Water seal gravity deodorization core
By introducing a gravity adjustment mechanism into the water-sealed odor-proof core, the problem of the water-sealed odor-proof core failing due to water evaporation is solved, achieving a continuous odor-proof effect in both waterless and water-containing conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 徐加平
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-19
AI Technical Summary
Existing water-sealed odor-proof cores lose their odor-proof function when not in use for a long time due to evaporation from the water gaps.
A gravity adjustment mechanism is installed between the diversion tube and the water storage cup. The driving mechanism applies an upward force to the water storage cup, causing it to rise and seal the lower port of the diversion tube when there is no water, ensuring the odor prevention effect; when there is water, it falls with gravity to achieve a water seal and prevent odor.
It can prevent odors regardless of whether there is water in the water cup, thus enhancing the durability and reliability of the odor-preventing core.
Smart Images

Figure CN224259522U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an odor-proof core for a drainage device, specifically a water-sealed gravity odor-proof core. Background Technology
[0002] Currently, the utility model disclosed in CN221095372U is a water-sealed floor drain anti-odor valve core, which includes an outer core water cup, an inner core guide tube, and a handle. The outer core water cup consists of a water storage part, a water outlet, a cup neck, and a cup top flange from bottom to top. There is a water seal gap between the lower part of the inner core guide tube and the water storage part. An installation hole is provided on the cup neck. The handle is installed in the installation hole by inserting an installation foot. A sealing ring is sleeved on the outer wall of the cup neck. The end of the installation foot passes through the installation hole and pushes the sealing ring outward, so that the inner wall of the sealing ring is attached to the end of the installation foot.
[0003] The aforementioned water-sealed odor-proof core achieves its sealing effect by storing water in the water-storage gap. When the odor-proof core is not used for a long time, the water in the water-storage gap will evaporate, and the odor-proof core will lose its odor-proof function. Utility Model Content
[0004] The purpose of this utility model is to provide a water-sealed gravity-based odor-proof core, which has a gravity adjustment mechanism between the guide tube and the water cup. When there is no water in the water cup, the gravity adjustment mechanism will drive the water cup to rise, so that the odor-proof effect can be achieved regardless of whether there is water in the water cup.
[0005] To achieve the above objectives, the following technical solution is adopted:
[0006] A water-sealed gravity-operated odor-proof core includes a base and a water cup. A guide tube is provided at the lower part of the base. The water cup is sleeved around the guide tube from the lower end, forming a water storage area between the inner wall of the water cup and the outer wall of the guide tube. The upper port of the water cup is located higher than the lower port of the guide tube. The key feature is that a gravity adjustment mechanism is also provided between the guide tube and the water cup, and the gravity adjustment mechanism applies an upward force to the water cup.
[0007] The gravity adjustment mechanism includes a connecting seat disposed inside the guide tube, the connecting seat being fixed to the inner wall of the guide tube, and a guide sleeve disposed on the connecting seat along the axial direction of the guide tube; a guide rod is disposed at the bottom of the water storage cup, the guide rod being housed in the guide sleeve, and a driving mechanism is disposed between the guide rod and the guide sleeve, the driving mechanism applying an upward force to the water storage cup through the guide rod.
[0008] The drive mechanism includes a convex ring at the lower end of the guide sleeve, a nut at the upper end of the guide rod, and a spring sleeved on the guide rod, with the upper and lower ends of the spring abutting against the convex ring and the nut, respectively.
[0009] The connecting seat is located at the center of the guide tube and is connected to the inner wall of the guide tube by a radial connecting strip.
[0010] The guide rod is positioned at the center of the bottom of the water cup. When the water cup is fitted onto the lower end of the guide tube, an annular water storage area is formed between the water cup and the guide tube.
[0011] This invention features a gravity adjustment mechanism between the flow guide tube and the water storage cup. When the water storage cup is empty, the gravity adjustment mechanism drives the water storage cup to rise, causing it to descend and close the lower end of the flow guide tube. In this case, even without water in the water storage cup, it can still prevent odors. When there is water in the water storage cup, it descends as the water level increases. Under the influence of gravity, the descending water storage cup opens the lower end of the flow guide tube, thus achieving a water seal and odor prevention effect. The odor prevention effect can be achieved regardless of whether there is water in the water storage cup. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0014] Figure 3 This is an exploded structural diagram (I) of the present invention;
[0015] Figure 4 This is a schematic diagram of the exploded structure of this utility model (II). Detailed Implementation
[0016] like Figure 1-4 As shown, a water-sealed gravity odor-proof core includes a base 1 and a water cup 2. A guide tube 11 is provided at the lower part of the base 1. The water cup 2 is sleeved around the guide tube 11 from the lower end of the guide tube 11. A water storage area 5 is formed between the inner wall of the water cup 2 and the outer wall of the guide tube 11. The upper port of the water cup 2 is located above the lower port of the guide tube 11. A gravity adjustment mechanism is also provided between the guide tube 11 and the water cup 2. The gravity adjustment mechanism applies an upward force to the water cup.
