A type of odor-proof drain device

Abstract

This utility model provides an odor-proof drain device, belonging to the technical field of drain devices. It includes a sleeve base connected to the bottom of a washbasin, with a through hole inside the sleeve base. Opposite hinge posts are provided on the side wall of the sleeve base, and a locking lever is hinged to each hinge post. A limit protrusion is provided at the bottom of the locking lever near the hinge end. A drain pipe seat located below the hinge posts is fitted onto the sleeve base. The side wall of the drain pipe seat has an opening facing downwards for locking the end of the pipe fitting. The upper end of the drain pipe seat has an abutment end corresponding to the limit protrusion. A sealing ring is fitted onto the sleeve base, and the bottom of the drain pipe seat is embedded in the gap between the sleeve base and the sealing ring. An abutment ring is provided on the sleeve base for abutting the bottom of the sealing ring. This utility model has the advantages of simple installation and operation, and saves installation space.

Description

Technical Field

[0001] This utility model belongs to the field of drainage device technology, and specifically refers to an odor-proof drainage device. Background Technology

[0002] The drain assembly is a key component that connects the basin drain outlet to the drain pipe. Its ease of installation and sealing reliability directly affect the user experience.

[0003] Traditional drain assemblies typically use a bottom-locking nut design, requiring manual screwing of the nut under the sink during installation to secure it to the drain pipe by compressing the sealing ring. This method is limited by narrow installation spaces and relies heavily on the tightness of the nut, easily leading to insufficient tightening causing leaks or over-tightening damaging the threads. Utility Model Content

[0004] The purpose of this utility model is to provide an odor-proof drain device that effectively fixes the drain pipe and is easy to operate and install.

[0005] The purpose of this utility model is achieved as follows:

[0006] An odor-proof drain assembly includes a sleeve base connected to the bottom of a washbasin. The sleeve base has a through hole. Opposing hinge posts are provided on the side wall of the sleeve base. A locking lever is hinged to each hinge post. A limiting protrusion is provided at the bottom of the locking lever near the hinge end. A drain pipe seat located below the hinge posts is fitted onto the sleeve base. The side wall of the drain pipe seat has an opening facing downwards for locking the end of a pipe fitting. The upper end of the drain pipe seat has an abutment end corresponding to the limiting protrusion. A sealing ring is fitted onto the sleeve base, and the bottom of the drain pipe seat is embedded in the gap between the sleeve base and the sealing ring. An abutment ring is provided on the sleeve base for abutting the bottom of the sealing ring. When the locking lever rotates hinged along the hinge post and fits against the side wall of the sleeve base, the bottom of the limiting protrusion abuts against the top of the abutment end, causing the drain pipe seat to move downwards and compress the sealing ring, causing it to expand radially.

[0007] The present invention is further provided with parallel guide slopes on the front side of the bottom of the limiting protrusion and the front side of the top of the abutting end.

[0008] The present invention is further configured such that the lower end of the through hole is connected to a connecting seat by a thread, and the side wall of the connecting seat is integrally formed with the abutment ring.

[0009] The present invention is further configured such that an odor-proof seat is snapped into the bottom of the connecting seat, an odor-proof pad is hinged to the bottom of the odor-proof seat, and a reset torsion spring is provided at the hinge.

[0010] The present invention is further provided that the outer wall of the drain pipe seat is provided with a number of grooves at intervals.

[0011] The present invention is further configured such that the upper end of the through hole is formed with an upward-facing tapered flare, and the top of the sleeve seat is screwed with a locking nut.

[0012] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0013] 1. The odor-proof drainer provided by this utility model uses a locking lever to rotate inward along the hinge column, which drives the drain pipe seat to move downward, allowing the sealing ring to expand radially and thus fixing the pipe fitting fitted in the installation notch. This structure is easy to operate, and the locking structure occupies little space and is easy to install.

[0014] 2. Furthermore, the limiting protrusion and the abutment end of this utility model have parallel guide slopes, so that the locking lever has a transition range during rotation, making the downward movement of the drain pipe seat smoother.

[0015] 3. The present invention has a connecting seat threaded at the bottom of the through hole, and the abutment ring is integrally formed on the side wall of the connecting seat, which provides convenience for fixing the sealing ring. At the same time, the abutment ring has sufficient structural strength to ensure that the lower end of the sealing ring abuts for a long time.

[0016] 4. The present invention employs several grooves spaced apart on the side wall of the drain pipe seat, which allows for clear observation of the installation depth of the pipe fitting and verification of whether it is installed accurately. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0019] Figure 3 This is an exploded view of the present invention;

[0020] Figure label:

[0021] 1-Sleeve seat; 10-Through hole; 11-Hinged post; 12-Locking nut;

[0022] 2-Locking lever; 20-Limiting protrusion; 21-Guide slope;

[0023] 3-Drain pipe seat; 30-Installation notch; 31-Abutting end; 32-Groove;

[0024] 4-Sealing ring; 5-Abutment ring; 6-Connecting seat; 7-Odor-proof seat; 70-Odor-proof pad. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1 — Figure 3 :

