In this embodiment, the odor-proof component is specifically a floor drain valve core 130. The floor drain valve core 130 can be selected from existing valve core structures. In order to prevent the central drainage collection device 100 from experiencing backflow of odors, the floor drain valve core 130 can, for example, be selected as a valve core structure that automatically opens to drain water when there is water and closes when there is no water.
[0046] Please refer to Figure 3The central water collector 110 has a multi-port structure, including a water collection area 111, a drain connector 112, and five water inlet connectors 113. The inner cavity of each water inlet connector 113 is connected to the inner cavity of the drain connector 112 through the water collection area 111. Therefore, the five water inlet connectors 113 can be connected to five drainage structures (such as floor drains, sinks, and other water-using structures), allowing multiple water-using structures to converge and discharge through the same drain connector 112.
[0047] Please cooperate. Figure 3 And refer to Figure 6 This design reduces the number of drain joints 112, thereby reducing the number of drain pipes 300 used to connect to the drain joints 112 and lowering installation costs.
[0048] The drain connector 112 includes a first diameter section 1121 and a second diameter section 1122 arranged sequentially in the direction away from the water catchment area 111. The diameter of the first diameter section 1121 is larger than the diameter of the second diameter section 1122, and the first diameter section 1121 and the second diameter section 1122 are connected by a limiting platform 1123. The floor drain valve core 130 is accommodated in the drain connector 112 and is limited and fixed by the limiting platform 1123.
[0049] Currently, the drain pipes 300 used in household drainage systems generally come in two sizes: DN75 and DN90. Existing central drainage collection devices 100 typically use one drain connector 112 corresponding to one odor-proof component, and also for one size of drain pipe 300. This increases the cost of the drain pipe 300, drain connector 112, and odor-proof component, and because different sizes of drain pipes 300 require different sizes of odor-proof components, subsequent maintenance becomes more difficult.
[0050] This embodiment integrates the drain connectors 112 into one unit, requiring only one drain valve core 130 as an odor-proof component to prevent backflow of odors. It can also be connected to only one drain pipe 300, which greatly reduces installation costs, improves the integration of the central drainage collection device 100, reduces the risk of incorrect selection of odor-proof component specifications during maintenance, and reduces maintenance difficulty.
[0051] Furthermore, the central drainage collection device 100 provided in this embodiment has a structure with two diameter sections, a first diameter section 1121 and a second diameter section 1122, at the drainage connector 112. This allows it to be used with drainage pipes 300 of different specifications, improving the applicability of the central drainage collection device 100 in household drainage systems. In addition, the stepped structure of the limiting platform 1123, the first diameter section 1121, and the second diameter section 1122 can also be used to limit and fix odor-proof components such as the floor drain valve core 130, further improving the integration of the central drainage collection device 100 and facilitating its application in household drainage systems.
[0052] In this embodiment, of the five water inlet connectors 113, one water inlet connector 113 is coaxially arranged with the water collection area 111 and the drain connector 112, and the other four water inlet connectors 113 are perpendicular to the axis of the drain connector 112, and adjacent water inlet connectors 113 are also perpendicular to each other.
[0053] That is, assuming that one of the water inlet connectors 113, the water collection area 111 and the drain connector 112 are set in the vertical direction, the other four water inlet connectors 113 are set in the horizontal direction.
[0054] It is understood that there are five water inlet connectors 113 in this embodiment, but this should not be taken as a limitation on the number of water inlet connectors 113 in this utility model. In other embodiments, the number of water inlet connectors 113 can be adjusted according to the production difficulty of the central drainage collection device 100 and the application scenario of the central drainage collection device 100. For example, if the number of water-using devices that need to be connected increases, the number of water inlet connectors 113 can be adjusted to six, seven, eight, nine or ten, etc.; if the number of water-using devices that need to be connected decreases, the number of water inlet connectors 113 can be adjusted to two, three or four.
[0055] In addition, the position of the water inlet connector 113 can also be designed according to actual installation needs. For example, the included angle between two adjacent water inlet connectors 113 can be 30°, 60°, 90°, 120° or 150°, etc.
[0056] In this embodiment, one of the water inlet connectors 113 is coaxially arranged with the water collection area 111 and the drain connector 112 to facilitate direct connection with the floor drain and for ease of installation. In other embodiments, if the central drainage collection device 100 does not need to be connected to the floor drain, the water inlet connector 113 may not be designed to be coaxially arranged with the water collection area 111 and the drain connector 112.