[0017] The gravity adjustment mechanism includes a connecting seat 3 disposed inside the guide pipe 11, the connecting seat 3 being fixed to the inner wall of the guide pipe 11, and a guide sleeve 31 disposed on the connecting seat 3 along the axial direction of the guide pipe; a guide rod 21 is disposed at the bottom of the water cup 2, the guide rod 21 being accommodated in the direction of the guide sleeve 31, and a driving mechanism is disposed between the guide rod 21 and the guide sleeve 31, the driving mechanism applying an upward force to the water cup 2 through the guide rod 21; the connecting seat 3 is disposed at the center position of the guide pipe 11, and the connecting seat 3 is connected to the inner wall of the guide pipe 11 through a radial connecting strip 33; the guide rod 21 is disposed at the center position of the bottom of the water cup 2, and when the water cup 2 is sleeved on the lower end of the guide pipe 11, an annular water storage area 5 is formed between the water cup 2 and the guide pipe 11.
[0018] The drive mechanism includes a protruding ring 32 at the lower end of the guide sleeve 31, a nut 22 at the upper end of the guide rod 21, and a spring 4 sleeved on the guide rod 21. The upper and lower ends of the spring 4 abut against the protruding ring 32 and the nut 3322, respectively.
[0019] This utility model has a gravity adjustment mechanism between the guide tube 11 and the water cup 2. When there is no water in the water cup 2, the gravity adjustment mechanism will drive the water cup 2 to rise, and the water cup 2 will seal the lower end of the guide tube. At this time, even if there is no water in the water cup 2, it can still achieve the effect of preventing odor.
[0020] When water enters the guide tube, the weight of the water cup increases with the increase of water volume. The water cup 2 will compress the spring 4, causing the water cup 2 to descend. As the water volume increases, the water cup will descend further until it reaches the lowest position. During this period, the water level in the water cup is always higher than the lower end of the guide tube 11. At this time, the odor-proof core has a water seal odor-proof effect. This utility model uses the weight of the water stored in the water cup to automatically adjust the height of the water cup, and can achieve the odor-proof effect regardless of whether there is water in the water cup.
Claims
1. A water-sealed gravity odor-proof core, comprising a base (1) and a water storage cup (2), wherein a guide tube (11) is provided at the lower part of the base (1), and the water storage cup (2) is sleeved around the guide tube (11) from the lower end of the guide tube (11), forming a water storage area (5) between the inner wall of the water storage cup (2) and the outer wall of the guide tube (11), wherein the upper port of the water storage cup (2) is located above the lower port of the guide tube (11), characterized in that: A gravity adjustment mechanism is also provided between the guide pipe (11) and the water storage cup (2), and the gravity adjustment mechanism applies an upward force to the water storage cup.
2. The water-sealed gravity-operated odor-proof core as described in claim 1, characterized in that: The gravity adjustment mechanism includes a connecting seat (3) set inside the guide pipe (11), the connecting seat (3) being fixed to the inner wall of the guide pipe (11), and a guide sleeve (31) along the axial direction of the guide pipe being provided on the connecting seat (3); a guide rod (21) is provided at the bottom of the water cup (2), the guide rod (21) being housed in the guide sleeve (31), and a driving mechanism is provided between the guide rod (21) and the guide sleeve (31), the driving mechanism applying an upward force to the water cup (2) through the guide rod (21).
3. The water-sealed gravity-operated odor-proof core as described in claim 2, characterized in that: The drive mechanism includes a convex ring (32) at the lower end of the guide sleeve (31), a nut (22) at the upper end of the guide rod (21), and a spring (4) sleeved on the guide rod (21). The upper and lower ends of the spring (4) abut against the convex ring (32) and the nut (3322) respectively.
4. The water-sealed gravity odor-proof core as described in claim 2, characterized in that: The connecting seat (3) is located at the center of the guide pipe (11), and the connecting seat (3) is connected to the inner wall of the guide pipe (11) by a radial connecting strip (33).
5. The water-sealed gravity odor-proof core as described in claim 4, characterized in that: The guide rod (21) is positioned at the center of the bottom of the water cup (2). When the water cup (2) is fitted onto the lower end of the guide tube (11), an annular water storage area (5) is formed between the water cup (2) and the guide tube (11).