Drainer assembly

Abstract

The drainer assembly comprises a mounting pipe and a filter screen, the inner wall of the mounting pipe is provided with a circle of step used for placing the filter screen and a connecting surrounding edge located at the upper end of the step, the connecting surrounding edge is used for being tightly connected with the periphery of the filter screen, the upper end of the mounting pipe is provided with a turned-over edge, and the periphery of the mounting pipe is provided with a first sealing ring located below the first turned-over edge; and the mounting pipe is provided with an external thread and is connected with a mounting nut through the external thread. Compared with the drainer in the prior art, the drainer provided by the utility model has the advantages of fewer components and simple structure, thereby reducing the cost of the drainer. The connecting surrounding edge can reinforce the connection between the filter screen and the mounting pipe and prevent the filter screen from being easily separated from the mounting pipe; when blockages of the filter screen need to be cleaned, the filter screen and the mounting pipe can be detached, the diameter width of the filter screen is smaller than the inner diameter of the mounting pipe, sewage blocked on the filter screen can flow out along a gap between the filter screen and the mounting pipe in the detaching process of the filter screen and the mounting pipe, and the problem that water is difficult to enter when the filter screen is cleaned is solved.

Description

Technical Field

[0001] The utility model relates to the field of drainage devices, and particularly to a drainer assembly. Background Art

[0002] A drainer refers to a drainage device installed at the sewer of a bathtub, washbasin, etc., generally used in a kitchen or a bathroom. For example, a Chinese patent with the publication number CN201649211U discloses an anti-pollution drainer, which includes a bowl-shaped member, a basket placed in the bowl-shaped member, a water sealing cover, a water outlet pipe connecting the sewer pipe and the bowl-shaped member, a connecting pipe, a small nut threadedly connected to the external thread of the connecting pipe, a large nut threadedly connected to the external thread of the bowl-shaped member, etc. The above anti-pollution drainer has a large number of components and a complex structure, resulting in a high cost of the drainer.

[0003] There is also a drainer assembly in the prior art, which includes a stainless steel installation pipe and a filter screen welded inside the installation pipe. It is difficult to separately remove the filter screen for cleaning.

[0004] In view of this, the utility model provides a drainer assembly with fewer components to solve the above problems. Content of the Utility Model

[0005] The utility model overcomes the above-mentioned deficiencies in the technology and provides a drainer assembly. To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A drainer assembly includes an installation pipe and a filter screen. An inner wall of the installation pipe is provided with a circle of steps for placing the filter screen and a connecting border located above the steps. The connecting border is used for tightly connecting an outer circumference of the filter screen. An upper end of the installation pipe is provided with a flanging, and an outer circumference of the installation pipe is provided with a first sealing ring located below the first flanging; the installation pipe is provided with an external thread, and the installation pipe is threadedly connected with an installation nut through the external thread.

[0007] Preferably, from the connecting border to an upper end pipe orifice of the installation pipe, an inner diameter of the installation pipe gradually increases.

[0008] Preferably, the drainer assembly further includes a sealing cover covering the upper end pipe orifice of the installation pipe, and a handle is provided on a top of the sealing cover.

[0009] Preferably, the sealing cover includes an inclined side for fitting an inner wall of the installation pipe.

[0010] Preferably, a second sealing ring is provided on an outer circumference of the installation pipe and located above the installation nut.

[0011] Preferably, an upper end surface of the installation nut is a second flanging, and the second sealing ring faces the second flanging.

[0012] Preferably, a clamping groove for connecting the water outlet pipe is provided on the inner wall of the installation pipe, and the clamping groove is located at the lower end opening of the installation pipe.

[0013] Preferably, the filter screen is a metal plate, and filter holes are provided on the metal plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Compared with the prior art drainer, the present utility model includes an installation pipe, a filter screen, an installation nut, and a first sealing ring, with fewer components and a simple structure, thus reducing the cost of the drainer.

[0016] 2. The connecting edge can both reinforce the connection between the filter screen and the installation pipe to prevent the filter screen from easily detaching from the installation pipe; when it is necessary to clean the blockage on the filter screen, the filter screen can be disassembled from the installation pipe. Since the connecting edge is connected to the filter screen and the diameter width of the filter screen is smaller than the inner diameter of the installation pipe, the sewage blocked on the filter screen can flow out along the gap between the filter screen and the installation pipe during the disassembly process of the filter screen and the installation pipe, avoiding the problem of difficult drainage when cleaning the filter screen.

