Deodorizing drainer
By introducing a removable odor-proof valve core and locking assembly into the drain, and utilizing the squeezing mechanism of the sealing ring and expansion bolt, the problem of sewer odor pollution is solved, achieving the dual functions of sewage discharge and odor prevention, and is easy to clean and maintain.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-03-13
AI Technical Summary
Existing drain systems are ineffective in preventing foul odors from the sewers from polluting the living environment.
An odor-proof drain device was designed, which uses a detachable odor-proof valve core, an upper locking component, and a lower locking component. It achieves a seal through the compression mechanism of a sealing ring and an expansion bolt, preventing odors from entering the residence from the sewer.
It effectively prevents odors from entering residences while discharging sewage, enhances installation flexibility and adaptability, and facilitates cleaning and maintenance.
Smart Images
Figure CN223991416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to kitchen and bathroom products, specifically an odor-proof drain for drain pipe interfaces. Background Technology
[0002] In daily life, domestic wastewater and sewage are discharged into the sewage treatment system through sewers. Due to the poor ventilation conditions in sewers, anaerobic bacteria can easily grow, decomposing some organic matter and producing unpleasant odors. These odors often enter residences through sewer pipes, polluting the living environment. Therefore, it is necessary to design odor-proof sewer systems that can both discharge sewage and prevent odors from entering residences through the sewers. Utility Model Content
[0003] The purpose of this utility model is to provide an odor-proof drain device with a novel and unique structure, convenient use, and the ability to prevent odors from the sewer from polluting the residence; the specific technical solution is as follows:
[0004] An odor-proof drain device includes a drain device body; a detachable odor-proof valve core is provided between the drain device inlet and the drain device outlet of the drain device body.
[0005] Furthermore, the drain inlet is equipped with an upper locking assembly for locking the inlet pipe.
[0006] Furthermore, the drain outlet is equipped with a lower locking assembly for locking the outlet pipe.
[0007] Furthermore, the upper locking assembly consists of an upper locking nut, an upper interface tube, and an upper pipe sealing ring; the inner wall of the inlet of the upper interface tube is a conical cavity that is larger at the top and smaller at the bottom; the upper locking nut and the upper interface tube form a threaded compression mechanism, which compresses the upper pipe sealing ring in the conical cavity by locking the upper locking nut.
[0008] Furthermore, the bottom of the upper pipe sealing ring is provided with several radial through grooves.
[0009] Furthermore, the lower locking assembly consists of a lower interface tube, a lower locking nut, a lower pipe sealing ring, and an expansion bolt; the expansion bolt is snapped or threadedly connected to the lower interface tube; the lower pipe sealing ring is sleeved on the outside of the lower interface tube and positioned between the lower locking nut and the expansion bolt; the lower locking nut engages with the external thread of the lower interface tube through its internal thread, forming a compression mechanism for the lower pipe sealing ring.
[0010] Furthermore, the odor-proof valve core is provided with a fixed outer edge, and the upper interface pipe and the lower interface pipe are snap-fitted or threaded together to clamp the fixed outer edge and fix the odor-proof valve core between the drain inlet and the drain outlet.
[0011] This utility model of an odor-proof drainer is equipped with an odor-proof valve core between the drainer inlet and outlet. By placing the odor-proof valve core in the middle of the odor-proof drainer, the installation of the odor-proof drainer is more flexible and can be connected in series to various parts of the drain pipe; thus, it has greater adaptability. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the odor-proof drain device of this utility model;
[0013] Figure 2 for Figure 1 A schematic diagram of a half-section structure;
[0014] Figure 3 for Figure 1 A structural decomposition diagram.
[0015] In the diagram: 1. Expansion bolt; 2. Lower locking nut; 3. Upper interface pipe; 4. Upper locking nut; 5. Lower interface pipe; 6. Lower pipe sealing ring; 7. Upper pipe sealing ring; 8. Odor-proof valve core. Detailed Implementation
[0016] The present invention will be described more fully below with reference to embodiments. The present invention may be embodied in many different forms and should not be construed as being limited to the exemplary embodiments described herein.