[0057] In this embodiment, since the water inlet connector 113, which is coaxially arranged with the drain connector 112, is used to communicate with the floor drain, a drain screen cover 120 is installed at the end of the water inlet connector 113 away from the drain connector 112. In other embodiments, if the water inlet connector 113, which is coaxially arranged with the drain connector 112, is connected to other water-using structures, such as the drain pipe 300 of the washbasin, then the drain screen cover 120 may not be required.
[0058] Please refer to Figure 1 and Figure 2 In this embodiment, the drainage screen cover 120 includes uniformly arranged reinforcing ribs and screen holes to filter large particulate impurities in the water and prevent the central drainage collection device 100 from becoming clogged.
[0059] Please refer to Figure 1 and Figure 3 In this embodiment, the drain valve core 130 is fixed inside the drain connector 112 by the limiting platform 1123 and extends from the limiting platform 1123 into the second diameter section 1122. To prevent odor from overflowing due to the installation gap between the drain valve core 130 and the drain connector 112, a first sealing ring mounting position 1124 is provided on the inner wall surface of the second diameter section 1122 of the drain connector 112. The first sealing ring mounting position 1124 contains a sealing ring so that the odor-proof component is sealed and installed with the second diameter section 1122.
[0060] Please refer to Figure 4 In this embodiment, since there are five water inlet connectors 113, when some water inlet connectors 113 do not need to be connected to the water supply structure, the end face of the water inlet connector 113 can be sealed by the plug 160. Therefore, it can be understood that if all water inlet connectors 113 have corresponding water supply structures installed, there is no need to use plugs.
[0061] Furthermore, the central drainage collection device 100 provided in this embodiment of the present invention can not only adapt to the connection requirements of water-using devices by adjusting the design number of water inlet connectors 113, but also adapt to the connection requirements of water-using devices by using plugs 160 when the number of water inlet connectors 113 is fixed, making the central drainage collection device 100 more applicable.
[0062] In this embodiment, the plug 160 is provided with two protrusions 161. The two protrusions 161 are symmetrically designed and protrude along the side surface of the plug 160 to facilitate the installation and removal of the plug 160. In other embodiments, the number of protrusions 161 can be designed as needed, as long as it facilitates the installation of the plug 160. In addition, in other embodiments, the protrusions 161 can also protrude along the upper surface of the plug 160 as needed.
[0063] In this embodiment, since the drain connector 112 has a first diameter section 1121 and a second diameter section 1122, the drain connector 112 can be used for the installation of two sizes of drain pipes 300.
[0064] Please refer to Figure 1 and Figure 5 In order to ensure the tightness of the installation between the drain connector 112 and the drain pipe 300 and to prevent water leakage, a toothed seal 150 is provided between the drain connector 112 and the drain pipe 300.
[0065] Please refer to Figure 5The toothed seal 150 includes a sealing end face 151 and a sealing extension face 152. The sealing extension face 152 extends along one side of the sealing end face 151, and both the inner and outer surfaces of the sealing extension face 152 are provided with a plurality of protruding teeth 153. The toothed seal 150 is installed on the surface of the first diameter section 1121 or the second diameter section 1122 so that when the drain connector 112 is configured to be connected to the external drain pipe 300, the connection is sealed by the toothed seal 150.
[0066] Please refer to Figure 6 In this embodiment, when the second diameter segment 1122 is used to connect with the drainage pipe 300, a toothed seal 150 is used to seal the connection between the two. The two sides of the sealing end face 151 are in contact with the end face of the limiting platform 1123 and the drainage pipe 300, respectively. The two sides of the sealing extension surface 152 are in contact with the outer wall surface of the second diameter segment 1122 and the inner wall surface of the drainage pipe 300, respectively. The protruding teeth 153 are embedded in the second diameter segment 1122 and the drainage pipe 300 to make the connection between the two tighter.
[0067] Please refer to Figure 7 When the drainage pipe 300 is connected to the first diameter section 1121, a toothed seal 150 can be used to seal the connection between the two, or an O-ring can be used directly to seal the connection between the two.