[0017] 3. From the connecting edge to the upper end opening of the installation pipe, the inner diameter of the installation pipe gradually increases, making the inner wall of the installation pipe incline inwards from top to bottom. The sewage around the upper end opening of the installation pipe flows down along the inner wall of the installation pipe, playing a role in guiding the flow, thereby improving the drainage speed. Brief Description of the Drawings

[0018] Figure 1 is an overall schematic diagram of a drainer assembly of the present utility model;

[0019] Figure 2 is Figure 1 a cross-sectional view of the A-A plane of

[0020] Figure 3 is an exploded schematic diagram of a drainer assembly of the present utility model;

[0021] The implementation, functional features, and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiment

[0022] The following further details the features of the present utility model and other related features through embodiments for the understanding of those skilled in the same industry:

[0023] Refer to Figures 1-3 , and a specific embodiment of a drainer assembly of the present utility model is proposed:

[0024] A drainer assembly includes an installation pipe 1 and a filter screen 2. The inner wall of the installation pipe 1 is provided with a step 11 for placing the filter screen 2 and a connecting flange 12 located above the step 11. The connecting flange 12 is used to tightly connect the outer periphery of the filter screen 2, reinforce the connection between the filter screen 2 and the installation pipe 1, and prevent the filter screen 2 from easily detaching from the installation pipe 1. Moreover, when it is necessary to clean the blockage of the filter screen 2, the filter screen 2 can be disassembled from the installation pipe 1. Since the connecting flange 12 is connected to the filter screen 2 and the diameter width of the filter screen 2 is smaller than the inner diameter of the installation pipe 1, the sewage blocked on the filter screen 2 can flow out along the gap between the filter screen 2 and the installation pipe 1 during the disassembly process of the filter screen 2 and the installation pipe 1, avoiding the problem of difficult drainage when cleaning the filter screen 2.

[0025] As Figure 1 shown, the upper end of the installation pipe 1 is provided with a first flanging 13, and a first sealing ring 3 is arranged on the outer periphery of the installation pipe 1 and located below the first flanging 13. The installation pipe 1 is provided with an external thread 14, and the installation pipe 1 is connected with an installation nut 4 through the external thread 14. The utility model is installed in the sink through the installation nut 4, and the first sealing ring 3 is used to prevent the sewage in the sink from flowing out along the outer wall of the installation pipe 1.

[0026] As Figure 2 shown, from the connecting flange 12 to the upper end pipe orifice of the installation pipe 1, the inner diameter of the installation pipe 1 gradually increases, so that the inner wall of the installation pipe 1 inclines inwards from top to bottom. The sewage around the first flanging 13 flows down along the inner wall of the installation pipe 1, playing a role in drainage, thereby improving the drainage speed.

[0027] The drainer assembly further includes a sealing cover 5 covering the upper end pipe orifice of the installation pipe 1. The top of the sealing cover 5 is provided with a handle 51, and the sealing cover 5 includes an inclined side 52 for fitting the inner wall of the installation pipe 1.

[0028] A second sealing ring 6 is arranged on the outer periphery of the installation pipe 1, and the second sealing ring 6 is located between the installation nut 4 and the first sealing ring 3 to strengthen the sealing performance of the connection between the installation nut 4 and the installation pipe 1. The upper end face of the installation nut 4 is a second flanging 41, and the second sealing ring 6 is opposite to the second flanging 41. The second flanging is used to tightly press the second sealing ring 6 against the outer wall of the sink.

[0029] The inner wall of the installation pipe 1 is provided with a clamping groove 15 for connecting a water outlet pipe, and the clamping groove 15 is located at the lower end pipe orifice of the installation pipe 1.

[0030] As Figure 3 shown, the filter screen 2 is a metal plate, and filter holes 21 are arranged on the metal plate. The filter screen 2 has a simple structure and low cost.

[0031] Compared with the existing drainer, the utility model includes an installation pipe 1, a filter screen 2, an installation nut 4, a first sealing ring 3, a second sealing ring 6, and a sealing cover 5. The number of components is small and the structure is simple, thereby reducing the cost of the drainer.

[0032] The above are only the preferred embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A drain assembly, characterized in that: The invention comprises a mounting tube (1) and a filter screen (2); the inner wall of the mounting tube (1) is provided with a circle of steps (11) for placing the filter screen (2), and a connecting edge (12) located at the upper end of the step (11); the connecting edge (12) is used to tightly connect the outer periphery of the filter screen (2); the upper end of the mounting tube (1) is provided with a first flange (13); the outer periphery of the mounting tube (1) is provided with a first sealing ring (3) located below the first flange (13); the mounting tube (1) is provided with an external thread (14); and the mounting tube (1) is connected to a mounting nut (4) via the external thread (14).

2. A drain assembly according to claim 1, characterized in that: From the connecting edge (12) to the upper end of the installation tube (1), the inner diameter of the installation tube (1) gradually increases.

3. A drain assembly according to claim 2, characterized in that: It also comprises a sealing cover (5) covering the upper end of the installation tube (1), and a handle (51) is provided on the top of the sealing cover (5).

4. A drain assembly according to claim 3, characterized in that: The sealing cover (5) comprises a beveled edge (52) for fitting against the inner wall of the mounting tube (1).

5. A drain assembly according to claim 1, characterized in that: The outer periphery of the mounting tube (1) is provided with a second sealing ring (6) located above the mounting nut (4).

6. A drain assembly according to claim 5, characterized in that: The upper end surface of the mounting nut (4) is a second flange (41), and the second sealing ring (6) is opposite to the second flange (41).

7. A drain assembly according to claim 1, characterized in that: The inner wall of the installation pipe (1) is provided with a clamping groove (15) for connecting to a water outlet pipe, and the clamping groove (15) is located at the pipe opening at the lower end of the installation pipe (1).

8. A drain assembly according to claim 1, characterized in that: The filter screen (2) is a metal plate, and filter holes (21) are provided on the metal plate.

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