[0017] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “down” of another element or feature would be positioned “up” of that other element or feature. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0018] like Figures 1 to 3 As shown, the odor-proof drain device in this embodiment includes a drain device body; a detachable odor-proof valve core 8 is provided between the inlet and outlet of the drain device body. The structure of the odor-proof valve core 8 is in the prior art and will not be described in detail here.
[0019] The odor-proof valve core 8 is provided with a fixing outer edge for fixed installation. The fixing outer edge abuts against the protrusion inside the pipe wall, thereby fixing the position of the odor-proof valve core 8 inside the pipe. The fixing outer edge is provided on the outer wall of the odor-proof valve core 8; it can be located at the upper end, or at the middle or lower end.
[0020] The boss can be set on the inner wall of the upper interface pipe 3 or the inner wall of the lower interface pipe 5; preferably, a clamping structure adapted to the thickness of the fixed outer edge is formed between the lower end of the inner wall of the upper interface pipe 3 and the upper end of the lower interface pipe 5, and clamped between the inlet and outlet of the drain body by the upper interface pipe 3 and the lower interface pipe 5; in this way, a sealing gasket can be added between the clamping structure and the fixed outer edge to prevent odor from overflowing from the clamping structure.
[0021] When the diameter of the upper interface pipe 3 is larger than that of the lower interface pipe 5, the clamping structure can be formed by the flange at the lower end of the inner wall of the upper interface pipe 3 and the top surface of the lower interface pipe 5. When the diameter of the upper interface pipe 3 is smaller than that of the lower interface pipe 5, the clamping structure can be formed by the flange at the upper end of the inner wall of the lower interface pipe 5 and the bottom surface of the upper interface pipe 3. The upper interface pipe 3 and the lower interface pipe 5 can be connected by snap-fit or by thread.
[0022] The odor-proof valve core 8 is fixed in a detachable manner, which facilitates cleaning and maintenance. The odor-proof valve core 8 can be removed for cleaning. After removing the odor-proof valve core 8, the inner cavity of the drain is not obstructed by the odor-proof valve core 8, making cleaning easier.
[0023] The drain assembly's inlet can be equipped with an upper locking component to secure the inlet pipe (not shown in the figure); this makes the connection between the drain assembly and the inlet pipe more secure and less likely to detach. Similarly, the drain assembly's outlet should preferably also be equipped with a lower locking component to secure the outlet pipe (not shown in the figure).
[0024] The upper locking assembly can be composed of an upper locking nut 4, an upper interface tube 3, and an upper pipe sealing ring 7. Tightening the upper locking nut compresses the upper pipe sealing ring within the conical cavity, deforming the upper pipe sealing ring 7 and gripping the inlet tube. The inner diameter of the upper pipe sealing ring 7 should be slightly smaller than the diameter of the inlet tube to ensure a secure connection after locking.
[0025] The inner wall of the inlet of the upper interface pipe 3 can also be configured as a conical cavity with a larger upper part and a smaller lower part; the upper pipe sealing ring 7 can also be configured as a conical ring with a larger upper end and a smaller lower end. The upper locking nut on the outer wall and the upper interface pipe form a threaded extrusion mechanism, and the upper pipe sealing ring in the conical cavity is extruded by locking the upper locking nut; the upper pipe sealing ring deforms in the conical cavity and the connection with the inlet pipe is more secure.
[0026] The bottom of the upper pipe sealing ring can also have several radial through grooves; when squeezed by the upper locking nut 4, the lower end can deform more, and the connection with the inlet pipe is more secure.
[0027] The lower locking assembly can be composed of a lower interface pipe 5, a lower locking nut 2, a lower pipe sealing ring 6, and an expansion bolt 1; the lower pipe sealing ring 6 is sleeved on the lower interface pipe 5 and is located between the lower locking nut 2 and the expansion bolt 1; the lower locking nut 2 is engaged with the external thread of the lower interface pipe 5 through its internal thread to form a compression mechanism for the lower pipe sealing ring 6.
[0028] The lower pipe sealing ring 6 is circular, and the cross-section of the ring is a double-hipped trapezoid. The upper and lower ends of the inner side are both conical surfaces. The upper conical surface has a larger diameter at the top and a smaller diameter at the bottom, which mates with the conical surface at the lower end of the lower locking nut 2. The lower end surface has a smaller diameter at the top and a larger diameter at the bottom, which mates with the conical surface at the lower end of the expansion bolt 1. When the lower locking nut 2 moves closer to the expansion bolt 1, the conical surfaces mate, opening up the lower pipe sealing ring 6 and supporting the inner wall of the outlet pipe to achieve a firm connection.