[0068] The working principle of the central drainage collection device 100 provided in this embodiment is as follows:
[0069] Please refer to Figure 1 Water discharged from water-using structures such as floor drains and sinks flows into the water collection area 111 through the inlet connector via a pipe. The floor drain valve core 130 opens when water is encountered, and the water flows through the floor drain valve core 130 and is discharged from the drain connector 112. When the water in the water collection area 111 is drained, the floor drain valve core 130 automatically closes to prevent backflow of odors.
[0070] Second Embodiment
[0071] Please refer to Figure 6 and Figure 7 This embodiment provides a central drainage collection system 10, including an inlet pipe 200, a drain pipe 300, and a central drainage collection device 100 provided in the first embodiment.
[0072] The water inlet pipe 200 is sealed to the water inlet connector 113, and the drain pipe 300 is sealed to the drain connector 112.
[0073] Specifically, the drainage pipe 300 can be sealed to the first diameter section 1121 or the second diameter section 1122 of the drainage connector 112 of the central drainage collection device 100 (e.g., Figure 6 or Figure 7As shown in the figure, it can be used to connect and install drainage pipes of various specifications 300, making it more applicable.
[0074] Please refer to Figure 6 and Figure 7 The working principle of the central drainage collection system 10 provided in this embodiment includes: water discharged from water-using structures such as floor drains and washbasins flows into the water collection area 111 through the inlet pipe 200 from the inlet joint; the floor drain valve core 130 opens when water is encountered; water flows through the floor drain valve core 130 and is discharged from the drain pipe 300 connected to the drain joint 112; when the water in the water collection area 111 is drained, the floor drain valve core 130 automatically closes to prevent backflow of odors.
[0075] Third Embodiment
[0076] Please refer to Figure 8 This embodiment provides a central drainage collection device 100, whose structure is similar to that of the first embodiment, with the following differences:
[0077] Please refer to Figure 9 and Figure 10 In this embodiment, the odor-proof component is a water seal cover 140. The water seal cover 140 includes a cover body 141 and a water seal isolation component 142. The cover body 141 includes a closed area 1411 and a water passage area 1412. The water passage area 1412 is located around the closed area 1411. The water seal isolation component 142 is connected to the closed area 1411 and extends along one side of the cover body 141. The water passage area 1412 is provided with a plurality of water leakage holes 1413.
[0078] In this embodiment, the closed area 1411 is located at the center of the cover 141, the water passage area 1412 is located at the edge of the cover 141, and the position of the cover 141 corresponding to the water passage area 1412 is located outside the water seal isolation member 142, so that water can flow out from the water leakage hole 1413 of the water passage area 1412.
[0079] In this embodiment, the water passage area 1412 is composed of a plurality of radially distributed ribs 1414, and a water leakage through hole 1413 is formed between adjacent ribs 1414.
[0080] Please refer to Figure 11 Furthermore, in order to match the structure of the water seal cover 140, a water seal groove 114 is provided in the second diameter section 1122 of the drain connector 112. The cover 141 is fixed to the limiting platform 1123, and the water seal isolation member 142 is accommodated in the water seal groove 114 and does not contact the bottom wall and side wall of the water seal groove 114, so that the water seal cover 140 and the water seal groove 114 cooperate to form a water seal structure.
[0081] Since the central drainage collection device 100 in this embodiment collects the water flowing through multiple water inlet connectors 113 into a single drain connector 112 for discharge, there is no situation where the water seal of the corresponding drain connector 112 dries out due to insufficient drainage from some water-using structures, thus avoiding the occurrence of odor backflow. In addition, this structure only requires one odor-proof component and one drain connector 112, greatly reducing installation costs.
[0082] The working principle of the central drainage collection device 100 provided in this embodiment is as follows:
[0083] Please refer to Figure 8 Water discharged from water-using structures such as floor drains and sinks flows into the water collection area 111 through the inlet joint via pipes. Then, the water flows from the leakage hole 1413 on the edge of the water seal cover 140 into the water seal groove 114 to form a water seal. When the water level in the water seal groove 114 is higher than the height of the inner wall of the water seal groove 114, the excess water overflows from the water seal groove 114. After the overflow water is drained, the remaining water in the water seal groove 114 acts as a water seal to prevent odor from returning.
[0084] Fourth embodiment
[0085] Please refer to Figure 12 and Figure 13 This embodiment provides a central drainage collection system 10, including an inlet pipe 200, a drain pipe 300, and a central drainage collection device 100 provided in the third embodiment.