[0026] An odor-proof drain assembly includes a sleeve base 1 connected to the bottom of a washbasin. A through hole 10 is formed inside the sleeve base 1. Opposing hinge posts 11 are provided on the side wall of the sleeve base 1. A locking lever 2 is hinged to each hinge post 11. A limit protrusion 20 is provided at the bottom of the locking lever 2 near the hinge end. A drain pipe seat 3 located below the hinge posts 11 is fitted onto the sleeve base 1. The side wall of the drain pipe seat 3 has an opening facing downwards for securing the end of a pipe fitting. The upper end of the drain pipe seat 3 is provided with… The sleeve seat 3 is provided with an abutment end 31 corresponding to the limiting protrusion 20. A sealing ring 4 is fitted on the sleeve seat 3, and the bottom of the drain pipe seat 3 is embedded in the gap between the sleeve seat 1 and the sealing ring 4. An abutment ring 5 is provided on the sleeve seat 3 for abutting the bottom of the sealing ring 4. When the locking lever 2 is hinged and rotated along the hinge post 11 and fits against the side wall of the sleeve seat 1, the bottom of the limiting protrusion 20 abuts against the top of the abutment end 31, causing the drain pipe seat 3 to move downward and compress the sealing ring 4 to expand radially.

[0027] During implementation, the locking lever is first hinged open, then the pipe is placed against the installation notch 30. The locking lever is then hinged closed, the limiting protrusion abuts the abutting end, and the drain pipe seat 3 moves downward along the sleeve seat 1. The downward movement of the drain pipe seat expands the inner diameter of the sealing ring, and the expanded sealing ring abuts the inner wall of the pipe, thus fixing the pipe.

[0028] This drain assembly has a simple structure, is easy to operate, and is easy to install in confined spaces.

[0029] It is worth mentioning that the sealing ring has a sealing ring structure, and the upper end of the sealing ring has an flared shape, which can facilitate the insertion of the bottom of the drain pipe seat, thereby expanding the sealing ring; at the same time, the ring shape can have a larger contact area with the inner wall of the pipe, thereby improving the fixing effect.

[0030] Preferably, parallel guide slopes 21 are provided on the front side of the bottom of the limiting protrusion 20 and the front side of the top of the abutting end 31.

[0031] In order to make the locking lever close more smoothly when hinged, the parallel guide slope 21 effectively reduces resistance when the contact end contacts the limiting protrusion, ensuring that the drain pipe seat 3 moves downward normally.

[0032] Preferably, the lower end of the through hole 10 is connected to a connecting seat 6 by a thread, and the side wall of the connecting seat 6 is integrally formed with the abutment ring 5.

[0033] The above structure facilitates the installation of the sealing ring, while the integrally formed abutment ring 5 on the side wall of the connecting seat ensures the structural strength and stabilizes the inner wall of the inner support pipe.

[0034] Preferably, the bottom of the connecting seat 6 is snapped with an odor-proof seat 7, the bottom of the odor-proof seat 7 is hinged with an odor-proof pad 70, and a reset torsion spring is provided at the hinge.

[0035] Preferably, the outer wall of the drain pipe seat 3 is provided with a plurality of grooves 32 at intervals.

[0036] During implementation, the groove 32 can indicate whether the pipe is fully inserted into the installation notch 30, providing a visual verification function.

[0037] Preferably, the upper end of the through hole 10 is formed with an upward-facing tapered flare, and the top of the sleeve seat 1 is screwed with a locking nut 12.

[0038] The above structure provides a locking function for the top of the through hole 10, facilitating overall installation and use.

[0039] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A deodorizing trap comprising a sleeve seat (1) connected to the bottom of a washbasin, characterized in that, The sleeve seat (1) has a through hole (10) and a hinge post (11) is provided on the side wall of the sleeve seat (1). A locking lever (2) is hinged on the hinge post (11). A limit protrusion (20) is provided at the bottom of the locking lever (2) near the hinge end. A drain pipe seat (3) located below the hinge post (11) is sleeved on the sleeve seat (1). The side wall of the drain pipe seat (3) has an installation notch (30) that opens downward and is used to lock the end of the pipe fitting. The upper end of the drain pipe seat (3) is provided with a notch that corresponds to the limit protrusion (20). The corresponding abutting end (31) is provided with a sealing ring (4) on the sleeve seat (3), and the bottom of the drain pipe seat (3) is embedded in the gap between the sleeve seat (1) and the sealing ring (4). The sleeve seat (3) is provided with an abutting ring (5) for abutting the bottom of the sealing ring (4). When the locking lever (2) is hinged and rotated along the hinge post (11) and fits against the side wall of the sleeve seat (1), the bottom of the limiting protrusion (20) abuts against the top of the abutting end (31), causing the drain pipe seat (3) to move downward and squeeze the sealing ring (4) to make it expand radially.

2. The odor-resistant trap of claim 1, wherein Parallel guide slopes (21) are provided on the front side of the bottom of the limiting protrusion (20) and the front side of the top of the abutting end (31).

3. The odor-resistant trap of claim 1, wherein The lower end of the through hole (10) is connected to a connecting seat (6) by a thread, and the abutment ring (5) is integrally formed on the side wall of the connecting seat (6).

4. The odor-resistant trap of claim 3, wherein The bottom of the connecting seat (6) is snapped with an odor-proof seat (7), and the bottom of the odor-proof seat (7) is hinged with an odor-proof pad (70), and a reset torsion spring is provided at the hinge.

5. The odor-resistant trap of claim 1, wherein The outer wall of the drain pipe seat (3) is provided with a number of grooves (32) at intervals.

6. The odor-resistant drain of claim 1, wherein The upper end of the through hole (10) is formed with an upward-facing tapered flare, and the top of the sleeve seat (1) is screwed with a locking nut (12).

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