[0029] The expansion bolt 1 is a reducing pipe; the upper end has a smaller diameter, the lower end has a larger diameter, and the middle part is a tapered reducing section. The outer wall of the upper end pipe can be threaded or have a snap-fit structure to facilitate threaded or snap-fit connection with the lower interface pipe 5. The snap-fit structure can be a flange or a groove, which mates with the groove or flange on the inner wall of the lower interface pipe 5.
[0030] The expansion bolt 1 and the lower interface pipe 5 can be connected by snap-fit or by thread.
[0031] In use, first screw the lower locking nut 2 to the top of the external thread of the lower interface pipe 5; then attach the lower pipe sealing ring 6; connect the expansion bolt 1 to the lower interface pipe 5, and fix the lower pipe sealing ring 6 between the lower locking nut 2 and the expansion bolt 1; insert the lower interface pipe 5 into the outlet pipe; rotate the lower locking nut 2 to move it towards the expansion bolt 1, compressing the lower pipe sealing ring 6; the inclined surfaces at the upper and lower ends of the lower pipe sealing ring 6 cooperate with the inclined surfaces of the lower locking nut 2 and the expansion bolt 1, and the diameter of the lower pipe sealing ring 6 gradually increases, tightening the outlet pipe; finally, it is locked to the outlet pipe.
[0032] Next, insert the inlet pipe into the upper pipe sealing ring 7. Use the upper end of the inner cavity of the upper locking nut 4 to squeeze the upper pipe sealing ring 7 into the conical annular cavity between the inlet pipe and the upper interface pipe 3. The upper pipe sealing ring 7 is deformed under pressure and hugs the inlet pipe, thus achieving a firm connection.
[0033] After the connection is completed, sewage enters the drain from the inlet pipe, passes through the odor-proof valve core 8, and enters the outlet pipe; after the sewage is discharged, the odor-proof valve core 8 automatically closes; the inlet and outlet of the drain are blocked by the odor-proof valve core 8; odor cannot enter the inlet pipe, thus achieving the odor-proof function.
[0034] The above examples are only used to illustrate this utility model. In addition, there are many other different implementation methods, which can be conceived by those skilled in the art after understanding the concept of this utility model. Therefore, they will not be listed one by one here.
Claims
1. A deodorizing drain device comprising a drain body; characterized by, The inlet of the sewer body is provided with an upper locking assembly for locking the inlet pipe; the outlet of the sewer body is provided with a lower locking assembly for locking the outlet pipe; and a detachable odor-proof valve core is arranged between the inlet and the outlet of the sewer body.
2. The odor-resistant trap of claim 1, wherein, The upper locking assembly is composed of an upper locking nut, an upper interface pipe and an upper pipe sealing rubber ring; the inner wall of the inlet of the upper interface pipe is a conical cavity with a large upper part and a small lower part; the upper locking nut and the upper interface pipe form a threaded extrusion mechanism, and the upper pipe sealing rubber ring in the conical cavity is extruded by locking the upper locking nut.
3. The odor-resistant trap of claim 2, wherein, The bottom of the upper pipe sealing rubber ring is provided with a plurality of radial through grooves.
4. The odor-resistant trap of claim 1, wherein The lower locking assembly is composed of a lower interface pipe, a lower locking nut, a lower pipe sealing rubber ring and an expansion bolt; the expansion bolt is connected with the lower interface pipe by clamping or screwing; the lower pipe sealing rubber ring is sleeved outside the lower interface pipe and is arranged between the lower locking nut and the expansion bolt; the lower locking nut is matched with the outer thread of the lower interface pipe through the inner thread to form an extrusion mechanism of the lower pipe sealing rubber ring.
5. The odor-resistant trap of claim 1, wherein, The odor-proof valve core is provided with a fixed outer edge; the upper interface pipe of the upper locking assembly and the lower interface pipe of the lower locking assembly are connected by clamping or screwing, and the fixed outer edge is clamped to fix the odor-proof valve core between the inlet and the outlet of the sewer.