[0086] The water inlet pipe 200 is sealed to the water inlet connector 113, and the drain pipe 300 is sealed to the drain connector 112.
[0087] Specifically, the drainage pipe 300 can be sealed to the first diameter section 1121 or the second diameter section 1122 of the drainage connector 112 of the central drainage collection device 100 (e.g., Figure 12 and Figure 13 As shown in the figure, it can be used to connect and install drainage pipes of various specifications 300, making it more applicable.
[0088] The working principle of the central drainage collection system 10 provided in this embodiment includes: water discharged from water-using structures such as floor drains and washbasins flows into the collection area 111 through the inlet pipe 200 from the inlet joint. Then, the water flows from the leakage hole 1413 on the edge of the water seal cover 140 into the water seal groove 114 to form a water seal. When the height of the water in the water seal groove 114 is higher than the height of the inner wall of the water seal groove 114, the excess water overflows from the water seal groove 114 and is discharged through the drain pipe 300. After the overflow water is discharged, the remaining water in the water seal groove 114 serves as a water seal to prevent odor from returning.
[0089] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A central drainage collection device, characterized in that, The device comprises a central water collector and a deodorizing element. The central water collector has a multi-channel structure, comprising a water collecting area, a water outlet joint and a plurality of water inlet joints. The inner cavity of each water inlet joint is connected to the inner cavity of the water outlet joint through the water collecting area. The water outlet joint comprises a first diameter section and a second diameter section arranged in sequence in a direction away from the water collecting area. The diameter of the first diameter section is larger than that of the second diameter section. The first diameter section and the second diameter section are connected by a limiting platform. The deodorizing element is accommodated in the water outlet joint and is limited and fixed by the limiting platform.
2. The apparatus of claim 1, wherein, One of the water inlet joints is coaxially arranged with the water collecting area and the water outlet joint. The remaining water inlet joints intersect the axis of the water outlet joint.
3. The apparatus of claim 2, wherein, The water inlet joint coaxially arranged with the water outlet joint is provided with a water outlet screen cover at an end away from the water outlet joint.
4. The apparatus of claim 2, wherein, The number of water inlet joints intersecting the axis of the water outlet joint is 2-10.
5. The apparatus of claim 1, wherein, The deodorizing element comprises any one of a floor drain valve core or a water seal cover.
6. The apparatus of claim 5, wherein, When the deodorizing element is a floor drain valve core, the inner wall surface of the second diameter section of the water outlet joint is provided with a first sealing ring mounting position. A sealing ring is accommodated in the first sealing ring mounting position to enable the deodorizing element to be sealingly mounted with the second diameter section.
7. The apparatus of claim 5, wherein, The water seal cover comprises a cover body and a water seal isolation element. The cover body comprises a closed area and a water passing area. The water passing area is located around the closed area. The water seal isolation element is connected to the closed area around and extends along one side of the cover body. A plurality of water leakage through holes are provided on the water passing area. When the deodorizing element is a water seal cover, a water seal groove is provided in the second diameter section of the water outlet joint. The cover body is limited and fixed with the limiting platform. The water seal isolation element is accommodated in the water seal groove and does not contact the water seal groove. The water passing area is composed of a plurality of radial rib strips. The water leakage through holes are formed between adjacent rib strips.
8. The apparatus of claim 1, wherein, The device further comprises a tooth-shaped sealing element. The tooth-shaped sealing element comprises a sealing end surface and a sealing extension surface. The sealing extension surface extends along one side of the sealing end surface. The inner surface and the outer surface of the sealing extension surface are provided with a plurality of protrusions. The tooth-shaped sealing element is mounted on the surface of the first diameter section or the second diameter section to enable the water outlet joint to be sealingly connected with an external water outlet pipeline when the water outlet joint is connected with the external water outlet pipeline.
9. The apparatus of claim 1, wherein, The device further comprises a plug cover which is selectively mounted on the water inlet joint. At least one protrusion is provided on the plug cover.
10. A central drainage collection system characterized by, The device comprises a water inlet pipeline, a water outlet pipeline and the device according to any one of claims 1-9. The water inlet pipeline is sealingly mounted with the water inlet joint. The water outlet pipeline is sealingly mounted with the water outlet joint.